Abstract:
A high-efficiency mining machine for percussing falling-materials without trapping materials. Also disclosed is a high-efficiency mining method for percussing falling-materials without trapping materials. The mining machine has a simple structure and works in a reliable way.

Description:
FIELD OF THE INVENTION 
       [0001]    The present invention belongs to the field of machinery, is especially suitable for the field of digging machinery or engineering machinery, and particularly relates to an efficient impact blanking digging method without material clamping and an efficient impact blanking digging machine without material clamping. 
       BACKGROUND OF THE INVENTION 
       [0002]    The existing impact type digging impact mechanisms as punching and cutting digging equipment, impact heading equipment, bucket excavating equipment and the like is generally a double-layer impact mechanism or a multilayer impact mechanism. For the structural form of the double-layer or multilayer impact mechanism on the digging equipment, the structural forms of an inner-layer impact mechanism and an outer-layer impact mechanism are generally uniform structures or similar structures. Therefore, in a material impacting process of the impact mechanisms, a material clamped between the impact mechanisms cannot be discharged. Namely, after being dug by the inner-layer impact mechanism close to a material layer, the material is clamped between the inner and outer-layer impact mechanisms and cannot be discharged, a material block failing to be discharged is extruded into broken materials, thus reducing the lump material rate of the produced material and increasing the operation resistance of the impact mechanisms, and the material block failing to be discharged causes break-off of the impact mechanisms to damage the application performance of the equipment and even prevent continuous production if the case is serious. 
         [0003]    In order to solve the above-mentioned problems, the present invention provides an efficient impact blanking digging method without material clamping and an efficient impact blanking digging machine without material clamping. 
       SUMMARY OF THE INVENTION 
       [0004]    The present invention provides an efficient impact blanking digging method without material clamping, including the following steps: an impact blanking mechanism and the like are arranged on the machine body of a digging machine, wherein the impact blanking mechanism includes an outer-layer material impact mechanism and/or an inner-layer material impact mechanism and the like, the outer-layer material impact mechanism and the inner-layer material impact mechanism are arranged side by side, the outer-layer material impact mechanism includes outer-layer material impact teeth and the like, the arrangement of the outer-layer material impact teeth is conductive to blanking the outer-layer material of a material layer to be dug, the outer-layer material impact teeth are conductive to enabling the material blanked by the inner-layer material impact mechanism to flow out from the gaps of the outer-layer material impact teeth and/or a discharge hole is reserved on the outer-layer material impact mechanism to enable the material blanked by the inner-layer material impact mechanism to flow out from the discharge hole of the outer-layer material impact mechanism, the inner-layer material impact mechanism includes inner-layer material impact teeth and the like, and the inner-layer material impact mechanism and/or the outer-layer material impact mechanism cooperate to realize impact blanking and discharging. 
         [0005]    The present invention further provides an efficient impact blanking digging machine without material clamping used for implementing the efficient impact blanking digging method without material clamping, including a machine body, a walking mechanism and the like, wherein the efficient impact blanking digging machine without material clamping further includes an impact blanking mechanism and the like, the walking mechanism is arranged at the front part, the rear part or the lower part and the like of the machine body, the impact blanking mechanism is connected with the machine body, the impact blanking mechanism includes an outer-layer material impact mechanism and/or an inner-layer material impact mechanism and the like, the outer-layer material impact mechanism and the inner-layer material impact mechanism are arranged adjacently, the outer-layer material impact mechanism includes outer-layer material impact teeth and the like, the inner-layer material impact mechanism includes inner-layer material impact teeth and the like, the arrangement of the outer-layer material impact teeth is conductive to blanking the outer-layer material of a material layer to be dug and is conductive to enabling the material blanked by the inner-layer material impact teeth to flow out from the gaps of the outer-layer material impact teeth and/or the outer-layer material impact mechanism is provided with a discharge hole to enable the material blanked by the inner-layer material impact mechanism to flow out from the discharge hole of the outer-layer material impact mechanism, and the inner-layer material impact mechanism and/or the outer-layer material impact mechanism cooperate to realize impact blanking and discharging. 
         [0006]    The arrangement and/or shape of the outer-layer material impact teeth is conductive to blanking the outer-layer material of the material layer to be dug and is conductive to enabling the material blanked by the inner-layer material impact teeth to flow out from the gaps of the outer-layer material impact teeth. 
         [0007]    The outer-layer material impact mechanism includes an outer-layer material impact tooth frame and the like, wherein the outer-layer material impact teeth and the outer-layer material impact tooth frame are movably connected or are integrated. 
         [0008]    The inner-layer material impact mechanism includes an inner-layer material impact tooth frame and the like, wherein the inner-layer material impact teeth and the inner-layer material impact tooth frame are movably connected or are integrated. 
         [0009]    The outer-layer material impact teeth include one or more rows of impact teeth and the like. 
         [0010]    The inner-layer material impact teeth include one or more rows of impact teeth and the like. 
         [0011]    The impact teeth include a front row of impact teeth and/or a rear row of impact teeth and the like. 
         [0012]    The front row of impact teeth and/or rear row of impact teeth include impact teeth with non material clamping shapes, wherein the impact teeth with non material clamping shapes are conductive to discharging the material blanked by the front row impact teeth and/or rear row impact teeth and the like and are conductive to continuous digging, discharging and the like. 
         [0013]    The arrangement and/or shape of the front row of impact teeth of the same outer-layer material impact tooth is conductive to enabling the material shoveled off by the rear row of impact teeth to flow out from the gaps of the front row of impact teeth. 
         [0014]    The front row of impact teeth and the rear row of impact teeth form a length difference, the length difference is equal to an impact stroke or the length difference is larger than the impact stroke or the length difference is smaller than the impact stroke, and the like, the front row of impact teeth and/or the rear row of impact teeth are used for impacting a material wall into a step shape to break the structural strength of the material wall, and during secondary impact, the front row of impact teeth and/or the rear row of impact teeth are used for blanking through a free surface formed by the step-shaped material wall, in order to reduce the impact resistance, reduce the granularity of the material block and facilitate the outflow of the material. 
         [0015]    The outer-layer material impact teeth and the outer-layer material impact tooth frame and/or the inner-layer material impact teeth and the inner-layer material impact tooth frame are connected by means of a bolt, a catching groove, a pin, a pin shaft, an eccentric connecting element, an inserting hole, a jaw and/or a taper sleeve and the like. The arrangement and/or shape of the inner-layer material impact teeth is conductive to blanking and cleaning a material surface, so as to form the material surface into a necessary shape. 
         [0016]    The outer-layer material impact teeth include a main outer-layer material impact tooth and/or an outer-layer material top face cleaning tooth and/or an outer-layer material bottom surface cleaning tooth and the like. 
         [0017]    The outer-layer material impact teeth include a main outer-layer material impact tooth and/or an outer-layer material top face cleaning tooth and/or an outer-layer material bottom surface cleaning tooth and the like, and the main outer-layer material impact tooth and/or the outer-layer material top face cleaning tooth and/or the outer-layer material bottom surface cleaning tooth and the like are used for cleaning the top face and/or the bottom surface of the material wall while blanking. 
         [0018]    The inner-layer material impact teeth include a main inner-layer material impact tooth and/or an inner-layer material top face cleaning tooth and/or an inner-layer material bottom surface cleaning tooth and the like. 
         [0019]    The inner-layer material impact teeth include a main inner-layer material impact tooth and/or an inner-layer material top face cleaning tooth and/or an inner-layer material bottom surface cleaning tooth and the like, and the main inner-layer material impact tooth and/or the inner-layer material top face cleaning tooth and/or the inner-layer material bottom surface cleaning tooth and the like are used for cleaning the material wall while blanking to facilitate retaining and protecting, in order to ensure the successful pass of the machine body to perform continuous digging. 
         [0020]    The inner-layer material impact teeth and/or the inner-layer material impact tooth frame and the like incline towards the material wall for certain angles, to help the inner-layer material impact teeth to obliquely cut the material wall. 
         [0021]    The outer-layer material impact mechanism includes an outer-layer impact stroke component and the like, and the outer-layer material impact teeth and/or the outer-layer material impact tooth frame and the like are symmetrically arranged at two ends of the outer-layer impact stroke component. 
         [0022]    The outer-layer material impact mechanism includes an outer-layer impact stroke component and the like, and the outer-layer material impact teeth and/or the outer-layer material impact tooth frame and the like are asymmetrically arranged at two ends of the outer-layer impact stroke component. 
         [0023]    The outer-layer material impact mechanism includes an outer-layer impact stroke component and the like, and the outer-layer material impact teeth and/or the outer-layer material impact tooth frame and the like are arranged at one end of the outer-layer impact stroke component. 
         [0024]    The outer-layer impact stroke component and the outer-layer material impact tooth frame are movably connected or are integrated. 
         [0025]    The inner-layer material impact mechanism includes an inner-layer impact stroke component and the like, and the inner-layer material impact teeth and/or the inner-layer material impact tooth frame and the like are symmetrically arranged at two ends of the inner-layer impact stroke component. 
         [0026]    The inner-layer material impact mechanism includes an inner-layer impact stroke component and the like, and the inner-layer material impact teeth and/or the inner-layer material impact tooth frame and the like are asymmetrically arranged at two ends of the inner-layer impact stroke component. 
         [0027]    The inner-layer material impact mechanism includes an inner-layer impact stroke component and the like, and the inner-layer material impact teeth and/or the inner-layer material impact tooth frame and the like are arranged at one end of the inner-layer impact stroke component. 
         [0028]    The inner-layer impact stroke component and the inner-layer material impact tooth frame are movably connected or are integrated. 
         [0029]    The outer-layer material impact mechanism includes an outer-layer impact stroke component and the like, the outer-layer material impact teeth and/or the outer-layer material impact tooth frame are arranged at one end of the outer-layer impact stroke component, and a counterweight member is arranged at the other end of the outer-layer impact stroke component. 
         [0030]    The inner-layer material impact mechanism includes an inner-layer impact stroke component and the like, the inner-layer material impact teeth and/or the inner-layer material impact tooth frame are arranged at one end of the inner-layer impact stroke component, and a counterweight member is arranged at the other end of the inner-layer impact stroke component. 
         [0031]    The outer-layer material impact tooth frame includes a rear supporting seat, an outer-layer material impact tooth supporting frame and the like, the rear supporting seat and the outer-layer material impact tooth supporting frame and the like form a discharge hole, and there is one or multiple discharge holes. 
         [0032]    The discharge hole includes an arched discharge hole and/or a cambered discharge hole and/or a square discharge hole and/or a trapezoidal discharge hole and/or a triangular discharge hole and/or a polygonal discharge hole and/or a deformed discharge hole and the like. 
         [0033]    The height of the rear supporting seat is smaller than or equal to or larger than the height of the outer-layer material impact tooth supporting frame. 
         [0034]    The rear supporting seat and the outer-layer material impact tooth supporting frame are movably connected or are integrated. 
         [0035]    The impact blanking mechanism includes a power box body and the like, the rear supporting seat is provided with a rear supporting seat material baffle and the like, and the rear supporting seat material baffle is arranged along the surface of the power box body and relatively reciprocates along the surface of the power box body. 
         [0036]    The impact blanking mechanism includes a power box body and the like, the inner-layer material impact mechanism includes an inner-layer tooth seat and the like, the inner-layer tooth seat is provided with an inner-layer tooth seat material baffle and the like, and the inner-layer tooth seat material baffle is arranged along the surface of the power box body and relatively reciprocates along the surface of the power box body. The impact blanking mechanism includes an impact actuator and the like, a breakage-proof impact actuator structure and the like are arranged between the impact actuator and the outer-layer material impact tooth frame and/or the inner-layer material impact tooth frame, the breakage-proof impact actuator structure includes a rotary breakage-proof impact actuator structure or a separated breakage-proof impact actuator structure or a buffering breakage-proof impact actuator structure and the like, the impact actuator is used for driving the outer-layer material impact teeth and/or the inner-layer material impact teeth to impact, an impact counteraction force is applied to the breakage-proof impact actuator structure, and the rotary breakage-proof impact actuator structure rotates or the separated breakage-proof impact actuator structure separately isolates or the buffering breakage-proof impact actuator structure buffers and the like to prevent the impact counteraction force from breaking off and damaging the impact actuator. 
         [0037]    The outer-layer impact stroke component includes outer-layer reciprocating guide rods and the like, the outer-layer reciprocating guide rods are symmetrically or asymmetrically arranged on the outer-layer material impact tooth frame, the outer-layer reciprocating guide rods are symmetrically arranged to enlarge the correction force of the outer-layer material impact tooth frame to maintain the reciprocating impact balance of the outer-layer material impact tooth frame, in order to prevent the break-off of the outer-layer material impact tooth frame and the impact actuator. 
         [0038]    The inner-layer impact stroke component includes inner-layer reciprocating guide rods and the like, the inner-layer reciprocating guide rods are symmetrically or asymmetrically arranged on the inner-layer material impact tooth frame, the outer-layer reciprocating guide rods are symmetrically arranged to enlarge the correction force of the inner-layer material impact tooth frame to maintain the reciprocating impact balance of the inner-layer material impact tooth frame, in order to prevent the break-off of the inner-layer material impact tooth frame and the impact actuator. 
         [0039]    The machine body includes a hydraulic system and/or an electric system and/or a water mist spray system and the like. 
         [0040]    The machine body includes a rotary disk and the like, the rotary disk is arranged at the upper part and/or the lower part and the like of the machine body, when the rotary disk is arranged at the upper part of the machine body, the impact blanking mechanism is arranged on the rotary disk, the rotary disk drives the impact blanking mechanism to rotate to perform impact blanking in multiple directions, when the rotary disk is arranged at the lower part of the machine body, the impact blanking mechanism is arranged on the machine body, the rotary disk drives the machine body to rotate, and the machine body drives the impact blanking mechanism to rotate to perform impact blanking in multiple directions. 
         [0041]    Compared with the existing digging equipment, the utility model has the following beneficial effects: 
         [0000]    1) the arrangement of the outer-layer material impact teeth is conductive to blanking the outer-layer material of the material layer to be dug, the outer-layer material impact teeth are conductive to enabling the material blanked by the inner-layer material impact mechanism to flow out from the gaps of the outer-layer material impact teeth and/or the discharge hole is reserved on the outer-layer material impact mechanism to enable the material blanked by the inner-layer material impact mechanism to flow out from the discharge hole of the outer-layer material impact mechanism, the inner-layer material impact mechanism and the outer-layer material impact mechanism cooperate to realize impact blanking and discharging, so that the problem that the material clamped between the impact blanking mechanisms cannot be discharged to cause continuous digging failure of the digging machine is solved, successful digging, blanking, discharging and material loading of the impact blanking digging machine are achieved, and the digging efficiency is improved;
 
2) since the discharge hole is arranged between the rear supporting seat and the outer-layer material impact tooth supporting frame, the outer-layer material impact teeth are arranged on the outer-layer material impact tooth supporting frame, to reduce the lengths of the outer-layer material impact teeth and reduce the break-off of the impact tooth seat and the impact teeth due to the excessive lengths of the outer-layer material impact teeth;
 
3) the structural forms of the multiple impact teeth arranged side by side are different, so that the break-off of the impact mechanisms caused by material clamping of the impact teeth is avoided;
 
4) damping of an impact blanking mechanism driving device caused by material clamping is reduced to facilitate safe operation of the equipment;
 
5) when the impact blanking mechanism impacts the material wall, the outer-layer material impact mechanism and the inner-layer material impact mechanism are applied with a balanced stress, in order to reduce the impact break-off damage of a power shaft;
 
6) multiple rows of impact teeth are arranged on the outer-layer material impact tooth frame and/or the inner-layer material impact tooth frame, in order to ensure the granularity of the dug material to be adapted to transportation or use;
 
7) multiple layers of impact mechanisms are adopted to improve the working efficiency, increase the digging breadth and improve the digging yield;
 
8) the multiple layers of impact mechanisms are used for blanking the material to be dug in layers to reasonably utilize the power and ensure the strength of the equipment;
 
9) the outer-layer material impact mechanism is only used for blanking a material layer needing blanking without cleaning the side face of the material layer, thereby reducing the energy consumption caused by surface cleaning;
 
10) the arrangement and/or shape of the inner-layer material impact teeth is conductive to blanking and cleaning the material surface, so as to form the material surface into the necessary shape to facilitate retaining and protecting and to ensure the successful pass of the machine body to perform continuous digging;
 
11) the inner-layer material impact teeth and/or the inner-layer material impact tooth frame and the like incline towards the material wall for certain angles, to help the inner-layer material impact teeth to obliquely cut the material wall;
 
12) the reciprocating guide rods are symmetrically arranged on the outer-layer material impact tooth frame and/or the inner-layer material impact tooth frame, the symmetrically arranged reciprocating guide rods enlarge the correction force of the outer-layer material impact tooth frame and/or the inner-layer material impact tooth frame to maintain the reciprocating impact balance of the outer-layer material impact tooth frame and/or the inner-layer material impact tooth frame, in order to prevent the break-off of the outer-layer material impact tooth frame and/or the inner-layer material impact tooth frame and the impact actuator;
 
13) the outer-layer material impact tooth frame and/or the inner-layer material impact tooth frame are respectively arranged at the two ends of the reciprocating guide rods to balance the weights at the two ends of the reciprocating guide rods, reduce the break-off of the reciprocating guide rods resulting from unbalanced weights and achieve reverse digging without reversing the machine body;
 
14) the material baffle is arranged at the rear end of the rear supporting seat to prevent the material from entering a shovel tooth supporting frame and the power box body, protect the reciprocating impact component and improve the performance and the service life of the equipment;
 
15) the breakage-proof impact actuator structure is arranged between the impact actuator and the outer-layer material impact tooth frame and/or the inner-layer material impact tooth frame, the impact actuator is used for driving the outer-layer material impact teeth and/or the inner-layer material impact teeth to impact, the impact counteraction force is applied on the breakage-proof impact actuator structure, and the rotary breakage-proof impact actuator structure rotates or the separated breakage-proof impact actuator structure separately isolates or the buffering breakage-proof impact actuator structure buffers and the like to prevent the impact counteraction force from breaking off and damaging the impact actuator, and an impact counteraction break-off collapsing force is decomposed and separated before being transferred onto the impact actuator and the machine body, so that the service life of the entire machine is greatly prolonged;
 
16) when the rotary disk is arranged at the upper part of the machine body, the impact blanking mechanism is arranged on the rotary disk, the rotary disk drives the impact blanking mechanism to rotate to perform impact blanking in multiple directions, when the rotary disk is arranged at the lower part of the machine body, the impact blanking mechanism is arranged on the machine body, the rotary disk drives the machine body to rotate, and the machine body drives the impact blanking mechanism to rotate to perform impact blanking in multiple directions, so that the digging flexibility of the impact blanking mechanism is greatly improved, the digging width and range are increased and the digging efficiency is enhanced;
 
17) the distances from the front row of impact teeth and the rear row of impact teeth to the power box body are arranged to be different to impact a coal wall into a step shape, thereby greatly decreasing the web of one impact of each impact tooth, effectively decomposing the pressure stress of the material wall, reducing the impact resistance, improving working efficiency and saving power consumption.
 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0042]      FIG. 1  is a front view of an efficient impact blanking digging machine without material clamping in embodiment 1; 
           [0043]      FIG. 2  is a top view of an efficient impact blanking digging machine without material clamping in embodiment 1; 
           [0044]      FIG. 3  is a schematic diagram of a structure of an outer-layer material impact mechanism of an efficient impact blanking digging machine without material clamping in embodiment 1; 
           [0045]      FIG. 4  is a schematic diagram of a structure of an inner-layer material impact mechanism of an efficient impact blanking digging machine without material clamping in embodiment 1; 
           [0046]      FIG. 5  is a schematic diagram of installation of impact teeth of an efficient impact blanking digging machine without material clamping in embodiment 1; 
           [0047]      FIG. 6  is a front view of an efficient impact blanking digging machine without material clamping in embodiment 2; 
           [0048]      FIG. 7  is a top view of an efficient impact blanking digging machine without material clamping in embodiment 2; 
           [0049]      FIG. 8  is a schematic diagram of an overlooking structure of an impact blanking digging mechanism in embodiment 2; 
           [0050]      FIG. 9  is a schematic diagram of installation of impact teeth of an efficient impact blanking digging machine without material clamping in embodiment 2; 
           [0051]      FIG. 10  is a front view of an efficient impact blanking digging machine without material clamping in embodiment 3; 
           [0052]      FIG. 11  is a top view of an efficient impact blanking digging machine without material clamping in embodiment 3; 
           [0053]      FIG. 12  is a schematic diagram of an overlooking structure of an impact blanking digging mechanism in embodiment 3; 
           [0054]      FIG. 13  is a schematic diagram of a structure of an outer-layer material impact mechanism of an efficient impact blanking digging machine without material clamping in embodiment 3; 
           [0055]      FIG. 14  is a schematic diagram of a structure of an inner-layer material impact mechanism of an efficient impact blanking digging machine without material clamping in embodiment 3; 
           [0056]      FIG. 15  is a schematic diagram of installation of impact teeth of an efficient impact blanking digging machine without material clamping in embodiment 3; 
           [0057]      FIG. 16  is a schematic diagram of a front view structure of an impact blanking digging mechanism in embodiment 4; 
           [0058]      FIG. 17  is a schematic diagram of an overlooking structure of an impact blanking digging mechanism in embodiment 4; 
           [0059]      FIG. 18  is a schematic diagram of a front view structure of an impact blanking digging mechanism in embodiment 5; 
           [0060]      FIG. 19  is a schematic diagram of a structure of an outer-layer material impact mechanism of an efficient impact blanking digging machine without material clamping in embodiment 6; 
           [0061]      FIG. 20  is a schematic diagram of a structure of an inner-layer material impact mechanism of an efficient impact blanking digging machine without material clamping in embodiment 6; 
           [0062]      FIG. 21  is a front view of an efficient impact blanking digging machine without material clamping in embodiment 7; 
           [0063]      FIG. 22  is a schematic diagram of an overlooking structure of an impact blanking digging mechanism in embodiment 7; 
           [0064]      FIG. 23  is a schematic diagram of a structure of an outer-layer material impact mechanism of an efficient impact blanking digging machine without material clamping in embodiment 7; 
           [0065]      FIG. 24  is a schematic diagram of a structure of an inner-layer material impact mechanism of an efficient impact blanking digging machine without material clamping in embodiment 7; 
           [0066]      FIG. 25  is a schematic, diagram of installation of impact teeth of an efficient impact blanking digging machine without material clamping in embodiment 7; 
           [0067]      FIG. 26  is a front view of an efficient impact blanking digging machine without material clamping in embodiment 8. 
       
    
    
       [0068]    In the figures,  1  represents a machine body,  2  represents a walking mechanism,  3  represents an impact blanking mechanism,  4  represents an outer-layer material impact mechanism,  4 . 1  represents an outer-layer material impact tooth,  4 . 2  represents an outer-layer material impact tooth frame,  4 . 2 . 1  represents a rear supporting seat,  4 . 2 . 2  represents an outer-layer material impact tooth supporting frame,  4 . 3  represents an outer-layer impact stroke component,  4 . 3 . 1  represents an outer-layer reciprocating guide rod,  5  represents an inner-layer material impact mechanism,  5 . 1  represents an inner-layer material impact tooth,  5 . 2  represents an inner-layer material impact tooth frame,  5 . 3  represents an inner-layer impact stroke component,  5 . 3 . 1  represents an inner-layer reciprocating guide rod,  5 . 4  represents an inner-layer tooth seat,  6  represents a pin,  7  represents an impact actuator,  8  represents a discharge hole,  9  represents a catching groove,  10  represents an impact tooth,  11  represents a front row of impact teeth,  12  represents a rear row of impact teeth,  13  represents a main outer-layer material impact tooth,  14  represents an outer-layer material top face cleaning tooth,  15  represents an outer-layer material bottom face cleaning tooth,  16  represents a main inner-layer material impact tooth,  17  represents an inner-layer material top face cleaning tooth,  18  represents an inner-layer material bottom face cleaning tooth,  19  represents a rear supporting seat material baffle,  20  represents a power box body,  21  represents a breakage-proof impact actuator structure,  21 . 1  represents a rotary breakage-proof impact actuator structure,  21 . 2  represents a separated breakage-proof impact actuator structure,  21 . 3  represents a buffering breakage-proof impact actuator structure,  22  represents a counterweight member,  23  represents a pin shaft,  24  represents a rotary disk and  25  represents an inner-layer material side face cleaning tooth. 
       DETAILED DESCRIPTION OF THE EMBODIMENTS 
     Embodiment 1 
       [0069]    As shown in  FIG. 1  to  FIG. 5 , an efficient impact blanking digging machine without material clamping used for implementing an efficient impact blanking digging method without material clamping, includes a machine body  1 , a walking mechanism  2 , an impact blanking mechanism  3  and the like, wherein the walking mechanism  2  is arranged at the front part and the rear part and the like of the machine body  1 , the impact blanking mechanism  3  is connected with the machine body  1 , the impact blanking mechanism  3  includes an outer-layer material impact mechanism  4  and an inner-layer material impact mechanism  5  and the like, the outer-layer material impact mechanism  4  and the inner-layer material impact mechanism  5  are arranged adjacently, the outer-layer material impact mechanism  4  includes outer-layer material impact teeth  4 . 1  and the like, the inner-layer material impact mechanism  5  includes inner-layer material impact teeth  5 . 1  and the like, the arrangement of the outer-layer material impact teeth  4 . 1  is conductive to blanking the outer-layer material of a material layer to be dug and is conductive to enabling the material blanked by the inner-layer material impact teeth  5 . 1  to flow out from the gaps of the outer-layer material impact teeth  4 . 1 , and the inner-layer material impact mechanism  5  and the outer-layer material impact mechanism  4  cooperate to realize impact blanking and discharging. 
         [0070]    The arrangement and/or shape of the outer-layer material impact teeth  4 . 1  is conductive to blanking the outer-layer material of the material layer to be dug and is conductive to enabling the material blanked by the inner-layer material impact teeth  5 . 1  to flow out from the gaps of the outer-layer material impact teeth  4 . 1 . 
         [0071]    The outer-layer material impact mechanism  4  includes an outer-layer material impact tooth frame  4 . 2  and the like, wherein the outer-layer material impact teeth  4 . 1  and the outer-layer material impact tooth frame  4 . 2  are movably connected and can also be integrated. 
         [0072]    The inner-layer material impact mechanism  5  includes an inner-layer material impact tooth frame  5 . 2  and the like, wherein the inner-layer material impact teeth  5 . 1  and the inner-layer material impact tooth frame  5 . 2  are movably connected and can also be integrated. 
         [0073]    The outer-layer material impact teeth  4 . 1  and the outer-layer material impact tooth frame  4 . 2  and/or the inner-layer material impact teeth  5 . 1  and the inner-layer material impact tooth frame  5 . 2  are connected by means of a pin  6  and can also be connected by means of a bolt, a catching groove, a pin shaft, an eccentric connecting element, an inserting hole, a jaw and/or a taper sleeve and the like. 
         [0074]    The outer-layer material impact mechanism  4  includes an outer-layer impact stroke component  4 . 3  and the like, and the outer-layer material impact teeth  4 . 1  and the outer-layer material impact tooth frame  4 . 2  are symmetrically arranged at the two ends of the outer-layer impact stroke component  4 . 3 . 
         [0075]    The outer-layer impact stroke component  4 . 3  and the outer-layer material impact tooth frame  4 . 2  are movably connected and can also be integrated. 
         [0076]    The inner-layer material impact mechanism  5  includes an inner-layer impact stroke component  5 . 3  and the like, and the inner-layer material impact teeth  5 . 1  and/or the inner-layer material impact tooth frame  5 . 2  are symmetrically arranged at the two ends of the inner-layer impact stroke component  5 . 3 . 
         [0077]    The inner-layer impact stroke component  5 . 3  and the inner-layer material impact tooth frame  5 . 2  are movably connected and can also be integrated. 
         [0078]    The outer-layer impact stroke component  4 . 3  includes outer-layer reciprocating guide rods  4 . 3 . 1  and the like, the outer-layer reciprocating guide rods  4 . 3 . 1  are symmetrically arranged on the outer-layer material impact tooth frame  4 . 2 , the outer-layer reciprocating guide rods  4 . 3 . 1  are symmetrically arranged to enlarge the correction force of the outer-layer material impact tooth frame  4 . 2  to maintain the reciprocating impact balance of the outer-layer material impact tooth frame  4 . 2 , in order to prevent the break-off of the outer-layer material impact tooth frame  4 . 2  and the impact actuator  7 , and the outer-layer reciprocating guide rods can also be asymmetrically arranged. 
         [0079]    The inner-layer impact stroke component  5 . 3  includes inner-layer reciprocating guide rods  5 . 3 . 1  and the like, the inner-layer reciprocating guide rods  5 . 3 . 1  are symmetrically arranged on the inner-layer material impact tooth frame  5 . 2 , the outer-layer reciprocating guide rods  4 . 3 . 1  are symmetrically arranged to enlarge the correction force of the inner-layer material impact tooth frame  5 . 2  and to maintain the reciprocating impact balance of the inner-layer material impact tooth frame  5 . 2 , in order to prevent the break-off of the inner-layer material impact tooth frame  5 . 2  and the impact actuator  7 , and the outer-layer reciprocating guide rods can also be asymmetrically arranged. 
         [0080]    The machine body  1  includes a hydraulic system and/or an electric system and/or a water mist spray system and the like. 
       Embodiment 2 
       [0081]    As shown in  FIG. 6  to  FIG. 9 , an efficient impact blanking digging machine without material clamping used for implementing an efficient impact blanking digging method without material clamping, includes a machine body  1 , a walking mechanism  2 , an impact blanking mechanism  3  and the like, wherein the walking mechanism  2  is arranged at the front part and the rear part and the like of the machine body  1 , the impact blanking mechanism  3  is connected with the machine body  1 , the impact blanking mechanism  3  includes an outer-layer material impact mechanism  4  and/or an inner-layer material impact mechanism  5  and the like, the outer-layer material impact mechanism  4  and the inner-layer material impact mechanism  5  are arranged adjacently, the outer-layer material impact mechanism  4  includes outer-layer material impact teeth  4 . 1  and the like, the inner-layer material impact mechanism  5  includes inner-layer material impact teeth  5 . 1  and the like, the arrangement of the outer-layer material impact teeth  4 . 1  is conductive to blanking the outer-layer material of a material layer to be dug and is conductive to enabling the material blanked by the inner-layer material impact teeth  5 . 1  to flow out from the gaps of the outer-layer material impact teeth  4 . 1 , the outer-layer material impact mechanism  4  is provided with a discharge hole  8  to enable the material blanked by the inner-layer material impact mechanism  5  to flow out from the discharge hole  8  of the outer-layer material impact mechanism  4 , and the inner-layer material impact mechanism  5  and the outer-layer material impact mechanism  4  cooperate to realize impact blanking and discharging. 
         [0082]    The outer-layer material impact tooth frame  4 . 2  includes a rear supporting seat  4 . 2 . 1 , an outer-layer material impact tooth supporting frame  4 . 2 . 2  and the like, the rear supporting seat  4 . 2 . 1  and the outer-layer material impact tooth supporting frame  4 . 2 . 2  form the discharge hole  8 , and the number of the discharge hole  8  is one, and can also be two or more and the like. 
         [0083]    The discharge hole  8  includes an arched discharge hole and the like, and can also be a square discharge hole and/or a cambered discharge hole and/or a trapezoidal discharge hole and/or a triangular discharge hole and/or a polygonal discharge hole and/or a deformed discharge hole and the like. 
         [0084]    The height of the rear supporting seat  4 . 2 . 1  is smaller than the height of the outer-layer material impact tooth supporting frame  4 . 2 . 2  and can also be equal to or larger than the height of the outer-layer material impact tooth supporting frame  4 . 2 . 2 . 
         [0085]    The rear supporting seat  4 . 2 . 1  and the outer-layer material impact tooth supporting frame  4 . 2 . 2  are integrated and can also be movably connected. 
         [0086]    The inner-layer material impact tooth frame  5 . 2  inclines towards the material wall for a certain angle, to help the inner-layer material impact teeth  5 . 1  to obliquely cut the material wall. 
         [0087]    The outer-layer material impact teeth  4 . 1  and the outer-layer material impact tooth frame  4 . 2  and/or the inner-layer material impact teeth  5 . 1  and the inner-layer material impact tooth frame  5 . 2  are connected by means of a catching groove  9  and can also be connected by means of a bolt, a pin, a pin shaft, an eccentric connecting element, an inserting hole, a jaw and/or a taper sleeve and the like. 
         [0088]    Others are the same as those in embodiment 1. 
       Embodiment 3 
       [0089]    As shown in  FIG. 10  to  FIG. 15 , an efficient impact blanking digging machine without material clamping used for implementing an efficient impact blanking digging method without material clamping, includes a machine body  1 , a walking mechanism  2 , an impact blanking mechanism  3  and the like, wherein the walking mechanism  2  is arranged at the front part or the rear part or the bottom or the like of the machine body  1 , the impact blanking mechanism  3  is connected with the machine body  1 , the impact blanking mechanism  3  includes an outer-layer material impact mechanism  4  and an inner-layer material impact mechanism  5  and the like, the outer-layer material impact mechanism  4  and the inner-layer material impact mechanism  5  are arranged adjacently, the outer-layer material impact mechanism  4  includes outer-layer material impact teeth  4 . 1  and the like, the inner-layer material impact mechanism  5  includes inner-layer material impact teeth  5 . 1  and the like, the arrangement of the outer-layer material impact teeth  4 . 1  is conductive to blanking the outer-layer material of a material layer to be dug and is conductive to enabling the material blanked by the inner-layer material impact teeth  5 . 1  to flow out from the gaps of the outer-layer material impact teeth  4 . 1  and/or the outer-layer material impact mechanism  4  is provided with a discharge hole  8  to enable the material blanked by the inner-layer material impact mechanism  5  to flow out from the discharge hole  8  of the outer-layer material impact mechanism  4  and the like, and the inner-layer material impact mechanism  5  and the outer-layer material impact mechanism  4  cooperate to realize impact blanking and discharging. 
         [0090]    The outer-layer material impact teeth  4 . 1  include more than a row of impact teeth  10  and the like, or one row of impact teeth can also be arranged. 
         [0091]    The inner-layer material impact teeth  5 . 1  include more than a row of impact teeth  10  and the like, or one row of impact teeth can also be arranged. 
         [0092]    The impact teeth  10  include a front row of impact teeth  11  and a rear row of impact teeth  12  and the like. 
         [0093]    The front row of impact teeth  11  and/or the rear row of impact teeth  12  include impact teeth  10  with non material clamping shapes, wherein the impact teeth  10  with non material clamping shapes are conductive to discharging the material blanked by the front row impact teeth  11  and/or the rear row impact teeth  12  and are conductive to continuous digging and discharging. 
         [0094]    The arrangement and shape of the front row of impact teeth  11  of the same outer-layer material impact tooth  4 . 1  are conductive to enabling the material shoveled off by the rear row of impact teeth  12  to flow out from the gaps of the front row of impact teeth  11 . 
         [0095]    The front row of impact teeth  11  and the rear row of impact teeth  12  form a length difference, the length difference is equal to an impact stroke or the length difference is larger than the impact stroke or the length difference is smaller than the impact stroke, the front row of impact teeth  11  and the rear row of impact teeth  12  are used for impacting a material wall into a step shape to break the structural length of the material wall, and during secondary impact, the front row of impact teeth  11  and the rear row of impact teeth  12  are used for blanking through a free surface formed by the step-shaped material wall, in order to reduce the impact resistance, reduce the granularity of the material block and facilitate the outflow of the material. 
         [0096]    The outer-layer material impact teeth  4 . 1  and the outer-layer material impact tooth frame  4 . 2  and/or the inner-layer material impact teeth  5 . 1  and the inner-layer material impact tooth frame  5 . 2  are connected by means of an inserting hole and can also be connected by means of a bolt, a catching groove, a pin, a pin shaft, an eccentric connecting element, a jaw and/or a taper sleeve and the like. 
         [0097]    The arrangement and/or shape of the inner-layer material impact teeth  5 . 1  is conductive to blanking and cleaning a material surface, so as to form the material surface into a necessary shape. 
         [0098]    The outer-layer material impact teeth  4 . 1  include a main outer-layer material impact tooth  13  and/or an outer-layer material top face cleaning tooth  14  and/or an outer-layer material bottom surface cleaning tooth  15  and the like. 
         [0099]    The outer-layer material impact teeth  4 . 1  include a main outer-layer material impact tooth  13  and/or an outer-layer material top face cleaning tooth  14  and/or an outer-layer material bottom surface cleaning tooth  15  and the like, and the main outer-layer material impact tooth  13  and/or the outer-layer material top face cleaning tooth  14  and/or the outer-layer material bottom surface cleaning tooth  15  and the like are used for cleaning the top face and/or the bottom surface of the material wall while blanking. The inner-layer material impact teeth  5 . 1  include a main inner-layer material impact tooth  16  and/or an inner-layer material top face cleaning tooth  17  and/or an inner-layer material bottom surface cleaning tooth  18  and/or an inner-layer material side face cleaning tooth  25  and the like. 
         [0100]    The inner-layer material impact teeth  5 . 1  include a main inner-layer material impact tooth  16  and/or an inner-layer material top face cleaning tooth  17  and/or an inner-layer material bottom surface cleaning tooth  18  and/or an inner-layer material side face cleaning tooth  25  and the like, and the main inner-layer material impact tooth  16  and/or the inner-layer material top face cleaning tooth  17  and/or the inner-layer material bottom surface cleaning tooth  18  and/or the inner-layer material side face cleaning tooth  25  and the like are used for cleaning the material wall while blanking to facilitate retaining and protecting, in order to ensure the successful pass of the machine body  1  to perform continuous digging. 
         [0101]    The inner-layer material impact tooth frame  5 . 2  inclines towards the material wall for a certain angle, to help the inner-layer material impact teeth  5 . 1  to obliquely cut the material wall. 
         [0102]    The outer-layer material impact mechanism  4  includes an outer-layer impact stroke component  4 . 3  and the like, and the outer-layer material impact teeth  4 . 1  and/or the outer-layer material impact tooth frame  4 . 2  are symmetrically arranged at the two ends of the outer-layer impact stroke component  4 . 3 . 
         [0103]    The outer-layer impact stroke component  4 . 3  and the outer-layer material impact tooth frame  4 . 2  are movably connected or are integrated. 
         [0104]    The inner-layer material impact mechanism  5  includes an inner-layer impact stroke component  5 . 3  and the like, and the inner-layer material impact teeth  5 . 1  and/or the inner-layer material impact tooth frame  5 . 2  are symmetrically arranged at the two ends of the inner-layer impact stroke component  5 . 3 . 
         [0105]    The inner-layer impact stroke component  5 . 3  and the inner-layer material impact tooth frame  5 . 2  are movably connected or are integrated. 
         [0106]    The outer-layer material impact tooth frame  4 . 2  includes a rear supporting seat  4 . 2 . 1 , an outer-layer material impact tooth supporting frame  4 . 2 . 2  and the like, the rear supporting seat  4 . 2 . 1  and the outer-layer material impact tooth supporting frame  4 . 2 . 2  form the discharge hole  8 , and the number of the discharge hole  8  is two, and can also be one or more. 
         [0107]    The discharge hole  8  includes an arched discharge hole and can also include a cambered discharge hole and/or a square discharge hole and/or a trapezoidal discharge hole and/or a triangular discharge hole and/or a polygonal discharge hole and/or a deformed discharge hole. 
         [0108]    The height of the rear supporting seat  4 . 2 . 1  is smaller than the height of the outer-layer material impact tooth supporting frame  4 . 2 . 2  and can also be equal to or larger than the height of the outer-layer material impact tooth supporting frame  4 . 2 . 2 . 
         [0109]    The rear supporting seat  4 . 2 . 1  and the outer-layer material impact tooth supporting frame  4 . 2 . 2  are movably connected or are integrated. 
         [0110]    The impact blanking mechanism  3  includes a power box body  20  and the like, the rear supporting seat is provided with a rear supporting seat material baffle  19  and the like, and the rear supporting seat material baffle  19  is arranged along the surface of the power box body  20  and relatively reciprocates along the surface of the power box body  20 . 
         [0111]    The impact blanking mechanism  3  includes a power box body  20  and the like, the inner-layer material impact mechanism  5  includes an inner-layer tooth seat  5 . 4  and the like, the inner-layer tooth seat  5 . 4  is provided with an inner-layer tooth seat material baffle  19  and the like, and the inner-layer tooth seat material baffle  19  is arranged along the surface of the power box body  20  and relatively reciprocates along the surface of the power box body  20 . 
         [0112]    The impact blanking mechanism  3  includes an impact actuator  7  and the like, a breakage-proof impact actuator structure  21  and the like are arranged between the impact actuator  7  and the outer-layer material impact tooth frame  4 . 2  and/or the inner-layer material impact tooth frame  5 . 2 , the breakage-proof impact actuator structure  21  includes a rotary breakage-proof impact actuator structure  21 . 1  and can also adopt a separated breakage-proof impact actuator structure or a buffering breakage-proof impact actuator structure and the like, the impact actuator  7  is used for driving the outer-layer material impact teeth  4 . 1  and/or the inner-layer material impact teeth  5 . 1  to impact, an impact counteraction force is applied on the breakage-proof impact actuator structure  21 , and the rotary breakage-proof impact actuator structure  21 . 1  rotates to prevent the impact counteraction force from breaking off and damaging the impact actuator  7 . 
         [0113]    The outer-layer impact stroke component  4 . 3  includes outer-layer reciprocating guide rods  4 . 3 . 1  and the like, the outer-layer reciprocating guide rods  4 . 3 . 1  are symmetrically arranged on the outer-layer material impact tooth frame  4 . 2 , the outer-layer reciprocating guide rods  4 . 3 . 1  are symmetrically arranged to enlarge the correction force of the outer-layer material impact tooth frame  4 . 2  to maintain the reciprocating impact balance of the outer-layer material impact tooth frame  4 . 2 , in order to prevent the break-off of the outer-layer material impact tooth frame  4 . 2  and the impact actuator  7 . 
         [0114]    The inner-layer impact stroke component  5 . 3  includes inner-layer reciprocating guide rods  5 . 3 . 1  and the like, the inner-layer reciprocating guide rods  5 . 3 . 1  are symmetrically arranged on the inner-layer material impact tooth frame  5 . 2 , the outer-layer reciprocating guide rods  4 . 3 . 1  are symmetrically arranged to enlarge the correction force of the inner-layer material impact tooth frame  5 . 2  and to maintain the reciprocating impact balance of the inner-layer material impact tooth frame  5 . 2 , in order to prevent the break-off of the inner-layer material impact tooth frame  5 . 2  and the impact actuator  7 . 
       Embodiment 4 
       [0115]    As shown in  FIG. 16  to  FIG. 17 , the outer-layer material impact mechanism  4  includes an outer-layer impact stroke component  4 . 3  and the like, the outer-layer material impact teeth  4 . 1  and/or the outer-layer material impact tooth frame  4 . 2  are arranged at one end of the outer-layer impact stroke component  4 . 3 , and a counterweight member  22  is arranged at the other end of the outer-layer impact stroke component  4 . 3 . 
         [0116]    The inner-layer material impact mechanism  5  includes an inner-layer impact stroke component  5 . 3  and the like, the inner-layer material impact teeth  5 . 1  and/or the inner-layer material impact tooth frame  5 . 2  and the like are arranged at one end of the inner-layer impact stroke component  5 . 3 , and a counterweight member  22  and the like are arranged at the other end of the inner-layer impact stroke component  5 . 3 . 
         [0117]    The outer-layer material impact tooth frame  4 . 2  includes a rear supporting seat  4 . 2 . 1 , an outer-layer material impact tooth supporting frame  4 . 2 . 2  and the like, the rear supporting seat  4 . 2 . 1  and the outer-layer material impact tooth supporting frame  4 . 2 . 2  form a discharge hole  8 , and the number of the discharge hole  8  is one, and can also be more. 
         [0118]    The discharge hole  8  includes a square discharge hole and the like, and can also be an arched discharge hole and/or a cambered discharge hole and/or a trapezoidal discharge hole and/or a triangular discharge hole and/or a polygonal discharge hole and/or a deformed discharge hole and the like. 
         [0119]    The height of the rear supporting seat  4 . 2 . 1  is equal to the height of the outer-layer material impact tooth supporting frame  4 . 2 . 2  and can also be larger than or smaller than the height of the outer-layer material impact tooth supporting frame  4 . 2 . 2 . 
         [0120]    The impact blanking mechanism  3  includes an impact actuator  7  and the like, a breakage-proof impact actuator structure  21  and the like are arranged between the impact actuator  7  and the outer-layer material impact tooth frame  4 . 2  and/or the inner-layer material impact tooth frame  5 . 2 , the breakage-proof impact actuator structure includes a separated breakage-proof impact actuator structure  21 . 2  and the like or a rotary breakage-proof impact actuator structure or a buffering breakage-proof impact actuator structure and the like, the impact actuator  7  is used for driving the outer-layer material impact teeth  4 . 1  and/or the inner-layer material impact teeth  5 . 1  to impact, an impact counteraction force is applied on the breakage-proof impact actuator structure  21 , and the separated breakage-proof impact actuator structure  21 . 2  separately isolates to prevent the impact counteraction force from breaking off and damaging the impact actuator  7 . 
         [0121]    The outer-layer impact stroke component  4 . 3  includes outer-layer reciprocating guide rods  4 . 3 . 1  and the like, the outer-layer reciprocating guide rods  4 . 3 . 1  are asymmetrically arranged on the outer-layer material impact tooth frame  4 . 2  to maintain the reciprocating impact balance of the outer-layer material impact tooth frame  4 . 2 , in order to prevent the break-off of the outer-layer material impact tooth frame  4 . 2  and the impact actuator  7 . 
         [0122]    The inner-layer impact stroke component  5 . 3  includes inner-layer reciprocating guide rods  5 . 3 . 1  and the like, the inner-layer reciprocating guide rods  5 . 3 . 1  are asymmetrically arranged on the inner-layer material impact tooth frame  5 . 2  to maintain the reciprocating impact balance of the inner-layer material impact tooth frame  5 . 2 , in order to prevent the break-off of the inner-layer material impact tooth frame  5 . 2  and the impact actuator  7 . 
         [0123]    Others are the same as those in embodiment 3. 
       Embodiment 5 
       [0124]    As shown in  FIG. 18 , the outer-layer material impact tooth frame  4 . 2  includes a rear supporting seat  4 . 2 . 1 , an outer-layer material impact tooth supporting frame  4 . 2 . 2  and the like, the rear supporting seat  4 . 2 . 1  and the outer-layer material impact tooth supporting frame  4 . 2 . 2  form a discharge hole  8 , and the number of the discharge hole  8  is two, and can also be one or more. 
         [0125]    The discharge hole  8  includes a trapezoidal discharge hole and the like, and can also be an arched discharge hole and/or a cambered discharge hole and/or a square discharge hole and/or a triangular discharge hole and/or a polygonal discharge hole and/or a deformed discharge hole and the like. 
         [0126]    The height of the rear supporting seat  4 . 2 . 1  is smaller than the height of the outer-layer material impact tooth supporting frame  4 . 2 . 2  and can also be larger than or equal to the height of the outer-layer material impact tooth supporting frame  4 . 2 . 2 . 
         [0127]    The impact blanking mechanism  3  includes an impact actuator  7  and the like, a breakage-proof impact actuator structure and the like are arranged between the impact actuator  7  and the outer-layer material impact tooth frame  4 . 2  and/or the inner-layer material impact tooth frame  5 . 2 , the breakage-proof impact actuator structure  21  includes a buffering breakage-proof impact actuator structure  21 . 3  and the like or a rotary breakage-proof impact actuator structure or a separated breakage-proof impact actuator structure and the like, the impact actuator  7  is used for driving the outer-layer material impact teeth  4 . 1  and/or the inner-layer material impact teeth  5 . 1  to impact, an impact counteraction force is applied on the breakage-proof impact actuator structure  21 , and the buffering breakage-proof impact actuator structure  21 . 3  buffers to prevent the impact counteraction force from breaking off and damaging the impact actuator  7 . 
         [0128]    Others are the same as those in embodiment 3. 
       Embodiment 6 
       [0129]    As shown in  FIG. 19  to  FIG. 20 , the outer-layer material impact mechanism  4  includes an outer-layer impact stroke component  4 . 3  and the like, the outer-layer material impact teeth  4 . 1  and/or the outer-layer material impact tooth frame  4 . 2  and the like are asymmetrically arranged at the two ends of the outer-layer impact stroke component  4 . 3 . 
         [0130]    The outer-layer material impact mechanism  4  includes an outer-layer impact stroke component  4 . 3  and the like, the outer-layer material impact teeth  4 . 1  and the like are arranged at one end of the outer-layer impact stroke component  4 . 3 , and the outer-layer material impact tooth frame  4 . 2  and the like are arranged at the other end of the outer-layer impact stroke component  4 . 3 . 
         [0131]    The outer-layer impact stroke component  4 . 3  and the outer-layer material impact tooth frame  4 . 2  are movably connected or are integrated. 
         [0132]    The inner-layer material impact mechanism  5  includes an inner-layer impact stroke component  5 . 3  and the like, the inner-layer material impact teeth  5 . 1  and/or the inner-layer material impact tooth frame  5 . 2  and the like are asymmetrically arranged at the two ends of the inner-layer impact stroke component  5 . 3 . 
         [0133]    The inner-layer material impact mechanism  5  includes an inner-layer impact stroke component  5 . 3  and the like, the inner-layer material impact teeth  5 . 1  and the like are arranged at one end of the inner-layer impact stroke component  5 . 3 , and the inner-layer material impact tooth frame  5 . 2  and the like are arranged at the other end. 
         [0134]    The inner-layer impact stroke component  5 . 3  and the inner-layer material impact tooth frame  5 . 2  are movably connected or are integrated. 
         [0135]    The outer-layer material impact tooth frame  4 . 2  includes a rear supporting seat  4 . 2 . 1 , an outer-layer material impact tooth supporting frame  4 . 2 . 2  and the like, the rear supporting seat  4 . 2 . 1  and the outer-layer material impact tooth supporting frame  4 . 2 . 2  form a discharge hole  8 , and the number of the discharge holes  8  is one or more. 
         [0136]    The discharge hole  8  includes a triangular discharge hole and the like, and can also be an arched discharge hole and/or a cambered discharge hole and/or a square discharge hole and/or a polygonal discharge hole and/or a deformed discharge hole and the like. The height of the rear supporting seat  4 . 2 . 1  is smaller than the height of the outer-layer material impact tooth supporting frame  4 . 2 . 2  and can also be equal to or larger than the height of the outer-layer material impact tooth supporting frame  4 . 2 . 2 . 
         [0137]    The rear supporting seat and the outer-layer material impact tooth supporting frame  4 . 2 . 2  are movably connected or are integrated. 
         [0138]    Others are the same as those in embodiment 3. 
       Embodiment 7 
       [0139]    As shown in  FIG. 21  to  FIG. 25 , an efficient impact blanking digging machine without material clamping used for implementing an efficient impact blanking digging method without material clamping, includes a machine body  1 , a walking mechanism  2 , an impact blanking mechanism  3  and the like, wherein the walking mechanism  2  is arranged at the lower part of the machine body  1 , the impact blanking mechanism  3  is connected with the machine body  1 , the impact blanking mechanism  3  includes an outer-layer material impact mechanism  4  and an inner-layer material impact mechanism  5  and the like, the outer-layer material impact mechanism  4  and the inner-layer material impact mechanism  5  are arranged adjacently, the outer-layer material impact mechanism  4  includes outer-layer material impact teeth  4 . 1  and the like, the inner-layer material impact mechanism  5  includes inner-layer material impact teeth  5 . 1  and the like, the arrangement of the outer-layer material impact teeth  4 . 1  is conductive to blanking the outer-layer material of a material layer to be dug and is conductive to enabling the material blanked by the inner-layer material impact teeth  5 . 1  to flow out from the gaps of the outer-layer material impact teeth  4 . 1  and/or the outer-layer material impact mechanism  4  is provided with a discharge hole to enable the material blanked by the inner-layer material impact mechanism  5  to flow out from the discharge hole of the outer-layer material impact mechanism  4 , and the inner-layer material impact mechanism  5  and the outer-layer material impact mechanism  4  cooperate to realize impact blanking and discharging. 
         [0140]    The arrangement and/or shape of the outer-layer material impact teeth  4 . 1  is conductive to blanking the outer-layer material of the material layer to be dug and is conductive to enabling the material blanked by the inner-layer material impact teeth  5 . 1  to flow out from the gaps of the outer-layer material impact teeth  4 . 1 . 
         [0141]    The outer-layer material impact mechanism  4  includes an outer-layer material impact tooth frame  4 . 2  and the like, and the outer-layer material impact teeth  4 . 1  and the outer-layer material impact tooth frame  4 . 2  are movably connected or are integrated. The inner-layer material impact mechanism  5  includes an inner-layer material impact tooth frame  5 . 2  and the like, and the inner-layer material impact teeth  5 . 1  and the inner-layer material impact tooth frame  5 . 2  are movably connected or are integrated. The outer-layer material impact teeth  4 . 1  include more than a row of impact teeth  10  and the like, or one row of impact teeth  10  can also be arranged. 
         [0142]    The inner-layer material impact teeth  5 . 1  include more than a row of impact teeth  10 , or one row of impact teeth  10  can also be arranged. 
         [0143]    The impact teeth  10  include a front row of impact teeth  11  and a rear row of impact teeth  12  and the like. 
         [0144]    The front row of impact teeth  11  and/or the rear row of impact teeth  12  include impact teeth  10  with non material clamping shapes, wherein the impact teeth  10  with non material clamping shapes are conductive to discharging the material blanked by the front row impact teeth  11  and/or the rear row impact teeth  12  and the like and are conductive to continuous digging and discharging. 
         [0145]    The arrangement and shape of the front row of impact teeth  11  of the same outer-layer material impact tooth  4 . 1  is conductive to enabling the material shoveled off by the rear row of impact teeth  12  to flow out from the gaps of the front row of impact teeth  11 . 
         [0146]    The front row of impact teeth  11  and the rear row of impact teeth  12  form a length difference, the length difference is equal to an impact stroke or the length difference is larger than the impact stroke or the length difference is smaller than the impact stroke, the front row of impact teeth  11  and the rear row of impact teeth  12  are used for impacting a material wall into a step shape to break the structural length of the material wall, and during secondary impact, the front row of impact teeth  11  and the rear row of impact teeth  12  are used for blanking through a free surface formed by the step-shaped material wall, in order to reduce the impact resistance, reduce the granularity of the material block and facilitate the outflow of the material. 
         [0147]    The outer-layer material impact teeth  4 . 1  and the outer-layer material impact tooth frame  4 . 2  and/or the inner-layer material impact teeth  5 . 1  and the inner-layer material impact tooth frame  5 . 2  and the like are connected by means of a pin shaft  23  and can also be connected by means of a bolt, a catching groove, a pin, an eccentric connecting element, a jaw and/or a taper sleeve and the like. 
         [0148]    The outer-layer material impact teeth  4 . 1  include a main outer-layer material impact tooth  13  and the like, and can also include an outer-layer material top face cleaning tooth  14  and/or an outer-layer material bottom surface cleaning tooth  15  and the like. The inner-layer material impact teeth  5 . 1  include a main inner-layer material impact tooth  16  and the like, and can also include an inner-layer material top face cleaning tooth  17  and/or an inner-layer material bottom surface cleaning tooth  18  and/or an inner-layer material side face cleaning tooth  25  and the like. 
         [0149]    The main inner-layer material impact tooth  16  and/or the inner-layer material top face cleaning tooth  17  and/or the inner-layer material bottom surface cleaning tooth  18  and/or the inner-layer material side face cleaning tooth  25  and the like are used for cleaning the material wall while blanking to facilitate retaining and protecting, in order to ensure the successful pass of the machine body  1  to perform continuous digging. 
         [0150]    The outer-layer material impact mechanism  4  includes an outer-layer impact stroke component  4 . 3  and the like, the outer-layer material impact teeth  4 . 1  and/or the outer-layer material impact tooth frame  4 . 2  and the like are asymmetrically arranged at the two ends of the outer-layer impact stroke component  4 . 3 , the outer-layer material impact teeth  4 . 1  and/or the outer-layer material impact tooth frame  4 . 2  and the like are arranged at one end of the outer-layer impact stroke component  4 . 3 , and the outer-layer impact stroke component  4 . 3  and the outer-layer material impact tooth frame  4 . 2  are movably connected or are integrated. 
         [0151]    The inner-layer material impact mechanism  5  includes an inner-layer impact stroke component  5 . 3  and the like, the inner-layer material impact teeth  5 . 1  and/or the inner-layer material impact tooth frame  5 . 2  and the like are asymmetrically arranged at the two ends of the inner-layer impact stroke component  5 . 3 , the inner-layer material impact teeth  5 . 1  and/or the inner-layer material impact tooth frame  5 . 2  and the like are arranged at one end of the inner-layer impact stroke component  5 . 3 , and the inner-layer impact stroke component  5 . 3  and the inner-layer material impact tooth frame  5 . 2  are movably connected or are integrated. 
         [0152]    The outer-layer material impact tooth frame  4 . 2  includes a rear supporting seat  4 . 2 . 1 , an outer-layer material impact tooth supporting frame  4 . 2 . 2  and the like, the rear supporting seat  4 . 2 . 1  and the outer-layer material impact tooth supporting frame  4 . 2 . 2  form a discharge hole  8 , and the number of the discharge hole  8  is one or more. 
         [0153]    The discharge hole  8  includes a cambered discharge hole and the like, and can also include an arched discharge hole and/or a square discharge hole and/or a trapezoidal discharge hole and/or a triangular discharge hole and/or a polygonal discharge hole and/or a deformed discharge hole and the like. 
         [0154]    The height of the rear supporting seat  4 . 2 . 1  is larger than the height of the outer-layer material impact tooth supporting frame  4 . 2 . 2  and can also be smaller than or equal to the height of the outer-layer material impact tooth supporting frame  4 . 2 . 2 . 
         [0155]    The rear supporting seat  4 . 2 . 1  and the outer-layer material impact tooth supporting frame  4 . 2 . 2  are movably connected or are integrated. 
         [0156]    The impact blanking mechanism  3  includes a power box body  20  and the like, the rear supporting seat is provided with a rear supporting seat material baffle  19  and the like, and the rear supporting seat material baffle  19  is arranged along the surface of the power box body  20  and relatively reciprocates along the surface of the power box body  20 . 
         [0157]    The impact blanking mechanism  3  includes a power box body  20  and the like, the inner-layer material impact mechanism  5  includes an inner-layer tooth seat  5 . 4  and the like, the inner-layer tooth seat  5 . 4  is provided with an inner-layer tooth seat material baffle  19  and the like, and the inner-layer tooth seat material baffle  19  is arranged along the surface of the power box body  20  and relatively reciprocates along the surface of the power box body  20 . 
         [0158]    The impact blanking mechanism  3  includes an impact actuator  7  and the like, a breakage-proof impact actuator structure  21  and the like are arranged between the impact actuator  7  and the outer-layer material impact tooth frame  4 . 2  and/or the inner-layer material impact tooth frame  5 . 2 , the breakage-proof impact actuator structure  21  includes a buffering breakage-proof impact actuator structure  21 . 3  and the like or a rotary breakage-proof impact actuator structure or a separated breakage-proof impact actuator structure and the like, the impact actuator  7  is used for driving the outer-layer material impact teeth  4 . 1  and/or the inner-layer material impact teeth  5 . 1  to impact, an impact counteraction force is applied on the breakage-proof impact actuator structure, and the buffering breakage-proof impact actuator structure buffers to prevent the impact counteraction force from breaking off and damaging the impact actuator  7 . 
         [0159]    The outer-layer impact stroke component  4 . 3  includes outer-layer reciprocating guide rods  4 . 3 . 1  and the like, the outer-layer reciprocating guide rods  4 . 3 . 1  are symmetrically arranged on the outer-layer material impact tooth frame  4 . 2 , the outer-layer reciprocating guide rods  4 . 3 . 1  are symmetrically arranged to enlarge the correction force of the outer-layer material impact tooth frame  4 . 2  to maintain the reciprocating impact balance of the outer-layer material impact tooth frame  4 . 2 , in order to prevent the break-off of the outer-layer material impact tooth frame  4 . 2  and the impact actuator  7 . 
         [0160]    The inner-layer impact stroke component  5 . 3  includes inner-layer reciprocating guide rods  5 . 3 . 1  and the like, the inner-layer reciprocating guide rods  5 . 3 . 1  are symmetrically arranged on the inner-layer material impact tooth frame  5 . 2 , the outer-layer reciprocating guide rods  4 . 3 . 1  are symmetrically arranged to enlarge the correction force of the inner-layer material impact tooth frame  5 . 2  to maintain the reciprocating impact balance of the inner-layer material impact tooth frame  5 . 2 , in order to prevent the break-off of the inner-layer material impact tooth frame  5 . 2  and the impact actuator  7 . 
         [0161]    The machine body  1  includes a hydraulic system and/or an electric system and/or a water mist spray system and the like. 
         [0162]    The machine body  1  includes a rotary disk and the like, the rotary disk is arranged at the upper part of the machine body  1 , the impact blanking mechanism  3  is arranged on the rotary disk, the rotary disk drives the impact blanking mechanism  3  to rotate to perform impact blanking in multiple directions, the rotary disk can also be arranged at the lower part of the machine body  1 , the impact blanking mechanism  3  is arranged on the machine body  1 , the rotary disk drives the machine body  1  to rotate, and the machine body  1  drives the impact blanking mechanism  3  to rotate to perform impact blanking in multiple directions. 
       Embodiment 8 
       [0163]    As shown in  FIG. 26 , the machine body  1  includes a rotary disk and the like, the rotary disk is arranged at the lower part of the machine body  1 , the impact blanking mechanism  3  is arranged on the machine body  1 , the rotary disk drives the machine body  1  to rotate, and the machine body  1  drives the impact blanking mechanism  3  to rotate to perform impact blanking in multiple directions. 
         [0164]    Others are the same as those in embodiment 7.