Patent Description:
In general, a vibration ripper refers to heavy equipment used in various construction sites such as new construction and crushing of roads, bridges, buildings, etc., and exerts superior power compared to manpower, thereby improving work efficiency.

In such a vibration ripper, a driving means such as an endless track or a wheel is provided at a lower portion of a vehicle body so as to enable self-driving, a boom capable of refraction, rotation, and lifting operation is mounted on the front of the vehicle body so as to function like a human arm, and various tool equipment required according to the workability are mounted on an end of the boom.

Recently, an example of an excavator for increasing the breaking force by adding a vibration function to the end of the boom has been proposed.

As the example, the Republic of <CIT> "Vibration Ripper" is disclosed.

As shown in <FIG>, when looking at a conventional vibration ripper, the conventional vibration ripper includes a main body <NUM>' having a vibration space portion <NUM>' and a coupling portion <NUM>' for connecting a boom <NUM>' or an arm of a heavy equipment on an upper side thereof, a vibrating unit <NUM>' located in the vibration space portion and installed with a vibrator <NUM>', and a plurality of support means <NUM>' supported by both sides of a housing <NUM>' of the vibrating unit <NUM>' and the corresponding main body <NUM>' to vibratingly support the vibrating unit <NUM>' with respect to the main body <NUM>'.

In addition, the conventional vibration ripper includes a vibration ripper blade <NUM>' installed in the housing <NUM>' to extend downward, and a vibroisolating means <NUM>' installed in the upper main body <NUM>' of the vibration space portion <NUM>' and dispersing vibration when the housing <NUM>' and the main body <NUM>' collide due to raising of the vibrating unit <NUM>'.

Therefore, the related art is that the vibrating unit vibrates when the vibrator is operated, and accordingly, vibration force is generated in the vibration ripper.

However, in the related art, a driving motor is directly installed on the vibrator <NUM>', and thus the size of the driving motor should also be increased when the scale of the main body <NUM>' is increased, so that there is a problem that the overall size of the main body is increased and the capacity of the drive motor is also increased.

In addition, there is a disadvantage that it is difficult to prevent all vibrations that occur up and down, front and back, and left and right when the vibrator vibrates.

Conventional vibration rippers are also described in <CIT>, <CIT>, <CIT>, <CIT> and <CIT>.

An object of the present invention is designed to solve the above-described problems and is to provide a vibration ripper having a link structure with an improved vibration isolating function that prevents a vibration body installed inside an outer body from shaking up and down, front and back, and left and right during vibration.

Another object of the present invention is to provide a vibration ripper having a link structure with an improved vibration isolating function capable of more efficiently dispersing vibration generated when the vibration is generated by a lifting operation of a vibration body installed inside an outer body.

In order to achieve the object, the present invention provides a vibration ripper with the features of claim <NUM>.

The first vibroisolating body includes a first outer housing fixed across the front and back of a lower left end of the vibration body, a first inner housing located inside the first outer housing, a first shaft inserted through the first inner housing, and a first elastic member installed between the first outer housing and the first inner housing.

The first elastic member is strongly coupled to the first outer housing and the first inner housing by a fixing key.

The second vibroisolating body includes a second outer housing that is fixed across the front and back of a lower right end of the outer body, a second inner housing located inside the second outer housing, a second shaft inserted through the second inner housing, and a second elastic member installed between the second outer housing and the second inner housing.

The first vibroisolating body and the second vibroisolating body are provided only on one side with the link device interposed therebetween.

The vibration ripper further includes an upper vibroisolating body between the outer body and the vibration body on an upper end of the vibration ripper, and the upper vibroisolating body is installed in pairs in the front and back with the vibration body interposed therebetween.

The upper vibroisolating body includes an inner rim fixed to a fixed plate integrally installed on an upper left side or right side of the vibration body, an outer rim fixed to the outer body, and a vibroisolating member fixedly installed between the inner rim and the outer rim.

A third vibroisolating body is installed between an upper surface of the vibration body and the outer body, a fourth vibroisolating body is installed between a right side of the vibration body and the outer body, and the third vibroisolating body and the fourth vibroisolating body are formed by an air cushion method of filling with gas.

One side of the fourth vibroisolating body is fixed to the vibration body and the other side thereof is fixed to the outer body.

The fourth vibroisolating body includes a cushion part that may be filled with gas to provide a cushion.

The fourth vibroisolating body includes a case in which the cushion part is built for mounting between the vibration body and the outer body.

A first fixing piece for coupling to the vibration body is formed on one side of the case, and a second fixing piece for coupling to the outer body is formed on the other side thereof.

According to the present invention, there is an effect that it is possible to prevent a vibration body installed inside an outer body from shaking up and down, front and back, and left and right when vibrating.

In addition, according to the present invention, there is an effect that it is possible to more effectively disperse the vibration generated when the vibration is generated by lifting operation of the vibration body installed inside the outer body.

Hereinafter, preferred embodiments of the present invention will be described in detail based on the accompanying drawings.

Prior to this, terms to be described later are defined in consideration of functions in the present invention, which clearly indicates that they should be interpreted in terms of concepts consistent with the technological spirit of the present invention and commonly recognized or commonly recognized in the art.

In addition, when it is determined that a detailed description of a known function or configuration related to the present invention may obscure the subject matter of the present invention, the detailed description will be omitted.

Here, the accompanying drawings are exaggerated or simplified for a convenience and clarity of description and understanding of the structure and operation of the technology, and each component does not exactly match the actual size.

The vibration ripper having a link structure with an improved vibration isolating function according to the present invention may be used where rock is crushed using vibration.

<FIG> is a schematic diagram of a vibration ripper having a link structure with an improved vibration isolating function according to the present invention.

For convenience of description, the left and right directions are indicated as "left and right directions" around a shape of a vibration ripper <NUM> shown in <FIG>, and the up and down directions of the vibration ripper are indicated as "up and down directions", and the front and back directions of the ground are indicated as "front-to-back direction".

In the present invention, the vibration ripper <NUM> which is a heavy equipment tool is mounted on an excavator or the like to use, and includes an outer body <NUM> having an accommodating portion inside and a vibration body <NUM> that is built in the outer body <NUM> and has a mounting bracket <NUM> formed thereunder so that a tool equipment may be attached and detached.

In the present invention, a tooth <NUM> is installed on the mounting bracket <NUM>, and the tooth <NUM> is capable of crushing an object such as rock by vibration of the vibration body.

The vibration body <NUM> is a box body composed of a plurality of support plates so as to have a space therein, which is inserted inside the outer body <NUM>, and the vibration body <NUM> includes a first eccentric member (not shown), a second eccentric member (not shown), and a reducer (not shown) therein. In this case, the first eccentric member, the second eccentric member, and the reducer are meshed with gears to operate in cooperation with each other.

The vibration body is a configuration that is conventionally mounted and used, and a specific description thereof will not be given.

In addition, as shown in <FIG>, a first vibroisolating body <NUM> may be installed at a lower left end of the vibration body <NUM>.

The first vibroisolating body <NUM> includes a first outer housing <NUM> fixed across the front and back of a lower left end of the vibration body <NUM>, a first inner housing <NUM> located inside the first outer housing <NUM>, a first shaft <NUM> inserted through the first inner housing <NUM>, and a first elastic member <NUM> installed between the first outer housing <NUM> and the first inner housing <NUM>.

At this time, the first elastic member <NUM> may be strongly coupled to the first outer housing <NUM> and the first inner housing <NUM> by a fixing key <NUM> as shown in <FIG>, and may be coupled by an adhesive means such as a separate adhesive. Therefore, the movement of the compressive force or tensile force generated by the first elastic member <NUM> may be restricted by the first outer housing <NUM> and the first inner housing <NUM>.

The first outer housing <NUM> and the first inner housing <NUM> are made of a rigid material, and the first elastic member <NUM> may be a circular elastic rubber or a hollow tube-shaped elastic material.

The first shaft <NUM> is installed through the vibration body <NUM>. That is, the first shaft <NUM> may be inserted into and fixed to the first inner housing <NUM> of the first vibroisolating body <NUM>, which may have a form in which the first vibroisolating body <NUM> surrounds the outer circumferential surface of the first shaft.

In addition, the first outer housing <NUM> of the first vibroisolating body <NUM> may be supported by being coupled to the vibration body <NUM> by welding or the like. Further, the first outer housing <NUM> and the first inner housing <NUM> may be made of a rigid body such as steel, and may be made of materials other than steel as long as they are rigid.

<FIG> is an enlarged view of a link device in the link structure with the improved vibration isolating function according to the present invention.

Referring to <FIG>, a link device <NUM> according to the present invention may absorb vibration and impact by connecting the outer body <NUM> and the first vibroisolating body <NUM> of the vibration body <NUM>.

The link device <NUM> includes a pair of parallel connection members <NUM> in a state of being spaced apart from each other. A coupling hole <NUM> for coupling the first vibroisolating body <NUM> is formed on a left side of the connection member <NUM>, and a second vibroisolating body <NUM> coupled to the outer body <NUM> is integrally installed on a right side of the connection member <NUM>.

That is, the left side of the pair of connection members <NUM> is open so that a lower portion of the vibration body <NUM> provided with the first vibroisolating body <NUM> may be inserted, and the right side thereof may be coupled to a lower right portion of the outer body <NUM> while being integrally provided with the second vibroisolating body <NUM>. At this time, referring to <FIG>, both ends of the first shaft <NUM> of the first vibroisolating body <NUM> may be coupled to the coupling hole <NUM>, and finally may be fixed to the connection member <NUM> by a fixing means such as a bolt <NUM>.

In addition, the second vibroisolating body <NUM> includes a second outer housing <NUM> that is fixed across the front and back of a lower right end of the outer body <NUM>, a second inner housing <NUM> located inside the second outer housing <NUM>, a second shaft <NUM> inserted through the second inner housing <NUM>, and a second elastic member <NUM> installed between the second outer housing <NUM> and the second inner housing <NUM>.

At this time, the second elastic member <NUM> may be strongly coupled to the second outer housing <NUM> and the second inner housing <NUM> by the fixing key, and may be combined by an adhesive means such as a separate adhesive. Therefore, the movement of the compressive force or tensile force generated by the second elastic member <NUM> may be restricted by the second outer housing <NUM> and the second inner housing <NUM>.

The second outer housing <NUM> and the second inner housing <NUM> are made of a rigid material, and the second elastic member <NUM> may be a circular elastic rubber or a hollow tube-shaped elastic material.

The second shaft <NUM> may be inserted into and fixed to the second inner housing <NUM> of the second vibroisolating body <NUM>, which may have a form in which the second vibroisolating body <NUM> surrounds the outer circumferential surface of the second shaft <NUM>.

In addition, the second outer housing <NUM> of the second vibroisolating body <NUM> may be supported by being coupled to the link device <NUM> and the outer body <NUM> by welding or the like. Further, the second outer housing <NUM> and the second inner housing <NUM> may be made of a rigid body such as steel, and may be made of materials other than steel as long as they are rigid.

At this time, referring to <FIG>, both ends of the second shaft <NUM> of the second vibroisolating body <NUM> may be fixed to the outer body <NUM> by fixing means such as a bolt <NUM>.

As described above, the vibration ripper <NUM> according to the present invention has a structure in which the first vibroisolating body <NUM> and the second vibroisolating body <NUM> are connected to the vibration body <NUM> and the outer body <NUM> by the link device <NUM>, and thus it is possible to more effectively and efficiently absorb the vibration generated by the vibration body <NUM> or the impact transmitted by the tooth <NUM>, and to absorb all vibrations and impacts of up and down, front and back, and left and right.

In particular, a load in the left-right, front-back, and up-down directions generated in the vibration body <NUM> due to the coupling structure as described above, the first vibroisolating body <NUM> and the link device <NUM>, the link device <NUM> and the second vibroisolating body <NUM>, and all of these intermechanical relationship may be fixed in the <NUM>-degree direction to perform vibroisolating.

In addition, the first vibroisolating body <NUM> and the second vibroisolating body <NUM> may be provided on only one side with the link device <NUM> interposed therebetween, or may be provided on both sides of the link device <NUM>. In an embodiment not comprised by the present invention the elastic member may not be provided in the first vibroisolating body or the second vibroisolating body, or may be provided to both.

An upper vibroisolating body <NUM> may be further installed between the outer body <NUM> and the vibration body <NUM> on an upper end of the vibration ripper <NUM> according to the present invention.

The upper vibroisolating body <NUM> may be installed in pairs in the front and back with the vibration body <NUM> interposed therebetween, and the upper vibroisolating body <NUM> may be installed on a left or right side of the vibration body <NUM>, respectively, or may be installed on both the left and right sides.

In addition, the upper vibroisolating body <NUM> is fixed to a fixing plate <NUM> integrally installed on an upper left side or right side of the vibration body <NUM>.

The upper vibroisolating body <NUM> includes an inner rim <NUM> fixed to the fixing plate <NUM>, an outer rim <NUM> fixed to the outer body <NUM>, and a vibroisolating member <NUM> fixedly installed between the inner rim <NUM> and the outer rim <NUM>.

A central axis <NUM> is inserted into the center of the inner rim <NUM>, the vibroisolating member <NUM>, and the outer rim <NUM>.

All of the outer body <NUM>, the upper vibroisolating body <NUM>, and the fixing plate <NUM> of the vibration body <NUM> may be firmly fixed by coupling means such as bolts.

Therefore, it is possible to absorb vibration or impact of the vibration ripper <NUM> secondarily by the upper vibroisolating body <NUM>.

In addition, a gas type third vibroisolating body <NUM> is installed in a space between an upper surface of the vibration body <NUM> and the outer body <NUM>, wherein the third vibroisolating body <NUM> may be composed of an air cushion system in which gas is filled.

Meanwhile, referring to <FIG>, in order to further maximize the vibroisolating effect, a fourth vibroisolating body <NUM> may be further installed at at least one location on the left and right sides of the heavy equipment tool. The fourth vibroisolating body <NUM> may be formed by an air cushion method of filling with gas. The fourth vibroisolating body <NUM> performs secondary vibroisolating so as to minimize vibration in the left and right directions of the vibration body <NUM>.

At this time, the fourth vibroisolating body <NUM> may be installed in both a lower left end and upper right end of the vibration body <NUM>, or may be installed in only one of the lower left end and upper right end of the vibration body <NUM>.

The fourth vibroisolating body <NUM> has one side fixed to the vibration body <NUM> and the other side fixed to the outer body <NUM>.

That is, the fourth vibroisolating body <NUM> includes a cushion part <NUM> that may be filled with gas to provide a cushion, and a case <NUM> in which the cushion part <NUM> is built for mounting between the vibration body <NUM> and the outer body <NUM>.

A first fixing piece <NUM> for coupling to the vibration body <NUM> is formed on one side of the case <NUM>, and a second fixing piece <NUM> for coupling to the outer body <NUM> is formed on the other side.

Therefore, the first fixing piece <NUM> and the second fixing piece <NUM> may be coupled to the vibration body <NUM> and the outer body <NUM> respectively by separate fixing means (for example, bolts).

Hereinafter, an operation of the vibration ripper having a link structure with an improved vibration isolating function according to the present invention will be described in detail.

When an operator operates the vibration body <NUM> of the tool in order to crush an object such as rock, the upper and lower vibrations of the vibration body <NUM> are transmitted to the tooth <NUM> to crush the object.

At this time, the vibration generated from the vibration body <NUM> and the impact generated when the object is crushed are transmitted to the first vibroisolating body <NUM> through the vibration body <NUM>, and are transmitted to the second vibroisolating body <NUM> through the link device <NUM> connected to the first vibroisolating body <NUM>.

First, vibration and impact transmitted to the first vibroisolating body <NUM> are absorbed by the first elastic member <NUM>, and the first elastic member <NUM> may absorb impact by restricting its movements in the up and down, left and right, and front and back directions by the first outer housing <NUM> and the first inner housing <NUM>. In particular, the first vibroisolating body <NUM> is composed of a first outer housing made of a rigid body, a first elastic member made of rubber or urethane, and a first inner housing made of a rigid body so as to be strongly joined to each other, and accordingly, when a force acts on the inside, the first elastic member <NUM> of the first vibroisolating body <NUM> simultaneously generates compression and tension in the direction of the force, thereby minimizing the displacement of the first elastic member <NUM>.

In addition, vibration and impact may also be absorbed through the link device <NUM> connected to the first vibroisolating body <NUM>. That is, the link device <NUM> may absorb up and down and left and right vibrations by the interaction of the connection member <NUM> connecting the first and second vibroisolating bodies <NUM> and <NUM>.

In addition, similarly to the operation of the components of the first vibroisolating body <NUM>, the vibration and impact transmitted to the second vibroisolating body <NUM> are absorbed by the action of the second outer housing <NUM>, the second inner housing <NUM>, and the second elastic member <NUM>, and the second shaft <NUM> is fixedly installed on the outer body <NUM> and its movement in the front-rear direction is restricted, and thus the second vibroisolating body <NUM> may absorb the impact.

Finally, the upper vibroisolating body <NUM> is installed over the outer body <NUM> and the vibration body <NUM>, and may perform secondary vibroisolating so as to minimize the vibration and impact of the vibration body or the outer body.

Claim 1:
A vibration ripper (<NUM>) having a link structure with an improved vibration isolating function, which includes an outer body (<NUM>) having an accommodating portion inside and a vibration body (<NUM>) that is built in the outer body and has a mounting bracket (<NUM>) formed thereunder so that a tool equipment can be attached and detached,
characterized in that
the vibration ripper (<NUM>) comprising:
a first vibroisolating body (<NUM>) installed across the vibration body (<NUM>) at a lower left portion of the vibration body (<NUM>); and
a link device (<NUM>) connecting the outer body (<NUM>) and the first vibroisolating body (<NUM>) in order to absorb vibration,
wherein the link device (<NUM>) includes a pair of parallel connection members (<NUM>) in a state of being spaced apart from each other,
a coupling hole for coupling the first vibroisolating body (<NUM>) is formed on a left side of the connection member (<NUM>), and a second vibroisolating body (<NUM>) coupled to the outer body (<NUM>) is integrally installed on a right side of the connection member (<NUM>),
wherein the left side of the pair of connection members (<NUM>) is open so that a lower portion of the vibration body (<NUM>) provided with the first vibroisolating body (<NUM>) is inserted, and the right side thereof is coupled to a lower right portion of the outer body (<NUM>) while being integrally provided with the second vibroisolating body (<NUM>).