Abstract:
An apparatus for amplifying rotating force of a wind power generator includes a blade rotated by wind power, a central rotating shaft rotated by the rotation of the blade, upper and lower horizontal rotating units spread upwards or downwards when the blade rotates, upper and lower fastening plates, a vertical rotating unit continuously rotating the upper horizontal rotating unit and doubling the rotating speed of the upper horizontal rotating unit by repulsive force of a magnetic member, a horizontal rotating shaft rotating the vertical rotating unit as the blade rotates, a shaft conversion unit rotating the horizontal rotating shaft by the rotation of the central rotating shaft, a horizontal-rotating-shaft support supporting the vertical rotating unit and the horizontal rotating shaft, a frame unit stably holding the apparatus and protecting the apparatus from external force, and a bearing.

Description:
CROSS REFERENCE 
       [0001]    This application claims priority of Korean Patent Application No. 10-2016-0058098, filed on May 12, 2016, in the Korean Intellectual Property Office, which is hereby incorporated by reference in its entirety. 
     
    
     BACKGROUND 
       [0002]    The present invention relates to an apparatus for amplifying rotating force of a wind power generator, and more particularly, to an apparatus for amplifying rotating force of a wind power generator, which doubles the rotating speed of a blade by ascending air current and rotational inertia, thus enhancing power generating efficiency and simultaneously facilitating the continuous rotation of the blade even when the blade rotates at low speed due to a lack of wind power. 
         [0003]    In general, a typical power generating method for producing electricity may include thermal power generation in which mechanical energy generated by the combustion of fossil fuel is converted into electric energy, thus producing electric power, and nuclear power generation in which water is heated using energy generated by fission chain reaction to produce vapor and then a turbine of a generator is rotated by the vapor, thus producing electric power. However, such a power generating method is problematic in that huge construction cost is required to build power generating facilities, a quantity of harmful substances, such as radiation, radioactive waste or exhaust gas that are harmful for environment and human bodies in a power generating process, may be discharged, and serious environmental destruction may be caused when an accident occurs in power generating facilities. Thus, research into the power generating method of utilizing natural energy, such as wind power, tidal power, water power or solar heat, as an energy source is actively conducted, because the natural energy does not cause pollution unlike thermal power- or nuclear power-generation and there is no possibility that the natural energy is depleted. Here, wind power generation in which wind power energy is converted into electric energy using a blade that may be rotated by wind, thus producing electric power is simple in structure or installation of power generating facilities and is easy to operate and manage the power generating facilities due to unmanned or automatic operation. For this reason, recently, the adoption of the wind power generation is rapidly increased. 
         [0004]    For example, a wind power generator has been proposed in Korean Appl. No. 10-2008-0083107. According to the cited document, a blade rotated by wind power is fastened via a spoke to an outer surface of a rotor that is inserted into a rotating shaft. Thus, even when the blade is rotated at low speed because the wind power acting on the blade is insufficient, the wind power generator may generate electromotive force by electromagnetic induction action between the rotor and a stator. 
         [0005]    However, the above-described invention is configured such that the rotor and the stator that may generate electromotive force by electromagnetic induction action between them are opened to an outside. Thus, this is problematic in that power generating equipment may be damaged by external force acting on the power generating equipment or by water that may penetrate into the power generating equipment in the case of rain during a power generating process, and it is impossible to produce electricity of constant output when uniform wind power does not act on the blade fastened to the outer surface of the rotor, so that the wind power should be converted into constant output using a separate electric power converter. 
         [0006]    In order to solve the problems, the present invention is intended to provide an apparatus for amplifying rotating force of a wind power generator, in which an upper horizontal rotating unit and a lower horizontal rotating unit that are inserted into the same rotating shaft as a blade rotatable by wind power and are provided under the blade are rotated by the rotation of the blade, so that the rotating speed of the blade is increased by ascending air current produced in the upper horizontal rotating unit and rotational inertia increased by the lower horizontal rotating unit, thus allowing the wind power generator to efficiently generate power, and magnetic members are inserted into ends of the upper horizontal rotating unit and a vertical rotating unit that is rotatable by the rotation of the upper horizontal rotating unit such that the same poles are opposite to each other, so that the blade is continuously rotated by repulsive force between the magnetic members even when the blade rotates at low speed due to a lack of wind power acting on the blade, thus facilitating continuous power generation, and simultaneously the rotating speed of the blade may be doubled when the blade rotates at high speed. 
       SUMMARY OF THE INVENTION 
       [0007]    Accordingly, the present invention has been made keeping in mind the above problems occurring in the related art, and an aspect of the present invention is directed to an apparatus for amplifying rotating force of a wind power generator, in which an upper horizontal rotating unit capable of generating ascending air current as the upper horizontal rotating unit is rotated by the rotation of a blade by wind power and a lower horizontal rotating unit capable of increasing rotational inertia may be inserted into the same rotating shaft as the blade, the blade may be continuously rotated even when the blade rotates at low speed due to a lack of wind power acting on the blade, and simultaneously the rotating speed of the blade may be doubled when the blade rotates at high speed. 
         [0008]    In order to accomplish the object, the present invention provides an apparatus for amplifying rotating force of a wind power generator, including a central rotating shaft provided to pass through a multilayered rack-like frame unit to be rotated by wind power; a blade coupled to an uppermost end of the central rotating shaft; and upper and lower horizontal rotating units fastened to upper and lower fastening plates that are installed about the central rotating shaft to produce ascending air current or increase rotational inertia, by spreading the horizontal rotating units upwards or downwards when the blade is rotated. 
         [0009]    Further, the present invention provides an apparatus for amplifying rotating force of a wind power generator, including a vertical rotating unit rotated vertically in conjunction with a central rotating shaft so as to increase rotating force of an upper horizontal rotating unit; a vertical rotating unit coupled via a horizontal rotating shaft to continuously rotate the upper horizontal rotating unit by repulsive force between magnetic members fastened to a side of a vertical wing of the vertical rotating unit and simultaneously double rotating speed of the upper horizontal rotating unit; and a bearing provided to smoothly rotate the central rotating shaft and the horizontal rotating shaft by wind power acting on the blade. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0010]    The above and other aspects, features and advantages of certain exemplary embodiments of the present invention will be more apparent from the following description taken in conjunction with the accompanying drawings, in which: 
           [0011]      FIGS. 1 and 2  are views illustrating an apparatus for amplifying rotating force of a wind power generator; 
           [0012]      FIGS. 3 and 4  are exploded perspective views illustrating the apparatus for amplifying the rotating force of the wind power generator; 
           [0013]      FIGS. 5A and 5B  are a view and a detailed view illustrating a horizontal rotating shaft and a shaft conversion unit of the apparatus for amplifying the rotating force of the wind power generator; 
           [0014]      FIG. 6  is an exploded perspective view illustrating an upper horizontal rotating unit of the apparatus for amplifying the rotating force of the wind power generator; 
           [0015]      FIG. 7  is an exploded perspective view illustrating a vertical rotating unit of the apparatus for amplifying the rotating force of the wind power generator; 
           [0016]      FIGS. 8A and 8B  are views illustrating upper and lower horizontal rotating units of the apparatus for amplifying the rotating force of the wind power generator, when they are closed and opened; 
           [0017]      FIG. 9  is a view illustrating the vertical rotating unit of the apparatus for amplifying the rotating force of the wind power generator, when the vertical rotating unit is closed; and 
           [0018]      FIGS. 10 and 11  are a view and a detailed view illustrating the apparatus for amplifying the rotating force of the wind power generator. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0019]    Exemplary embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 
         [0020]    Unless defined otherwise, all the terms used in this specification including technical and scientific terms have the same meanings as would be generally understood by those skilled in the related art. The terms defined in generally used dictionaries should be construed as having the same meanings as would be construed in the context of the related art, and unless clearly defined otherwise in this specification, should not be construed as having idealistic or overly formal meanings. 
         [0021]    While the invention will be described in conjunction with exemplary embodiments, it will be understood that the present disclosure is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments, but also various alternatives, modification, and equivalents thereof. 
         [0022]    According to the present invention, an apparatus for amplifying rotating force of a wind power generator includes a multilayered rack-like frame unit  1100  having layered horizontal frames  1110 , vertical frames  1120  provided between the horizontal frames to define space, and a side frame  1130  provided on a side of each horizontal frame. 
         [0023]    A central rotating shaft  200  is rotatably provided to pass through the multilayered rack-like horizontal frames of the frame unit. 
         [0024]    A blade  100  is coupled to an uppermost end of the central rotating shaft to cause the central rotating shaft to be rotated by wind power. 
         [0025]    An upper fastening plate  400  is provided on an upper surface of an uppermost horizontal frame of the frame unit around the central rotating shaft. 
         [0026]    A lower fastening plate  600  is provided on a lower surface of an associated horizontal frame of the frame unit around the central rotating shaft. 
         [0027]    At least one upper horizontal rotating unit  300  is coupled to the upper fastening plate  400  installed under the blade  100  around the central rotating shaft, and is opened downwards by centrifugal force, when the central rotating shaft is rotated by the blade. 
         [0028]    At least one lower horizontal rotating unit  500  is coupled to the lower fastening plate  600  to be opened upwards by centrifugal force, when the central rotating shaft is rotated. 
         [0029]    A vertical rotating unit  700  includes a horizontal rotating shaft  800  that is coupled to pass through a horizontal-rotating-shaft support  1000  mounted on an upper surface of the side frame to be vertically rotated in conjunction with the central rotating shaft and thereby increase rotating force of the upper horizontal rotating unit, and a vertical rotating wing  720  provided on a central rotating part  710  that is coupled to the horizontal rotating shaft via a horizontal-rotating-shaft passing hole  711 . 
         [0030]    Further, a shaft conversion unit  900  is provided to convert a horizontal rotating motion of the central rotating shaft into a vertical rotating motion using the rotating force of the central rotating shaft so as to rotate the vertical rotating unit  700 . 
         [0031]    To be more specific, the blade  100  may various shapes and numbers depending on a topographical location where the wind power generator is installed and a power generating capacity and then may be coupled to the upper end of the central rotating shaft  200 , as shown in  FIG. 1 . Preferably, the blade is formed to be curved in one of opposite rotating directions to be easily rotated by wind power. 
         [0032]    As shown in  FIG. 6 , the upper horizontal rotating unit  300  includes an upper shaft holder  310  that is coupled to an upper surface of the upper fastening plate  400  around the central rotating shaft  200 , an upper rotating wing  320  that has on an upper surface thereof a curved downward depressed part  321  to produce ascending air current when the upper horizontal rotating unit  300  is rotated by rotation of the blade  100 , a horizontal-rotating-unit magnetic member  330  that is coupled to a magnetic-member inserting hole  322  that is depressed in a side of an end of the upper rotating wing  320 ; and an upper rotating shaft  340  that is fastened at one side thereof to the upper shaft holder  310  by a coupling pin and is coupled at the other side thereof the upper rotating wing  320 , so that the upper rotating wing  320  is opened downwards to be parallel to the horizontal frame by centrifugal force as the blade  100  rotates about the upper shaft holder  310 . 
         [0033]    The lower horizontal rotating unit  500  includes a lower shaft holder  510  that is coupled to a lower surface of the lower fastening plate  600  around the central rotating shaft  200 , a lower rotating wing  520  that has on a lower surface thereof a curved upward depressed part  521  to increase rotational inertia when the lower horizontal rotating unit  500  is rotated by rotation of the blade  100 , a lower rotating shaft  530  that is fastened at one side thereof to the lower shaft holder  510  by a coupling pin and is coupled at the other side thereof the lower rotating wing  520 , so that the lower rotating wing is opened upwards to be parallel to the horizontal frame by centrifugal force as the blade  100  rotates about the lower shaft holder  510 . 
         [0034]    As shown in  FIG. 5A , the shaft conversion unit  900  includes a belt pulley  930  that is coupled to a lower end of the central rotating shaft  200 , a vertical conversion shaft  910  that is provided to pass through the side frame to be parallel to the central rotating shaft, a belt pulley that is provided on a lower end of the vertical conversion shaft to correspond to rotation of the belt pulley of the central rotating shaft, a rotary belt  940  that connects both the belt pulleys to each other and transmits rotating force of the central rotating shaft, and a shaft conversion gear  920  that is formed on an upper end of the vertical conversion shaft  910 . The vertical rotating unit coupled to the horizontal rotating shaft  800  performs vertical movement in conjunction with the central rotating shaft. The horizontal rotating shaft has on an end thereof a horizontal-rotating-shaft change gear  820  to engage with the shaft conversion gear and thereby to convert horizontal rotation into vertical rotating motion, and is installed to pass through the horizontal-rotating-shaft support  1000  and. 
         [0035]    Further, as shown in  FIG. 5B , the shaft conversion unit includes a belt pulley  930  that is provided on a lower end of the central rotating shaft, a rotary gear belt  950  that is provided between the belt pulley  930  and a horizontal-rotating-shaft rotary gear to transmit rotating force of the central rotating shaft to the horizontal-rotating-shaft rotary gear  830  that is formed on an outer surface of an end of the horizontal rotating shaft passing through the horizontal-rotating-shaft support  1000 , with teeth being formed on a side thereof, and a belt rotating gear  970  and a belt rotating part  980  that are rotatably coupled to two rotary-gear-belt supports  960 , respectively, by a fastening pin between the belt pulley and the horizontal-rotating-shaft rotary gear to smoothly transmit rotating force of the rotary gear belt. The rotating force of the central rotating shaft transmitted by the rotary gear belt is transmitted to the horizontal rotating shaft, so that the vertical rotating unit coupled to the horizontal rotating shaft performs vertical movement in conjunction with the central rotating shaft. 
         [0036]    The horizontal-rotating-shaft support  1000  includes a plate-shaped support plate  1010  that is fastened to an upper surface of the horizontal frame of the frame unit  1100 , and has a vertical-conversion-shaft passing hole  1011  perforated on a side of an upper surface thereof such that the vertical conversion shaft  910  or the rotary gear belt of the shaft conversion unit  900  passes therethrough to transmit power, and a protruding support  1020  that protrudes upwards from an upper surface of the support plate  1010  to adjust a vertical position of the vertical rotating unit  700  and has a horizontal-rotating-shaft inserting hole  1021  that is penetrated into a center of an upper portion of the support plate to allow the horizontal rotating shaft  800  to be inserted therein. That is, the horizontal rotating shaft is rotatably inserted into the horizontal-rotating-shaft inserting hole of the protruding support to convert the horizontal rotating motion into the vertical rotating motion by the shaft conversion unit. 
         [0037]    As shown in  FIG. 7 , the vertical rotating unit  700  includes a central rotating part  710  that has a horizontal-rotating-shaft passing hole  711  penetrated at a center thereof to allow the vertical rotating unit  700  to be inserted into the horizontal rotating shaft  800 , at least one vertical rotating wing  720  having on a side thereof a magnetic-member coupler  721  through which a vertical-rotating-unit magnetic member  730  is coupled thereto, to continuously rotate the upper horizontal rotating unit( 300  even when the blade  100  rotates at low speed due to a lack of wind power and simultaneously to double rotating speed of the upper horizontal rotating unit  300  when the blade  100  rotates at high speed, thus allowing the rotating force to be transmitted to the central rotating shaft  200 ; and a position adjusting shaft  740  connecting the vertical rotating wing  720  with the central rotating part such that a position of the vertical rotating wing  720  corresponds to a position of the upper rotating wing  320  provided on the upper horizontal rotating unit  300 . 
         [0038]    The central rotating part and the position adjusting shaft  740  are coupled with a hinge-part rotating shaft  760  formed on the central rotating part, via an “U”-shaped hinge part  750 . As shown in  FIG. 9 , the position adjusting shaft  740  is coupled, via a fastening pin, to an “U”-shaped groove to be rotatable leftwards and rightwards, and the other side of the hinge part is coupled, via a fastening pin, to an “U”-shaped groove formed on an end of the hinge-part rotating shaft to be rotatable upwards and downwards. Therefore, the vertical rotating wing is manufactured to be movable upwards, downwards, leftwards and rightwards. Further, a foldable limiting part  770  is provided between neighboring hinge-part rotating shafts  760  to limit a moving radius of the position adjusting shaft  740 . Thus, the position adjusting shaft  740  is folded within a predetermined radius by repulsive force between the vertical-rotating-unit magnetic member  730  fastened to a side of the vertical rotating wing  720  and the horizontal-rotating-unit magnetic member  330  coupled to a side of an end of the upper rotating wing  320 , thus preventing the position adjusting shaft  740  or the vertical rotating wing  720  from being deformed or damaged. Preferably, when the vertical-rotating-unit magnetic member  730  is fastened to the magnetic-member coupling part  721 , they are fastened to each other such that the same poles of the vertical-rotating-unit magnetic member and the horizontal-rotating-unit magnetic member  330  provided on the upper rotating wing  320  face each other. 
         [0039]    Further, in order to allow the central rotating shaft and the horizontal rotating shaft to be smoothly rotated, bearings  1200  may be provided between the central rotating shaft, the upper fastening plate, the lower fastening plate, the frame unit and the horizontal rotating shaft and the horizontal rotation support. 
         [0040]    According to an embodiment, the blade  100  provided on an upper end of the apparatus for amplifying the rotating force of the wind power generator rotates in a direction by wind power, thus causing the central rotating shaft  200  to be rotated in one direction. As the central rotating shaft  200  rotates, the upper rotating wing  320  and the upper rotating shaft  340  and the lower rotating wing  520  and the lower rotating shaft  530 , which are coupled to the upper surfaces of the upper fastening plate  400  and the lower fastening plate  600  around the central rotating shaft  200  by the upper shaft holder  310  and the lower shaft holder  510 , may be rotatably spread downwards or upwards by centrifugal force about the upper shaft holder  310  and the lower shaft holder  510 . At this time, ascending air current is produced by the downward depressed part  321  that is curvedly depressed on the upper surface of the upper rotating wing  320  that is rotatably spread downwards, as shown in  FIG. 10 , and then the ascending air current is transmitted to a lower portion of the blade  100 , thus increasing the rotating speed of the blade  100 . Meanwhile, rotational inertia is increased by the upward depressed part  521  that is curvedly depressed on the lower surface of the lower rotating wing  520  that is rotatably spread upwards, thus increasing the rotating force of the central rotating shaft  200  and enhancing power generating efficiency. 
         [0041]    When the central rotating shaft  200  is rotated by the rotation of the blade  100 , as shown in  FIGS. 5A and 5B , the horizontal rotating shaft  800  and the vertical rotating unit  700  inserted into the horizontal rotating shaft  800  may also rotate in response to the rotation of the central rotating shaft  200  by the shaft conversion unit  900 . In this case, as shown in the detailed view of  FIG. 11 , the rotating speed of the upper rotating wing  320  may be doubled by the repulsive force between the vertical-rotating-unit magnetic member  730  coupled to the vertical rotating wing  720  of the vertical rotating unit  700  and the horizontal-rotating-unit magnetic member  330  fastened to the upper rotating wing  320  of the upper horizontal rotating unit  300 , which are arranged such that their same poles face each other. Even when the blade  100  rotates at low speed due to a lack of wind power acting on the blade  100 , the upper rotating wing  320  may be continuously rotated by the repulsive force between the vertical-rotating-unit magnetic member  730  and the horizontal-rotating-unit magnetic member  330 , thus allowing power to be continuously generated. Further, when the upper rotating wing  320  meets the vertical rotating wing  720 , as shown in  FIG. 9 , the position adjusting shaft  740  is folded within a predetermined radius by the hinge part  750  and the hinge-part rotating shaft  760 , thus preventing the vertical rotating wing  720  or the position adjusting shaft  740  from being damaged by the repulsive force between the horizontal-rotating-unit magnetic member  330  and the vertical-rotating-unit magnetic member  730 . The foldable limiting part  770  protruding outwards from the outer surface of the central rotating part  710  of the vertical rotating unit  700  prevents the position adjusting shaft  740  from being excessively folded, thus preventing the repulsive force between the horizontal-rotating-unit magnetic member  330  and the vertical-rotating-unit magnetic member  730  from being reduced. 
         [0042]    As described above, the present invention provide an apparatus for amplifying rotating force of a wind power generator, in which an upper horizontal rotating unit and a lower horizontal rotating unit that are inserted into the same rotating shaft as a blade rotatable by wind power and are provided under the blade are rotated by the rotation of the blade, so that ascending air current produced in the upper horizontal rotating unit is transmitted to the blade and thereby the rotating speed of the blade is increased and rotational inertia increased by the lower horizontal rotating unit causes the rotating force of the rotating shaft to be increased, thus allowing the wind power generator to efficiently generate power. 
         [0043]    Further, the present invention provide an apparatus for amplifying rotating force of a wind power generator, in which magnetic members are inserted into ends of an upper horizontal rotating unit and a vertical rotating unit that is rotatable by the rotation of the upper horizontal rotating unit such that the same poles are opposite to each other, so that a blade is continuously rotated by repulsive force between the magnetic members even when the blade rotates at low speed due to a lack of wind power acting on the blade, thus enabling continuous power generation, and simultaneously the rotating speed of the blade may be doubled when the blade rotates at high speed. 
         [0044]    While the invention has been shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. 
         [0045]    Therefore, the scope of the invention is defined not by the detailed description of the invention but by the appended claims, and all differences within the scope will be construed as being included in the present invention.