JP2013127292A - Transmission - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transmission capable of converting power with a simple structure without using fluid.SOLUTION: In a transmission 10, a hollow cylindrical housing 11, an input rotating shaft 19 which vertically penetrates an upper surface wall 13 of the housing and is rotatably arranged, and an output rotating shaft 21 which vertically penetrates a bottom wall 14 and is rotatably arranged are rotatably engaged with one another at upper and lower ends. Three pieces of circular boards 23A to 23C are coaxially fixed to the input rotating shaft 19. Output conversion members 31 are attached to the input/output rotating shafts 19, 21. Four pieces of output circular boards 37A to 37C arranged between a lower-side outer plate 32 and an upper-side outer plate 45 at equal intervals are integrally arranged at the output conversion members 31. Twelve pieces of input-side magnets 26 are fit to the input circular boards 23A to 23C at equal intervals along the whole circumference in the circumferential direction with N,S polarities aligned. The output-side magnet 43 is fit to the output circular board 37A with N,S polarities aligned, and arranged so as to oppose the input-side magnet 26.

Description

  The present invention relates to a transmission used for power conversion of an automobile, an elevator, a belt conveyor and the like.

  Conventionally, as this type of transmission, a torque converter using a dynamic action of fluid is known. For example, as shown in Patent Document 1, the torque converter includes a pump impeller, a turbine runner, and a stator as fluid elements, and includes a one-way clutch that supports the stator on a fixed shaft. When the pump impeller is driven by the engine, the internal fluid is pushed outward along the pump impeller by the rotation of the pump, flows into the turbine runner, gives torque to the turbine runner, and rotates the stator. A circulating main flow is formed which again flows into the pump impeller through the air. However, this torque converter utilizes fluid circulation and has a structure for sealing the fluid, so that the structure is complicated and expensive.

Japanese Patent Laid-Open No. 5-71610

  An object of the present invention is to provide a transmission capable of smoothly converting power with a simple structure that does not use a fluid.

  In order to achieve the above object, the structural features of the present invention include a hollow cylindrical housing formed of a magnetic non-permeable material and sealed at both ends with a top wall and a bottom wall, and a top wall and a bottom wall. Either one of them is penetrated in the axial direction at the center, and the input rotary shaft is supported in the wall portion so as to be rotatable and immovable in the axial direction, and the other of the top wall and the bottom wall is axially formed at the center An output rotary shaft that penetrates and is supported by the wall portion so as to be rotatable and non-movable in the axial direction, and whose end portions in the housing are rotatably engaged with the end portions of the input rotary shaft; An annular thick plate that is coaxially fixed to the input rotary shaft at a plurality of positions spaced apart in the axial direction of the input rotary shaft, and has a plurality of input sides with the same polarity along the entire circumference in the circumferential direction A plurality of input circular disk portions in which magnets are arranged in an annular shape; A first outer plate portion coaxially fixed to the output rotation shaft in the hood and a first outer plate portion in the housing facing the first outer plate portion with a plurality of input annular disk portions, and coaxial to the input rotation shaft And a second outer plate portion that is rotatably disposed, and is disposed so as to overlap each other on the opposing surfaces of the first outer plate portion and the second outer plate portion, and is coaxial between the input annular disk portions. A plurality of annular thick plates having a diameter larger than that of the input annular disk portion arranged on the inner circumferential side of the annular circular plate, the polarities are aligned along the entire circumference in the circumferential direction, and the plurality of output side magnets face the input side magnets. A plurality of output circular disk portions disposed in a row, and a connecting ring portion that is fitted along the entire outer peripheral edge between the output circular disk portions to connect the output circular disk portions; The outer plate portion, the second outer plate portion, the output ring disc portion and the connecting ring portion are fixed and integrated with each other, and the input ring disc portion and the output ring disc portion are slightly separated from each other. An output conversion member that is a gap, and the input rotation shaft is connected to the rotation shaft of the external rotation device and rotated by the external rotation device, and the output rotation shaft is connected to the rotation drive shaft of the external drive device. That is, the rotation drive shaft is rotated by the rotation of the output rotation shaft.

  In the present invention configured as described above, the input rotating shaft connected to the rotating shaft of the external rotating device is rotated by the rotation of the external rotating device such as an engine, and the input ring is coaxially fixed to the input rotating shaft. The board rotates as a unit. Since the input side magnet supported by the input circular disk part and the output side magnet arranged opposite to and supported by the output circular disk part are arranged with their polarities aligned, Magnetic repulsive forces are generated between each other. Therefore, due to the rotation of the input side magnet accompanying the rotation of the input circular disk part, the output side magnet also tries to rotate in the same direction as the input side magnet due to the magnetic repulsive force with the input side magnet. Here, since the plurality of input annular disk parts supporting the input side magnets and the plurality of output circular disk parts supporting the output side magnets are alternately arranged with a gap therebetween, the magnetic repulsion acting between both of them is provided. The power is greatly increased. Due to this magnetic repulsive force, the output conversion member including a plurality of output circular disk portions to which the output side magnets are fixed integrally starts to rotate.

  The output conversion member functions as a mass with a large weight including the first and second outer plate parts, the plurality of output circular disk parts, and the connecting ring part, and a large centrifugal force is generated when the output conversion member rotates. Therefore, the output conversion member can generate a rotational force that efficiently converts the rotational force of the external rotating device. Therefore, the output rotation shaft to which the output conversion member is fixed can transmit a large rotational force of the output conversion member to the rotation drive shaft of the external drive device. As a result, in the present invention, the transmission allows smooth power conversion of the rotational force of the external rotating device to the external driving device.

  Further, according to the present invention, since the housing is made of a magnetic non-permeable material such as stainless steel or aluminum, a large magnetic force between the input side magnet and the output side magnet is blocked so as not to leak to the outside of the housing. As a result, in the present invention, the large magnetic force of the input side magnet and the output side magnet is effectively utilized for conversion of the rotational force to the output conversion member by the input circular disk part, and the external magnetic force leaks to the outside. There is no risk of adversely affecting the electrical equipment. Further, according to the present invention, the transmission is provided at a low cost because it is composed of simple and inexpensive members such as a housing, an input rotary shaft, an input annular disk portion, an output conversion member, and an output rotary shaft. .

  Further, in the present invention, the input side magnets are arranged in a plurality of locations in the radial direction of the input annular disk part, and the output side magnets correspond to the input side magnets in the radial direction of the output circular disk part. You may divide and arrange | position in several places. As a result, when the outer diameter of the input disk portion and the output conversion member is increased in order to increase the output of the transmission, the input side magnet and the output side magnet may be arranged separately in a plurality of locations in the radial direction. Therefore, the shape of the magnet can be made relatively small. Although it is difficult to manufacture a magnet having a large shape and the price is expensive, the use of a substantially small magnet facilitates the manufacture of the magnet and makes it possible to reduce the price of the magnet. As a result, according to the present invention, the price of the large transmission can be made relatively inexpensive.

  In the present invention, the rotational force of the external rotating device is caused by the action of the magnetic repulsive force of the input side magnet provided in the input ring disc portion of the transmission and the output side magnet provided in the output ring disc portion. Since it is converted into the rotation of the heavy output conversion member through the rotation of the part and transmitted to the external drive device via the output rotation shaft, smooth power conversion with a simple structure becomes possible.

It is explanatory drawing which shows schematic structure of the power transmission mechanism including the transmission which is one Example of this invention. It is sectional drawing in the axial position which shows the transmission which is Example 1 in detail. FIG. 3 is a partially broken plan view in the III-III line direction of FIG. 2. FIG. 4 is a partially broken plan view in the IV-IV line direction of FIG. 2. It is a partially broken top view of the VV line direction of FIG. It is a top view which shows roughly the upper and lower annular thin plate 24a which comprises an input annular disk part. It is a top view which shows roughly the intermediate | middle annular thin plate 24b which comprises an input annular disk part. It is sectional drawing which shows the connection part of the circumferential direction of an input side magnet and an input annular disk part, and the top view which shows an input side magnet, the end elevation of a circumferential direction edge part, the arrow view of arrow C direction. It is a top view which shows roughly the upper and lower annular thin plate 38a which comprises an output annular disk part. It is a top view which shows roughly the intermediate | middle annular thin plate 38b which comprises an output annular disk part. It is sectional drawing in the axial position which shows the transmission which is Example 2 in detail. It is a partially broken top view of the XII-XII line direction of FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing a schematic configuration of a power transmission mechanism including a transmission according to a first embodiment, FIG. 2 is a longitudinal sectional view of the transmission, and FIGS. It is shown by a partial cutaway plan view. The assembly base 1 used in the power transmission mechanism is a three-dimensional shape formed by a rectangular bottom plate 2 placed on the floor G, a bar erected at its four corners, and a bar connecting the upper ends thereof. The frame part 3, the inner support plate 4 fixed horizontally at the intermediate position in the height direction in the frame part 3, and the outer support fixed horizontally outwardly slightly above the inner support plate 4 on the side of the frame part 3 A plate 5 and an outer bottom plate 6 connected to the side of the bottom plate 2 opposite to the outer support plate 5 are provided. A transmission 10 is placed on the inner support plate 4, an electric motor 7 is placed on the outer support plate 5, and a power generator 8 is placed on the outer bottom plate 6. A conversion device 9 including a gear mechanism is mounted on the bottom plate 2 with its axis oriented in the vertical direction, and the rotation of the output rotation shaft extending vertically of the transmission 10 extends horizontally to the power generation device 8. The rotation is converted into the rotation of the rotation drive shaft.

  The transmission 10 has a hollow cylindrical housing 11. The housing 11 is made of stainless steel, which is a magnetically impermeable material. The upper wall 13 and the bottom wall 14, which are circular thick plates, are fitted to the upper and lower ends of the cylindrical tube portion 12, respectively. The upper and lower end surfaces are sealed with bolts 12a. The top wall 13 and the bottom wall 14 have center holes 13a and 14a, and upper and lower radial bearings 16 and 17 are fitted and fixed in the center holes 13a and 14a. The top wall 13 is provided with a shallow annular mounting groove 13b coaxially in the vicinity of the center hole 13a on the bottom surface. The bottom wall 14 is provided with a shallow annular mounting groove 14b coaxially in the vicinity of the center hole 14a on the upper surface. An annular ring made of a thin metal plate surrounds the mounting groove 14b radially outward of the mounting groove 14b. The oil stop portion 14c is erected.

  The input rotary shaft 19 is inserted into the center hole 16a of the upper radial bearing 16 and extends vertically through the upper surface wall 13, and cannot be moved in the axial direction by the c-rings 16b on both upper and lower ends of the upper radial bearing 16. It is fixed to. The input rotary shaft 19 has a large-diameter base portion 19a, and small-diameter portions 19b and 19c extending coaxially in the axial direction on the upper end side protruding from the housing 11 of the base portion 19a and the lower end side in the housing 11, respectively. The base portion 19a has a vertically long fixing hole 19d penetrating in the radial direction between the center and the lower end in the axial direction. A pulley 51 described later is fitted and fixed to the small diameter portion 19b on the upper end side.

  An output rotary shaft 21 is inserted into the center hole 17a of the lower radial bearing 17 and extends vertically through the bottom wall 14, and cannot be moved in the axial direction by the c-rings 17b on both upper and lower ends of the lower radial bearing 17. It is fixed to. The output rotary shaft 21 has the same diameter as the base portion 21a having the same diameter as the base portion 19a of the input rotary shaft 19 and the small diameter portion 19c of the input rotary shaft 19 extending coaxially from the lower end side of the base portion 21a protruding downward from the housing 11. The small-diameter portion 21b. The base portion 21a has an insertion hole 21c having the same diameter as the small diameter portion 21b extending coaxially from the upper end in the axial direction. The small diameter portion 19c of the input rotary shaft 19 slides in the insertion hole 21c in the axial direction. It fits freely and freely. Further, it has a vertically long fixing hole 21d that penetrates in the radial direction between the center and the upper end in the axial direction at the axial center position of the base portion 21a, and has a fixing hole 21e in the middle of the small diameter portion 21b in the axial direction. Yes. The output rotation shaft 21 is connected to the conversion device 9 by inserting a pin 21f into the fixing hole 21e of the small diameter portion 21b and fixing the pin 21f to the connection portion 9a of the conversion device 9.

  The base 19a of the input rotating shaft 19 includes three first, second, and third input circular disk portions 23A, 23B, and 23C having the same structure at equal intervals between the middle in the axial direction and the lower end in the housing 11. Are fitted in the center hole 25c in order from the bottom, and are fixed coaxially. The input annular disk parts 23A to 23C have a base part 24 in which three steel thin annular plates 24a, 24b, 24a having the same thickness shown in FIGS. The thin plates 24a and 24b have a center hole 25c having the same diameter as the input rotary shaft 19, and are twelve fan-shaped at regular intervals along the entire circumferential direction between the middle in the radial direction and the vicinity of the outer peripheral edge. Recesses 25a and 25b are provided. The recesses 25a and 25b penetrate the thin plates 24a and 24b in the thickness direction. As shown in FIGS. 6 and 7, the radial dimension is the same, but the circumferential dimension of the recess 25a is greater. It is smaller than the recess 25b. As shown in FIG. 4, the thin plates 24a, 24b, and 24a are arranged so that the concave portions 25a of the thin plates 24a on both sides are aligned in the thickness direction, and the both sides in the circumferential direction of the concave portions 25b of the thin plate 24b therebetween are evenly spaced from both circumferential sides of the concave portions 25a. The storage recesses 25 are formed by combining the recesses 25a, 25b, and 25a in this state.

  An input-side magnet 26 is inserted into the receiving recess 25 with the N and S polarities aligned. The input side magnet 26 is a strong and long-life magnet including neodymium, has the same fan shape as the housing recess 25, and as shown in FIGS. 8A to 8C, at both side edges 26a in the circumferential direction. In the middle of the thickness direction, a portion of 1/3 of the total thickness is an engagement convex portion 26b protruding in the circumferential direction with a predetermined dimension. The input-side magnet 26 is fitted into the concave portion 25a of the thin plate 24a, the engaging convex portions 26b on both side edges are placed on both sides in the circumferential direction of the concave portion 25a, and the thick plate 24b is put on this to engage the concave portion 25b. The projections 26b are fitted together, and the thin plate 24a is further superimposed thereon and fitted over the engagement projections 26b. As a result, as shown in FIG. 8D, the input-side magnet 26 is fitted and held in the receiving recess 25, and the upper and lower surfaces thereof are flush with the upper and lower surfaces of the substrate 24 of the input ring disk portions 23A to 23C. It becomes.

  The input circular disk portions 23A, 23B, and 23C are inserted into the input rotary shaft 19 through the center hole 25c and arranged at a predetermined interval, and are fixed so as not to move in the axial direction by a c-ring 19e. Further, the input circular disk portions 23A, 23B, and 23C are integrally fixed so as not to rotate with respect to the input rotary shaft 19 by a pin 19f inserted into the fixing hole 19d of the input rotary shaft 19. The predetermined interval between the input circular disk parts 23A, 23B, and 23C is a dimension that combines the thickness of output circular disk parts 37A to 37D (described later) arranged therebetween and a certain gap provided on both sides thereof.

  In the housing 11, the output conversion member 31 is attached to the input rotary shaft 19 and the output rotary shaft 21. On the slightly upper side of the bottom wall 14 of the output rotating shaft 21, there is an annular weight portion 33 that forms a part of a lower outer plate portion 32, which is a first outer plate portion described later, in which two small-diameter annular thick plates are overlapped. The pin 21g fitted in the center hole and inserted into the fixing hole 21d of the output rotating shaft 21 is fixed integrally with the output rotating shaft 21 so that it cannot move and rotate in the axial direction. A lower outer plate portion 32 is inserted into the output rotation shaft 21 through the center hole 32a, is superimposed on the annular weight portion 33, and is integrally fixed to the annular weight portion 33 by a bolt member 32c. The lower outer plate portion 32 has a larger diameter than the input annular disk portions 23A to 23C, and is provided with a shallow annular mounting groove 32b coaxially in the vicinity of the inner periphery on the upper surface side. The mounting groove 32b is provided to face the mounting groove 14b on the upper surface of the bottom wall 14, and a lower thrust bearing 35 is fitted and fixed to both the mounting grooves 32b and 14b. Thus, the lower outer plate portion 32 is rotatably supported on the bottom wall 14 via the lower thrust bearing 35. The lower thrust bearing 35 is surrounded by the oil stop portion 14c to prevent the oil from spreading around the bottom wall 14.

  On the upper surface of the lower outer plate portion 32, a first output annular disk portion 37A having the same outer diameter and the same thickness as the lower outer plate portion 32 is placed. The output annular disk portion 37A has a base portion 38 in which three steel thin annular plates 38a, 38b, 38a having the same thickness shown in FIGS. The thick plates 38a and 38b have a large-diameter center hole 38c, and twelve fan-shaped recesses 39a and 39b at equal intervals along the entire circumferential direction between the radial middle and the vicinity of the outer circumferential edge. Respectively. The recesses 39a and 39b penetrate the thin plates 38a and 38b in the thickness direction. As shown in FIGS. 9 and 10, the radial dimension is the same, but the circumferential dimension of the recess 39a is larger. It is smaller than the recess 39b.

  As shown in FIG. 5, the thin plates 38a, 38b, 38a have the concave portions 39a of the thin plates 38a on both sides aligned in the thickness direction, and the circumferential sides of the concave portions 39b of the thin plate 38b between them are evenly spaced from both circumferential sides of the concave portions 39a. The storage recesses 39 are formed by combining the recesses 39a, 39b, 39a in this state. The housing recess 39 has the same structure as the housing recess 25 of the input circular disk portions 23A to 23C, and the 12 housing recesses 39 are disposed opposite to the 12 housing recesses 25 within the same radial range. Has been. An output side magnet 41 having the same shape as that of the input side magnet 26 is also inserted into each housing recess 39 with the N and S polarities aligned, and is disposed opposite the input side magnet 26. The upper surface of the first output annular disk portion 37A including the output side magnet 41 is disposed with a short gap between the first input circular disk portion 23A and the first input circular disk portion 23A.

  On the upper surface of the output ring part 37A, an annular shape having the same outer diameter as the output ring part 37A and an inner diameter larger than the outer diameters of the input ring parts 23A to 23C and thicker than the output ring part 37A. The connecting ring portion 43 is coaxially overlapped. The connecting ring portion 43 is formed by superimposing a plurality of thin plates, whereby the overall thickness can be adjusted. On the upper surface of the connecting ring part 43, the second output ring disk part 37B is superimposed and inserted between the first and second input ring disk parts 23A, 23B. The second output ring disc portion 37B has the same structure as the first output ring disc portion 37A, and the first output ring disc is between the lower surface and the upper surface of the first input ring disc portion 23A. A gap having the same size as the gap between the upper surface of the portion 37A and the lower surface of the first input annular disk portion 23A is provided. Similarly to the above, the common output ring part 43 is overlapped on the second output ring part 37B, and the output ring part 37C is also overlapped on the connection ring part 43 in the same manner as described above. It is inserted and arranged between the third input annular disk parts 23B and 23C.

  The third output ring disc portion 37C has the same structure as the first output ring disc portion 37A, and the first output ring disc is disposed between the lower surface thereof and the upper surface of the second input ring disc portion 23B. A gap having the same size as the gap between the upper surface of the portion 37A and the lower surface of the first input annular disk portion 23A is provided. The connection ring part 43 is also superimposed on the third output ring disk part 37C, and the fourth output ring disk part 37D is superimposed on the connection ring part 43. The fourth output ring disc portion 37D also has the same structure as the first output ring disc portion 37A, and the first output ring disc is between the lower surface and the upper surface of the third input ring disc portion 23C. A gap having the same size as the gap between the upper surface of the portion 37A and the lower surface of the first input annular disk portion 23A is provided. Thereby, the input provided in each of the first to third input ring disk parts 23A to 23C and the first to fourth output ring disk parts 37A to 37D which are alternately arranged with a certain gap therebetween. The side magnet 26 and the output side magnet 41 are arranged to face each other with a certain gap in the axial direction.

  The upper outer plate portion 45, which is the second outer plate portion, is overlaid on the fourth output annular disc portion 37D. The upper outer plate portion 45 has an annular plate shape having the same thickness and the same inner and outer diameter as the lower outer plate portion 32, and has a center hole 45 a having the same diameter as the center hole 13 a of the upper surface wall 13 and an inner surface on the upper surface side. An annular mounting groove 45b is provided coaxially in the vicinity of the periphery. An intermediate radial bearing 47 is fixed in the center hole 45 a of the upper outer plate portion 45. The upper outer plate portion 45 is fitted to the input rotary shaft 19 through the center hole 47 a of the intermediate radial bearing 47 and is disposed so as to be rotatable with respect to the input rotary shaft 19. The mounting groove 45b of the upper outer plate portion 45 is provided to face the mounting groove 13b on the lower surface of the upper surface wall 13, and an upper thrust bearing 49 is fitted and fixed to both the mounting grooves 45b and 13b. The lower outer plate 32, the first to fourth output annular plate portions 37A to 37D, the first to third connecting ring portions 43, and the upper outer plate 45, which are coaxially overlapped with each other in this way, The output conversion member 31 is configured by being integrally fastened and fixed by the fixing bolt 31a on the overlapped outer peripheral side. As a result, the output conversion member 31 is fixed to the output rotation shaft 21, is rotatably supported by the input rotation shaft 19, and is supported by the lower and upper thrust bearings 35 and 49 so as to be integrated with the output rotation shaft 21. Thus, the input rotation shaft 19 can be freely rotated.

Next, assembly of the transmission 10 will be described.
The output rotary shaft 21 is inserted into the lower radial bearing 17 fixed to the center hole 14a of the bottom wall 14, and is fixed to the lower radial bearing 17 by a c-ring 17b. An annular weight 33 is inserted into the base portion 21a of the output rotating shaft 21, and is fixed to the output rotating shaft 21 so as not to move in the axial direction and to be non-rotatable by fixing the pin 21g in the fixing hole 21d. A lower thrust bearing 35 is fitted into the mounting groove 14b of the bottom wall 14, and an oil stopper 14c is fixed to the outer peripheral side thereof. The lower outer plate portion 32 is inserted into the output rotating shaft 21 through the center hole 32a, overlapped with the annular weight portion 33, and covered with the upper surface of the lower thrust bearing 35, and the mounting groove 32b thereof is the lower thrust bearing 35. Fitted. The lower outer plate portion 32 and the annular weight portion 33 are integrally fixed by a bolt member 32c.

  Next, the small-diameter portion 19c of the input rotary shaft 19 is inserted into the insertion hole 21c provided in the base portion 21a of the output rotary shaft 21, and is supported by a member (not shown) from above so as to have a specified height. Be placed. The first output ring disc portion 37A is overlaid on the upper surface of the lower outer plate portion 32, and the first connection ring portion 43 is overlaid on the output ring disc portion 37A. Furthermore, at the lower end of the base portion 19a of the input rotary shaft 19, the first input ring disc portion 23A is fixed in an axially immovable manner by the c ring 19e with a predetermined gap from the output ring disc portion 37A, Further, the pin 19f is fixed so as not to rotate.

  Next, the second output ring disc portion 37B is overlaid on the first connection ring portion 43, and the second connection ring portion 43 is overlaid on the output ring disc portion 37B. Next, the input annular disk portion 23B is inserted into the intermediate position of the base portion 19a of the input rotary shaft 19 with a predetermined gap from the output circular disk portion 37A, and moved in the axial direction by the c-ring 19e. The pin 19f is fixed so that it cannot be rotated. Further, the third output ring disc portion 37C is overlaid on the second connection ring portion 43, and the third connection ring portion 43 is overlaid on the output ring disc portion 37C. Next, the third input ring disc portion 23C is inserted into the base portion 19a of the input rotary shaft 19 with a predetermined gap from the output ring disc portion 37C, and moved in the axial direction by the c ring 19e. The pin 19f is fixed so that it cannot be rotated. A fourth output ring disc portion 37D is overlaid on the third connecting ring portion 43, and is disposed with the above gap between the upper surface of the input ring disc portion 23C. On the output annular disk portion 37D, an intermediate radial bearing 47 in which the upper outer plate portion 45 is fixed to the center hole 45a is overlapped with the base portion 19a of the input rotary shaft 19.

  The input rotary shaft 19 is supported so as not to move in the axial direction by attaching a c-ring 47 b to the intermediate radial bearing 47. The upper thrust bearing 49 is fitted in the mounting groove 45 b on the upper surface of the upper outer plate portion 45, and the oil stopper 45 c is erected and fixed around the upper thrust bearing 49. Furthermore, the upper surface wall 13 of the housing 11 is inserted into the base portion 19a of the input rotary shaft 19 through the center hole 16a of the upper radial bearing 16 fixed to the center hole 13a, and the c-ring 16b is attached to the base portion 19a for input. The rotating shaft 19 is supported so as not to move in the axial direction. The upper surface wall 13 is overlapped with the lower mounting groove 13b fitted on the upper thrust bearing 49. The upper surface wall 13 is fixed to the cylindrical portion 12 by bolts 12a. A pulley 51 is fixed to the small diameter portion 19 b on the upper side of the input rotation shaft 19.

  As shown in FIG. 1, the transmission 10 assembled in this way is placed on the support plate 4 of the assembly base 1 with its axis centered in the vertical direction, and the pulley 51 on the upper side of the input rotating shaft 19 is electrically driven. The pulley 7a to which the rotating shaft of the motor 7 is attached is connected by the belt 53, the output rotating shaft 21 is connected to the connecting portion 9a, and is connected to the power generation device 8 through the converting portion 9. Thereby, the transmission 10 can shift the rotation of the electric motor 7 and transmit it to the power generation device 8.

  In the first embodiment configured as described above, the input rotation shaft 19 of the transmission 10 is rotated by the rotation start of the electric motor 7, and the three input annular disk portions are coaxially fixed to the input rotation shaft 19. 23A-23C rotates. The input side magnet 26 supported by each of the input circular disk portions 23A to 23C and the output side magnet 41 disposed opposite to and supported by each of the output circular disk portions 37A to 37D have their polarities. Since they are arranged together, a magnetic repulsive force is generated between them. Therefore, the output side magnet 41 also tries to rotate in the same direction as the input side magnet 26 due to the magnetic repulsive force with the input side magnet 26 due to the rotation of the input side magnet 26 accompanying the rotation of the input circular disk portions 23A to 23C. Here, the three input ring disk parts 23A to 23C supporting the input side magnet 26 and the four output ring disk parts 37A to 37D supporting the output side magnet 41 are alternately arranged with a gap therebetween. Therefore, the magnetic repulsive force acting between the input side magnet 26 and the output side magnet 41 is greatly enhanced. Due to this magnetic repulsive force, the output conversion member 31 including the four output annular disk portions 37A to 37D to which the output side magnet 41 is fixed integrally starts to rotate.

  The output conversion member 31 functions as a mass having a large weight including the lower and upper outer plate portions 32 and 45, the four output ring plate portions 37A to 37D, and the three connection ring portions 43, and outputs. Since a large centrifugal force is generated by the rotation of the conversion member 31, the output conversion member 31 can generate a rotation force that efficiently converts the rotation force of the electric motor 7. Therefore, the rotational force of the output conversion member 31 can be transmitted to the rotation drive shaft of the generator 8 through the conversion unit 9 through the output rotation shaft 21 fixed to the output conversion member 31. As a result, in the first embodiment, the transmission 10 enables smooth power conversion of the rotational force of the electric motor 7 to the generator 8.

  Further, according to the first embodiment, since the housing 11 is formed of a magnetic non-permeable material such as stainless steel or aluminum, the large magnetic force of the input side magnet 26 and the output side magnet 41 does not leak to the outside of the housing 11. Is cut off. As a result, in Example 1, the large magnetic force of the input-side magnet 26 and the output-side magnet 41 is effectively utilized for conversion of the rotational force to the output conversion member 31 by the input annular disk portions 23A to 23C. There is no possibility of adversely affecting external electrical equipment due to the magnetic force leaked to the outside. Further, according to the first embodiment, the transmission 10 includes simple and inexpensive members such as the housing 11, the input rotary shaft 19, the input annular disk portions 23 </ b> A to 23 </ b> C, the output conversion member 31, and the output rotary shaft 21. Because it is cheaply provided.

Next, Example 2 will be described.
As shown in FIGS. 11 and 12, the transmission 60 of the second embodiment includes three input ring disk portions 23 </ b> A to 23 </ b> C and four output ring disk portions 37 </ b> A provided in the transmission 10 of the first embodiment. .., 37D, two input ring disk parts 61A and 61B and three output ring disk parts 72A to 72C are provided, and other configurations are the same as those of the first embodiment. The input circular disk parts 61A and 61B are housed in two fan-shaped inner and outer parts at two positions adjacent to each other in the radial direction in a base part 62a having a central hole 62a obtained by superimposing three steel annular sheets having the same thickness. Recesses 63 and 64 are provided along the circumferential direction, and inner and outer input side magnets 65 and 66 are inserted into the inner and outer housing recesses 63 and 64 with the N and S polarities aligned.

  Further, the output conversion member 71 has a lower outer plate portion 32 and an upper surface thereof overlapped with an upper surface of the first output circular disc portion 72A having the same outer diameter and the same thickness as the lower outer plate portion 32. The ring portion 43 is placed, the second output ring disc portion 72B is superimposed on the upper surface, the connection ring portion 43 is placed on the upper surface, and the third output ring disc portion 72C is superimposed, The upper outer plate portion 45 is overlaid on the upper surface. Inner and outer receiving recesses 74 and 75 are also provided in the base 73 of each of the output ring disc portions 72A to 72C so as to face the inner and outer receiving recesses 63 and 64 of the input ring disc portion 61. Inside and outside input side magnets 76 and 77 are inserted with the N and S polarities aligned. About another structure, it is substantially the same as Example 1, the same code | symbol is attached | subjected about the same part and description is abbreviate | omitted.

  Also in the second embodiment, as in the first embodiment, the input side magnets 65 and 66 supported by the two input annular disk portions 61A and 61B that are coaxially fixed to the input rotary shaft 19 are opposed to this. The output conversion member 71 including the output circular disk portions 72A to 72C is generated by the magnetic repulsive force acting between the output side magnets 76 and 77 that are arranged and supported by the three output circular disk portions 72A to 72C. The rotational force obtained by rotating integrally and efficiently converting the rotational force of the electric motor 7 can be transmitted to the rotational drive shaft of the generator 8 via the converter 9. As a result, also in the second embodiment, the transmission 10 can achieve the same effects as the first embodiment, such as enabling smooth power conversion of the rotational force of the electric motor 7 to the generator 8.

  Furthermore, in the second embodiment, the input side magnets 65 and 66 are disposed separately in two radial directions of the input circular disk parts 61A and 61B. Similarly, in each of the output circular disk parts 72A to 72C, Also, the output side magnets 76 and 77 are arranged in two radial positions corresponding to the input side magnets 65 and 66, so that the outer diameters of the input circular disk portions 61A and 61B and the output conversion member 71 are reduced. When it becomes large, the shapes of the input and output side magnets can be made relatively small. Therefore, in the second embodiment, the magnet can be easily manufactured, so that the price of the magnet can be reduced. As a result, the price of the large transmission can be relatively reduced.

  The specific shapes and numbers of the input ring disk portion, the input side magnet, the output ring plate portion, the output side magnet, etc. of the transmission shown in the above embodiments are examples, and the present invention Various modifications can be made without departing from the spirit of the invention.

DESCRIPTION OF SYMBOLS 10 ... Transmission, 11 ... Housing, 19 ... Input rotating shaft, 21 ... Output rotating shaft, 23A-23C ... Input circular disk part, 25 ... Housing recessed part, 26 ... Input side magnet, 31 ... Output conversion member, 32 ... Lower outer plate portion, 35 ... lower thrust bearing, 37A to 37D ... output ring disc portion, 39 ... receiving recess, 41 ... output side magnet, 43 ... connecting ring portion, 45 ... upper outer plate portion, 49 ... upper thrust Bearing, 60 ... transmission, 61A, 61B ... input circular disk part, 63,64 ... inside, outer housing recess, 65,66 ... inside, outside input side magnet, 71 ... output conversion member, 72A to 72C ... output circle Ring part, 74, 75 ... inside, outer housing recess, 76, 77 ... inside, outside output side magnet

In order to achieve the above object, the structural features of the present invention include a hollow cylindrical housing formed of a magnetic non-permeable material and sealed at both ends with a top wall and a bottom wall, and a top wall and a bottom wall. Either one of them is penetrated in the axial direction at the center, and the input rotary shaft is supported in the wall portion so as to be rotatable and immovable in the axial direction, and the other of the top wall and the bottom wall is axially formed at the center. An output rotary shaft that penetrates and is supported by the wall portion so as to be rotatable and non-movable in the axial direction, and whose end portions in the housing are rotatably engaged with the end portions of the input rotary shaft; An annular thick plate that is coaxially fixed to the input rotary shaft at a plurality of positions spaced apart in the axial direction of the input rotary shaft, and has a plurality of input sides with the same polarity along the entire circumference in the circumferential direction A plurality of input circular disk portions in which magnets are arranged in an annular shape; A first outer plate portion coaxially fixed to the output rotation shaft in the hood and a first outer plate portion in the housing facing the first outer plate portion with a plurality of input annular disk portions, and coaxial to the input rotation shaft And a second outer plate portion that is rotatably disposed, and is disposed so as to overlap each other on the opposing surfaces of the first outer plate portion and the second outer plate portion, and is coaxial between the input annular disk portions. A plurality of annular thick plates having a diameter larger than that of the input annular disk portion arranged on the inner circumferential side of the annular circular plate, the polarities are aligned along the entire circumference in the circumferential direction, and the plurality of output side magnets face the input side magnets. A plurality of output circular disk portions disposed in a row, and a connecting ring portion that is fitted along the entire outer peripheral edge between the output circular disk portions to connect the output circular disk portions; The outer plate portion, the second outer plate portion, the output ring disc portion and the connecting ring portion are fixed and integrated with each other, and the input ring disc portion and the output ring disc portion are slightly separated from each other. It becomes an output converting member that is a gap, between the first outer plate portion opposed thereto and the other of the top and bottom walls, a first thrust bearing coaxially surrounds the output rotary shaft A second thrust bearing is sandwiched coaxially between one of the top wall and the bottom wall and the second outer plate portion so as to surround the input rotation shaft, and the input rotation shaft is the rotation shaft of the external rotation device. And the output rotation shaft is connected to the rotation drive shaft of the external drive device, and the rotation drive shaft is rotated by the rotation of the output rotation shaft.

An input-side magnet 26 is inserted into the receiving recess 25 with the N and S polarities aligned. The input side magnet 26 is a strong and long-life magnet including neodymium, has the same fan shape as the housing recess 25, and as shown in FIGS. 8A to 8C, at both side edges 26a in the circumferential direction. In the middle of the thickness direction, a portion of 1/3 of the total thickness is an engagement convex portion 26b protruding in the circumferential direction with a predetermined dimension. The input-side magnet 26 is fitted into the concave portion 25a of the thin plate 24a, the engaging convex portions 26b on both side edges are placed on both sides in the circumferential direction of the concave portion 25a, and the thick plate 24b is put on this to engage the concave portion 25b. The projections 26b are fitted together, and the thin plate 24a is further superimposed thereon and fitted over the engagement projections 26b. As a result, as shown in FIG. 8D, the input-side magnet 26 is fitted and held in the housing recess 25, and the upper and lower surfaces thereof are flush with the upper and lower surfaces of the base 24 of the input ring disk portions 23A to 23C. It becomes.

In the housing 11, the output conversion member 31 is attached to the input rotary shaft 19 and the output rotary shaft 21. On the slightly upper side of the bottom wall 14 of the output rotating shaft 21, there is an annular weight portion 33 that forms a part of a lower outer plate portion 32, which is a first outer plate portion described later, in which two small-diameter annular thick plates are overlapped. The pin 21g fitted in the center hole and inserted into the fixing hole 21d of the output rotating shaft 21 is fixed integrally with the output rotating shaft 21 so that it cannot move and rotate in the axial direction. A lower outer plate portion 32 is inserted into the output rotation shaft 21 through the center hole 32a, is superimposed on the annular weight portion 33, and is integrally fixed to the annular weight portion 33 by a bolt member 32c. The lower outer plate part 32 has a larger diameter than the input annular disk parts 23A to 23C, and is provided with an annular shallow mounting groove 32b coaxially in the vicinity of the inner periphery of the lower surface . The mounting groove 32b is provided to face the mounting groove 14b on the upper surface of the bottom wall 14, and a lower thrust bearing 35 is fitted and fixed to both the mounting grooves 32b and 14b. Thus, the lower outer plate portion 32 is rotatably supported on the bottom wall 14 via the lower thrust bearing 35. The lower thrust bearing 35 is surrounded by the oil stop portion 14c to prevent the oil from spreading around the bottom wall 14.

As shown in FIG. 1, the transmission 10 assembled in this way is placed on the support plate 4 of the assembly base 1 with its axis centered in the vertical direction, and the pulley 51 on the upper side of the input rotating shaft 19 is electrically driven. The pulley 7a to which the rotating shaft of the motor 7 is attached is connected by the belt 53, the output rotating shaft 21 is connected to the connecting portion 9a, and is connected to the power generating device 8 through the conversion device 9. Thereby, the transmission 10 can shift the rotation of the electric motor 7 and transmit it to the power generation device 8.

The output conversion member 31 functions as a mass having a large weight including the lower and upper outer plate portions 32 and 45, the four output ring plate portions 37A to 37D, and the three connection ring portions 43, and outputs. Since a large centrifugal force is generated by the rotation of the conversion member 31, the output conversion member 31 can generate a rotation force that efficiently converts the rotation force of the electric motor 7. Therefore, the rotational force of the output conversion member 31 can be transmitted to the rotation drive shaft of the generator 8 through the conversion device 9 through the output rotation shaft 21 fixed to the output conversion member 31. As a result, in the first embodiment, the transmission 10 enables smooth power conversion of the rotational force of the electric motor 7 to the generator 8.

Further, the output conversion member 71 has a lower outer plate portion 32 and an upper surface thereof overlapped with an upper surface of the first output circular disc portion 72A having the same outer diameter and the same thickness as the lower outer plate portion 32. The ring portion 43 is placed, the second output ring disc portion 72B is superimposed on the upper surface, the connection ring portion 43 is placed on the upper surface, and the third output ring disc portion 72C is superimposed, The upper outer plate portion 45 is overlaid on the upper surface. Inner and outer receiving recesses 74 and 75 are also provided in the base 73 of each of the output ring disc portions 72A to 72C so as to face the inner and outer receiving recesses 63 and 64 of the input ring disc portion 61. Inside and outside output side magnets 76 and 77 are inserted with the N and S polarities aligned. About another structure, it is substantially the same as Example 1, the same code | symbol is attached | subjected about the same part and description is abbreviate | omitted.

Also in the second embodiment, as in the first embodiment, the input side magnets 65 and 66 supported by the two input annular disk portions 61A and 61B that are coaxially fixed to the input rotary shaft 19 are opposed to this. The output conversion member 71 including the output circular disk portions 72A to 72C is generated by the magnetic repulsive force acting between the output side magnets 76 and 77 that are arranged and supported by the three output circular disk portions 72A to 72C. The rotational force obtained by rotating integrally and efficiently converting the rotational force of the electric motor 7 can be transmitted to the rotational drive shaft of the generator 8 via the converter 9. As a result, also in the second embodiment, the transmission 10 can achieve the same effects as the first embodiment, such as enabling smooth power conversion of the rotational force of the electric motor 7 to the generator 8.

Claims (2)

A hollow cylindrical housing in which both end sides formed of a magnetic non-permeable material are sealed with a top wall and a bottom wall;
An input rotary shaft that passes through one of the top wall and the bottom wall in the axial direction at the center thereof, and is rotatably supported in the wall portion and immovable in the axial direction;
The other of the top wall and the bottom wall is penetrated in the axial direction at the center thereof, and supported by the wall portion so as to be rotatable and non-movable in the axial direction, and an end portion in the housing is connected to an end portion of the input rotation shaft. An output rotation shaft that is rotatably engaged with each other;
An annular thick plate coaxially fixed to the input rotary shaft at a plurality of locations spaced in the axial direction of the input rotary shaft in the housing, and the polarity is aligned along the entire circumferential direction on the outer peripheral side. A plurality of input ring disc portions each having a plurality of input side magnets arranged in an annular shape;
A first outer plate portion coaxially fixed to the output rotation shaft in the housing, and a plurality of the input annular disc portions facing the first outer plate portion in the housing with the input annular disk portion therebetween. A second outer plate portion that is coaxially and rotatably disposed on the input rotation shaft, and is disposed so as to overlap each other on the opposing surfaces of the first outer plate portion and the second outer plate portion. A plurality of annular thick plates having a diameter larger than that of the input annular disc portion disposed coaxially between the annular disc portions, and having a plurality of outputs with the same polarity along the entire circumferential direction on the inner circumferential side thereof A plurality of output annular disk parts arranged with the side magnets facing the input side magnets, and between the output circular disk parts inserted and fitted along the entire outer peripheral edge between the output circular disk parts And connecting the first outer plate portion, the second outer plate portion, the output annular disk portion and the connecting ring portion to each other, and Becomes an output conversion member between the force ring platen and the output annular plate portion is slightly spaced gaps,
The input rotation shaft is connected to the rotation shaft of the external rotation device and is driven to rotate by the external rotation device, and the output rotation shaft is connected to the rotation drive shaft of the external drive device and rotated by the rotation of the output rotation shaft. A transmission characterized by rotating a drive shaft.   The input-side magnets are arranged in a plurality of locations in the radial direction of the input annular disk portion, and the output-side magnets correspond to the input-side magnets in the output circular disk portion. The transmission according to claim 1, wherein the transmission is divided into portions.

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