JP4634939B2 - Generator drive - Google Patents

Description

  The present invention relates to a generator driving device for driving a generator.

  Conventionally, a generator is used as a power source for outdoor construction, leisure, or emergency. Also, in factories and the like, the rated input varies depending on the equipment and devices to be operated, and therefore a generator corresponding to the rated input may be used.

There are various forms of this type of generator, but the most commonly used is a so-called engine generator incorporating an engine for driving the generator. Since the engine generator uses an internal combustion engine, it is necessary to take measures against noise and heat. In particular, when the temperature of the generator rises due to the heat generated by the engine, the output performance and power generation efficiency of the generator are lowered, and as a result, the output voltage may be lowered. Therefore, heat countermeasures are important. Therefore, in the conventional engine generator, various proposals for improving the sound insulation performance and the cooling performance have been made (see, for example, Patent Document 1 and Patent Document 2).
JP 2003-97284 A JP 2004-60567 A

  However, as long as the engine is used as a power source for the generator, conventional engine generators are more or less susceptible to noise and heat problems, and environmentally undesirable NOx generation. It is rare. On the other hand, there are wind power generation and solar power generation as power generation methods with relatively little noise, heat, and environmental problems. However, these power generation methods are greatly affected by weather conditions, and it is difficult to stably generate the necessary power when necessary. There is also a desire to increase the output / input ratio of energy, that is, to generate as much energy as possible with small energy.

  Accordingly, the present invention has as its main object to provide a generator drive device that stably drives a generator while eliminating problems caused by an internal combustion engine in order to satisfy the above-described demand. In addition to the above object, a second object of the present invention is to provide a generator driving device capable of generating as much energy as possible with small energy.

The generator driving device of the present invention is a generator driving device used to drive a generator, and alternately includes two weights, a traction member connected to each of the two weights, and the traction member. The weight is alternately raised by applying an external force to the pulling member so as to be pulled up or wound up, and the external force applied to the pulling member connected to the other weight is released while one weight is being lifted. A weight raising means for dropping the other weight, and one output-side shaft rotatably supported which is directly or indirectly connected to the input portion of the generator to drive the generator. And the pulling member is wound around, rotated according to the rising and falling of the weight by driving the pulling member, and only in the direction in which the weight rises with respect to the output side shaft by the ratchet mechanism. As it is rolling, and an output-side rotary member supported on the output side shaft. The weight raising means outputs the drive side shaft rotated by the motor, the two drive side rotation members rotatably supported by the drive shaft, and the rotation of the drive side rotation member via the traction member or directly. A transmission means for transmitting to the side rotation member; and a connection means for alternately connecting to the two drive side rotation members while rotating together with the drive side shaft. The drive side shaft is connected to the drive side rotation member. In a state where the traction member is driven via the transmission means, the weight is raised in the direction of raising.

  In the generator driving device of the present invention configured as described above, the two weights are alternately raised by the weight raising means, and the raised weight releases the external force applied to the traction member connected to the weight. It falls by that. When the weight falls, the output shaft is rotated via the traction member, and the generator is driven thereby.

For until octopus, connecting means includes a sliding means which is reciprocally moved in the axial direction is attached to the drive-side shaft, the both end portions of the sliding means, mounted retractably in the moving direction of the respective sliding means, sliding means And a connecting rod biased so as to protrude from the slide means in the moving direction of the drive, the drive side rotation member is disposed between the slide means, and the slide means is driven by the drive side rotation member It is good also as a structure in which the notch part in which a connection rod enters is formed by moving toward a side rotation member.

  Alternatively, the weight raising means is supported between one end and the other end and alternately pushes down the two levers in which the weight is suspended via the pulling member on one end side and the other ends of the two levers. And a lever driving mechanism. In this case, the lever drive mechanism is fixed to the drive-side shaft rotated by the motor and the drive-side shaft, and acts to push down the other end side of each lever alternately by rotating with the rotation of the drive-side shaft. And two rotating bars.

  According to the present invention, since the weight is raised and the generator is driven using the fall energy, there is almost no problem of noise and heat generation, and the generator can be driven stably. Moreover, since a large torque can be generated by using the falling energy of the weight, a sufficient torque can be secured even if the rotation of the output side shaft is increased. It can be driven at high speed to generate more power.

  Next, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a front view showing a schematic configuration of a generator driving device according to an embodiment of the present invention. FIG. 2 is a plan view of the generator driving device shown in FIG. In FIGS. 1 and 2, for the sake of simplification of description, only main parts are shown, and structures that are not directly related to the description of the present invention, such as a frame and a bearing, are omitted.

  As shown in FIGS. 1 and 2, the generator driving device 1 of this embodiment includes two weights 4, a weight lifting chain 3 having one end connected to the weight 4, and each weight lifting chain 3. And a weight lifting means that operates to alternately lift the weights 4 by applying an external force.

  The weight raising means includes a primary shaft (drive side shaft) 21 having a rotation sprocket 35 fixed to one end thereof, a switching unit 2 that operates by rotation of the primary shaft 21, and a first motor 6 that drives the switching unit 2. And a second motor 7. The first motor 6 is for rotating the primary shaft 21, and the driving force of the first motor 6 is transmitted to the rotation sprocket 35 via the drive chain 10 a connected to the first motor 6. As a result, the primary shaft 21 rotates in the direction of arrow A (see FIG. 1). The second motor 7 is for switching so that the rotation of the primary shaft 21 is alternately transmitted to the weight lifting chains 3, and the driving force of the second motor 7 is connected to the second motor 7. It is transmitted to the switching sprocket 15 via the drive chain 10b.

  Hereinafter, the switching unit 2 driven by the first motor 6 and the second motor 7 will be described with reference to FIGS. 3 and 4.

  As described above, the switching unit 2 operates by the rotation of the primary shaft 21. The primary shaft 21 is disposed in the horizontal direction, and both ends are rotatably supported by bearings. In a substantially central portion of the primary shaft 21 in the axial direction, a slide member 23 configured as a cylindrical member provided on the outer periphery of the primary shaft 21 coaxially with the primary shaft 21 is not rotatable with respect to the primary shaft 21. And it is provided to be movable in the axial direction. Two guide members 28 are fixed to the slide member 23 at intervals in the axial direction of the primary shaft 21. The guide member 28 is composed of two discs that are spaced apart from each other in the axial direction of the primary shaft 21.

  First clutch plates 29 are fixed to both ends of the slide member 23, respectively. Further, second clutch plates 32 corresponding to the respective first clutch plates 29 are supported on the primary shaft 21 by bearings 34 so as to be rotatable with respect to the primary shaft 21 and not movable in the axial direction. The second clutch plate 32 is disposed on the outside of the first clutch plate 29, that is, on the end portion side of the primary shaft 21, facing the first clutch plate 29 with a gap. The distance between the first clutch plate 29 and the second clutch plate 32 is such that the first clutch plate 29 and the second clutch plate 32 are closest to each other by the movement of the slide member 23 with respect to the primary shaft 21. An interval at which the second clutch plate 32 substantially contacts is set.

  Further, connecting rods 30 are provided at both ends of the slide member 23 so as to be movable forward and backward toward the second clutch plate 32, respectively. The connecting rod 30 is biased toward the second clutch plate 32 by a spring (not shown). When no external force is applied to the connecting rod 30, the tip of the connecting rod 30 is the first clutch plate. 29 protrudes from the surface facing the second clutch plate 32. A roller 31 is rotatably provided at the tip of the connecting rod 30.

  The second clutch plate 32 is formed with a notch 32a having a size that allows the connecting rod 30 to enter. In this example, as shown in FIG. 5, a second clutch plate 32 having two notches 32a at intervals of 180 ° in the circumferential direction is used. The notch 32 a transmits the rotation of the primary shaft 21 to the second clutch plate 32 when the connecting rod 30 enters. Therefore, the timing for transmitting the rotation of the primary shaft 21 can be adjusted by appropriately setting the arrangement and number of the notches 32a.

  When the first clutch plate 29 is farthest from the second clutch plate 32 facing it, the roller 31 is separated from the second clutch plate 32. As the first clutch plate 29 approaches the second clutch plate 32, the roller 31 comes into contact with the second clutch plate 32. When the first clutch plate 29 further approaches the second clutch plate 32, the roller 31 is pushed by the second clutch plate 32, whereby the connecting rod 30 is pushed into the slide member 23 against the biasing force of the spring. It is. In this state, since the second clutch plate 32 is in contact with the roller 31, the second clutch plate 32 can rotate smoothly with respect to the first clutch plate 29.

  FIGS. 6A and 6B show the state of the connecting rod 30 due to the mutual phase difference between the first clutch plate 29 and the second clutch plate 32 at the closest positions. In FIG. 6A, the roller 31 (connection rod 30) is pushed into the slide member 23 by the second clutch plate 32. When the first clutch plate 29 and the second clutch plate 32 rotate relative to each other from this state and the notch portion 32a of the second clutch plate 32 is located at a position facing the connecting rod 30, FIG. As shown in FIG. 3, the connecting rod 30 enters the notch 32a, and the first clutch plate 29 and the second clutch plate 32 are engaged with each other.

  Returning to FIG. 3 and FIG. 4, the description of the switching unit 2 will be continued. A weight elevating sprocket (drive-side rotating member) 33 is fixed to a bearing 34 that rotatably supports the second clutch plate 32 with respect to the primary shaft 21. The weight raising / lowering sprocket 33 is engaged with the weight raising / lowering chain 3 (see FIG. 1).

  Above the slide member 23, the plate 24 is instructed to be movable in the axial direction of the primary shaft 21 by a pair of support bases 22. Two pins 25 are fixed to the lower surface of the plate 24. Each pin 25 enters between the two disks constituting the guide member 28, and the slide member 23 reciprocates together with the plate 24 when the plate 24 reciprocates in the axial direction of the primary shaft 21.

  A pair of cam followers 27 a and 27 b are fixed to the upper surface of the plate 24. The cam followers 27a and 27b are arch-shaped members, and are opposed to each other in the axial direction of the primary shaft 21 with their concave surfaces facing inward. A cam 26 is disposed between the cam followers 27a and 27b. The cam 26 is a substantially egg-shaped eccentric cam, and the rotation of the cam 26 is transmitted through the switching sprocket 15 by the drive of the second motor 7 and is rotated about the vertical axis.

  Next, the operation of the switching unit 2 will be described.

  In the state shown in FIGS. 3 and 4, the cam 26 is not in contact with the cam followers 27a and 27b, and the plate 24 is at an intermediate position in its moving range, and therefore the slide member 23 is also at an intermediate position in its moving position. At this position, neither of the two connecting rods 30 is connected to the second clutch plate 32. Accordingly, the rotation of the primary shaft 21 is not transmitted to the second clutch plate 32.

  When the cam 26 rotates, for example, clockwise from this state, the action portion 26a of the cam 26 starts to contact the cam follower 27a on the left side of the figure. When the cam 26 further rotates, the action portion 26a pushes the cam follower 27a, and accordingly, the plate 24 and the slide member 23 move to the left side in the drawing.

  FIGS. 7A and 7B show a state where the cam 26 is rotated by 90 ° from the state shown in FIGS. In this state, the action part 26a is located on the leftmost side in the figure, and the plate 24 and the slide member 23 are also located at the left end of the movement range. Therefore, the first clutch plate 29 and the second clutch plate 32 on the left side in the figure are in a substantially contacted state. At this time, if the notch 32a of the second clutch plate 32 is positioned on the extension of the connecting rod 30 in the moving direction, the left connecting rod 30 is as shown in FIGS. 7 (a) and 7 (b). It can enter the notch 32a and transmit the rotation of the left first clutch plate 29 to the second clutch plate 32 adjacent thereto. If the notch 32 a is not located on the extension of the connecting rod 30 in the moving direction, the connecting rod 30 is pushed into the slide member 23 by the second clutch plate 32.

  When the cam 26 further rotates, the action portion 26a of the cam 26 pushes the cam follower 27b on the opposite side, whereby the plate 24 and the slide member 23 start to move to the right side in the figure. FIGS. 8A and 8B show a state where the cam 26 is further rotated by 180 ° from the state shown in FIG. In the states shown in FIGS. 8A and 8B, the right and left positional relationships are opposite to those in the states shown in FIGS. 7A and 7B. That is, the plate 24 and the slide member 23 are located at the right end of the movement range, and the first clutch plate 29 and the second clutch plate 32 on the right side in the drawing are substantially in contact with each other. At this time, if the notch 32a of the second clutch plate 32 is positioned on the extension of the moving direction of the connecting rod 30, the right connecting rod 30 enters the notch 32a and the right first clutch The rotation of the plate 29 can be transmitted to the second clutch plate 32 adjacent thereto. If the notch 32 a is not located on the extension of the connecting rod 30 in the moving direction, the connecting rod 30 is pushed into the slide member 23 by the second clutch plate 32.

  As described above, the slide member 23 reciprocates in the axial direction of the primary shaft 21 by continuously rotating the cam 26. On the other hand, by continuously rotating the primary shaft 21, the slide member 23 and each member attached thereto, that is, the first clutch plate 29, the connecting rod 30, and the like are also connected to the primary shaft 21 around the rotation axis of the primary shaft 21. Rotate together. Therefore, by rotating the cam 26 and the primary shaft 21 at the same time, the rotation of the primary shaft 21 is alternately and intermittently transmitted to the second clutch plates 32 and thus to the weight lifting sprockets 33.

  Referring to FIGS. 1 and 2 again, each weight lifting / lowering chain 3 meshes with each of the weight lifting / lowering sprockets 33, and one end thereof is routed through the sprockets 8b and 8c, and a weight is attached to the tip. 4 is suspended. Below the weight 4, a buffer member 18 is provided for buffering an impact when the weight 4 is dropped. Moreover, the other end side of each weight raising / lowering chain 3 is drawn around via the sprocket 8a, and the subweight 5 is suspended by the front-end | tip part. The auxiliary weight 5 applies tension to the weight raising / lowering chain 3 to stabilize the drive of the weight raising / lowering chain 3, and the weight is sufficiently smaller than that of the weight 4.

  The sprocket (output-side rotating member) 8 c is supported by the secondary shaft (output-side shaft) 9, but can be rotated only in the arrow A ′ direction with respect to the secondary shaft 9 by the ratchet mechanism 13. The secondary shaft 9 is rotatably supported by a bearing (not shown). Therefore, when the sprocket 8c rotates in the direction of the arrow A ′, that is, when the sprocket 8c rotates in the direction in which the weight 4 is raised, the sprocket 8c is When the sprocket 8c rotates in the direction opposite to the arrow A ′ direction, that is, when it rotates in the direction in which the weight 4 is lowered, the secondary shaft 9 also rotates together with the sprocket 8c.

  Further, a flywheel 14 and an output transmission sprocket 11 are fixed to the secondary shaft 9. The flywheel 14 applies an inertial force to the secondary shaft 9 and stabilizes the rotation of the secondary shaft 9. In this example, three flywheels 14 are used, but the number is arbitrary. The output transmission sprocket 11 is connected to the speed increaser 16 via the chain 12, and the rotation of the secondary shaft 9 transmitted via the chain 12 is increased by the speed increaser 16 and is output from the output shaft 17. Is output. The output shaft 17 is connected to a rotor on the input side of a generator (not shown) driven by the generator driving device 1, thereby driving the generator and obtaining electric power from the generator.

  Next, operation | movement of the generator drive device 1 of this embodiment is demonstrated.

  When the first motor 6 and the second motor 7 are driven, the switching unit 2 operates as described above. The rotation direction of the second motor 7 may be either, but the rotation direction of the first motor 6 is the direction in which the primary shaft 21 rotates in the direction of arrow A (see FIG. 1).

  In the operation of the switching unit 2, when one connecting rod 30 is connected to the second clutch plate 32 facing it, the rotation of the primary shaft 21 is transmitted to the second clutch plate 32 via the connecting rod 30. In the process in which the connecting rod 30 and the second clutch plate 32 are connected, if the position of the connecting rod 30 and the position of the notch 32a of the second clutch plate 32 coincide with each other, the connecting rod 30 immediately becomes the second. If it is connected to the clutch plate 32 but the positions of the two do not match, the connecting rod 30 is connected to the second clutch plate 32 while the roller 31 at the tip of the connecting rod 30 is pressed against the second clutch plate 32. When the position of the connecting rod 30 and the position of the notch 32a coincide with each other in the circumferential direction, the connecting rod 30 enters the notch 32a by the biasing force of the spring, and the connecting rod 30 and the second clutch plate 32 are connected. In a state where the roller 31 is pressed against the second clutch plate 32, the second clutch plate 32 also tries to rotate due to the rotation of the connecting rod 30, and the second clutch plate 32 includes a weight lifting sprocket 33 and a weight lifting chain. Since the load of the weight 4 is acting via 3, the second clutch plate 32 does not rotate until the connecting rod 30 enters the notch 32 a of the second clutch plate 32.

  As the rotation of the primary shaft 21 is transmitted to the second clutch plate 32, the weight lifting sprocket 33 integral with the second clutch plate 32 rotates in the direction of arrow A shown in FIG. One weight 4 is pulled up via the weight lifting chain 3 by the rotation of the weight lifting sprocket 33. When one of the weights 4 is pulled up, the sprocket 8c rotates in the direction of the arrow A 'shown in FIG. 1, and this rotation is not transmitted to the secondary shaft 9.

  During this time, the other connecting rod 30 is not connected to the second clutch plate 32 facing it, so the rotation of the primary shaft 21 is not transmitted to the weight lifting sprocket 33 on the other side, and the other weight 4 is Can't be raised.

  Next, the connecting rod 30 on the other side is connected to the second clutch plate 32 facing it, and the other weight 4 is pulled up in the same manner as described above. While the connecting rod 30 on the other side is connected to the clutch plate 32, the connection between the connecting rod 30 and the second clutch plate 32 is released on one side. As a result, the second clutch plate 32 and the weight lifting sprocket 33 can freely rotate with respect to the primary shaft 21, and the external force applied to the weight lifting chain 3 is released. The weight 4 that has been dropped falls by its own weight.

  When the weight 4 falls, the sprocket 8c rotates in the direction opposite to the arrow A 'direction shown in FIG. The rotation direction of the sprocket 8c with respect to the secondary shaft 9 is regulated by the ratchet mechanism 13, and the secondary shaft 9 rotates when the sprocket 8c rotates in the direction opposite to the arrow A 'direction. As described above, the secondary shaft 9 is rotated by the fall of the weight 4, and a generator is connected to the secondary shaft 9 via the speed increaser 16, and these loads are applied to the secondary shaft 9. Therefore, the weight 4 does not fall freely but falls at a substantially constant speed.

  By repeating the series of operations described above, the two weights 4 are alternately raised and dropped, and the rotation of each sprocket 8c when each weight 4 is dropped is alternately transmitted to the secondary shaft 9. . As a result, a rotational force in one direction is applied to the secondary shaft 9 almost continuously, and the generator can be driven by utilizing the rotation of the secondary shaft 9. If the rotational speed of the secondary shaft 9 is sufficient to drive the generator, the secondary shaft 9 may be directly connected to the generator without using the speed increaser 16.

  As described above, the generator driving device 1 according to the present embodiment raises the weight 4 using the driving force of the first motor 6 and drives the generator using the kinetic energy generated by the falling weight 4 falling. To do. For raising the weight 4, a small motor with a small output can be used by using appropriate means such as decelerating the rotation of the first motor 6 as necessary. Also for the second motor 7, since the second motor 7 only reciprocates the slide member 23 via the cam mechanism, a small motor with a small output can be used.

  On the other hand, the energy for rotating the secondary shaft 9 is given by the fall of the weight 4 and therefore depends on the weight of the weight 4 regardless of the outputs of the first motor 6 and the second motor 7. Therefore, if the weight of the weight 4 is appropriately set, a large torque can be generated in the secondary shaft 9, and the rotation of the secondary shaft 9 is increased by the speed increaser 16 and the output shaft 17 is rotated at a high speed. In addition, the torque required to drive the generator can be maintained. If the rotor on the input side of the generator is rotated at a high speed, a large amount of electric power can be obtained. As a result, the generator driving device 1 is driven by a small motor, and a larger output electric power is obtained by the generator. be able to. This is because the first motor 6 and the second motor 7 are only used for alternately raising the weights 4 and use the kinetic energy when the weights 4 are dropped by their own weights as the drive source of the generator. It becomes possible by doing. In the present embodiment, the weight of each weight 4 is 600 kg.

  Moreover, since the generator drive device 1 of this embodiment does not use an internal combustion engine as its drive source, it has little noise and heat generation, and there is no environmental impact due to exhaust gas. Furthermore, the generator drive device 1 can drive the generator stably without being influenced by weather conditions like wind power generation or photovoltaic power generation.

  The present invention has been described above by taking typical embodiments as examples. However, the present invention is not limited to the above-described embodiments, and can be appropriately changed within the scope of the technical idea of the present invention. it is obvious.

  For example, in the above-described example, a chain is used as the traction member. However, the traction member is not limited to the chain, and a wire, a rope, or the like can be used as long as it can withstand the weight of the weight.

  An example is shown in FIGS. In the generator driving device 51 shown in FIGS. 9 and 10, the wire take-up pulley (output-side rotating member) 56 integrated with the sprocket 61 is shown in FIG. 9 with respect to the secondary shaft 59 by the ratchet mechanism 63. It is supported so as to be rotatable only in the direction of arrow A ′. The other end of a wire 57 having one end fixed to the weight 54 is fixed to the wire take-up pulley 56. A chain 55 is wound around the sprocket 61 between the weight raising and lowering sprocket 63 of the switching portion 52, whereby the rotation of the primary shaft 53 is transmitted to the wire take-up pulley 56. . In addition, since the configuration of the switching unit 52 is the same as that described in the above example, the description thereof is omitted.

  According to this generator driving device 51, the wire take-up pulley 56 rotates in the direction of arrow A ′ via the chain 55, whereby the wire 57 is taken up by the wire take-up pulley 56 and the weight 54 rises. At this time, the secondary shaft 59 does not rotate due to the action of the ratchet mechanism 63. On the other hand, when the driving force to the chain 55 is released by the operation of the switching unit 52, the wire take-up pulley 56 rotates in the direction opposite to the arrow A 'direction due to the weight of the weight 54, and the weight 54 falls. At this time, the secondary shaft 59 also rotates together by the action of the ratchet mechanism 63, and this rotation is transmitted to the speed increaser 66 via the chain 62.

  As described above, even when the wire 57 is used as the pulling member, the same effect as the above-described example can be obtained.

  Further, as the weight raising means for alternately raising the two weights, the mechanism using the cam has been described in the above-described embodiment, but other mechanisms can also be used. FIG. 11 and FIG. 12 show examples of weight lifting means using a lever. For convenience of explanation, FIGS. 11 and 12 also show the weight lifting chain 87 and the weight 88, but these are not included in the structure of the weight lifting means.

  The weight raising means of this example includes a primary shaft 81 (driving side shaft) to which a rotating sprocket 82 is fixed, two rotating bars 83 fixed to the primary shaft 81 and rotating together with the primary shaft 81, and each rotating bar 83. And two levers 85 respectively moved by. A drive motor 71 is connected to the rotation sprocket 82 via a drive chain 72, and the primary shaft 81 rotates in the direction of arrow A (see FIG. 11) by the drive of the drive motor 71.

  The rotation bar 83 is fixed to the primary shaft 81 so that the longitudinal direction thereof is orthogonal to the rotation axis of the primary shaft 81 and the longitudinal directions of the two rotation bars 83 are orthogonal to each other. The rotating bar 83 is fixed to the primary shaft 81 at the center in the longitudinal direction. Rollers 84 are supported at both ends of the rotation bar 83 so as to be rotatable about an axis parallel to the rotation axis of the primary shaft 81.

  The two levers 85 are swingably supported around a lever support shaft 86 disposed in parallel with the primary shaft 81 so that the two levers 85 are positioned below the respective rotation bars 83. The lever support shaft 86 is disposed so as to be shifted in the horizontal direction with respect to the primary shaft 81 and supports the intermediate position in the longitudinal direction of the lever 85. The deviation amount of the lever support shaft 86 with respect to the primary shaft 81 is set so that the roller 84 is always positioned on one side of the lever 85 with respect to the lever support shaft 86 when the rotary bar 83 is rotated. . A weight 88 is suspended from a weight raising / lowering chain 87, which is a pulling member, on the other end of each lever 85, and a downward load from the weight 88 is applied.

  When the rotation bar 83 is rotated by driving the primary shaft 81, the roller 84 on one end side of the rotation bar 83 comes into contact with the upper surface 85 a of the lever 85. When the rotation bar 83 further rotates, the roller 84 that contacts the upper surface 85a of the lever 85 moves in a direction away from the lever support shaft 86 while rotating on the upper surface 85a. One side of the lever 85 is pushed down by the action of the rotating bar 83 at this time. When the lever 85 is pushed down on one side, the other side is lifted, and the weight 88 is thereby raised. The ratio of the distance from the fulcrum of the lever 85 (support position by the lever support shaft 86) to one end and the distance from the fulcrum to the other end depends on the rotation torque of the rotation bar 84 and the weight of the weight 88. However, it is determined that one side of the lever 85 can be pushed down by overcoming the gravity of the weight 88 acting on the other side of the lever 85.

  When the rotation bar 83 further rotates, the roller 84 reaches one end of the lever 85 and comes off from the upper surface 85a of the lever 85. As a result, the force applied to the weight lifting chain 87 via the lever 85 by the rotating bar 83 is released, the weight 88 is dropped, and one side of the lever 85 is lifted.

  Since the rotation bar 83 is fixed to the primary shaft 81 at the center in the longitudinal direction and the rollers 84 are provided at both ends, the above-described operation is repeated twice while the rotation bar 83 makes one rotation. In addition, since the two rotary bars 83 are attached with a 90 ° shift around the axis of the primary shaft 81, the above-described operation is alternately performed between the two rotary bars 83. That is, by continuously rotating the primary shaft 81 by the drive motor 71, the rising and falling of the two weights 88 are alternately repeated.

  Therefore, in the same way as the above-described embodiment using the weight raising means using the cam, the secondary shaft (not shown) which is the output side shaft is unidirectionally provided in the middle of the route of the weight raising / lowering chain 88. Engaging with a sprocket (not shown) that is an output-side rotating member that is rotatably supported, and configured so that the rotation of the secondary shaft is input to the rotor on the input side of the generator (not shown). The machine can be driven. Also in this example, as in the above-described embodiment, the energy generated by the falling of the weight 88 is used for driving the generator. Therefore, even if the drive motor 71 used to raise the weight 88 is small, power generation is possible. High output power can be obtained from the machine.

  In either case of a mechanism using a cam or a mechanism using a lever, the drive source of the weight raising means is not limited to an electric motor, and a hydraulic device such as a hydraulic cylinder may be used.

  Furthermore, in each of the above-described examples, a chain transmission mechanism is used as a power transmission mechanism, but any transmission mechanism such as a belt transmission mechanism is used as long as it can transmit power to each machine element. be able to.

It is a front view which shows schematic structure of the generator drive device by one Embodiment of this invention. It is a top view of the generator drive device shown in FIG. It is a side view of the switching part shown in FIG. It is a top view of the switching part shown in FIG. It is a front view of a 2nd clutch board. It is a figure explaining the connection operation | movement of a connection rod. It is the side view and top view explaining operation | movement of a switching part. It is the side view and top view explaining operation | movement of a switching part. It is a front view which shows schematic structure of the generator drive device by other embodiment of this invention. It is a top view of the generator drive device shown in FIG. It is a front view of the other example of the weight raising means. It is a top view of the weight raising means shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,51 Generator drive device 2,52 Switching part 3,87 Weight raising / lowering chain 4,54,88 Weight 5 Subweight 6 1st motor 7 2nd motor 8a, 8b, 8c Sprocket 9, 59 Secondary shaft 11 Output Transmission sprocket 13 Ratchet mechanism 14, 63 Flywheel 16, 66 Gearbox 17 Output shaft 21, 53, 81 Primary shaft 22 Support base 23 Slide member 24 Plate 26 Cam 27a, 27b Cam follower 29 First clutch plate 30 Connecting rod 32 First 2 Clutch plate 32a Notch 33, 63 Weight lifting sprocket 56 Wire take-up pulley 57 Wire 71 Drive motor 72 Drive chain 83 Rotating bar 84 Roller 85 Lever

Claims (4)

A generator driving device used to drive a generator,
Two weights,
A traction member connected to each of the two weights;
The pulling member is alternately connected to the other weight while the weight is lifted alternately by applying an external force to the pulling member so that the pulling member is alternately pulled up or wound. A weight raising means for releasing the external force applied to and dropping the other weight;
One output-side shaft rotatably supported connected directly or indirectly to the input of the generator to drive the generator;
Each of the pulling members is wound around, rotated by the driving of the pulling member according to the rising and falling of the weight, and rotated only in the direction in which the weight is lifted with respect to the output side shaft by the ratchet mechanism. to, have a, and an output-side rotary member supported on the output side shaft,
The weight raising means is
A drive-side shaft rotated by a motor;
Two drive-side rotating members each rotatably supported by the drive shaft;
A transmission means for transmitting the rotation of the driving side rotating member to the output side rotating member via the pulling member or directly;
Connecting means for alternately connecting to the two drive side rotating members while rotating together with the drive side shaft;
The drive-side shaft, in a state in which the coupling means for driving the pulling member through the transmission means connected with the driving side rotational member, Ru is rotated in a direction to increase the weight, the generator drive. The connecting means includes
Slide means attached to the drive side shaft and reciprocally moved in the axial direction;
A connecting rod provided at each end of the sliding means so as to be movable forward and backward in the moving direction of the sliding means and biased so as to protrude from the sliding means in the moving direction of the sliding means;
The drive-side rotation member is disposed with the slide means interposed therebetween, and the drive-side rotation member is cut into which the connecting rod enters when the slide means moves toward the drive-side rotation member. The generator drive device according to claim 1 , wherein a notch is formed. The weight raising means is
Two levers supported between one end and the other end, and the weight is suspended on one end side via the pulling member;
A lever drive mechanism for alternately pushing down the other ends of the two levers;
The generator drive device according to claim 1, comprising: The lever drive mechanism is
A drive-side shaft rotated by a motor;
Two rotating bars fixed to the driving side shaft and acting to alternately push down the other end side of each lever by rotating with the rotation of the driving side shaft;
The generator drive device according to claim 3 , comprising:

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