JP2006200747A - Reduction gear for geared motors, geared motor, and its series - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate combination and selection of a reduction gear and a motor and constitution of also a geared motor for rectangular cross and also a parallel axis geared motor by using the same general-purpose helical motor. <P>SOLUTION: Both of an orthogonal gear head 100 having an orthogonal converting mechanism 104 provided with a helical inner spline (a helical gear), which can be geared with a helical spline (a helical pinion) on a motor shaft 402, as an own input gear, and capable of converting the rotation direction of a power inputted from the motor 400 side into an orthogonal direction, and a parallel gear head 200 having a parallel axis reduction mechanism capable of effecting reduction of a power inputted from the side of the motor 400 can be coupled with the same motor 400, and in at least the one of them, a plurality of kinds are prepared exchangeably for the same motor 400. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a reduction gear, a geared motor, and a series thereof used for industrial machines, transportation machines, and the like.

  2. Description of the Related Art Conventionally, orthogonal axis type reduction gears and parallel axis type reduction gears are known as devices that reduce the power output from an electric motor such as a motor or change the rotation direction thereof. In this case, an orthogonal shaft type speed reducer is combined with the motor when a change in the rotational direction of the motor power is necessary, and a parallel shaft type speed reducer is combined with the motor when only the speed reduction is required. Is configured.

  When both rotation direction conversion and deceleration are required, a geared motor is configured by combining a reduction gear and a motor in which both an orthogonal conversion mechanism and a parallel shaft reduction mechanism are housed in one casing. (For example, refer to Patent Document 1).

  Note that a gear transmission mechanism, a friction transmission mechanism, and the like can be considered as the speed reduction means of the reduction gear, but a gear transmission mechanism that can reduce the size and cost of the apparatus is often used.

JP 2001-103710 A

  When conversion in the rotation direction is required, an orthogonal transformation mechanism is usually arranged at the first stage. This is because a rational design can be achieved by using an orthogonal transformation mechanism that tends to be costly at a portion where the torque to be handled is small. For this reason, in the case of a geared motor that requires conversion of the rotation direction, an orthogonal pinion is often formed at the tip of the motor shaft of the motor, as seen in Patent Document 1 above. However, this configuration can certainly reduce the number of parts when viewed as a geared motor alone, but when viewed from the manufacturer side, it is suitable for the size, type, or application of the motor. There was a problem that a great variety of motors and reduction gears had to be prepared. For example, a motor in which a hypoid pinion is formed for orthogonal use is already special, and there are many types of this type of motor according to the reduction ratio and motor capacity, and various types of hypoid pinions that mesh with it. This is not a small burden for manufacturers.

  For this reason, reduction gear manufacturers have problems such as an increase in inventory costs and an increase in development costs.On the other hand, for reduction gear users, not only does the purchase cost increase as a result, but each time the usage is changed slightly. There was a problem that a new geared motor had to be purchased.

  The present invention has been made to solve such a problem, and facilitates the combination and selection of a reduction gear and a motor, and in particular, a motor having a low-cost helical pinion that is abundantly supplied to the market. , And can be used for both orthogonal axes and parallel axes, so that the geared motor can be used rationally and can be used flexibly. The issue is to provide the series.

  The present invention relates to a series of reduction gears for a geared motor used for forming a geared motor having a motor having a helical pinion and a reduction gear, and has a helical gear that can mesh with the helical pinion as its input gear and the motor. An orthogonal gear head having an orthogonal conversion mechanism capable of converting the rotational direction of power input from the side of the motor to an orthogonal direction, and a helical gear meshable with the helical pinion as its input gear and input from the motor side At least one of the parallel gear heads having a parallel shaft reduction mechanism capable of reducing the power is prepared so that it can be exchanged for the same motor, thereby solving the above-mentioned problems.

  Also, the present invention provides a motor having a helical pinion, a helical gear that can mesh with the helical pinion as its own input gear, and an orthogonal transformation capable of converting the rotational direction of power input from the motor side into an orthogonal direction. An orthogonal gear head having a mechanism, and a parallel gear head having a helical gear that can mesh with the helical pinion as its own input gear and having a parallel shaft reduction mechanism that can reduce power input from the motor side, and By providing a series of geared motors characterized in that at least one of the orthogonal gear head and the parallel gear head is prepared so as to be replaceable with respect to the motor, the above-mentioned problems are similarly solved.

  Further, the present invention is an orthogonal configuration comprising a motor having a helical pinion, an orthogonal pinion having a helical gear meshable with the helical pinion as an input gear on one end side of the motor, and an orthogonal gear meshing with the orthogonal pinion. By providing a geared motor including an orthogonal gear head including a conversion mechanism, and the orthogonal gear head and the motor can be independently separated from each other, the above problem is similarly solved.

  In the present invention, a reduction gear (or a geared motor) that requires conversion of the rotation direction of the motor shaft or a reduction device that does not require conversion of the rotation direction of the motor shaft is combined with this. As the motor, a helical pinion motor that is widely supplied in the market is used. That is, both orthogonal gear heads and parallel gear heads can be connected to the same motor, and at least one (preferably both) of them can be exchanged for the same motor. Is done. For this reason, it is not necessary for the manufacturer side to make variations on the motor. On the other hand, for the user, a motor that can be easily procured can be used for both orthogonal and parallel shafts, and since the motor is provided in a state in which it can be separated from the reducer side, replacement is easy. .

  According to the present invention, the combination and selection of a reduction gear and a motor are facilitated, and an orthogonal geared motor and a parallel shaft geared motor can be configured using the same general-purpose helical motor. It is possible to provide a reduction gear for a geared motor, a geared motor, and a series thereof that can be used rationally.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a cross-sectional view of a geared motor 500 to which a reduction gear for a geared motor according to the present invention is applied. The geared motor 500 includes a speed reducer 300 including an orthogonal gear head 100 and a parallel gear head 200, and a motor 400.

  The motor 400 includes a helical spline (helical pinion) 403 at the tip of the motor shaft 402.

  The orthogonal gear head 100 includes an in-helical spline (helical gear) 111 that can mesh with the helical spline 403, and the in-helical spline 111 functions as an input gear of the orthogonal gear head 100. The orthogonal gear head 100 accommodates an orthogonal conversion mechanism 104 capable of converting the rotational direction of power input from the motor 400 side into an orthogonal direction.

  The parallel gear head 200 accommodates a parallel shaft reduction mechanism 206 that can reduce the power of the input shaft 108. The parallel gear head 200 is connected to the rear stage of the orthogonal gear head 100 in this embodiment. However, as will be described later, the first gear 210 meshes with the helical spline 403 of the motor 400 by sharing the mating dimensions. Designed to be able to function as a possible helical gear. Therefore, by directly connecting the parallel gear head 200 to the motor 400 instead of the orthogonal gear head 100, a parallel shaft geared motor having only the motor 400 + the parallel gear head 200 can be configured.

  Of course, the parallel gear head connected to the subsequent stage of the parallel gear head 100 in this embodiment is not necessarily connected, and an orthogonal geared motor including only the motor 100 + orthogonal gear head 100 can be configured.

  Hereinafter, the configuration of each unit will be described in more detail.

  On the mounting surface F1 of the motor 400 and the orthogonal gear head 100, the orthogonal gear head 100 is located with respect to the motor 400 around the output shaft (hereinafter simply referred to as the motor shaft) 402 of the motor 400 in the circumferential direction R1 of the motor shaft 402. It can be mounted by rotating 90 degrees at a time. The motor 400 and the orthogonal gear head 100 are connected by a bolt (not shown).

  In addition, the parallel gear head 200 also has an intermediate shaft centered on an output shaft (hereinafter simply referred to as an intermediate output shaft) 108 of the orthogonal gear head 100 with respect to the orthogonal gear head 100 on the mounting surface F2 of the orthogonal gear head 100 and the parallel gear head 200. The output shaft 108 can be attached by being rotated by 90 ° in the circumferential direction R2. The orthogonal gear head 100 and the parallel gear head 200 are connected by a bolt (not shown).

  The cross-sectional shape of the intermediate casing 102 including the input / output axes L1 and L2 of the orthogonal gear head 100 is L-shaped, and the rear casing 204 of the parallel gear head 200 is defined by both L-shaped sides 102a and 102b of the intermediate casing 102. Most of the space is in the space.

  Further, the mating dimensions of the motor 400 and the orthogonal gear head 100 on the mounting surface F1 are the same as the mating dimensions of the orthogonal gear head 100 and the parallel gear head 200 on the mounting surface F2. Specifically, the angular dimensions of the orthogonal gear head 100 and the motor 400 are substantially the same, and the positions of mounting bolt holes (not shown) are formed at the same position (corresponding to the apex of a square near the apex of the mounting surface F1). . The positions of the mounting bolt holes (not shown) of the orthogonal gear head 100 and the parallel gear head 200 are also formed at the same position (a position corresponding to the apex of the square near the apex of the mounting surface F2). In other words, the motor 400 and the parallel gear head 200 have dimensions that can be engaged with each other, and the parallel gear head 200 can be directly connected to the motor 400 (a geared motor of the motor 400 + the parallel gear head 200 can be configured: described later). .

  The orthogonal gear head 100 has an orthogonal conversion mechanism 104 that converts the rotation direction of power input from the motor 400 into an orthogonal direction, and an intermediate parallel shaft reduction mechanism 106 that decelerates the output rotation of the orthogonal conversion mechanism 104. In addition, these mechanisms 104 and 106 are housed in a single intermediate casing 102.

  The orthogonal transformation mechanism 104 includes an intermediate first gear 110 and an intermediate second gear 112 made of bevel gears.

  The intermediate first gear (orthogonal pinion) 110 is rotatably supported by bearings 130 and 131, and rotates about the input axis L1 of the orthogonal gear head 100 as its axis.

  The intermediate second gear (orthogonal gear) 112 is rotatably supported by bearings 132 and 133, and orthogonally meshes with the intermediate first gear 110 on its one end side 112a, and on the other end side 112b. Cantilevered on the intermediate casing 102 of the orthogonal gear head 100.

  The end portions 110a and 112a on one end side of the intermediate first gear 110 and the intermediate second gear 112 are in contact with the intermediate casing 102, respectively.

  Further, the intermediate first gear 110 is provided with a hole 110b for inserting the motor shaft 402 along the axis L1, and the motor shaft 402 and the intermediate first gear 110 are connected to the inside of the hole 110b. Helical intra-splines (helical gears) 403 for connection are formed. That is, the helical spline 403 of the intermediate first gear (orthogonal pinion) 110 functions as an input gear of the orthogonal transformation mechanism 104 of the orthogonal gear head 100.

  The intermediate first gear 110 and the intermediate second gear 112 are made of self-lubricating plastic.

  On the other hand, the intermediate parallel shaft reduction mechanism 106 in the orthogonal gear head 100 includes an intermediate output shaft 108 that rotates about the axis L <b> 2 and an intermediate third gear 114.

  The intermediate output shaft 108 is rotatably supported by bearings 134 and 135, and the axis L2 of the intermediate output shaft 108 is in a relationship orthogonal to the axis L1 of the intermediate first gear 110 of the orthogonal transformation mechanism 104 in plan view. In addition, there is a parallel relationship with the axis L3 of the intermediate second gear 112 in plan view.

  Further, a helical spline 403 having the same module as the motor shaft 402 is formed on the intermediate output shaft 108.

  The intermediate third gear 114 meshes with the intermediate second gear 112 of the orthogonal transformation mechanism 104 on the outer periphery thereof, is attached to the intermediate output shaft 108, and rotates about the same axis L2 as the intermediate output shaft 108. .

  2 is a cross-sectional view taken along the line II-II of the parallel gear head 200 in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line III-III in FIG.

  The parallel gear head 200 has a parallel shaft speed reduction mechanism 206 including an output shaft (hereinafter simply referred to as a final output shaft) 202 that is a final output shaft when the geared motor 500 is formed, and the parallel shaft speed reduction mechanism. The mechanism 206 is housed in the rear casing 204. In addition, as shown in FIG. 3, the cross-sectional shape of the back | latter stage casing 204 is a square.

  The final output shaft 202 is rotatably supported by the bearings 230 and 231 and rotates about the axis L4. The axis L4 is in parallel with the axis L2 of the intermediate output shaft 108 in a plan view.

  The parallel shaft reduction mechanism 206 in the parallel gear head 200 includes a final output shaft 202, a first shaft 206, and a second shaft 208.

  The first shaft 206 is rotatably supported at both ends by bearings 232 and 233. The first shaft 206 has a large-diameter rear first gear 210 that rotates about its axis L5 and a smaller diameter. A second rear gear 212 is provided.

  Further, the second shaft 208 is arranged in parallel with the first shaft 206 with the position corresponding to L6 in the drawing as the axis center on the back side of the drawing. The second shaft 208 meshes with the rear second gear 212, the rear third gear 214 having a larger diameter than the second rear gear 212, and the rear fourth gear 216 having a smaller diameter than the rear third gear 214. Is provided. The second shaft 208 is rotatably supported at both ends by bearings (not shown).

  The final output shaft 202 of the parallel gear head 200 is provided with a rear fifth gear 218 that meshes with the rear fourth gear 216.

  The front end of the intermediate output shaft 108 is directly chopped, inserted into the rear casing 204 of the parallel gear head 200, meshed with the rear first gear 210 provided on the first shaft 206, and the parallel shaft speed reduction The first stage gear set of the mechanism 206 is configured.

  However, in this embodiment, the parallel gear head 200 is connected to the rear stage of the orthogonal gear head 100 as described above. However, as described above, the parallel gear head 200 has an input that allows the first gear 210 of the rear stage to mesh with the motor shaft 402. It has a function as a gear and can be directly connected to the motor 400.

  Next, the operation of the geared motor 500 will be described.

  When the motor 400 is energized, the intermediate first gear 110 rotates about its axis L1 through meshing of a helical spline (helical pinion) 403 formed at the tip of the motor shaft 402 and a helical spline (helical gear) 111. To do.

  Then, due to the rotation of the intermediate first gear 110, the intermediate second gear 112 orthogonal to and meshing with the intermediate first gear 110 rotates about the direction L3 orthogonal to the axis L1. As a result, the rotation direction of the power input from the motor shaft 402 is changed by 90 °.

  Further, the intermediate third gear 114 meshed with the intermediate second gear 112 and the intermediate output shaft 108 to which the intermediate third gear 114 is attached by the rotation of the intermediate second gear 112 are in the parallel relationship with the axis L3. Rotate around the axis. Then, the rotation transmitted from the intermediate second gear 112 is decelerated and output to the intermediate output shaft 108.

  Further, when the intermediate output shaft 108 rotates about its axis L 2, the rear stage first gear 210 that meshes with the tip of the intermediate output shaft, and the first shaft 206 that is the same as the rear stage first gear 210 are provided. The rear stage second gear 212 rotates about the axis L5 of the first shaft 206. At this time, the rotation of the intermediate output shaft 108 is decelerated by the ratio of the number of teeth of the intermediate output shaft 108 and the rear first gear 210 and is transmitted to the rear second gear 212.

  Thereafter, simultaneously with the rotation of the second-stage second gear 212, a third-stage gear 214 that meshes with the second-stage second gear 212 and a fourth-stage gear 216 provided on the second shaft 208 that is the same as the third-stage gear 214 are provided. The rotation rotates around the axis L6 of the second shaft 208, and the rotation transmitted from the second gear 212 at the rear stage is further decelerated.

  Finally, the rotation of the rear stage fourth gear 216 rotates the rear stage fifth gear 218 that meshes with the rear stage fourth gear 216, and the final output shaft 202 rotates to output power.

  As shown in the schematic diagram of FIG. 4, the orthogonal gear head 100 can be attached to the motor 400 by rotating the motor shaft 402 around the motor shaft 402 in the circumferential direction R1 by 90 ° and in parallel. The gear head 200 can also be attached to the orthogonal gear head 100 by rotating by 90 ° around the intermediate output shaft 108 in the circumferential direction R2 of the intermediate output shaft 108. Therefore, the direction of the final output shaft 202 of the geared motor 500 Can be changed in 16 ways, and the geared motor can be mounted in accordance with the intended use, and the change is easy.

  In addition, since the engagement on the mounting surface F1 of the motor 400 and the orthogonal gear head 100 and the engagement on the mounting surface F2 of the orthogonal gear head 100 and the parallel gear head 200 are the same, the parallel gear head 200 does not pass through the orthogonal gear head 100, and the motor 400 A parallel shaft geared motor having a parallel reduction function can be easily configured.

  Moreover, in order to realize this specifically, as shown in FIG. 1, the helical spline (helical pinion) 403 of the same module is formed on the intermediate output shaft 108 and the motor shaft 402, and the first gear 110 is provided on the first gear 110. Is configured to form an inner spline (helical gear) 111 capable of constant-speed circumscribing with the helical spline 403 of the motor shaft 402 along the axis L1.

  That is, since the helical spline 403 of the same module is formed on the intermediate output shaft 108 and the motor shaft 402, the rear stage first gear 210 of the parallel gear head 200 is not only the intermediate output shaft 108 but also the motor shaft 402. Can mesh directly.

  In addition, even if the helical spline 403 is formed on the motor shaft 402 in this way, the inner spline can be engaged with the helical spline 403 of the motor shaft 402 at a constant speed along the axial center L1 of the intermediate first gear 110. By forming 111, it is possible to integrate both 402 and 110 simply by screwing the motor shaft 402 so that the intermediate first gear 110 can be crowned.

  As a result, coupled with the compatibility of the connection, both the connection between the motor 400 and the orthogonal gear head 100 and the connection between the motor 400 and the parallel gear head 200 can be easily and without difficulty. When the motor shaft 402 and the intermediate first gear 110 are connected, it is preferable that a load is applied in a direction in which the intermediate first gear 110 is screwed (tightened) by the motor shaft 402 by the rotation of the motor shaft 402. The connection between the motor shaft 402 and the intermediate first gear 110 is not loosened.

  Since the orthogonal gear head 100 includes the orthogonal conversion mechanism 104 and the intermediate parallel shaft reduction mechanism 106 and includes the single intermediate casing 102, the orthogonal gear head 100 alone can be used as a reduction gear that performs orthogonal conversion and reduction.

  Similarly, the parallel gear head 200 also has a parallel shaft reduction mechanism 206 and is composed of a single rear casing 204, so that the parallel gear head 200 alone can be used as a reduction gear that performs parallel axis reduction.

  Further, the intermediate second gear 112 provided in the orthogonal conversion mechanism 104 of the orthogonal gear head 100 is orthogonally meshed with the intermediate first gear 110 on one end side 112a thereof, and the intermediate casing 102 of the orthogonal gear head 100 on the other end side 112b. Therefore, a thrust force applied from the intermediate first gear 110 can be received by the intermediate casing 102.

  Further, by using the intermediate first gear 110 and the intermediate second gear 112 as bevel gears, the orthogonal gear head 100 can be reduced in size, increased in efficiency, and reduced in cost. In addition, the intermediate first gear 110 can be reduced. And since the intermediate second gear 112 is made of self-lubricating plastic, lubricating oil is unnecessary.

  Since the end portions 110a and 112a on one end side of the intermediate first gear 110 and the intermediate second gear 112 are in contact with the intermediate casing 102, the intermediate casing 102 is connected to the intermediate first gear 110 and the intermediate second gear 112. It also functions as positioning means for restricting movement in the respective central axis directions L1 and L3.

  In the above embodiment, the intermediate first gear 110 and the intermediate second gear 112 provided in the orthogonal conversion mechanism 104 of the orthogonal gear head 100 are bevel gears, but the present invention is not limited to this. A worm gear, a hypoid gear, or the like may be used. Rather, as will be described later, it is desirable to make these selectable according to the application.

  Further, the intermediate first gear 110 and the intermediate second gear 112 may not be made of plastic. Therefore, for example, it may be made of a self-lubricating material such as sintered oil impregnation. Furthermore, the material does not necessarily have to be self-lubricating.

  In the above-described embodiment, the intermediate first gear 110 and the intermediate second gear 112 are rotatably supported by the bearings 130 to 133, respectively. However, as shown in FIG. It is good also as a structure which press-fits into the casing 102 and makes the intermediate | middle 1st gear 110 and the intermediate | middle 2nd gear 112 rotatable by this pin 150,152. Moreover, it is good also as a structure which supports the orthogonal transformation mechanism 104 which consists of the intermediate | middle 1st gear 110 and the intermediate | middle 2nd gear 112 in a both-supported state.

  In the above embodiment, the output shaft 202 of the parallel gear head 200 is a solid shaft. However, as shown in FIG. 5, if a hollow shaft 250 having a hollow portion 250a for inserting a driven shaft is used as the output shaft. Since the connecting member with the counterpart machine is unnecessary, the power transmission member can be reduced, and the driven shaft can be inserted into the hollow portion 250a, and even when the driven shaft is incorporated into a driven device such as a conveyor, Overall miniaturization and space saving can be realized.

  Further, when one side (the lower side in FIG. 5) of the hollow portion 250a in the axial direction L4 has a bottom, one end side of the hollow shaft 250 can be accommodated in the casing 252. In this case, the hollow shaft 250 can be supported in a state of being disconnected from the outside of the casing 252, and therefore the lubricating oil inside the apparatus is less likely to leak to the outside as compared with the case where the hollow portion 250a is formed as a through hole. Since the seal 256 only needs to be installed on one side of the hollow shaft 250, the load applied to the hollow shaft 250 is small, power loss can be prevented, and the cost can be reduced by reducing the number of components. .

  In the intermediate parallel shaft reduction mechanism 106 in the orthogonal gear head 100, the reduction mechanism is constituted by the intermediate second gear 112 and the intermediate third gear 114. However, the present invention is not limited to this, and a reduction function is not necessarily provided. There is no need. In addition, an endless transmission mechanism such as a chain or a belt may be used instead of the gear mechanism. When the intermediate parallel shaft speed reduction mechanism is configured by the endless transmission mechanism, the distance between the axis L3 of the intermediate second gear 112 and the axis L2 of the intermediate output shaft 108 can be adjusted almost arbitrarily. In addition, when a belt is used, noise can be reduced and a function of a torque limiter can be provided by positively utilizing the slip of the belt.

  Next, a series of geared motors constituted by the combination of the orthogonal gear head 100, the parallel gear head 200, and the motor 400 will be described.

  FIG. 6 schematically shows an example of a combination of the motor 400, the orthogonal gear head 100, and the parallel gear head 200, and at least one of the motor 400, the orthogonal gear head 100, and the parallel gear head 200 is prepared in a replaceable manner. It is a series example of a geared motor.

  6A is a series of geared motors in which a plurality of types of parallel gear heads 200a, 200b, 200c,... Are prepared for one type of motor 400 and orthogonal gear head 100. FIG.

  By providing such a series, the user can select the parallel gear head 200 according to the intended use after preparing one type of motor 400 and orthogonal gear head 100.

  6B is a series of geared motors in which a plurality of types of orthogonal gear heads 100a, 100b, 100c,... Are prepared for one type of motor 400 and parallel gear head 200, and FIG. Is a series of geared motors in which a plurality of types of motors 400 a, 400 b, 400 c,... Are prepared for one type of orthogonal gear head 100 and parallel gear head 200.

  Even in such a series, the user can select a device according to the intended use from a plurality of types of orthogonal gear heads 100a, 100b, 100c,... Or a plurality of types of motors 400a, 400b, 400c,.

  In addition, with this series, reduction gear manufacturers can share equipment, shortening delivery time, reducing inventory, etc., and reducing development costs to reduce the cost of reduction gears. Can be achieved.

  (1) to (3) in FIG. 6 are configuration examples of the geared motor.

  That is, by connecting and integrating the motor 400, the orthogonal gear head 100, and the parallel gear head 200, the orthogonal shaft type geared motor shown in (1) in FIG. Can do.

  Further, since the geared motor can be configured only by the motor 400 and the orthogonal gear head 100, the motor 400 and the orthogonal gear head 100 are connected and integrated, whereby the power of the motor 400 is orthogonally converted and output (2 in FIG. 6). The orthogonal shaft type geared motor shown in FIG.

  Furthermore, as described above, since the engagement on the mounting surface F1 of the motor 400 and the orthogonal gear head 100 and the engagement on the mounting surface F2 of the orthogonal gear head 100 and the parallel gear head 200 are the same, the parallel gear head 200 passes through the orthogonal gear head 100. The gear 400 can be directly attached to the motor 400, and a geared motor can be configured only by the motor 400 and the parallel gear head 200. Therefore, it is also possible to provide a parallel shaft type geared motor shown in (3) in FIG. 6 that decelerates the rotation of the motor 400 and outputs it in parallel.

  FIG. 7 shows a configuration of the orthogonal conversion mechanism 104 of the orthogonal gear head 100. A geared motor that can select at least two of bevel gears, worm gears, and hypoid gears (in this example, bevel gears and hypoid gears). This is a series example, and the user can select a gear structure according to cost and usage, and can respond widely to user needs.

  As shown in FIG. 8, a series of geared motors in which a front-stage parallel shaft reduction mechanism 600 is further provided between the output shaft 402 of the motor 400 and the orthogonal transformation mechanism 104 of the orthogonal gear head 100 may be used. Even in this case, since the motor 400 is separable from the preceding-stage parallel shaft reduction mechanism 600, the above-described effects can be enjoyed as they are, and in this case, the reduction ratio is set at the portion of the attached preceding-stage parallel axis reduction mechanism 600. It can be set freely.

  Furthermore, the selection / combination of the above-described reduction gears and motors may not be supported by all models belonging to a specific specific series of geared motors. That is, in some models belonging to the specific series, it is only necessary that the selection / combination of the reduction gear and the motor (or the possibility of the combination) has the configuration according to the present invention.

The side sectional view of the geared motor concerning an example of the embodiment of the present invention. Sectional view along the II-II line of the parallel gear head in FIG. Sectional view along line III-III in FIG. Schematic showing examples of combinations of geared motors Side sectional view of a parallel gear head that uses a hollow shaft as the output shaft. Schematic diagram of geared motor series Schematic diagram of a series of geared motors with multiple orthogonal transformation mechanisms for orthogonal gear heads Schematic diagram of a series of geared motors that can include a front-stage parallel shaft reduction mechanism

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Orthogonal gear head 102 ... Intermediate casing 104 ... Orthogonal transformation mechanism 106 ... Intermediate parallel axis reduction mechanism 108 ... Intermediate output shaft 110 ... Intermediate first gear 112 ... Intermediate second gear 114 ... Intermediate third gear 200 ... Parallel gear head 202 ... Output Shaft 204: Rear casing 206 ... First shaft 208 ... Second shaft 210 ... Rear stage first gear 212 ... Rear stage second gear 214 ... Rear stage third gear 216 ... Rear stage fourth gear 218 ... Rear stage fifth gear 300 ... Reduction gear 400 ... Motor 402 ... Motor shaft 500 ... Geared motor 600 ... Previous parallel shaft reduction mechanism

Claims (3)

In a series of reduction gears for geared motors used to form a geared motor having a motor having a helical pinion and a reduction gear,
An orthogonal gear head having a helical gear that can mesh with the helical pinion as its own input gear and having an orthogonal transformation mechanism capable of converting the rotational direction of power input from the motor side into an orthogonal direction, and meshing with the helical pinion Any of the parallel gear heads having a parallel shaft reduction mechanism capable of reducing the power input from the motor side having a possible helical gear as its input gear, and being connectable to the same motor, and A series of gear reducers for geared motors, in which at least one of them is prepared in such a way that it can be exchanged for the same motor. A motor having a helical pinion;
An orthogonal gear head having an orthogonal conversion mechanism that has a helical gear that can mesh with the helical pinion as its own input gear, and that can convert the rotational direction of power input from the motor side into an orthogonal direction, and meshing with the helical pinion At least one of the parallel gear heads having a parallel shaft reduction mechanism capable of reducing the power input from the motor side having a possible helical gear as its input gear,
A series of geared motors, characterized in that multiple types are prepared to be interchangeable for the same motor. A motor having a helical pinion;
An orthogonal gear head including an orthogonal transformation mechanism configured by an orthogonal pinion having an helical gear that can mesh with the helical pinion as an input gear on one end side thereof, and an orthogonal gear that meshes with the orthogonal pinion;
And comprising
The geared motor, wherein the orthogonal gear head and the motor can be independently separated from each other.

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