JP2020016253A - Orthogonal axis gear reducer - Google Patents

Abstract

To provide an orthogonal axis gear reducer in which two output shaft faces are formed in a reducer box body of the orthogonal axis gear reducer, a flange component for mounting with a mating machine is made attachable to and detachable from a reducer main body, the flange component is mountable on the two output shaft faces or a bottom face of the reducer main body, and a detent function hole which is functioned equally to a torque arm is provided on the two output shaft faces.SOLUTION: The present invention relates to an orthogonal axis gear reducer in which two output shaft faces are formed in a reducer box main body 1 of the orthogonal axis gear reducer, projection parts 32and 32are provided on a bottom face of the reducer box main body 1 along the two output shaft faces, and a detent function projection or recess to be engaged with a recess or a projection of a mating machine is selectively provided in the projection parts 32and 32.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an orthogonal shaft gear reducer.

Conventionally, as this kind of orthogonal shaft gear reducer, for example, there is one shown in Patent Document 1.
Patent Document 1 discloses that an output shaft of a quadrature shaft gear box is formed as a hollow hollow shaft through a gear box, and mounting bolt holes of the gear box are arranged at four apexes of a square. Are formed through the gear box. Then, the output shaft is positioned so as to be on the diagonal line connecting the mounting bolt holes and at the same time deviated from the center of the diagonal line, and the two surfaces through which the output shaft and the mounting bolt holes penetrate can be mounted together. There is disclosed a motor-equipped orthogonal gear device having a surface.
Further, at least a part of one surface of the orthogonal shaft gear box on a side remote from the output shaft is formed thick, and a tap hole for making one surface attachable is formed in the thick part. A featured orthogonal gear device with a motor is also disclosed.

JP-A-6-54483

However, in such a conventional orthogonal shaft gear reducer, in order to mount the output shaft and the surface through which the mounting bolt holes are penetrated to the mating machine with the mounting bolt holes of the gear box penetrating the gear box, A long bolt is needed to penetrate the gear box and the mounting surface of the mating machine.
Further, in the case of a hollow shaft type orthogonal gear device, mounting on a mating machine by a torque arm (mounting on a shaft) is performed more often than mounting on a mating machine with the mounting bolt holes as described above (flange mounting). In the case of Patent Document 1, a torque arm must be prepared as a separate part.

  The present invention has been made in view of such a conventional problem, and has two output shaft surfaces formed on a reducer box body of an orthogonal shaft gear reducer to reduce a flange part for mounting with a counterpart machine. It can be attached to and detached from the machine body, and flange parts can be attached to either of the two output shaft surfaces or the bottom surface of the speed reducer body. An object of the present invention is to provide an orthogonal shaft gear reducer that can solve the above-described problem by providing a hole for a rotation preventing function.

In order to solve the above problems, the present invention forms two output shaft surfaces on a speed reducer box main body of an orthogonal shaft gear reducer, and projects on the bottom surface of the speed reducer box main body along the two output shaft surfaces. And a protrusion or a recess for a detent function that engages with a recess or a protrusion of a mating machine is selectively provided on these protrusions.
Further, in the present invention, a detachable flange part for attaching to a counterpart machine is selectively attached to an output shaft surface or a bottom surface of the speed reducer box main body.
Further, the present invention resides in that the flange component is provided with a concave portion into which a projection provided on an output shaft surface or a bottom surface of the speed reducer box main body is inserted.
Still further, in the present invention, the concave portion provided in the flange component is formed in a shape capable of storing a convex portion on the output shaft surface of the speed reducer box main body or a protrusion provided on the bottom surface of the speed reducer box main body. Is to be.

Two output shaft surfaces are formed on the reduction gear box main body of the orthogonal shaft gear reducer, and projections are provided on the bottom surface of the reduction gear box main body along the two output shaft surfaces. Alternatively, since the protrusion or the recess for the rotation preventing function that engages with the protrusion is selectively provided, the rotation can be prevented when assembled to the counterpart machine.
Further, in the present invention, since the detachable flange part for attaching to the partner machine is selectively attached to the output shaft surface or the bottom surface of the speed reducer box main body, it is attached to the partner machine by the flange part based on the user's request. be able to.
Further, in the present invention, the flange component is provided with a concave portion in which a projection provided on the output shaft surface or the bottom surface of the speed reducer box main body is provided, so that it can respond to a mounting method required by a user. A variety of mounting forms can be realized with the optimal number of models and the minimum number of mold parts. In the case of flange mounting, it can be mounted to the partner machine with short bolts. Furthermore, when the hollow output shaft is mounted on the shaft, there is no need to prepare a torque arm as a separate component as in the related art.
Still further, in the present invention, the concave portion provided in the flange component is formed in a shape capable of storing a convex portion on the output shaft surface of the speed reducer box main body or a protrusion provided on the bottom surface of the speed reducer box main body. Therefore, it can be attached to either of the two output shaft surfaces.

1A and 1B are cross-sectional views of an orthogonal shaft gear reducer according to an embodiment of the present invention, in which FIG. 1A is a longitudinal sectional view of the orthogonal shaft gear reducer, and FIG. FIG. 2A shows an embodiment in which the orthogonal shaft gear reducer of the present invention is attached to a counterpart machine by a flange part, and FIG. 2A is a cross-sectional view when a solid output shaft is directed rightward, and FIG. Is a cross-sectional view when the solid output shaft is directed leftward, and (c) shows an embodiment in which a flange part is mounted on the bottom surface of the orthogonal shaft gear reducer shown in FIG. It is sectional drawing. It is a perspective view which shows the orthogonal axis | shaft reduction gear box and flange part by embodiment of this invention shown in FIG. FIG. 4A is a perspective view of the orthogonal axis speed reducer box of FIG. 3 as viewed obliquely from below, and FIG. 4B is a side view of FIG. (A) is a perspective view showing a method of attaching a detent pin to the detent function hole of the orthogonal axis speed reducer box shown in FIG. 4 (a), and (b) is a perspective view showing the detent pin shown in FIG. 5 (a). FIG. 5C is a perspective view showing an attached state, FIG. 5C is a front view of FIG. 5B, and FIG. 5D is a side view showing a state where the orthogonal axis speed reducer box of FIG. FIG. 7A is a perspective view illustrating a method of attaching a flange component to the left side surface of the orthogonal axis speed reducer box, and FIG. 6B is a perspective view illustrating a state where the flange component is attached to the orthogonal axis speed reducer box of FIG. FIG. 7A is a perspective view showing a method of attaching a flange component to the right side surface of the orthogonal shaft reducer box, and FIG. 7B is a perspective view showing a state where the flange component is attached to the orthogonal shaft reducer box of FIG. It is a perspective view which shows the cover attached to the side which does not attach a flange part of the orthogonal axis speed reducer box of FIG. 6 (a). 9A is a perspective view showing a method of attaching a flange component to the bottom surface of the orthogonal axis speed reducer box, FIG. 9B is a perspective view showing a state where the flange component is attached to the orthogonal axis speed reducer box of FIG. 9B is a front view of FIG. 9B, and FIG. 9D is a bottom view of FIG. 9C. FIG. 10 is a perspective view showing a state in which the orthogonal shaft reducer box shown in FIG. 9 is attached with a flange part on the floor surface of a mating machine, and an additional shaft of the mating machine is attached to a hollow shaft. (A) is a perspective view showing the mounting of a flange component when the solid output shaft is extended to the left side of the orthogonal shaft speed reducer box, and (b) is a flange when the solid output shaft is extended to the right side of the orthogonal shaft speed reducer box. It is a perspective view which shows attachment of a component. (A) is a perspective view showing a state where flange parts are attached to the left side of the orthogonal shaft reducer box when the solid output shaft is put out on both sides of the orthogonal shaft reducer box, and (b) is a solid shaft with the orthogonal output shaft reduced. It is a perspective view showing the state where a flange part was attached to the right-hand side of a perpendicular axis reduction gear box when it put out on both sides of a machine box. In the embodiment in which a flange part is attached to the bottom surface of the orthogonal axis speed reducer box, (a) is a perspective view when the solid output shaft is put on the left side of the orthogonal axis speed reducer box, and (b) is a solid output shaft orthogonal to the orthogonal output shaft box. FIG. 7C is a perspective view of a case where the solid output shaft is extended to the right side of the shaft reducer box, and FIG. (A) is a perspective view showing a modification of a projection provided with a hole for a rotation preventing function of the orthogonal shaft reduction gear box, and (b) is a left side view of FIG. 14 (a). (A) is an exploded perspective view showing a modified example of a flange part to be assembled to the orthogonal axis speed reducer box shown in FIG. 14, and (b) is a perspective view of the flange part shown in FIG. 15 (a) assembled to the orthogonal axis speed reducer box. It is. (A) is a perspective view showing a method of assembling the flange part shown in FIG. 15 (a) to the bottom surface of the orthogonal axis speed reducer box shown in FIG. 14, and (b) is an orthogonal axis speed reduction shown in FIG. 16 (a). It is a bottom view of a machine box. It is a perspective view which shows the modification of the convex part provided in the orthogonal axis speed reducer box.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings shown in FIGS.
FIG. 1 shows an orthogonal shaft gear reducer. 1A is a longitudinal sectional view of the orthogonal shaft gear reducer, and FIG. 1B is a sectional view taken along line AA of FIG. 1A.
1 (a) and 1 (b), reference numeral 1 denotes an orthogonal shaft speed reducer box of an orthogonal shaft gear reducer. The orthogonal shaft speed reducer box 1 is connected to a flange 2a of an electric motor 2 by stamping. Inside the orthogonal shaft reducer box 1, an intermediate shaft 5 whose both ends are supported by bearings 3 and 4 is disposed. By adopting a seal bearing for the bearing 3 among the bearings 3 and 4, the inside of the orthogonal shaft reduction gear box 1 is partitioned into a sealed chamber 6 and a spur gear storage chamber 7. 1B, an output shaft 10 whose both ends are supported by bearings 8 and 9 is provided inside the sealed chamber 6, and faces the sealed chamber 6 of the output shaft 10. As shown in FIG. 1A, a worm wheel 11 as a second orthogonal gear is attached to the portion. The worm wheel 11 is meshed with a worm 12 which is a first orthogonal gear mounted on the intermediate shaft 5. The bearing 8 is supported by a bearing holder 1a. The bearing holder 1a is sealed in an end recess of the orthogonal shaft speed reducer box 1 with an O-ring 20 interposed therebetween, and is fixed to the orthogonal shaft speed reducer box 1. ing. At both ends of the output shaft 10, oil seals 19 supported on the inner peripheral surface of the bearing holder 1a are assembled. The bearing 9 is mounted together with an oil seal 19 on the inner wall surface of the orthogonal shaft reducer box 1. Reference numeral 21 denotes a blind lid for closing the open end surface of the sealed chamber 6 in which the intermediate shaft 5 is provided.

  On the other hand, inside the spur gear storage chamber 7, another intermediate shaft 15 whose both ends are supported by bearings 13 and 14 is disposed, and the intermediate shaft 15 has two spur gears 16 and 17 is attached. A spur gear 18 is attached to a portion 5a of the intermediate shaft 5 protruding into the spur gear storage chamber 7, and the spur gear 18 meshes with one spur gear 16 of the intermediate shaft 15. . The other spur gear 17 is meshed with the rotating shaft 2 b of the electric motor 2.

  The output shaft 10 of the orthogonal shaft gear reducer is a hollow output shaft (hollow shaft) 10a that penetrates the orthogonal shaft reducer box 1. In FIG. 1B, the hollow output shaft (hollow shaft) 10a is either left or right. Can be attached to the load shaft of the counterpart machine (not shown).

The operation of the orthogonal shaft gear reducer will be briefly described.
When the rotating shaft 2b of the electric motor 2 rotates, the spur gear 17 meshing with the rotating shaft 2b rotates, and the intermediate shaft 15 supporting the spur gear 17 rotates. Then, the spur gear 16 rotates with the rotation of the intermediate shaft 15. The rotation of the spur gear 16 causes the spur gear 18 meshing with the spur gear 16 to rotate, and the intermediate shaft 5 to rotate. As the intermediate shaft 5 rotates, the worm 12 rotates, causing the worm wheel 11 to rotate. With the rotation of the worm wheel 11, the output shaft 10 of the orthogonal shaft gear reducer rotates in the direction orthogonal to the rotation shaft 2b of the electric motor 2.

Next, FIGS. 2A and 2B are diagrams when the output shaft 10 is a solid output shaft 10b. 1A and 1B are denoted by the same reference numerals. The operation is the same as the operation shown in FIG.
By mounting the flange component 30 on the flange mounting surface 31 of the orthogonal shaft reduction gear box 1, it is possible to mount the flange on the mating machine (not shown) via the flange component 30.
2 (a) and 2 (b), the flange component 30 can be attached to either the left or right side of the output shaft surface of the orthogonal shaft reduction gear box 1. Therefore, as shown in FIG. 2 can be applied to the right output or the left output from the solid output shaft 10b as shown in FIG. 2B. In addition, as shown in FIGS. 1A and 1B, the same mounting method can be used when mounting the flange on the hollow output shaft 10a.
FIG. 2 (c) shows that the same flange part 30 as the above-described flange mounting is mounted on the bottom surface of the orthogonal axis speed reducer box 1 and floor mounting (leg mounting) is possible. FIG. 2C shows the hollow output shaft 10a, but a solid output shaft 10b can also be used.

  As shown in FIG. 1, FIG. 2 and FIG. 3, the technical feature of the present invention is that two output shaft surfaces are formed on the orthogonal shaft reducer box 1 of the orthogonal shaft gear reducer, and flange parts are formed on the two output shaft surfaces. 30 can be removably mounted. In this manner, flange mounting can be performed by mounting the flange component 30 on either side of the output shaft surface, and floor mounting (leg mounting) is enabled by mounting the same flange component 30 on the bottom surface of the reduction gear box 1. It is in. In addition, holes 32a and 32b for a detent function, which have a function equivalent to that of a torque arm, are provided on two surfaces of the output shaft of the reduction gear box 1 to enable mounting on the shaft.

Next, with respect to the details of the mounting structure of the orthogonal shaft gear reducer, the mounting structure of the hollow output shaft (hollow shaft) type orthogonal shaft gear reducer shown in FIGS. 4 to 10 will be described in detail with reference to the drawings.
In these figures, the same parts as those in FIGS. 1 to 3 are denoted by the same reference numerals, and the description of the same parts will be omitted. Power can be transmitted by the same operation as the operation described with reference to FIGS. 1 and 2.

<About the hollow output shaft (hollow shaft) type shaft mounting>
FIGS. 4 (a) and 4 (b) and FIGS. 5 (a) to 5 (d) show a hollow output shaft type orthogonal shaft gear reducer.
The hollow output shaft 10a is provided to penetrate the orthogonal shaft gear reducer box 1.
As shown in FIG. 4 (a), detent features holes 32a, 32b are on the bottom of the orthogonal axis gear speed reducer box 1, the wall portion ₃₂ 1, 32 ₂ which is vertically projected, a hollow output shaft 10a They are provided in the same direction. The wall portion 32 _1, 32 ₂ which was provided vertically along the sides orthogonal axis left and right wall surfaces of the gear reducer box 1 of the hollow output shaft 10a, the wall portion 32 _1, 32 ₂ of the right and left, around The stop function holes 32a and 32b are provided so as to be offset from each other in the axial direction of the motor, that is, in the front-rear direction of the speed reducer box 1 in side view. The left and right wall portions 32 _1, 32 ₂ mutual bottom surface of the orthogonal axis gear speed reducer box 1, is projected downward, are connected to each other by a hollow output shaft 10a and the protruding portion 33 substantially is extended in the same direction ing. A wall portion ₃₂ 1, 32 ₂ of the right and left, are configured in a substantially hook shape at the left and right wall portions ₃₂ 1, 32 ₂ projecting portions 33 for connecting the other.

Thus, detent features holes 32a, 32b are on the bottom of the orthogonal axis gear speed reducer box 1, the wall portion 32 _1, 32 ₂ which is vertically projected, is provided in the hollow output shaft 10a in the same direction I have. The wall portion 32 _1, 32 ₂ are vertically along opposite sides orthogonal axis left and right wall surfaces of the gear reducer box 1 of the hollow output shaft 10a, the wall portion 32 _1, 32 ₂ of the left and right holes detent feature 32a and 32b are symmetrically provided so as to be offset from each other in the front-rear direction when viewed from the side.
The left and right wall portions ₃₂ 1, 32 ₂ in the detent feature holes 32a, by providing the 32b, can be attached on either side of the both sides in the axial direction of the hollow output shaft 10a. At the time of axial mounting, there is no need to mount the flange component 30.
Detent feature holes 32a, 32b are parallel to the hollow output shaft 10a to the bottom surface of the orthogonal reduction gear box 1, and the wall portion 32 1 to the bottom surface of the hollow output shaft 10a and orthogonal reduction gear box 1 is perpendicular _position, 32 because ₂ is formed by connecting in protrusions 33, the output on each axial face, detent features holes 32a, 32b of the wall portion 32 _1, 32 orthogonal axis than the axial center of the _second hollow output shaft 10a The gear reducer box 1 is formed at a position offset forward and backward in the axial direction.
Wall portion ₃₂ 1, 32 ₂ into the formed detent feature holes 32a, 32b are in terms of strength against the output torque of the hollow output shaft 10a has a sufficient distant, also, FIG. 4 (b) as the X, since the offset position of the holes 32a, 32b, detent features holes 32a, penetration depth and 32b has a thickness of the wall portion ₃₂ 1, 32 _2, the thickness of the mounting portion The shape is such that a short screw can be used.
In the present application, the wall portion 32 1 of the orthogonal axis reduction gear box _1, 32 ₂ in the detent feature hole 32a, because 32b is formed, without providing the torque arm as separate parts, it is possible to axial mounting .

Next, the on-axis mounting in which the anti-rotation pin 34 is attached to the anti-rotation function holes 32a and 32b and the hollow output shaft 10a of the orthogonal shaft gear reducer is directly attached to the load shaft of the counterpart machine is shown in FIG. This will be described with reference to FIG.
5 (a) is, the wall portion ₃₂ of the orthogonal axis reduction gear box 1 1, 32 ₂ around provided prevention function hole 32a, to 32b, to secure the locking pin 34 in locking pin securing bolt 35 It indicates that 5 (b) is a diagram detent pin 34, the wall portion ₃₂ 1 of the orthogonal axis reduction gear box 1, 32 ₂ detent feature holes 32a provided on and fixed to 32b. FIG. 5C is a side view thereof. FIG. 5D shows an example of assembling with a partner machine (conveyor).

As shown in FIG. 5A, the detent pin 34 is formed by projecting a shaft portion 34b from an L-shaped plate 34a, and a screw hole (not shown) is formed in the plate 34a and the shaft portion 34b. Have been.
In the above example, the detent pin 34 is fixed to the detent function hole 32a of the orthogonal shaft reduction gear box 1 with the detent pin fixing bolt 35, and as shown in FIG. A non-rotating pin insertion hole 51a is provided in the mounting portion 51 of the machine 50, the non-rotating pin 34 is inserted into the non-rotating pin insertion hole 51a and assembled, and the load shaft 52 of the mating machine 50 is connected to the hollow output shaft 10a. , Can transmit rotation.
In this case, a detent pin may be attached to the counterpart machine 50, and the detent pin may be inserted into the detent pins 32a, 32b of the orthogonal shaft reducer box 1.
Further, the above example is an example of assembling when the hollow rotary shaft 10a rotates in one direction. In the case where the rotation direction is frequently forward and reverse rotation, the rotation-preventing holes 32a and 32b of the orthogonal shaft reduction gear box 1 and the mounting portion 51 of the counterpart machine 50 are connected with bolts and nuts via a collar or the like. It can also be fastened.

<Hollow output shaft (hollow shaft) type flange mounting>
FIGS. 6, 7, and 8 show the mounting of a flange of a hollow output shaft type orthogonal shaft gear reducer.
As described above, in the case of the hollow shaft (hollow shaft) type, the load shaft of the mating machine is directly mounted on the hollow output shaft 10a which is the output shaft 10 of the orthogonal shaft gear reducer. Alternatively, the orthogonal shaft reducer box 1 can be fixed by a bolt with a mating machine and bolts.
In the present invention, by mounting the flange part 30 on the flange mounting surface 31 of the orthogonal shaft reduction gear box 1, it is possible to cope with flange mounting.

As shown in FIGS. 6 (a) (b) and 7 (a) (b), the hollow output shaft 10a penetrates the orthogonal shaft reducer box 1, and the flange mounting surfaces 31a, 31b are formed on both surfaces. Therefore, the flange component 30 can be attached to either side in the axial direction. That is, in the flange mounting, the flange component 30 is mounted on either side, and the right and left mounting directions of the orthogonal shaft speed reducer box 1 with respect to the other machine can be selected.
As shown in FIGS. 6A, 6B and 7A, 7B, the flange mounting surfaces 31a, 31b of the orthogonal shaft reduction gear box 1 are concentric so as to cover the outer periphery of the hollow output shaft 10a. Cylindrical convex portions 43a and 43b are formed. Further, three or more screw holes 41a and 41b for mounting the flange component 30 are formed.

  The flange component 30 has a rectangular shape and fits with the cylindrical convex portions 43a and 43b of the flange mounting surfaces 31a and 31b, and has a hollow portion for accommodating the convex portion 33 of the orthogonal shaft reduction gear box 1 at the time of floor mounting described later. A recess 44 is formed. Further, three or more bolt holes 42 to be attached to the screw holes 41a, 41b of the flange attachment surfaces 31a, 31b are provided at three or more locations on the peripheral edge of the hollow recess 44, and attachment holes 45 for attaching to the mating machine are provided at four corners of the flange component 30. At least four portions are formed. The hollow concave portion 44 is formed in an opening that can accommodate the convex portion 33.

As shown in FIGS. 6A and 6B, the convex portion 43a of the flange mounting surface 31a is fitted with the hollow circular portion of the concave portion (hole) 44 of the flange component 30, and the bolt is inserted into the screw hole 41a of the flange mounting surface 31a. The flange component 30 is fastened to the orthogonal shaft speed reducer box 1 by fixing 40 through the bolt hole 42 of the flange component 30.
The orthogonal shaft speed reducer box 1 is mounted on a mating machine using bolts (not shown) in mounting holes 45 provided at four corners of the flange part 30. At this time, since the mounting hole 45 of the flange component 30 is a through hole in the thickness direction of the flange component 30, it can be mounted on a counterpart machine using a short bolt (not shown).

FIG. 7 shows an example of a case of attaching to the output shaft on the opposite side to FIG. The convex portion 43b and the screw hole 41b are formed on the flange mounting surface 31b, and the flange component 30 can be mounted on the flange mounting surface 31b as described above. Thereby, the orthogonal axis speed reducer box 1 can be attached to the other machine on the opposite side from the case of FIG.
Further, as shown in FIG. 8, when the convex portion (43a) 43b of the flange mounting surface (31a) 31b is not used as the output side, the safety cover 46 is provided so as not to expose the driving portion of the hollow output shaft 10a. It can also be worn.

<Hollow output shaft type floor mounting (leg mounting)>
9 (a) to 9 (d) and FIG. 10 show floor mounting of a hollow output shaft type orthogonal shaft gear reducer.
Figure 4 (a) (b) as described in, detent features holes 32a, 32b are on the bottom of the orthogonal axis gear speed reducer box 1, the wall portion ₃₂ 1, 32 ₂ which is vertically projected, hollow It is provided in the same direction as the output shaft 10a. The wall portion 32 _1, 32 ₂ are vertically along opposite sides orthogonal axis left and right wall surfaces of the gear reducer box 1 of the hollow output shaft 10a, the wall portion 32 _1, 32 ₂ of the left and right holes detent feature 32a and 32b are symmetrically provided so as to be offset from each other in the front-rear direction when viewed from the side. It is configured in a substantially hook as viewed from the bottom in this wall portion ₃₂ 1, 32 ₂ projecting portion 33 for connecting the wall portions ₃₂ 1, 32 ₂ mutually horizontally.
By mounting the flange part 30 used for mounting the flange of the orthogonal shaft speed reducer box 1 described with reference to FIG. 3 on the bottom surface of the orthogonal shaft speed reducer box 1, floor mounting (leg mounting) can be supported.
As described above, the concave portion 44 of the flange component 30 is fitted with the cylindrical convex portion 43 formed on the flange attachment portion 31, and the wall portion 32 ₁ , formed on the bottom surface of the orthogonal shaft speed reducer box ₁ , 32 ₂ and the inner peripheral surface shape of the recess 44 so that it can accommodate the protruding portion 33 is formed.
Further, at the bottom of the orthogonal shaft reduction gear box 1, three or more screw holes 47 for mounting the flange component 30 are formed.
As shown in FIG. 9 (a), screwed the recess 44 of the flange part 30, the wall portion ₃₂ 1 of the bottom of the orthogonal axis reduction gear box 1, 32 fit the ₂ and the protrusions 33, the bolt 40 into the screw holes 47 Then, the flange component 30 is fastened.
FIG. 9B is a perspective view in which the flange component 30 is attached to the bottom surface of the orthogonal shaft reduction gear box 1, and FIG. 9C is a side view. The orthogonal axis speed reducer box 1 is mounted on a mating machine using bolts (not shown) in mounting holes 45 provided at four corners of the flange part 30. At this time, since the mounting hole 45 of the flange component 30 is a through hole in the thickness direction of the flange component 30, it can be mounted on the counterpart machine using a short bolt.
FIG. 9D shows a view from the bottom of the orthogonal axis speed reducer box 1. It has been shown that housed the bottom of the wall portion 32 _1, 32 ₂ and the protrusions 33 of the flange part orthogonal axis reduction gear box 1 into the recess 44 of the 30.
FIG. 10 shows an example in which legs 61 are attached to the floor 60 of a mating machine. Depending on the height of the load shaft 62 of the counterpart machine, the flange component 30 may be directly attached to the floor of the counterpart machine without using the legs 61.

<Solid output shaft type>
FIGS. 11, 12, and 13 show the mounting of the flange and the floor of the solid output shaft type orthogonal shaft gear reducer shown in FIG.
In the above-described orthogonal shaft gear reducer, the case where the output shaft 10 is the hollow output shaft 10a has been described. However, for the flange mounting and the floor mounting (leg mounting), the output shaft 10 can be applied to the solid shaft output shaft 10b. it can.
As shown in FIG. 11, even when the solid output shaft 10b is put out on either side of the flange mounting surfaces 31a and 31b, it can be dealt with only by replacing the flange component 30. In addition, as shown in FIG. 12, if the solid output shaft 10b is provided on both sides, the mounting of either side can be handled by one orthogonal shaft gear reducer only by replacing the flange part 30.
FIG. 13 shows a case of floor mounting (leg mounting). The attachment of the flange component 30 and the attachment to the counterpart machine are the same as those of the hollow output shaft 10a described above.

14 to 17 show other embodiments, in which the same parts as those in FIGS. 3 to 9 are denoted by the same reference numerals, and the description of the same parts will be omitted.
The hole for the detent function in the above example is formed with a convex portion 32 at a position parallel to the hollow output shaft 10a on the bottom surface of the orthogonal speed reducer box 1 and at a position where the hollow output shaft 10a and the bottom surface of the orthogonal speed reducer box 1 are perpendicular. Although the holes 32a and 32b for the anti-rotation function are formed on each of the output shaft surfaces of the projections 32, the projections 132 ₁ and 132 ₂ are provided on the bottom surfaces of the output shaft surfaces, respectively. The holes 132a and 132b may be formed. (132 ₂ )
As shown in FIG. 14 (a), each of the output shaft side of the bottom surface of the orthogonal reduction gear box 1, the convex portions ₁₃₂ 1, 132 ₂ is provided, on each of the convex portions ₁₃₂ 1, 132 _2, holes for detent feature 132a and 132b are formed. In FIG. 14 (b), a convex portion 132 ₁ (132 ₂ ) is provided at the center of the bottom surface of the output shaft surface, and a detent function hole 132a is formed at the central portion of the convex portion 132 ₁ (132 ₂ ). The anti-rotation function hole 132a may be formed at an offset position (a position deviated from the center), or the convex portion 132 ₁ (132 ₂ ) may be provided at a position deviated from the center of the bottom surface of the output shaft surface. Is also good.
As shown in FIGS. 15 (a) and 15 (b), the flange part 130 at the time of flange mounting has a hollow concave part 144a which is rectangular and fits with the cylindrical convex parts 43a, 43b of the flange mounting surfaces 31a, 31b. At the time of floor mounting, a hollow recess 144b that fits with the projections 132 ₁ and 132 ₂ of the orthogonal shaft reduction gear box 1 is formed.
The attachment of the flange component 130 to the flange attachment surface 31a or 31b is the same as in the above example, as shown in FIG.

An example in which the above-described flange component 130 used for the flange mounting of the orthogonal axis speed reducer box 1 is mounted on the bottom surface of the orthogonal axis speed reducer box 1 and is also compatible with floor mounting (leg mounting) is the same as FIG. 14 and FIG. Are shown in FIG. 16 (a), which are denoted by the same reference numerals and description of the same parts is omitted.
FIG. 16B is a view seen from the bottom surface where the flange component 130 is attached. In this case, hollow assembly protrusions 132 ₂ orthogonal axes reducer box 1 into the recess 144a of the flange part 130, by assembling protrusion 132 _first flange part hollow recess 144b orthogonal axis reduction gear box 1 to 130, the flange part 130 is assembled to the orthogonal axis speed reducer box 1. Then, the bolt 40 is screwed into the screw hole 47 to fasten the flange component 130 to the orthogonal shaft reduction gear box 1.

Further, in the above example, the projections 132 ₁ and 132 ₂ are provided on the bottom surface of the orthogonal speed reducer box 1. However, as shown in FIG. 17, the projection 132 is attached to the output shaft surface on which the bearing holder 1 b is mounted. ₃ may be formed on the bearing holder 1b.

As described above, according to the above embodiment, the following effects can be obtained.
Two output shaft surfaces are formed on the reduction gear box main body of the orthogonal shaft gear reducer, and projections are provided on the bottom surface of the reduction gear box main body along the two output shaft surfaces. Alternatively, since the protrusion or the recess for the rotation preventing function that engages with the protrusion is selectively provided, the rotation can be prevented when assembled to the counterpart machine.
Further, in the present invention, since the detachable flange part for attaching to the partner machine is selectively attached to the output shaft surface or the bottom surface of the speed reducer box main body, it is attached to the partner machine by the flange part based on the user's request. be able to.
Further, in the present invention, the flange component is provided with a concave portion in which a projection provided on the output shaft surface or the bottom surface of the speed reducer box main body is provided, so that it can respond to a mounting method required by a user. A variety of mounting forms can be realized with the optimal number of models and the minimum number of mold parts. In the case of flange mounting, it can be mounted to the partner machine with short bolts. Furthermore, when the hollow output shaft is mounted on the shaft, there is no need to prepare a torque arm as a separate component as in the related art.
Still further, in the present invention, the concave portion provided in the flange component is formed in a shape capable of storing a convex portion on the output shaft surface of the speed reducer box main body or a protrusion provided on the bottom surface of the speed reducer box main body. Therefore, it can be attached to either of the two output shaft surfaces.

  The present invention is not limited to the above embodiment. For example, the shape of the flange parts 30 and 130 has been described as being square, but the shape of the flange mounting surfaces 31a and 31b of the orthogonal speed reducer box 1 is described. Various shapes can be applied according to the conditions. Also, the shapes of the concave portion 44 of the flange component 30, the hollow concave portion 144a of the flange component 130, and the hollow concave portion 144b of the flange component 130 can be appropriately modified and used. Further, in the above-described embodiment, the worm gear has been described as the orthogonal shaft gear reducer, but other orthogonal shaft gears such as a screw gear, a bevel gear, a hypoid gear, and a face gear may be employed. For example, the present invention can be implemented by appropriately changing the technical scope of the present invention without changing the technical scope.

DESCRIPTION OF SYMBOLS 1 Orthogonal shaft reduction gear box 2 Electric motor 2b Rotary shaft 3,4,8,9 Bearing 5 Intermediate shaft 6 Sealed room 7 Spur gear storage room 10 Output shaft 10a Hollow output shaft 10b Solid output shaft 11 Worm wheel 12 Worm 15 Intermediate shaft 16 , 17, 18 spur gear 30 flange parts 31, 31a, 31b flange mounting surface 32 _1, 32 ₂ wall surface portion (protrusion)
32a, 32b Hole for detent function 33 Projection part 34 Detent pin 35 Detent pin fixing bolt 40 Bolt 41a, 41b Screw hole 42 Bolt hole 43a, 43b Convex part 44 Recess 45 Mounting hole

Claims (4)

  Two output shaft surfaces are formed on the reduction gear box main body of the orthogonal shaft gear reducer, and projections are provided on the bottom surface of the reduction gear box main body along the two output shaft surfaces. Alternatively, the orthogonal shaft gear reducer, wherein a convex portion or a concave portion for a detent function that engages with the convex portion is selectively provided.   2. The orthogonal shaft gear reducer according to claim 1, wherein a detachable flange part for attaching to a counterpart machine is selectively attached to an output shaft surface or a bottom surface of the reducer box main body. 3.   The orthogonal shaft gear reducer according to claim 2, wherein the flange component is provided with a concave portion provided with a protrusion provided on an output shaft surface or a bottom surface of the speed reducer box main body. The concave part provided in the flange part is formed in a shape capable of storing a convex part on the output shaft surface of the speed reducer box main body or a protrusion provided on the bottom surface of the speed reducer box main body. The orthogonal shaft gear reducer according to claim 3.