JPH0870556A - Motor device with reduction gear - Google Patents

Abstract

(57) [Summary] (Correction) [Objective] To provide a motor device with a reducer equipped with a plurality of rotors capable of simultaneously rotating at the same speed. [Structure] The main disk 20 is fixed to the reduction gear assembly 11 in such a manner that the center gear 21 passes through the center hole 21 of the main disk 20. It is fixed. These through-medium diameter holes are matched with the medium diameter holes 23 of the main disk. At least 2
Each set of planetary gear assemblies has a shaft 31
And a planetary gear 32 connected around the shaft.
And a first bearing 33 and a second bearing 34 near the planetary gear around the shaft. The first bearing and the second bearing are rotatably housed in the corresponding through-holes of the cover and in the holes of the main disc, respectively, and the shaft of each planetary gear assembly corresponds to that of the cover. It extends from the through-medium diameter hole.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor device with a speed reducer, and more particularly to a motor device with a speed reducer equipped with a plurality of rotors that rotate simultaneously at the same speed.

[0002]

Motors with reduction gears are commonly used in the industrial world, particularly in the field of transmitting mechanical forces.

However, the motor with a reducer used at the present time usually uses only one rotor during operation, and is not satisfactory in terms of work efficiency. For this reason, there is a demand for a motor with a reduction gear that includes a plurality of rotors that can rotate simultaneously.

In view of the above situation, an object of the present invention is to provide a motor device with a reduction gear provided with a plurality of rotors that can simultaneously rotate at the same speed.

[0005]

In the present invention, a motor and
A reduction gear assembly having an output shaft coupled to the motor and driven by the motor; a center gear connected to the output shaft of the reduction gear assembly; and a space extending therein from a peripheral portion. The reduction gear has an annular wall that defines a central hole, a central hole formed in a central portion, and a plurality of medium-diameter holes formed around the central hole, and the center gear passes through the central hole. A main disk fixed to the assembly, a cover fixed to the main disk and having a through-medium diameter hole at a portion corresponding to the medium-diameter hole of the main disk, each shaft, A planetary gear connected to the periphery of the shaft, and a first gear connected to a portion of the periphery of the shaft near the planetary gear.
Bearing and second bearing, each first
At least two sets of bearings and second bearings are rotatably housed in corresponding through-medium diameter holes of the cover and medium diameter holes of the main disk, and each planetary gear is meshed with the center gear. A planetary gear assembly is provided to constitute a motor device with a reduction gear, and the shaft of each planetary gear assembly is extended from a corresponding through-medium diameter hole of the cover, and the shaft is provided with the reduction gear assembly. The motor is driven via the center gear.

[0006]

According to the above construction, when the motor is rotated, the rotational force appropriately decelerated is output to the output shaft through the reduction gear assembly, and the rotation of the output shaft is transmitted to the center gear and the center gear, respectively. It is transmitted to the shafts of a plurality of planetary gear assemblies via meshing planetary gears.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings showing an embodiment. Referring to FIG. 1, a motor device with a reducer according to the present invention includes a motor 10 and a reduction gear assembly 1 meshed with a rotor (not shown) of the motor 10.
1 and a speed adjusting disk 12 connected to the reduction gear assembly 11. The speed adjusting disk 12 is used for adjusting the speed reduction ratio of the motor device with a speed reducer. A center gear 13 is connected to the output shaft 101 of the reduction gear assembly 11. Further, the reduction gear assembly 11 includes the output shaft 1
Four small holes 110 are opened around 01. The reduction gear assembly 11 is used to reduce the speed of the motor 10. However, the reduction gear assembly 11 is not described in detail because it is commercially useful and is well known.

The main disk 20 has an annular wall 201 extending from the peripheral edge thereof, and defines a space therein. Briefly, the main disc 20 has a substantially U-shaped cross section. A central hole 21 is formed in the central portion of the main disk 20, and six medium diameter holes 23 and four small diameter holes 22 are formed around the central hole 21.
Is formed, and further four small holes 24 are formed on the upper surface of the annular wall 201. These four small holes 22
Are the four small holes 1 of the reduction gear assembly 11 described above.
10, the main disk 20 is coupled to the reduction gear assembly 11 by fastening bolts (not shown) to the corresponding small diameter holes 22 and small holes 110, respectively. . A central hole 21 formed in the central portion of the main disc 20 allows the center gear 13 to pass when the main disc 20 is coupled to the reduction gear assembly 11.

The cover 40 is formed with six through medium diameter holes 41 facing the medium diameter holes 23 formed in the main disk 20. The cover 40 has substantially the same size as the main disc 20. The four small holes 42 formed in the cover 40 are arranged to face the small holes 24 formed in the annular wall 201 of the main disc 20, respectively. Each of the plurality of planetary gear assemblies 30 includes a shaft 31, a planetary gear 32 connected to the periphery of the shaft 31, a first bearing 33 and a first bearing 33 connected to the periphery of the shaft 31 near the planetary gear 32. Two bearings 34 are provided. The first bearing 33 of each planetary gear assembly 30 is rotatably housed in the corresponding through-medium diameter hole 41 of the cover 40, and the second bearing 34 of the planetary gear assembly 30 is the main circle. It is rotatably accommodated in the corresponding medium diameter hole 23 of the plate 20, and at this time, the planetary gear 32 of the planetary gear assembly 30.
Passes through the central hole 21 of the main disc 20 and is meshed with the center gear 13 arranged in the central portion of the space defined by the annular wall 201.

In this embodiment, the planetary gear assembly 3
Up to 6 sets of 0 may be provided. For example, referring to FIG. 2, three sets of planetary gear assemblies 30 are provided. Each planetary gear assembly 30 includes a center gear 13
It can be recognized that when the power is transmitted, the motors rotate at the same speed.

Further, referring to FIG. 1, the first bearing 33 of each planetary gear assembly 30, together with the portion of the shaft 31 protruding from the cover 40, covers the cover 40.
Is received and retained in the corresponding through-medium diameter hole 41. The cover 40 is fixed to the main disc 20 by fastening bolts (not shown) through the small holes 42 and the small holes 24. The structure of the motor device with the reduction gear after assembly is shown in FIG. There, when the planetary gear assembly 30 is driven by the center gear 13, the first bearing 3 of each planetary gear assembly 30 is driven.
It is shown that 3 is rotatable in the through bore 41 of the cover 40 and the second bearing 34 of each planetary gear assembly 30 is rotatable in the bore 23 of the main disc 20.

Further, referring to FIGS. 2 and 3, when the motor 10 rotates, the planetary gears 32 of each planetary gear assembly 30 are transmitted by the transmission from the center gear 13 so as to rotate at the same speed. It

Referring to FIG. 4, a plurality of connectors 50 may be connected to corresponding shafts 31 for industrial manufacturing operations such as winding up.

[0014]

As described above, according to the motor device with a reducer according to the present invention, when the motor is rotated, the rotational force appropriately decelerated is output to the output shaft via the reduction gear assembly. Since the rotation of the output shaft is transmitted to the shafts of the plurality of planetary gear assemblies through the center gear and the planetary gears meshing with the center gear, the shafts can be simultaneously rotated at the same speed.

[Brief description of drawings]

FIG. 1 is a perspective view showing a partially disassembled motor device with a reducer according to the present invention.

FIG. 2 is a diagram illustrating a connection relationship between a center gear and a plurality of planetary gears in the motor device with a reducer according to the present invention.

FIG. 3 is a perspective view showing a motor device with a reducer according to the present invention.

FIG. 4 is a perspective view showing a state in which a connecting tool is coupled to each of a plurality of shafts.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Motor 11 ... Reduction gear assembly 12 ... Speed adjustment disc 13 ... Center gear 20 ... Main disc 21 ... Central hole 23 ... Medium diameter hole 30 ... Planetary gear assembly 31 ... Shaft 32 ... Planetary gear 33 ... First Bearing 34 ... 2nd bearing 40 ... Cover 41 ... Penetrating medium diameter hole 101 ... Output shaft 201 ... Annular wall

Claims (2)

[Claims] 1. A motor, a reduction gear assembly including an output shaft coupled to the motor and driven by the motor, a center gear connected to the output shaft of the reduction gear assembly, and a peripheral portion. It has an annular wall extending and defining a space therein, a central hole formed in the central portion, and a plurality of medium diameter holes formed around the central hole. A main disk fixed to the reduction gear assembly in a mode of passing through the main disk, and a through medium-diameter hole fixed to the main disk and corresponding to the medium-diameter hole of the main disk. A cover, a shaft, a planetary gear connected to the periphery of the shaft, a first bearing and a second bearing connected to a portion of the shaft near the planetary gear. , The first bearings and the second bearings are rotatably housed in the corresponding through-holes of the cover and inside of the main disc, respectively, and the planetary gears are meshed with the center gear. At least two sets of planetary gear assemblies, the shafts of each planetary gear assembly extending from corresponding through bores in the cover, the shafts including the reduction gear assembly and the center gear. A motor device with a speed reducer, which is driven by the motor via a motor. 2. The motor device with a reducer according to claim 1, wherein a speed adjusting disk for adjusting a reduction ratio is attached to the reduction gear assembly.