CN111322378A

CN111322378A - Motor speed reducer

Info

Publication number: CN111322378A
Application number: CN201811543258.0A
Authority: CN
Inventors: 胡秋实; 贾兴豪; 魏松涛; 董志江; 郭宏; 赵凯; 钟云岭; 荣双龙
Original assignee: Beijing Huahang Radio Measurement Research Institute
Current assignee: Beijing Huahang Radio Measurement Research Institute
Priority date: 2018-12-17
Filing date: 2018-12-17
Publication date: 2020-06-23

Abstract

The invention discloses a motor reducer which is characterized by comprising a box body, a motor, a gear set, a bearing seat and support legs, wherein the box body is provided with a gear box; the box body is processed into a shaft surface and is matched and assembled with the mechanical arm joint shell; the motor is assembled in the box body; one gear in the gear set is fixed on an output shaft of the motor, and the gears are arranged in a Z shape along the axis of the output shaft of the mechanical arm joint; and a bearing seat is arranged on one side of the box body, and is integrally designed by adopting a structure and a function and is connected with the output shaft of the mechanical arm joint through a bearing. The invention improves the space utilization rate of the motor reducer and adapts to the requirements of underwater mechanical arm joints.

Description

Motor speed reducer

Technical Field

The invention relates to a structural design of a motor reducer assembly, in particular to a structural design of a mechanical arm joint motor reducer assembly.

Background

The existing motor reducer is mostly box-shaped in appearance, each gear inside is also mostly in linear layout, and the space utilization rate is not high. The space of the underwater mechanical arm joint is narrow, and the existing motor reducer cannot meet the requirements of the underwater mechanical arm joint on the built-in and structural function integration of the motor reducer.

Disclosure of Invention

Aiming at the problems, the invention provides the motor reducer, which improves the space utilization rate of the motor reducer and meets the requirements of underwater mechanical arm joints.

The invention relates to a motor reducer which is characterized by comprising a box body, a motor, a gear set, a bearing seat and supporting legs;

the box body is processed into a shaft surface and is matched and assembled with the mechanical arm joint shell;

the motor is assembled in the box body;

one gear in the gear set is fixed on an output shaft of the motor, and the gears are arranged in a Z shape along the axis of the output shaft of the mechanical arm joint;

and a bearing seat is arranged on one side of the box body, and is integrally designed by adopting a structure and a function and is connected with the output shaft of the mechanical arm joint through a bearing.

Further, the mechanical arm joint further comprises a cover plate, wherein the cover plate is processed into a shaft surface and matched with the mechanical arm joint shell.

Furthermore, the bearing seat is characterized in that support legs are uniformly distributed on the periphery of the bearing seat and matched with the inner surface of the mechanical arm joint.

Has the advantages that:

1. the motor reducer shell adopts the structure and function integrated design, and the shell is simultaneously used as a bearing seat of an output shaft of a mechanical arm joint, so that the axial space is saved;

2. the fixed end of the shell of the motor reducer is a circular shaft surface, and the end of the bearing seat is provided with a support, so that the structural rigidity is improved, and the stress deformation is controlled.

3. The gear of the speed reducer adopts a Z-shaped layout, and the occupied space of the axial direction is shortened.

Drawings

FIG. 1 is an isometric view of an embodiment of the invention;

FIG. 2 is an isometric view of an embodiment of the invention;

FIG. 3 is a top view of an embodiment of the present invention with the cover removed;

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and examples.

The invention adopts the following specific scheme:

the embodiment provides a motor reducer, which comprises a cover plate 1, a box body 2, a motor 3, a bearing seat 4, a support leg 5, a first gear 21, a second gear 22, a third gear 23, a fourth gear 24, a fifth gear 25 and a motor gear 26.

The cover plate 1 and the box body 2 are combined and processed into an axial surface for being matched and assembled with the mechanical arm joint shell, and the effects of controlling coaxiality and improving structural rigidity are achieved.

The right side of the box body 2 is provided with a bearing seat 4, the structure and function integrated design is adopted, and the redundant space in the speed reducer box body is used as a bearing seat of an output shaft of a mechanical arm joint; the support legs 5 are uniformly distributed on the periphery of the bearing seat 4 and matched with the inner surface of the mechanical arm joint, so that the deformation of the motor reducer structure caused by loads in the work of the mechanical arm joint is prevented.

In the embodiment, the gear set consists of six gears, the torque output by the motor gear 26 is reduced by the first gear 21, the second gear 22, the third gear 23 and the fourth gear 24 and then output by the fifth gear 25 outside the shell of the motor reducer, wherein the fourth gear 24 and the fifth gear 25 are coaxial and are arranged inside. And all the gears are arranged in a Z shape along the axis of the output shaft of the mechanical arm joint, so that the axial space is saved.

The first gear 21, the second gear 22 and the third gear 23 are all duplicate gear shafts, the fourth gear 24 outputs torque to the outside of the motor reducer, the fifth gear 25 is assembled on an output shaft of the fourth gear, transmission of external loads is achieved, and the final reduction ratio is 21.3.

The motor 3 is assembled in the box body 2, and the surfaces of the motor and the box body are matched, so that the rigidity of the motor reducer is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art of the present invention and are within the technical scope of the present invention should be covered.

Claims

1. A motor reducer is characterized by comprising a box body (2), a motor (3), a gear set, a bearing seat (10) and support legs (11);

the box body (2) is processed into an axial surface and is matched and assembled with the mechanical arm joint shell;

the motor (3) is assembled in the box body (2);

one side of the box body (2) is provided with a bearing seat (4), the structure and function integrated design is adopted, and the bearing seat is connected with the mechanical arm joint output shaft through a bearing.

2. A motor reducer according to claim 1 further comprising a cover plate (1), the cover plate (1) being machined into a shaft surface to mate with the arm joint housing.

3. A motor reducer according to claim 1 in which the bearing blocks (4) are surrounded by support legs (5) which engage the inner surface of the arm joint.