Servo motor with improved structure

Abstract

The invention belongs to the technical field of motors, and relates to a servo motor with an improved structure. By using the servo motor, the technical problems of unreasonable design and the like in the prior art are solved. The servo motor comprises a tubular shell; a stator and a rotor penetrating into the stator are arranged in the shell; two ends of the shell are respectively fixed with an end cover; the side part of the stator is provided with a raised line and a mounting positioning line which axially extend and are further arranged oppositely; the inner wall of the shell is provided with a first groove body and a second groove body which axially extend and are further arranged oppositely; the raised line and the mounting positioning line are respectively inserted into the first groove body and the second groove body; a first passage into which a first fixing pin is inserted and which fixes the shell and the end covers positioned at the two ends of the shell is formed between the top of the raised line and the groove bottom of the first groove body; and a second passage into which a second fixing pin is inserted and which fixes the shell and the end covers positioned at the two ends of the shell is formed between the top of the mounting positioning line and the groove bottom of the second groove body. The servo motor has the advantages of simple structure, convenience in mounting, high mechanical strength, good stability, small motor volume, long service life and the like.

Description

technical field [0001] The invention belongs to the technical field of motors and relates to a servo motor with an improved structure. Background technique [0002] As a device that can efficiently convert electrical energy into mechanical energy, the motor is widely used in various fields. The assembly of the motor stator and the motor casing must be considered during the design of the motor. It is necessary to ensure that the motor stator and the motor casing are tightly fixed together, and there is no mutual rotation or axial mutual sliding during work. The current method is to heat the motor casing to a certain temperature, and then press the motor stator into the motor casing while it is hot. After the motor casing cools down to normal temperature, the motor stator is firmly fixed in the motor casing, which solves the problem. The motor stator rotates or axially slides with the motor casing during work. When installing the motor end cover, fasteners are usually used t...

AI Technical Summary

Problems solved by technology

But the shortcoming of this structure is: 1, production efficiency is low

2. The motor shell needs to be heated, which wastes energy

3. The matching accuracy between the motor stator and the motor casing of this structure must be very precise. The size of the interference directly affects the tightness of the motor stator after assembly, and also affects the service life of the motor. 4. The end of the installation motor cover, the positioning holes can only be processed at both ends of the motor housing, and the operation process is cumbersome

This solution solves the problem of mutual rotation or axial sliding between the motor stator and the motor housing to a certain extent; however, the structure still has the following problems: 1. It is difficult to process and not suitable for large Mass production, high cost

2. After the motor has been running for a long time, the motor stator will rotate relative to the motor housing, and the working stability is poor

[0004] In order to solve the cumbersome installation process of the existing motor end cover, people have designed an assembly structure of the motor end cover [authorized announcement number: CN 201226473 Y], including the end cover and the shell, the end cover and the shell are nested together, There are several hooks protruding from the end cover, and there are several grooves corresponding to the hooks on the surface of the shell, and the top of the hooks is hooked on the step at the bottom of the grooves

This solution solves the problem of installing the motor end cover, but the volume of the motor is relatively large

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