Servo motor

Abstract

Disclosed is a servo motor. The servo motor comprises a motor shell, a stator, a rotor, a motor rotating shaft, end covers, an encoder and a cooling frame, wherein the encoder is mounted at the rear end of the motor rotating shaft, each end cover comprises an end cover body and a projecting portion with a shaft hole, and the cooling frame is arranged between the motor shell and the stator. Each end cover body is provided with a bearing cover mounting hole and a bearing mounting hole, a bearing is mounted in the bearing mounting hole, a bearing cover for covering the bearing is fixedly arranged in the bearing cover mounting hole, a through hole is formed in the center of the bearing cover, and a press ring projecting inwardly is arranged on the inner wall of the bearing cover, extends into the bearing mounting hole and abuts against the inner wall of the bearing mounting hole and an outer race of the bearing. Each end cover body is provided with an axially projecting flanged portion, and a plurality of clamping openings are formed in the inner wall of the end cover body. Step portions are arranged at the two ends of the motor shell, the inner walls of the end cover bodies abut against and are connected with end faces of the step portions by clamping, and the flanged portions abut against step faces of the step portions and are fixedly locked by screws.

Description

technical field [0001] The invention belongs to the technical field of motors and relates to a servo motor. Background technique [0002] With the gradual improvement of modern industrial automation, the application of servo motors has become the mainstream of industrial control, and occupies a very important position in the production of contemporary industrial equipment. The precise speed control structure of servo motors, low noise and high reliability, etc. Superior performance makes it favored by people. [0003] However, when the motor is working, all kinds of losses will be converted into heat, which will increase the internal temperature of the servo motor, and if the temperature is too high, it will easily affect the magnetism. At present, there are serious heat dissipation problems in solid rotor motors. To solve the heat dissipation problem, the fan blades arranged on the end ring of the rotating shaft are used to circulate the air inside the motor when the rotor...

AI Technical Summary

Problems solved by technology

At present, there are serious heat dissipation problems in solid rotor motors. To solve the heat dissipation problem, the fan blades arranged on the end ring of the rotating shaft are used to circulate the air inside the motor when the rotor rotates, and bring the heat generated by the stator and rotor to the casing to dissipate. The internal air flow is easily blocked, the circulation fluidity is relatively poor, and the ventilation is not obvious, which not only does not reduce the temperature rise, but also makes the efficiency of the motor low and the service life shortened

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