Servo motor with stable rotation of rotating shaft and control method thereof

Abstract

The invention discloses a servo motor with stable rotation of a rotating shaft and a control method thereof. The servo motor comprises a motor body and a main shaft. A mounting frame is arranged outside the motor body and is provided with a heat dissipating cover, a brake chamber, a stable mounting shell and a rotation speed detecting device; a cooling device is arranged in the heat dissipating cover; a brake device is arranged in the brake chamber; and a stabilizing device is arranged in the stable mounting shell. The heat dissipating device, the brake device and the stabilizing device are all connected with the rotation speed detecting device. The stabilizing device includes electromagnetic rings and a fixed ring; the electromagnetic rings are fixed at a main shaft; the fixed ring sleeves the outsides of the electromagnetic rings; the fixed ring, the electromagnetic rings, and the main shaft have no contact; the electromagnetic rings are arranged on the inner wall of the fixed ring;and the two electromagnetic rings have the same magnetic properties. On the basis of the mode of non-contact main shaft stabilizing, the main shaft rotates stably and is protected from being damaged,thereby realizing the non-destructive stable main shaft. Therefore, the usage performance and service life of the servo motor are guaranteed.

Description

technical field [0001] The invention relates to the technical field of servo motors, in particular to a servo motor with stable rotating shaft rotation and a control method thereof. Background technique [0002] Servo motor refers to the engine that controls the operation of mechanical components in the servo system, and is an auxiliary motor indirect speed change device. The servo motor can control the speed and position accuracy very accurately, and can convert the voltage signal into torque and speed to drive the control object. The rotor speed of the servo motor is controlled by the input signal and can respond quickly. In the automatic control system, it is used as an actuator, and has the characteristics of small electromechanical time constant, high linearity, and starting voltage. It can convert the received electrical signal Converted to angular displacement or angular velocity output on the motor shaft. It is divided into two categories: DC and AC servo motors. I...

AI Technical Summary

Problems solved by technology

[0003] During the working process of the servo motor, the shaking of the rotating shaft will cause it to deviate from the original center position for shaking and rotation, and the rotation effect shown in graphics is conical, which will have an impact on the working efficiency and working accuracy of the entire servo motor. It will produce various disadvantages such as noise and energy consumption, which greatly reduces the service efficiency and life of the servo motor

[0004] In the prior art, in order to solve the problem of the radial runout of the motor shaft, the movement of the shaft is prevented by setting a limiter that is in direct contact with the shaft. Because of this setting, the rotation of the shaft is hindered, which affects the performance of the servo motor. At the same time, the rotating shaft will be damaged by friction when it is in contact with the limiter, which will damage the motor shaft and reduce the service life of the servo motor. At the same time, due to continuous friction, the temperature of the motor shaft will continue to rise, affecting the performance of the motor.

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