Structure for preventing motor shaft from moving

Abstract

The invention discloses a structure for preventing a motor shaft from moving. The structure comprises a motor fixed in a motor frame, wherein the motor comprises a motor shaft that is fixedly connected with a drive disc, a boundary plate is transversely arranged on the motor frame, the drive disc is positioned between the motor and the boundary plate, a first groove is formed in the axis of the drive disc, the boundary plate is provided with a second groove corresponding to the first groove, and a first ball is arranged in the first groove and second groove in a rolling manner. The drive disc serving as a work unit may generate axial deviation to drag the motor shaft, and the first ball pushes against the axis of the drive disc so as to be capable of preventing the drive disc from moving outwards, and thereby the axial deviation of the motor shaft is avoided. The structure has the advantages that the wearing of the motor and device caused by the axial deviation of the motor shaft generated under the action of long-term axial external force can be avoided, the problem about the axial deviation of the motor shaft generated after the traditional motor is aging is solved, and the structure has the advantages of reasonable structural layout, high mechanism fitting accuracy and stable operation.

Description

technical field [0001] The invention relates to a motor structure, in particular to a structure for preventing the motor shaft from moving. Background technique [0002] No matter when the motor shaft can't shift, a little bit of activity will have little effect on the motor itself. If it shifts too much, the current will increase, the temperature of the motor will increase, and the mechanical impact will increase, which may also affect other equipment. The movement of the motor shaft increases the gap between the joint parts that should not move relative to each other, which increases the vibration and noise of the motor, and the possibility of "bore sweeping" occurs, which reduces the service life. There are two common reasons for motor shaft shifting: the first is that the axial clearance of the motor rotor shaft is too large, and it moves back and forth by hand. This is caused by the motor cover gasket being too thick or the bearing seat hole worn. ; The second is the a...

AI Technical Summary

Problems solved by technology

[0002] No matter when the motor shaft is not shifting, there is a little amount of activity, which has little effect on the motor itself. If there is too much shifting, the current will increase, the temperature of the motor will increase, and the mechanical impact will increase, which may also affect other equipment.

The movement of the motor shaft increases the gap between the joint parts that should not move relative to each other, which increases the vibration and noise of the motor, and the possibility of "sweeping the bore" may reduce the service life

Images