Bearing press-fitting machine for motor rotor

Abstract

The invention discloses a bearing press-fitting machine for motor rotor. The machine comprises a machine body, wherein a workbench is arranged in the machine body; the machine further comprises a positioning mechanism used for positioning the motor rotor and a bearing, a pressing mechanism used for fixing the motor rotor while press fitting and a press-fitting mechanism used for pressing the bearing into the motor rotor, and the press-fitting mechanism is directly opposite to the positioning mechanism; and the machine further comprises a reset mechanism used for resetting the positioning mechanism after the press fitting is completed, the reset mechanism comprises reset supports, the reset supports are provided with guide wheels, the guide wheels are provided with steel wire ropes, one ends of the steel wire ropes are connected with the positioning mechanism, and each of the other ends of the steel wire ropes are provided with one counterweight block. According to the bearing press-fitting machine for motor rotor, semi-automatic press fitting of the bearing on the upper end and the lower end of the motor rotor can be achieved, so that the production efficiency and the assembly quality are improved; and the press fitting distance between the rotor and the bearing can be kept unchanged, so that the press-fitting quality is guaranteed, meanwhile, the press-fitting distance and thepress-fitting pressure can be adjusted, and therefore the requirements of different rotor press-fitting are met.

Description

technical field [0001] The invention relates to a bearing pressing machine for a motor rotor. Background technique [0002] A motor generally consists of two parts, a rotor and a stator, and the rotor is the rotating part of the motor. Its main function is to rotate and cut the magnetic field generated after the stator is energized, thereby generating torque and driving the load. [0003] Since the rotor needs to move continuously and quickly, the upper and lower ends of the rotor are installed with bearings respectively to support the rotor, reduce the friction coefficient of the rotor shaft during the rotation process, and ensure the rotation accuracy. However, the matching accuracy between the rotor shaft and the bearing is generally required to be high, and a transition fit with a very small clearance is usually selected to achieve the above-mentioned advantages presented by the bearing. [0004] The existing rotor bearing press-fitting machine mainly includes a positi...

AI Technical Summary

Problems solved by technology

[0004] The existing rotor bearing pressing machine mainly includes a positioning base and a pressure head, and the positioning base is reset after pressing through a spring, so the existing rotor bearing pressing machine can only perform single-head work during pressing, and the efficiency is relatively low , and the spring will be deformed after a long time of pressing, which will change the pressing distance between the rotor and the bearing, thus affecting the assembly of the two

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