Rear-mounted grinding wheel main shaft motor of plane grinding machine

Abstract

The invention discloses a rear-mounted grinding wheel main shaft motor of a plane grinding machine, which is characterized by comprising a shell, a main shaft, a permanent magnet rotor assembly, a stator assembly, an encoder, a front end cover and a rear end cover, wherein the main shaft is arranged in the shell through a bearing I and a bearing II; the stator assembly is arranged in the shell and is located at the rear end of the shell; the permanent magnet rotor assembly is arranged on the main shaft; the front end cover is arranged at the front end of the shell; the rear end cover is arranged at the rear end of the shell; the encoder is arranged at the rear end of the main shaft and is connected with an external driver; the main shaft extends from the front end cover; the part of the main shaft is a conical surface, which extends from the front end cover; and the conical surface of the main shaft is provided with a grinding wheel grinding head. The rear-mounted grinding wheel main shaft motor of the plane grinding machine is capable of expanding the rotation angle of the grinding head and expanding the application range of the plane grinding machine.

Description

technical field [0001] The invention relates to a spindle motor, in particular to a rear-mounted grinding wheel spindle motor for a surface grinder. Background technique [0002] There are two traditional driving methods for the grinding wheel spindle of surface grinder. One is that the output shaft of the motor drives the belt to drive the spindle of the grinder to rotate through the pulley. The other is the direct drive of the rear asynchronous motor. The asynchronous motor has the defects of large volume and low power density. Contents of the invention [0003] The object of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a rear-mounted grinding wheel spindle motor for a surface grinder. The invention can expand the range of the grinding head rotation angle, improve the application surface of the surface grinder, and enhance the safety of use. [0004] In order to achieve the above object, the technical solution adopt...

AI Technical Summary

Problems solved by technology

[0002] There are two traditional drive methods for the grinding wheel spindle of a surface grinder. One is that the output shaft of the motor drives the belt to drive the spindle of the grinder to rotate through the pulley. This system has a complex structure, which is not conducive to the grinding head rotation angle of the grinder, and the belt drive also has a certain efficiency loss.

The other is the direct drive of the rear asynchronous motor. The asynchronous motor has the defects of large volume and low power density.

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