High-speed motor with spindle heat dissipation structure

Abstract

The invention provides a high-speed motor with a spindle heat dissipation structure, which relates to the field of motor cooling. The high-speed motor with a spindle heat dissipation structure includes a motor shell, a stator core, and a spindle and a rotor rotationally installed inside the stator core. A cooling sleeve is arranged between the motor shell and the stator core. A heat exchange channel for gas circulation is reserved between the stator core and the cooling sleeve. Air holes are arranged in the outer circumferential wall of the stator core. The air holes communicate the heat exchange channel with the internal space of the stator core. The air holes communicate the inner and outer spaces of the stator core, so that the heat emitted by the spindle and the rotor can be transferred to the outside of the stator core through the air holes, and heat accumulation inside the stator core is avoided. The heat is driven by gas flow to diffuse outward and fully contacts the inner wallof the cooling sleeve for heat exchange, so that the spindle and the rotor are cooled, high temperature caused by the piling up of heat on the spindle is prevented, and the working accuracy and service life of the high-speed motor are ensured.

Description

technical field [0001] The invention relates to the technical field of motor cooling, in particular to a high-speed motor with a main shaft cooling structure. Background technique [0002] The motor is a common power device, which converts electrical energy into mechanical energy to achieve the purpose of driving. With the development of advanced processing technology, high-speed spindle has become a key technology. During the high-speed rotation of the spindle, a large amount of heat will be generated due to unavoidable friction, and the spindle will be thermally deformed at high temperature, which will affect the machining accuracy. [0003] A cooling jacket is usually used to cool the inside of the motor. For example, the Chinese utility model patent with the authorized announcement number CN207218462U and the authorized announcement date of 2018.04.10 discloses a high-speed motor stator cooling structure, and specifically discloses that the high-speed motor includes a mo...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems, the purpose of the present invention is to provide a high-speed motor with a main shaft heat dissipation structure, so as to solve the problem that a large amount of heat accumulates on the main shaft during the high-speed operation of the motor, causing high temperature and affecting the working accuracy and service life of the motor.

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