Laser cladding reinforcing process of motor central spindle

Abstract

The invention discloses a laser cladding reinforcing process of a motor central spindle. In the reinforcing process, a layer of 18-8 type austenitic stainless steel serving as a base coat is cladded by laser cladding technology at the bearing position of the central spindle, and then a layer of 1Cr13 type martensite stainless steel serving as a wear-resistant and corrosion-resistant surface layeris cladded, so that stepped reinforcement is realized, the service life of the motor central spindle is prolonged, operating performance is balanced, and using problems such as corrosion of the central spindle at the bearing position, shaft deviation caused by wear, roughing of a bush and the like are solved. In the process, parameter controllability is high, machining operation is convenient andindustrial batch production is convenient.

Description

technical field

[0001] The invention relates to a motor in the field of mechanical equipment, in particular to a local composite strengthening process for a motor mandrel. Background technique

[0002] The motor mandrel is the main component of the motor rotor and also the main load-bearing part of the motor. The silicon steel sheet and coil winding as the core part of the motor are fixed on the mandrel, and the silicon steel sheet and coil winding drive the mandrel at a high speed under the action of the electromagnetic field. Rotation, the bearing position on both sides of the mandrel, that is, the bearing pad support position fixed on the motor housing, is subject to friction and high temperature for a long time, which is very easy to cause wear and corrosion of the mandrel. After the mandrel is worn and corroded, the diameter becomes smaller, and the gap with the bearing bush becomes larger, radial runout occurs during operation, and the whole motor emits a huge noise, w...

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