Coaxial motor axle assembly with cooling device

Abstract

The coaxial motor axle assembly with the cooling device comprises an axle shell, the outer surface of the axle shell is sleeved with an annular sealing cover, an oil pipe is inserted into the outer surface of the annular sealing cover, a micro pump is installed on the upper end face of the axle shell in a threaded mode, and the side, away from the micro pump, of the oil pipe is sleeved with an electromagnetic valve; the side, away from the electromagnetic valve, of the oil pipe is sleeved with a cooling assembly, an inner ring is rotationally installed on the inner wall of the outer ring, and sealing assemblies are bonded to the positions, located on the two sides of the inner ring, of the inner wall of the outer ring. The mode that cooling oil is injected through the annular sealing cover cannot cause resource waste, parts cannot be rusted, hot oil can be quickly cooled and can be recycled within a short time, the cooling effect is better, the inner ring of the hollow shaft can be avoided, the situation that the hollow shaft is abraded due to friction of the bearing unit can be avoided, and the service life of the hollow shaft is prolonged. The service life of the hollow shaft can be prolonged, gaps are not prone to occurring in the sealing assemblies on the bearing units, and the sealing effect is better.

Description

technical field [0001] The invention relates to the technical field of axle assembly, in particular to a coaxial motor axle assembly with a cooling device. Background technique [0002] Automobile axle, also known as axle, is connected with vehicle frame or load-bearing body through suspension, and wheels are installed at both ends. The role of the axle is to bear the load of the car and maintain the normal driving of the car on the road. according to drive mode different, the axle is also divided into Steering axle , drive axle, steering drive axle and support axle. Among them, the steering bridge and the supporting bridge belong to driven bridge . Most cars use front-rear drive, so the front axle acts as the steering axle and the rear axle acts as the driving axle, whereas in front-front drive cars the front axle becomes the steering axle and the rear axle acts as the supporting axle. [0003] The current coaxial motor axle assembly uses a cooling method of install...

AI Technical Summary

Problems solved by technology

[0003] The current coaxial motor axle assembly uses a cooling method of installing a water tank on the axle housing, and then spraying water on the outside of the motor with a spray nozzle, which is a waste of resources, and the parts with high temperature are easily corroded when exposed to water. With this cooling method, when the weather is hot, the temperature of the water tank will also rise, and the cooling effect is not good enough, and the hollow shaft driven by the motor is likely to cause friction with the bearing on the axle housing that carries the main shaft, resulting in wear of the hollow shaft. The service life is short, and when the vehicle is running on an uneven road surface, the sealing assembly on the bearing unit is prone to gaps, and the sealing performance is not good enough

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