Vehicle-mounted direct current direct-connected-type oil-free vortex air compressor

Abstract

The invention provides a vehicle-mounted direct current direct-connected-type oil-free vortex air compressor. The vehicle-mounted direct current direct-connected-type oil-free vortex air compressor comprises a static scroll plate, a movable scroll plate, a compressor crankshaft and a bearing pedestal. A direct current synchronous permanent magnet motor comprises a motor body and a motor shaft. The compressor crankshaft is installed in the bearing pedestal. The input end of the compressor crankshaft and the output end of the motor shaft are in engaged connection through a spline. The output end of the compressor crankshaft is fixedly connected with the movable scroll plate. One end of the bearing pedestal is connected with the motor body through bolts, and the other end of the bearing pedestal is connected with the static scroll plate through bolts. An oil-free vortex air compressor body and the direct current synchronous permanent magnet motor in the vehicle-mounted direct current direct-connected-type oil-free vortex air compressor provided by the invention are two independent parts, the motor shaft and the compressor crankshaft are in engaged connection through the spline, driving force is directly transmitted to the compressor crankshaft through the motor shaft, the driving efficiency is high, and maintenance is convenient; as the static scroll plate is provided with a containing cavity, the overall size is reduced.

Description

technical field [0001] The invention relates to the technical field of air compressors, in particular to a vehicle-mounted DC direct-coupled oil-free scroll air compressor. Background technique [0002] At present, the oil-free scroll air compressors used in vehicles are limited to oil-piston or oil-sliding vane types. Oil-free scroll air compressors or oil-free scroll air compressors are used in high-end rail transit vehicles, or imported oil-filled scrolls are used. Or oil-free scroll air compressors, oil-piston or oil-sliding vane oil-free scroll air compressors are generally used on ordinary large vehicles due to cost constraints. The existing oil-piston type or oil-sliding vane type oil-free scroll air compressors have defects such as unstable operation, short maintenance period and high maintenance cost, large structure occupying the effective space of the vehicle, and large oil discharge pollution during the working process. At the same time, the existing oil-free sc...

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Problems solved by technology

[0003] Aiming at the above problems in the prior art, the present invention provides a vehicle-mounted DC direct-connected oil-free scroll air compressor, which can overcome the problems of unstable operation, short maintenance period, high maintenance cost and bulky structure in the prior art Defects such as occupying the effective space of the vehicle, polluting the air due to oil emissions during the working process, and failing to provide sufficient air kinetic energy when the vehicle is idling or stopped

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