Compression mechanism and compressor

Abstract

The invention discloses a compressing mechanism and a compressor. The compressing mechanism comprises a shell, a motor assembly, a crankshaft and a motor bearing. Stopping protrusions are arranged inside the shell. At least one first exhaust channel is defined by the outer circumferential wall of the motor assembly and the inner circumferential wall of the shell. At least one second exhaust channel is defined by the motor bearing and the inner circumferential wall of the shell. One ends of the second exhaust channels correspond to the first exhaust channels, and the other ends of the exhaust channels correspond to the stopping protrusions. An oil guide channel is defined by the upper end face of the motor bearing so as to guide lubricating oil into the gap between the motor bearing and the crankshaft. According to the compressing mechanism, the lubricating oil inside the compressing mechanism can sequentially penetrate through the first exhaust channels and the second exhaust channels along with refrigerant, the lubricating oil impacts onto the stopping protrusions and is separated from the refrigerant, the lubricating oil at the positions of the stopping protrusions can drip onto the upper end face of the motor bearing and then flow into the gap between the motor bearing and the crankshaft through the oil guide channel, and accordingly the motor bearing and the crankshaft can be lubricated and cooled.

Description

technical field [0001] The present invention relates to the technical field of compressors, in particular to a compression mechanism and a compressor. Background technique [0002] During the operation of the rotary compressor, due to the existence of the magnetic pull of the motor, the crankshaft is easily pulled out during the operation of the compressor, which affects the efficiency and reliability of the compressor, and even causes the compressor to be stuck abnormally. In the related art, installing a motor bearing on the motor side for auxiliary support can well solve this problem. However, since the motor bearing is installed above the motor, for low frequency and high motor models, the lubricating oil cannot be transported from the center hole of the crankshaft to the motor bearing to lubricate the motor bearing. And the compressor is a high-precision instrument with micron-level precision. If there is not enough lubricating oil in the gap between the motor bearing...

AI Technical Summary

Problems solved by technology

Cause abnormal wear of the motor shaft and reduce the reliability of the compressor

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