Shaft, pump body component and compressor

Abstract

The invention provides a shaft, a pump body component and a compressor. By means of the shaft, the pump body component and the compressor, the problem that eddy is prone to being generated at a compressor crankshaft oil pumping inlet to increase the oil pumping resistance is solved. The adopted technical scheme of the shaft comprises a shaft body and an oil pumping structure, wherein a first end of the shaft body is placed in a lubricating medium; and the oil pumping structure comprises an oil conveying main hole passage which is arranged in the end face of the first end of the shaft body andarranged in the axial direction and a plurality of strengthening oil pumping hole passages arranged in the periphery wall of the first end of the shaft body, first ends of the strengthening oil pumping hole passages communicate with the oil conveying main hole passage, and second ends of the strengthening oil pumping hole passages penetrate through the periphery wall of the first end of the shaftbody. According to the shaft, the pump body component and the compressor, the strengthening oil pumping hole passages connect the oil conveying main hole passage with the periphery wall of the first end of the shaft body and form partial tension near the first end of the shaft body, when the shaft body rotates under driving of a rotating power source, agitation of the shaft on the lubricating medium can be effectively reduced, occurrence of an eddy phenomenon is reduced, and then the lubricating effect is improved.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a shaft, a pump body assembly and a compressor. Background technique [0002] At present, the country's oil imports are increasingly dependent on imports, and the supply of oil products is interrupted at any time, which in turn affects the development of the country. In order to ensure sufficient lubrication and reliability of the compressor, the compressor needs to inject a large amount of refrigeration oil, which is contrary to the national development strategy. In order to meet the national development, the reduction or replacement of compressor refrigeration oil has become a major development trend. [0003] The crankshaft of the rotary compressor includes a long shaft, an eccentric shaft and a short shaft arranged in sequence from top to bottom. The eccentric part is placed in the inner cavity of the cylinder of the compressor pump body. The crankshaft moves concentric...

AI Technical Summary

Problems solved by technology

[0004] If oil reduction is carried out in response to the national policy, the pump body of the compressor is insufficiently lubricated, so the pump body needs to be moved down. If the pump body is moved down, it is very easy to generate eddy currents at the lower end of the crankshaft, which increases the fl

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