Lubricating oil extracting apparatus of closed compressor

Abstract

A lubricating oil pumping device for a hermetic compressor, in which a frame is arranged inside a hermetic container, the stator is fixed on the frame, the frame is supported inside the hermetic container by a spring, the bushing is arranged at the lower end of the crankshaft, and the shaft bushing is formed There is a passage for supplying lubricating oil to the oil circuit of the crankshaft, and the oil-absorbing part for supplying lubricating oil to the oil circuit maintains a gap with the inner surface of the bushing, and is installed inside the bushing relatively non-rotatingly, and a spiral flow path is formed on the outer peripheral surface of the oil-absorbing part , the lower end of the oil-absorbing part is extended to form a mounting bracket, the end of the mounting bracket is installed between the spring and the spring seat supporting the spring, the spring elastically supports the frame, and can keep the crankshaft running normally. The present invention arranges the oil absorbing part inside the shaft sleeve at a specific position through a plurality of mounting brackets, so that the lubricating oil can be sucked up smoothly. Since the crankshaft and the frame side are fully assembled, the simplified oil pumping device can be installed inside the airtight container, which not only simplifies the assembly, but also improves the assembly workability.

Description

Technical field [0001] The present invention relates to an invention of a hermetic compressor. Furthermore, it relates to a lubricating oil extraction device for a hermetic compressor that supplies lubricating oil to the heat generating part or sliding part of the hermetic compressor so that the hermetic compressor can perform heat dissipation and lubrication. Background technique [0002] figure 1 A cross-sectional view of the internal structure of a hermetic compressor in the prior art is presented. [0003] Such as figure 1 As shown, the interior of the prior art hermetic compressor has the following structure: the hermetic container 1 is composed of an upper container 1t and a lower container 1b; the frame 2 is arranged inside the hermetic container 1; and the stator 3 is fixed on the frame 2. The frame 2 is supported inside the closed container 1 by a spring 2S. That is, the support seat 1s installed on the bottom surface of the lower container 1b supports the lower end o...

AI Technical Summary

Problems solved by technology

[0012] In the case of using the elastic bracket 5m, since the oil absorbing member 5p formed inside the bushing 5s and the bushing 5s cannot be accurately arranged, a gap is formed between them, so the lubricating oil will be sucked during the initial drive. Problems that cannot be carried out smoothly

[0013] In addition, since the oil-absorbing part 5p fixes the bushing 5s in a relatively static state, the oil-absorbing part 5p and the bushing 5s cannot be combined into one assembly

That is, firstly, the bushing 5s is press-fitted into the lower end of the crankshaft 5, and then the oil absorbing member 5p connected to the bracket 5m is inserted into the bushing 5s, and then the bracket 5m is fixed to the bracket 3s. So it brings a lot of inconvenience in the assembly work

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