Crankshaft, compressor comprising crankshaft and refrigeration equipment

Abstract

The invention relates to a crankshaft, a compressor comprising the crankshaft and refrigeration equipment, and belongs to the technical field of compressor refrigeration. The crankshaft comprises a main shaft, fan blades and an eccentric shaft which are connected in sequence, and the main shaft is provided with a first oil filling hole and a second oil filling hole along the axis direction; the outer wall surface of the main shaft is provided with a spiral oil groove, the spiral oil groove is correspondingly connected with the first oil filling hole and the second oil filling hole, and a firstannular oil groove and a second annular oil groove are formed in the outer wall surface of the main shaft; and an the first oil filling hole is formed in the first annular oil groove, and the secondoil filling hole is formed in the second annular oil groove. According to the crankshaft, the annular oil grooves are formed in the crankshaft and directly communicate with the oil filling holes, theannular oil grooves can buffer chippings, the chippings are prevented from gathering at the oil holes and damaging an oil film, and linear abrasion at the positions of the main shaft oil holes is reduced; and meanwhile, the annular oil grooves are formed in the middle of the main shaft and an eccentric shaft oil hole and store oil, all parts of the crankshaft can be rapidly lubricated when the compressor is restarted, and crankshaft abrasion is reduced.

Description

technical field [0001] The disclosure belongs to the technical field of compressor refrigeration, and in particular relates to a crankshaft, a compressor including the crankshaft, and refrigeration equipment. Background technique [0002] The statements herein merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] The crankshaft is one of the most important moving parts of the compressor. The rotor of the motor is installed on the main shaft of the crankshaft to realize the transmission of the rotational motion of the rotor. [0004] The inventor found that when the refrigeration compressor was running in the initial stage, each component was in the running-in period, and fine debris would be generated. When the crankshaft rotates to pump oil, the debris runs with the refrigerating machine oil, and it is easy to gather at the upper and lower oil holes of the crankshaft to destroy the formation of the oil ...

AI Technical Summary

Problems solved by technology

[0004] The inventor found that when the refrigeration compressor was running in the initial stage, each component was in the running-in period, and fine debris would be generated. When the crankshaft rotates to pump oil, the debris runs with the refrigerating machine oil, and it is easy to gather at the upper and lower oil holes of the crankshaft to destroy the formation of the oil film, resulting in The crankshaft wears linearly. At the same time, there is an oiling time when the refrigeration compressor starts, and the refrigeration oil cannot reach all parts of the crankshaft in time. There is insufficient lubrication, which leads to wear of the crankshaft.

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