A compressor crankshaft for quick oiling

Abstract

The invention relates to the field of compressors, in particular to a compressor crankshaft for quick oiling, comprising a main shaft, a crankshaft is fixed below the main shaft, an eccentric part is fixed at the bottom of the crankshaft, and an oil inlet is arranged in the eccentric part, so The crankshaft is provided with an oil storage chamber, the main shaft is provided with a main oil circuit, the bottom of the main oil circuit is connected with the aforementioned oil storage chamber, and the oil inlet circuit is connected with the upper end surface of the aforementioned oil storage chamber through the oil passage, so The oil passage is an inverted U-shaped structure, and an oil groove is also provided on the outer end surface of the main shaft. The oil groove is arranged in a spiral around the main shaft. The oil groove is connected with the main oil circuit through a plurality of oil holes. There are a plurality of blind holes connected with the oil groove, and a plurality of annular grooves surrounding the main oil passage are also arranged on the inner wall of the main shaft. After the lubricating oil falls back, the oil storage chamber is filled with lubricating oil and the oil passage is in a vacuum state. When the main shaft rotates, the lubricating oil is directly extracted and then reaches the main oil passage to realize fast oiling.

Description

【Technical field】 [0001] The invention relates to the field of compressors, in particular to a compressor crankshaft for quick oiling. 【Background technique】 [0002] The compressor usually includes a closed casing, a compression pump body, a motor assembly, a crankshaft, a gas-liquid separator, a suction pipe and an exhaust pipe. The stator and the rotor form the motor assembly of the compressor, and the compression pump body includes a cylinder, an upper flange, a lower flange and a roller fixed on the eccentric part of the crankshaft. When working, the rotor rotates inside the stator, and drives the roller to roll eccentrically in the cylinder through the rotating shaft. Under the eccentric rolling action of the roller, the low-pressure refrigerant is sucked into the cylinder through the suction pipe for compression until it is compressed to the pressure. When the critical pressure is exceeded, it is output to the heat exchange system through the exhaust pipe. [0003] ...

AI Technical Summary

Problems solved by technology

However, when the compressor starts to work, before the crankshaft speed is high enough, the moving parts of the movement are dry and there is no lubricating oil for lubrication, resulting in large starting friction resistance and difficult starting. Therefore, the motor in the compressor is required to have a large starting torque

At the same time, since there is no lubricating effect of lubricating oil for a long time after starting, it is easy to cause serious wear and tear and reduce the working life of the compressor

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