Compressor crankcase and compressor

Abstract

The invention relates to the technical field of compressors, and discloses a compressor crankcase and a compressor. The compressor crankcase comprises a crankcase body and a power crankshaft, whereina fixed sleeve is fixedly mounted on the outer wall of one side of the crankcase body; a fixed groove is formed in the outer wall of one side of the fixed sleeve; a fixed bearing is fixedly mounted onthe inner wall of the fixed groove; a gasket is fixedly mounted on the outer wall of one side of an outer shaft ring of the fixed bearing; a first needle bearing is fixedly mounted on the outer wallof the side, away from the fixed bearing, of the gasket; a first limiting groove and a second limiting groove are formed in the outer wall of the portion, positioned between two crankshaft blocks, ofthe power crankshaft; a third bearing is fixedly mounted in the first limiting groove; and a first connecting rod is fixedly mounted on the outer wall of the third bearing. According to the compressorcrankcase and the compressor, the power crankshaft in the crankcase body and a second belt wheel arranged outside the crankcase body are kept coaxial during work, friction between the first connecting rod and a second connecting rod is reduced, and the loss of power transmission of the power crankshaft is reduced.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a compressor crankcase and a compressor. Background technique [0002] Air compressor is a kind of equipment used to compress gas. Air is widely used in industrial production. The structure of air compressor and water pump is similar. There are many types of air compressors. At present, air compressors are widely used. The work of the piston compressor is completed by the continuous change of the working volume composed of the cylinder, the valve and the reciprocating piston in the cylinder. The work completed by the crankshaft of the piston compressor per rotation can be divided into suction, compression and During the exhaust process, the piston refrigeration compressor is mainly composed of the body, crankshaft, connecting rod, piston group, valve, shaft seal, oil pump, energy adjustment device, oil circulation system and other components. [0003] At present, the existin...

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Problems solved by technology

[0003] At present, the existing piston compressors generally use the drive motor or the diesel engine to drive the pulley to drive the piston compressor to do work. Concentricity is very important. These connecting parts are driven by external pulleys, so whether the internal crankshaft and pulleys are concentric will directly affect the working efficiency and service life of the compressor. At present, the existing piston compressors When the crankshaft goes out of the crankcase, it is fixed with traditional screws. When this fixing method is used for a long time, due to the transmission of the pulley and the inside of the crankcase, the concentricity of the crankshaft and the pulley will be deviated, which will affect the unit. Efficiency and service life. The power crankshaft inside the piston compressor is one of the main components of the piston compressor. It transmits all the power of the compressor and transmits the power to the connecting rod. The connecting rod is the connection between the crankshaft and the piston. It converts the rotary motion of the crankshaft into the reciprocating motion of the piston, and transmits the power to the piston to do work on the gas. The two connecting rods installed inside the existing piston compressor will rub against each other when they are used for a long time situation, which will affect the working efficiency of the connecting rod and reduce the service life

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