Rotor type compressor structure

Abstract

The invention discloses a rotor type compressor structure. The structure comprises a pump body. The pump body comprises a main bearing, a supplementary bearing, a crankshaft, an air cylinder, a rolling piston and a thrust bearing, wherein the crankshaft comprises a short shaft diameter, an eccentric shaft diameter and a long shaft diameter which are successively connected from top to bottom; the main bearing and the supplementary bearing are arranged on two sides of the air cylinder, respectively; a rotor piston is arranged in the air cylinder; the supplementary bearing is matched with the short shaft diameter of the crankshaft, the main bearing is matched with the long shaft diameter of the crankshaft, and the rotor piston is matched with the eccentric shaft diameter of the crankshaft; a step hole is formed in a flange end surface of the supplementary bearing; the thrust bearing is arranged in the step hole; and a lower stopping end surface of the crankshaft is in contact with the thrust bearing. According to the structure disclosed by the invention, sliding friction of the lower stopping end surface and the flange surface of the supplementary bearing is converted into rolling friction, so that the frictional power consumption of the compressor is reduced; the input power of the compressor is reduced by about 1.5%, and meanwhile, wear of a friction pair formed between a lower thrust surface of the crankshaft and the flange end surface of the supplementary bearing in long-term operation is avoided, and the reliability of the compressor is improved.

Description

technical field [0001] The invention relates to the technical field of rotor compressors, in particular to a structure of a rotor compressor. Background technique [0002] On the rotary compressor, the frictional power consumption accounts for about 8% of the total power consumption, and the frictional force between the lower thrust surface of the crankshaft and the flange end face of the auxiliary bearing accounts for about 5-8% of the frictional power consumption. , this friction pair is easily worn out. [0003] In fact, it is necessary to design a rotary compressor structure to reduce the wear of the friction pair, prolong the service life of the compressor, and reduce power consumption. Contents of the invention [0004] The object of the present invention is to provide a rotor compressor structure to solve the problem of serious wear between the lower thrust surface of the crankshaft and the flange end surface of the auxiliary bearing on the rotor compressor. [00...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a rotary compressor structure to solve the problem of severe wear between the lower thrust surface of the crankshaft and the flange end surface of the auxiliary bearing on the rotary compressor

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