Pump body assembly and compressor

• Main Authors: MOU DI, DING SHAOPENG, WANG JUN, YANG OUXIANG
• Format: Patent
• Language: Chinese; English
• Published: 01.12.2023
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS; WEAPONS

The invention provides a pump body assembly and a compressor, relates to the technical field of compressors, and solves the technical problems of unequal gaps and large leakage rate caused by non-uniform pressure on two sides of a roller. The pump body assembly comprises a roller, an upper flange and a lower flange, wherein the upper flange and the lower flange are respectively arranged on two sides of the roller; a pressure equalizing structure is arranged on the upper flange and/or the lower flange, or a pressure equalizing structure is arranged on the roller, so that the two end surfaces of the roller are stressed in a balanced manner; the pressure equalizing structure is an annular groove structure arranged on the contact surface, and the annular groove structure is communicated with the inner circles of the upper and lower flanges or the inner circle of the roller, so that the backpressure areas of the upper and lower end surfaces of the roller are equal. The pressure equalizing structure is arranged on