Flange structure, pump body and compressor

• Main Authors: LIAN SHUAI, LIANG JIANKUN, MA WEITAO, LI JINGSHUAI, LIU QINGHUI, WU JIAN
• Format: Patent
• Language: Chinese; English
• Published: 30.06.2023
• 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 flange structure specifically comprises a flange body and a flow guiding piece, the flange body is provided with a center shaft hole and an exhaust hole which are formed in the thickness direction in a penetrating mode, and the center shaft hole and the exhaust hole are formed in the radial direction of the flange body at intervals; the flow guide piece is arranged in the exhaust hole and used for guiding gas of the exhaust hole to flow circumferentially, the flange body is further provided with an oil return flow channel, and a flow guide groove is formed in the hole wall of the exhaust hole and communicated with the central shaft hole through the oil return flow channel. Thus, an oil return loop is formed between the exhaust channel and the central shaft hole, oil is supplemented to the crankshaft in the central shaft hole, the situation that a large amount of exhaust gas of the exhaust channel is brought out of the compressor is avoided, the rotating lubrication degree of the crankshaft of the compress