A rotary compressor with an oil storage chamber pump body

Abstract

The invention provides a rotary compressor of a pump body with an oil storage cavity. The rotary compressor comprises a roller, a crankshaft, a cylinder, an upper flange and a lower flange, wherein the roller is arranged on the crankshaft and is matched with the cylinder in an eccentric mode; a thrust surface extension part is extended on a thrust surface at the lower end of the crankshaft along the axial direction; a clapboard matched with the thrust surface extension part is arranged between the cylinder and the lower flange; the oil storage cavity which makes the compressor conveniently lubricated and prevents redundant refrigerant oil from being discharged or extruded out of an exhaust port of the pump body is enclosed at the matched position among the lower flange, a short shaft of the crankshaft and the clapboard; a friction working surface of the thrust surface at the lower end of the crankshaft is matched with an upper end surface of the lower flange; and a friction working surface of the roller is matched with the clapboard.

Description

【Technical field】 [0001] The invention relates to compressor equipment, in particular to a rotary compressor with an oil storage chamber pump body. 【Background technique】 [0002] At present, during the use of the rotary compressor, it is difficult to return the oil in the high-drop installation of the air conditioner; in the high-temperature refrigeration of the air conditioner and the high-temperature heating of the heat pump water heater under the T3 working condition, the high temperature volatilizes the refrigerated oil and compresses it. The oil discharge volume of the machine is large; in the ultra-high frequency operation of the inverter compressor, the speed is the key vector for the quality of friction. [0003] The above situations will cause the wear of the pump body to increase when the rotary compressor works under harsh working conditions. Because of all the sliding and rolling friction pairs of the pump body, the thrust surface of the crankshaft bears the wei...

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Problems solved by technology

[0003] The above situations will cause the wear of the pump body to increase when the rotary compressor works under harsh working conditions. Because of all the sliding and rolling friction pairs of the pump body, the thrust surface of the crankshaft bears the weight of the motor rotor assembly and the crankshaft, and the force-bearing area is small. , forming the worst pair of friction pairs with the lower flange, which is easily affected

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