High-pressure anti-friction column pin type vane pump

Abstract

The invention discloses an anti-friction vane and a high-pressure anti-friction column pin type vane pump. The anti-friction vane comprises a flat-hexahedron-shaped vane, a first anti-friction oil groove formed in the top end surface of the vane, and second anti-friction oil grooves formed in the left end surface and the right end surface of the vane, wherein a plurality of column pin holes are formed in the first anti-friction oil groove. The high-pressure anti-friction column pin type vane pump adopts the anti-friction vane disclosed by the invention except for the structure of a traditional column pin type vane pump; a front copper side plate and a back copper side plate are additionally mounted on two end surfaces of a stator; and a plurality of anti-friction oil grooves of the copper side plates are arranged on the side surfaces of the front and the back copper side plates, which are contact with the stator. The anti-friction vane disclosed by the invention has the advantages of good friction-resistant performance and little noise; and the high-pressure anti-friction column pin type vane pump provided with the anti-friction vane and additionally equipped with the copper side plates has the advantages of high rotational speed, high flow rate, good anti-friction performance and low noise.

Description

technical field [0001] The invention relates to a vane pump in the hydraulic field, in particular to a wear-reducing vane and a high-pressure wear-reducing pin type vane pump with the wear-reducing vane. Background technique [0002] A hydraulic pump is a device that converts the rotational mechanical energy of an electric motor or engine into volumetric fluid energy, which realizes the automation or semi-automation of hydraulic machinery through the control elements of the system. Vane pumps are superior to gear pumps and plunger pumps due to their low noise, long life, and small pressure pulsation, and their performance and life largely determine the work of the entire hydraulic system in a wide variety of hydraulic equipment. ability. [0003] The pin-type vane pump uses the volume change between two adjacent vanes installed in the rotor driven by the transmission shaft and in the radial groove of the rotor to realize oil suction and oil pressure. The high pressure depen...

AI Technical Summary

Problems solved by technology

The traditional pin-type vane pump generally has the following disadvantages: the vane is only provided with an oil groove on a single end surface, which makes the hydraulic shock increase the oil-absorbing area and causes cavitation, so that the vane pump has poor anti-friction effect and high noise; The column pin type vane pump only has gray cast iron oil distribution plate on the outer surface of the stator and rotor. This structural design also causes serious wear on the curved surface of the vane and stator, which makes the noise of the vane pump loud and shortens the service life.

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