An Auxiliary Mechanism for the Return Disc of an Axial Piston Pump

Abstract

The invention discloses an auxiliary mechanism for a return plate of an axial piston pump, relates to the technical field of axial piston pumps, and comprises a wear-resistant plate, a plurality of wear-resistant guard plates and a plurality of connecting components. The wear-resistant plate includes an annular plate and multiple Two ear-shaped protruding plates arranged circumferentially along the outer edge of the annular plate, a wear-resistant guard plate is arranged below each ear-shaped protruding plate, and a connecting component is used to connect a wear-resistant guard plate and an ear-shaped protruding plate, The connection assembly is used to fix the wear-resistant plate and the wear-resistant plate on the end cover. The wear-resistant plate includes an arc-shaped main plate and an arc-shaped support plate arranged at the inner lower part of the arc-shaped main plate, the wear-resistant plate and the wear-resistant guard The return disc is placed between the plates, the arc-shaped support plate is used for supporting the return disc, and the inner side of the arc-shaped main plate is used for positioning the return disc. The auxiliary mechanism of the return plate of the axial plunger pump provided by the present invention can ensure the oil film gap of the sliding shoe pair, can ensure the reliable return of the plunger, and can save maintenance costs in the later stage.

Description

technical field [0001] The invention relates to the technical field of axial piston pumps, in particular to an auxiliary mechanism for a return plate of an axial piston pump. Background technique [0002] For axial piston pumps, the oil film gap between the sliding shoe and the bearing surface of the sliding shoe pair needs to be strictly controlled to ensure that the sliding shoe pair is in the state of oil film contact or a mixed contact state of oil film and no oil film; the roughness of the bearing surface of the sliding shoe pair In particular, the roughness of the side with the higher surface hardness of the shoe pair needs to be strictly controlled to make the surface as smooth as possible. Error and roughness are difficult to meet the requirements. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides an auxiliary mechanism for the return plate of the axial plunger pump, which can ensure the oil film clea...

AI Technical Summary

Problems solved by technology

[0002] For axial piston pumps, the oil film gap between the sliding shoe and the bearing surface of the sliding shoe pair needs to be strictly controlled to ensure that the sliding shoe pair is in the state of oil film contact or a mixed contact state of oil film and no oil film; the roughness of the bearing surface of the sliding shoe pair In particular, the roughness of the side with the higher surface hardness of the slide shoe should be strictly controlled to make the surface as smooth as possible. When the lower surface of the end cover is used as the pressure bearing surface of the slide shoe, the shape of the end cover surface will Error and roughness are difficult to meet the requirements

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