Piston shoe and supporting disc friction structure

A technology for supporting discs and sliding shoes, which is applied to parts of pumping devices for elastic fluids, liquid displacement machines, variable displacement pump components, etc., and can solve the problem of easy wear of sliding shoes and poor stability of frictional movement of sliding shoes , uneven friction between the sliding shoe and the support plate, etc., to reduce the working load, improve the service life and work reliability

Pending Publication Date: 2022-02-15
BEIJING HANGKE ENGINE CONTROL SYST SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problems of the traditional plunger pump structure that the sliding shoe is e

Method used

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  • Piston shoe and supporting disc friction structure
  • Piston shoe and supporting disc friction structure
  • Piston shoe and supporting disc friction structure

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] Example 1 provides a friction structure of a boot and a support disk, including a shoe 1, a friction conversion tray 3, a support disk 4, and a holder 2; the holder is used to maintain a slider;

[0026] The friction transformation disk is disposed between the skirt and the support disk;

[0027] A connection from the outer edge portion of the holder is formed from the outer edge portion of the friction conversion disk such that the holder can be rotated with the friction conversion disk;

[0028] The friction conversion disk corresponds to the disk surface of the support disk as a friction surface; the friction conversion disk corresponds to the surface of the boots to be a holding surface 9;

[0029] A plurality of through-oil holes are opened on the friction conversion disc, and a plurality of through-oil holes are uniformly arranged, and each of the oil holes corresponds to a boot.

[0030] The outer edge portion of the casing is axially formed with a neck, and the neck...

Example Embodiment

[0034] Example 2 provides a friction structure of a boot and a support disk, including a shoe 1, a friction conversion tray 3, a support plate 4, and a holder 2; the holder is used to maintain the boots;

[0035] The friction transformation disk is disposed between the skirt and the support disk;

[0036] A connection from the outer edge portion of the holder is formed from the outer edge portion of the friction conversion disk such that the holder can be rotated with the friction conversion disk;

[0037] The friction conversion disk corresponds to the disk surface of the support disk as a friction surface; the friction conversion disk corresponds to the surface of the boots to be a holding surface 9;

[0038] A plurality of through-oil holes are opened on the friction conversion disc, and a plurality of through-oil holes are uniformly arranged, and each of the oil holes corresponds to a boot.

[0039] The outer edge portion of the friction conversion tray is axially extended, an...

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PUM

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Abstract

The invention relates to a high-pressure fuel oil plunger pump piston shoe friction pair structure, in particular to a piston shoe and supporting disc friction structure which comprises a piston shoe, a friction conversion disc, a supporting disc and a retainer, wherein the retainer is used for retaining the piston shoe; the friction conversion disc is arranged between the piston shoe and the supporting disc; a connection is formed from an outer edge portion of the retainer and an outer edge portion of the friction conversion disc so that the retainer and the friction conversion disc can rotate integrally; and the disc surface, corresponding to the supporting disc, of the friction conversion disc is a friction surface. The working load of the piston shoe in a plunger pump is reduced, the weak link that the piston shoe of the high-pressure fuel plunger pump in the prior art is easy to wear is solved, the service life of the high-pressure fuel plunger pump can be prolonged, and the working reliability of the high-pressure fuel plunger pump can be improved.

Description

technical field [0001] The invention relates to a friction pair structure of a sliding shoe of a high-pressure fuel plunger pump, in particular to a friction structure of a sliding shoe and a support plate. Background technique [0002] In the prior art, the plunger pump usually has parts such as a sliding shoe, a cage, a support plate, and a swash plate. The sliding shoe and the supporting plate are tightly fitted to form a pair of high-speed motion friction pairs during the working process. For the large area difference of the support plate, there are technical problems such as the complex motion force state, large contact load on the working surface, easy wear, easy overheating, etc., which is usually one of the bottleneck factors that limit the life of the plunger pump. Especially in certain environments, such as the use of high-pressure fuel plunger pumps. Contents of the invention [0003] The purpose of the present invention is to solve the technical problems of th...

Claims

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Application Information

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IPC IPC(8): F04B1/122F04B53/00F04B53/18
CPCF04B1/122F04B53/00F04B53/18
Inventor 王小春代杰李震吴兴格黄蕾王琦桢
Owner BEIJING HANGKE ENGINE CONTROL SYST SCI & TECH
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