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Flow distribution mechanism for floating cylinder body of inclined shaft pump

A floating cylinder and inclined shaft technology, which is applied in the direction of machines/engines, liquid variable displacement machines, pumps, etc., can solve the problems of reduced operating efficiency and eccentric wear of inclined shaft pumps

Active Publication Date: 2021-11-05
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a floating cylinder body flow distribution mechanism of an inclined-axis pump to solve the technical problems in the prior art that the cylinder body is prone to serious eccentric wear after being oscillated by the overturning moment and the operating efficiency of the inclined-axis pump is reduced.

Method used

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  • Flow distribution mechanism for floating cylinder body of inclined shaft pump
  • Flow distribution mechanism for floating cylinder body of inclined shaft pump
  • Flow distribution mechanism for floating cylinder body of inclined shaft pump

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0039] Such as figure 1 As shown, the flow distribution mechanism of the floating cylinder of the inclined axis pump includes a housing 1 , an end cover 2 , a cylinder 5 , a transmission ring gear 3 , a distribution plate 6 , a plunger connecting rod assembly 12 and a double row angular contact ball bearing 7 . The end cover 2 is fixed on the housing 1, the distribution plate 6 is fixed on the inner side of the end cover 2, the transmission ring gear 3 is rotatably assembled in the housing 1 through the double row angular contact ball bearing 7, and the cylinder body 5 is assembled on the transmission ring gear 3 Inside, the transmission ring gear 3 can drive the cylinder body 5 to rotate, and the cylinder body 5 can move axially and swing relative to the transmission ring gear 3. There is a compression spring 8 between the cylinder body 5 and the transmission ring gear 3, and the compression spring 8 is used to drive the cylinder body 5 so that the cylinder body 5 remains att...

specific Embodiment 2

[0051] The difference from Embodiment 1 is that in Embodiment 1, the compression spring 8 constitutes an elastic member that presses the cylinder body 5, and a mounting groove 9 for mounting the compression spring 8 is opened at the center of the front end of the cylinder body 5 . In this embodiment, the compression spring can be replaced by an elastic rubber block. In other embodiments, the installation slot is opened at the center of the blocking wall. In other different embodiments, installation grooves for cooperating with the elastic member to press are provided on both the blocking wall and the cylinder body. Or, in other different embodiments, the installation groove is canceled, the guide post is provided on the cylinder body, and the compression spring is fixedly sleeved on the guide post.

specific Embodiment 3

[0053] The difference from Embodiment 1 is that in Embodiment 1, the transmission ring gear 3 is rotatably assembled in the housing 1 through double row angular contact ball bearings 7 . In this embodiment, the bearings are other different types of bearings such as deep groove ball bearings or joint bearings. In other embodiments, the bearings can also be replaced by bushings.

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Abstract

The invention provide a flow distribution mechanism for a floating cylinder body of an inclined shaft pump. The flow distribution mechanism aims to solve the technical problems that in the prior art, after the cylinder body swings due to overturning moment, eccentric wear is likely to be serious, and the operation efficiency of the inclined shaft pump is reduced. The flow distribution mechanism for the floating cylinder body of the inclined shaft pump comprises a shell, an end cover, a flow distribution disc, a cylinder body and a transmission gear ring; the transmission gear ring comprises a driven bevel gear and further comprises a barrel body extending towards the end cover, the barrel body is rotationally assembled in the shell around the axis of the shell, a blocking wall is arranged in the barrel body, and a through hole is formed in the blocking wall; the cylinder body is assembled in the barrel body in a sliding mode, a swing gap is formed between the cylinder body and the barrel body, an annular arc boss is arranged on the periphery of the cylinder body, and the top of the arc boss is in clearance fit with the inner wall of the cylinder body; a transmission groove extending in the axial direction of the cylinder body is formed in the arc boss, a transmission pin is arranged on the barrel body, and the transmission pin penetrates into the transmission groove to drive the cylinder body to rotate; and an elastic piece is pressed between the blocking wall and the cylinder body and is used for applying elastic force towards the flow distribution disc to the cylinder body.

Description

technical field [0001] The invention relates to the technical field of inclined-axis pumps, in particular to a flow distribution mechanism for a floating cylinder of an inclined-axis pump. Background technique [0002] Hydraulic transmission has outstanding advantages such as high power density ratio and flexible control, and is widely used in aerospace, construction machinery, marine equipment and other fields. The hydraulic pump is the core power component of the hydraulic transmission system, providing pressure and flow for the hydraulic system. Among all kinds of hydraulic pumps, the inclined-axis plunger pump, that is, the inclined-axis pump, has the advantages of less friction pairs, large inclination angle, small volume and high efficiency, and is one of the most widely used hydraulic pumps. [0003] For example, the Chinese utility model patent whose authorized announcement number is CN207470369U has just announced a kind of inclined axis pump that drives the cylind...

Claims

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Application Information

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IPC IPC(8): F04B1/2042F04B1/2021F04B1/2035F04B1/2064
CPCF04B1/2042F04B1/2035F04B1/2064F04B1/2021
Inventor 李东林杨芳李聚波刘明伟王军华李阁强王帅徐莉萍
Owner HENAN UNIV OF SCI & TECH