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Universal joint transmission inclined shaft type plunger pump

A technology of plunger pump and universal joint, which is applied in the field of oblique shaft plunger pump, can solve the problems of difficulty in processing gears, poor interchangeability, and high machining accuracy of gears, and achieves difficult processing and good interchangeability. Sexual, cost-effective effects

Pending Publication Date: 2022-06-03
SHIJIAZHUANG TIEDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although this method can achieve the purpose of avoiding the collision contact between the plunger and the cylinder and improving the stress situation, the axis of the main shaft and the rotation axis of the cylinder are not on the same straight line, but form an included angle, so that the lifting This increases the processing difficulty of the gears; moreover, this kind of pump needs to adjust the meshing position of the gears during assembly and replacement, and has high requirements on the machining accuracy of the gears, and has poor interchangeability

Method used

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  • Universal joint transmission inclined shaft type plunger pump
  • Universal joint transmission inclined shaft type plunger pump
  • Universal joint transmission inclined shaft type plunger pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

see Figure 1-Figure 3 , a universal joint-driven oblique-axis plunger pump, including a plunger pump body composed of a front pump body 6 and a rear pump body 1, and a main shaft 7 is installed in the front pump body 6 through a bearing assembly 5, and the main shaft 7 It is a stepped shaft. The inner spline hole is provided at the central axis of the end of the main shaft 7 that penetrates into the pump body. The end face of the end of the main shaft 7 that penetrates into the pump body is evenly distributed with seven ball sockets. The ball sockets are annular with the axis of the main shaft 7 as the center. distributed.

[0022] The rear pump body 1 is provided with an oil inlet, an oil outlet, and a drain hole. The rear pump body 1 is provided with a distribution plate 2 and a cylinder block 3, and a spherical flow distribution structure is formed between the distribution plate 2 and the cylinder block 3. , the axis of the cylinder block 3 and the axis of the main shaft 7...

Embodiment 2

Embodiment 3

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Abstract

The invention belongs to the technical field of hydraulic systems of engineering machinery, and discloses an inclined shaft type plunger pump driven by a universal joint. Comprising a pump body, a main shaft and a cylinder body, the main shaft and the cylinder body are arranged in the pump body, a plunger is arranged between the main shaft and the cylinder body, the main shaft and the cylinder body are connected through a universal joint, the universal joint is a constant-velocity universal joint, and the two ends of the universal joint are arranged on the central axis of the main shaft and the cylinder body respectively; the invention solves the problems of poor interchangeability and high manufacturing cost when the cylinder body and the main shaft are in gear transmission in the prior art.

Description

technical field [0001] The invention relates to the technical field of hydraulic systems of construction machinery, in particular to an oblique-axis plunger pump driven by a universal joint. Background technique [0002] The axis of the main shaft of the inclined-axis piston pump is not on the same line with the rotation axis of the cylinder, but forms an included angle; the inclined-axis piston pump relies on the reciprocating motion of the piston in the cylinder to seal the working cavity. The volume changes to achieve oil absorption and oil pressure. Because of its small volume, small friction loss, strong self-priming ability, and high starting efficiency, it is widely used in hydraulic systems. [0003] The utility model patent with the application number of 201822010086.2 provides a synchronous oblique axis plunger pump, which is an oblique axis plunger pump using gear transmission. The oblique axis plunger pump mainly includes a pump body, a bearing cover, a flow dist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B1/2014F04B1/128
CPCF04B1/2014F04B1/128
Inventor 高振山王士涛郭京波郝如江李蕾
Owner SHIJIAZHUANG TIEDAO UNIV
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