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Axial plunger pump cylinder body

A technology for axial piston pumps and cylinders, applied in the field of high-pressure and high-power axial piston pumps, can solve the problems of large system failure and hydraulic pump scrapping, and achieve the effects of low cost, improved reliability, and convenient installation

Inactive Publication Date: 2010-09-15
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the cylinder hole copper sleeve is pulled out, the expensive hydraulic pump may be scrapped instantly, and the large system will also be paralyzed

Method used

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  • Axial plunger pump cylinder body
  • Axial plunger pump cylinder body
  • Axial plunger pump cylinder body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Axial piston pump cylinder reference of the present invention figure 1 . Bolt holes are opened on the base body 1 of the cylinder body to improve the machining accuracy of the outer circular surface 3 and the end face 6 of the base body 1 of the cylinder body respectively, and become the installation and positioning reference of the baffle plate 4 . The baffle plate 4 is fixed on the base body of the cylinder block by bolts. The baffle plate 4 has a certain thickness to ensure sufficient rigidity and strength. The positions corresponding to the baffle plate and the cylinder bore are opened with holes respectively, and are fixed on the cylinder body by bolts 5 .

[0014] In order to make the axial piston pump cylinder meet different use requirements under different working conditions, the size of the axial piston pump cylinder has the following requirements: the diameter D of the baffle hole of the axial piston pump cylinder is larger than the cylinder hole The diamet...

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Abstract

The invention relates to a high-pressure high-power axial plunger pump, in particular to an axial plunger pump cylinder body. The axial plunger pump cylinder body is arranged on the wall of a main box of a gear box. In the invention, a baffle plate is arranged on the end surface of the combined high-power axial plunger pump cylinder body, and a copper cylinder hole sleeve is fixed in a cylinder hole; when a hydraulic pump works, a plunger does high-speed alternating motions in the cylinder hole to avoid sleeve pulling faults. The axial plunger pump cylinder body has simple structure without greatly changing the existing product and also has low cost and convenient mounting. By using the invention, the problem of sleeve pulling of the copper sleeve in the cylinder body of the high-power axial plunger pump along with the improvement of the working pressure and the rotating speed is solved, and the reliability of the high-power axial plunger pump is greatly improved.

Description

technical field [0001] The invention relates to a high-pressure and high-power axial plunger pump, more specifically to a cylinder block of the axial plunger pump. Background technique [0002] The hydraulic pump motor system has good continuously variable speed performance and high power density, and is widely used in construction machinery, agricultural machinery, machine tools, plastic machines, metallurgy, mining, petrochemicals, railways, ships, light industrial machinery, tracked armored vehicles and other industries. It is widely used and has an important impact on the development of my country's national economy. [0003] The Airbus A380 increased the pressure of the hydraulic system from 21MPa to 35MPa, and the weight of the hydraulic system was reduced by 1t. The research of the U.S. Navy shows that if the aircraft hydraulic system is increased from 21MPa to 55MPa, the weight of the aircraft hydraulic system can be reduced by 30%, and the volume can be reduced by 4...

Claims

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Application Information

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IPC IPC(8): F04B53/14
Inventor 李雪原胡纪滨苑士华荆崇波王智慧
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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