Force-reducing type pump cover

A pump cover and pump body technology, which is applied in the field of hydraulic pumps and auto parts, can solve problems such as pump body cracking, power steering function failure, and impact on driving safety, and achieve the effect of reducing the force-bearing area and ensuring reliability

Inactive Publication Date: 2012-01-25
DALIAN HYDRAULIC COMPONENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the steering pump, increasing the pressure must increase the strength of the parts. If the strength of the pump body is increased, the wall thickness must be increased. Otherwise, the pump body will crack and the power steering function will fail, affecting driving safety.

Method used

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  • Force-reducing type pump cover
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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] The pump cover is the basic component of the pump, and the structure of the force-reducing pump cover of the present invention is as follows: figure 1 As shown, there is an inner hole 1 at the center of the pump cover, the diameter of the inner hole 1 is the same as the diameter of the side plate boss, the diameter of the pump cover is D, and the diameter of the inner hole is d. The connection between the pump cover 1 and the pump body is a retaining ring for the hole, and the force on the retaining ring depends on the force-bearing area of ​​the pump cover The product of P and the system pressure, when the pressure increases, the strength of the pump body at the retaining ring is insufficient and it is easy to crack. The inner hole Φd of the pump cover is sealed with the side plate boss Φd, changing the stress area of ​​the pump cover to , the force acting on the pump cover is significantly reduced, so a new cover is used when the pressure is required to increase...

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PUM

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Abstract

The invention relates to a force-reducing type pump cover, wherein an inside hole is arranged at the center of the pump cover; the diameter of the inside hole is identical to that of a lug boss of a side plate; and the inside hole are the lug boss of the side plate are mounted in a matching manner; and the pump cover is connected with a pump body through a retainer ring. With the adoption of the force-reducing type pump cover provided by the invention, the diameter of the inside hole is identical to that of the lug boss of the side plate, and the inside hole and the lug boss of the side plate are mounted in a matching manner, so that the stressing area of the pump cover is reduced, and the strength of the pump cover still can satisfy with the requirements of design and use after the system pressure is increased; and meanwhile, the reliability of the pump body is ensured through the decrease of the force which is transferred onto the retainer ring through the pump cover and exerts on the pump body.

Description

technical field [0001] The invention relates to the field of auto parts, in particular to the technical field of hydraulic pumps. Background technique [0002] With the continuous application of hydraulic technology in the automotive industry. In view of the continuous increase in the load of dump and traction vehicles, the pressure and flow of the steering system are gradually increasing. When the OEM requires to increase the pressure, the installation and connection shape of the steering pump is not allowed to change because the steering system pipeline configuration and the engine have been determined. For the steering pump, increasing the pressure must increase the strength of the parts. If the strength of the pump body is increased, the wall thickness must be increased. Otherwise, the pump body will crack, making the power steering function invalid and affecting driving safety. Contents of the invention [0003] The purpose of the present invention is to provide a hy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B53/16
Inventor 郑丽霞王明贤仲照航
Owner DALIAN HYDRAULIC COMPONENT
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