Stator of automobile power steering pump and method for designing stator curve

A power steering pump and stator technology, which is used in rotary piston pumps, fluid steering mechanisms, and rotary piston/oscillating piston pump components to reduce noise, improve comfort and safety, and achieve reasonable overall structural design. Effect

Inactive Publication Date: 2011-06-15
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The power steering pump manufactured by the above method has great deficiencies in energy saving and noise reduction.

Method used

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  • Stator of automobile power steering pump and method for designing stator curve
  • Stator of automobile power steering pump and method for designing stator curve
  • Stator of automobile power steering pump and method for designing stator curve

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the accompanying drawings. like figure 1 As shown, a stator of an automobile power steering pump is fixed in the body of the power steering pump. The middle cavity of the stator 2 is a compression chamber 1, and there are rotors and blades in the compression chamber 1. The blades move in the compression chamber 1 as the rotor rotates. Internal rotation, the cross section of the outer surface of the stator 2 is a perfect circular structure, and the peripheral curve of the cross section of the inner surface, that is, the stator curve of the stator 2, is formed by a large arc a 1 a 2 , great arc a 3 a 4 , small arc b 1 b 2 , small arc b 3 b 4 and four transition curves connecting these four arcs;

[0034] The transition curve is composed of a simple harmonic trapezoidal segmented combined motion law curve;

[0035]The described simple harmonic trapezoidal segmental combined motion law refer...

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PUM

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Abstract

The invention discloses a stator of an automobile power steering pump and a method for designing a stator curve. The cross section of the outer surface of the stator is of a regular round structure; the circumferential curve of the cross section of the inner surface of the stator, namely the stator curve of the stator, consists of a big circular arc ala2, a big circular arc a3a4, a small circular arc b1b2, a small circular arc b3b4 and four sections of transition curves for connecting the four circular arcs; and the transition curves consist of simple harmonic trapezoidal subsection combined motion law curves. The designing method comprises optimization of optimized target function acceleration Am, simulation solution and final obtaining of the optimized simple harmonic trapezoidal subsection combined motion law curves. The stator curve designed with the method does not generate 'hard impact' or 'rigid impact', does not cause 'soft impact' or 'flexible impact' due to the abrupt change of the acceleration, meets the requirements of the stator curve on no vibration impact and low noise, effectively eliminates the steering noise in a cab, and prolongs the service life of the power steering pump.

Description

technical field [0001] The invention relates to the manufacturing technology of an automobile power steering mechanism, in particular to a stator and a design method of a stator curve of an automobile power steering pump. Background technique [0002] With the rapid development of the automobile industry, people have higher requirements for the comfort and safety of automobiles. The steering performance of the automobile hydraulic system, as the main index to measure the performance of the automobile, directly affects the stability of the automobile operation. play an important role. [0003] The hydraulic power steering pump is a key component of the hydraulic power steering system. As the power source of the automobile power steering system, the performance of the power steering pump is directly related to whether the power steering system can operate normally and directly affects the steering safety of the car. , and the key part that affects the performance of the powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C15/00F04C2/344B62D5/06
Inventor 陶学恒刘秀坤里红杰
Owner DALIAN POLYTECHNIC UNIVERSITY
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