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Reciprocating sealing element detection test bed and reciprocating sealing detection method

A reciprocating motion and sealing detection technology, which is applied in the testing of mechanical components, testing of machine/structural components, measuring devices, etc., to achieve the effects of high detection reliability, simple structure, and verification of sealing pressure capability

Pending Publication Date: 2019-03-29
HUNAN LIANCHENG TRACK EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the prior art, there is no test device that can quickly and reliably detect and verify the performance of the key part of the oil pressure shock absorber—the seal. Component reliability, life

Method used

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  • Reciprocating sealing element detection test bed and reciprocating sealing detection method
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  • Reciprocating sealing element detection test bed and reciprocating sealing detection method

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Embodiment Construction

[0027] Combine below Figure 1 to Figure 4 Embodiments of the present invention are described in detail.

[0028] The reciprocating motion seal detection test bench is characterized in that it includes a fuel tank 1 filled with hydraulic oil, a piston rod 2 arranged along the central axis of the fuel tank 1 with one end extending into the fuel tank 1, and a piston rod 2 for driving the piston rod 2 to reciprocate along the central axis of the fuel tank 1 The transported electric eccentric wheel assembly 3 and the sealing test piece 4 are installed between the fuel tank 1 and the piston rod 2 to form a sealing friction pair to seal the fuel tank 1.

[0029] In the reciprocating motion seal test bench shown in the figure, one end of the piston rod 2 is inserted into the oil tank 1, and the oil tank is sealed by forming a sealing friction pair between the sealing test piece 4 and the piston rod 2, and the oil pressure shock absorber The setting structure of the guide support sea...

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Abstract

The invention discloses a reciprocating sealing element detection test bed. The test bed is characterized by comprising an oil tank provided with hydraulic oil, a piston rod arranged along a central axis of the oil tank and of which one end extends into the oil tank, and an electric eccentric wheel assembly used for driving the piston rod to reciprocate along the central axis of the oil tank; anda sealing test element is mounted on the oil tank and forms a sealing friction pair together with the piston rod to seal the oil tank. The actual operation condition of an oil pressure damper in a running process of a vehicle is simulated, the sealing test element is detected under different frequencies, strokes, speeds, oil pressures and temperatures, and the sealing reliability and the service life of the sealing test element are detected; and the detection requirements are met, the sealing pressure capacity, the maximum sealing speed, the maximum sealing working frequency, the working stroke capacity and the service life of the sealing test element are effectively verified, and the detection reliability is high. The invention further provides a reciprocating sealing detection method.

Description

technical field [0001] The invention relates to a test bench for reciprocating motion sealing parts and a method for detecting reciprocating motion sealing parts, which are used to detect the performance of key sealing parts in shock absorbers. Background technique [0002] Oil pressure shock absorber is an important part of railway locomotive and a component of the suspension system of railway locomotive bogie. The impact between the rails improves the comfort of passengers. During the working process, the piston unit of the hydraulic shock absorber reciprocates during work, and the volume of the piston rod intruding into the hydraulic oil also changes accordingly, resulting in a change in the pressure of the hydraulic oil. The performance of the hydraulic shock absorber directly affects the safety and comfort of driving. With the continuous improvement of vehicle operating speed, higher requirements are put forward for the reliability and life of the hydraulic shock abso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 戴谋军王三槐吴忠发樊友权
Owner HUNAN LIANCHENG TRACK EQUIP CO LTD
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