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Method for rapidly testing service life of flexible tube and test bed thereof

A technology of test bench and hose, which is applied in the direction of testing material strength by applying stable torsion force, testing material strength by applying repetitive force/pulsation force, and testing material strength by applying stable tension/pressure, which can solve time-consuming and expensive problems. Test and other issues to achieve the effect of shortening test time and test cost

Active Publication Date: 2012-05-30
SHANGHAI AUTOMOTIVE BRAKE SYST
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AI Technical Summary

Problems solved by technology

For hoses with a lifetime of tens of thousands of kilometers, road testing is a time-consuming and expensive test

Method used

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  • Method for rapidly testing service life of flexible tube and test bed thereof
  • Method for rapidly testing service life of flexible tube and test bed thereof
  • Method for rapidly testing service life of flexible tube and test bed thereof

Examples

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Embodiment Construction

[0025] According to the concept of the present invention, the following method for quickly testing the life of the hose is provided. The method simulates the environment of the hose on the car, and accelerates the aging of the hose through a higher-intensity test, thereby greatly shortening the test time.

[0026] Figure 2A The flow chart of the hose test method according to an embodiment of the present invention is shown. refer to Figure 2A As shown, the methods include:

[0027] Step S1, installing on a test bench according to the layout of the hose on the vehicle;

[0028] Step S2, according to the movement mode, vibration frequency, pulse pressure, and torsion angle of the hose in the automobile environment, set the torsion angle, torsion speed, compression and stretch displacement, stretch speed, pulse pressure, and pulse period;

[0029] Step S3, start the test bench for testing;

[0030] Step S4, recording the twisting times, stretching and compressing times, puls...

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Abstract

The invention relates to a method for rapidly testing a service life of a flexible tube and a test bed thereof, aiming at solving the problem that a long-time road test is needed for testing the flexible tube in a traditional way. The method comprises the following steps of: firstly, installing the flexible tube on a test bed according to a layout manner of a path of the flexible tube on an automobile; secondly, setting a torsion angle, a torsion velocity, a compressing and stretching displacement, a stretching velocity, a pulse pressure and a pulse cycle according to a motion mode, a vibrating frequency, a pulse pressure and a torsion angle of the flexible tube in a vehicular environment; thirdly, starting the test bed for test, wherein torsion number of times, stretching and compressing times, pulse cycle times and pulse pressures are recorded in the test process; and finally, stopping the test when at least parts of the torsion number of times, the stretching and compressing times, the pulse cycle times and the pulse pressures reach a set standard or the flexible tube is damaged.

Description

technical field [0001] The invention relates to product testing of cars, in particular to a method for quickly testing the life of a hose and a test bench thereof. Background technique [0002] In the automotive field, a length of hose is used to transfer oil. As cars tend to be driven for extended periods of time in various environments, the reliability and longevity of the hoses becomes a concern. At present, after the factory-made hoses have undergone various preliminary tests, if they are to be tested for life, they need to be actually installed on a car for a road test. For hoses with a lifetime of tens of thousands of kilometers, road testing is a time-consuming and expensive test. Contents of the invention [0003] The technical problem to be solved by the invention is to provide a method for quickly testing the life of a hose and a test bench thereof. [0004] The present invention first proposes a method for quickly testing the life of a hose, comprising the fo...

Claims

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Application Information

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IPC IPC(8): G01N3/00G01N3/08G01N3/22G01N3/32
Inventor 李辰龙
Owner SHANGHAI AUTOMOTIVE BRAKE SYST
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