Double-moving endurance experiment apparatus of vibration damper

A technology of durability test and shock absorber, which is applied in the direction of vibration test, measuring device, machine/structural component test, etc., and can solve problems such as large vibration, poor response of belt drive, and large noise
CN101403656AInactive Publication Date: 2009-04-08CHERY AUTOMOBILE CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHERY AUTOMOBILE CO LTD
Publication Date
2009-04-08
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a vehicle shock-absorber double-acting endurance test apparatus, comprising a hydraulic servo actuator, a hydraulic servo controller and a test bracket. The hydraulic servo controller comprises a system controlling a waveform formed by folding two sine waves with the different frequencies and swings; the hydraulic servo controller is connected with the hydraulic servo actuator; the test bracket comprises a gantry and the hydraulic servo actuator is fixed on a beam of the gantry; and the hydraulic cylinder of the hydraulic servo actuator is arranged downward and a power output shaft is fixed with the upper end of the shock-absorber to be tested and the lower end of the tested shock-absorber is fixed under the gantry. The invention can respectively brings an action with different frequencies and swings to the upper and lower ends of the shock-absorber to respectively simulate the movement of wheels and vehicle body; and the control precision is high and the noise is lower.
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Description

technical field

[0001] The invention belongs to a kind of vibration test device, which is used for testing the shock absorber on the automobile suspension, in particular to a double-action durability test device which respectively applies an action of different frequency and amplitude to the upper and lower ends of the automobile shock absorber . Background technique

[0002] The shock absorber is one of the important parts of the automobile suspension, and its durability must be verified during the vehicle development process. According to the domestic shock absorber industry standard QC / T 545-1999, there are two types of shock absorber durability tests: One is the single-action method, that is, the action is performed at a single frequency and a single amplitude. This method will be eliminated in the new national standard for shock absorbers. The other is the double-action method, that is, the upper and lower ends of the shock absorber are respectively applied. An action ...

Claims

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