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Car crash simulating trolley device

A technology for simulating benches and trolleys, applied to measuring devices, vehicle testing, instruments, etc., can solve the problems of troublesome operation, low waveform accuracy, low efficiency, etc., and achieve the effect of simple structure and convenient operation

Inactive Publication Date: 2014-12-24
AUTOMOBILE RES INST OF TSINGHUA UNIV IN SUZHOU XIANGCHENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, the existing trolley device is relatively simple, but the waveform accuracy is not high, the operation is cumbersome, and the efficiency is low

Method used

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  • Car crash simulating trolley device

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Such as Figure 1~4 As shown, a vehicle collision simulation trolley device includes a fixed guide rail 4 arranged horizontally, a trolley 3 slidably arranged on the fixed guide rail 4, and a pneumatic device for providing a positive driving force to the trolley 3 to push the trolley 3 to move horizontally. Assembly 1, the pneumatic assembly 1 is arranged at one end of the fixed guide rail 4, and the trolley device also includes a hydraulic assembly 2 for providing reverse driving force to the trolley 3 and a servo control system connected with the pneumatic assembly 1 and hydraulic assembly 2, the pneumatic assembly 1 The assembly 1 and the hydraulic assembly 2 are sequentially arranged in the length direction of the fixed guide rail 4, and the servo control system is used to control the pneumatic assembly 1 and the hydraulic assembly 2 to provide forward drivi...

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Abstract

The invention provides a car crash simulating trolley device. The trolley device comprises a fixing guide rail which is horizontally arranged, a trolley which is glidingly arranged on the fixing guide rail, and a pneumatic assembly which supplies a positive driving force to the trolley to push the trolley to horizontally move, wherein the pneumatic assembly is arranged at one end of the fixing guide rail. The trolley device particularly comprises a hydraulic assembly which provides a reverse driving force to the trolley, and a servo control system which is connected with the pneumatic assembly and the hydraulic assembly; the pneumatic assembly and the hydraulic assembly are sequentially arranged along the length direction of the fixing guide rail; the servo control system is used for controlling the pneumatic assembly and the hydraulic assembly to respectively provide a positive driving force and the negative driving force to the trolley. According to the trolley device, the pneumatic assembly is controlled to provide a constant positive driving force, and the hydraulic assembly is controlled to provide a variable negative driving force; therefore, the combined force of the pneumatic-hydraulic assembly is utilized to generate a positive acceleration to realize the accurate control of a shock wave.

Description

technical field [0001] The invention belongs to the field of automobile collision safety, and in particular relates to an automobile collision simulation trolley device. Background technique [0002] The existing car collision simulation trolley device uses a motor to pull the trolley until it reaches the specified collision speed. The metal olive head protruding from the front of the trolley is inserted into the PU pipe to achieve the purpose of deceleration through friction and simulate a collision accident. However, in order to obtain the specified acceleration waveform, continuous debugging is required, and the operation is troublesome. The PU tube is a consumable and requires maintenance, and the PU tube needs to be replaced during two tests. After a collision, the trolley cannot be automatically reset, and the trolley needs to be manually removed from the PU tube with a jack. Generally speaking, the existing trolley device is relatively simple, but the waveform accura...

Claims

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Application Information

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IPC IPC(8): G01M7/08G01M17/007
Inventor 许述财洪伟施金金许杨杨李淑磊何桂英安剑英陈卫静
Owner AUTOMOBILE RES INST OF TSINGHUA UNIV IN SUZHOU XIANGCHENG
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