Bogie hanging system parameter testing device and method

The technology of a suspension system and test method is applied in the field of test of bogie suspension parameters to achieve the effects of overcoming friction and blocking force interference, improving test accuracy and improving test efficiency

Active Publication Date: 2014-08-27
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, how to simulate the actual working conditions of the bogie load and test the parameters of the bogie, especially the test of the dynamic parameters of the bogie suspension system, currently there is no mature technical specification in China

Method used

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  • Bogie hanging system parameter testing device and method
  • Bogie hanging system parameter testing device and method
  • Bogie hanging system parameter testing device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0067] Taking CRH380 series bogie as an example

[0068] 1. Take the static vertical stiffness test as an example, according to the above test process:

[0069] A. Install the bogie on the test platform, refer to figure 2 , the wheel pair 7 is installed on the wheel pair fixture 8, the wheel pair fixture is installed on the lower three-dimensional force measuring platform 9, and the lower three-dimensional force measuring platform is fixed on the motion platform;

[0070] B. By adjusting the appropriate height of the motion platform, connect the upper three-dimensional force measuring platform on the bogie bolster and the gantry frame, and fix the upper part of the bogie;

[0071] C. By raising and lowering the motion platform, the collected force value of the lower three-dimensional force measuring platform is the same as the test force value given in the test program, and then the initial height position of the motion platform is determined;

[0072] D. After the bogie...

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Abstract

A bogie hanging system parameter testing device comprises a gantry frame, a moving platform and actuators. Two upper three-dimensional force measuring platforms are connected to the lower face of a horizontal beam of the gantry frame. Switching plates are arranged on the upper three-dimensional force measuring platforms. Locating holes are formed in the switching plates. The upper three-dimensional force measuring platforms are connected with a bogie upper swing bolster through the locating holes and the switching plates. Four lower three-dimensional force measuring platforms are arranged on a lower moving platform. A clamp is arranged in each lower three-dimensional force measuring platform. The clamps are connected with wheel pairs of a tested bogie. Three vertical actuators are connected below the moving platform. The front face of the moving platform is connected with a horizontal actuator. The side face of the moving platform is connected with a longitudinal actuator. According to the testing method of the device, convenience and quickness are achieved, testing efficiency is improved, a testing structure is simple, and the rigidity parameters of a primary suspension system and a secondary suspension system in a reorganize-and-outfit state can be tested. When loading force borne by a bogie suspension is tested, the three-dimensional force measuring platforms are used for measuring stress situations in various directions directly. Interference of friction force and retardation force between the platforms and the bogie and between the platforms and a foundation is overcome, and testing accuracy is high.

Description

[0001] technical field [0002] The invention relates to a method for testing bogie suspension parameters, comprising a test method for testing static parameters and dynamic parameters of a bogie suspension system and a test device for testing. Background technique [0003] With the continuous progress of the railway industry and the continuous increase of the speed of rail vehicles, the operating performance of rail vehicles depends more and more on the parameter characteristics. A large number of research results have proved that the value of bogie suspension parameters has a direct relationship with vehicle driving safety and passenger comfort. Too much or too little suspension stiffness will affect the running performance of the train. The bogie suspension stiffness parameter is It is an important index to evaluate the running performance of rail trains. [0004] After the completion of the bogie, there are obvious differences between the overall stiffness and overal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/10
CPCG01M17/10
Inventor 梁树林张鹏谭富星
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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