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Test stand capable of simultaneously measuring railway stock bogie three-way rigidity

A technology for railway vehicles and bogies, which is applied in the field of railway vehicle bogie parameter measurement test devices, can solve the problems of simultaneous effective measurement of three-way stiffness of incompetent bogies, and achieve the effects of strong rigidity, simple structure, and easy maintenance

Inactive Publication Date: 2009-08-12
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no device that can effectively measure the three-way stiffness of the bogie at the same time

Method used

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  • Test stand capable of simultaneously measuring railway stock bogie three-way rigidity
  • Test stand capable of simultaneously measuring railway stock bogie three-way rigidity
  • Test stand capable of simultaneously measuring railway stock bogie three-way rigidity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0031] Figure 1-3 It is shown that a specific embodiment of the present invention is: a test bench for measuring the three-dimensional stiffness of a railway vehicle bogie at the same time, including a vertical loading mechanism 1, a wheel axle longitudinal loading mechanism 2, and a frame longitudinal positioning mechanism 3. The axle lateral loading mechanism 4 of the other wheel pair, the frame lateral positioning mechanism 5, the support base of the rail wheel, and the support base of the rail wheel have two types, namely the longitudinal support base 6 and the lateral support base 7.

[0032] figure 1 , 2 4-6 show that the support base of the rail wheel corresponding to the longitudinal loading mechanism is the longitudinal support base 6, which is composed of: the rail wheel tread is located in the longitudinal distribution, and the cross-sectional shape is the same as that of the rail. Two positioning cams 14, the two positioning cams 14 are fixed on the positioning ...

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Abstract

The invention discloses a measurement test bench capable of simultaneously measuring the three-way rigidity of a railway vehicle bogie. The longitudinal or transverse rail wheel support base is composed of: the upper support plate is connected with the lower longitudinal or transverse moving platform via a load sensor , The longitudinal or lateral movement platform is equipped with longitudinal or lateral rolling cylindrical rollers through bearings, and the two types of cylindrical rollers are respectively located on the longitudinal or lateral convex beams of the base. During the test, the rolling movement of the mobile platform and the base is realized through the rolling of the cylindrical rollers, with small friction and flexible movement. The parameters such as vertical stiffness, longitudinal stiffness, transverse stiffness and geometric structure of railway vehicle bogies can be measured on the test bench. The measured values ​​are accurate, the precision is high, the structure is simple, the operation is convenient, and the maintenance is easy.

Description

technical field [0001] The invention relates to a test device for measuring parameters of a railway vehicle bogie, in particular to a detection device for measuring various parameters such as stiffness and structural dimensions of a railway vehicle bogie. Background technique [0002] The railway vehicle bogie is mainly composed of wheelset, frame, primary and secondary suspension devices, on which the vehicle body is carried, which is the running mechanism of the vehicle. Its main parameters include wheel weight, self-weight, wheelset inner distance, fixed wheelbase, wheel-axle parallelism, vertical stiffness, longitudinal stiffness, lateral stiffness, etc. The size and matching of each parameter determine the dynamics of the vehicle bogie Whether the performance is good or bad, in the actual line operation, it directly affects the running speed, running stability, comfort and safety and reliability of the train. Therefore, it is very necessary to accurately measure and st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/08
Inventor 张卫华高云鹤李艳
Owner SOUTHWEST JIAOTONG UNIV
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