Loading device and method for car body strength test bed end wall

Abstract

The invention relates to a loading device and method for a car body strength test bed end wall. Longitudinal compression loading is exerted to the end walls on two sides of a tested car body simultaneously so as to simulate static strength testing conditions closest to actual use conditions accurately. The car body strength test bed end wall loading device comprises an end wall beam and an end wall loading beam, wherein the end wall beam and the end wall loading beam are respectively installed through a vertical support and a vertical beam installing seat. The end wall beam is used for fixing and clamping the end walls of the tested car body through a second conveying device, and the end wall loading beam is used for clamping and fixing the end walls of the tested car body through a first conveying device correspondingly. A loading oil cylinder is arranged on the end wall loading beam, the front end of the loading oil cylinder is fixedly connected with the first conveying device, and the end wall beam is fixedly connected with the second conveying device. A pressure sensor is arranged at the front end of the loading oil cylinder, the other end of the pressure sensor is fixedly connected with the first conveying device, and the pressure sensor is connected with a test bed control unit.

Description

technical field [0001] The invention relates to a loading device for an end wall of a car body strength test bench applied to rail vehicles, and belongs to the technical field of rail transportation. Background technique [0002] With the rapid popularization of domestic urban rail transit and the substantial increase in vehicle speed, higher design and use requirements are put forward for the end walls that constitute the main components of the vehicle body. [0003] In order to better understand the various performance indicators of the vehicle and ensure the processing quality of the provided vehicle structure, it is necessary to conduct a strength test on the vehicle body close to the actual working conditions, while the previous end wall test of the vehicle body can only load one end , there is no load applied to the end wall at the other end, such as using a top rod to act on the coupler mounting seat. [0004] This type of vehicle end loading test method cannot satis...

AI Technical Summary

Problems solved by technology

[0004] This type of vehicle end loading test method cannot satisfy the simulated state of simultaneously applying loads to the walls at both ends of the vehicle body. Therefore, the development of a device that can simultaneously apply pressure to the end walls at both ends of the vehicle body is of great significance to improving the safety performance of the vehicle. Significance

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