Device for measuring secondary suspension parameters of railway vehicle bogie based on simulated frame

Abstract

The invention relates to a device for measuring secondary suspension parameters of a railway vehicle bogie based on a simulated frame. The device comprises a plurality of weights (h), the simulated frame (i) for test, a set of moving flame (j) for supporting the simulated frame for test, two secondary three-dimensional force platforms (k), a longitudinal actuator (1) of the simulated frame, two transverse actuators (m) of the simulated frame, two vertical actuators (n) of the simulated frame and four sets of vertical pull-down pin sensors and connecting rods (o), wherein the weights (h) are mounted on the simulated frame (i); the secondary three-dimensional force platforms (k) are respectively connected with the simulated frame (i) and a railway vehicle bogie to be measured (II); a spindle (7) for supporting the simulated frame is supported by the moving flame (j) for supporting the simulated frame; and one ends of the transverse actuators of the simulated frame are respectively hinged with framework locating supports and the other ends thereof are connected with the simulated frame. The device can be used for dynamic and static measurement of secondary comprehensive parameters of various railway vehicle bogies.

Description

technical field The invention relates to comprehensive parameter testing equipment for a rail vehicle bogie, in particular to a bogie characteristic parameter detection platform for measuring the comprehensive parameters of the secondary suspension of the bogie based on a simulated car body. Background technique A typical railway vehicle bogie is mainly composed of a frame, two-series suspension, wheelset, etc., on which the vehicle body is carried, and it is the running mechanism of the rail vehicle. The main parameters of the rail vehicle bogie include the vertical stiffness, longitudinal stiffness, transverse stiffness, slewing stiffness, anti-diamond stiffness and slewing friction moment of the primary and secondary series. The size and matching of each parameter determine the bogie dynamics. Performance is good or bad, in line operation, these parameters directly affect the speed, stability, comfort and safety reliability of the train. Therefore, it is very necessary t...

AI Technical Summary

Problems solved by technology

However, the four-column structure mentioned in this patent has a complex structure, high precision requirements for parts processing and assembly, and high equipment manufacturing and maintenance costs.

At the same time, the test system can only test the bogie product alone, and cannot test the bogie with the car body

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