Centroid-adjustable orbiting collision car

Abstract

The invention relates to a centroid-adjustable orbiting collision car for an orbiting collision test. The centroid-adjustable orbiting collision car comprises a car underframe, a traction car coupler,a liftable weight platform assembly, a collision headwall assembly, a movable car coupler mounting seat assembly, a wheelset axle box rigid fastening middle hinge linked balance frame assembly, and liftable weight platform side upright trusses. The centroid-adjustable orbiting collision car disclosed by the invention is simple in structure and capable of realizing the adjusting of the mounting height of the tested car coupler and the distribution adjusting of the finished car centroid and mass; and the rigid connection is adopted at the same time, thereby guaranteeing that the ability produced by the collision can be maximally acted on a tested piece. A strength test requirement of the tested piece is guaranteed, and then research on the orbiting car collision safety is directly promoted.

Description

technical field [0001] The invention belongs to the field of rail vehicle passive safety and relates to a special rail vehicle used for rail collision tests. More precisely, the invention relates to a rail collision vehicle. The trolley has the function of adjusting the mass and center of mass of the whole vehicle, and at the same time adopts rigid connection to ensure that the ability of collision can act on the test piece to the greatest extent. Background technique [0002] At present, the rapid development of my country's high-speed trains has driven the rapid development of my country's rail vehicle field. The improvement of train speed has put forward higher requirements for the passive safety of trains. Crash test rig is the most direct and effective method to study rail vehicle collision, but the cost of real vehicle collision is high and dangerous. At present, the commonly used method is to install the coupler buffer device, anti-climbing device, crush pipe, struc...

AI Technical Summary

Problems solved by technology

The rail vehicle three-axis multi-function collision platform designed by Central South University can not only do the collision test of rail vehicle components, but also can do the collision test of the whole rail vehicle, but it adopts a two-axis bogie with axle box springs. The collision energy is absorbed during the test, and the collision speed is required

The multifunctional rail vehicle crash test platform designed by Southwest Jiaotong University can realize the adjustment of the length, fixed distance and overall center of mass of the vehicle, but it uses two two-axle bogies. During the experiment, the axle box springs will absorb energy, and at the same time The frame adopts the splicing method, and its own rigidity is low

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