Split type track wheel

Abstract

The invention provides a split type track wheel which is provided with a cylindrical wheel core, where the axial lead of the wheel core is provided with an installation through hole in a penetrating manner, at least one annular wheel body used for simulating a steel track is sleeved on the wheel core, the side surface of the wheel core, corresponding to the wheel body, is provided with a positionlug boss which is used for axially stopping the wheel body, the surface of the positioning lug boss, which faces towards the wheel body, is in tightly contact with the end face of the wheel body; andthe surface of the positioning lug boss, which is in contact with the wheel body, is provided with a plurality of threaded holes, and first bolts penetrating through the wheel body and being respectively screwed into the threaded holes are used for fixedly connecting the wheel body with the wheel core together. The split type track wheel provided by the invention is replaced by only screwing the bolts for disassembly and re-installing the wheel body, thus the matching of an injection press in the prior art is saved. Meanwhile, because of needing less materials for manufacturing the wheel body, the waste materials due to the discarded track wheel are reduced, and the maintenance cost of the whole test stand is reduced.

Description

technical field [0001] The invention relates to railway vehicle testing technology, in particular to a split rail wheel. Background technique [0002] When studying the relevant performance of train braking, the train braking performance test bench is usually used to simulate the train braking process. Due to space constraints, the train braking performance test bench usually uses the rotation of circular rail wheels to simulate " Infinitely long rails". [0003] figure 1 It is a rail wheel mostly used in the train brake performance test bench in the prior art. Such as figure 1 As shown, the track wheel 10 is a disc with a slightly thicker central position. The shape of the peripheral side of the disc is the same as the surface profile of the rail. The center of the track wheel 10 is provided with a mounting hole 11. Mounting holes 11, the two ends of the wheel shaft are supported by bearings, driven by the power end of the train braking performance test bench, the wheel...

AI Technical Summary

Problems solved by technology

[0004] This track wheel in the prior art adopts an integral structure, so when the side of the track wheel needs to be replaced due to wear and tear, it needs to be disassembled with an oil injection press, and it also needs to be installed by shrink fitting or oil injection pressure. It is very inconvenient to complete the reinstallation of the wheel shaft and the mounting hole 11; and when this track wheel is changed, it is the whole track wheel that is replaced, and the changed track wheel becomes a waste, which greatly wastes materials, thereby making the entire track wheel The maintenance cost of the test bench is relatively high; in addition, this integral track wheel must be cut off or the bearing seat and other equipment installed on the shaft must be removed before it can be removed. The same must be done during installation. This disassembly often destroys the original installation. Accuracy, the workload of reinstallation is heavy and difficult

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