Split type grinder, wheel tread cleaning device of railway vehicle, and railway vehicle

Abstract

The invention relates to a split type grinder, a wheel tread cleaning device for a railway vehicle, and the railway vehicle. The split type grinder comprises: a connecting piece, wherein the connecting piece is detachably mounted on a brake head of the railway vehicle; and at least two grinding sub-assemblies, wherein each grinding sub-assembly has a friction body and a support body, the friction body is arranged to provide a surface for frictional contact with a wheel tread of a rail vehicle and is connected to the connecting piece by the support body, and a gap is provided between at least two of the grinding sub-assemblies. The split type grinder is easy to manufacture, install and maintain, the temperature of the friction surface of the grinder in the using process can be effectively reduced, the probability that a wheel is scratched due to metal inlaying of the grinder is reduced, the influences of friction vibration, impact and noise are reduced, and the whole system is more stable and reliable.

Description

technical field [0001] The invention relates to the technical field of heat exchange, in particular to a split grinder, a wheel tread cleaning device for a rail vehicle and the rail vehicle. Background technique [0002] Since high-speed trains use tread cleaning devices to the present, the abrasives in the tread cleaning devices have the functions of tread cleaning, wheel-rail thickening, wheel shaping, etc., and can effectively improve the braking performance and comfort performance of trains. This has been verified in the actual use process. [0003] However, the existing abrasives still have some deficiencies in aspects such as structural configuration, use effect, safety performance, manufacturing and maintenance costs, etc., which can be further improved and optimized. For example, the grinder used in high-speed trains is in direct contact with the wheel tread during use. Due to the high speed of the wheel and the large friction area between the grinder and the wheel,...

AI Technical Summary

Problems solved by technology

[0003] However, there are still some deficiencies in the existing abrasives such as structural construction, use effect, safety performance, manufacturing and maintenance costs, which can be further improved and optimized

For example, the grinder used in high-speed trains is in direct contact with the wheel tread during use. Due to the high speed of the wheel and the large friction area between the grinder and the wheel, a large amount of heat and wear will be generated during the friction process. Chips, and the temperature of the friction surface of the grinding wheel will be very high, which will lead to a decrease in surface hardness, so that the grinding wheel and the wheel tread will directly fit closely, and the grinding chips will adhere to the wheel surface and be difficult to discharge

As metal debris builds up, this long-term accumulation can easily lead to the generation of metal inlays, which may scratch the wheel tread in severe cases, posing a running risk

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