Method for reducing curved conduit rail surface corrugation

Abstract

The invention discloses a method for reducing curved conduit rail surface corrugation. A curved conduit speed monitoring system is arranged on a traveling vehicle. The method is characterized in that: the curved conduit speed monitoring system is a vehicle-mounted curved conduit rail surface corrugation monitoring system which consists of a vehicle speed sensor (3), a mileage counter (4), a data storage (2), a computer (1), an uplink and downlink command key (5) and a display control interface (6), wherein the vehicle speed sensor (3) in the monitoring system is used for acquiring a vehicle speed signal and transmitting a data signal to the mileage counter (4) and the computer (1) respectively; and the computer (1) is used for establishing bidirectional information transmission with the mileage counter (4) and the data storage (2) for a memory bogie transverse beam resonance frequency F respectively, reading the uplink and downlink command key (5) and outputting a display signal to the display control interface (6), so that a complete vehicle-mounted curved conduit rail surface corrugation monitoring system is constituted.

Description

Technical field: [0001] The invention relates to a method for reducing corrugation on a curved rail surface, and belongs to the technical category of reliability and safety of rail transit equipment. technical background: [0002] In rail transit, especially urban rail transit and subway, the corrugation of the track, especially the curve, has become a major disaster, for example: the track is quickly worn into waves, and the wheels vibrate strongly when passing, causing the wheel shock absorber to break, The wheels are peeled and scratched; the frame of the bogie is cracked, the brake support plate and antenna bracket installed on the frame are broken, and the motor hanger and gear box hanger installed on the frame are cracked and broken; the grounding brush is shaken and broken instantaneously. Electricity or breakdown of bearing oil film and burning of bearings. The damage of these non-accelerated running parts of the vehicle will not only cause strong vibrations and aff...

AI Technical Summary

Problems solved by technology

However, on the railway line, due to the variety of running vehicles, the wheelbase L and the resonance frequency F of the bogie are different, the speed VD of various trains passing through the curve is also different, even if a certain vehicle passes through the curve. Corrugation in the early stage, but another vehicle may run into the corrugation when passing the curve, so corrugation is not easy to occur, and it is not easy to expand; especially except for passenger cars that use H-shaped bogies that have high gain and long-term generalized resonance In addition, locomotives and freight cars use sun-shaped bogies with different resonance frequencies, low resonance gain, and short time. They basically do not cause corrugation and can run in corrugation.

[0008] It can be predicted that if the passenger-dedicated railway under construction today has a single type of vehicle, uses H-shaped bogies with high resonance gain, and uses the same curve speed, and does not consider the vehicle bogie wheelbase L, bogie resonance frequency F and Reasonable matching relationship of vehicle speed VJ on curves, and at the same time, if reasonable curve design is not paid attention to, there will be more frequent vehicle failures caused by curve grinding

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