Method for reducing curved conduit rail surface corrugation

A curve and wave grinding technology, applied in railway car body parts, railway vehicle shape measuring instruments, railway auxiliary equipment, etc., can solve the problems of inattentive curve design, single vehicle model, low resonance gain, etc. Maintenance workload and expenses, improving safety, and reducing the effect of vibration

Active Publication Date: 2011-11-23
北京唐智科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 ...

Method used

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  • Method for reducing curved conduit rail surface corrugation
  • Method for reducing curved conduit rail surface corrugation
  • Method for reducing curved conduit rail surface corrugation

Examples

Experimental program
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Effect test

Embodiment 1

[0105] The present invention proposes a monitoring device for reducing curved track surface corrugation and a vehicle and track improvement method. The maximum mileage SZ of the line, the design vehicle speed V(n) of each curve, the vehicle wheelbase L, the diameter D[mm] of the wheel where the vehicle speed sensor is located, the number of pulses sent by the vehicle speed sensor when the wheel rotates one revolution m, bogie The data memory 2 and the computer 1 including the longitudinal beam resonance frequency F, the data memory 2 can be the memory in the computer 1, or an external memory, the two are connected by a data bus, and the computer can pass through its contained peripherals, Obtain the data of two kinds of storage and data memory, store it in the data memory through the data bus, and also read the required data from the data memory; it also contains a vehicle speed sensor 3 installed on the circumference of the wheel whose diameter is D, and each wheel After one ...

Embodiment 2

[0107] In the vehicle improvement technology, in order to reduce the amplification factor, amplitude, and generalized resonance time or fluctuation times of the longitudinal beam generalized resonance, the vibration damping of the longitudinal beam can be increased by increasing the vibration damping of the longitudinal beam from above the wheels at both ends of the vehicle's bogie longitudinal beam to the bottom of the car box. A damper that does not affect the rotation of the bogie relative to the carriage. as attached Image 6 .

[0108] Shock absorbers with similar effects can also use air springs and metal rubber springs. as attached Figure 7 .

[0109] Figure 8-10 It is the simulation diagram of track corrugation after changing the damping of the bogie longitudinal beam. After increasing the damping of the bogie longitudinal beam, the generalized resonance of the front and rear wheels gradually decreases, so that the corrugation also gradually decreases.

Embodiment 3

[0111] It is also possible to obtain the current frame resonance frequency data F of each car and each bogie through the relevant interface with the existing subway fault monitoring device, and calculate the new suggested vehicle speed VJ according to the value after the resonance frequency changes by more than 70%.

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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...

Claims

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Application Information

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IPC IPC(8): B61K9/00
Inventor 唐德尧杨广武黄贵发黄建玲许艳华宋辛晖陈湘王俊智李运松
Owner 北京唐智科技发展有限公司
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