JP2006143162A - Device for preventing lift and derailment of wheel of electromagnetic railroad vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a derailment preventive device capable of preventing any lift and derailment accident of wheels from rails during a strong earthquake or a railroad vehicle travels on a curve, and demonstrating the effect contributing to the safe operation of the railroad vehicle. <P>SOLUTION: The derailment preventive device performs strong attraction of rails by operating an electromagnet 1 via a lift sensor 2 and an on-vehicle computer against the lift of wheels 5 of a railroad vehicle from the rails 4 exceeding the permissible value, and as a result, it eliminates or suppress the lift. A derailment accident is prevented thereby, contributing to the safe operation of the railroad vehicle. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an apparatus for preventing derailment caused by lifting of a railroad train wheel from a rail.

  As conventional technology for preventing derailment from lifting off the rails of railroad train wheels, there are widely known physical devices or technologies such as flanges, lowering the center of gravity of vehicle bodies, or auxiliary rails.

  Hereinafter, a conventional derailment prevention device or technique will be described with reference to FIGS. Reference numeral 6 in FIG. 3 denotes a flange. The flange prevents the wheel from protruding from the rail and enables smooth operation by lifting the wheel from the effective rail during curve driving.

As for the conventional derailment prevention technology, there is an auxiliary rail as shown by 4A in FIG. The auxiliary rail suppresses the deviation of the wheel in the lateral direction, and as a result, tries to avoid the lifting of the wheel from the rail.
Further, there is a technique for lowering the center of gravity of the train car body as shown in FIG.

  With the conventional derailment prevention devices and technologies described above, it is possible to prevent or suppress strong vibrations caused by strong earthquakes, vehicle body resonances, etc., or lifting from the rails of the wheels that exceed the allowable value due to excessive speed during curve driving. There was a limit.

  An object of the present invention is to provide a safe operation of a railway train by electromagnetically handling the lifting of the wheel from the rail, separately from such conventional derailment prevention devices and techniques.

  In order to achieve the above object, the present invention operates an electromagnet fixed directly above the rail at the bottom of the railcar's bogie, and suppresses the lifting of the wheel from the rail as a result of its strong traction force. It is. The electromagnet operation timing is controlled by the on-board computer shutting off the train drive motor power by means of a lift detection sensor provided just above the rail at the lower end of the train carriage.

  The in-vehicle computer is also connected to the existing derailment prevention system, and establishes the operation of the electromagnet and the cancellation of the operation in software.

  The effect | action by the said problem-solving means is as follows. In other words, rails of railway train wheels are used to suppress or eliminate strong vibrations caused by strong earthquakes, vehicle body resonances, etc., or lifting from the rails of wheels that exceed the allowable value due to excessive speed when driving on a curve by powerful electromagnetic force. It is possible to prevent a derailment accident from rising.

  As described above, the electromagnetic force type railway train wheel lift derailment prevention device of the present invention can prevent a lift derailment accident from the rail of the wheel during a strong earthquake or curve driving, which contributes to the safe operation of the train. It is effective.

  In addition, the present invention has an effect that it can be adopted economically and inexpensively because only this apparatus is mounted on a railroad train and no improvement or repair of existing rails is required.

BEST MODE FOR CARRYING OUT THE INVENTION

  Hereinafter, an embodiment of the present invention will be described with reference to FIG.

  In FIG.1 and FIG.2, 1 is an electromagnet which pulls a rail, and is being fixed to the trolley | bogie. Reference numeral 2 denotes a lift detection sensor from the wheel rail, which is fixed to the carriage. 3 is an in-vehicle computer fixed to the vehicle body. 4 is a rail. 5 is a wheel body. 6 is flange. Reference numeral 7 denotes a carriage which is fixed to the vehicle body via a slowing device. Reference numeral 8 denotes a vehicle body.

  The 1 electromagnet is connected to the 2 lift sensor via the 3 onboard computer. In addition, the onboard computer 3 receives connection from the existing derailment prevention system in addition to the present invention.

  The operation of the above configuration will be described below. First, when the lift from the wheel rail is detected by the lift sensor 2, when the lift exceeding the allowable value is calculated by the in-vehicle computer 3, the drive motor power of the train is shut off, The electromagnet 1 is activated, and the magnetic force pulls the rail to eliminate or suppress the lifting of the wheel from the rail. As described above, it is possible to prevent the derailment accident that the railway train wheel lifts from the rail.

  The operation and release of the operation of the electromagnet 1 are also controlled by the existing derailment prevention system via the on-vehicle computer 3. Therefore, a railroad train derailment accident can be prevented in advance.

  The partial side view of the railroad train which shows embodiment of this invention   Cross section of the railway train   Sectional view of a conventional railroad train derailment prevention device   Side view of derailment prevention technology for the railway train

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electromagnet 2 Lift detection sensor 3 Car-mounted computer 4 Rail 4A Auxiliary rail 5 Wheel 6 flange 7 Carriage 8 Car body

Claims (1)

  Detecting the lift from the rails of the wheel, which is fixed directly above the rail at the bottom of the bogie of the train, and the rail at the bottom of the bogie against the lift that exceeds the allowable value due to the operation of the in-vehicle computer An electromagnetic force type railway train wheel lift derailment prevention device that eliminates or suppresses the lift as a result by operating an electromagnet body fixed directly above and pulling the rail strongly by its magnetic force.

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