Subway wheel reverse rotation detection device and method

Abstract

The invention discloses a subway wheel reverse rotation detection device and method. The detection device comprises a current transformer, a current transmitter, a current control instrument, a controller and an alarm which are electrically connected in sequence, wherein the current transformer is connected with an output cable of a motor on a wheel and used for obtaining an alternating current signal of the output cable of the motor on the wheel, the current transmitter is used for converting the alternating current signal acquired by the current transformer into a direct current signal, thecurrent control instrument is used for judging whether the direct current signal outputted by the current transmitter exceeds an alarm limit range or not, if yes, an alarm signal is sent to the controller, and otherwise, alarm processing is not carried out, and the controller is used for controlling the alarm to give an alarm prompt after receiving the alarm signal. The invention further disclosesa detection method based on the subway wheel reverse rotation detection device. The detection device is advantaged in that wheel reverse rotation can be conveniently and accurately detected, and detection efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a device and method for detecting subway wheel reversal. Background technique [0002] When the subway wheels reverse, if it is not detected in time, it will cause great damage to electrical components such as drive motors, gearboxes, cables, etc., and even cause short circuit damage to the motor due to excessive current. In the prior art, the following two methods are usually used to detect whether the wheels are reversed. One way is: the driver judges by experience. The problem is that the detection accuracy of this method is low; another method is: set up the whole train with a frame, and then start it to detect whether there is any wheel reversal. This method is inconvenient to operate and requires more time and manpower. less efficient. Therefore, the existing detection methods cannot conveniently and accurately detect wheel rotation, and the detection efficiency is l...

AI Technical Summary

Problems solved by technology

[0002] When the subway wheels are reversed, if it is not detected in time, it will cause great damage to the electrical components such as the drive motor, gearbox, cables, etc., and even cause short-circuit damage to the motor due to excessive current

In the prior art, the following two methods are usually used to detect whether the wheels are reversed. One way is: the driver judges by experience. The problem is that the detection accuracy of this method is low; another method is: set up the whole train with a frame, and then start it to detect whether there is any wheel reversal. This method is inconvenient to operate and requires more time and manpower. less efficient

Therefore, the existing detection methods cannot perform convenient and accurate detection of wheel reversal, and the detection efficiency is low, which cannot meet the detection requirements

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