SPEED DETECTOR AND ITS TESTING APPARATUS BY USING UNTOUCHABLE POWER TRANSFERING METHOD

摘要

The present invention detects the number of revolutions of the wheels of a train in an automatic train stopper (ATS), automatic train control (ATC), or automatic train operation (ATO). When detecting the abnormality of the speed detector by detecting the contact by non-contact type, the speed detector using the non-contact power transmission method and its inspection device which eliminates the trouble of operating the rotating power source or separating the speed detector from the rotating power source. Disclosed, the speed detector according to the present invention is coupled to the rotational power source by the coupler, the power transmission means that is rotated only when the rotational power source is rotated, and the magnetoresistive member 101 is mounted so as to face the power transmission means coaxially. It is mounted and rotated in a non-contact manner, but rotates integrally with the power transmission means when the power transmission means rotates. When the magnetoresistive member 101 is rotated and the speed detector is checked for abnormality, the magnetoresistive member driving means for rotating the magnetoresistive member 101 is rotated in a non-contact manner with the power transmission means, and the sensing sensor assembly and the like. A casing providing a space in which the means are rotated therein and a cover means for blocking foreign matters mixed therein, the power transmission means comprising: a first rotation shaft 131 connected to a rotational power source by a coupling; And a magnetic body 132 mounted at an end of the first rotation shaft, and the magnetoresistive member driving means includes a second rotation shaft 141 on which the magnetoresistive member 101 is mounted and coaxially opposed to the first rotation shaft 131. 142 and a first permanent magnet mounted to one end of the second rotating shaft 141 and 142 and generating magnetic force with respect to the magnetic body 132 such that the second rotating shaft is rotated in contact with the first rotating shaft. 142) and the second The first permanent magnet 142 mounted on the other end of the shaft, coupled to the inspection device 300 magnetically or mechanically and mounted on the second rotating shaft when the abnormality of the speed detector is inspected in a non-contact manner with respect to the magnetic body 132. By rotating the magnetoresistive member 101 even when the train is stopped, the second permanent magnet 143 or the box jig portion 243 can be inspected for abnormality of the speed detector.;In addition, the speed detector inspection apparatus according to the present invention includes a motor 302 rotatable at a predetermined speed, a base 304 for supporting the motor, and a second permanent magnet 143 of the speed detectors 100 and 200. Alternatively, the inspection jig member for driving the second permanent magnet 143 or the box jig 243 by the rotational force of the motor when coupled to the box jig portion 243 magnetically or mechanically checks whether there is an abnormality of the speed detector ( 310), the data detector 320 receives a signal relating to the abnormality of the speed detector when the magnetoresistive member rotates, and the abnormality of the speed detector input from the data detector 320. When the data signal is processed and the result is provided to the display device 340, the central processing unit 330 for generating a signal for controlling the motor and the inspection rotating member 310 during the inspection of the speed detector include a second permanent magnet ( 143) or coaxial with the box earth 243 It consists of the upper and lower adjustment members 306, 308 to control the motor in a horizontal and vertical phase to to.