Detection method and system device for characteristics of locomotive pantograph

Abstract

The invention relates to a detection method and system device for characteristics of a locomotive pantograph. The detection method comprises the following steps: suspending a displacement and tension test device on the pantograph at the inflating state of a pantograph airbag and rising state of the pantograph, driving the pantograph to rise and fall at a constant speed by virtue of the displacement and tension test device, reading height displacement and tension value of the pantograph via the displacement and tension test device in the moving process, transmitting the measured height displacement and tension value to a wireless human-machine interaction microcomputer, calculating, by the wireless human-machine interaction microcomputer, the pressure difference by virtue of the received height displacement and pressure value, forming a height displacement and pressure curve, comparing with a normal value, judging the status of the characteristics of the pantograph, and detecting the characteristics of the pantograph. By adopting a wireless remote control way, the weaknesses that the existing product is poor in test precision, large in size and inconvenient to operate, has no function for testing the time for the pantograph to rise from the lowest position to the highest position and is lack of a wireless data transmission function can be overcome.

Description

technical field [0001] The present invention relates to an improvement of an inspection method for railway locomotive parts, and in particular to an inspection method and a system device for the characteristics of a locomotive pantograph. Whether to perform detection, including pantograph lifting speed, the relationship between pantograph force and height displacement, etc. It can warn of various adverse situations, and after automatic recording, it can be transmitted to the terminal database for further analysis. Background technique: [0002] The pantograph is an important electrical equipment for the electric traction locomotive to obtain electric energy from the catenary, and it is installed on the roof of the locomotive or motor car. Pantographs can be divided into single-arm bows and double-arm bows, both of which are composed of slide plates, upper frames, lower arm rods (lower frames for double-arm bows), underframes, bow springs, transmission cylinders, supporting...

AI Technical Summary

Problems solved by technology

The disadvantage of this tester is that the manual crank cannot guarantee the pantograph to move at a constant speed when it is raised and lowered, which directly affects the accuracy of the test results. The relationship between the continuous change of the bow height, the versatility of the instrument is not strong, and it cannot meet the needs of various types of pantograph performance testing

[0006] 2. Chinese Utility Model Patent Specification CN2405835Y discloses a pantograph tester, which has the following disadvantages: it uses a common motor, a deceleration The structural sequence of machine and sheave is arranged in sequence, the volume is generally large and the weight is heavy, which makes it inconvenient for workers to carry; the external load cell makes the sensor easy to receive interference from the external environment, resulting in a decrease in the accuracy of test data and a sense of product quality. The integrity is not good; only the magnetic iron-absorbing fixing device is configured, because the roof of the new locomotive is made of aluminum alloy, which leads to the failure of the magnetic-absorbing iron-absorbing device, which cannot be applied to all locomotive models; the maximum height of the pantograph free lifting bow has not been tested The function of the required time; there is no DC110V output of the pantograph lifting control valve, and when testing the characteristics of the pantograph, one person needs to control the inflation and exhaust of the pantograph under the locomotive, which is inconvenient to operate

[0007] these patents above, so although these above patents all relate to the detection operation of the locomotive pantograph, some of them also involve some improvements to the detection, but none of them Proposed how to improve the existing detection equipment complex, bulky, inconvenient to operate, still need to be further improved

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