Automatic abrasion detection device for pantograph pan of high-speed locomotive

Abstract

The invention relates to an automatic abrasion detection device for a pantograph pan of a high-speed locomotive. The automatic abrasion detection device comprises two industrial cameras (201 and 202) and a linear laser (401), wherein the two industrial cameras (201 and 202) are mounted on a first bracket (101) and a third bracket (103) and the linear laser (401) is mounted on a second bracket (102); the linear laser (401) is used for projecting the linear lasers onto the pantograph pan (501); and the two industrial cameras (201 and 202) are used for photographing the detected pantograph pan (501). The two cameras respectively face the detected pantograph pan (501) and are in the depression angles of 45 DEG; the linear laser mounted on the second bracket (102) projects the linear lasers onto the detected pantograph pan (501) so as to form a red and green alternate linear laser array; and an infrared trigger (301) is mounted on the second bracket, so that the infrared trigger can be triggered when the detected pantograph pan reaches a detection position. According to the automatic abrasion detection device, the measurement result is precise.

Description

technical field [0001] The invention is a device for real-time detection of the wear state of a pantograph slide plate of a locomotive, in particular a real-time detection device for the wear of a pantograph slide plate of a locomotive based on stereo vision. Background technique [0002] In the high-speed electrified railway system, the locomotive takes power from the contact wire above the locomotive through the pantograph, which is used as the power supply of the locomotive and other electrical equipment. During operation, the locomotive must maintain a stable power supply. Therefore, the pantograph slide, which is directly in contact with the contact line, will become a key device for obtaining power. Reliability of locomotive operation. Due to the long-term contact between the pantograph slide and the contact wire, it wears out all the time during the running of the locomotive, which brings many unreliable factors to the performance of the locomotive’s power collectio...

AI Technical Summary

Problems solved by technology

Although this method can detect the wear state of multiple points of the pantograph slide plate, there are also great shortcomings: First, the surface of the pantograph slide plate and the ultrasonic probe cannot be guaranteed to be completely vertical during the running of the locomotive, resulting in The detection signal received by the sensor is weak, or the detection signal cannot be received at all; the second is that there are many electrical interferences in the electrified locomotive system, and the working distance of the ultrasonic sensor is limited, so it is necessary to ensure that the sensor and the tested skateboard are kept close The test distance and severe electrical interference bring many constraints to the collection of detection signals, and the installation and maintenance process is complicated; the third is that the detection data is a few points of the pantograph slide plate, and the wear status of all points on the pantograph slide plate surface cannot be obtained

However, the main disadvantages of this method are: First, the requirements for materials are relatively high. The sensor must be embedded in the pantograph slide, and the material process requirements are high. The change of the material structure of the pantograph slide reduces the use of the pantograph slide. Second, the sensor cannot cover the entire pantograph slide, so the data obtained is several points, and the wear status of each point cannot be obtained; the third is that the entire system has many devices and is relatively complicated, and the system installation and maintenance inconvenient

However, its disadvantages are also obvious: first, the wear degree of the edge is equal to all the wear degrees in the direction of travel of the skateboard, and the wear degree of each point of the pantograph skateboard cannot be obtained by using a line instead of a surface. When the locomotive is mechanically damaged or missing in the direction of travel, the corresponding wear state cannot be detected; second, the detection system uses a large number of industrial cameras, and the installation process is relatively complicated

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