Device for automatically detecting abrasion of pantograph pan of locomotive online

Abstract

The invention provides a device for automatically detecting the abrasion of the pantograph pan of a locomotive online. A front trigger switch and a rear trigger switch connected with a data processing and controlling device are fixed to the lateral surface of a detection shed at the height thereof being the same as the pantograph pan; a left background plate and a right background plate are respectively mounted on the left and right lateral surfaces of the detection shed; four image sensors are mounted on the detection shed; wherein a rear left image sensor and a rear right image sensor with the forward and downward viewing angle are respectively aimed at the front parts of the right background plate and the left background plate, and the rear left image sensor and the rear right image sensor are respectively aimed at the right half part and the left half part of a front plate of the pantograph pan of the locomotive when the rear trigger switch is triggered; and a front left image sensor and a front right image sensor with the backward and downward viewing angle are respectively aimed at the rear parts of the right background plate and the left background plate, and the front left image sensor and the front right image sensor are respectively aimed at the right half part and the left half part of the pantograph pan of the locomotive when the front trigger switch is triggered. Accordingly, the device capable of carrying out the automatic non-contact dynamic detection on the locomotive online has the advantages of high detection accuracy, safe and convenient application, high stability and reliability and long service life.

Description

technical field [0001] The invention relates to a pantograph state detection device for a locomotive, in particular to an on-line automatic detection device for the abrasion of a pantograph slide plate of a locomotive. Background technique [0002] The locomotive draws power from the contact line above the locomotive through the pantograph, which is used as the traction power supply of the locomotive and the power supply of other electrical equipment. In high-speed electrified railway systems, locomotives must maintain a steady state of flow. Therefore, as the key current-taking equipment directly in contact with the contact line, the state of the pantograph slide is extremely critical, and it is related to whether the locomotive can take power from the contact line stably and reliably. Due to the long-term contact between the pantograph slide plate and the contact wire, wear and tear will inevitably occur, resulting in poor electrical performance of the locomotive; if an a...

AI Technical Summary

Problems solved by technology

This method can detect the sliding plate wear at multiple points on the pantograph sliding plate, but it also has the following disadvantages: 1. Since the bow head cannot be kept completely horizontal during the movement process, that is, it cannot be kept perpendicular to the surface of the ultrasonic sensor probe, resulting in part of the ultrasonic waves being unable to return The receiving unit makes it impossible to detect normally; 2. It is also only sampling and testing a few points on the skateboard, and the overall surface state of the skateboard cannot be obtained.

3. Due to the limitation of the working distance of the ultrasonic sensor, the installation position of the sensor is very close to the pantograph slide (generally less than 400mm), so the sensor needs to be installed between the catenary and the catenary cable. The sensor works in a high-voltage area, and the electrical interference is serious. , and the installation and maintenance are very complicated

This method can only realize the pantograph through the video, and confirm and analyze it manually

Since the camera is installed on the central axis of the rail, the roof of the pantograph is taken as the background when the pantograph slide is photographed from above, and there are many and complicated devices on the roof, the background is extremely complicated, and the roof conditions of different models are different; Bow photos are difficult to carry out subsequent automatic analysis and judgment. Even if some automatic analysis and processing can be done, its accuracy and reliability are greatly limited, and it is easy to cause misjudgment

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