Bolt looseness detecting device of pantograph type current collector of high-speed train

Abstract

The invention relates to a bolt looseness detecting device of a pantograph type current collector under travel of a high-speed train. The device provided by the invention comprises a sensor module, a data gathering and storing module, a wireless network transmission module, a data processing module, and the like. The sensor module is a capacitance angular displacement sensor and is separately designed for dynamic monitoring of a lower bolt of the pantograph type current collector; the data gathering and storing module utilizes an A / D (analog-to-digital) converter chip to gather multiple access signals, stores data in real time and then sends the data to the wireless network transmission module at the rear end; the wireless network transmission module is constructed by the Zigbee network and is used for sending angular displacement detection data from the outer part of the train to the inner part of the train; and the data processing module is used for analyzing and processing bolt looseness angular displacement index test data, compares and analyzes received data and built-in standard data and displays the bolt looseness state.

Description

technical field [0001] The invention relates to the field of mechanical detection, in particular to a method and device for detecting loose bolts of pantographs of high-speed trains. Background technique [0002] The pantograph is used as the electrical equipment for the electric traction locomotive to obtain electric energy from the catenary, and is installed on the roof of the locomotive or motor car. Its performance directly affects the safety and reliability of rolling stock operation. Therefore, during the operation of rolling stock, it is necessary to ensure that the pantograph can maintain reliable and stable performance. The pantograph bolt loosening test is a test to monitor whether the bolt pretightening force of the pantograph in operation meets the safety requirements. It analyzes the movement of the pantograph bolts on the actual line by testing and recording The data of bolt pre-tightening force on this line is finally collected and analyzed to obtain the cha...

AI Technical Summary

Problems solved by technology

However, regular maintenance cannot meet the requirements of safe operation of high-speed trains: regular maintenance requires vehicles to be put into storage for testing, without professional testing equipment, and at the same time, it is impossible to perform performance testing of bolt looseness on the actual line

Images