A lower contact automatic current collector

Abstract

The invention belongs to the field of rail transit vehicle current collection devices and specifically relates to a lower contact automatic current collector. In order to solve problems of complicatedstructure, high fault rate, large size, incomplete functions, inconvenient maintenance and the like of the lower contact automatic current collector in the prior art, a technical scheme of the lowercontact automatic current collector is that the lower contact automatic current collector comprises a frame (1), an electric push rod (2), a carbon slide plate (6) and a rotating arm (4); one end of the rotating arm (4) is hinged to the frame (1); a tension spring (3) is also connected to the rotating arm (4); the other end of the tension spring (3) is connected with the frame (1); the electric push rod (2) is mounted on the frame (1); a push block (9) for pushing the rotating arm (4) to rotate around a rotating shaft (8) is connected to the electric push rod (2); and the carbon slide plate (6) is fixedly connected with the rotating arm (4) through an insulated swinging arm (5). The lower contact automatic current collector provided by the invention is suitable for the rail transit vehicleto dynamically collect current from a rigid power supply rail.

Description

technical field [0001] The invention belongs to the field of current collectors for rail transit vehicles, and in particular relates to a lower contact automatic current collector. Background technique [0002] The lower contact current collector is a kind of rigid power supply rail current collector. It is installed on the vehicle bogie to dynamically take current from the rigid power supply rail (third rail) for the train to meet the power demand of the train. equipment. At present, there are manual and automatic execution methods for the lower contact current collector, among which there are pneumatic and electric execution methods for automatic operation, and most of them are pneumatic execution methods. [0003] However, the structure of the lower contact current collector in the prior art is complex, there are many rotating mechanisms, and the force is unreasonable, resulting in a large device volume, high failure rate, and inconvenient repair and maintenance. For ex...

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Problems solved by technology

[0004] In view of the problems of complex structure, poor stability, high failure rate, large volume, insufficient functions and high maintenance cost of the lower contact current receiver in the prior art, the purpose of the present invention is to provide a simple structure, low failure rate, Small size, easy maintenance, and integrated functions such as automatic lifting bow, bow lowering lock, bow lowering position self-locking double protection, manual lifting bow, carbon skateboard contact force adjustable, carbon skateboard position height adjustable and other functions in one integrated lower contact automatic receiving streamer

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