High-speed pantograph head with two degrees of freedom

Abstract

The invention discloses a high-speed pantograph head with two degrees of freedom. The high-speed pantograph head comprises a supporting seat, flexible plate support frames, two contact strip supporting columns, connecting springs and carbon contact strips, wherein the flexible plate support frames are fixedly connected with the supporting seat through rivets, and the two contact strip supporting columns are connected with the flexible plate support frames through bolts; the carbon contact strips are fixedly arranged at the tops of the contact strip supporting columns through screws; and two ends of the connecting springs are connected with the front and rear contact strip supporting columns through hinges. The high-speed pantograph head is arranged at the top of a pantograph, the carbon contact strips can be kept in close contact with guide wires in contact nets all the time under the supporting actions of the flexible plate support frames and the contact strip supporting columns, and effective supporting and vibration damping functions are provided in the two-degree-of-freedom direction, so that the structural stability, following performance and contact net adaptability of the pantograph are improved. The high-speed pantograph head with two degrees of freedom is simple in structure, light in weight, easy to manufacture, high in shock resistance, not only beneficial to high-speed current collection of the pantograph, but also capable of increasing the collected current of the pantograph of a train on a conventional railway or an urban light rail.

Description

technical field [0001] The invention relates to a pantograph head for running an electric vehicle or a locomotive, in particular to a two-degree-of-freedom high-speed pantograph head. Background technique [0002] The pantograph, also known as the pantograph, is the electrical equipment for the electric locomotive to receive electric energy from the catenary, and is installed on the roof. As one of the key components of the electric locomotive, the pantograph plays a key role in the safe and stable operation of the vehicle at high speed. On vehicles such as electric locomotives, EMUs, subway trains or other electric operating vehicles in electrified railways and urban rail transit, it is necessary to use pantographs to take current from the catenary. The electrified railway adopts electric traction. When the train is in motion, it uses the pantograph to obtain electric energy from the catenary. In order to ensure the smooth and safe operation of the train, it is necessary t...

AI Technical Summary

Problems solved by technology

[0005] The traditional pantograph is limited by the inherent structure, the bow head mainly moves in the vertical direction, only the preload and the buffer device for vibration reduction are set in the vertical direction, and there is no vibration reduction device in other directions

In addition, the existing pantograph is not equipped with a bow head separation device. When pantograph-catenary scraping occurs, the scraper on the bow head cannot be disengaged, which may easily lead to pantograph-catenary scraping accidents

The existing pantograph not only has poor structural stability, but also seldom considers the protection measures when the lateral force and the pantograph-catenary scrape, and there are certain safety hazards

[0006] Aiming at the problems of insufficient motion freedom and vibration reduction performance of existing pantographs, existing patent documents have also proposed some solutions. For example, Chinese patent application number 201010610605.4 discloses a high-speed pantograph head, including Sliding plate, small bow angle, large bow angle and frame spring, with the cooperation of the pantograph balance bar, the frame spring can always keep the pantograph carbon slide parallel to the track plane, so that the carbon slide is always in close contact with the contact wire , the bow head of the pantograph adopts a single-slide cantilever structure, which has single-degree-of-freedom vibration reduction performance, and can replace the bow head of the existing series pantograph, but it is not suitable for parallel structure pantographs

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