Supporting mechanism of negative positioning elastic damper for high-speed railway touching nets

Abstract

The invention relates to a supporting mechanism of a negative positioning elastic damper for high-speed railway touching nets. The supporting mechanism is used for supporting and fixing a cantilever structure of a high-speed railway touching net system, the cantilever structure comprises a flat cantilever, an inclined cantilever, a positioning pipe, a positioner and a positioning pipe support; the supporting mechanism comprises a damping generating unit and a positioning pin unit, wherein one end of the damping generating unit is fixedly connected with the positioning pipe, the other end of the damping generating unit is connected with the positioner through the positioning pin unit, and the damping generating unit is arrayed in the inclined direction and connected with the positioner and the positioning pipe respectively so as to jointly form a supporting structure. Compared with the prior art, the supporting mechanism disclosed by the invention is compact and reasonable in integral structure, easy to manufacture and convenient to mount and can be widely used for resisting wind for high-speed electrified railway touching nets, so that the wind resistant property of the touching nets can be effectively improved, and the wind damage loss of an electrified railway is reduced.

Description

technical field [0001] The invention belongs to the technical field of positioning devices for lines, and relates to a supporting mechanism for a reverse positioning elastic damper of a high-speed railway catenary. Background technique [0002] The catenary system is a special form of transmission line erected along the railway line to supply power to electric locomotives. It is composed of contact suspension, supporting device, positioning device, pillar and foundation. Contact suspensions include contact wires, suspension strings, catenary cables, and connecting parts. High-speed railways are developing rapidly in my country. Up to now, the total mileage ranks first in the world. Therefore, ensuring the normal operation of railways has very important economic significance and social value. [0003] The high-speed railway catenary system is a typical wind-sensitive structure, and its wind-induced vibration directly affects the current intake of the locomotive pantograph. ...

AI Technical Summary

Problems solved by technology

On July 10, 2011, 19 trains were delayed due to catenary failure and power failure in Shandong due to strong winds. This was an accident caused by the offset of the positive feeder; , G114, G105 high-speed EMU trains had pantograph-catenary faults at Suzhou East Station, Changzhou, and Taian Stations of the Beijing-Shanghai High-speed Railway, resulting in poor contact of wires and failure of train speed sensors, resulting in reduced operating speed or even outage; 2012 On March 23, the strong wind "blew off" the Beijing-Shanghai high-speed railway again. Some catenary power outages between Beijing South and Tianjin South, and equipment failures at Tianjin South Station caused some trains to be delayed; The catenary failure again occurred in the section, and the strong winds failed the reinforcement wire at the top of the strut

The technical solution disclosed in the above-mentioned patent is mainly to replace the existing ordinary elastic suspension string with a suspension string with a damper. The suspension string is composed of steel strands. On the other hand, it is also the attachment device of the damper, but its manufacturing process is relatively complicated, and the actual engineering proves that the force on the hanging string is small, so the device cannot play a good role in wind protection

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