Automatic tension compensator for overhead contact systems for electrified railways using elasticity

Abstract

The invention relates to an automatic tension compensator for overhead contact systems for electrified railways using elasticity. The automatic tension compensator comprises a barrel, springs, a guide barrel, a load device and a connecting device. A baseplate 1 with center holes is arranged at the bottom of the barrel. The guide barrel can move axially relative to the barrel by passing through the center hole 1 of the baseplate 1. A flange 1 is arranged at one end of the guide barrel. The springs are arranged outside the guide barrel. The two ends of the springs are respectively positioned between the lower end face of the flange 1 and the baseplate 1 of the barrel. The guide barrel is provided with a baseplate 2 with center holes, an inner guide barrel and inner springs. The inner guide barrel can move axially relative to guide barrel by passing through the center hole 2 of the baseplate 2. A flange 2 is arranged at one end of the inner guide barrel. The inner springs are arranged outside the inner guide barrel. The two ends of the inner springs are respectively positioned between the flange 2 and the baseplate 2. A connection plate is arranged at the other end of the inner guide barrel and is connected with the load device. The tension compensator is compact and small, thus reducing the installation and maintenance workload.

Description

technical field [0001] The invention relates to an automatic tension elastic compensator for an electrified railway catenary, in particular to a large compensation amount multi-stage spring electrified railway catenary (carrying cable) tension elastic automatic compensator. Background technique [0002] In 1961, my country built the first electrified railway, the Baoji-Fengzhou section of the Baocheng Railway. After the advent of electrified railways, it has developed rapidly. France, Japan, Germany and other countries have become the railway transportation industry dominated by electrified railways, and most of the freight volume is completed by electric railways. Its electricity is provided by the railway power supply system. The system consists of traction substation and catenary. The high-voltage electricity from the high-voltage transmission line is stepped down and rectified by the traction substation, and then sent to the overhead railway catenary. The electric loco...

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Problems solved by technology

[0005] 1. The gravity of the cement block is small, and the length of the wire that can be balanced is limited. On average, a device needs to be loaded for every three columns;

[0006] 2. A conversion mechanism is required, and there are certain requirements for installation space and location, so it is difficult to solve the need for catenary tension in railway tunnels;

[0007] 3. The pulley mechanism needs manual refueling, and the cement blocks need to be adjusted according to seasonal changes;

[0008] 4. The cement blocks may shake to a certain extent under the influence of strong winds, and the force on the tensioning device is unbalanced

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