Side braking ratchet wheel tension compensation device of electrization railway

Abstract

The invention relates to a side braking ratchet wheel tension compensation device of an electrization railway, comprising a braking support frame. The braking support frame is connected with a ratchet wheel shaft through two rotary arms; the ratchet wheel shaft and a ratchet wheel body are coaxially arranged through a sliding bearing made of self-lubricating composite material; the ratchet wheel body can rotate around the ratchet wheel shaft and consists of a hub, a plurality of radial plates and a wheel flange; a tension wheel groove A and a tension wheel groove B are respectively arranged at the two sides of the radial plates of the ratchet wheel body and the outer circumference surface of the hub; rope troughs are arranged in the two grooves; the outer circumference surface of the wheel flange is provided with a ratchet wheel trough the bottom of which is cast with a rope trough and a steel wire rope hole; braking gear rings are symmetrically cast on the two sides of the wheel flange; and the lower end of the braking support frame is fixedly connected with a buffer brake device. The invention is suitable for a working state that a carrier cable and a contact line slowly change under the influence of environment temperature, overcomes the defects of frequent off-line, arc discharge, burning of a contact line and the like of a pantograph of a locomotive, is free from oil injection and maintenance and has long service life.

Description

technical field [0001] The invention belongs to the technical field of catenary systems for electrified railway power supply equipment, and relates to a compensating device for compensating the anchor tension of a catenary cable and a catenary line, in particular to a side brake ratchet tension compensating device. Background technique [0002] The catenary cables and contact wires of the catenary system in electrified railway power supply equipment are affected by environmental and temperature changes, such as thermal elongation and cold contraction, which cause continuous changes in line tension. Although this change is very slow, it is enough to make the catenary line not work properly. In order to ensure the normal operation of the catenary line, the tension compensation device is used to eliminate the change of the catenary cable and the contact line with the temperature. At present, the radial braking ratchet tension compensation device used in the catenary has the fol...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a side brake ratchet tension compensation device for electrified railway catenary, which solves the existing radial brake ratchet compensation device, which is easy to hit and break teeth, and compensates for mutual extrusion and wear of steel wire ropes when they are wound. problem and does not require regular oil lubrication

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