Contact net constant tension paying-off cart and paying-off construction method

Abstract

Disclosed is a contact net constant tension paying-off cart and a paying-off construction method. The invention belongs to the field of railway electrification contact net constant tension paying-off construction, and provides the constant tension paying-off cart for reducing contact wire reservation. The paying-off cart comprises a cart frame. A tension machine and a paying-off disc are arranged on the cart frame. Contact wires on the paying-off disc are correspondingly wound on two friction wheels of the tension machine and then penetrate out of a tension disc. A winding device is arranged at the tail part of the cart frame. The winding device comprises a rack, a driving mechanism and a winding drum. The driving mechanism and the winding drum are arranged on the cart frame through the rack. A winding steel wire rope is arranged on the winding drum. When the contact wires are paid off to a last lap on the paying-off disc, the winding steel wire rope is used for being connected with the tail ends of the contact wires through a rope pulling net sleeve. The driving mechanism is used for driving the winding drum to rotate, so that the winding steel wire rope is released. The invention further provides the paying-off construction method based on the constant tension paying-off cart. The contact net constant tension paying-off cart is simple in structure and convenient to use, and can be extensively applicable to the constant tension paying-off construction field.

Description

technical field [0001] The invention belongs to the field of constant-tension wire-releasing construction of railway electrified catenary, and in particular relates to a constant-tension wire-releasing vehicle and a wire-releasing method that can reduce reservation of contact wires. Background technique [0002] At present, the technical requirements for catenary erection in my country's railway electrification construction are getting higher and higher, especially high-speed railways require the use of constant tension pay-off vehicles for catenary erection. Constant tension pay-off vehicles can ensure the quality of catenary construction and meet High-speed railway technical requirements. [0003] According to the characteristics of the constant tension pay-off car, before the constant tension pay-off, the contact wire should be wound on the two friction wheels of the tension machine for 4 turns respectively, and then pass through the tension disc for stringing construction...

AI Technical Summary

Problems solved by technology

[0005] The present invention overcomes the deficiencies in the prior art, and the technical problem to be solved is: to provide a catenary constant tension pay-off car to solve the problem that the length of the reserved section of the contact line of the existing constant tension pay-off car is too long

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