Contact net constant tension paying-off cart and paying-off construction method
A pay-off car and constant tension technology, applied in the direction of overhead lines, etc., can solve the problem of too long reserved section of contact line, etc., achieve the effect of simple and fast installation and dismantling process, simple structure, and ensure the quality of pay-off
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[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, rather than All the embodiments; based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work all belong to the protection scope of the present invention.
[0028] Such as figure 1 As shown, the embodiment of the present invention provides a catenary constant tension pay-off car, comprising a vehicle frame 1, a tension machine 2 and a pay-off reel 3 are arranged on the vehicle frame 1, and wheels 4 are arranged at the bottom of the vehicle frame; When the wire is threaded, the contact wire 5 on the pay-off reel 3 needs to be wound on the two friction wheels of the tensi...
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