Self-locking rope-threading machine

Abstract

The invention discloses a self-locking rope-threading machine, which comprises a base and a box body arranged thereon, wherein a rope-threading driving mechanism is arranged in the box body; a double-speed motor and a stepless gearshift are arranged on the base; the driving mechanism comprises a supporting wheel and a pressing wheel which are engaged with each other; a channel for rope threading is formed between the supporting wheel and the pressing wheel; the output end of the double-speed motor is connected with the input end of the stepless gearshift; the output end of the stepless gearshift is connected with a driving wheel; the driving wheel is engaged with the supporting wheel; a supporting plate is rotationally arranged in the box body; the supporting wheel and the pressing wheel are arranged on the supporting plate; the supporting plate is provided with a first station for pressing down the pressing wheel through the dead weight for transfer; and on the first station, the supporting plate and the horizontal plane form an included angle of 45 to 75 degrees. Compared with other similar products both at home and abroad, the self-locking rope-threading machine has the advantages of compact structure, small size, light weight, high rigidity, performance stability, large transfer force, operational stability and reliability, low noise, few failures, long service life and conveniences in repair and maintenance.

Description

technical field [0001] The invention relates to a prestressing treatment device for steel strands, in particular to a self-locking cable threading machine. Background technique [0002] In the prestressing construction, the method of artificial threading is usually used for threading the prestressed steel strand. The method of artificial threading is not only labor-intensive and inefficient, but also the rigidity, toughness and reliability of the steel strand cannot be achieved. Prestressing requirements. [0003] In order to solve the problems caused by manual cable threading, Chinese Patent No. 200910034412.6 discloses a self-locking cable threading machine, which adopts a swingable cable frame with a cable threading pulley and a swingable threading cable pulley, and is connected by a connecting plate. Multiple ways to swing through the cable rack. In this scheme, the steel strand passes through the cable pulley and the swingable cable pulley, and the prestress is also p...

AI Technical Summary

Problems solved by technology

In this scheme, the steel strand passes through the cable pulley and the swingable cable pulley, and the prestress is also provided by these two wheels. Therefore, the prestress requirements for the steel strand cannot be well matched for different transmission speed requirements.

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