Steel strand unwinding device

Abstract

The invention provides a steel strand unwinding device, and relates to the technical field of steel strand unwinding equipment. The steel strand unwinding device comprises a fixed bracket, a rotatingmechanism, a tensioning mechanism and a locking mechanism. The rotating mechanism is used for driving a disc-shaped steel strand to rotate, so that the end part of the disc-shaped steel strand is unwound; by means of the transmission effect of the tensioning mechanism, the disc-shaped steel strand can be in a tensioned state all the time in the unwinding process, and therefore the situation that the steel strand rolls over on the surface of a roller, cable strands are loosened due to the influence of gravity, resulting in winding of the cable strands is avoided; the posture is adjusted to be switched between a first state and a second state through the locking mechanism; unwinding of the disc-shaped steel strand can be limited or opened; and the technical problems that in the prior art, when the steel strand is unwound, the steel strand rolls on the surface of the roller, the steel strand is prone to being damaged, and the unwinding efficiency and quality of the steel strand are affected are solved.

Description

technical field [0001] The invention relates to the technical field of steel strand laying equipment, in particular to a steel strand laying device. Background technique [0002] In order to improve the performance of concrete structures, in the construction process of large-area and long-span concrete structures, it is necessary to apply a certain compressive stress to the concrete structure before it bears the load, so as to offset or reduce the tensile stress generated by the external load. [0003] In the prior art, the prestressed material is mainly a prestressed steel strand, that is, a twisted steel cable made of high-strength steel wires coiled into strands. The steel strand cable is in a coiled state when it leaves the factory, so it needs to be unwound first during installation. A vertical cable-laying device will be used on the construction site, that is, a horizontal axis is set on two supports, and the drum is placed on the horizontal axis to rotate, and the ca...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a cable-releasing device for steel strands, so as to relieve the steel strands in the prior art from rolling on the surface of the drum, which is likely to cause damage to the steel strands and affect the efficiency and efficiency of the steel strands. quality technical issues

Images