A prestressed steel strand coil fixed and unwrapping device and its manufacturing method

Abstract

The invention discloses a prestress steel strand coil fixing paying-off device. The prestress steel strand coil fixing paying-off device comprises a main frame, a longitudinal connecting rod set, a third vertical supporting rod set and an auxiliary support. The main frame is composed of an upper transversal connecting rod set, a lower transversal connecting rod set, a first vertical supporting rod set, a second vertical supporting rod set, a first connecting rod set and a second connecting rod set. The auxiliary support is formed by connecting the longitudinal connecting rod set, the third vertical supporting rod set and a first transversal connecting rod which is perpendicular to the longitudinal connecting rod set and the third vertical supporting rod set, and the longitudinal connecting rod set, the third vertical supporting rod set and the first transversal connecting rod are located in the same plane. The first transversal connecting rod is provided with a strand clamping and limiting device, and a second transversal connecting rod is provided with a length measuring instrument. Vertical supporting rods of the whole support system are connected with universal wheels. The invention further discloses a manufacturing method of the prestress steel strand coil fixing paying-off device. The prestress steel strand coil fixing paying-off device can guarantee safe and reliable paying-off and has the advantages that the prestress steel strand coil fixing paying-off device can measure the length of the paid-off strand, can be moved and repeatedly used, and has the strand clamping function.

Description

technical field [0001] The invention relates to the field of bridge construction machinery, and more specifically relates to a prestressed steel strand coil fixing and releasing device and a preparation method thereof. Background technique [0002] Prestressed concrete was first developed in Western Europe after World War II in order to quickly restore war wounds in the absence of steel. With the advancement of materials, equipment, and construction techniques, prestressed concrete structures have occupied a very important position in civil structures. Steel strands are often used in prestressed concrete structures. In order to facilitate the transportation of prestressed steel strands, the prestressed steel strands are often wound into coils, but during use, the coiled prestressed steel strands must be straightened and cut to a suitable length before they can be used. When manually cutting materials at the construction site, in order to prevent the steel strands from boun...

AI Technical Summary

Problems solved by technology

When manually cutting materials at the construction site, in order to prevent the steel strands from bouncing and hurting people when the coil is opened, a steel strand fixing device is needed. At present, most of the fixing devices used on the construction site are very simple, which are temporary devices lapped by steel pipes. It is not possible to directly measure the pay-off length, and every time the steel strand is opened, a temporary fixing device needs to be lapped and removed after use, which is time-consuming and laborious, and reduces work efficiency. The general meeting causes the coil to be scattered during the pay-off process, resulting in interlaced winding of the wires, which is not conducive to pay-off

Therefore, there is an urgent need to solve the defects in the prior art that the steel strand pay-off device needs to be temporarily assembled and disassembled every time, cannot measure the length of the laid steel strand, cannot clamp the wire end firmly when not in use, and has irregular sizes.

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