Steel strand braiding initial stress adjusting damping system

Abstract

The invention discloses a steel strand braiding initial stress adjusting damping system which comprises an outer frame, a preliminary arrangement and positioning device, an initial stress adjusting device and a numerical control center, and the outer frame is used for providing a working face and a working foundation for the whole system; the preliminary arrangement and positioning device is arranged at the starting end of the traction movement direction of steel strands, the multiple steel strands enter the initial stress adjusting area from the preliminary arrangement and positioning device, and preliminary arrangement and positioning are conducted on the steel strands; the initial stress adjusting device is arranged in the initial stress adjusting area and comprises a rubber valve assembly, a fixed beam and a hydraulic jack, the two ends of the rubber valve assembly are fixedly connected with one side of the fixed beam, and the other side of the fixed beam is connected with the hydraulic jack so that pressure can be output through the hydraulic jack; a stress sensor is arranged at the end part of the hydraulic jack; and the numerical control center is respectively in signal connection with the hydraulic jack and the stress sensor.

Description

technical field [0001] The invention relates to the technical field of steel strand braiding operations, in particular to a steel strand braiding initial stress adjustment damping system. Background technique [0002] Steel strands have a certain amount of resilience in the factory, which will cause uneven initial stress of each bundle of steel strands during the prestressed braiding process. It is clearly stipulated in the relevant construction specifications that the initial stress should be relieved to reduce stress. Due to the uneven initial stress of the steel strand itself, it is avoided to weaken the actual work efficiency of the prestressed tension of the steel strand, thereby causing quality problems. [0003] The relevant construction code stipulates that the bundle of steel strands should be straight to prevent the strands from being twisted. At present, most of the domestic use of single steel strand cutting, and then unify the bundling scheme of manual binding,...

AI Technical Summary

Problems solved by technology

At present, most of the domestic use of single steel strand cutting, and then unify the bundling scheme of manual binding, which cannot realize mechanized construction, and mainly relies on manual and tensioning for initial stress relief to reduce the springback deformation of steel strands and steel strands. out of shape

However, it is difficult to eliminate the slight springback deformation of the steel strands by manually removing the initial stress of a single steel strand in the steel strand bundle, and there is a certain degree of uneven initial stress, and the quality of the bundle is greatly affected by man-made

The step of eliminating the initial stress of tension cannot effectively eliminate the uneven deformation of a single steel strand bundle, and the construction process is complicated, the workload of steel strand bundles is large, and the work efficiency is low, which eventually leads to unstable bundle quality

Images