Auxiliary mounting device for prestressed steel strand penetrating end

Abstract

The invention discloses an auxiliary mounting device for a prestressed steel strand penetrating end. The auxiliary mounting device for the prestressed steel strand penetrating end comprises a longitudinal sliding system used for clamping, fixing and moving a steel strand penetrating end and a transverse adjusting system used for supporting and adjusting the longitudinal sliding system. The longitudinal sliding system comprises a sliding frame longitudinally arranged along a mounting groove of a steel strand, a hydraulic driving mechanism and an annular hydraulic clamp arranged at the end partof the sliding frame. According to the invention, the main shaft steel pipe sliding frame with a clamping groove is used for overally adjusting and straightening the steel strand at the position of anotch, the bending and twisting states of the steel strand before being installed in the notch are reduced or avoided, the end penetrating friction is reduced by matching a grid-shaped limiting frame,the mounting device comprises a longitudinal moving structure and a transverse moving structure and can adapt to any adjustment in the steel strand mounting and fixing process. The same hydraulic driving mechanism is adopted to be connected in parallel and respectively drive longitudinal and transverse and an annular hydraulic tong of the steel strand to be fixed, the driving structure is more compact, and all systems are more rapidly and stably moved and installed.

Description

technical field [0001] The invention belongs to the technical field of civil engineering construction, in particular to the technical field of beam threading installation of steel strands in prestressed engineering, and in particular to an auxiliary installation device for threading ends of prestressed steel strands. Background technique [0002] In civil construction, it is often necessary to anchor and fix steel strands. For example, in municipal and railway prestressed projects, when steel strands are installed through bundles, generally there are more single strands of steel strands, usually 6 to 22 bundles. During the installation, each time the steel strand is threaded, the steel strand is often in a state of bending and twisting from the steel strand reel to the threading end due to terrain restrictions and other reasons, which makes it difficult to straighten the steel strand when threading the bundle, and the frictional force Large, low beam penetration efficiency. ...

AI Technical Summary

Problems solved by technology

[0002] In civil construction, it is often necessary to anchor and fix steel strands. For example, in municipal and railway prestressed projects, when steel strands are installed through bundles, generally there are more single strands of steel strands, usually 6 to 22 bundles. During the installation, each time the steel strand is threaded, the steel strand is often in a state of bending and twisting from the steel strand reel to the threading end due to terrain restrictions and other reasons, which makes it difficult to straighten the steel strand when threading the bundle, and the frictional force Large, low beam penetration efficiency

Images