A jack for automatically pulling steel strands

Abstract

The invention relates to a jack for pulling steel strands, which includes a base, an oil cylinder, a piston, a fixed clamping part, a movable clamping part, a connecting rod, a guide part, electric wires, through holes, a fixed electric control device, a movable electric control device; the oil cylinder is fixed on the base, and the piston is set in the oil cylinder; the movable clamping part is set on the upper part of the piston, and can move up and down following the piston; the connecting rod is set between the oil cylinder and the fixed clamping part between; the fixed clamping part and the movable clamping part are respectively connected to the console by the fixed electric control device and the movable electric control device; the fixed electric control device and the movable electric control device can be fixedly clamped by the console control part and the movable clamping part to clamp or loosen the steel strand; the through hole passes through the base, the oil cylinder, the piston, the fixed clamping part and the movable clamping part to form a channel for accommodating the steel strand; The jack for pulling steel strands can continuously and automatically repeat the above two steps, and go round and round, so that the automatic drawing of steel strands can be realized.

Description

technical field [0001] The invention relates to a jack, in particular to a jack with a high degree of automation, which can reduce the manual workload and increase the drawing speed, and belongs to the technical field of infrastructure engineering equipment. Background technique [0002] With the advancement of urbanization, the construction of underground facilities such as underground parking lots, underground pedestrian passages, underground commercial streets, and underground railways requires foundation pit support. Although the use of internal support can well solve various problems generated during the construction of underground structures, its high cost, long construction period, and inconvenient construction of underground structures cannot meet the needs of urban development. [0003] In the prior art, in the Chinese patent with the patent number ZL201020022968.1, the inventor provides a hinge-type large-tonnage anchoring device; including hinge-type large-tonnage...

AI Technical Summary

Problems solved by technology

The current method of pulling out the steel strand: use a conventional jack to pull out the steel strand. This type of jack only has a few components such as an oil cylinder, a piston, and a movable clamping part, and the movable clamping part loosens or clamps the steel strand. It is done manually, and each time the steel strand is pulled out a stroke, the movable clamping part needs to be loosened and clamped manually, so that the labor intensity of the operator is greater, and the pulling of the steel strand is slower

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