Electric thread sleeve used for steel bar connection and screwing device

Abstract

The invention relates to an electric thread sleeve used for steel bar connection and a screwing device. A tooth part is arranged on the outer wall of the thread sleeve. The screwing device comprises arotating motor, a driving gear arranged on a spindle of the rotating motor and a gear set arranged between the driving gear and the outer wall of the electric thread sleeve and engaged with the driving gear and the tooth part of the electric thread sleeve. Compared with the prior art, the screwing device is matched with the electric thread sleeve in use, then through rotating of the motor and transmitting of the gear set, the electric thread sleeve rotates, and thus the efficiency of on-site steel bar connection can be greatly improved; and the gear engaging property is good, transmission isstable, noise is small, the influence of the manufacturing error on transmission is reduced, and transmission is stable.

Description

technical field [0001] The invention relates to a steel bar connection technology, in particular to an electric threaded sleeve and a screwer for steel bar connection. Background technique [0002] Rebar mechanical connection is a new type of rebar connection process, known as the "third-generation rebar joint" after binding and electric welding. It has a joint strength higher than that of the base material of the rebar, a speed 5 times faster than electric welding, no pollution, and saves 20% of steel. % and other advantages, it can be divided into three types: extruded joints, tapered threaded joints, and straight threaded joints. [0003] However, when these connectors are in use, the connectors are generally screwed to the head of the steel bar through a wrench, and the installation torque value reaches 300N·m. When a worker uses a wrench, the force arm is only 0.5m. 600N (equivalent to 60Kg), tools such as hammers are often needed on site to complete the installation. ...

AI Technical Summary

Problems solved by technology

[0003] However, when these connectors are in use, the connectors are generally screwed to the head of the steel bar through a wrench, and the installation torque value reaches 300N·m. When a worker uses a wrench, the force arm is only 0.5m. 600N (equivalent to 60Kg), the site often needs tools such as hammers to complete the installation

Moreover, when the steel bars are bundled, the distance between the steel bars and the steel bars is small, and the rotation range of the wrench is small, so it takes about 2 to 4 minutes to install a joint, which is inefficient.

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