Tightening device of circuit stringing

Abstract

A tightening device of a circuit stringing comprises a sleeve (1) with a sealed end and a trapezoidal screw (7) capable of relatively moving in the sleeve (1). One end of the trapezoidal screw (7) is connected with a lead tightening bracket; an opening end part of the sleeve is internally formed with a worm gear transmission part; the worm gear transmission part comprises a worm wheel (5) and a worm (6); the peripheral faces of inner and outer rings of the worm wheel (5) are formed with an annularly hollow worm wheel driving and engaging with the gear; the gear on the inner ring peripheral face of the worm wheel (5) is screwed and engaged with the trapezoidal screw (7); the gear at the outer ring peripheral face of the worm wheel (5) is screwed and engaged with the worm (6); therefore therotation of the worm (6) drives the worm wheel (5) to rotate; and the rotating of the worm wheel (5) drives the trapezoidal screw to move in the sleeve up and down. The spiral angle of the trapezoidal screw of the tightening device of the circuit stringing of the invention is small, and has a self-locking function; and the tightening device is featured with simple structure, light weight, small volume, high transmission efficiency of gear, convenient operation and maintenance, and safety.

Description

technical field [0001] The invention relates to a high-voltage line stringing tool, and more particularly relates to a line stringing tightening device. Background technique [0002] So far, a variety of tightening tools or devices have been used when stringing high-voltage wires, for example, there are multi-functional tighteners, ratchet take-ups, double-hook tighteners, steel wire ghost claw tighteners, and tiger head tighteners. Devices, ratchet lever hoists, chain chain hoists, wire rope traction hoists, etc. However, the various tightening tools or devices lack self-locking function, or have complex structures, heavy weight, and large volume, or the gear transmission efficiency is not high, the lifting speed of the screw is unsatisfactory, or the operation and maintenance are inconvenient and safe. Poor reliability. [0003] For this reason, hydraulic tensioner is often used in recent high-voltage line stringing. However, due to the field operation of high-voltage li...

AI Technical Summary

Problems solved by technology

However, the various tightening tools or devices lack self-locking function, or have complex structures, heavy weight, and large volume, or the gear transmission efficiency is not high, the lifting speed of the screw is unsatisfactory, or the operation and maintenance are inconvenient and safe. poor reliability

[0003] For this reason, hydraulic tensioners are often used for high-voltage line stringing recently. However, due to the field operation of high-voltage line stringing, the environmental conditions are poor, oil leakage is easy, and maintenance is difficult.

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