Special-purpose wrench for elevator belt hopper bolt

Abstract

The invention discloses a special-purpose wrench for an elevator belt hopper belt. The special-purpose wrench comprises a sleeve, wherein a cavity, which is adaptive to a nut of the elevator belt hopper bolt and capable of containing the nut, is formed on the head part of the sleeve; a magnetic adsorption block is arranged on the inner part of the cavity; the distance between the surface of the magnetic adsorption block and the end port surface of the sleeve is bigger than the height of the nut; at least one bulged limiting block is arranged on the inner wall of the cavity; and the limiting block is used for limiting a jaw at the inner side of the screw cap. The special-purpose wrench for the elevator belt hopper bolt is simple in structure, capable of realizing screw-in type installation of a steel wire elevator belt hopper bolt, capable of preventing threads of the bolt from being damaged and capable of improving the installation strength.

Description

technical field [0001] The invention relates to a lifting belt installation tool, in particular to a special wrench for lifting belt hopper bolts. Background technique [0002] At present, because of its high strength and excellent tear resistance, steel wire hoisting belts are widely used in coal, mining, ports, metallurgy, electric power, chemical and other fields, and are generally used for long-distance, large-capacity, high-speed Convey materials. [0003] The steel wire lifting belt generally needs to be installed and combined with the hopper when it is used, but the current general installation and combination method is to use bolts, and the structure of the bolts is as follows: figure 1 As shown, it includes a disc-shaped nut. The near section of the stud near the nut is a smooth section, and the far section is a threaded section on which a nut is installed. When in use, pass the studs through the steel wire lifting belt and tighten them with nuts. In order to pre...

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Problems solved by technology

However, due to the distribution of criss-cross steel wires in the steel wire lifting belt, it is easy to damage the thread of the threaded section of the stud when the above-mentioned installation method is adopted, resulting in the phenomenon of falling off when the nut is used to fasten in the later stage, and the installation efficiency is very low

[0005] For a long time, those skilled in the art have also been exploring a more reasonable installation method, but because the nut of the bolt is disc-shaped, it cannot be clamped with a traditional wrench or other clamps at all, which has also become a long-standing problem in the field. a technical problem

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