Non-motion-interference automatic-centering spherical rotating hook

Abstract

The invention discloses a non-motion-interference automatic-centering spherical rotating hook which comprises a hook and a lifting ring. The hook and the lifting ring are connected by a hemisphere. The central part of the bottom of the lifting ring is provided with a hemispherical hole in the axial direction, the hemispherical hole is a blind hole and has an upward-opening, the central portion ofthe bottom portion of the hemispherical hole is axially provided with a cylindrical hole, and the cylindrical hole is a through hole; the upper end of the hook can movably pass through the cylindricalhole and is fixedly connected with the hemisphere, the hemisphere is supported in the hemispherical hole, the spherical surface of the hemisphere is engaged with the inner peripheral surface of the hemispherical hole, and the sphere body of the hemisphere is provided with a vent hole. The vent hole penetrates the sphere body of the hemisphere and is communicated with the air, and the air enters amating surface through the vent hole to break the vacuum state of the mating surface, and in the rotating state of the hemisphere, an air film is formed between the hemisphere and the hemispherical hole to reduce friction between the hemisphere and the hemispherical hole and prolong the life of the hook and the lifting ring, and the non-motion-interference automatic-centering spherical rotating hook is safer and more reliable.

Description

technical field [0001] The invention relates to a hoisting machine, in particular to a spherical rotating hook with automatic centering without motion interference. Background technique [0002] The installation and transfer of equipment requires hoisting machinery, and the hook is an important part of the hoisting machinery. The hook and the ring are used in contact with each other. During the hoisting process, the center of the lifting weight is inconsistent with the center of the hook, which often causes uneven wear of the hook and ring, resulting in reduced service life and safety reliability of the hook and ring. [0003] In the prior art, there is also a method of connecting the hook and the ring through a hemisphere. Although it can solve the problem of the center overlap of the hook, the ring and the lifting weight, and reduce the uneven wear between the hook and the ring, in practical applications It is found that after a period of use, the smoother the spherical s...

AI Technical Summary

Problems solved by technology

The hook and the ring are used together in contact. During the hoisting process, because the center of the lifting weight is inconsistent with the center of the hook, uneven wear of the hook and ring is often caused, resulting in a reduction in the service life and safety reliability of the hook and ring.

[0003] In the prior art, there is also a method of connecting the hook and the ring through a hemisphere. Although it can solve the problem of the center overlap of the hook, the ring and the lifting weight, and reduce the uneven wear between the hook and the ring, in practical applications It is found that after using for a period of time, the smoother the spherical surface is ground, the more the spherical surface and its mating part will be integrated under the action of gravity, and the two mating surfaces will be in a vacuum state, resulting in motion interference, and the hook and ring will not be able to automatically align

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