Lifting device

Abstract

The invention relates to a lifting device which comprises a shell, a roller is pivoted in the shell, and a control circuit board and a guide rod are arranged in the shell; a spiral groove is formed in the outer surface of the roller, and a cable capable of being wound and unwound is contained in the spiral groove; an arc-shaped guide block is arranged on the guide rod in a sliding mode, a first protrusion set and a second protrusion set which can be meshed with the spiral groove and can abut against the cable are arranged on the surface of the guide block in the axial direction at intervals, the first protrusion set comprises a plurality of first arc-shaped protrusions, the second protrusion set comprises a plurality of second arc-shaped protrusions, a guide block through hole is formed in the position, where the first arc-shaped protrusions adjacent to the second protrusion set are located, of the guide block, the arc-shaped faces, opposite to the guide block, of the first arc-shaped protrusions are the surfaces of U-shaped structures with the section being concave inwards, and the arc-shaped faces, opposite to the guide block, of the second arc-shaped protrusions are the surface of an inverted U-shaped structure with the section being convex outwards. The different protrusions on the guide block are used for ensuring smooth winding and unwinding of the cable, convenience is brought to use, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the field of hoisting, in particular to a hoisting device. Background technique [0002] The lifting equipment starts a vertical or vertical and horizontal working stroke after retrieving the material, unloads it after reaching the destination, and then travels empty to the reclaiming location to complete a working cycle, and then carries out the second lifting or handling. It is an important tool and equipment to reduce heavy physical labor and improve labor productivity. In the existing lifting equipment, there will be a process of retracting and releasing the sling during the hoisting process, and the sling is retracted and retracted synchronously with the drum. Due to the problem of coordination between the sling and the drum, there will often be a jam phenomenon, resulting in an unsmooth lifting process. Contents of the invention [0003] Aiming at the existing deficiencies, the invention provides a lifting device. [...

AI Technical Summary

Problems solved by technology

[0002] The lifting equipment starts a vertical or vertical and horizontal working stroke after retrieving the material, unloads it after reaching the destination, and then travels empty to the reclaiming location to complete a working cycle, and then carries out the second lifting or handling. It is an important tool and equipment to reduce heavy physical labor and improve labor productivity. In the existing lifting equipment, there will be a process of retracting and releasing the sling during the hoisting process, and the sling is retracted and retracted synchronously with the drum. Due to the problem of coordination between the lifting rope and the drum, there will often be a jamming phenomenon, resulting in an unsmooth lifting process

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