Steel wire rope anti-disengaging device

Abstract

The invention discloses a steel wire rope anti-disengaging device. The steel wire rope anti-disengaging device comprises a hoisting device, at least one pulley connected with the hoisting device, a steel wire rope wound in the pulley, and a limiting assembly arranged on the outer side of the pulley; the limiting assembly increases the height of the outer wall of the pulley in the direction opposite to the stress direction of the steel wire rope to prevent the steel wire rope from disengaging during work. The limiting assembly comprises at least one first limiting part arranged on the outer side of the pulley; the first limit part is arranged in an L shape, one side of the first limit part is connected with the hoisting device, and the other side is close to the outer wall of the pulley; the side, close to the pulley, of the first limit part is higher than the outer wall of the pulley. According to the steel wire rope anti-disengaging device provided by the invention, the steel wire rope disengaging phenomenon in daily use of a crane is effectively prevented, and meanwhile, the abrasion problem caused when the steel wire rope jumps off in use is avoided; with setting of multi-stageprotection measures, when the steel wire rope disengages, stopping is conducted in time, and more serious accidents are avoided.

Description

technical field [0001] The invention belongs to the field of safety devices, and in particular relates to a wire rope anti-off device. Background technique [0002] In recent years, the demand in the crane market has increased, and the safety of cranes is relatively strict. It is especially important for the original technology improvement. Industrial and mining enterprises use more vehicles, and driving safety is the top priority. The current semi-enclosed cranes There are potential safety hazards in the hook, especially the top limit (upper limit) is particularly important. Once it fails, major safety and equipment accidents may occur. In addition, due to hoisting height or operational errors during operation, the hook head often falls. The wire rope is caught or falls to the ground, causing the wire rope to loosen and fall out of the groove. At present, the hook pulley for driving is composed of a pulley block and a shell. Due to the high lifting height, the hook will fa...

AI Technical Summary

Problems solved by technology

[0005] Although the above-mentioned prior art proposes a technical solution for preventing the wire rope from falling off, both of the above two technical solutions have complex structures. A purely mechanical structure solution is used to prevent the wire rope from falling off, or friction occurs on the contact surface with the steel wire rope, which increases the damage of the steel wire rope. , resulting in problems such as the need to replace the wire rope after a long period of use

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