Engineering machinery and engineering machinery winding disorder cable monitoring device and method

Abstract

The present invention discloses a winding disorder cable monitoring device, a winding disorder cable early warning unit comprises a first detection part for acquiring winding lifting weight information, a second detection part for acquiring winding winding-drum rotation information and a controller to acquire a winding steel wire rope pull force F, acquire a winding steel wire rope deploying and retracting speed V and output early warning information according to the case that whether the steel wire rope pull force F or the steel wire rope deploying and retracting speed V exceeds a limit value; a winding disorder cable alarm unit comprises a winding monitoring camera part for capturing a steel wire rope image and an image processing apparatus, and the image processing apparatus is used for extracting steel wire rope position information from the steel wire rope image for parallelism analysis and outputting the alarm information according to the judgment that whether the steel wire rope parallelism exceeds a threshold value. The device has winding disorder cable early warning and alarm functions, and can greatly improve reliability of a crane. The present invention also provides a winding disorder cable monitoring method and engineering machinery using the winding disorder cable monitoring device.

Description

Technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a hoisting rope disorder monitoring device and method of a crane. The invention also relates to a crane provided with the hoisting rope monitoring device. Background technique [0002] During the construction of the crane, the hoisting lifts and lowers the heavy objects suspended on the crane boom through the transmission of the wire rope wound on the drum. [0003] Generally, in the process of retracting and unwinding the wire rope, the wire rope is required to be evenly wound on the winding drum. However, in actual operation, depending on the actual operating conditions on site, the hoisting will have disordered ropes or rope jams, which will cause the following hazards: (1) The sudden release of the hoisted objects will affect the lifting stability. The construction brings potential safety hazards; (2) damage to the wire ropes, resulting in scrap wire ropes, increasin...

AI Technical Summary

Problems solved by technology

This kind of alarm device must rely on the mechanical structure to sense the occurrence of hoisting disorder, not only the installation will be limited, but also the mechanical structure will be deformed due to the long-term outdoor operation of the crane, which will reduce the detection accuracy and low reliability.

[0013] In addition, the above detection methods and devices can only have detection results after the rope disorder has occurred in the winch, and the occurrence of rope disorder cannot be avoided.

Images