Device and method for monitoring engineering machinery and hoisting disordered ropes thereof

Abstract

The invention discloses a hoisting disordered rope monitoring device, the hoisting disordered rope early warning unit includes: a first detection part, used to acquire hoisting weight information; a second detection part, used to obtain hoisting reel rotation information The controller obtains the pulling force F of the hoisting wire rope, obtains the retracting and unwinding speed V of the hoisting wire rope, and outputs early warning information according to whether the tension F of the wire rope or the retracting and unwinding speed V of the wire rope exceed the limit value; its hoisting disordered rope alarm unit includes: Yang monitoring camera components are used to collect wire rope images; image processing equipment is used to extract wire rope position information from wire rope images and perform parallelism analysis, and output alarm information based on judging whether the wire rope parallelism index exceeds the threshold. The device has early warning and alarm functions for hoisting disordered ropes, which can improve the reliability of the crane to a greater extent. The invention also provides a hoisting disordered rope monitoring method and a construction machine using the hoisting disordered rope 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 for a crane. The present invention also relates to a crane provided with the hoisting disordered rope monitoring device. Background technique [0002] During the construction operation of the crane, the winch lifts the heavy objects suspended on the arm head of the crane through the transmission of the wire rope wound on the drum. [0003] Usually, during the retracting and unwinding process of the wire rope, the wire rope is required to be evenly wound on the hoisting drum. However, in actual operation, depending on the actual operating conditions on the site, the hoisting may cause disordered ropes or rope jams, which may cause the following hazards: (1) causing sudden release of the hoisted load, affecting the stability of the hoisting, and affecting the specific crane. The construction brings potential safe...

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.

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