Method and system for detecting load stroke of hoisting wire rope and hoisting control mechanism

Abstract

In the method for detecting the load stroke of the hoisting steel rope, an initialization step is firstly performed to obtain reference information of the hoisting steel rope including a reference position, a reference ascending stroke and a reference descending stroke. Then detect and obtain the current information including the current position, force value and force moving direction of the hoisting steel rope. Then obtain the load state according to the force value. When the hoisting steel rope is the load, first calculate the cumulative load stroke based on the benchmark information and current information. The cumulative load stroke is the sum of the current cumulative upward stroke and the current cumulative downward stroke, and then proceed The step of updating the benchmark information; when the hoisting steel rope is empty, directly perform the step of updating the benchmark information. Then store the current position and calculation results and display the current position and calculation results. The hoisting steel rope load stroke detection method can judge the cumulative load stroke of the hoisting steel rope, so as to accurately represent the actual service life of the hoisting steel rope. The invention also relates to a hoisting steel rope load stroke detection system and a hoisting control device.

Description

technical field [0001] The invention relates to the technical field of hoisting machinery, in particular to a hoisting steel rope load stroke detection method, a hoisting steel rope load stroke detection system and a hoisting control mechanism. Background technique [0002] In the field of engineering machinery, the hoisting device is a widely used hoisting mechanism, which drives the movement of the hoisting steel rope through the rotation of the reel, thereby realizing the hoisting function of the engineering machinery. Among them, hoisting steel ropes are often lost due to friction or entanglement. In order to consider the actual service life of a hoisting rope, it is necessary to know the effective load travel of the hoisting rope. [0003] The existing hoisting steel rope stroke detection system uses the encoder installed on the hoisting drum to detect the angle information of the hoisting drum, and then uses the information processor to combine other structural parame...

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Problems solved by technology

[0004] However, the existing hoisting wire rope stroke detection system can only simply detect the position of the hoisting wire rope and the distance it moves, and cannot judge whether the hoisting wire rope is loaded, let alone obtain the travel distance of the hoisting wire rope. Therefore, the actual service life of the hoisting steel rope cannot be judged

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