Double-winch single-hook lifting equipment and method and system for synchronous calibration of the same

Abstract

The present invention relates to the field of engineering machinery, and discloses a double-winch single-hook lifting device and a method and system for synchronous calibration of the hoist. The method of synchronous calibration of the hoist includes: leveling the The hook of the lifting device; determine the rotation angle difference between each of the winches between adjacent height positions; determine the speed ratio between the two winches according to the rotation angle difference; Said rotational speed ratio adjusts the rotational speeds of the two winches. In the above technical solution, by calculating the rotation angle difference between each hoist at different height positions, and based on the rotation angle difference of each hoist, the speed ratio between the two hoists is calculated, and the two hoists are adjusted through the speed ratio. The rotation speed between two winches can eliminate the synchronization deviation caused by the error of the winch structure parameters, and complete the synchronization calibration between the winches efficiently and quickly.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a double-winch single-hook type lifting device and a method and system for synchronous calibration of the winch. Background technique [0002] At present, in the hoisting synchronous control system of all cranes, the length of the wire rope is calculated by detecting the rotation angle of the hoisting drum and according to the structural parameters of the drum and the parameters of the wire rope. However, the above method has high requirements on structural parts such as reels, and if there are manufacturing errors, it will cause synchronization deviation. Because the structural parameters of the reel are inconvenient to measure, the manufacturing error is irregular and random, and the use of each hoist is also random, resulting in the problem that the diameter change of the wire rope is also highly random and difficult to quantify theoretically. Therefore, in In the calcula...

AI Technical Summary

Problems solved by technology

However, the above method has high requirements on structural parts such as reels, and if there are manufacturing errors, it will cause synchronization deviation

Because the structural parameters of the reel are inconvenient to measure, the manufacturing error is irregular and random, and the use of each hoist is also random, resulting in the problem that the diameter change of the wire rope is also highly random and difficult to quantify theoretically. Therefore, in In the calculation model of the length of the rope, it is difficult to eliminate the synchronization deviation caused by the above-mentioned structural parameter error, and it can only be corrected by artificially adjusting the deviation after the deviation of the hook is observed.

Images