Sling swing angle detection device and sling bridge crane

Abstract

The invention discloses a sling swing angle detection device and a sling bridge crane. The detection device is used for detecting the swing angle state of a sling, and the sling is suspended through a lifting rope; the detection device comprises a supporting platform and a sliding platform, and the vertex angle positions of the supporting platform are each provided with a supporting piece; the bottom of each supporting piece is provided with a piezoresistive pressure sensitive element; the sliding platform is rectangular, first sliding blocks are arranged on the two long edges of the sliding platform separately, and second sliding blocks are arranged on the two wide edges of the sliding platform separately; the first sliding blocks and the second sliding blocks are further connected to the piezoresistive pressure sensitive elements through elastic assemblies; the lifting rope is swung to drive the first sliding blocks and / or the second sliding blocks to move, and the corresponding elastic assembly generates elastic force; and the elastic force is applied to the piezoresistive pressure sensitive element, and therefore the resistance value of the piezoresistive pressure sensitive element is changed.

Description

technical field [0001] The invention relates to an overhead crane, in particular to a suspension angle detection device and an overhead crane. Background technique [0002] As an important transport tool in the port, the improvement of the operating efficiency of the bridge crane is very important for the improvement of the utilization rate of the port. The double-lift double spreader can grab two containers at one time, which is more efficient than the traditional single spreader. [0003] At present, the bridge cranes in the port are mainly based on mechanical anti-sway. The anti-sway measures mainly include the following measures: 1. Install multi-strand ropes on the spreader to reduce the swing of the container during movement. 2. Raise the container to a higher position and shorten the length of the lifting rope, thereby reducing the swing of the container during the movement. Thereby improving loading and unloading efficiency. All of the above are passive anti-sway...

AI Technical Summary

Problems solved by technology

It may receive the interference of ambient light, causing false detection and calculating wrong swing angle information

For example, capacitive-based swing angle detection may cause a large error between the real swing angle and the actual swing angle due to changes in the air permittivity due to moderate air

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