A bridge crane suspension rope detection device and detection method thereof

Abstract

The invention discloses a bridge crane lifting rope detection device. The lifting rope detection device comprises a plurality of groups of photoelectric detection devices and a control computer electrically connected to each group of photoelectric detection device, wherein each photoelectric detection device comprises two groups of photoelectric detection assemblies; each group of photoelectric detection assembly comprises a laser transmitter, an optical lens and a photosensitive sensor; laser emitted by the laser transmitters irradiates a steel wire rope of a lifting appliance; reflected light rays are incident on the photosensitive sensors through convergence of the optical lenses; the photosensitive sensors convert light signals into electric signals and transmit the electric signals to the control computer; the control computer calculates the length, the speed and the running direction of the steel wire rope according to the received signals. The adopted photoelectric detection devices are short in light path and high in interference resistance; furthermore, by the combination of the characteristic that the textures on the surface of the steel rope are uniformly arrayed spiral lines, the length, the moving speed and the moving direction of the rope can be detected under higher accuracy and fed back to a bridge crane controller; the lifting rope detection device is high in instantaneity and high in applicability; reliable assistance can be provided for a bridge crane driver, so that the production efficiency is improved.

Description

technical field [0001] The invention relates to a bridge suspension rope detection device and a detection method thereof. Background technique [0002] The bridge crane is the key equipment for port container loading and unloading. Its working capacity determines the cargo handling capacity of the terminal. In the actual production process, the designer needs to consider both the working efficiency and safety of the bridge crane. [0003] Most of the bridge cranes used in the production process are not equipped with positioning and anti-sway devices. The measurement of the swing angle and rope length is basically based on the visual inspection of the bridge crane driver, which has high requirements on the operation skills and mental state of the bridge crane driver. In some large-scale container bridge crane systems, in order to achieve better operating results, some electronic anti-sway and mechanical anti-sway devices are installed, but the devices are complicated, the ant...

AI Technical Summary

Problems solved by technology

[0005] When the container is hoisted into the cabin, if the deformation of the grid slot is blocked by the container, the weight detection signal of the bridge crane will suddenly become weak. Because the output power of the hoisting motor is constant, the speed of unwinding the rope may increase instantaneously, and the driver has no time to respond. cause security incident

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