Multi-swing angle detection device for multi-spreader bridge crane based on optical sensor locator

Abstract

The invention relates to a multiple-swing angle detection device based on a light sensing positioner for a multi-lifting-appliance bridge crane. A hole-shaped cold laser emitting block on a lifting appliance serves as an emitting light source of the cold laser; a cold laser refraction dielectric plate on a swing rope is used as a refraction medium of the cold laser; a light sensing positioning and receiving plate on the swing rope serves as a receiving device of a refraction light corresponding to the cold laser, and the position data of a laser point generated by the refraction light on the light sensing positioning and receiving plate are obtained when the the lifting appliance is in a swinging or a non-swinging state by arranging the light sensitive PN junctions of the array; and a laser point position calculation CPU calculates a swing angle during the lifting appliance swings according to the difference between the position data when the lifting appliance swings or does not swing. The multiple-swing angle detection device solve the problem of synchronous detection of the multiple lifting, multiple lifting appliances and multiple swing angles of the multiple lifting appliances, and the device is simple in structure and low in cost, easy to manufacture, high in anti-interference capability, free of severe weather influence, high in detection precision and high in measurement speed.

Description

technical field [0001] The invention relates to optics, electronic technology and transparent material technology, in particular to a multi-swing angle detection device for a multi-sling bridge crane based on an optical induction locator. Background technique [0002] In the large ports where existing containers are loaded and unloaded, the existing bridge cranes only have single spreader and double spreader cranes. Such bridge cranes can only carry one or two containers at a time during the process of moving goods. The efficiency is very low and time-consuming, affecting the quality of work. In order to improve the loading and unloading efficiency of bridge cranes, in the future development of bridge cranes, bridge cranes will develop in the direction of multi-spreader bridge cranes, with continuous improvement and innovation. Therefore, under the background of multi-slinger bridge cranes, various detection devices for multi-slinger bridge cranes are extremely important. ...

AI Technical Summary

Problems solved by technology

[0003] Existing bridge crane detection devices are designed for single or double spreader bridge cranes. They all use relatively complicated detection instruments for the detection of spreaders, which are expensive, inconvenient to maintain and low in accuracy.

Moreover, this type of detection device is not suitable for swing angle detection of multi-spreader bridge cranes (three or more)

At the same time, the existing container crane operators often use their eyes to observe the spreader and the load to obtain its swing situation. This method is not only inaccurate but also easily leads to work fatigue, which affects the handling efficiency and quality of the crane.

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