Double-hoist, double-spreader bridge crane experimental facility

Abstract

A double-hoist, double-spreader bridge crane experimental facility comprises a trolley fixed on the supporting frame of a gantry, the trolley is connected with the gantry through a driving mechanism, lift control motors are respectively arranged on both sides of the trolley, reels connected with the motors are connected with spreaders through swing ropes, swing angle-measuring devices are arranged on the lower end of the trolley, and signal processors are arranged on the upper end of the trolley; each swing angle-measuring device comprises a rotary rocker assembly arranged inside, the rotary rocker assembly comprises a big semicircular rocker and a small semicircular rocker which are crossed by each other, and grating measuring devices are respectively arranged on one end of the big semicircular rocker and one end of the small semicircular rocker; each grating measuring device comprises a grating disk, a lens and an indicating grating are arranged by both sides of the grating disk, an LED (light-emitting diode) point light source is arranged by one side of the lens, and a photoelectric element is arranged by one side of the indicating grating, and is connected with one of the signal processors through a signal cable. The double-hoist, double-spreader bridge crane experimental facility does not need additional sensors or detectors, the cost is low, the structure is simple, and the double-hoist, double-spreader bridge crane experimental facility is convenient to use.

Description

technical field [0001] The invention relates to a bridge crane experimental device, in particular to a bridge crane experimental device with double lifts and double spreaders. Background technique [0002] Most of the bridge cranes currently in use are single-lift and single-spreader systems, which are mainly operated manually, and almost no swing angle measuring device is used, and the swing of the spreader and load is not intuitively displayed to the container operator. , making it more convenient for the operator to suppress the swinging operation; only in some large container bridge crane systems, in order to achieve better operating results and improve loading and unloading safety and efficiency, some mechanical anti-sway devices and electronic anti-sway devices are installed . These devices belong to passive anti-sway. To truly realize the automatic control of the bridge crane, an active anti-sway method must be adopted, that is, to take appropriate operations to supp...

AI Technical Summary

Problems solved by technology

However, due to the complex structure of the bridge crane system and two spreaders that can be lifted separately, it brings a lot of inconvenience to the measurement of the corresponding swing angle.

At present, most of the devices for detecting the swing angle of bridge cranes are complex in structure, high in cost, low in stability and low in accuracy

Moreover, most of these devices are not suitable for detecting the swing angle of double-sling bridge cranes, and even on-site container crane operators often judge the size of the swing angle by visually observing the movement of the spreader and the load, which not only makes the measurement inaccurate, but also makes the work People are more fatigued, resulting in reduced work safety, work quality and work efficiency

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