Automatic control device of work platform for high altitude operations based on programmable controller

Abstract

The invention discloses an automatic control device of a work platform for high altitude operations based on a programmable controller, which relates to an automatic control device. The automatic control device comprises an acquiring unit and a control unit, wherein the acquiring unit and the control unit are connected through a shield screen cable; the acquiring unit consists of a tension sensor, a double-shaft tilt angle sensor and a Hall current sensor; and the control unit consists of a programmable controller (PLC), a text display, an electric relay, a limiting switch and a buzzer. The automatic control device realizes real-time data display at a state of a hoisting machine in the operation of the work platform for high altitude operations and a tilt angle and loading of a suspending platform, automatically alarms the fault and the overloading, and automatically levels and controls the tilt angle of the suspending platform (execution of an overstrike mode). The control device is suitable for the automatic control device of the work platform for the high altitude operations which has two-point or multi-point hoisting capability, and has the advantages of simple operation, stable control, high reliability, strong anti-jamming capability and long service life.

Description

technical field [0001] The present invention relates to an automatic control device, in particular to an automatic control device for a high-altitude work platform based on a programmable logic controller (PLC). The control device is suitable for a high-altitude work platform with two-point or multi-point lifting capabilities . Background technique [0002] With the development of industrial buildings in our country, there are many large-scale industrial building maintenance and equipment installation projects. Most of these projects have high and uneven working surfaces, which are at a certain angle or radian. The construction methods mainly rely on working platforms for high-altitude operations. At present, the control device of the working platform for high-altitude operations is controlled by an electrical relay. Due to the uneven load of the suspended platform and the difference in performance between hoists, the suspended platform often tilts during the lifting proces...

AI Technical Summary

Problems solved by technology

This method completely relies on the operator's naked eye observation, the adjustment accuracy cannot be guaranteed, and there is a certain risk in completing the whole process at high altitude

At the same time, during the lifting process of the suspended platform, the existing control device cannot overload the platform, and the elevator stalls to give an alarm and provide protection. The construction personnel cannot deal with it in time, resulting in the occurrence of vicious falling accidents from high altitudes.

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