Method for resetting tool of aluminium electrolysis multifunctional overhead traveling crane and device thereof

Abstract

The invention discloses a method for resetting a tool of an aluminium electrolysis multifunctional overhead traveling crane and a device thereof. The method comprises the following steps of: detecting the practical position of an inductor which moves up and down along with a tool through a fixed upper induction signal switch; and when the practical decline amount delta ss of the inductor is larger than a preset allowed decline amount delta sy, transmitting single alarm by the upper induction signal switch to drive the tool to be automatically reset at an initial height. The device comprises the inductor (2), the upper induction signal switch (4), a lower induction signal switch (5) and an allowed decline position induction switch (8), wherein the inductor (2) is fixed on a tool moving part (1), the upper induction signal switch (4) and the lower induction signal switch (5) are fixed on a tool-fixing guide part (3), and the upper induction signal switch, the lower induction signal switch and the allowed decline position-inducting switch are connected with a work switch (6) and a tool operating rod (7). The invention can automatically reset the tool when the tool of the overhead traveling crane is declined to a dangerous height, and thereby preventing the lower of the tool and the upper mechanism of an electrolytic bath from having the mechanical collision accident.

Description

technical field [0001] The invention relates to a method and device for resetting an aluminum electrolysis multifunctional crane tool, and belongs to the technical field of aluminum electrolysis multifunctional crane operating tools. Background technique [0002] In the aluminum electrolysis workshop of the electrolytic aluminum plant, the aluminum electrolysis multifunctional crane is commonly used for production operations. The aluminum electrolysis multifunctional crane is equipped with various operating tools, such as shell breaking, pole changing, and slag removal tools. The lifting part of the aluminum electrolytic multifunctional crane is driven by an oil cylinder. When the oil cylinder leaks, it will cause the operating tool to slide down slowly. At present, the reset of the aluminum electrolytic crane tool is all based on manual visual inspection and manual reset. There are many human factors in this method. If there is no immediate reset during operation, when the...

AI Technical Summary

Problems solved by technology

There are many human factors in this method. If there is no immediate reset during operation, when the tool on the overhead crane gradually slides down to the lower end of the tool and can touch the upper mechanism of the electrolytic cell, due to the large mass of the overhead crane, the inertia is also large during operation, which is very difficult. If it is difficult to stop immediately, there will be a mechanical collision accident between the lower end of the tool and the upper mechanism of the electrolytic cell

Therefore, the existing reset method of aluminum electrolytic multi-function crane tool is still not ideal enough, and cannot meet the needs of actual production

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