Anti-falling device for feeding steel wire rope on vacuum induction furnace

Abstract

The invention provides a vacuum induction furnace upper feeding steel wire rope anti-falling device which comprises a supporting plate, a steel wire rope wheel, a hanging lug heavy hammer and a steel wire rope, the top of the supporting plate is fixedly connected with the top of an upper feeding cavity of a vacuum induction furnace, the steel wire rope wheel is arranged on the supporting plate, and the hanging lug heavy hammer is arranged on the hanging lug heavy hammer. The steel wire rope bypasses the steel wire rope wheel and can hang the hanging lug heavy hammer, and the steel wire rope can drive the hanging lug heavy hammer to ascend and descend; and the hanging lug heavy hammer is used for hanging a production auxiliary tool. The steel wire rope anti-falling device can prevent the steel wire rope from jumping out of a groove and falling off from the steel wire rope wheel in the ascending and descending process of the hanging lug heavy hammer, and prevents the position of an encoder in the vacuum induction furnace from being abnormal. When the upper feeding isolation valve is closed, the situation that the unrecycled part of the steel wire rope clamps an isolation valve rubber ring to cause air leakage can be prevented.

Description

technical field [0001] The invention relates to the technical field of steel-making production equipment, in particular to an anti-dropping device for feeding steel wire ropes on a vacuum induction furnace. Background technique [0002] The vacuum induction furnace in the metallurgical industry is smelted and produced in a vacuum state. At present, the domestic vacuum induction furnace has a charging chamber, and its temperature measurement, feeding and sampling are all completed in a vacuum state by means of a wire winch lifting system. Its structure is that the hoisting end is coiled with a large wheel wire rope, and the small wheel end is positioned by a fixed pulley. The lifting length of the wire rope is controlled by the number of turns of the servo motor encoder. During the feeding process, the barrel connected by the heavy hammer touches the bottom. Or when the crucible sticks to the scrap steel, the lifting and hoisting wire rope is easy to change jobs. Since the v...

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Problems solved by technology

Its structure is that the hoisting end is wound by a large wheel and the steel wire rope is wound, and the small wheel end is positioned by a fixed pulley. The lifting length of the steel wire rope is controlled by the number of rotations of the servo motor encoder. Or when the crucible sticks to scrap steel, the hoisting wire rope is easy to jump ship

Since the value of the lifting and lowering position encoders remains unchanged by default, the number of hoisting and lifting rotations is also the same. When the wire rope skips the slot, when the wire rope is recycled, due to the smaller winding diameter of the recovery, the actual wire rope will have some ropes hanging on the upper feeding isolation. At the bottom of the valve, the steel wire rope cannot be completely recovered, and the isolation valve cannot be completely sealed. The entry of oxygen, nitrogen and other gases in the atmosphere into the melting chamber will cause a sudden increase in the oxygen and nitrogen content in the molten steel, which will affect the quality of important products such as high-temperature alloy steel and gas steel. cause major quality accidents

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