A steel plate lifting device

Abstract

The invention relates to a steel plate lifting device which comprises a lifting hook and further comprises a displacement sensor, an electromagnetic absorption lifting unit, a distance sensor, a control unit, a switch and a power supply, wherein the displacement sensor is arranged on a lifting hook body, and is used for detecting displacement signals generated by relative sliding of the lifting hook and a steel plate and transmitting the displacement signals to the control unit; the electromagnetic absorption lifting unit is arranged on the upper surface of the lifted steel plate; the distance sensor is arranged between the electromagnetic absorption lifting unit and the steel plate and is used for detecting the distance between the electromagnetic absorption lifting unit and the lifted steel plate; the control unit receives detection results from the displacement sensor and the distance sensor and controls the electromagnetic absorption lifting unit according to the detection results to work to realize absorption of the steel plate. The steel plate lifting device realizes intelligent detection, prevents accidents, is more economic and saves more energy.

Description

technical field [0001] The invention relates to a steel plate lifting device. Background technique [0002] The steel plate is a flat-shaped steel material that is poured with molten steel and pressed after cooling. The existing steel plates can be divided into many specifications, and it is not easy to remove the steel plate when the large-scale steel plate is unloaded, and most of the lifting methods used are steel plates. Hooks are hooked on both sides, and the hooks are connected to the crane lifting device through wire ropes, so there are the following problems: [0003] First, the driving operator watches the hoisting status of the steel plate from a long distance, and lifts the steel plate bit by bit through the rotating motor. If there is a pause during the lifting process, vibration will occur, and it is easy to slip between the hook and the steel plate, and the steel plate will fall. [0004] Second, the lifting operation of the steel plate in the workshop needs t...

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Problems solved by technology

[0003] First, the driving operator observes the hoisting status of the steel plate from a long distance, and lifts the steel plate bit by bit through the rotating motor. If there is a pause during the lifting process, vibration will occur, and it is easy to slip between the hook and the steel plate, and the steel plate will fall.

[0004] Second, the lifting operation of the steel plate in the workshop needs to manually install the hook on both sides of the steel plate, and then pass the information that the hook is fixed to the driver, who then lifts and moves the steel plate by starting the hoist; The consequences of operation errors are unimaginable, and the work requirements for the driving operators are relatively high

[0005] Application number CN201210442703.0 discloses a steel plate lifting device, which relates to a steel plate lifting device, including a height-adjustable lifting body, the top of the lifting body is fixed with a hook for lifting the lifting body, and the side of the lifting body There is a locking plate on the wall, and there is a gap between the locking plate and the lifting body to match the lifted steel plate, and a locking plate is provided on the opposite surface of the locking plate and the lifting body to lock the steel plate in the gap. device; the disadvantage of this invention is that the relative fixation between the lifting body and the steel plate is mainly achieved through mechanical locking pieces and friction. When the weight is heavy, after the mechanical locking piece is damaged, or when the surface of the steel plate contains oil, there will still be steel plate Possibility of slipping with lifting body

This invention absorbs the steel plate by electromagnetic force, although the steel plate will not fall, but it requires a lot of cost

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