Electromagnetic hoisting device capable of selectively adsorbing

Abstract

The invention relates to the field of hoisting devices, particularly to an electromagnetic hoisting device capable of selectively adsorbing. The electromagnetic hoisting device comprises a base, a stand column, a traveling frame, a cross beam and an electromagnet, wherein one end of the stand column is fixedly connected with the base, and the other end of the stand column is rotatably connected with the cross beam; one end of the cross beam is connected with a counterweight block, and the other end of the cross beam is connected with the traveling frame through a guide rail; the guide rail isarranged at the bottom of the cross beam; the traveling frame is capable of moving along the direction of the guide rail; the traveling frame is connected with the electromagnet through a telescopic mechanism and controls the electromagnet to move; the electromagnet comprises at least two iron core groups; each iron core group comprises at least three iron cores; independent coils are respectivelywound on the surface of each iron core; the coils are connected with an external circuit; and the coils of each iron core group are respectively connected with a relay in series, and different magnetic circuits are formed through the on / off of the relays. According to the electromagnetic hoisting device capable of selectively adsorbing, one or more workpiece at a designated position can be adsorbed, the working time is saved, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of lifting, in particular to an electromagnetic lifting device which can be selectively absorbed. Background technique [0002] In the production workshop, it is often necessary to transport workpieces with ferromagnetic substances such as steel. This kind of workpiece itself has a huge weight, and it is adsorbed by using an electromagnet during transportation. Since the workpieces in the workshop are centrally stored, when it is necessary to When a certain workpiece in a special position is transported, it is often necessary to transport other nearby workpieces first to be able to transport the workpiece at the specified position, which will waste more time and labor, resulting in a reduction in production efficiency. Contents of the invention [0003] In order to solve the above-mentioned existing technical problems, the present invention provides a selective adsorption electromagnetic lifting device cap...

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Problems solved by technology

[0002] In the production workshop, it is often necessary to transport workpieces with ferromagnetic substances such as steel. This kind of workpiece itself has a huge weight, and it is adsorbed by using an electromagnet during transportation. Since the workpieces in the workshop are centrally stored, when it is necessary to When a workpiece in a special position is transported, it is often necessary to transport other nearby workpieces before the workpiece in the specified position can be transported, which will waste more time and labor, resulting in a reduction in production efficiency

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