Adjustable magnetic sling

Abstract

The invention discloses an adjustable magnetic sling comprising an outer box, wherein a permanent magnet block is fixedly installed inside the outer box, a concave groove is provided on the top of thepermanent magnet block, the side wall of the permanent magnet block is fixedly installed with a magnetic switch, a lifting ring is fixedly connected inside the concave groove, the top of the permanent magnet block is fixedly installed with a connecting plate, the top of the connecting plate is movably installed with a rotating frame, and a limit hole is provided inside the rotating frame. By adopting neodymium iron boron permanent magnet material as the core of the product, the invention can be used without electricity when working, and is not easy to generate heat during the working. The optimized magnetic circuit design makes the residual magnetism almost zero. The neodymium iron boron material makes the product smaller, lifting force stronger, self weight lighter, probability of failure lower and service life longer. The design of a telescopic rod can make the sling absorb various irregular-shaped metal objects more stably. The design of a clamping block can increase the stabilityand safety of the permanent magnet block during adsorption.

Description

technical field [0001] The invention relates to the technical field of hoisting equipment accessories, in particular to an adjustable magnetic hoist. Background technique [0002] The electromagnetic force crane generates a magnetic field through the magnetoelectricity of the exciting coil, and the generated electromagnetic attraction depends on the ampere-turns of the electrified coil. When the electromagnet is working, it is always electrified, so it needs tow cable work, and it consumes a lot of power, and it is easy to work. Heat generation, hysteresis phenomenon, and poor operation safety. Therefore, when the electromagnetic force crane is working, it is necessary to be equipped with water-cooling equipment, power-off prevention equipment, delay devices, and take-up reels and other auxiliary equipment, resulting in large equipment volume, heavy weight, complex technology, and Many faults, heavy maintenance workload, short service life and many other shortcomings, with t...

AI Technical Summary

Problems solved by technology

[0002] The electromagnetic force crane generates a magnetic field through the magnetoelectricity of the exciting coil, and the generated electromagnetic attraction depends on the ampere-turns of the energized coil. When the electromagnet is working, it is always energized, so it needs tow cable work, and it consumes a lot of power. Heat generation, hysteresis phenomenon, and poor operation safety. Therefore, when the electromagnetic force crane is working, it is necessary to be equipped with water-cooling equipment, power-off prevention equipment, delay devices, and take-up reels and other auxiliary equipment, resulting in large equipment volume, heavy weight, complicated technology, and Many faults, heavy maintenance workload, short service life and many other shortcomings, with the emergence of high-performance NdFeB rare earth materials, it has become a trend to use NdFeB permanent magnet materials to develop magnetic appliances, and permanent magnet spreaders came into being

[0003] However, ordinary magnetic slings can only absorb regular objects well, but not irregular objects, so they cannot be used or cause safety problems.

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