A magnetic lifting device

By designing the alternating arrangement and position switching of the stator and mover components of the magnetic lifting device, the problem of adsorption reliability for complex surfaces or wrapped workpieces is solved, achieving tight adsorption of workpieces and improving safety.

CN122126731APending Publication Date: 2026-06-02CRRC DALIAN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CRRC DALIAN CO LTD
Filing Date
2026-04-15
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

When facing complex surfaces or wrapped workpieces, magnetic lifting devices have a small actual adsorption area, resulting in insufficient adsorption reliability and potential safety hazards.

Method used

A magnetic lifting device was designed, comprising a housing, a stator assembly, and a mover assembly. Different magnetic paths are formed by switching the position of the mover assembly, ensuring that the workpiece can be tightly attracted in the working position. This is achieved by alternating the arrangement of the stator and mover assemblies and using the drive assembly to switch the magnetic paths.

Benefits of technology

It improves the reliability of the lifting device in adsorbing complex surfaces or wrapped workpieces, increases the contact area, and avoids the safety hazards of workpiece slippage and falling off.

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Abstract

This invention relates to the field of lifting device technology, specifically disclosing a magnetic lifting device. The stator assembly comprises multiple sets, all fixed within a housing. The N-S poles of the magnetic conductors in the stator assembly are arranged along the length of the housing. The mover assembly consists of a lower mover base and two mover working parts, both of which are magnetically conductive. The N-S poles of the mover magnets are arranged along the depth of the housing. The mover assembly can move relative to the stator assembly along the depth of the housing to switch between a working position and an idle position. In the working position, two adjacent mover working parts form a second magnetic path with the workpiece, and both the mover working parts and the stator magnetic isolation pad are in contact with the workpiece. In the idle position, two adjacent mover working parts form a third magnetic path with the magnetic conductors. Both the second and third magnetic paths can form a closed loop with the first magnetic path. A drive assembly is used to drive the stator assembly to switch between the working and idle positions. This allows the lifting device to reliably attract various types of workpieces.
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