Design of Double-drive Mechanism for Energy Saving Lifting Permanent Magnet

Ning Ding,Chao Liu,Shuna Jiang,Jingsong Duan,C.-H Weng,R Weerasinghe,J Wu

doi:10.1051/e3sconf/201911802074

Abstract

On account of great power consume of lifting electromagnet, energy-saving lifting permanent magnet has got more attention. But in the exiting design of lifting magnet, most can only lift the workpiece placed horizontally, and can’t lift the workpiece placed inclined. Aiming at this defect, the authors design the double-drive mechanism. In this design, two sets of tumble, cylindrical gear mechanism and ratchet pawl mechanism were used to ensure that at least one set of mechanisms can work properly in the inclined state. To enable the two sets of mechanisms to drive the rotating magnetic system in the same direction, reversing gear was adopted.

Highlights

Lifting electromagnet is a kind of magnetic transport equipment which realizes loading and unloading by the current control
The lifting permanent magnet is still imperfect, which is that when the ferromagnetic workpiece is placed at a certain angle to horizontal ground, the lifting permanent magnet couldn’t work normally
In view of this shortcoming, this paper designs a kind of double-drive mechanism, which makes the lifting permanent magnet able to lift the inclined workpiece

Summary

Introduction

Lifting electromagnet is a kind of magnetic transport equipment which realizes loading and unloading by the current control. Compared with huge power consumption of lifting electromagnet, the permanent magnet crane technology is a subversive technology. It fits the development strategy of energy conservation and emission reduction. The magnetic field intensity of magnetic pole surface of this design is less than 60Oe when unloading, that is, less than the magnetic intensity that attracts iron fillings. The lifting permanent magnet is still imperfect, which is that when the ferromagnetic workpiece is placed at a certain angle to horizontal ground, the lifting permanent magnet couldn’t work normally In view of this shortcoming, this paper designs a kind of double-drive mechanism, which makes the lifting permanent magnet able to lift the inclined workpiece

Working principle of magnetic circuit

Design of double-drive mechanism

Process of lifting the flat workpiece

Process of lifting the inclined workpiece

Process of unload workpiece

Conclusions