绿色节能抗斜式起重永磁铁的设计与研究

Design of Green Energy Saving Anti⁃inclined Lifting Permanent Magnet

为了克服起重电磁铁耗电量大的缺点,绿色节能的起重永磁铁成了近些年研究的热点。本文通过分析和对比起重永磁铁与起重电磁铁之间的性能差异,设计出一种兼顾倾斜吊装和水平吊装的抗斜式起重永磁铁。完成了起重永磁铁的磁路设计,计算出固定磁系与旋转磁系所需磁体以及导磁体的尺寸,并分析了所设计磁路在卸物状态下的残余磁场强度;根据旋转磁系的动作特点,设计出抗斜驱动机构,该机构包含两组旋向相反的棘轮转臂机构以及锥齿换向机构,用以保证倾斜状态下至少有一组可以正常驱动旋转磁系旋转,实现吸、卸物。本文解决了倾斜状态下单转臂起重永磁铁无法正常工作的难题。

To overcome the shortcomings of large power consumption of lifting electromagnet,green energy saving lifting permanent magnet has become a hotspot in recent years.Based on the analysis and comparison of the performance difference between the lifting permanent magnet and the lifting electromagnet,we design a kind of anti-inclined lifting permanent magnet which has the ability to lifting the workpiece placed level or inclined.First,the structure design of permanent magnet ferromagnetic circuit is completed,and the size of permanent magnet and magnetizer of fixed magnetic system and rotating magnetic system is calculated,and the residual magnetic field strength under the unloading state of the design is analyzed.Then,according to the characteristics of the rotating magnetic system,the anti-inclined drive mechanism is designed,consisting of two sets of ratchet rotating arm mechanism with opposite rotation direction and bevel gear reversing mechanism,so as to ensure that at least one set can drive the rotating magnetic system to hold and release workpiece.The problem that single rotating arm lifting permanent magnet cannot lift the inclined workpiece is solved.