Abstract When using the method of double-disc straight groove grinding in the process of machining rollers, in order to improve the processing efficiency of rollers and meet the requirements of continuous feeding of rollers, a kind of propulsion device is designed which can convert electromagnetic energy into mechanical energy and apply to lapping processing of cylindrical roller. The structural design of the device, the magnetic field distribution and motion condition when the device was under the energized condition were analyzed. ANSYS Maxwell, one kind of electromagnetic field simulation software was used to simulate the 2D model of device. The distribution and motion of the magnetic field were observed, the force operated on each roller in the device and the whole force state under different excitation conditions were obtained. The simulation results showed that: when the device was under energized condition, it would produce travelling-wave magnetic field doing periodic motion along the axis direction, and provide electromagnetic thrust with certain direction and adjustable size, which could meet the requirement of continuous feeding in roller lapping. With the increase of voltage and frequency, the electromagnetic thrust would also increase, and it was convenient to adjust thrust. An experimental platform for measuring electromagnetic thrust was built. Electromagnetic thrust obtained under the same excitation condition through simulation and experiment was compared. The experiment results showed that, the whole electromagnetic thrust acting on rollers would increase with the increasing of voltage and frequency. Under the same excitation condition, the experiment results were close to the simulation results, which verified the accuracy of the simulation results. The device can realize the continuous feeding of rollers and has great practical value.
Received: 09 March 2019
Published: 28 October 2019
YANG Lei, REN Cheng-zu. Simulation and propulsion experimental analysis of electromagnetic propulsion device for cylindrical roller. Chinese Journal of Engineering Design, 2019, 26(5): 611-618.