论文部分内容阅读
一种耗能小的磁轴承能在移动零件和固定零件之间保持一个精密的微小间隙。该轴承是由永久磁铁和电磁铁所组成的定子构成,它设置在可移动的管形零件内孔中。永久磁铁提供了密集的直流磁力线,其磁力线通路见侧视图,在永久磁铁的端部是由线圈围绕着的电枢,其磁力线通路参见端视图。由于永久磁铁提供了总磁力线的大部分,而且它不消耗功率,这样电磁铁就只要以很小电流来提供“微调”磁力线即能产生很大的控制力,当移动零件的中心与定子中心重合时,控制磁力线接近于零,此时功率
A small energy-consuming magnetic bearing to maintain a fine gap between moving parts and fixed parts. The bearing is composed of a permanent magnet and a stator composed of electromagnets, which is provided in the removable tube-shaped parts bore. The permanent magnets provide a dense DC magnetic flux line, the magnetic flux path of which is shown in side view, and the end of the permanent magnet is an armature surrounded by a coil. See the end view for the flux path. Since the permanent magnet provides most of the total magnetic flux and it does not dissipate power, the electromagnet gives great control as long as the electromagnet provides “trim” magnetic flux at a very small current. When the center of the moving part coincides with the center of the stator When the control of magnetic lines close to zero, then power