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一、磁力丝杠的结构 日本光洋机械工业新开发出了一种磁力丝杠,其外观见图1,其结构图见图2。 在图2所示磁力丝杠结构中,螺母为中空圆筒状,螺母内孔用钕(Nd)磁性材料作为永久磁铁,并烧结成有N极、S极的螺纹线。此圆筒螺母装在非磁性的螺母座内。螺母座的两端装有用聚酰胺材料制成的丝杠支承环,这两个大承环对丝杠起支承作用,相当于左右两个滑动轴承。除这两个支承环与丝杠接触外,螺母磁力部分与丝杠不接触。 二、磁力丝杠的规格及其优点 所开发的磁力丝杠规格为:丝杠直径φ6～25mm;丝杠长100～1500mm;螺纹导程4～20mm;丝杠精度C1～C10。
First, the structure of magnetic screw Japan’s Koyo machinery industry has developed a new magnetic screw, the appearance of Figure 1, the structure shown in Figure 2. In the magnetic screw structure shown in FIG. 2, the nut has a hollow cylindrical shape, and the inner bore of the nut is made of a neodymium (Nd) magnetic material as a permanent magnet and is sintered into a N-pole and a S-pole thread. This cylinder nut is housed in a non-magnetic nut holder. Both ends of the nut seat are equipped with a screw supporting ring made of polyamide material. The two large supporting rings play a supporting role on the screw, which is equivalent to two plain bearings on the left and the right. In addition to these two support ring contact with the screw, the nut magnetic part of the screw does not touch. Second, the specifications of magnetic screw and its advantages Developed magnetic screw specifications: screw diameter φ6 ~ 25mm; screw length 100 ~ 1500mm; thread lead 4 ~ 20mm; lead screw accuracy C1 ~ C10.