公开(公告)号：EP1048762A3

公开(公告)日：2001-01-17

申请号：EP00108039.9

申请日：2000-04-20

申请人： HOWA MACHINERY, LTD.

发明人： Ito, Syunji ,  Kagohashi, Toshinori ,  Sato, Teruhiko

IPC分类号： D01H1/22 ,  D01H5/32

CPC分类号： D01H5/32 ,  D01H1/22

摘要： Spinning machine includes draft rollers 3, 4 and 5 and a drive device for driving the draft rollers. The drive device has a drive unit 6 for driving the front draft roller 5, and a drive unit 7 for driving the back and middle draft rollers 3 and 4. Each drive unit has a variable speed motor M2 or M3 and a transmission mechanism, and the variable speed motor of the drive unit 6 for driving the front draft roller 5 is a synchronous AC motor having permanent magnets. A reverse rotation preventing device including a ratchet wheel and a pawl is arranged in the drive unit 6 for preventing a reverse rotation of the front draft roller 5, occurring with a reverse rotation of the synchronous motor M2, caused by the action of the permanent magnets in the synchronous motor upon starting the synchronous motor.

公开(公告)号：EP1048762A2

公开(公告)日：2000-11-02

申请号：EP00108039.9

申请日：2000-04-20

申请人： HOWA MACHINERY, LTD.

发明人： Ito, Syunji ,  Kagohashi, Toshinori ,  Sato, Teruhiko

IPC分类号： D01H1/22

CPC分类号： D01H5/32 ,  D01H1/22

摘要： Spinning machine includes draft rollers 3, 4 and 5 and a drive device for driving the draft rollers. The drive device has a drive unit 6 for driving the front draft roller 5, and a drive unit 7 for driving the back and middle draft rollers 3 and 4. Each drive unit has a variable speed motor M2 or M3 and a transmission mechanism, and the variable speed motor of the drive unit 6 for driving the front draft roller 5 is a synchronous AC motor having permanent magnets. A reverse rotation preventing device including a ratchet wheel and a pawl is arranged in the drive unit 6 for preventing a reverse rotation of the front draft roller 5, occurring with a reverse rotation of the synchronous motor M2, caused by the action of the permanent magnets in the synchronous motor upon starting the synchronous motor.

摘要翻译： 纺纱机包括牵伸辊3,4和5以及用于驱动牵伸辊的驱动装置。 驱动装置具有用于驱动前牵伸辊5的驱动单元6和用于驱动后牵拉辊3和中牵伸辊4的驱动单元7.每个驱动单元具有变速马达M2或M3和传动机构，并且 用于驱动前牵伸辊5的驱动单元6的变速电动机是具有永磁体的同步交流电动机。 在驱动单元6中布置有包括棘轮和棘爪的反转防止装置，用于防止由于永磁体的作用而引起的同步电动机M2的反转而引起的前牵伸辊5的反向旋转 在同步电机启动同步电机时。