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    Electric Actuator
    2.
    发明公开
    Electric Actuator 无效
    电动执行器

    公开(公告)号：EP0811461A1

    公开(公告)日：1997-12-10

    申请号：EP97107838.1

    申请日：1997-05-14

    申请人： SMC Kabushiki Kaisha

    发明人： Nagai, Shigekazu, SMC K.K., Tsukuba Gijutsu Center ,  Sakurai, Shuuzou, SMC K.K., Tsukuba Gijutsu Center ,  Nakamura,Masayuki, SMC K.K.,Tsukuba Gijutsu Center

    IPC分类号： B23Q5/40 ,  F16H25/20

    CPC分类号： B23Q5/40 ,  B23Q11/08 ,  F16H25/20 ,  F16H2025/2075

    摘要： Disclosed is an electric actuator which makes it possible to prevent a driving force-transmitting shaft from adhesion of dust or the like, and eliminate any fear for deterioration of driving force-transmitting function. A hole (14) is defined in a body (12) which is arranged to extend in a vertical direction. A motor (30) is secured to one end of the body (12). A feed screw (36) is coaxially connected to a rotary shaft (32) of the motor (30). The feed screw (36) is rotatably supported by angular contact ball bearings (24a), (24b). A feed nut (42) is engaged with the feed screw (36). The hole (14) is slidably engaged with a cylinder member (46) which is formed to be cylindrical and lengthy. The cylinder member (46) surrounds the feed screw 36. The feed nut (42) is secured to one end of the cylinder member (46), and a bracket (48) is secured to the other end thereof.

    摘要翻译： 本发明公开了一种电动致动器，其能够防止驱动力传递轴附着灰尘等，并消除任何对驱动力传递功能劣化的担忧。 孔（14）限定在主体（12）中，主体（12）布置成沿竖直方向延伸。 马达（30）固定到主体（12）的一端。 进给螺杆（36）与马达（30）的旋转轴（32）同轴连接。 进给螺杆（36）由角接触球轴承（24a），（24b）可旋转地支撑。 进给螺母（42）与进给螺杆（36）接合。 孔（14）可滑动地与形成为圆柱形且长的圆柱形构件（46）接合。 圆筒部件（46）围绕进给螺杆36.进给螺母（42）固定在圆筒部件（46）的一端，托架（48）固定在其另一端。