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    • 10. 发明申请
    • Electric motor driven screw driving or drilling tool device with planetary gear
    • 电机驱动螺杆驱动或带行星齿轮的钻具装置
    • US20070114050A1
    • 2007-05-24
    • US11595890
    • 2006-11-13
    • Martin BaumannChristoph Maier
    • Martin BaumannChristoph Maier
    • E21B19/16
    • B23B45/008B23B2260/044B23B2260/122B25B23/141F16H35/10
    • The invention concerns an electric motor-driven screw driving or drilling tool device with a planetary gear (4), comprising a ring gear (6) and planet wheels (8) mating with the ring gear, wherein the planet wheels are driven to roll on the ring gear, and the axles (10) of the planet wheels drive a drive shaft, and with a torque adjusting means (34), wherein the ring gear (6) can be locked and fixed relative to the housing via locking bodies (16) which are pretensioned by springs in a radially inward direction, the locking bodies (16) being radially outwardly displaceable when a switch-off torque has been exceeded, such that the ring gear (6) can be rotated relative to the housing, and the drive shaft is no longer driven. In order to improve the ease of operation of the device and reduce its size, the invention proposes leaf springs (22) which extend in the peripheral direction (24) of the ring gear (6), whose lever arm lengths can be adjusted in a peripheral direction to generate different bending forces acting on a respective locking body (16).
    • 本发明涉及一种具有行星齿轮(4)的电动马达驱动的螺丝驱动或钻孔工具装置,该行星齿轮(4)包括齿圈(6)和与齿圈啮合的行星轮(8),其中行星轮被驱动以滚动 环形齿轮和行星轮的轴(10)驱动驱动轴,并且具有扭矩调节装置(34),其中环形齿轮(6)可以经由锁定体(16)相对于壳体被锁定和固定 ),其在径向向内的方向上由弹簧预张紧,当已经超过关闭扭矩时,锁定体(16)可径向向外移位,使得齿圈(6)能够相对于壳体旋转,并且 驱动轴不再驱动。 为了提高装置的操作容易性并减小其尺寸,本发明提出了在环形齿轮(6)的周向方向(24)上延伸的板簧(22),其杆臂长度可以在 以产生作用在相应的锁定体(16)上的不同的弯曲力。