Sonic drill head
    2.
    发明授权
    Sonic drill head 有权
    声波钻头

    公开(公告)号:US06739410B2

    公开(公告)日:2004-05-25

    申请号:US10083206

    申请日:2002-02-26

    IPC分类号: E21B724

    CPC分类号: E21B7/24

    摘要: A sonic drilling head includes a spindle which is both rotated and vibrated at sonic frequency to effect ground penetration of members such as drill rods, etc. Two pairs of rotating eccentric masses are mounted in a sine generator housing. The pairs of masses have intersecting axis. A spiral bevel gear and drive shaft rotate the first pair of masses which engage the second pair of masses so that the pairs of masses are driven in opposite directions. Rotation is imparted to the spindle through a geared bearing isolated by a pack of precision disc springs, which also cooperate with a second set of precision disc springs to isolate the vibrations of the rotating eccentric masses from an outer housing of the sonic drill head.

    摘要翻译: 声波钻头包括主轴,其以声频旋转和振动,以实现诸如钻杆等构件的地面穿透。两对旋转的偏心质量块安装在正弦发生器壳体中。 质量对具有相交轴。 螺旋锥齿轮和驱动轴旋转接合第二对质量块的第一对质量块,使得这对质量块沿相反的方向被驱动。 通过由一组精密碟形弹簧隔离的齿轮轴承将旋转传递给主轴,齿轮组件还与第二组精密碟形弹簧配合,以将旋转的偏心质量块与声波钻头的外壳隔离。

    Actuator position control
    3.
    发明授权
    Actuator position control 失效
    执行器位置控制

    公开(公告)号:US3938016A

    公开(公告)日:1976-02-10

    申请号:US506978

    申请日:1974-09-18

    IPC分类号: G05D3/12 G05B11/14

    CPC分类号: G05D3/12

    摘要: A manually shiftable actuator-position input member and an actuator-operator feedback member cooperate as switch means for controlling the operation of an actuator including a rod connected to be reciprocably driven by a reversible electric motor. The input and feedback members normally occupy neutral positions relative to each other wherein electrical current is disconnected from the motor. Energization of the motor to cause it to drive in the forward and reverse directions may respectively be accomplished by moving the input member in opposite first and second directions from its neutral position. The distance through which the input member is moved preselects the distance through which the motor drives the rod, the motor driving the feedback member via the rod such as to restore the neutral positions of the input and feedback members when the rod has been driven to the preselected position.

    摘要翻译: 手动可移动致动器位置输入构件和致动器操作者反馈构件协作为用于控制致动器的操作的开关装置,该致动器包括连接成由可逆电动机可往复驱动的杆。 输入和反馈构件通常相对于彼此占据中性位置,其中电流与电动机断开。 电动机的通电能够使其沿正向和反向驱动,可以分别通过将输入构件从相对的第一和第二方向从其中立位置移动来实现。 输入构件移动的距离预先选择电机驱动杆的距离,马达通过杆驱动反馈构件,以便当杆被驱动到位置时恢复输入和反馈构件的中立位置 预选职位