知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

162 条记录 (耗时 0.023 秒)

    Anti-jamming core barrels
    11.
    发明授权
    Anti-jamming core barrels 失效
    抗干扰核心桶

    公开(公告)号：US4558749A

    公开(公告)日：1985-12-17

    申请号：US542386

    申请日：1983-10-17

    申请人： Larry R. Fulkerson

    发明人： Larry R. Fulkerson

    IPC分类号： E21B4/10 ,  E21B25/00 ,  E21B25/02 ,  E21B31/107

    CPC分类号： E21B31/107 ,  E21B25/00 ,  E21B25/02 ,  E21B4/10

    摘要： An improved anti-jamming mechanism for use in a coring tool is devised by providing a rotary jar within the inner barrel of the coring tool. The inner barrel is connected to a bearing assembly into which a bearing shaft is axially and concentrically disposed. The bearing assembly is rotatably journaled to the bearing shaft. The bearing shaft is rotatably and longitudinally fixed with respect to the outer barrel of the coring tool. The bearing shaft and bearing assembly are longitudinally displaceable with respect to each other by Bellville washers. The bearing assembly also includes a rotary anvil which is ultimately brought into contact with a rotary hammer which in turn is fixed with respect to the outer barrel. An impulsive torsional and longitudinal force is imparted by the rotary hammer to the rotary anvil through the resilient coupling between the bearing shaft and bearing assembly disposed within the inner barrel.

    摘要翻译： 通过在取心工具的内筒内设置旋转罐，设计了用于取芯工具的改进的抗干扰机构。 内筒连接到轴承组件，轴承轴轴向和同心地设置在轴承组件中。 轴承组件可旋转地轴颈支承在轴承轴上。 轴承轴相对于取芯工具的外筒旋转并纵向固定。 轴承轴和轴承组件可以由Bellville洗衣机相对于彼此纵向移位。 轴承组件还包括旋转砧座，其最终与旋转锤接触，旋转锤相对于外筒固定。 旋转锤通过轴承轴和设置在内筒内的轴承组件之间的弹性联接，将旋转锤施加到旋转砧上。

    Impact drill bit actuator
    12.
    发明授权
    Impact drill bit actuator 失效
    冲击钻头执行机构

    公开(公告)号：US4289210A

    公开(公告)日：1981-09-15

    申请号：US125125

    申请日：1980-02-27

    申请人： William H. Schoeffler

    发明人： William H. Schoeffler

    IPC分类号： E21B4/10 ,  E21B10/58 ,  E21B1/00

    CPC分类号： E21B4/10 ,  E21B10/58

    摘要： A rotary drive member such as a drill string, has a housing rotatably mounted at its lower end and an axial-throw cam is fixed at the lower end of the drive member in the housing. Chisel blades are axially slidable in the housing and are reciprocated by the cam in such manner that two dimetrically opposed blades are lifted and then forcibly driven downward while other chisel blades are left in contact with the well bottom to intermittently hold the housing against rotation. The chisel blades are sharpened in such a way that they tend to rotate the housing through a small angle at each downward impact.

    摘要翻译： 诸如钻柱的旋转驱动构件具有可旋转地安装在其下端的壳体，并且轴向凸轮凸轮固定在壳体中的驱动构件的下端。 凿刀片在壳体中可轴向滑动并且通过凸轮往复运动，使得两个两个相对的相对的叶片被提升然后被强制地向下驱动，而其他凿刀片与井底保持接触以间歇地保持壳体的旋转。 凿子刀片以这样的方式被磨削，使得它们倾向于在每个向下的冲击下使壳体旋转小角度。