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100 条记录 (耗时 0.016 秒)

    Disc type center cutter for a boring machine
    91.
    发明授权
    Disc type center cutter for a boring machine 失效
    用于镗床的盘式中心切割机

    公开(公告)号：US3756332A

    公开(公告)日：1973-09-04

    申请号：US3756332D

    申请日：1971-11-01

    申请人： ROBBINS CO

    发明人： CRANE C

    IPC分类号： E21B10/12 ,  E21B10/22 ,  E21D9/10 ,  E21B9/08 ,  E21B9/12

    CPC分类号： E21D9/104 ,  E21B10/12 ,  E21B10/22

    摘要： A fixed shaft is mounted on the cutterhead to extend across the rotary axis of the cutterhead. A plurality of independently freely rotating disc cutter wheels are mounted on said shaft at different radial spacings from the cutterhead axis. The cutterhead carries additional disc cutters spaced radially outwardly from the center cutter assembly. All disc cutters include circumferential cutting edges which cut concentric kerfs in the rock at the tunnel face and sloping breaker surfaces on opposite sides of the cutting edge for crushing and dislodging the rock between the kerfs. The centermost disc cutter of the center cutter assembly includes a radially inwardly facing breaker surface which crushes and dislodges the material within the kerf cut by said centermost disc cutter. The disc cutter wheels have parallel radial side faces. The wheels are mounted for rotation by plain bearings or bushings which carry the radial loads. Washer-like plain radial bearings are provided outwardly of each of the side faces to carry the thrust loads. A seal ring presenting a radial face of hard material against the radial side face of the cutter wheel surrounds each thrust bearing. A ring of elastomeric material serves to cushion the seal member and urge it positively into contact with the side face of the cutter wheel.

    摘要翻译： 固定轴安装在刀架上以延伸越过刀盘的旋转轴线。 多个独立自由旋转的圆盘切割轮以与切割头轴线不同的径向间隔安装在所述轴上。 刀架带有与中心切割器组件径向向外间隔开的附加盘式切割器。 所有的盘式切割机都包括圆周切削刃，其在隧道面处的岩石中切割同心的切口，并且在切削刃的相对侧上倾斜的破碎机表面，用于在切口之间破碎和移除岩石。 中心切割器组件的最中心的圆盘切割器包括径向向内的破碎机表面，其破碎并移除由所述中心切割器切割的切口内的材料。

    Free breathing lubrication system for sealed bearing rock bits
    92.
    发明授权
    Free breathing lubrication system for sealed bearing rock bits 失效
    用于密封轴承座的自由呼吸润滑系统

    公开(公告)号：US3719241A

    公开(公告)日：1973-03-06

    申请号：US3719241D

    申请日：1971-11-24

    申请人： DRESSER IND

    发明人： BELL W

    IPC分类号： E21B10/22 ,  E21B10/24 ,  F16C33/66 ,  E21B9/08 ,  E21B9/35 ,  E21C13/00

    CPC分类号： F16C33/6607 ,  E21B10/24 ,  F16C33/6622 ,  F16C33/6651 ,  F16C2352/00

    摘要： THREE INDIVIDUAL LUBRICANT RESERVOIRS ARE POSITIONED IN A THREE CONE ROTARY ROCK BIT WITH ONE OF THE RESERVOIRS IN EACH OF THE THREE ARMS OF THE BIT FOR SUPPLYING LUBRICANT TO THE BIT BEARING SYSTEMS LOCATED BETWEEN EACH OF THE THREE INDIVIDUAL CONE CUTTERS AND THE BEARING SHAFTS UPON WHICH THE ROTATE. A SEAL IS POSITIONED BETWEEN EACH OF THE CONE CUTTERS AND ITS BEARING SHAFT TO PREVENT THE LUBRICANT FROM ESCAPING INTO THE BOREHOLE AND TO PREVENT HOREHOLE FLUIDS AND DEBRIS FROM ENTERING THE BEARING AREA. A PASSAGEWAY EXTENDS FROM EACH OF THE LUBRICANT RESERVOIRS TO THE EXTERIOR OF THE BIT AND A FREE BREATHING POROUS FILTER PLUG IS POSITIONED IN EACH OF THE PASSAGEWAYS THEREBY EQUALIZING THE INTERNAL PRESSURE OF LUBRICANT IN THE LUBRICANT RESERVOIR AND THE HYDROSTATIC PRESSURE OF DRILLING FLUID IN THE WELL BORE.

    摘要翻译： 1382516 Boring earth＆c DRESSER INDUSTRIES INC 19 Oct 1972 [1971年11月24日] 46657/72标题E1F在润滑剂储存器30的滚子润滑系统中， 如图2所示，与轴承19至22连通，并且通过过滤器32与钻头的外部连接，过滤器允许钻头中的润滑剂与环境流体之间的压力平衡。 储存器可以替代地设置有柔性隔膜78， 如图4所示，隔膜的一侧经由通道79与环境连通，另一侧通过过滤器84封闭与环境连通的润滑剂。在另一替代实施例中，图5（未示出） 润滑剂储存器（90）经由位于柔性隔膜（86）中的过滤器（92）与环境连通。 提供了密封件69，其防止流体在内部和外侧两者之间流过切割器14和钻头体13，但是也可以设置图3（未示出）的密封件（44），其防止流体向内流动。 过滤器由烧结金属，多孔陶瓷材料或金属屑或颗粒构成。 数字见下页

    Method of and means for lubricating the lower bearings in a drilling machine
    93.
    发明授权
    Method of and means for lubricating the lower bearings in a drilling machine 失效
    用于在钻孔机中润滑下轴承的方法和装置

    公开(公告)号：US3666329A

    公开(公告)日：1972-05-30

    申请号：US3666329D

    申请日：1971-01-11

    申请人： ALSTHOM CGEE

    发明人： BELL JEAN

    IPC分类号： E21B4/02 ,  E21B9/08

    CPC分类号： E21B4/02

    摘要： LOCATED BETWEEN THE LOWER DRILL BEARING AND A LUBRICANT FLOW CONTROL JOINT IN THE LUBRICANT FLOW PASSAGE TO SUCH BEARING IS A CALIBRATED VALVE CONSTRUCTED TO PERMIT FLOW OF LUBRICANT DIRECTLY FROM THE BORE OF THE TURBINE SHAFT TO SUCH FLOW PASSAGE WHEN THE LUBRICANT PRESSURE AT THE DRILLING BIT IS INSUFFICIENT TO EFFECT ADQUATE LUBRICATION OF THE LOWER BEARING.

    Borehole reamer-stabilizer with improved fluid circulation
    94.
    发明授权
    Borehole reamer-stabilizer with improved fluid circulation 失效
    具有改进的流体循环的井眼反应器稳定器

    公开(公告)号：US3659663A

    公开(公告)日：1972-05-02

    申请号：US3659663D

    申请日：1970-12-28

    申请人： DRESSER IND

    发明人： DYSART THEODORE R

    IPC分类号： E21B10/23 ,  E21B10/24 ,  E21B10/30 ,  E21B9/08 ,  E21B9/24 ,  E21C23/00

    CPC分类号： E21B10/23 ,  E21B10/30

    摘要： A plurality of passages transmit fluid end to end in the reamerstabilizer body. Individual cutters are mounted on hollow shafts affixed to the reamer-stabilizer body. A circular passage transmits fluid to the center of the hollow shafts. Holes connect the outside of each shaft with the hollow central portion. Spiral grooves are located longitudinally on the inside diameter of the cutter.

    摘要翻译： 多个通道在扩孔器稳定器主体中将流体端到端传送。 单个切割器安装在固定在铰刀稳定器主体上的中空轴上。 圆形通道将流体传送到中空轴的中心。 孔将每个轴的外部与中空中心部分连接。 螺旋槽纵向位于切割器的内径上。