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1. 发明申请

WO1992002693A1 REPLACEABLE DIGGING TOOTH WITH CONICAL CUTTING INSERTS 审中-公开
标题翻译：可更换的带切割刀片的切割牙
公开(公告)号：WO1992002693A1
公开(公告)日：1992-02-20
申请号：PCT/US1991002240
申请日：1991-04-02
申请人： KENNAMETAL INC. , REEDRILL, INC.
发明人： KENNAMETAL INC. , REEDRILL, INC. , STIFFLER, Stephen, P. , BEACH, Wayne, H. , FROST, Robert, L.
IPC分类号： E02F09/28
CPC分类号： E02F9/285 , E02F9/2858
摘要： A digging tooth (10) including a body portion (12) and a plurality of hard wear resistant conical inserts (14). The body portion includes a generally planar distal portion (16), a medial portion (18), and a bifurcated proximal portion (20) having at least two prongs (22, 24) separated from each other to form a slot (28). The conical inserts are secured to and spaced along said distal portion and have a generally cylindrical body portion (38) and a top portion (40) which tapers to a point to form a tip (42), wherein the ratio of the diameter of the cylindrical body portion to the spacing distance between the tips of the conical inserts is between 0.50 and 0.80 and, preferably, 0.72.

2. 发明申请

WO1995031629A1 REVERSE PERCUSSION DEVICE 审中-公开
标题翻译：反向推移装置
公开(公告)号：WO1995031629A1
公开(公告)日：1995-11-23
申请号：PCT/US1995006460
申请日：1995-05-15
申请人： REEDRILL, INC.
发明人： REEDRILL, INC. , CAMPBELL, Paul
IPC分类号： E21B04/14
CPC分类号： B25D9/145 , B25D2250/171 , E21B1/02 , E21B31/107
摘要： A reverse percussion device (30) for use with hydraulic percussive drills is provided. The reverse percussion device (30) includes a cycling piston (34), valve (36) and anvil (38). The piston (34) and valve (36) move in opposing directions between low and high pressure passages automatically until a lodged drill bit (18) is freed, thereby facilitating removal of the drill bit (18) from the drilled hole and eliminating alternate loosening and tightening of drill string threads (14). The reverse percussion device (30) preferably includes an automatic disabling feature which causes the reverse percussion operation to cease when the bit is free to retract normally.
摘要翻译：提供了一种用于液压冲击钻的反向敲击装置（30）。反向敲击装置（30）包括循环活塞（34），阀（36）和砧座（38）。活塞（34）和阀（36）自动地在低压通道和高压通道之间沿相反的方向移动，直到一个倾倒的钻头（18）被释放，从而便于将钻头（18）从钻孔中移除并消除了替代的松动并拧紧钻柱螺纹（14）。反向冲击装置（30）优选地包括自动禁用特征，当该位自由地正常缩回时，使得反向敲击操作停止。

3. 发明申请

WO1995009294A1 DRILL AUTOMATION CONTROL SYSTEM 审中-公开
标题翻译：钻井自动化控制系统
公开(公告)号：WO1995009294A1
公开(公告)日：1995-04-06
申请号：PCT/US1994010938
申请日：1994-09-27
申请人： REEDRILL, INC.
发明人： REEDRILL, INC. , EDLUND, Hans, E. , HAINES, Marvin, L.
IPC分类号： E21B44/00
CPC分类号： E21B44/00 , E21B7/025
摘要： A rotary blasthole drilling apparatus comprises a rotary blasthole drill (2, 4, 6) and a drill automation control system. The apparatus includes a pull-down motor (42) and a drill motor (44). The pull-down motor (42) is driven by a pump (72) to provide a pull-down force to a drill string (2) and drill bit (4). The drill automation control system includes a user interface (62) through which an operator sets a rotary torque set point that determines an amount of torque applied to the drill bit (4) by the drill motor (44). The control system further includes a detector (70) for detecting pressure in the pump (72) during a drilling operation, and a processor (79) which is operative under the control of a program (80) stored therein and responsive to the rotary torque set point (68) and signals from the pull-down pressure sensor (70) for generating an error signal.
摘要翻译：一种旋转炮孔钻探装置，包括旋转炮孔钻（2,4,6）和钻自动化控制系统。该装置包括下拉电动机（42）和钻机电动机（44）。下拉马达（42）由泵（72）驱动以向钻柱（2）和钻头（4）提供下拉力。钻孔自动化控制系统包括用户界面（62），操作者通过该界面（62）设置旋转扭矩设定点，该旋转扭矩设定点确定由钻机马达（44）施加到钻头（4）的扭矩的量。控制系统还包括用于在钻井操作期间检测泵（72）中的压力的检测器（70）和在存储在其中的程序（80）的控制下操作的处理器（79），并响应于旋转扭矩设定点（68）和来自下拉压力传感器（70）的信号，用于产生误差信号。

4. 发明申请

WO1995002110A2 IMPACT HAMMER 审中-公开
公开(公告)号：WO1995002110A2
公开(公告)日：1995-01-19
申请号：PCT/US1994007566
申请日：1994-07-01
申请人： REEDRILL, INC.
发明人： REEDRILL, INC. , EDLUND, Hans, E.
IPC分类号： E21B01/02
CPC分类号： B25D17/06 , B25D9/14
摘要： In an impact drilling apparatus, an impact hammer is provided that includes a body portion and a piston head on the body portion. The piston head has a larger outer periphery than the body portion. The body portion and the piston head have substantially the same cross-sectional area at all points along a longitudinal axis of the hammer. The piston head is disposed at one end of the body portion and is funnel-shaped.
摘要翻译：在冲击钻设备中，提供了一种冲击锤，其包括主体部分和主体部分上的活塞头部。活塞头具有比主体部分更大的外周。主体部分和活塞头沿着锤的纵向轴线的所有点具有基本相同的横截面面积。活塞头设置在主体部分的一端并且是漏斗形的。

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