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公开(公告)号：US3946817A
公开(公告)日：1976-03-30
申请号：US535871
申请日：1974-12-23
申请人： Richard B. Prince
发明人： Richard B. Prince
摘要： Disclosed herein is a cutter for a rock bit that has an interior bearing race area carburized by pack carburization methods to achieve a high carbon content for extreme hardness. The exterior of the cutter is carburized also, but to a lesser degree, to avoid brittleness in the tooth area. The differential carburizing is accomplished by gas carburizing the exterior while simultaneously pack carburizing the interior. Conventional heat treatment for hardening follows. This results in a cutter having a bearing area much harder than the exterior, giving a long bearing life and reducing tooth breakage.
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公开(公告)号：US3865202A
公开(公告)日：1975-02-11
申请号：US36899973
申请日：1973-06-11
摘要： A rock is excavated by the steps of forming at least one groove in the rock by a water jet, forcing a first single-bevel cutter into the rock while the cutter is moved along a line parallel to and spaced apart from the groove so that cracks formed by the cutter and reaching the groove are thereby formed mostly by tensile failure of the rock, further forcing the first cutter through the rock until a succeeding second single-bevel cutter moving along a path further from the groove than the first cutter is forced against the rock so that cracks starting from the second cutter and reaching the groove are thereby formed, and continuing this procedure similarly until all of several sequentially staggered and succeeding cutters act on the rock. The apparatus has an excavation head on which nozzles and cutters are so arranged that the above described method can be put into practice thereby.
摘要翻译： 通过以下步骤挖掘岩石：通过水射流在岩石中形成至少一个凹槽的步骤，迫使第一单斜切刀进入岩石，同时切割器沿着平行于并与凹槽间隔的线移动，使得裂纹 由切割器形成并到达凹槽由此主要由岩石的拉伸破坏形成，进一步迫使第一切割器穿过岩石，直到沿着比第一切割器更远离凹槽的路径移动的后续第二单斜切刀具被迫抵抗 从而形成从第二切割器开始到达凹槽的裂纹，并且类似地继续该过程，直到所有几个顺序交错和后续的切割器作用在岩石上。 该设备具有挖掘头，喷嘴和切割器布置成使得上述方法能够被实施。
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公开(公告)号：US3739864A
公开(公告)日：1973-06-19
申请号：US3739864D
申请日：1971-08-12
申请人： DRESSER IND
CPC分类号： F16C33/6607 , E21B10/24 , F16C33/6622 , F16C2352/00
摘要： A lubricant reservoir is positioned in each of the three arms of a three cone rotary rock bit to provide lubricant to the bearings located between the cone cutters and the bearing shafts upon which they rotate. A seal is positioned between the cone cutters and the bearing shafts to retain lubricant in the bearing area and to prevent borehole fluids and debris from entering the bearing area. A flexible diaphragm positioned in the lubricant reservoir divides the reservoir into a lubricant portion and a pressure equalizing portion. A vent passage extends from the pressure equalizing portion of the lubricant reservoir to an area on the exterior surface of the bit wherein the borehole fluid pressure on the bit is substantially the same as the borehole fluid pressure on the seal.
摘要翻译： 润滑剂储存器定位在三锥形旋转岩石钻头的三个臂中的每一个中，以向位于锥形切割器和它们旋转的轴承轴之间的轴承提供润滑剂。 密封件位于锥形切割器和轴承轴之间，以将润滑剂保持在轴承区域中并防止钻孔流体和碎屑进入轴承区域。 定位在润滑剂储存器中的柔性隔膜将储存器分成润滑剂部分和均压部分。 排气通道从润滑剂储存器的均压部分延伸到钻头的外表面上的区域，其中钻头上的钻孔流体压力与密封件上的钻孔流体压力基本相同。
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4.发明授权
公开(公告)号：US4223749A
公开(公告)日：1980-09-23
申请号：US20807
申请日：1979-03-15
摘要： A drilling bit for drilling earthen material such as an oil well rotary cone drilling bit, which includes means for preventing foreign particles such as sand, rock cuttings, etc., from reaching the rotational bearings of the bit cones. This end result is principally achieved by means of a centrifugal slinger disc or wall which is positioned in external concentricity with the drill bit cone bearing, and operates to drive granular particles away from the bearings, thereby preventing such particles from reaching these bearing surfaces. The granular particles are driven by the slinger action through a series of apertures forming a channel running out to a peripheral region of the bit cones. A channel continuation is also provided for lubricating fluid, which may comprise ambient water or oil placed in chambers surrounding the bearings, this channel providing access for such lubricating fluid inwardly to the bit cone bearings. A disc-shaped wall member is provided opposite the slinger disc to minimize the escape of oil from the chambers when the bit is stationary. A ring member carrying a plurality of curved vanes, this ring member being externally concentric with the supporting shaft of the cone and located near the outer periphery of the bit cone may also be employed to prevent larger foreign particles, such as cuttings, from entering into the region of said slinger.
摘要翻译： 用于钻井土的钻头，例如油井旋转锥形钻头，其包括用于防止诸如砂，岩石切割等的异物的装置到达钻头锥体的旋转轴承。 这个最终结果主要是通过与钻头锥形轴承处于外部同心度的离心抛油盘或壁来实现的，并且操作以将颗粒颗粒驱离轴承，从而防止这些颗粒到达这些轴承表面。 颗粒状颗粒通过一系列孔径由抛油环作用驱动，形成通向尾锥周边区域的通道。 还提供了用于润滑流体的通道延续，其可以包括放置在围绕轴承的腔室中的环境水或油，该通道提供这种润滑流体向内进入钻头锥形轴承的通路。 一个圆盘形的壁件设置在抛油环盘的对面，以便当该钻头处于静止状态时使油从腔室逸出最小化。 携带多个弯曲叶片的环形构件也可用于防止较大的异物（例如切屑）进入到该圆形构件中，该环构件与锥体的支撑轴在外部同心并位于钻头锥体的外周附近 所述抛油环的区域。
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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
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
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公开(公告)号：US3476195A
公开(公告)日：1969-11-04
申请号：US3476195D
申请日：1968-11-15
申请人： HUGHES TOOL CO
发明人： GALLE EDWARD M
CPC分类号： E21B10/24 , F16C33/726 , F16C2352/00
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公开(公告)号：US4183416A
公开(公告)日：1980-01-15
申请号：US934930
申请日：1978-08-18
申请人： D. F. Walters
发明人： D. F. Walters
CPC分类号： E21B10/246
摘要： Lubricant is circulated from a lubricant reservoir to the bearings of a rotary rock bit and back to the lubricant reservoir by a lubricant circulation system that is operated by rotation of the cone cutter upon the bearing pin of the bit. A seal is positioned between the rolling cone cutter and the arm of the bit to maintain lubricant in the bearing area and to prevent fluid and materials in the borehole from entering the bearing area. A lubricant reservoir is located in the bit body. A first passage connects the lubricant reservoir with the bearing area to channel lubricant from the lubricant reservoir to the bearing area. A second passage extends from the bearing area to the lubricant reservoir to allow lubricant to be channeled back to the lubricant reservoir. A spiral screw connected to the cone cutter extends into a passage in the bearing pin and provides a pumping action as the cone cutter rotates to circulate lubricant from the lubricant reservoir through said first passage to the bearing area and from the bearing area through said second passage back to said lubricant reservoir.
摘要翻译： 润滑剂通过润滑剂循环系统从润滑剂储存器循环到旋转岩石钻头的轴承并返回到润滑剂储存器，润滑剂循环系统通过锥形切割器在钻头的轴承销上旋转来操作。 密封件位于滚动锥形切割器和钻头的臂之间，以将润滑剂保持在轴承区域中并且防止钻孔中的流体和材料进入轴承区域。 润滑剂储存器位于钻头体内。 第一通道将润滑剂储存器连接到轴承区域，以将润滑剂从润滑剂储存器引导到轴承区域。 第二通道从轴承区域延伸到润滑剂储存器，以允许润滑剂被引导回到润滑剂储存器。 连接到锥形切割器的螺旋螺钉延伸到轴承销中的通道中，并且当锥形切割器旋转时提供泵送动作，以使来自润滑剂储存器的润滑剂通过所述第一通道循环到轴承区域并且从轴承区域通过所述第二通道 回到所述润滑剂储存器。
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公开(公告)号：US3952815A
公开(公告)日：1976-04-27
申请号：US561576
申请日：1975-03-24
IPC分类号： E21B10/10 , E21B10/16 , E21B10/18 , E21B10/22 , E21B10/24 , E21B10/25 , E21B10/52 , E21D9/10 , E21C13/01 , E21B9/35
摘要： Cone shell erosion between inserts is substantially reduced by positioning small, flat-topped compacts in the vulnerable cutter shell areas. At least one row of substantially outwardly projecting formation contacting inserts are located on the rock cutter. A row of substantially flush compacts are embedded in the cutter shell alternately positioned between the outwardly projecting formation contacting inserts.
摘要翻译： 通过在易损的切割器壳体区域中定位小的平顶压块，大大减少了插入件之间的锥壳侵蚀。 至少一排基本上向外突出的地层接触插入件位于岩石切割机上。 一排基本上平齐的紧凑件嵌入切割器壳体中，交替地位于向外突出的地层接触插入件之间。
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公开(公告)号：US3921735A
公开(公告)日：1975-11-25
申请号：US55376375
申请日：1975-02-27
申请人： DRESSER IND
CPC分类号： E21B10/25 , F16C33/72 , F16C33/78 , F16C2352/00 , F16J15/40
摘要： Drill cuttings in the borehole are prevented from entering the area between the bearing pin and the cone cutter of a rotary rock bit by a cone mouth air screen. The cone cutter includes an internal cavity and a cone mouth positioned over the bearing pin. Bearings are located within the internal cavity between the bearing pin and the cone cutter. A passage extends through the bit body and the bearing pin for conducting a gaseous drilling fluid to the internal cavity for cooling the bearings. A screen means is positioned in the cone mouth between the cone cutter and the bearing pin for preventing solids in the borehole from entering the internal cavity and for allowing the circulating gaseous drilling fluid to pass from the internal cavity into the borehole.
摘要翻译： 钻孔中的钻屑被锥形空气屏幕阻止进入旋转钻头的轴承销和锥形切割器之间的区域。 锥形切割器包括位于轴承销上的内腔和锥形口。 轴承位于轴承销和锥形切割机之间的内部空腔内。 通道延伸穿过钻头体和轴承销，用于将气态钻井流体引导到内部空腔以冷却轴承。 屏幕装置位于锥形切割器和轴承销之间的锥形口中，用于防止钻孔中的固体进入内部空腔并允许循环的气态钻井液从内部空腔进入井眼。
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公开(公告)号：US3463256A
公开(公告)日：1969-08-26
申请号：US3463256D
申请日：1967-11-07
申请人： CLYDE A WHITE
发明人： WHITE CLYDE A
IPC分类号： E21B10/62 , E21B10/627 , E21C13/02 , E21B9/35
CPC分类号： E21B10/627
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