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公开(公告)号：US4330158A
公开(公告)日：1982-05-18
申请号：US195469
申请日：1980-10-09
申请人： D. F. Walters
发明人： D. F. Walters
CPC分类号： E21B10/22 , E21B10/24 , F16C33/103 , F16C2352/00
摘要： A rolling cone cutter earth boring bit is provided having a pair of facing thrust bearing surfaces, one such surface on the rolling cone and the other surface on the journal pin. The latter surface defines an annular groove which has separate arcuate segments thereof filled with a hardfacing material and machined to provide a complimentary engaging surface with the cone thrust bearing surface. The spaces in the groove between the hardfacing segments define pockets providing lubricant reservoirs and debris traps for the immediately adjacent thrust bearing surfaces.
摘要翻译： 本发明提供一种滚动圆锥切割机钻头，其具有一对相对的止推轴承表面，一个这样的表面在滚动锥体上，另一个表面在轴颈销上。 后者表面限定了环形槽，其具有填充有表面硬化材料并且被加工以提供与锥形止推轴承表面的互补接合表面的分开的弓形段。 表面硬化部分之间的凹槽中的空间限定了为紧邻的止推轴承表面提供润滑剂储存器和碎屑收集器的口袋。
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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：US4181185A
公开(公告)日：1980-01-01
申请号：US939312
申请日：1978-09-05
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 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 groove system in the thrust flange of the cone cutter operates as a viscous or ram pump when rotating against the thrust flange of the bearing pin thereby providing a pumping action 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。 锥形切割器的推力凸缘中的凹槽系统在与轴承销的推力凸缘旋转时作为粘性或柱塞泵进行操作，从而提供泵送作用，以将润滑剂从润滑剂储存器通过所述第一通道循环到轴承区域 通过所述第二通道的轴承区域返回到所述润滑剂储存器。
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公开(公告)号：US4176724A
公开(公告)日：1979-12-04
申请号：US851475
申请日：1977-11-14
申请人： Edward Vezirian
发明人： Edward Vezirian
CPC分类号： E21B10/22 , E21B10/20 , F16C17/26 , F16C2352/00
摘要： A rotary rock bit is described having a plurality of legs extending downwardly from the main bit body. Each leg further includes an inwardly extending journal pin for rotatively supporting a cone-type cutter. An annular thrust member is provided for axially retaining the cutter onto the journal pin. In one embodiment the thrust member is adapted to extend into an annular groove formed in the journal pin with the other radial surface thereof engaging an inner annular surface of the cutter. The radial surface of the thrust member is then welded to cutter by an electron beam process. An access aperture is provided in the journal pin and leg to enable the electron beam to pass therethrough and strike the thrust member and cutter. During this operation, the cutter is rotated along with the thrust member across the access aperture to create a 360.degree. weld therebetween. In another embodiment, an annular groove is formed in the cutter cavity for receiving the thrust member. An access hole is formed in the cutter to enable the electron beam to pass therethrough and strike the engaging surfaces of the thrust member and journal pin. Similarly, relative rotational movement of the components enables a 360.degree. weld to be created.
摘要翻译： 描述了具有从主钻头体向下延伸的多个腿的旋转岩石钻头。 每个腿还包括一个向内延伸的轴颈销，用于可旋转地支撑锥形切割器。 提供一个环形推力构件用于将切割器轴向保持在轴颈销上。 在一个实施例中，推力构件适于延伸到形成在轴颈销中的环形槽中，其另一个径向表面接合切割器的内环形表面。 然后通过电子束过程将推力构件的径向表面焊接到切割器。 在轴颈销和腿部设置一个进入孔，以使电子束能够通过并撞击推力构件和切割器。 在该操作期间，切割器与推动构件一起沿着进入孔旋转，以在它们之间产生360°的焊接。 在另一个实施例中，环形凹槽形成在切割器腔中，用于接收推力构件。 在切割器中形成一个进入孔，以使电子束能够穿过其中并撞击推力构件和轴颈销的接合表面。 类似地，组件的相对旋转运动使得能够产生360°的焊接。
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公开(公告)号：US4136748A
公开(公告)日：1979-01-30
申请号：US848801
申请日：1977-11-07
申请人： Ronald P. Dickerhoff
发明人： Ronald P. Dickerhoff
摘要： A roller-type rock bit has a body which fits into a drill hole and is provided with inwardly directed spindles about which cone-shaped cutters revolve. Between each spindle and its cutter is a tapered roller bearing, a flat thrust bearing, and a sleeve-type radial bearing arranged in that order from the large end of the cutter. The raceways of the tapered roller bearing converge toward the small end of the cutter, and that bearing is unitized by a thrust rib located on the spindle opposite the small ends of the rollers and a rib ring which fits into the cutter opposite the large diameter ends of the rollers. Thus, a major portion of the radial load encountered in drilling is taken by the tapered roller bearing, as well as a significant portion of the thrust load, with both of those loads being transferred between the raceways generally transversely through the tapered rollers. Any thrust loading in the opposite direction is transferred between the rib ring and the thrust rib generally axially through the rollers. The rib ring further closes the end of the cutter and, together with a stream of air that flushes the interior of the cutter, prevents rock cuttings from entering the cutter and damaging the bearings.
摘要翻译： 辊型岩石钻头具有装配到钻孔中的主体，并且设置有向内定向的心轴，锥形切割器围绕其旋转。 在每个主轴和其切割器之间是从切割器的大端按顺序布置的圆锥滚子轴承，平推力轴承和套筒式径向轴承。 圆锥滚子轴承的滚道朝向切割器的小端收敛，并且该轴承由位于主轴上的与滚子的小端相对的推力肋组合在一起，以及与大直径端相对配合的切削刃 的辊子。 因此，钻孔中遇到的径向载荷的主要部分由锥形滚子轴承以及推力载荷的很大一部分所取代，其中两个载荷通过横向穿过锥形滚子在滚道之间传递。 沿相反方向的任何推力载荷通常在轴向通过辊子之间传递到肋环和推力肋之间。 肋环进一步关闭切割器的端部，并且与冲洗切割器内部的空气流一起防止岩石切屑进入切割器并损坏轴承。
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公开(公告)号：US4127043A
公开(公告)日：1978-11-28
申请号：US807450
申请日：1977-06-17
申请人： Robert F. Evans
发明人： Robert F. Evans
CPC分类号： E21B10/20
摘要： A rock bit and manufacturing method wherein journal-bearing pins which support rotatable cutters on the bit body are separately machined and heat treated, and then mounted on the bit body by electron-beam welding or a related process of energy-beam bonding.
摘要翻译： 一种岩石钻头及其制造方法，其中在钻头体上支撑可旋转刀具的轴颈轴承销被单独加工和热处理，然后通过电子束焊接或能量束结合的相关过程安装在钻头体上。
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公开(公告)号：US4096917A
公开(公告)日：1978-06-27
申请号：US766589
申请日：1977-02-08
申请人： Jesse W. Harris
发明人： Jesse W. Harris
IPC分类号： E21B10/08 , E21B10/24 , E21B10/28 , E21B10/38 , E21B10/52 , E21B10/56 , E21B9/08 , E21C13/01 , E21C13/06
CPC分类号： E21B10/246 , E21B10/083 , E21B10/28 , E21B10/38 , E21B10/52 , E21B10/56
摘要： A partially solid head bit having a flow passage therethrough located at approximately the center of the bit is shown. The bit is designed for use in conjunction with a hammer action drilling apparatus. The flow passage extends through a shank of the bit to the bottom thereof. Surrounding the shank is a substantially hemispherical spiraled burr having an opening therethrough. The burr pushes against a shoulder of the shank during drilling. The mating surfaces of the shank and burr are lubricated by a suitable oil reservoir. On spirals of the burr and on the lower end of the shank are mounted hardened inserts for impacting against and breaking up the formation through which the bit may drill. The bottom of the shank may be even with, extend through, or be recessed with respect to the lower edge of the burr. The shank is angled a few degrees off the centerline of the drilling string to cause a wobbling action upon rotating the drill bit.
摘要翻译： 示出了位于钻头中心附近的具有流动通道的部分实心头部钻头。 该钻头设计用于与锤击钻孔装置结合使用。 流动通道延伸穿过钻头的柄部到其底部。 围绕柄部的是具有穿过其的开口的大致半球状的螺旋毛刺。 在钻孔期间，毛刺推动柄的肩膀。 柄和毛刺的配合表面由合适的储油器润滑。 在螺纹螺纹和柄的下端上安装有硬化刀片，用于冲击和破坏钻头可钻的地层。 柄部的底部可以相对于毛刺的下边缘是均匀的，延伸穿过的或者凹进的。 柄与钻柱的中心线倾斜几度，以在钻头旋转时产生摆动作用。
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8.发明授权
公开(公告)号：US4056153A
公开(公告)日：1977-11-01
申请号：US705963
申请日：1976-07-16
申请人： Raul A. Miglierini
发明人： Raul A. Miglierini
摘要： The body of the bit includes an axis of rotation, an upper end connectable with the drill string for rotating the bit and three downwardly projecting arms. Each of the arms includes an inwardly and downwardly inclined shaft defining an axis of cutter rotation with all of the axes intersecting at substantially a common point. First, second and third conical cutter members are journaled on a respective one of said shafts. Each cutter member includes a nose and a base with the base being oriented generally toward the wall of the well bore. A plurality of outwardly projecting, circumferentially-spaced inserts are located in annular rows in each cutter member for engaging the bottom of the well bore. At least two of the cutter members include intermediate rows of inserts disposed between the nose and base of the cutter member at approximately the same distance from the bit axis of rotation so that the inserts engage the bottom of the well bore at approximately the same distance from the bit body axis of rotation, thereby cutting overlapping tracks.
摘要翻译： 钻头的主体包括旋转轴，可与钻柱连接的上端，用于旋转钻头和三个向下突出的臂。 每个臂包括向内和向下倾斜的轴，其限定切割器旋转的轴线，其中所有轴线基本上在公共点处相交。 首先，第二和第三锥形切割器部件轴颈在相应的一个所述轴上。 每个切割器构件包括一个鼻子和一个底座，底座的大致朝向井眼的壁。 多个向外突出的周向间隔的插入件位于每个切割器构件中的环形行中，用于接合井眼的底部。 至少两个切割构件包括中间排的插入件，其设置在距离钻头旋转轴线大致相同距离处的切割器构件的鼻部和底部之间，使得插入件以大致相同的距离与孔的底部接合 钻头轴旋转，从而切割重叠的轨道。
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公开(公告)号：US4043411A
公开(公告)日：1977-08-23
申请号：US741167
申请日：1976-11-12
申请人： Carl Laurent Lichte
发明人： Carl Laurent Lichte
CPC分类号： E21B10/20 , B23K15/0053 , E21B10/62 , B23K2201/002
摘要： A rotary rock bit is constructed from at least one rock bit arm and a separate bearing pin. The rock bit arm includes a curved shirttail surface, a plane cutter receiving surface, and a mounting passage extending through said rock bit arm from said cutter receiving surface to said shirttail surface. The bearing pin includes a bearing section and a mounting section. The mounting section is positioned in the mounting passage of the rock bit arm thereby forming a seam between the mounting section of the bearing pin and the mounting passage in the rock bit arm. The mounting section of the bearing pin is fused to the rock bit arm using a beam of energy. The beam of energy is directed from an energy source located on the plane cutter receiving surface side of the rock bit arm. The plane cutter receiving surface is maintained substantially perpendicular to the beam of energy and the beam source is maintained substantially at a fixed distance from the cutter receiving surface during the fusing operation.
摘要翻译： 旋转岩石钻头由至少一个岩石钻头臂和单独的轴承销构成。 岩石钻头臂包括弯曲的衬衫表面，平面切割器接收表面以及从所述切割器接收表面延伸穿过所述钻头臂到所述衬衫尾部表面的安装通道。 轴承销包括轴承部分和安装部分。 安装部分位于岩石钻头臂的安装通道中，从而在轴承销的安装部分和岩石钻头臂中的安装通道之间形成接缝。 轴承销的安装部分使用能量束熔接到岩石钻头臂。 能量束从位于岩石钻头臂的平面切割器接收表面侧上的能量源引导。 平面切割器接收表面保持基本上垂直于能量束，并且在熔化操作期间，束源基本上保持与切割器接收表面的固定距离。
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公开(公告)号：US4019593A
公开(公告)日：1977-04-26
申请号：US654148
申请日：1976-01-30
申请人： Paul George Craig
发明人： Paul George Craig
CPC分类号： E21B10/18 , E21B10/20 , Y10T403/60
摘要： A nozzle is releasably locked in a drilling fluid passage of a rotary rock bit by a retainer member which bridges between matching grooves in the periphery of the nozzle and in the wall of the passage respectively. The retainer member is introduced to the matching grooves through a first passageway that extends from the surface of the bit to the matching grooves. The grooves lie in a common plane. A second passageway extends at an angle to the common plane from the surface of the bit to the matching grooves. A drive-out tool is inserted through the second passageway to remove the retainer member.
摘要翻译： 喷嘴通过保持构件可释放地锁定在旋转岩石钻头的钻井液通道中，该保持构件分别在喷嘴的周边和通道的壁中的匹配凹槽之间桥接。 保持构件通过从钻头的表面延伸到匹配凹槽的第一通道被引入到匹配凹槽中。 凹槽位于公共平面中。 第二通道从与钻头的表面到匹配槽的公共平面成一角度延伸。 驱动工具插入通过第二通道以移除保持构件。
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