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公开(公告)号：US5282512A
公开(公告)日：1994-02-01
申请号：US896308
申请日：1992-06-10
申请人： Alain Besson , Patrick Toutain
发明人： Alain Besson , Patrick Toutain
IPC分类号： E21B10/16 , E21B10/52 , E21B10/56 , E21B10/567
CPC分类号： E21B10/5676 , E21B10/16 , E21B10/52
摘要： A drilling tool with rotating conical rollers, such as a bicone, a tricone, etc. wherein each roller is fitted with several circular rows of teeth 22 made of tungsten carbide or the like. Each tooth has at its end, successively in the direction where it rolls on the rock, a rear or impact zone 24, a central zone 28 with a rounded shape, and a forward zone 30 which is last to come into contact with the rock. The teeth are fitted with diamond-charged elements 32, 34 on the forward zone and optionally on the central zone, but not on the rear zone.
摘要翻译： 具有旋转锥形辊的钻具，例如二甲酚，三齿等，其中每个滚轮装配有由碳化钨等制成的多个圆形的齿排22。 每个齿的端部依次在其在岩石上滚动的方向上，后部或冲击区域24，具有圆形形状的中心区域28和最后与岩石接触的前部区域30。 齿在正向区域上并且可选地在中心区域上但不在后区域上配有带金刚石的元件32,34。
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公开(公告)号：US4936398A
公开(公告)日：1990-06-26
申请号：US378560
申请日：1989-07-07
申请人： David H. Auty , Peter G. Wheeldon
发明人： David H. Auty , Peter G. Wheeldon
摘要： A drill bit for earth boring purposes includes a drill bit body which is rotatable about a drilling axis, a single cutting member mounted rotatably on the body and a counter-reaction member also mounted on the body. The counter-reaction member extends partially downwardly from the body and includes first and second outwardly exposed surfaces. The first surface has a greater surface area than the second surface and is at least partially formed with a circumferentially disposed curvature and a longitudinally disposed curvature with respect to the drilling axis so that it can closely conform to and contact the curvature of the bottom of the hole formed by the drill bit. The first surface of the counter-reaction member acts as a friction pad to counteract the torque effects of rotating the drill bit about the drilling axis and the cutting member engaging in the ground. The second surface is situated substantially circumferentially adjacent to the first surface and is inwardly angularly disposed with respect to the first surface and forms an obtuse angle with the first surface. The second surface has a plurality of teeth mounted on it for smoothing the bottom of the hole formed by the drill bit by removing ridges formed in the bottom of the hole by the teeth of the cutting member as the drill bit rotates.
摘要翻译： 用于大地钻孔的钻头包括可围绕钻孔轴线旋转的钻头体，可旋转地安装在主体上的单个切割构件和还安装在主体上的反作用构件。 反作用构件从主体部分向下延伸并且包括第一和第二向外暴露的表面。 第一表面具有比第二表面更大的表面积，并且至少部分地形成有相对于钻孔轴线的周向设置的曲率和纵向设置的曲率，使得其可以紧密地符合并接触 由钻头形成的孔。 反作用构件的第一表面用作摩擦垫，以抵消使钻头围绕钻孔轴线旋转的扭矩效应和接合在地面中的切割构件。 第二表面基本上周向地邻近第一表面设置，并且相对于第一表面向内成角度地设置，并与第一表面形成钝角。 第二表面具有安装在其上的多个齿，用于通过当钻头旋转时通过切割构件的齿去除形成在孔的底部中的脊，来平滑由钻头形成的孔的底部。
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公开(公告)号：US4832143A
公开(公告)日：1989-05-23
申请号：US149417
申请日：1988-01-29
申请人： Oscar Kaalstad , Neil G. Reid
发明人： Oscar Kaalstad , Neil G. Reid
摘要： A rotary drilling device is disclosed of the type having a body connected to a rotary drive system for rotation about a primary axis in order to bore into the ground to form a cylindrical hole. The device has a rotary cutting member mounted on one side near the bottom of the body for rotation about an inclined axis of rotation which forms an angle with the primary axis of rotation. A counter-reaction member is disposed on the side of the body away from that carrying the cutting member and near its bottom. The counter-reaction member is constructed and positioned so as to be in contact with only the concave bottom of the hole and so that the maximum radial projection from the primary axis of rotation of any part of the counter-reaction member is less than the radius of the hole, with the highest point of the surface of contact between the counter-reaction member situated below a line defined by the intersection between the concave bottom of the hole and its cylindrical side wall. The counter-reaction member has a convex surface in contact with and closely conforming to the concave surface of the bottom of the hole.
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公开(公告)号：US4657093A
公开(公告)日：1987-04-14
申请号：US345468
申请日：1982-02-03
申请人： Percy W. Schumacher
发明人： Percy W. Schumacher
摘要： This invention discloses a rolling cone drilling bit having a plurality of cutters which have inserted therein hard metal cutting elements preferably formed of tungsten carbide alloy; and in which bit the rolling cone cutters are located in such a manner that their rotational axes are greatly offset from the rotational axis of the drill bit. In addition, a fluid jetting system is provided in the invention that directs a pressurized fluid spray across the main cutting inserts and against the formation face so that when the drill bit is used in its most advantageous areas, such as the soft, medium-soft and plastic formations, the jetting system prevents "balling up" of the cutters and greatly increases the drilling efficiency of the bit.
摘要翻译： 本发明公开了一种具有多个切割器的滚动圆锥钻头，其中插入有优选由碳化钨合金形成的硬金属切割元件; 并且滚动锥切割器的哪一个位置使得它们的旋转轴线大大偏离钻头的旋转轴线。 此外，在本发明中提供了一种流体喷射系统，其将加压流体喷射引导穿过主切削刀片并抵靠地层面，使得当钻头在其最有利的区域中使用时，例如柔软的，中软的 和塑料结构，喷射系统防止切割机的“滚珠”，并大大提高钻头的钻井效率。
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公开(公告)号：US4381038A
公开(公告)日：1983-04-26
申请号：US208999
申请日：1980-11-21
申请人： David B. Sugden
发明人： David B. Sugden
摘要： A bit connectible from the lower end of a rotatably powered drill stem for enlarging a preformed pilot hole includes a cutter carrier frame on which are mounted a plurality of roller cutters having peripheral cutting edges which sweep concentric circles upon rotation of the raise drilling bit. The circles swept by the cutters collectively define a generally dome-shaped cutting profile of constantly changing curvature which forms a segment of a spiral curve so that as the cutting profile extends radially outwardly from the drill stem, its curvature progressively decreases. The rotating cutter carrier frame structure drives a flywheel assembly at increased speed through the intermediacy of a step-up drive system composed of two planetary gear drives coupled in tandem. The flywheel assembly is mounted on the step-up drive in such a manner that if a sudden, large difference in acceleration occurs between the flywheel and the cutter carrier structure frame, the flywheel is free to continue to rotate to thereby prevent damage to the components of the step-up drive.
摘要翻译： 从可旋转动力的钻杆的下端可以连接用于扩大预成型导向孔的位置包括：刀架支架，其上安装有多个具有外周切削刃的辊切割器，该切割刀具在升高钻头转动时扫过同心圆。 由刀具扫掠的圆圈共同地限定了形成不断变化的曲率的大致圆顶形的切割轮廓，其形成螺旋曲线的一段，使得当切割轮廓从钻杆径向向外延伸时，其曲率逐渐减小。 旋转的刀架架结构通过由串联耦合的两个行星齿轮传动装置组成的升降驱动系统的中间性，以增加的速度驱动飞轮组件。 飞轮组件以这样的方式安装在升压驱动器上，使得如果在飞轮和刀架结构框架之间出现突然的较大的加速差，则飞轮可以自由地继续旋转，从而防止对部件的损坏 的升压驱动器。
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公开(公告)号：US4343372A
公开(公告)日：1982-08-10
申请号：US161701
申请日：1980-06-23
申请人： Donald L. Kinzer
发明人： Donald L. Kinzer
摘要： An earth boring drill bit has staggered rows of wear resistant inserts that are positioned to provide more inserts in the rows without sacrificing insert supporting metal. The staggered rows include a first or heel row of inserts that is positioned next to the gage surface of the cutter. The second or adjacent row is located farther from the gage surface and staggered with the first row so that the first and second row inserts alternate in contacting the bottom of the borehole. Each insert has a centerline that intersects the cutter axis. The first row inserts intersect the cutter axis at a greater angle than the second row inserts. This positioning results in a more uniform section of metal between the holes of the first and second row inserts, enabling a closer spacing.
摘要翻译： 钻孔钻头具有交错排的耐磨插入件，其被定位成在行中提供更多的插入件而不牺牲插入件支撑金属。 交错的行包括位于切割器的规格表面旁边的第一或后跟插入件。 第二或相邻行位于距离计量表面更远并与第一排交错的位置，使得第一和第二排插入件与接触钻孔底部交替。 每个插入件都有一个与刀具轴线相交的中心线。 第一排插入件与刀具轴线以比第二列插入件更大的角度相交。 这种定位导致在第一和第二行插入件的孔之间更均匀的金属部分，使得能够更加间隔。
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公开(公告)号：US4320808A
公开(公告)日：1982-03-23
申请号：US162463
申请日：1980-06-24
申请人： Wylie P. Garrett
发明人： Wylie P. Garrett
摘要： A rotary drill bit and drill bit cone for drilling bore holes through earth formations. The rotary drill bit includes a generally hollow body portion having a plurality of longitudinally extending shanks which terminate with inwardly directed spindles. A cutting cone is mounted upon each shank spindle and is provided with a plurality of elevated, primary, land areas which extend in a spiral pattern from the apex of the cone to the base. In a preferred embodiment, a plurality of elevated, secondary, land areas spiral from points intermediate the apex and base of the cone to the base of the cone in an alternate arrangement with the primary land areas. Cutting teeth are mounted upon each of the primary and secondary spiral land areas for digging into the earth formations during a drilling operation and in a preferred embodiment comprised partial disc shaped members which are embedded into the land portions of the spiral drill cone. A plurality of jet nozzles are mounted through the drill bit body and are generally directed between the shanks to project lubricating and cleansing drill fluid onto the rotating cutting cones and/or earth formation during a drilling operation. The maximum gauge of the drill bit is provided by an arcuate and annular enlargement zone fashioned generally at the base of each cutting cone. This zone enlarges the bore hole and facilitates vertical drill bit penetration.
摘要翻译： 用于钻孔通过地层的旋转钻头和钻头锥体。 旋转钻头包括大致中空的主体部分，其具有多个纵向延伸的杆，其以向内指向的主轴终止。 切割锥体安装在每个柄轴上并且设置有多个升高的主要陆地区域，其以锥形的顶点延伸到基部的螺旋图案。 在优选实施例中，多个升高的次级陆地区域与锥形区域的顶点和底部之间的中心螺旋，与锥形区域的基部以主要陆地区域的替代布置。 切割齿安装在每个初级和次级螺旋状陆地区域上，用于在钻井操作期间挖掘到地层中，并且在优选实施例中包括嵌入螺旋钻锥体的陆部中的部分盘形构件。 多个喷嘴通过钻头体安装并且通常被引导在柄之间，以在钻井操作期间将润滑和清洁钻井液投影到旋转的切割锥体和/或地层上。 钻头的最大规格由通常在每个切割锥体的基部形成的弓形和环形扩大区域提供。 该区域扩大钻孔，便于垂直钻头穿透。
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公开(公告)号：US4304440A
公开(公告)日：1981-12-08
申请号：US97490
申请日：1979-11-26
申请人： Charles L. Posciri
发明人： Charles L. Posciri
CPC分类号： E21B10/16 , B28D1/186 , E02F5/32 , E02F9/2833 , E02F9/2866
摘要： A roller cutter especially adapted to fracture permafrost material includes a plurality of cutter teeth integrally formed with, and extending radially outwardly from the outer surface of a rotor. The rotor is antifrictionally supported on a stator to enable it to rotate about it along its longitudinal axis. The cutter teeth are arranged about the circumference of the rotor in a plurality of rings, with the rings uniformly spaced along the length of the rotor. The rings of teeth are progressively rotated relative to each other so that corresponding teeth of adjacent rows are staggered with respect to each other. However, the teeth of the rows at each end of the rotor are aligned along the rotor length.
摘要翻译： 特别适用于断裂多年冻土材料的滚筒切割机包括与转子的外表面一体地形成并且从转子的外表面径向向外延伸的多个切割齿。 转子被抗力地支撑在定子上以使其能够沿其纵向轴线绕其旋转。 切割齿围绕转子的圆周布置在多个环中，其中环与转子的长度均匀地间隔开。 齿的环相对于彼此逐渐旋转，使得相邻行的相应齿相对于彼此交错。 然而，转子的每一端的行齿都沿转子长度排列。
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公开(公告)号：US4256194A
公开(公告)日：1981-03-17
申请号：US907485
申请日：1978-05-19
申请人： Daniel W. Varel
发明人： Daniel W. Varel
摘要： A rotary drill bit for use on a rotating drill string includes a solid forged unitary main body having a plurality of downwardly facing hemi-cylindrical body surfaces. A plurality of cutter bases are provided, each cutter base including an upwardly facing hemi-cylindrical base surface that is fused to one of the body surfaces by electron beam welding. Each cutter base includes a bearing pin extending inwardly with respect to the bit. A cone shaped cutter is rotatably mounted on the bearing pin for rotating about the bearing pin during drilling operations to bore through earth formations.
摘要翻译： 用于旋转钻柱的旋转钻头包括具有多个朝下的半圆柱体表面的实心锻造的整体式主体。 提供多个切割器基座，每个切割器基座包括通过电子束焊接而熔合到其中一个体表面的朝上的半圆柱形基面。 每个切割器底座包括相对于钻头向内延伸的轴承销。 锥形切割器可旋转地安装在轴承销上，用于在钻孔操作期间绕轴承销旋转以穿过地层。
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公开(公告)号：US4248314A
公开(公告)日：1981-02-03
申请号：US43532
申请日：1979-05-29
摘要： An earth boring drill bit for large diameter shafts has an improved cutter arrangement. The drill bit has a cutter support member with a number of cutters mounted to it for disintegrating the earth formation face. At least one inner cutter is mounted near the center for cutting the center area. A number of gage cutters are mounted at the periphery to cut the gage area of the shaft. A number of intermediate cutters are spaced between the inner and gage cutters. Each intermediate cutter overlaps one-half of its width with an adjacent intermediate cutter.
摘要翻译： 用于大直径轴的钻孔钻具具有改进的切割装置。 钻头具有刀片支撑构件，其具有安装到其上的多个切割器，用于分解地层形成面。 在中心附近安装至少一个内刀片，用于切割中心区域。 在周边安装了许多量具切割器以切割轴的表面积。 许多中间切割器在内切刀与切刀之间间隔开。 每个中间刀具与其相邻的中间刀具重叠其宽度的一半。
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