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公开(公告)号：US20010023783A1
公开(公告)日：2001-09-27
申请号：US09814238
申请日：2001-03-21
发明人： Josef Obermeier
IPC分类号： E21B017/22
CPC分类号： E21B10/445 , B23B51/02 , B23B2226/75 , B23B2251/406 , B23B2260/112 , E21B10/44
摘要： A twist drill (1) has a plurality of of protuberances (9) arranged in the grooves (6) of the helix (4) which project radially outward partially into the groove cross section to prevent clumps.
摘要翻译： 麻花钻（1）具有布置在螺旋（4）的凹槽（6）中的多个突起（9），其部分地径向向外突出到槽横截面中以防止团块。
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公开(公告)号：US5641028A
公开(公告)日：1997-06-24
申请号：US513372
申请日：1995-08-10
CPC分类号： B23B51/02 , B21H3/10 , B23P15/32 , E21B10/445 , B23B2226/75 , B23B2251/406 , Y10T408/9097
摘要： A cutting tool or drill bit (10) has a shank (12) with two ends. A chucking end (14) is on one end of the shank (12) and a cutting end (16) is on the other end of the shank (12). At least one flute (30) is formed on the shank (12) between the chucking (14) and cutting ends (16). The flute (30) includes a web (36) and a debris channel (32). The web (36) includes a first (38) and second (40) surface continuous with a debris channel side wall (34). The first surface (38) is substantially parallel to the shank longitudinal axis (18) and the second surface (40) is on an angle from about 100.degree. to about 120.degree. with respect to the shank longitudinal axis (18). The second surface forms the base of the debris channel or groove (32) with the debris channel side wall (34). The debris channel side wall (34) is on an angle from about 10.degree. to about 20.degree. with respect to the shank longitudinal axis (18). A ratio exists between the axial length of the first surface to the axial length of debris channel surface of about 2:1 to about 4:1. Also disclosed is a method of cold rolling a blank (60) to form the above drill bit (10).
摘要翻译： 切割工具或钻头（10）具有带有两端的杆（12）。 夹持端（14）位于柄（12）的一端，切割端（16）位于柄部（12）的另一端。 在夹头（14）和切割端（16）之间的柄部（12）上形成至少一个凹槽（30）。 凹槽（30）包括网（36）和碎片通道（32）。 腹板（36）包括与碎屑通道侧壁（34）连续的第一（38）和第二（40）表面。 第一表面（38）基本上平行于柄纵向轴线（18），并且第二表面（40）相对于柄纵向轴线（18）为大约100°至大约120°的角度。 第二表面与碎屑通道侧壁（34）形成碎屑通道或凹槽（32）的基部。 碎片通道侧壁（34）相对于柄纵轴线（18）为大约10°至大约20°的角度。 在第一表面的轴向长度与碎片通道表面的轴向长度之间存在约2:1至约4:1的比率。 还公开了冷轧坯料（60）以形成上述钻头（10）的方法。
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公开(公告)号：US5492187A
公开(公告)日：1996-02-20
申请号：US341776
申请日：1994-11-18
CPC分类号： E21B10/58 , E21B10/445
摘要： A rock drill has an axially elongated shank (1) with a hard metal drill head (2) secured at one end. The transverse cross-section of the drill head is basically rectangular with cutters located along each of two diagonals of its cross-section. The cutters remove drillings from rock. The cutters include a main cutter (4) and two auxiliary cutters (5, 6) having the same rotational envelope curve.
摘要翻译： 凿岩机具有轴向细长的柄部（1），其中固定在一端的硬金属钻头（2）。 钻头的横截面基本上是矩形的，切割器沿其横截面的两个对角线中的每一个定位。 刀具从岩石上移除钻孔。 切割器包括主切割器（4）和具有相同旋转包络线的两个辅助切割器（5,6）。
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公开(公告)号：US5452771A
公开(公告)日：1995-09-26
申请号：US221841
申请日：1994-03-31
申请人： Mark P. Blackman , Jay S. Bird , Michael S. Beaton
发明人： Mark P. Blackman , Jay S. Bird , Michael S. Beaton
CPC分类号： E21B10/25 , E21B10/445 , E21B10/50
摘要： A rotary cone drill bit for forming a borehole having a body with an underside and an upper end portion adapted for connection to a drill string. The drill bit rotates around a central axis of the body. A number of angularly-spaced arms are integrally formed with the body and depend therefrom. Each arm has an inside surface with a spindle connected thereto and an outer shirttail surface. Each spindle projects generally downwardly and inwardly with respect to the central axis, has a generally cylindrical upper end portion connected to the inside surface, and has an inner sealing surface within the upper end portion. A number of rotary cone cutters equal to the number of arms are each mounted on one of the spindles. Each of the cutters includes an internal generally cylindrical wall defining a cavity for receiving the spindle, a gap with a generally cylindrical first portion defined between the spindle and cavity wall, an outer sealing surface in the cavity wall concentric with the inner sealing surface, and a seal element spanning the gap and sealing between the inner and outer sealing surfaces. The gap has an opening contiguous with and directed outwardly from the shirttail surface. The rotary cone cutters are preferably composites formed from different types of material.
摘要翻译： 一种用于形成钻孔的旋转锥形钻头，其具有具有下侧的主体和适于连接到钻柱的上端部分。 钻头围绕主体的中心轴线旋转。 多个角度间隔的臂与主体一体地形成并从其上取下。 每个臂具有内表面，其中连接有主轴和外部衬衫表面。 每个主轴相对于中心轴线大致向下和向内突出，具有连接到内表面的大致圆柱形的上端部，并且在上端部内具有内密封表面。 等于臂数的多个旋转锥形切割器分别安装在其中一个主轴上。 每个切割器包括限定用于接收主轴的空腔的内部大致圆柱形壁，与主轴和空腔壁之间限定的大致圆柱形的第一部分的间隙，与内部密封表面同心的空腔壁中的外部密封表面，以及 跨越间隙的密封元件和内密封表面和外密封表面之间的密封。 间隙具有与衬衫表面相邻并从衬衫表面向外指向的开口。 旋转锥形切割器优选由不同类型的材料形成的复合材料。
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公开(公告)号：US4924953A
公开(公告)日：1990-05-15
申请号：US341206
申请日：1989-04-21
申请人： Bernhard Moser
发明人： Bernhard Moser
CPC分类号： E21B10/40 , E21B10/445 , Y10T408/907 , Y10T408/9097
摘要： A rock drill for rotary and/or percussive stress, in particular for use in percussion or hammer drilling machines, is proposed, which by its geometrical design makes improved efficiency and simplified production possible. For this purpose, the feed spiral 5 is designed alternately with horizontal feed sections 8,8' with a 0.degree. pitch, and adjoining lead sections 9,9', the respective feed sections assuming an angle of rotation of 90.degree. on the drilling tool.
摘要翻译： 提出了一种用于旋转和/或冲击应力的凿岩机，特别是用于打击乐或锤击机器，其几何设计使得提高效率和简化生产成为可能。 为此，进给螺旋5交替地设计为具有0°间距的水平进给部分8,8'和相邻的引导部分9,9'，各个进给部分在钻具上呈现90°的旋转角度 。
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公开(公告)号：US4852670A
公开(公告)日：1989-08-01
申请号：US103754
申请日：1987-10-02
申请人： Wolfgang Peetz , Bernhard Moser
发明人： Wolfgang Peetz , Bernhard Moser
CPC分类号： B23B51/02 , B23B31/005 , E21B10/40 , E21B10/445 , E21B17/073 , B23B2251/02 , B23B2251/18 , B23B2260/136 , Y10T408/907
摘要： The drilling tool proposed serves for making perforations and is equipped with an exchangeable feed helix. To prevent the feed helix from being damaged if the drilling tool becomes tilted or if the feed helix is jammed, the feed helix can execute a specific stroke by means of a supporting spring, in such a way that the drill shank can rotate freely relative to the feed helix.
摘要翻译： 所提出的钻孔工具用于制造穿孔，并且配备有可交换的进料螺旋。 为了防止进给螺旋线被磨损，如果钻具变得倾斜或者如果进给螺旋被卡住，进给螺旋可以通过支撑弹簧执行特定行程，使得钻杆可以相对于 饲料螺旋。
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公开(公告)号：US4579180A
公开(公告)日：1986-04-01
申请号：US610754
申请日：1984-05-16
CPC分类号： E21B17/22 , E21B10/445 , B23B2251/046
摘要： A drilling bit having two helical withdrawal grooves which extend from the drilling head in the direction toward the insertion or chucking end. The withdrawal grooves have least slope in the vicinity of the drilling head. In the other regions, the withdrawal grooves have a different slope. As a result, no cross-sectional jumps disposed at uniform intervals are provided on the drilling bit, so that transverse oscillations cannot be reinforced by partially constantly or continuously reflected pulses. A considerable reduction in noise is achieved. Furthermore, the central portion of the drilling bit, which is critical during drilling, receives great rigidity.
摘要翻译： 钻头具有从钻头朝向插入或夹紧端的方向延伸的两个螺旋取出槽。 退出槽在钻头附近具有最小的斜度。 在其他区域中，退出槽具有不同的斜率。 结果，在钻头上没有设置均匀间隔的横截面跳跃，使得横向振荡不能通过部分恒定或连续反射的脉冲来加强。 实现了相当大的噪音降低。 此外，钻孔的中心部分在钻井过程中是关键的，具有很大的刚度。
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公开(公告)号：US4294319A
公开(公告)日：1981-10-13
申请号：US33305
申请日：1979-04-25
申请人： Karlheinz Guergen
发明人： Karlheinz Guergen
CPC分类号： E21B10/58 , E21B10/40 , E21B10/445
摘要： A replaceable cutter head for rotary percussion drills having a pilot cutter on the end of a drill stem with a main cutter head surrounding the pilot cutter, the main cutter head having hammering/chipping cutters and milling cutters arranged along radial lines extending from the pilot cutter to the outer periphery of the main cutter head in alternate arrays, either along the radial cutter lines or on alternate radial cutter lines, or both.
摘要翻译： 一种用于旋转冲击钻头的可更换刀头，在钻杆的端部具有一个先导切割器，其中包括主切割器的主刀头，主刀头具有锤击/切屑切割器和铣刀，沿着从引导刀具延伸的径向线布置 或者沿着径向切割线或交替的径向切割线，或两者，以交替排列的方式连接到主切割头的外周。
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公开(公告)号：US3773122A
公开(公告)日：1973-11-20
申请号：US3773122D
申请日：1972-06-07
申请人： PALAR CURACAO NV
发明人： CHROMY F
CPC分类号： E21B10/54 , E21B10/40 , E21B10/445
摘要： A rock drilling tool, such as used with a hammer drill, consists of an axially extending shank and a drilling tool head at one end of the shank which provides the rock drilling or cutting action. The drilling tool head includes a centrally positioned axially extending centering projection with at least three angularly spaced drilling fingers disposed radially outwardly from the centering projection and forming therebetween an annular recess which extends inwardly into the drilling tool head from the axial end surfaces of the drilling fingers. Each drilling finger has a drilling tooth on its axial end surface and a circle including the radially outer surfaces of the drilling teeth has a greater diameter than the diameter of the shank. The arrangement of the centering projection, the spaced drilling fingers and the annular recess affords efficient removal of drilled material and reduced friction between the hole being drilled and the drilling tool.
摘要翻译： 诸如与锤钻一起使用的凿岩工具包括轴向延伸的柄和在柄的一端处的钻具头，其提供岩石钻孔或切割动作。 该钻具头部包括一个居中定位的轴向延伸的定心突起，其中至少有三个角度间隔开的钻孔指状件从该定心突起径向向外设置，并在其间形成一个环形凹槽，该凹槽从钻孔手指的轴向端面向内延伸进入钻具头部 。 每个钻孔手指在其轴向端表面上具有钻齿，并且包括钻孔齿的径向外表面的圆的直径大于柄的直径。 定心突起，间隔开的钻孔手指和环形凹槽的布置能够有效地去除钻孔材料，并减少钻孔孔和钻孔工具之间的摩擦力。
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公开(公告)号：US3469643A
公开(公告)日：1969-09-30
申请号：US3469643D
申请日：1967-05-09
CPC分类号： B23B31/005 , B23B2231/0264 , E21B10/445
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