CN103443388B - 用于将腿部保持在混合式钻头上的系统和方法 - Google Patents
用于将腿部保持在混合式钻头上的系统和方法 Download PDFInfo
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- E—FIXED CONSTRUCTIONS
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Abstract
一种钻土机钻头,包括:一条或多条腿部;钻头体,具有刀片和用于容纳腿部的狭槽;一个或多个楔子,位于所述腿部和所述狭槽之间并将腿部固定在狭槽内。狭槽可具有两个平行的侧壁,其中一个侧壁形成锐角,而另一个侧壁形成钝角。楔子可紧挨着成钝角的侧壁被固定。楔子可具有两条成钝角的侧壁,一个或多个穿过各个楔子的螺栓可以将楔子和腿部二者紧固到钻头体。在一个优选的实施例中,楔子的成钝的角侧壁优选地紧挨着腿部的成锐角的侧壁而被固定。
Description
相关申请案的交叉引用
本申请要求享有2008年5月2日提交的题为“用于将腿部保持在混合式钻头上的系统和方法”的美国申请案序列第12/114537号的优先权,其全部内容将以具体引用的方式并入本文。
联邦政府资助的研究或开发的声明
不适用
参考附录
不适用
技术领域
本发明总体上涉及钻土钻头,尤其涉及一种具有牙轮刀具和固定刀具和切削元件的组合体的钻头、以及一种用所述钻头钻孔的方法。
背景技术
美国专利第3,294,186号公开了用于牙轮钻头部件的钎焊的镍垫片的应用。
美国专利第3,907,191号公开了如下内容:“一种旋转式牙轮钻头是由许多单独的部分构成。每个单独的部分包括两个分离面和保径(gage)切削表面。各单独的部分被定位成彼此相邻,且相邻部分的分离面处于彼此邻接的关系。一环规定位在各部分的周围,且各单独的部分相对于彼此运动,从而使单独的部分的分离面紧贴着相邻的部分的分离面滑动。使所述部分运动直到各部分的保径切削表面接触环规,从而保证制成的钻头具有所需的保径尺寸。各部分在绝大部分分离面上焊接到一起”。
美国专利第5,439,067号公开了如下内容:“一种用于形成钻孔的旋转式锥形钻头,其具有一体式钻头体,该钻头体包括具有凸外表面的下部部分和适用于连接至钻柱的上部部分。若干个支撑臂优选地附接到钻头体并从钻头体悬垂。每个支撑臂均具有内表面和外表面,心轴连接至内表面。每个心轴均相对于相关联的支撑臂大体上向下并向内突伸。与支撑臂数量相等的若干个锥形刀具组件安装在各个心轴上。支撑臂在钻头体的外部上间隔开,以便在钻头体的下部部分和支撑臂之间提供增强的流体流动。另外,对支撑臂的长度进行选择,以便在相关联的锥形刀具组件和钻头体的下部之间提供增强的流体流动。同一的钻头体可以与各种具有不同保径直径的旋转式锥形钻头一起使用”。
美国专利第5,439,068号公开了如下内容:“一种用于形成钻孔的旋转式锥形钻头,其具有一体式钻头体,该钻头体包括具有凸外表面的下部部分和适用于连接至钻柱的上部部分。钻头将通常绕钻头体的中心轴线旋转。若干个支撑臂优选地附接到钻头体中形成的凹穴并从该凹穴处悬垂。每个支撑臂均具有内表面和外表面,心轴连接至内表面。每个心轴均相对于相关联的支撑臂的纵向轴线及钻头体的中心轴线大体上向下并向内突伸。与支撑臂数量相等的若干个锥形刀具组件分别安装在各个心轴上。对各个支撑臂之间的间距及其各自的长度和宽度尺寸进行选择,以便增强安装在各相应支撑臂上的锥形刀具组件和钻头体的下部部分之间的流体流动。在各个支撑臂中优选设置有润滑剂储存器,以便为一个或更多个设置在各个锥形刀具组件及其相关联的心轴之间的支承组件提供润滑剂。可采用相匹配的开口和柱或相匹配的键槽和键在最终制成的钻头的制造期间将各个支撑臂的一部分定位并对齐在相关联的凹穴内”。
美国专利第5,595,255号公开了如下内容:“一种用于形成钻孔的旋转式锥形钻头,其具有钻头体,该钻头体具有适用于连接至钻柱的上端部。钻头绕钻头体的中心轴线旋转。从钻头体优选地延伸出若干个支撑臂。支撑臂可以形成为钻头的整体式部分或者在凹穴中附接到钻头体的外部,该凹穴的的尺寸适合容纳相关的支撑臂。每个支撑臂均具有带有内表面的下部部分和牙爪尖外表面,心轴连接至内表面。每个心轴均相对于其相关的支撑臂大体上向下并向内突伸。与支撑臂数量相等的若干个锥形刀具组件分别安装在心轴上。在与相关的心轴邻近的各个支撑臂的下部部分上设置有喉式起伏区,以便增加支撑臂和相应锥形刀具组件之间的流体流动”。
美国专利第5,606,895号公开了如下内容:“一种旋转式锥形钻头,其具有一体式钻头体,该钻头体包括具有凸外表面的下部部分和适用于连接至钻柱的上部部分。钻头将通常绕钻头体的中心轴线旋转以形成钻孔。若干个支撑臂优选地附接到在钻头体内形成的凹穴并从凹穴处悬垂。钻头体和支撑臂相互配合,以减少初始制造成本并允许磨损钻头的修复。每个支撑臂均具有内表面和牙爪尖外表面,心轴连接至内表面。每个心轴均相对于相关的支撑臂的纵向轴线及钻头体的中心轴线大体上向下并向内突伸。与支撑臂数量相等的若干个锥形刀具组件分别安装在各个心轴上。对相关的钻头体周边上的支撑体的径向间距以及其各自的长度及宽度尺寸进行选择,以便增强安装在相应的支撑臂上的锥形刀具组件和钻头体的下部部分之间的流体流动。最终制成的钻头提供了增强的流体流动、增加的密封度和支承寿命,并且提高了井下性能以及生产和设计工序的标准化程度”。
美国专利第5,624,002号公开了如下内容:“一种旋转式锥形钻头,其具有一体式钻头体,该钻头体包括具有凸外表面的下部部分和适用于连接至钻柱的上部部分。钻头将通常绕钻头体的中心轴线旋转以形成钻孔。若干个支撑臂优选地附接到在钻头体中形成的凹穴并从凹穴处悬垂。钻头体和支撑臂相互配合,以减少初始制造成本并允许磨损钻头的修复。每个支撑臂均具有内表面和牙爪尖外表面,心轴连接至内表面。每个心轴均相对于相关的支撑臂的纵向轴线及钻头体的中心轴线大体上向下并向内突伸。与支撑臂数量相等的若干个锥形刀具组件分别安装在各个心轴上。对相关的钻头体的周边上的支撑体的径向间距以及其各自的长度及宽度尺寸进行选择,以便提高安装在相应的支撑体上的锥形刀具组件和钻头体的下部分之间的流体流动。最终制成的钻头提供了增强的流体流动、增加的密封度和支承寿命,提高了井下性能以及生产和设计工序的标准化程度”。
美国设计专利第D372,253号示出了一种用于模块化钻头的支撑臂和旋转锥。
本文所揭露并教导的这些发明是针对具有牙轮刀具和固定刀具及切削元件的组合体的改进型混合式钻头。
发明内容
本文所披露并教导的这些发明是针对一种钻土钻头,其包括:一条或更多条腿部;钻头体,所述钻头体具有刮刀和用于容纳所述腿部的狭槽;以及一个或更多个楔子,所述楔子位于所述腿部和所述狭槽之间以将所述腿部固定在所述狭槽中。所述狭槽可具有两个平行的侧壁,其中一个侧壁形成锐角而另一个侧壁形成钝角。所述楔子可以紧挨着成钝角的侧壁而被固定。所述楔子可具有两个成钝角的侧壁。所述钻头可包括一个或更多个穿过各个楔子的螺栓,所述螺栓将所述楔子和所述腿部二者固定到所述钻头体。在替代实施例中,所述狭槽可以具有两个彼此不平行的侧壁,例如所述侧壁中的第一个侧壁从所述钻头体的轴向中心大致正直地向外延伸。在这种情况下,所述楔子优选紧挨着所述第一个侧壁固定。然而,在大多数情况下,所述楔子的成钝角的侧壁优选紧挨着腿部的成锐角的那一侧壁而被固定。
附图说明
图1是混合式钻土钻头的实施例的底部平面图;
图2是图1的混合式钻土钻头的实施例的侧视图;
图3是依照本发明构造的图1的混合式钻土钻头的另一实施例的分解图;
图4是图1的混合式钻土钻头的合成的旋转侧视图;
图5是依照本发明构造的图1的混合式钻土钻头的简化侧视图;
图6是依照本发明构造的图1的混合式钻土钻头的简化截面平面图;
图7是图6的分解图;以及
图8是依照本发明构造的图1的混合式钻土钻头的简化的截面正视图。
具体实施方式
上述附图以及下面对特定结构和功能的书面说明并不用于限制申请人已发明的范围或所附权利要求的范围。相反,附图和书面说明用于教导本领域技术人员制造和使用所要求专利保护的本发明。本领域技术人员应了解,为了清楚和理解的目的,并没有介绍或显示本发明商业实施例的所有特征。本领域技术人员还应了解,包含本发明多个方面的实际商业实施例的开发将需要大量的在实施上特定的决定,以便实现开发者的用于商业实施例的最终目标。这些在实施上特定的决定包括但可能不限于与相关系统、相关商业、相关政府以及其它限制条件相符,这些可以根据特定实施、位置并随时间而变化。尽管开发者的努力可能在绝对意义上是复杂且耗时的,但是这些努力将是受益于本发明的本领域普通技术人员进行的常规工作。应理解,本文公开和教导的本发明可以有大量不同的变化和替代形式。最后,使用的单数形式,例如但不限于“一”,并不意在限制项目的数量。另外,在书面说明中使用的关系术语,例如但不限于“顶部”、“底部”、“左”、“右”、“上部”、“下部”、“下”、“上”、“侧”等,用于清楚地具体参照附图时,并不意在限制本发明或所附权利要求的范围。
申请人已经创造了一种钻土钻头,其包括:一条或更多条腿部;钻头体,所述钻头体具有刮刀和用于容纳所述腿部的狭槽;以及一个或更多个楔子,所述楔子位于所述腿部和所述狭槽之间以将所述腿部固定在所述狭槽中。所述狭槽可具有两个平行的侧壁,其中一个侧壁形成锐角而另一个侧壁形成钝角。所述楔子可以紧挨着成钝角的侧壁而被固定。所述楔子具有两个成钝角的侧壁。所述钻头可包括一个或更多个穿过各个楔子的螺栓,所述螺栓将所述楔子和所述腿部二者固定到所述钻头体。在替代实施例中,所述狭槽可以具有两个彼此不平行的侧壁,例如所述侧壁中的第一个侧壁从所述钻头体的轴向中心大致正直地向外延伸。在这种情况下,所述楔子优选紧挨着所述第一个侧壁固定。然而,在大多数情况下,所述楔子的成钝角的侧面优选紧挨着腿部的成锐角的那一侧侧壁而被固定。
参照图1和图2,其公开了一种模块化混合式钻土钻头的说明性实施例。钻头11可类似于美国专利申请公开文件第20090272582号和/或第20080296068号中所示的钻头,这两篇文献均以引用的方式并入本文。钻头11包括具有纵向轴线15的钻头体13,该纵向轴线限定出钻头体13的轴向中心。多个(例如,如图所示的两个)钻头腿部或头部17从钻头体13沿轴向延伸,并且平行于纵向轴线15。因为腿部17固定在钻头体13周围,腿部也可以从钻头体13径向突出。钻头体13还具有多个在轴向上延伸的固定刮刀19.
牙轮刀具21安装在相应的钻头腿部17上。每个牙轮刀具21均成形和定位成使得牙轮刀具21的每个表面均与轴向中心15在径向上间隔开最小的径向距离23。多个牙轮刀具切削插入件或切削元件25安装至牙轮刀具21并与轴向中心15在径向上间隔开最小的径向距离27。最小的径向距离23、27可以根据应用而改变,并且可以因刀具和/或切削元件的不同而不同。
此外,多个固定切削元件31安装到固定刮刀19上。至少一个固定切削元件31可位于钻头体13的轴向中心15处并且适于在轴向中心处切削地层。在一个实施例中,至少一个固定切削元件31位于离轴向中心约0.040英寸的范围内。牙轮刀具切削元件25和固定切削元件31的示例包括碳化钨插入件、由超硬材料(例如多晶金刚石)制成的刀具、以及本领域技术人员熟知的其它刀具。
图3图解说明了钻头11的模块化方面。图3是被拆卸的钻头111的各部分的分解图。图3的说明性实施例是一种三刀具三刮刀式钻头。本发明的模块化结构原理同样适用于图1和图2所示的两刀具两刮刀式钻头11以及具有固定刮刀和牙轮刀具的任意组合的混合式钻头。
如图所示,钻头111包括接头部分或接头段113,该接头部分或接头段在其上部范围配置有螺纹或其它结构以便连接到钻柱中。在接头部分113的下部范围形成有大体上呈圆筒形的接收部115。该接收部容纳位于钻头体部分119的上部范围的具有相应的形状和尺寸的圆柱形部分117。通过将钻头体部分119的上部范围的圆柱形部分117插入到接头部分113的下部范围中的圆筒形接收部115内,而将接头部分113和钻头体部分119连接在一起。对于图示的十二又四分之一英寸的钻头,接收部是2级(Class2)的阴螺纹,该阴螺纹与位于钻头体的上部范围的相匹配的阳螺纹接合。然后圆形接缝或接合部连续地被堆焊,以使两个部分或两个段固定在一起。接收部115及上部范围117不必为圆柱形,而可以是匹配在一起的其它形状,或者可以是依赖焊接以便增加强度的滑动或转动配合。作为替代,接合部可通过上部范围119和接收部115之间的紧密过盈配合而强化。围绕接缝也可使用点焊和/或全焊。
钻头腿部或头部17、121(图中所示有三个)容纳在轴向延伸的狭槽中123中(同样,为每个腿部或头部121均布置有一狭槽123)。狭槽123可以是鸠尾榫式的(腿部121的形状与之相对应),使得腿部121仅能轴向滑动且防止了腿部121从狭槽123径向移出。多个(四个)螺栓127和垫圈将各条腿部121固定在狭槽123内,使得腿部121被固定而不会轴向地移入和移出狭槽123。牙轮刀具125通过滚珠式锁止密封组件129固定在与各腿部121相联的支承件上。腿部121中的孔口(螺栓127延伸穿过该孔口)可以是椭圆形的和/或具有超大尺寸,以允许腿部121在狭槽123内轴向和/或径向定位,这又允许能对各个牙轮刀具上的切削元件的相对突出的部分进行选择。各腿部121中还承载有润滑剂补偿器组件131,该润滑剂补偿器组件在钻孔操作期间为支承组件提供润滑剂并补偿润滑剂中的压力变化。至少一个喷嘴133被容纳并保持在钻头体部分119中,以将钻孔流体流从钻头111的内部引导到靠近钻头的刀具和刀片的选定位置。
狭槽123优选地具有一对相邻的相对的侧面135、135a、135b(见图6)。如在下面将进一步详细论述,侧面135可以是倾斜的。可以是曲面或平面的第三侧面137(见图6)连接两个相对的侧面135。钻头体13、119中形成有螺纹盲孔或螺纹盲口139(见图6)以容纳各个紧固件或螺栓127.
如图4所示,牙轮切削元件25和固定切削元件31组合在一起限定出切削型面41,所述切削型面从轴向中心15延伸至相对于轴线的径向最外侧周缘43。在一个实施例中,仅固定切削元件31在轴向中心15和径向最外侧周缘43形成切削型面41。然而,牙轮切削元件25与位于轴向中心15和径向最外侧周缘43之间的切削型面41上的固定切削元件31重叠。牙轮切削元件25被配置成在切削型面41的鼻部45和肩部47进行切削,其中鼻部45为切削型面的面向钻孔壁并且与径向最外侧周缘43相邻定位的引导部分(即,位于轴向中心15和肩部47之间)。
因此,牙轮切削元件25和固定切削元件31组合在一起以在鼻部45和肩部47中限定出共同的切削面51(见图2),鼻部45和肩部47已知是固定刀具钻头型面中最脆弱的部分。切削面51位于混合式钻头11的轴向上的远端。在一个实施例中,各个牙轮切削元件25和各个固定切削元件31中的至少一个在切削面51沿轴向延伸大致相等的尺寸。在一个实施例中,虽然牙轮切削元件25和固定切削元件31在轴向上对齐,但它们在径向上彼此偏置。然而,最远端的牙轮切削元件25、固定切削元件31之间的轴向对齐不需要使得所述牙轮切削元件25、固定切削元件31处于其最远端位置时在轴向上间隔开很大的距离。例如,牙轮切削元件25或固定切削元件31可以延伸超过切削面51,或者也可以不完全延伸到该切削面。换言之,牙轮切削元件25可随着固定切削元件31在轴向上偏离切削面51而延伸到切削面51。
还参照图5,当腿部17、121可被焊接在钻头体13的狭槽123内时,可额外地或替代性地利用一个或更多个楔子201将腿部固定。也可以将楔子201焊接和/或螺栓连接至钻头体13,例如通过使用紧固件或螺栓127进行连接。
如图6和图7所示,狭槽123的侧壁或称为侧面135可以是倾斜的。更具体地说,侧壁135a中的第一个侧壁可以朝向另一侧壁成锐角141地倾斜,而另一侧壁135b可以远离所述第一个侧壁成钝角143地倾斜。利用这种结构,腿部17通过抵靠在狭槽123的成锐角的侧壁135a上的第一侧壁145a而螺栓连接至狭槽123中,从而局部地将腿部17锁定就位。腿部17、121的第一侧壁145a的锐角147优选地与狭槽123的第一侧壁135a的锐角141相匹配。在优选实施例中,腿部17的第二侧壁145b也以锐角149定位,该锐角可与腿部17的第一侧壁145a的锐角147相似或完全相同。然后楔子201在腿部17的成锐角的第二侧壁145b和狭槽123的成钝角的侧壁135b之间螺栓连接至狭槽123中。因为楔子201优选地具有形成图示的钝角151、153的两个钝角侧壁203、203a、203b,因此楔子201将腿部17牢牢地固定在狭槽123内,并且紧固楔子201的螺栓127被拧紧。然后可将塞子焊接在螺栓127上以防止螺栓127在操作期间转动,从而进一步将楔子201及腿部17固定在狭槽123中。
侧壁135可以是平行的,如图所示。在这种情况下,利用所示的平行的侧壁135,使腿部17保持就位的螺栓127有望比使楔子201保持就位的螺栓127承受更少的张力。
替代性地,相对于从90°的偏移,侧壁135a、135b可以以不同的角度倾斜。例如,第一侧壁135a和/或第二侧壁135b可以从钻头体13的轴向中心大致正直地向外以角度141定位,所述角度141是基本上切向的直角而非如图所示的锐角和钝角。以这种方式,狭槽123的侧壁135可离钻头体13的轴向中心更近并且随着各侧壁的向外延伸而向外成角并彼此远离。这种结构将会导致使腿部17和楔子201二者保持就位的螺栓127上具有相当大的张力载荷。
在又一实施例中,第一侧壁135a可以如图所示地成角,并且第二侧壁135b从钻头体13的轴向中心大致正直地向外定位。楔子201的成角的边203仍然会将腿部17压靠在第一侧壁135a上,从而将腿部17按住就位。作为替代,楔子201的第一侧壁203a可如图所示地成角,并且楔子201的第二侧壁203b与第二侧壁135b一起从钻头体13的轴向中心大致正直地向外定位。在这种情况下,楔子201的成角边203a会将腿部17按压在第一侧壁135a上,从而将腿部17按住就位。然而,在任何情况下,对于从钻头体13的轴向中心正直地向外,并不期望楔子201的侧壁203、203a、203b平行,而是不必具有相似的角度。
参照图8,希望腿部17的压靠在狭槽的轴向端303上的轴向端301承载钻孔操作的大部分(如果不是全部的话)正常轴向载荷。在一些实施例中,腿部17可包括径向向内延伸的键305,该键延伸到狭槽123中的键槽307中。在这种情况下,键305的压靠在钻头体13上的上端309可以承载钻孔操作的一些正常轴向载荷。然而,也许更为重要的是,键305的压靠在钻头体13上的下端311可承载腿部17所受的任何反向轴向载荷,例如来自反向扩眼时产生的反向轴向载荷。该键305还可以防止螺栓127承载较大的或任何的剪切载荷。在一些实施例中,键305可以固定地紧固到腿部17,甚至可以采取整体凸出区域或凸台的形式,该整体凸出区域或凸台延伸到狭槽123中的键槽内以调节这些载荷。
在任何情况下,本发明的楔子201都克服了通常与模块部件及其组件相关的公差问题。本发明的楔子201及其它方面也最小化或消除了任何将腿部17焊接到钻头体13的需要,从而进一步有利于装配过程并同时仍然提供了钻头11的紧固装配。另外,由于主要部件仅通过螺栓连接在一起,因此在钻头11的返工期间可只对少数(如果有的话)焊接部件进行处理,这使得这些特征大大简化了钻头维修。例如,可简单地将焊接的塞子钻出,从而提供螺栓127的通道以根据需要移除和/或替换腿部17。
在不偏离本发明精神的情况下可以利用上述发明的一个或多个方面设计出其它以及进一步的实施例。另外,本发明的各种方法和实施例可相互组合以便产生所披露方法和实施例的各种变型。对单数元件的论述可包括复数元件,反之亦然。例如,每条腿部17可与多个楔子201一起使用。
步骤的次序可以以多种顺序来进行,除非另有明确限制。这里所述的各个步骤可以与其它步骤组合、插入所述步骤之间和/或分成多个步骤。类似的,已对在功能上对元件进行了说明,这些元件可以作为独立的部件实施或者可以组合成具有多功能的部件。
已经通过优选和其它实施例对本发明进行了说明,但是并没有对本发明的每一种实施例进行说明。本领域的普通技术人员能够获得对于所描述的实施例来说明显的修改和变更。已公开的和未公开的实施例并不旨在限制或限定本申请人所想到的本发明的范围或应用,相反,根据专利法,申请人旨在充分保护在所附权利要求的等效范围或者界限内的所有这些修改和改进。
Claims (12)
1.一种钻土旋转钻头,包括:
钻头体;
至少一个固定刮刀,所述固定刮刀与所述钻头体相联并且被构造成保持切削元件;
一条或更多条腿部,所述腿部被构造成旋转地保持牙轮刀具,每个牙轮刀具均具有至少一个切削元件,所述腿部具有预定尺寸的安装部;
所述钻头体具有狭槽,所述狭槽包括第一侧壁和第二侧壁、在所述第一侧壁和第二侧壁之间延伸的端壁以及底壁,所述狭槽被构造成用于容纳所述腿部的安装部并且具有比所述腿部的安装部更大的尺寸;
腿部的安装部包括腿部侧壁,所述腿部侧壁被构造成与狭槽的第一侧壁匹配;
轴向载荷反作用构件,所述轴向载荷反作用构件设置在腿部的安装部和狭槽的底壁之间;
楔子,所述楔子具有成钝角的侧壁,所述成钝角的侧壁被构造成位于所述腿部的成锐角的侧壁和所述狭槽的第二侧壁之间,从而将所述腿部固定在所述狭槽内,以及
多个螺纹紧固件,所述螺纹紧固件将所述腿部和所述楔子连接到所述钻头体。
2.如权利要求1所述的钻头,其中,所述狭槽的第一侧壁和第二侧壁平行。
3.如权利要求2所述的钻头,其中,所述狭槽的第一侧壁和第二侧壁中的一个侧壁与所述端壁形成锐角,而所述狭槽的另一个侧壁与所述端壁形成钝角。
4.如权利要求2所述的钻头,其中,所述楔子紧挨着成钝角的侧壁设置。
5.如权利要求1所述的钻头,其中,所述楔子具有两个成钝角的侧壁。
6.如权利要求1所述的钻头,所述钻头还包括一个或更多个穿过楔子的螺栓,所述螺栓将所述楔子和所述腿部二者固定到所述钻头体。
7.如权利要求1所述的钻头,其中,所述楔子的成钝角的侧壁紧挨着所述腿部的成锐角的侧壁而被固定。
8.如权利要求1所述的钻头,其中,所述轴向载荷反作用构件被构造成反抗剪切载荷以及轴向载荷。
9.一种组装钻土旋转混合式钻头的方法,所述方法包括以下步骤:
从多个预制牙轮刀具腿部中选择一条或更多条牙轮刀具腿部;
从多个预制钻头体中选择一钻头体,所述钻头体具有用于容纳所述腿部的狭槽;
将所述腿部通过螺栓连接在所述狭槽内;以及
将具有至少一个成角的侧壁的楔子通过螺栓连接在所述腿部和所述狭槽的侧壁之间,从而在不需焊接的情况下将所述腿部固定在所述狭槽内。
10.如权利要求9所述的方法,其中,穿过所述楔子上紧螺栓而将所述腿部压靠在所述狭槽的侧壁上。
11.如权利要求9所述的方法,所述方法还包括紧挨着所处狭槽的成钝角的侧壁放置所述楔子。
12.如权利要求9所述的方法,所述方法还包括紧挨着所处腿部的成锐角的侧壁放置所述楔子。
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- 2012-02-07 US US13/367,526 patent/US20120205160A1/en not_active Abandoned
- 2012-02-07 MX MX2013009044A patent/MX337212B/es active IP Right Grant
- 2012-02-07 EP EP12704599.5A patent/EP2673451B1/en active Active
- 2012-02-07 RU RU2013141472/03A patent/RU2601645C2/ru active
- 2012-02-07 WO PCT/US2012/024134 patent/WO2012109234A2/en active Application Filing
- 2012-02-07 CA CA2826685A patent/CA2826685C/en active Active
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Also Published As
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RU2601645C2 (ru) | 2016-11-10 |
RU2013141472A (ru) | 2015-03-20 |
BR112013020524A2 (pt) | 2016-10-25 |
WO2012109234A3 (en) | 2013-04-25 |
EP2673451B1 (en) | 2015-05-27 |
US20180266184A9 (en) | 2018-09-20 |
CN103443388A (zh) | 2013-12-11 |
EP2673451A2 (en) | 2013-12-18 |
BR112013020524B1 (pt) | 2020-09-29 |
US10132122B2 (en) | 2018-11-20 |
US20160230468A1 (en) | 2016-08-11 |
US20120205160A1 (en) | 2012-08-16 |
US20150197992A1 (en) | 2015-07-16 |
MX2013009044A (es) | 2014-02-11 |
PL2673451T3 (pl) | 2015-11-30 |
CA2826685A1 (en) | 2012-08-16 |
ZA201306003B (en) | 2014-05-28 |
SG192650A1 (en) | 2013-09-30 |
CA2826685C (en) | 2016-03-29 |
WO2012109234A2 (en) | 2012-08-16 |
MX337212B (es) | 2016-02-17 |
US9476259B2 (en) | 2016-10-25 |
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