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公开(公告)号：US10605006B2
公开(公告)日：2020-03-31
申请号：US15506833
申请日：2015-08-24
Applicant: SANDVIK INTELLECTUAL PROPERTY AB
Inventor： Karl-Oskar Finnman
Abstract: A rotary drill tool for cutting rock includes at least one journal leg mounting a spindle and a respective rotary cone cutter. The spindle includes a plurality of fluid distribution passageways arranged to provide a supply of a cooling and cleaning fluid to the bearing assembly. Vent holes are provided through the cutter to allow an exhaust flow of fluid and an annular seal is provided at a base region of the spindle to maintain a positive fluid pressure within the cutter cavity to prevent dust and dirt ingress.
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公开(公告)号：US09290997B2
公开(公告)日：2016-03-22
申请号：US14312080
申请日：2014-06-23
Applicant: Baker Hughes Incorporated , ELEMENT SIX LTD
Inventor： Alejandro Flores , Aaron J. Dick , Chih C. Lin , John F. Bradford , Louise F. van Staden , Gregory B. Swanepoel , Clement D. van der Riet , Siu-Wah Wai , Dragan Vukovic , Klaus Tank
CPC classification number: E21B10/23 , F16C17/10 , F16C33/106 , F16C43/04 , F16C2352/00 , Y10T29/49679
Abstract: Bearings for downhole tools including a first bearing member and a second bearing member, at least one of the first and second bearing members having a channel formed therein. Methods of cooling bearings of downhole tools comprise flowing a fluid within a channel formed in at least one bearing member. Heat is transferred from at least the at least one bearing member to the fluid. The fluid is flowed away from the at least one bearing member.
Abstract translation: 用于井下工具的轴承包括第一轴承构件和第二轴承构件，第一和第二轴承构件中的至少一个具有形成在其中的通道。 井下工具的冷却轴承的方法包括使流体在形成在至少一个轴承构件中的通道内流动。 热量至少从至少一个轴承部件转移到流体。 流体从至少一个轴承部件流出。
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公开(公告)号：US4541494A
公开(公告)日：1985-09-17
申请号：US435239
申请日：1982-10-19
Applicant: Donald D. Drummond , Walter F. Johnsey , Roy W. Wood
Inventor： Donald D. Drummond , Walter F. Johnsey , Roy W. Wood
Abstract: A drill bit assembly for a rotary drill having a source of fluid under pressure and three bearing mounted rotary cutting cones for drilling into relatively hard material comprises an elongated housing with a first end adapted for engagement with the drill and a second end including the cutting cones or tools for engagement with the material to be drilled. A plenum chamber is provided within the housing for receiving pressurized fluid and for dividing the pressurized fluid into three portions. A first portion of the pressurized fluid is directed downwardly for impringement upon the material being drilled to pick up and remove dust and cuttings from the vicinity of the cutting cones. A second flow of the pressurized fluid is directed upwardly to remove the dust and cutting cones from the drill hole. The third flow of fluid is directed through the cutting cone bearings to cool the bearings during the drilling operation. Storage means is also provided within the housing for receiving and storing a supply of lubricating fluid, the lubricating fluid flowing through a distribution conduit to the cutting cone bearings for lubrication thereof.
Abstract translation: 一种用于旋转钻头的钻头组件，其具有在压力下的流体源和用于钻入相对硬的材料的三个轴承安装的旋转切割锥体，其包括具有适于与钻头接合的第一端的细长壳体和包括切割锥体的第二端 或用于与要钻探的材料接合的工具。 在壳体内设置有增压室，用于接收加压流体并将加压流体分成三部分。 加压流体的第一部分被引导向下以侵入被钻出的材料以从切割锥体的附近拾取并除去灰尘和切屑。 加压流体的第二流动被向上引导以从钻孔去除灰尘和切割锥体。 第三流体流动通过切削锥体轴承，以在钻孔操作期间冷却轴承。 存储装置还设置在壳体内，用于接收和存储润滑流体的供应，润滑流体通过分配管道流到切割锥体轴承用于其润滑。
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公开(公告)号：US4421184A
公开(公告)日：1983-12-20
申请号：US327525
申请日：1981-12-04
Applicant: John M. Mullins
Inventor： John M. Mullins
Abstract: An earth boring bit of the air cooled bearing type has features to improve cleaning of the borehole. The bit has three bit legs, each with a depending bearing pin that receives a rotatable cutter. Bearings are located between the bearing pin and the cutter. Passages communicate drilling fluid from the drill string to the bearings. A slot between the bit leg and the backface of the cutter enables air to be discharged from the bearing pin into the borehole. The portion of the slot on the lower side of the bearing pin is greater in cross-sectional flow area than the portion on the upper side. The portion of the slot on the lower side exposes the outer ends of the roller bearings to the borehole.
Abstract translation: 空气轴承类型的地面钻头具有改善钻孔清洁的特点。 该钻头有三个位的支脚，每个都有一个可靠的轴承销，可以接收可旋转的切割器。 轴承位于轴承销和切割器之间。 通道将钻柱中的钻井液传递到轴承。 位刀和刀片背面之间的槽口使得空气能够从轴承销排出到钻孔中。 轴承销下侧的槽部分的横截面积大于上侧的部分。 下侧的槽部分将滚子轴承的外端暴露于钻孔。
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公开(公告)号：US4219087A
公开(公告)日：1980-08-26
申请号：US4403
申请日：1979-01-18
Applicant: Gary R. Johnson
Inventor： Gary R. Johnson
IPC: E21B7/28 , E21B10/18 , E21B10/23 , E21B10/24 , E21B10/34 , E21B17/18 , E21B21/00 , E21B21/10 , E21B21/12 , E21B21/16 , E21C7/06
CPC classification number: E21B21/12 , E21B10/345 , E21B7/28
Abstract: The method is disclosed for drilling a pilot hole and subsequently enlarging the pilot hole in earth formation. A dual concentric pipe string is used for circulating air downwardly through the outer pipe, through a pilot bit and upwardly through the bore hole outside the pipe string to bail cuttings, during drilling of the pilot hole. The air pressure expands the cutters of an expansible bit while a milited portion of the air supplied cools the cutters. After the cutters are fully expanded, additional air is utilized to clean and cool the cutters. Air is returned through the inner pipe of the dual concentric pipe string. A venturi device is utilized to induce return flow through the inner pipe during enlargement of the hole and to vacuum residue when enlargement is completed. The dual concentric pipe string is made up of lengths of pipe providing threaded, sealed joints.
Abstract translation: 公开了用于钻探导孔并随后在地层中扩大引导孔的方法。 双重同心管柱用于在穿过导向孔的钻孔期间将空气向下循环通过外管，通过导向钻头并向上穿过管柱外部的钻孔。 空气压力使可膨胀钻头的切割器膨胀，而供应的空气的一部分冷却刀具。 在刀具完全膨胀后，使用额外的空气来清洁和冷却刀具。 空气通过双重同心管柱的内管返回。 当扩大孔时，利用文丘里装置引导通过内管的回流，并且在放大完成时产生减压。 双重同心管柱由提供螺纹密封接头的管道长度组成。
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Patent Agency Ranking
公开(公告)号：US3105563A
公开(公告)日：1963-10-01
申请号：US4112960
申请日：1960-07-06
Applicant: SHELL OIL CO
Inventor： IZAAK HAVENAAR
CPC classification number: E21B10/23 , E21B21/002
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公开(公告)号：US2329745A
公开(公告)日：1943-09-21
申请号：US36124040
申请日：1940-10-15
Applicant: REED ROLLER BIT CO
Inventor： CROOK WILLIAM M
CPC classification number: E21B21/002 , E21B10/23
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公开(公告)号：US09822589B2
公开(公告)日：2017-11-21
申请号：US14561670
申请日：2014-12-05
Applicant: ATLAS COPCO SECOROC LLC
CPC classification number: E21B10/23 , B01D45/06 , E21B21/002
Abstract: An air/water separator including a first hollow member configured to receive a flow including an air and water mixture and a second hollow member configured to receive the flow from the first hollow member. An exit of the first hollow member extends into an opening of the second hollow member such that the exit of the first hollow member axially overlaps the opening of the second hollow member, thereby creating a first flow path from the interior of the first hollow member to the outside of the second hollow member including two turns about the exit of the first hollow member and opening of the second hollow member, and a second flow path from the first hollow member through the second hollow member.
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公开(公告)号：US20170254151A1
公开(公告)日：2017-09-07
申请号：US15506833
申请日：2015-08-24
Applicant: SANDVIK INTELLECTUAL PROPERTY AB
Inventor： Karl-Oskar FINNMAN
CPC classification number: E21B10/23 , E21B10/08 , E21B10/18 , E21B10/22 , E21B10/24 , E21B2010/225 , E21B2010/243
Abstract: A rotary drill tool for cutting rock includes at least one journal leg mounting a spindle and a respective rotary cone cutter. The spindle includes a plurality of fluid distribution passageways arrnaged to provide a supply of a cooling and cleaning fluid to the bearing assembly. Vent holes are provided through the cutter to allow an exhaust flow of fluid and an annular seal is provided at a base region of the spindle to maintain a positive fluid pressure within the cutter cavity to prevent dust and dirt ingress.
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公开(公告)号：US4516640A
公开(公告)日：1985-05-14
申请号：US559483
申请日：1983-12-08
Applicant: Harry L. Karlsson
Inventor： Harry L. Karlsson
Abstract: The present invention relates to an improved rotary drill bit having a bit body with at least one bearing pin attached thereto for rotatably carrying a roller cutter over a bearing system. The bearing system includes at least a forward bearing and a rear bearing with at least one inflow passage provided in the bit body for supplying fluid through the passage to the rear bearing during operation of the bit for flushing and for cooling of the rear bearing. The passage terminates in the bearing system ahead of a forward end of the rear bearing between an intermediate sealing arrangement and an annular outlet gap provided between the bit body and the roller cutter. The bearing pin includes a flange for axially fixing a forward end of the rear roller bearings with the inflow passage preferably terminating on the periphery of the flange. The sealing arrangement preferably engages a forward radial surface of the flange on the bearing pin. In accordance with a further aspect of the present invention, a particular sealing arrangement is provided which more effectively seals the forward bearing space from the rear bearing space. Further, the arrangement of the various elements of the bearing system are adapted to minimize the amount of space required.
Abstract translation: 本发明涉及一种改进的旋转钻头，其具有钻头本体，其具有附接到其上的至少一个轴承销，用于可旋转地将滚子切割器支承在轴承系统上。 所述轴承系统至少包括前轴承和后轴承，所述至少一个流入通道设置在所述钻头体中，用于在钻头的操作期间将流体通过所述通道供给所述后轴承，用于所述钻头的冲洗和所述后轴承的冷却。 该通道在中间密封装置和设置在钻头体和滚子切割器之间的环形出口间隙之间的后轴承的前端之前终止于轴承系统。 轴承销包括用于轴向固定后滚子轴承的前端的凸缘，其中流入通道优选地终止在凸缘的周边上。 密封装置优选地与轴承销上的凸缘的向前的径向表面接合。 根据本发明的另一方面，提供了一种特别的密封装置，其更有效地将前轴承空间与后轴承空间密封。 此外，轴承系统的各种元件的布置适于最小化所需的空间量。
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