| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | 암반굴착용비트의 파쇄롤러 | KR2020000006063 | 2000-03-04 | KR200198192Y1 | 2000-10-02 | 송재경 |
| 본 고안은 터널공사나 건축물기초공사시 지반을 뚫는 굴착기의 끝부분에 설치되어 굴착공사 진행중 나타나는 암반을 파쇄하여 굴착하는 암반굴착용비트의 파쇄롤러에 관한 것으로, 특히 암반을 파쇄하여 굴착하는 암반굴착용비트를 구성하되, 상기 파쇄롤러 내부에 작동구가 숨쉬기운동을 하면서 압력을 분산시키는 기존의 압력분산라인외에 베어링슬리브에 내결쪽으로 여러개의 관통홀을 가지는 또다른 압력분산라인을 형성하고 이에 오링을 결합구성하여서 상기 파쇄롤러의 회전시 발생하는 내부압력을 관통홀을 통해 여러곳으로 분산되도록 함으로써, 빠른 속도로 팽창압력을 소멸시키도록 하여 내부를 항상 정상압력으로 복귀토록 함으로써 굴착작업시 상기 파쇄롤러내부에 설치한 베어링에 물 또는 미세한 돌가루등이 침투하지 못하도록 함� �로써, 베어링의 회전동작을 원활히 하고 고장이 없도록 함은 물론, 상기 암반굴착용비트를 구성하는 드럼의 저부에 설치된 축받이에 고정설치되며 파쇄롤러의 롤러몸체가 축 결합되는 고정축의 사각부에 기존의 볼트공과 직각이 되도록 보조볼트공을 형성하고 볼트를 삽입하여 파쇄롤러의 양단이 더욱 견고히 고정설치됨으로써, 따라서, 암반굴착작업시 상,하,좌,우의 충격으로부터 견디는 힘이 강해져 롤러몸체 고정축의 마모나 훼손이 크게 방지되도록 하며,그리고, 롤러몸체 외연을 중앙이 배가 나오도록 둥글게 구성하여 굴착작업시 바닥면에 배가 나온 중앙부분부터 닿도록 하여 파쇄롤러들이 옆으로 이탈하려는 현상을 최대한 방지되도록 함으로써 수직으로 곧장 굴착이 되도록 하는등 결과적으로 파쇄롤러의 굴착작업효율 및 사용수명을 극대 화 한 것이다. | ||||||
| 182 | DRILLING SYSTEMS AND HYBRID DRILL BITS FOR DRILLING IN A SUBTERRANEAN FORMATION AND METHODS RELATING THERETO | EP14821955.3 | 2014-12-05 | EP3077614B1 | 2018-05-02 | CLAUSEN, Jeffery Ronald |
| Drill bits and methods relating thereto are disclosed. In an embodiment, the drill bit includes a body having a plurality of legs each having a lower section that has a leading surface and a trailing surface. A plurality of cone cutters are each rotatably mounted to the lower section of one of the legs, each having a cone axis, and including a first plurality of cutter elements arranged about the cone axis such that each is shear the formation when the body is rotated about the bit axis. | ||||||
| 183 | COMPOSITE DRILL BIT | EP11806308.0 | 2011-07-15 | EP2594729B1 | 2017-09-06 | YANG, Ying Xin; CHEN, Lian; LIN, Min; PEI, Zhu; REN, Hai Tao |
| 184 | HYBRID DRILL BITS HAVING INCREASED DRILLING EFFICIENCY | EP12849014 | 2012-11-15 | EP2780532A4 | 2016-01-27 | ZAHRADNIK ANTON F; PESSIER ROLF C; ROTHE MITCHELL A; NGUYEN DON Q; CEPEDA KARLOS; DAMSCHEN MICHAEL S; BUSKE ROBERT J; HOWARD JOHNATHAN; VEMPATI CHAITANYA K |
| A hybrid earth-boring drill bit (611), comprising a bit body (613) having a face, wherein said hybrid earth-boring drill bit (611) comprises roller cone support arms (617, 619) and fixed blades (623, 625) extending radially outward from ends located proximate a central axis of the bit body, wherein the further comprise a saddle mount assembly (660) proximate the central axis of the bit body and the roller cones (629, 631) are rotatably mounted on spindles (670) projecting outwardly from the saddle mount assembly (660). | ||||||
| 185 | Rock bit tip and rock bit | EP12195889.6 | 2012-12-06 | EP2740884B1 | 2015-02-25 | Finnman, Karl-Oskar |
| 186 | EXTRUDED POLYMER FOAMS CONTAINING ESTERS OF A SUGAR AND A BROMINATED FATTY ACID AS A FLAME RETARDANT ADDITIVE | EP09741533.5 | 2009-10-15 | EP2387578B1 | 2014-06-11 | HULL, John, W., Jr.; KRUPER, William, J.; ROWLANDS, Justin, Craig |
| 187 | SYSTEM AND METHOD FOR LEG RETENTION ON HYBRID BITS | EP12704599.5 | 2012-02-07 | EP2673451A2 | 2013-12-18 | RICKS, Gregory L.; FELDERHOFF, Floyd C.; PESSIER, Rudolf Carl |
| An earth boring drill bit comprising: one or more legs; a bit body having a blade and a slot for receiving the leg; and one or more wedge between the leg and the slot fixing the leg within the slot. The slot may have two parallel sidewalls with one of the sidewalls forming an acute angle and the other forming an obtuse angle. The wedge may be secured immediately next to the obtuse angled sidewall. The wedge may have two obtuse angled sides. One or more bolts through each wedge may secure both the wedge and the leg to the bit body. In a preferred embodiment, an obtuse angled sidewall of the wedge is preferably secured immediately next to an acute angled side of the leg. | ||||||
| 188 | COMPOSITE DRILL BIT | EP11806308.0 | 2011-07-15 | EP2594729A1 | 2013-05-22 | YANG, Ying Xin; CHEN, Lian; LIN, Min; PEI, Zhu; REN, Hai Tao |
A composite drill bit comprises: a drill bit body (1), a scraping-wheel (2), the drill bit body (1) further comprises a bit leg (3). The scraping-wheel (2) is mounted for rotation on the corresponding journal (6) of the bit leg (3), an outer-ring (4) is deployed on the scraping-wheel (2), wherein: the angular deflection α of the scraping-wheel (2) is in the range of 20° ≤ |α| ≤ 90°, the fixed cutting unit (8) with fixed cutters (8a) fixed thereon is deployed on the drill bit body (1). In the present invention, cutters on the scraping-wheel break rock by means of successive scraping, forming a cross-cutting area on the bottomhole accompanied by the cutters on the fixed cutting unit, thus achieving high rock-breaking efficiency, even wear, high cooling performance, and a longer service life for the cutters, bearings and the drill bit. |
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| 189 | ROTARY DRILL BIT | EP11806310.6 | 2011-07-15 | EP2594728A1 | 2013-05-22 | YANG, Ying Xin; CHEN, Lian; LIN, Min; PEI, Zhu; REN, Hai Tao |
A scraping-wheel drill bit comprising a drill bit body (1), a scraping-wheel (2), the drill bit body (1) further comprises a bit leg (3). The scraping-wheel (2) is mounted for rotation on the corresponding journal (6) of the bit leg (3), an outer-ring (4) is deployed on the scraping-wheel (2), wherein: the angular deflection α of the scraping-wheel (2) is in the range of 20° ≤ |α| ≤ 90°. Cutters on the scraping-wheel break rocks by means of successive scraping, thus achieving high rock-breaking efficiency, even wear, high cooling performance, and a longer service life for the cutters, bearings and the drill bit. |
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| 190 | ROLLER CONE BIT PROVIDED WITH ANTI-TRACKING CUTTING ELEMENT SPACING | EP08797943.1 | 2008-08-15 | EP2188485B1 | 2012-03-21 | RICKS, Gregory, L.; LEDGERWOOD, Leroy, William |
| Embodiments of an apparatus for predicting and reducing tracking by roller cone bits by adjusting compact spacing are disclosed. Different pitches between adjacent compacts or teeth provide a cone row that is substantially less likely to track. A given row on a cone may include compacts that are arrayed at a single pitch in a contiguous group for approximately half of the row. The remaining approximately half of the row includes alternating pitches. This configuration enables anti-tracking behavior without very wide spaces and consequent breakage and wear seen in prior art anti-tracking pitch schemes. | ||||||
| 191 | EXTRUDED POLYMER FOAMS CONTAINING ESTERS OF A SUGAR AND A BROMINATED FATTY ACID AS A FLAME RETARDANT ADDITIVE | EP09741533.5 | 2009-10-15 | EP2387578A1 | 2011-11-23 | HULL, John, W., Jr.; KRUPER, William, J.; ROWLANDS, Justin, Craig |
| An ester of a sugar and a brominated fatty acid is a useful FR additive for combustible polymers. The brominated FR additives unexpectedly are stable at the extrusion temperatures, and provide excellent flame retardancy to the combustible polymers. | ||||||
| 192 | BIT CONE WITH HARDFACED NOSE | EP09807332.3 | 2009-08-14 | EP2318638A2 | 2011-05-11 | FELDERHOFF, Floyd, C.; FREEMAN, Mark, A.; MASSEY, Alan, J.; GILMORE, Kenneth, E.; STANFIELD, Glen |
| A drill bit for drilling a wellbore, the drill bit having a cutter which has tungsten carbide inserts and a spear point. The spear point has a neck that joins a smooth portion of the cutter and blades that extend from the neck and converge to an apex. The blades define valleys or spaces between them. A layer of hardfacing is applied to the entire spear point including the interim spaces and the neck. | ||||||
| 193 | ARRANGEMENT OF CUTTING ELEMENTS ON ROLLER CONES FOR EARTH BORING BITS | EP09733781.0 | 2009-04-23 | EP2304161A2 | 2011-04-06 | RICKS, Gregory, L. |
| A method for determining an optimized arrangement of cutting elements about a roller cone bit is provided. Also provided is a roller cone drill bit having cutting elements that are arranged according to a computerized optimization routine. | ||||||
| 194 | Roller cone drill bit, method of designing the same and rotary drilling system | EP03021139.5 | 1999-08-31 | EP1371811B1 | 2011-03-30 | Chen, Shilin |
| 195 | A ROCK DRILL BIT ASSEMBLY | EP04726353.8 | 2004-04-07 | EP1616072B1 | 2007-06-06 | HOLMGREN, Lars |
| A drill bit assembly for direct removal of rock by means of a rotatable bit assembly (5) that includes a plurality of cutters or choppers (7). According to the invention, a number of cutters (7) are so disposed in relation to each other on the bit assembly (5) that a subsequent cutter (7b), seen in the direction of rotation, will engage an edge created by the action of a preceding cutter (7a). | ||||||
| 196 | Method of designing a roller cone bit | EP04025562.2 | 1999-08-31 | EP1500783A3 | 2006-04-12 | Chen, Shilin |
Disclosed herein is a method of designing a roller cone bit, comprising the steps of:
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| 197 | Method of designing a roller cone bit | EP04025561.4 | 1999-08-31 | EP1500782A3 | 2006-04-12 | Chen, Shilin |
Disclosed herein is a method of designing a roller cone bit, comprising the steps of:
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| 198 | Roller-cone bits, systems, drilling methods, and design methods with optimization of tooth orientation | EP04025232.2 | 1999-08-31 | EP1498572A3 | 2006-04-12 | Chen, Shilin |
Disclosed herein is a method for optimising drilling performance of a roller cone drill bit, comprising simulating drilling with the bit in a selected earth formation to determine at least one drilling performance parameter, adjusting, an orientation of at least one non-axisymmetric cutting element on the bit, repeating the simulating the drilling and determining the at least one performance parameter, and repeating the adjusting and simulating the drilling until the at least one performance parameter is determined to be at an optimum value.
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| 199 | ROTARY CONE DRILL BIT WITH MACHINED CUTTING STRUCTURE AND METHOD | EP99933943.5 | 1999-07-09 | EP1097288B1 | 2006-03-15 | SAXMAN, William, C. |
| A rotary cone drill bit is provided with at least one cutter cone assembly having a machined cutting structure which will maintain an effective cutting profile despite abrasion, erosion and/or wear of the associated cutting elements. The machined cutting structure may be formed on a generally cone shaped blank by a series of lathe turns and/or plunge cuts. The cutting elements may be formed with an aggressive cutting profile. For one application, the crest of each cutting element has the general configuration of an ogee curve. A layer of hardfacing material may be applied over all or selected portions of the machined cutting structure. | ||||||
| 200 | A ROCK DRILL BIT ASSEMBLY | EP04726353.8 | 2004-04-07 | EP1616072A1 | 2006-01-18 | HOLMGREN, Lars |
| A drill bit assembly for direct removal of rock by means of a rotatable bit assembly (5) that includes a plurality of cutters or choppers (7). According to the invention, a number of cutters (7) are so disposed in relation to each other on the bit assembly (5) that a subsequent cutter (7b), seen in the direction of rotation, will engage an edge created by the action of a preceding cutter (7a). | ||||||
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