• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    EARTH-BORING DRILL BITS The invention relates to the design of earth borehole drill bits employing shaped preform cutters containing hard abrasive materials such as diamonds.
    公开号:SU946410A3
    申请号:SU772505702
    申请日:1977-07-11
    公开日:1982-07-23
    发明作者:С.Раули Дэвид；Х.Волкер Брюс；М.Филдер Кой
    申请人:Кристенсен Инк (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a rock cutting tool, namely to drill bits reinforced with natural or artificial diamonds.
    Known drill bit containing 5 body with a working head reinforced with wear-resistant inserts made in the form of disks, the axes of which are inclined with respect to the reinforced surface at different angles [1]. t0
    The disadvantage of this bit is its low durability due to the quick exit of wear-resistant inserts from the system. This is due to poor-quality cleaning of the bottom of the sludge, which leads to overheating of the inserts.
    The closest in technical essence and the achieved result is a drill bit containing a body with a central channel and a working head made of 20 wear-resistant material with flushing channels and sludge-removing grooves reinforced with calibrating and cutting elements, the latter of which are installed with a negative angle of inclination along the rear side flushing channel edges [2J.
    A disadvantage of the known bit is that in case of failure of part of the cutting elements, the bit is replaced by another, although a significant part of the cutting elements is still suitable for work. All this reduces the durability of the bit.
    Nel invention - improving the durability of the bit.
    This goal is achieved by the fact that the working head has recesses and support protrusions for fixing the dry elements made in the form of a holder, the front edge of which is reinforced with diamonds, and the rear edge is installed with the possibility of interaction with the support]> · protrusion, which can be made with - '' variable height, decreasing in the direction opposite to the direction of rotation of the bit.
    In FIG. 1 shows a bit, a General view in section; in FIG. 2 - view from the side of the working end; in FIG. 3 - cutting element; in FIG. 4 - section AA in FIG. 3;
    No. 946410 4 in FIG. 5 - part of the end face of the working head; in FIG. 6 - cutting element in the form of a disk; in FIG. 7 is a section BB in FIG. 6.
    Drilling long contains the housing 1 and the working head 2, made of 5 wear-resistant material 3, for example, of tungsten carbide on a metal binder. Working reinforced cutting head and the metering elements 4 and 5. The cutting elements 4 are formed as U holder having a shape of a rod 6 or the disc 7, the leading edge of which is reinforced with natural or artificial diamonds 8 and the rear face is arranged to mutually 15-interaction with supporting protrusion, the function of which is performed by the walls of the socket 9 for rod cutting. cells (FIG. 3) and the protrusion 10 (fig- 5) of variable height which diminishes in direction 20 opposite direction anti-bit rotation to the cutting disc elements,
    The housing 1 is made with a Central channel 11, which is connected to the flushing channels 12 and 13 of the working head 25 , along the rear edge of which with a negative angle of inclination 6L equal to
    4-20, cutting elements are installed 4. For the removal of the destroyed rock on the side surface of the working head drinkings — 30 yen sludge vents 14.
    The cutting elements 4 are mounted, for example, by solder in pre-stamped recesses 10 and 15 of the working head 2, having a convex-concave shape. Elements 35 are located on the steps 16 in a spiral and are oriented in a certain way with respect to the bottom of the well. This is achieved by the implementation of the nest 10 and the shank of the rod 6 with mating bald-40s 17 and 18, preventing the rotation of the cutting elements 4. When using disk-shaped holders 7, their orientation is provided by the recesses: 15. In the radial direction, the elements 4 are installed in staggered to ensure complete overlapping of the bottom of the well. In order to remove the destroyed rock, the cutting elements can be installed at an acute negative angle in the horizontal plane. The angle p> is 1-10 ° (Fig. 5). The central concave part of the bit is additionally reinforced with diamonds.
    The bit works as follows. Under the action of axial load and torque, the cutting elements 4 destroy the bottom of the well. The destroyed rock by the flushing fluid supplied through the channels 12 and 13 is discharged through the sludge vents 14 into the annulus. The walls of the well are treated with calibrating elements 5.. The proposed installation scheme of the cutting elements allows to eliminate tensile forces and load them mainly with compressive forces. The implementation of the cutting elements in the form of holders provides a quick replacement of worn cutting elements, i.e., the bit can be quickly repaired. The use of support ledges allows you to remove shock loads and thereby increase the reliability of the cutting elements. All this as a whole contributes to the increase of bit resistance.
    权利要求:
    Claims (2)
    [1]
    (54) BORING DRILL The invention relates to a porous destructive tool, namely to drill bits reinforced with natural or artificial diamonds. Known drill bit, comprising a housing with a working head, reinforced with wear-resistant inserts, made in the form of discs, the axes of which are inclined with respect to the reinforced surface at different angles 1. The disadvantage of this bit is low durability due to the rapid release of wear-resistant inserts. This is due to poor cleaning of the sludge, which leads to overheating of the inserts. The closest to the technical essence and the achieved result is a drill bit containing a housing with a central channel and made of wear-resistant material with flushing channels and slurry-removing slots reinforced calibrating and cutting elements, the latter of which are installed with a negative angle of inclination along the rear side edge of the flushing channels 2j. The disadvantage of the known bit is that when the part of the cutting elements is out of operation, the bit is replaced by another one, although a considerable part of the cutting elements is still suitable for work. All this reduces the resistance of the bit. The purpose of the invention is to increase the durability of the bit. The goal is achieved by the fact that the working head has recesses and protrusions for securing the cutting elements made in the form of a holder, the front edge of which is reinforced with diamonds, and the rear one is installed with the possibility of can be filled with a variable height, reduced in the direction opposite to the direction of rotation of the bit. FIG. 1 shows a chisel, a general view in section; in fig. 2 - view from the side of the working end; in fig. 3 - cutting element; in FIG. 4 - section А-А on fkg. 3; 394 in FIG. 5 - part of the end face of the working head PA of FIG. 6 - cutting element in the form of a disk; in fig. 7 is a section BB in FIG. The drill bit comprises a body 1 and a working head 2 made of wear resistant material 3, for example, tungsten carbide on a metal bond. The cutting head is reinforced with cutting and calibrating elements 4 and 5, respectively. Cutting elements 4 are made in the form of a shell having the shape of a rod 6 or disc 7, the front edge of which is reinforced with natural or artificial diamonds 8, and the back face is installed with the possibility of action with a support lug, whose function is performed by the walls of the socket Q for core cutting elements (Fig. 3). And the protrusion 10 (Fig. 5) of the variable COTA, decreasing in the direction opposite to the direction of rotation of the bit, The body 1 is made with a central channel 11, which is connected to the lumening channels 12 and 13 of the working head, along the rear edge of which with a negative tilt angle oL equal to 4-20, cutting elements 4 are installed. To remove broken rock on the side surface of the working heads are made by slug-withdrawing grooves 14. elements 4 are fixed, for example, by soldering in advance otschtampov grooves 10 and 15 of the working head 2, which has a convex-concave shape. Elements 4 are arranged in steps 16 in a spiral and are oriented in a certain way with respect to the ratio “o to the bottom of the well”. This is achieved by making the socket 10 and the shank of the rod 6 with matching lips 17 and 18, which prevent the cutting elements 4 from turning. When using disc-shaped holders 7, their orientation is provided by the notches 15. In the radial direction, the elements 4 are installed in a staggered manner wells. In order to remove the destroyed rock, the cutting elements can be installed under a sharp glow angle in the horizontal DPOskosti. The magnitude of the margin pi is (Fig. 5); the central concave part of the bit is further reinforced with diamonds. 104 Chisel works as follows. Under the action of axial load and torque, the cutting elements 4 destroy the bottom hole. The ruptured rock by the flush fluid supplied through the channels 12 and 13 is carried through the slurry slots 14 into the annular space. The walls of the well are machined with calibrating elements. 5.. The proposed installation scheme for cutting elements eliminates tensile forces and loads them mainly with compressive forces. The implementation of the cutting elements in the form of holders provides a quick replacement of worn cutting elements, ie, the bit can be quickly repaired. The use of supporting protrusions allows the removal of shock loads and thereby increase the reliability of the cutting elements. All of this generally contributes to improved bit stability. Claim 1. Boring bit, containing a central channel and made of wear-resistant material, a working t-tin with flushing channels and slotted grooves, reinforced with calibrating and cutting elements, the latter of which are installed with a negative angle of inclination along the rear lateral edge washing channels, which are distinguished by the fact that, in order to increase its durability, the working head has recesses and supporting protrusions for fastening the cutting elements made in the form of a holder, the leading edge of which reinforced with diamonds, and the back is installed with the ability to interact with the supporting ledge. . 2. A chisel according to claim 1, characterized in that the supporting protrusions are made with a variable height, decreasing in the direction opposite to the direction of rotation of the chisel. Sources of information taken into account during the examination 1. USSR author's certificate No. 592956, cl. E 21 V 9/02, 1976.
    [2]
    2. US Patent No. 37093О8, cl. 175-329, published. 1973 (prototype).
    A-A
    FIG. if
    类似技术:
    公开号 | 公开日 | 专利标题
    SU946410A3|1982-07-23|Boring bit
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    US4499958A|1985-02-19|Drag blade bit with diamond cutting elements
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    US3126067A|1964-03-24|Roller bit with inserts
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    US4106823A|1978-08-15|Borehole contacting apparatus for bottom hole assembly
    US3727705A|1973-04-17|Drill bit with improved gage compact arrangement
    GB2294712A|1996-05-08|Rotary drill bit with primary and secondary cutters
    US4380271A|1983-04-19|Earth auger with removable cutting tooth support structure
    US20020066600A1|2002-06-06|Rotary tools or bits
    GB2190120A|1987-11-11|Improvements in or relating to rotary drill bits
    RU2345209C1|2009-01-27|Blade reamer
    RU1803518C|1993-03-23|Diamond drill bit
    同族专利:
    公开号 | 公开日
    AU2639577A|1979-01-04|
    NL172477B|1983-04-05|
    NO149181B|1983-11-21|
    CA1074779A|1980-04-01|
    JPS5614832B2|1981-04-07|
    JPS539205A|1978-01-27|
    MX144441A|1981-10-15|
    AU504704B2|1979-10-25|
    FR2358537B1|1983-03-25|
    GB1556562A|1979-11-28|
    DE2730602A1|1978-01-19|
    DE2730602C3|1981-10-29|
    NO149181C|1984-02-29|
    NL7706233A|1978-01-16|
    NO771015L|1978-01-13|
    NL172477C|1983-09-01|
    FR2358537A1|1978-02-10|
    DE2730602B2|1981-02-05|
    BE856697A|1978-01-11|
    BR7704531A|1978-05-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EA009157B1|2005-09-30|2007-10-26|Амазонен-Верке Х. Драйер Гмбх Унд Ко. Кг|Seed sowing machine|
    RU2615660C1|2016-02-16|2017-04-06|Товарищество С Ограниченной Ответственностью "Научно-Внедренческий Центр Алмас"|Drilling bit|US1388490A|1920-09-18|1921-08-23|John R Suman|Rotary earth-boring drill|
    US1506119A|1923-02-01|1924-08-26|Ingersoll Rand Co|Core-drill bit|
    DE686029C|1938-02-03|1939-12-30|Edelstahlwerke Akt Ges Deutsch|Multi-blade rotary drill with cutting blades made of Hertmetall|
    DE878477C|1939-05-17|1953-06-01|Diamantwerkzeugfabrik Rudolf H|Stone working tool, in particular stone saw, stone drill, turning tool or the like.|
    US2381415A|1943-11-19|1945-08-07|Jr Edward B Williams|Drill bit|
    FR1340987A|1962-09-15|1963-10-25|Turbodrill Internat Corp|Drill bit for rock drilling|
    US3311181A|1964-05-04|1967-03-28|John B Fowler|Bi-metal drilling tooth|
    US3709308A|1970-12-02|1973-01-09|Christensen Diamond Prod Co|Diamond drill bits|
    DE2113577A1|1971-03-20|1972-09-21|Richard Karnebogen|Percussion bit for drilling rock and the like.|
    US3825083A|1972-02-02|1974-07-23|Christensen Diamond Prod Co|Drill bit and stabilizer combination|
    DE2327379C2|1973-05-29|1982-12-30|Shell Internationale Research Maatschappij B.V., 2501 's-Gravenhage|Rotary drill bit for rock drilling with diamonds as cutting elements|
    GB1466036A|1974-02-13|1977-03-02|Sabre D R|Rotary earth-cutting tools|US4098363A|1977-04-25|1978-07-04|Christensen, Inc.|Diamond drilling bit for soft and medium hard formations|
    ZA781154B|1978-02-28|1979-09-26|De Beers Ind Diamond|Abrasive bodies|
    GB2060735B|1979-10-16|1983-06-22|Christensen Inc|Diamond drill bits for drilling bore holes in earth formations|
    US4453605A|1981-04-30|1984-06-12|Nl Industries, Inc.|Drill bit and method of metallurgical and mechanical holding of cutters in a drill bit|
    US4505342A|1982-11-22|1985-03-19|Nl Industries, Inc.|Drill bit|
    US4538690A|1983-02-22|1985-09-03|Nl Industries, Inc.|PDC cutter and bit|
    US4593777A|1983-02-22|1986-06-10|Nl Industries, Inc.|Drag bit and cutters|
    JPS5998982U|1983-07-26|1984-07-04|
    JPH0119519B2|1984-05-21|1989-04-12|Sumitomo Electric Industries|
    US20050133276A1|2003-12-17|2005-06-23|Azar Michael G.|Bits and cutting structures|
    JP5800587B2|2011-06-16|2015-10-28|株式会社斜面対策研究所|Drilling device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US70442476A| true| 1976-07-12|1976-07-12|
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