CN103556948A - Churn compaction drill bit - Google Patents
Churn compaction drill bit Download PDFInfo
- Publication number
- CN103556948A CN103556948A CN201310559444.4A CN201310559444A CN103556948A CN 103556948 A CN103556948 A CN 103556948A CN 201310559444 A CN201310559444 A CN 201310559444A CN 103556948 A CN103556948 A CN 103556948A
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- bit body
- hard alloy
- teeth
- alloy spherical
- lower contact
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- 238000005056 compaction Methods 0.000 title 1
- 239000000956 alloy Substances 0.000 claims abstract description 42
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 42
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 238000001125 extrusion Methods 0.000 claims description 10
- 244000309464 bull Species 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 19
- 239000002689 soil Substances 0.000 abstract description 9
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 abstract 1
- 229910052731 fluorine Inorganic materials 0.000 abstract 1
- 239000011737 fluorine Substances 0.000 abstract 1
- 238000005755 formation reaction Methods 0.000 abstract 1
- 238000004080 punching Methods 0.000 abstract 1
- 241000656145 Thyrsites atun Species 0.000 description 8
- 239000011435 rock Substances 0.000 description 6
- 239000002893 slag Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
本发明公开了一种旋冲挤密钻头，是由第一硬质合金球齿、钻头体、密封罩、下接头、砧座、回程弹簧、第二硬质合金球齿、密封圈、第三硬质合金球齿构成，钻头体采用单头或多头锥形螺旋切削刃，在锥体顶端及表面镶焊第一、第二和第三硬质合金球齿；钻头体底部径向布置排气孔，排气孔用于冷却钻头刃齿及钻头体外表面；砧座与钻头体分体设计，采用梯形螺纹联接，与回转工况良好适应；回程弹簧使砧座在无外部载荷情况下快速复位，配合冲击器保持连续反冲击工况；密封罩与钻头体过盈配合并焊接，密封罩与下接头之间设置氟橡胶密封圈；本发明可配合冲击矛实现旋冲挤密钻进，普遍适用于冻土、沙土、砂卵石层等地层，并可获得较高钻进效率和良好的钻孔质量。
The invention discloses a rotary punching and compacting drill bit, which is composed of a first hard alloy button, a drill body, a sealing cover, a lower joint, an anvil, a return spring, a second hard alloy button, a sealing ring, a third It is made of cemented carbide button. The drill body adopts single-head or multi-head conical helical cutting edge. The first, second and third carbide buttons are welded on the top of the cone and on the surface; the bottom of the drill body is radially arranged for exhaust Holes and exhaust holes are used to cool the drill bit teeth and the outer surface of the drill bit; the anvil and the drill body are designed separately, and are connected by trapezoidal threads, which are well adapted to the rotary working conditions; the return spring makes the anvil return quickly without external load , cooperate with the impactor to maintain continuous anti-impact working conditions; the sealing cover and the drill bit body are interference fit and welded, and a fluorine rubber sealing ring is arranged between the sealing cover and the lower joint; It is suitable for formations such as frozen soil, sandy soil, and sandy pebble layer, and can obtain high drilling efficiency and good drilling quality.
Description
Technical field
The present invention relates to a kind of extrusion sealing drill bit, relate in particular to a kind of compacted extrusion sealing drill bit that spins creeping into of impactor impact rotating that coordinates, applicable to stratum such as frozen soil, sandy soil, sand pebble layers.
Background technology
The general compacted hole creating technology of impact pike is not under revolving conditions, drilled strata to be applied to impact load at impact pike, realizes drilling and forming hole.Compare with the compacted hole creating technology of impact pike, the compacted drilling technology of impact rotating, in drilling process, has not only applied impact force to drill bit, return drill bit and apply turning power, drill bit in impact force, feed under power and rotating synergy, soil is clamp-oned to stratum, drilling efficiency is high, and drilling quality is good.Traditional impact extrusion sealing drill bit body is only in impact force and feed formation drilling under power effect, and bit body adopts stepped project organization conventionally, guarantees to impact compacted creeping into; Between bit body and anvil block, by straight pin, connect, complex structure, reliability is low.The said structure that impacts extrusion sealing drill bit is not suitable with rotary drilling operating mode, in utilizing impact pike to carry out that impact rotating is compacted to creep into, cannot apply.
Summary of the invention
For the problems referred to above, the invention provides a kind of extrusion sealing drill bit that spins that is applicable to the compacted drilling condition of impact rotating.
The present invention is by the first hard alloy spherical-teeth, bit body, seal closure, lower contact, anvil block, retracting spring, the second hard alloy spherical-teeth, sealing ring, the 3rd hard alloy spherical-teeth forms, bit body inside has connecting of trapezoidal thread and anvil block, lower contact is enclosed within on anvil block and with bit body and docks, seal closure is enclosed within bit body and lower contact periphery, between seal closure and lower contact, sliding ring is set, retracting spring is positioned at the annulus that anvil block and lower contact form, the first hard alloy spherical-teeth, the second hard alloy spherical-teeth and the 3rd hard alloy spherical-teeth welding-on are on the surface of bit body, the first hard alloy spherical-teeth is arranged in center, bit body end, the second hard alloy spherical-teeth is arranged in bit body spiral cutting sword surface, the 3rd hard alloy spherical-teeth circumferential arrangement is in the end of bit body, the afterbody of lower contact is for connecting the bottom of impactor, the helicoid of bit body has many spiral solid-holding grooves and a plurality of steam vent, and steam vent arranges between two parties in spiral solid-holding groove, and steam vent is communicated with bit body central through hole, and the central through hole of bit body is communicated with the centre bore of anvil block.
The front end of described bit body is conical section, cone angle is 20-40 °, and the rear end of bit body is cylindrical section, and cutting edge is single head or bull cone-type spiral type, between the pitch of spiral solid-holding groove and the external diameter of bit body and length, have certain ratio, pitch is outside diameter 1-4 times.
Beneficial effect of the present invention:
When the extrusion sealing drill bit that spins coordinates compacted the creeping into of impact pike impact rotating, bit body surface the second hard alloy spherical-teeth is cut stratum in bit body revolution action incision; The first hard alloy spherical-teeth of bit body end and the 3rd hard alloy spherical-teeth are squeezed to sidewall by cobble, erratic boulder in stratum under impact loading again after smashing; The rock slag bits that fragmentation is got off are expelled to bit body cylindrical section by spiral solid-holding groove, and bit body cylindrical section is clamp-oned rock slag bits in hole wall stratum around, realizes compacted creeping into.The bit body of split design connects by trapezoidal thread with anvil block, and reliability is high, simple in structure, has good compliance with Turning course.The form that connects of seal closure and bit body and lower contact, can realize bit body and float, and prevents that the inner duct of impactor gas from escaping and outside rock slag bits enter impactor inside.The present invention can coordinate impact pike to realize impact, revolution, compacted creeping into, and is applicable to the stratum such as frozen soil, sandy soil, sand pebble layer, improves drilling efficiency, guarantees drilling quality.
Accompanying drawing explanation
Fig. 1 is schematic perspective view of the present invention.
Fig. 2 is front view of the present invention.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is right view of the present invention;
Fig. 5 is the partial sectional view in Fig. 4.
In figure: the 1-the first hard alloy spherical-teeth, 2-bit body, 3-seal closure, 4-lower contact, 5-anvil block, 6-retracting spring, the 7-the second hard alloy spherical-teeth, 8-sealing ring, 9-steam vent, 10-spiral solid-holding groove, the 11-the three hard alloy spherical-teeth.
The specific embodiment
Refer to Fig. 1, shown in Fig. 2 and Fig. 3, the present invention is by the first hard alloy spherical-teeth 1, bit body 2, seal closure 3, lower contact 4, anvil block 5, retracting spring 6, the second hard alloy spherical-teeth 7, sealing ring 8, the 3rd hard alloy spherical-teeth 11 forms, bit body 2 inside have connecting of trapezoidal thread and anvil block 5, lower contact 4 is enclosed within on anvil block 5 and with bit body 2 and docks, seal closure 3 is enclosed within bit body 2 and lower contact 4 peripheries, between seal closure 3 and lower contact 4, sliding ring 8 is set, retracting spring 6 is positioned at the annulus that anvil block 5 and lower contact 4 form, the first hard alloy spherical-teeth 1, the second hard alloy spherical-teeth 7 and the 3rd hard alloy spherical-teeth 11 welding-ons are on the surface of bit body 2, the first hard alloy spherical-teeth 1 is arranged in bit body 2 centers, end, the second hard alloy spherical-teeth 7 is arranged in bit body 2 spiral cutting sword surfaces, the 3rd hard alloy spherical-teeth 11 circumferential arrangement are in the end of bit body 2, the afterbody of lower contact 4 is for connecting the bottom of impactor.The helicoid of bit body 2 has many spiral solid-holding grooves 10 and a plurality of steam vent 9, and steam vent 9 is in the interior layout placed in the middle of spiral solid-holding groove 10, and steam vent 9 is communicated with bit body 2 central through holes 12, and the central through hole 12 of bit body 2 is communicated with the centre bore 13 of anvil block 5.
The front end of described bit body 2 is conical section, cone angle is 30 °, the rear end of bit body 2 is cylindrical section, cutting edge is single head or bull cone-type spiral type, between the pitch of spiral solid-holding groove 10 and the external diameter of bit body 2 and length, there is certain ratio, pitch is 1～4 times of outside diameter, the bit body of 30 ° of diameter 135mm, cone angle for example, and pitch is chosen as 500mm.In drilling process, the broken rock slag bits that get off are expelled to the cylindrical section of bit body 2 by spiral solid-holding groove 10, and the cylindrical section of bit body 2 is clamp-oned rock slag bits in hole wall stratum around, realizes compacted creeping into.
The first hard alloy spherical-teeth 1 is positioned at bit body bottom centre position; The second hard alloy spherical-teeth 7 vertical spin faces, love helicoid width is arranged between two parties, and is arranged number row along bit body axis direction; The 3rd hard alloy spherical-teeth 11 circumferential arrangement are in bit body bottom, cloth toothing as shown in Figures 4 and 5, the quantity of bottom the 3rd hard alloy spherical-teeth 11, all should be determined according to the size of broken major diameter cobble or boulder, erratic boulder apart from angle between the distance of bit body center line, ball tooth.In drilling process, surperficial the second hard alloy spherical-teeth 7 of bit body 2 is cut stratum in bit body 2 revolution action incisions; Bit body 2 end the first hard alloy spherical-teeths 1 and the 3rd hard alloy spherical-teeth 11 are squeezed to sidewall by cobble, erratic boulder in stratum under impact loading again after smashing.
Rod radial air vent 9 is arranged in described bit body 2 bottoms, and steam vent 9 is near bit body bottom, in the interior layout placed in the middle of spiral solid-holding groove 10; Steam vent quantity and size combinations can be set to
etc. several combinations, vent structure is reasonable, and quantity, size are suitable.In drilling process, Partial shrinkage air arrives bit body 2 via drilling rod and impact pike, by radial arrangement steam vent 9, discharges, interior mobile at spiral solid-holding groove 10, plays the effect of cooling bit edge tooth and bit body external surface.
As shown in Figure 3, described anvil block 5 and bit body 2 split designs, anvil block 5 adopts the alternative straight pin of acme thread to connect with bit body 2, and simple in structure, reliability is high, and has adaptability with Turning course; And described anvil block 5 closely cooperates with bit body 2, is convenient to dismounting, be convenient to safeguard, be convenient to replacing.
As shown in Figure 3, described retracting spring 6 can make anvil block 5 also can realize Rapid reset without external load in the situation that, guarantees impactor empty beating not in putting forward brill process, keeps continuous counterattack operating mode.
As shown in Figure 3, described seal closure 3, with bit body 2 interference fit the welding of its underpart; Lower contact 4 matched in clearance with its top, arrange sliding ring 8 between seal closure 3 and lower contact 4, and sealing ring 8 materials are fluorubber.The form that connects of seal closure 3 and bit body 2 and lower contact 4, can guarantee that anvil block 5 bears after piston impact load, and seal closure 3, bit body 2 and anvil block 5 slide up and down with respect to the lower contact 4 being connected with impactor, realizes bit body 2 and floats; Slipper seal structure, can prevent under impact loading, and seal closure 3, bit body 2 and anvil block 5 are when lower contact 4 is moved, and the inner duct of impactor gas escapes, and prevents that outside rock slag bits from entering impactor inside simultaneously.
The present invention is strong adaptability under impact, revolution, compacted drilling condition, and can effectively coordinating impact pike to realize frozen soil, sandy soil, sand pebble layer etc., stratum impact rotating is compacted creeps into, and drilling efficiency is high, and drilling quality is good.
Claims (3)
1. the extrusion sealing drill bit that spins, it is characterized in that: be by the first hard alloy spherical-teeth (1), bit body (2), seal closure (3), lower contact (4), anvil block (5), retracting spring (6), the second hard alloy spherical-teeth (7), sealing ring (8, the 3rd hard alloy spherical-teeth (11) forms, bit body (2) inside has connecting of trapezoidal thread and anvil block (5), ((4) are enclosed within anvil block (5) above and dock with bit body (2) in lower contact, seal closure (3) is enclosed within bit body (2) and lower contact ((4) periphery, between seal closure (3) and lower contact (4), sliding ring (8) is set, retracting spring (6) is positioned at anvil block (5) and the lower contact (annulus that (4) form, the first hard alloy spherical-teeth (1), the second hard alloy spherical-teeth (7) and the 3rd hard alloy spherical-teeth (11) welding-on are on the surface of bit body (2), the first hard alloy spherical-teeth (1) is arranged in bit body (2) center, end, the second hard alloy spherical-teeth (7) is arranged in bit body (2) spiral cutting sword surface, the 3rd hard alloy spherical-teeth (11) circumferential arrangement is in the end of bit body (2), (afterbody of (4) is for connecting the bottom of impactor in lower contact, the helicoid of bit body (2) has many spiral solid-holding grooves (10) and a plurality of steam vent (9), steam vent (9) is placed in the middle layout in spiral solid-holding groove (10), steam vent (9) is communicated with bit body (2) central through hole (12), and the central through hole (12) of bit body (2) is communicated with the centre bore (13) of anvil block (5).
2. a kind of extrusion sealing drill bit that spins according to claim 1, is characterized in that: the front end of described bit body (2) is conical section, and cone angle is 20-40 °; The rear end of bit body (2) is cylindrical section, and cutting edge is single head or bull cone-type spiral type.
3. a kind of extrusion sealing drill bit that spins according to claim 1, is characterized in that: the pitch of spiral solid-holding groove (10) is 1-4 times of outside diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310559444.4A CN103556948B (en) | 2013-11-12 | 2013-11-12 | Churn compaction drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310559444.4A CN103556948B (en) | 2013-11-12 | 2013-11-12 | Churn compaction drill bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103556948A true CN103556948A (en) | 2014-02-05 |
| CN103556948B CN103556948B (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310559444.4A Expired - Fee Related CN103556948B (en) | 2013-11-12 | 2013-11-12 | Churn compaction drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103556948B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314482A (en) * | 2014-10-23 | 2015-01-28 | 河南理工大学 | Closed type helical hole-protecting drill and using method thereof for drilling of soft coal bed |
| CN104329028A (en) * | 2014-11-16 | 2015-02-04 | 吉林大学 | Split type inner jet reverse circulation rotary percussion drill bit |
| CN104763323A (en) * | 2015-03-03 | 2015-07-08 | 中国水利水电第十工程局有限公司 | Rotating percussion-compact two-way pneumatic impact mole |
| CN105856431A (en) * | 2016-04-08 | 2016-08-17 | 湘潭大学 | Drilling and milling cutter device used for wall grooving |
| JP2017101478A (en) * | 2015-12-03 | 2017-06-08 | 株式会社オーク | Bit for down-the-hole hammer |
| CN111877991A (en) * | 2020-09-08 | 2020-11-03 | 河南国昌建筑工程有限公司 | Pneumatic percussion drill bit |
| CN115070719A (en) * | 2022-07-14 | 2022-09-20 | 徐州三叉戟信息科技有限公司 | An intelligent mine rescue robot and rescue method based on lidar |
| CN117432326A (en) * | 2023-09-07 | 2024-01-23 | 中国地质调查局自然资源综合调查指挥中心 | Excavation device and method for heterogeneous surface matrixes |
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| US4096917A (en) * | 1975-09-29 | 1978-06-27 | Harris Jesse W | Earth drilling knobby bit |
| CN2059935U (en) * | 1989-09-05 | 1990-08-01 | 北京市建筑工程研究所 | Screw extruding drilling tool |
| CN1102867A (en) * | 1994-06-13 | 1995-05-24 | 长春地质学院 | Impact rotating extrusion sealing drill bit and drilling method |
| CN2469167Y (en) * | 2001-01-10 | 2002-01-02 | 张建华 | Densed drilling bits for making densed piles for consolidation of railway foundation |
| CN101305156A (en) * | 2005-11-11 | 2008-11-12 | Tracto技术有限公司 | Thread securer |
| CN202055749U (en) * | 2011-04-26 | 2011-11-30 | 武汉高铁桩工科技有限公司 | Compaction drilling tool |
| CN202055750U (en) * | 2011-05-24 | 2011-11-30 | 唐山天昱市政工程有限公司 | Screw-type compact drilling device |
| CN203515323U (en) * | 2013-11-12 | 2014-04-02 | 吉林大学 | Rotary percussion-compact drill bit |
-
2013
- 2013-11-12 CN CN201310559444.4A patent/CN103556948B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4096917A (en) * | 1975-09-29 | 1978-06-27 | Harris Jesse W | Earth drilling knobby bit |
| CN2059935U (en) * | 1989-09-05 | 1990-08-01 | 北京市建筑工程研究所 | Screw extruding drilling tool |
| CN1102867A (en) * | 1994-06-13 | 1995-05-24 | 长春地质学院 | Impact rotating extrusion sealing drill bit and drilling method |
| CN2469167Y (en) * | 2001-01-10 | 2002-01-02 | 张建华 | Densed drilling bits for making densed piles for consolidation of railway foundation |
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| CN203515323U (en) * | 2013-11-12 | 2014-04-02 | 吉林大学 | Rotary percussion-compact drill bit |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314482A (en) * | 2014-10-23 | 2015-01-28 | 河南理工大学 | Closed type helical hole-protecting drill and using method thereof for drilling of soft coal bed |
| CN104314482B (en) * | 2014-10-23 | 2017-04-12 | 河南理工大学 | Closed type helical hole-protecting drill and using method thereof for drilling of soft coal bed |
| CN104329028A (en) * | 2014-11-16 | 2015-02-04 | 吉林大学 | Split type inner jet reverse circulation rotary percussion drill bit |
| CN104329028B (en) * | 2014-11-16 | 2016-08-24 | 吉林大学 | Split type interior injection reacting cycle rotary percussion drill bit |
| CN104763323A (en) * | 2015-03-03 | 2015-07-08 | 中国水利水电第十工程局有限公司 | Rotating percussion-compact two-way pneumatic impact mole |
| JP2017101478A (en) * | 2015-12-03 | 2017-06-08 | 株式会社オーク | Bit for down-the-hole hammer |
| CN105856431A (en) * | 2016-04-08 | 2016-08-17 | 湘潭大学 | Drilling and milling cutter device used for wall grooving |
| CN111877991A (en) * | 2020-09-08 | 2020-11-03 | 河南国昌建筑工程有限公司 | Pneumatic percussion drill bit |
| CN115070719A (en) * | 2022-07-14 | 2022-09-20 | 徐州三叉戟信息科技有限公司 | An intelligent mine rescue robot and rescue method based on lidar |
| CN117432326A (en) * | 2023-09-07 | 2024-01-23 | 中国地质调查局自然资源综合调查指挥中心 | Excavation device and method for heterogeneous surface matrixes |
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| Publication number | Publication date |
|---|---|
| CN103556948B (en) | 2015-12-09 |
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Granted publication date: 20151209 Termination date: 20161112 |