CN109138844A - A kind of drill bit - Google Patents
A kind of drill bit Download PDFInfo
- Publication number
- CN109138844A CN109138844A CN201810977042.9A CN201810977042A CN109138844A CN 109138844 A CN109138844 A CN 109138844A CN 201810977042 A CN201810977042 A CN 201810977042A CN 109138844 A CN109138844 A CN 109138844A
- Authority
- CN
- China
- Prior art keywords
- mandrel
- screw thread
- knife plate
- piston
- conduit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000002689 soil Substances 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
本发明的目的在于提供一种钻头，包括导管、活塞、芯轴、限位套、刀板，当有某一角度上进行多次重复切削时，由钻机上对钻头进行倒退及前进操作，达到芯轴作顶进及切削功能。实现了在某一角度上进行多次重复切削，使刀板沿切削方向前进，实现了向刀板斜面变向的目的，在不要变向时，对钻头进行连续的前进及旋转动作，实现直线钻进。
The purpose of the present invention is to provide a drill bit, including a guide tube, a piston, a mandrel, a limit sleeve, and a cutter plate. When repeated cutting is performed at a certain angle, the drill bit is operated backwards and forwards on the drilling rig to achieve The mandrel is used for jacking and cutting functions. It realizes repeated cutting at a certain angle, so that the blade advances along the cutting direction, and realizes the purpose of changing the direction of the inclined surface of the blade. get in.
Description
Technical field
The present invention relates to a kind of undergrounds to creep into deflecting drill bit.
Background technique
Starter is a kind of underground drilling construction drill drilling tool, and in drilling process, starter passes through on ground
Drill control drilling rod angle, to determine the position of drill bit and the track of advance, so that it be guided to bore on expected track
Into.Existing starter is encountering more harder soil layer into being all using rock drill bit, cost is high, steering angle
It is small, it may appear that it is stuck phenomena such as.In addition, rock starter is used also to require to use high-pressure slurry as power, energy will cause
Consumption increases, and leads to the increase of entire construction cost.
Chinese publication CN200920132298 guide bit for horizontal directional drilling pipe-laying drilling machine, when there is a certain angle
On carry out be repeated several times cutting when, can only by drilling machine to drill bit carry out positive and negative rotation and fall back forward operation.
Summary of the invention
The purpose of the present invention is to provide a kind of drill bit, it can solve and encounter stratum medium hardness soil in the drilling construction of underground
When layer the problem of drill bit deflecting.
The present invention provides a kind of drill bit, including conduit, piston, mandrel, limit sleeve, knife plate to solve the above-mentioned problems;
It is provided with plunger shaft in one side pipe of conduit, conduit internal screw thread is provided in another side pipe, piston is installed in plunger shaft, mandrel
It is installed in conduit internal screw thread, mandrel is provided with mandrel external screw thread, mandrel external screw thread and conduit screw-internal thread fit, and piston nose is set
It is equipped with piston connection external screw thread, core back-end is provided with mandrel connection internal screw thread, and the connection external screw thread of piston connects the mandrel
Connection internal screw thread, be provided with mandrel inclined-plane in mandrel front end, knife plate bolt hole be provided on mandrel inclined-plane, be provided on knife plate and knife plate
The corresponding hole of bolt hole, knife plate are fixedly attached on the mandrel inclined-plane by knife plate bolt, are provided in the middle part of mandrel outer ring
Mandrel shoulder is provided with the outer connection screw thread of conduit on catheter proximal end periphery, is provided in limit sleeve on limit sleeve inner headed face and connects spiral shell
Line, limit sleeve are installed on catheter proximal end, and mandrel shoulder is limited in limit sleeve and catheter proximal end face, and it is logical that piston centre is provided with piston
Water hole, mandrel center are provided with mandrel limbers, and knife plate center is provided with knife plate apopore, piston limbers and mandrel limbers and knife
Plate apopore communicates, and connection screw thread connects outer drill rod, and high pressure water is connected in outer drill rod, and high pressure water can lead to knife from catheter proximal end
Before plate, piston pushes forward under effect of water pressure, piston push mandrel forward extend out, in conduit internal screw thread with spiral shell outside mandrel
Under line collective effect, mandrel advances while rotating forward as circumferencial direction, and knife plate makees stretching and circumference side under the drive of mandrel
To forward rotating movements.When jacking power, which is greater than high pressure water, makees power to piston, mandrel is retracted while being rotated backward as circumferencial direction.
Further, it is preferable to which scheme further further comprises locking nut, the locking nut is mounted on above-mentioned limit
After set.
Further, it is preferable to which the above-mentioned plunger shaft front end inner hole of scheme is provided with connection screw thread.
Further, it is preferable to which scheme further comprises further packet closure gasket groove, the closure gasket groove is located at piston great circle
Outer ring.
Further, it is preferable to which scheme further comprises sealing ring, the sealing ring is installed in above-mentioned closure gasket groove.
Further, it is preferable to which the above-mentioned conduit internal screw thread of scheme is trapezoidal thread.
Further, it is preferable to which the above-mentioned mandrel external screw thread of scheme is trapezoidal thread.
Further, it is preferable to which the above-mentioned knife plate of scheme is rectangle, the long direction of knife plate is pacified along the direction L on mandrel inclined-plane
Dress.
Compared with prior art, the invention has the following beneficial effects: work as to have to carry out multiplicating cutting in a certain angle
When, by carrying out retroversion and forward operation to drill bit on drilling machine, reaches mandrel and make jacking and cutting function.It realizes in a certain angle
On carry out multiplicating cutting, so that knife plate is advanced along cutting direction, realize the purpose to knife plate bevel direction deflecting, should not
When deflecting, drill bit is continuously rotated and propulsion movement, realization straight line are crept into.
Detailed description of the invention
Fig. 1 is drill bit structure figure；
Fig. 2 is Repeated Cutting area schematic；
Fig. 3 is conduit cross-sectional view；
Fig. 4 is mandrel cross-sectional view；
Fig. 5 is piston structure figure；
Fig. 6 is limit sleeve cross-sectional view.
Main element label declaration:
1. connection screw thread, 2. conduits, 3. sealing rings, 4. pistons, 5. piston limbers, 6. mandrels, 7. locking nuts, 8. mandrel platforms
Shoulder, 9. limit sleeves, 10. knife plates, 11. knife plate bolts, 12. knife plate apopores, 13. conduit internal screw threads, 14. mandrels connect interior spiral shell
Line, 15. mandrel external screw threads, 16. knife plate bolts hole, 17. mandrel limbers, 18. mandrel inclined-planes, 19. pistons connection external screw thread,
20. connection screw thread, 23. closure gasket grooves in the outer connection screw thread of plunger shaft, 21. conduits, 22. limit sleeves.
Specific embodiment
Implementation of the invention is described further below in conjunction with attached drawing, but implementation and protection scope of the invention is not limited to
This.
A kind of drill bit of the present invention, the present invention provides a kind of drill bit, including conduit 2, piston 4, core to solve the above-mentioned problems
Axis 6, limit sleeve 9, knife plate 10 are provided with plunger shaft 20 in 2 one side pipe of conduit, are provided with conduit internal screw thread in another side pipe of conduit 2
13, piston 4 is installed in plunger shaft 20, and mandrel 6 is installed in conduit internal screw thread 13, and mandrel 6 is provided with mandrel external screw thread 15, core
Axis external screw thread 15 and conduit internal screw thread 13 cooperate, and 4 front end of piston is provided with piston connection external screw thread 19, and 6 rear end of mandrel is provided with
Mandrel connects internal screw thread 14, and piston connects 19 connecting mandrel of external screw thread and connects internal screw thread 14, is provided with mandrel inclined-plane in mandrel front end
18, knife plate bolt hole 16 is provided on mandrel inclined-plane 18, knife plate 10 is fixedly attached on mandrel inclined-plane 18 by knife plate bolt 11,
It is provided with mandrel shoulder 8 in the middle part of 6 outer circle of mandrel, the outer connection screw thread 21 of conduit, 9 rear end of limit sleeve are provided on 2 front end periphery of conduit
Interior connection screw thread 22 after limit sleeve is provided on inner headed face, limit sleeve 9 is installed on 2 front end of conduit, and mandrel shoulder 8 is limited in limit sleeve
9 and 2 front end face of conduit in, 4 center of piston is provided with piston limbers 5, and 6 center of mandrel is provided with mandrel limbers 17, in knife plate 10
The heart is provided with knife plate limbers 12,5 connecting mandrel limbers 17 of piston limbers, and mandrel limbers connects knife plate limbers 12.?
20 front end inner hole of plunger shaft is provided with connection screw thread 1, and connection screw thread 1 connects the hollow drill pipe on drilling machine, and drilling machine exports high to drill bit
Before pressure water can lead to knife plate 10 from 2 front end of conduit, piston 4 pushes forward under water effect, and piston pushes mandrel 6 to forward extend out,
In the case where conduit internal screw thread 13 and mandrel external screw thread 15 act on, mandrel 6 is rotated forward while advance as circumferencial direction, and knife plate 10 exists
Make advance and circular motion under the drive of mandrel 6, when jacking power, which is greater than high pressure water, makees power to piston 4, mandrel 6 is retracted while being made
Circumferencial direction rotates backward.
Preferred embodiment is to prevent limit sleeve 9 from loosening, and installs locking nut 7 additional before limit sleeve 9.
Sealing ring 3 is further arranged in preferred embodiment between 4 periphery of piston and plunger shaft 20.
Conduit internal screw thread and mandrel external screw thread are set as trapezoidal thread by preferred embodiment
The above-mentioned knife plate of preferred embodiment is rectangle.
When work, conduit 2 is connect on the hollow drill pipe for wanting drilling machine, drilling machine exports high pressure water from hollow drill pipe, and water is from knife plate
10 front ends project, play lubricating action, when wanting deflecting compared with Soft Soil Layer, drill control drilling rod does not rotate, drilling machine to drilling rod to
Sinciput realizes deflecting into power, the oblique propulsion of knife plate 10.When wanting deflecting compared with hard stratum, drill control drilling rod does not rotate, and bores
Machine leaves cutting face to drilling rod, knife plate 10 is drawn back, and hollow drill pipe high pressure water directed force F pushes piston 4 to forward extend out mandrel 6,
Knife plate 10 returns to A point by B point, and drilling machine is to drilling rod jacking forward, and knife plate 10 is by active force backward, while jacking, knife plate
10 make stock removal action from A point to B point, so that the cutting for realizing the certain angle for becoming circumferencial direction by linear motion is moved
Make, realizes to medium hardness soil layer drill bit deflecting.
Claims (8)
1. a kind of drill bit, it is characterised in that including conduit (2), piston (4), mandrel (6), limit sleeve (9), knife plate (10);
It is provided with plunger shaft (20) in (2) one side pipe of conduit, conduit internal screw thread (13), the piston is provided in another side pipe
(4) it is installed in the plunger shaft (20), the mandrel (6) is installed in the conduit internal screw thread (6), and the mandrel (6) sets
It is equipped with mandrel external screw thread (15), the mandrel external screw thread (15) and the conduit internal screw thread (13) cooperate, piston (4) front end
It is provided with piston connection external screw thread (19), mandrel (6) rear end is provided with mandrel connection internal screw thread (14), the piston (4)
Connection external screw thread (19) connect the connection internal screw thread (14) of the mandrel (6), be provided with mandrel inclined-plane in the mandrel (6) front end
(18), it closely states and is provided on mandrel inclined-plane (18) knife plate bolt hole (16), is provided on the knife plate (10) and knife plate bolt hole (16)
Corresponding hole, the knife plate (10) is fixedly attached on the mandrel inclined-plane (18) by knife plate bolt (11), in the core
It is provided with mandrel shoulder (8) in the middle part of axis outer ring, the outer connection screw thread (21) of conduit is provided on the periphery of conduit (2) front end, it is described
It being provided with connection screw thread in limit sleeve (22) on limit sleeve (9) inner headed face, the limit sleeve (9) is installed on the conduit (2) front end,
Mandrel (6) shoulder is limited in limit sleeve (9) and conduit (2) front end face, and piston (4) center is provided with piston limbers
(5), mandrel (6) center is provided with mandrel limbers (17), and the knife plate center is provided with knife plate apopore (12), the piston
Limbers (5) is communicated with the mandrel limbers (17) and the knife plate apopore (12).
2. a kind of drill bit according to claim l, it is characterised in that further comprise locking nut (7), the locking screw
After mother is mounted on above-mentioned limit sleeve (9).
3. a kind of drill bit according to claim 1, it is characterised in that plunger shaft (20) front end inner hole is provided with connection spiral shell
Line (1).
4. a kind of drill bit according to claim 1, it is characterised in that further packet closure gasket groove (23), the closure gasket groove
(23) it is located at piston (4) great circle outer ring.
5. a kind of drill bit according to claim 1, it is characterised in that it further comprise sealing ring (4), the sealing ring (4)
It is installed in above-mentioned closure gasket groove (23).
6. a kind of drill bit according to claim 1, it is characterised in that above-mentioned conduit internal screw thread (13) is trapezoidal thread.
7. a kind of drill bit according to claim 1, it is characterised in that above-mentioned mandrel external screw thread (15) is trapezoidal thread.
8. a kind of drill bit according to claim 1, it is characterised in that above-mentioned knife plate (10) is rectangle, knife plate (10) length
It is installed along the direction L on mandrel inclined-plane (18) in direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810977042.9A CN109138844B (en) | 2018-08-26 | 2018-08-26 | A drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810977042.9A CN109138844B (en) | 2018-08-26 | 2018-08-26 | A drill bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109138844A true CN109138844A (en) | 2019-01-04 |
| CN109138844B CN109138844B (en) | 2024-11-05 |
Family
ID=64828162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810977042.9A Active CN109138844B (en) | 2018-08-26 | 2018-08-26 | A drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109138844B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6578635B1 (en) * | 2000-09-25 | 2003-06-17 | Charles D. Hailey | Lining removal method, system and components thereof |
| DE102005022585A1 (en) * | 2004-08-06 | 2006-03-16 | Friedr. Ischebeck Gmbh | Boring header for ventilation lance, has connector opening and discharge opening, where fluid channel provided between connector opening and discharge opening runs through drill bit and boring shaft |
| CN203808055U (en) * | 2014-05-07 | 2014-09-03 | 孔超 | Screw post-reinforced compacted pile |
| CN104265168A (en) * | 2014-07-28 | 2015-01-07 | 西南石油大学 | Dynamic internal bias point-the-bit rotary steering device |
| CN107237607A (en) * | 2017-06-20 | 2017-10-10 | 中国石油天然气集团公司 | A kind of downhole hydraulic eddy flow auxiliary rock instrument |
| CN208749299U (en) * | 2018-08-26 | 2019-04-16 | 柳州市菱丰科技有限公司 | A kind of drill bit |
-
2018
- 2018-08-26 CN CN201810977042.9A patent/CN109138844B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6578635B1 (en) * | 2000-09-25 | 2003-06-17 | Charles D. Hailey | Lining removal method, system and components thereof |
| DE102005022585A1 (en) * | 2004-08-06 | 2006-03-16 | Friedr. Ischebeck Gmbh | Boring header for ventilation lance, has connector opening and discharge opening, where fluid channel provided between connector opening and discharge opening runs through drill bit and boring shaft |
| CN203808055U (en) * | 2014-05-07 | 2014-09-03 | 孔超 | Screw post-reinforced compacted pile |
| CN104265168A (en) * | 2014-07-28 | 2015-01-07 | 西南石油大学 | Dynamic internal bias point-the-bit rotary steering device |
| CN107237607A (en) * | 2017-06-20 | 2017-10-10 | 中国石油天然气集团公司 | A kind of downhole hydraulic eddy flow auxiliary rock instrument |
| CN208749299U (en) * | 2018-08-26 | 2019-04-16 | 柳州市菱丰科技有限公司 | A kind of drill bit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109138844B (en) | 2024-11-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240929 Address after: Building 12, Zone D, Jiangjialin Industrial Park, Beichuan Road, Wuxue City, Huanggang City, Hubei Province 435400 Applicant after: Wuxue Jinzuan Machinery Co.,Ltd. Country or region after: China Address before: 545000 52 Kwun Tong Road, Liuzhou, the Guangxi Zhuang Autonomous Region Applicant before: LIUZHOU LINGFENG TECHNOLOGY Co.,Ltd. Country or region before: China |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |