CN110566123B - Forced guide device of drilling tool - Google Patents
Forced guide device of drilling tool Download PDFInfo
- Publication number
- CN110566123B CN110566123B CN201911040976.0A CN201911040976A CN110566123B CN 110566123 B CN110566123 B CN 110566123B CN 201911040976 A CN201911040976 A CN 201911040976A CN 110566123 B CN110566123 B CN 110566123B
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- CN
- China
- Prior art keywords
- drilling tool
- telescopic
- rolling bearing
- central body
- telescopic mechanisms
- 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.)
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Links
- 238000005553 drilling Methods 0.000 title claims abstract description 42
- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 238000005096 rolling process Methods 0.000 claims abstract description 26
- 238000010276 construction Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000005641 tunneling Effects 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a forced guider of a drilling tool, which comprises a cylindrical central body, wherein a rolling bearing is arranged at the upper part of the central body, the inner ring of the rolling bearing is in clearance fit with the outer wall of the central body, a plurality of first telescopic mechanisms are uniformly arranged on the outer ring of the rolling bearing along the circumferential direction at intervals, the fixed end of each first telescopic mechanism is connected with the outer ring of the rolling bearing, and the extending end is movably connected with an arc shoe plate; a plurality of second telescopic mechanisms are uniformly arranged outside the central body at intervals along the circumferential direction of the central body, the second telescopic mechanisms are positioned below the rolling bearing, a plurality of lugs which are in one-to-one correspondence with the second telescopic mechanisms are arranged at the bottom of the inner ring of the rolling bearing, and the extending end of each second telescopic mechanism is connected with the corresponding lug; the center of the center body is provided with a channel which longitudinally penetrates through. The invention can enable the drilling tool to be used for the construction of shafts with different diameters, and has good universality and better guiding effect.
Description
Technical Field
The invention relates to the technical field of tunneling mechanical equipment for petroleum, coal mines, exploration and mines, in particular to a forced guide device of a drilling tool.
Background
Drilling rigs are often used in underground construction machinery, and in the process of drilling rig construction, a drilling tool is generally required to be positioned so as to ensure construction quality. At present, in the drilling process of a drilling machine, in order to avoid shaking of a drilling tool system, a drilling tool guide is generally arranged, the existing drilling tool guide has two structures, one is a frame structure which rotates along with a drill rod, the frame structure is fixedly connected with the drill rod, a certain gap is reserved between the outermost side of the frame structure and a well wall, the guide is simple in structure and low in cost, but when the well wall collapses under the condition of non-ideal geology, the guide is easy to clamp, so that the drilling tool is clamped; the other is a guide device which can rotate relative to the drill rod, can rotate along with the drill rod, can also be static, keeps a certain gap with the wall of the well at the outermost side of the guide device, solves the problem of drill sticking of the first guide device structure, but has an unsatisfactory guide effect because a certain gap is kept between the guide device and the wall of the well; in addition, the above-mentioned guides are all of a constant diameter construction and cannot be used when the wellbore diameter is changed.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a forced guider of a drilling tool, which has good guiding effect and can ensure that the drilling tool with the drilling tool is used for the construction of wells with different diameters.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
A forced guider of a drilling tool comprises a cylindrical central body, wherein a rolling bearing is arranged on the upper portion of the central body, an inner ring of the rolling bearing is in clearance fit with the outer wall of the central body, a plurality of first telescopic mechanisms are uniformly arranged on an outer ring of the rolling bearing along the circumferential direction at intervals, a fixed end of each first telescopic mechanism is connected with the outer ring of the rolling bearing, and an arc-shaped shoe plate is movably connected with an extending end of each first telescopic mechanism; a plurality of second telescopic mechanisms are uniformly arranged outside the central body at intervals along the circumferential direction of the central body, the second telescopic mechanisms are positioned below the rolling bearing, a plurality of lugs which are in one-to-one correspondence with the second telescopic mechanisms are arranged at the bottom of the inner ring of the rolling bearing, and the extending end of each second telescopic mechanism is connected with the corresponding lug; the center of the center body is provided with a channel which longitudinally penetrates through.
Further, the top and the bottom of the central body are respectively provided with an upper flange and a lower flange, the upper flange and the lower flange are coaxially arranged with the central body and are connected with a drill rod through the upper flange and are connected with a drilling tool through the lower flange.
Furthermore, the fixed ends of the second telescopic mechanisms are arranged at the top of the lower flange.
Further, first connecting pieces are arranged between the fixed ends of every two adjacent first telescopic mechanisms, and a plurality of first connecting pieces form an annular structure.
Further, second connecting pieces are arranged between the fixed ends of every two adjacent second telescopic mechanisms, and a plurality of second connecting pieces form an annular structure.
By adopting the technical scheme, the invention has the following advantages:
The forced guide device of the drilling tool has the advantages of simple structure, reasonable and novel design, ingenious conception, easy manufacture, simple and convenient operation and stable construction, and the maximum diameter of the guide device can be changed by utilizing a plurality of first telescopic mechanisms, so that the drilling tool can be used for construction of shafts with different diameters, and the universality is good; the arc shoe plate can tightly prop against the well wall without leaving a gap, is contacted with the cambered surface of the well wall, has larger contact area, avoids collapse of the well wall when an unstable stratum is drilled, and has better guiding effect; when the drilling tool drills downwards, the rolling bearings, the first telescopic mechanisms and the arc-shaped shoe plates can be pushed to move upwards through the second telescopic mechanisms, so that forced guiding of the drilling tool is realized; the drilling tool is firm and durable, is convenient to install and maintain, effectively prolongs the service life of the drilling tool, and has good popularization and application values.
Drawings
FIG. 1 is a schematic view of the forced guide of the drilling tool of the present invention in one of its extended positions;
FIG. 2 is a schematic view of the cross-sectional structure of A-A of FIG. 1;
FIG. 3 is a schematic view of the structure of the forced guide of the drilling tool of the present invention in a second extended state;
FIG. 4 is a schematic view of the forced guide of the drilling tool of the present invention in a contracted state;
FIG. 5 is a schematic view of the B-B cross-sectional structure of FIG. 4;
In the figure: 1-an upper flange; 2-rolling bearings; 3-shoe plates; 4-a first telescopic mechanism; 5-ear seats; 6-a second telescopic mechanism; 7-a lower flange; 8-a central body; 9-channel; 10-first connector.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the accompanying drawings and examples.
As shown in fig. 1,2, 3,4 and 5, the forced guider of the drilling tool comprises a cylindrical central body 8, wherein a rolling bearing 2 is arranged at the upper part of the central body, the inner ring of the rolling bearing is in clearance fit with the outer wall of the central body, a plurality of first telescopic mechanisms 4 which are horizontal are uniformly arranged on the outer ring of the rolling bearing at intervals along the circumferential direction, the fixed end of each first telescopic mechanism is fixedly connected with the outer ring of the rolling bearing, and the extending end of each first telescopic mechanism is movably connected with an arc shoe plate 3; the inner side of the arc-shaped boot plate is provided with a connecting groove, a connecting part arranged at the extending end of the first telescopic mechanism is rotatably matched and arranged in the connecting groove, the connecting part is rotatably connected with the groove wall of the connecting groove through a pin shaft, and a spring is arranged between the connecting part and the connecting groove; a plurality of second telescopic mechanisms 6 which are vertical are uniformly arranged outside the central body 8 along the circumferential direction at intervals, the second telescopic mechanisms are all positioned below the rolling bearing 2, a plurality of lugs 5 which are in one-to-one correspondence with the second telescopic mechanisms are fixedly arranged at the bottom of the inner ring of the rolling bearing, and the extending end of each second telescopic mechanism is upwards arranged and connected with the corresponding lug; the center of the center body 8 is provided with a longitudinally penetrating channel 9 for the slurry produced by drilling to pass through.
The top and the bottom of the central body 8 are respectively provided with an upper flange 1 and a lower flange 7, the upper flange and the lower flange are coaxially arranged with the central body and are connected with a drill rod through the upper flange and are connected with a drilling tool through the lower flange; the fixed ends of the second telescopic mechanisms 7 are all arranged at the top of the lower flange 7.
The first connecting pieces 10 are arranged between the fixed ends of every two adjacent first telescopic mechanisms 4, and a plurality of first connecting pieces form an annular structure to connect all the first telescopic mechanisms into an annular whole for increasing the overall rigidity of the first telescopic mechanisms.
The second connecting pieces are arranged between the fixed ends of every two adjacent second telescopic mechanisms, the plurality of second connecting pieces form an annular structure, and all the second telescopic mechanisms are connected into an annular whole for increasing the overall rigidity of the second telescopic mechanisms.
The forced guide of the drilling tool of the invention has the working process that: the extending ends of all the first telescopic mechanisms 4 extend to enable the arc-shaped shoe plates 3 to prop against the well wall, the extending length of the extending ends of the first telescopic mechanisms 4 is determined according to the diameter of the well shaft, the central body 8 rotates along with the drilling tool system, the inner ring of the rolling bearing 2 rotates along with the drilling tool system, the outer ring of the rolling bearing 2, all the first telescopic mechanisms 4 and the arc-shaped shoe plates 3 are static relative to the well wall, at the moment, all the second telescopic mechanisms 6 are in a fully retracted state, as shown in fig. 3, along with the rotation and downward pushing of the drilling tool, the second telescopic mechanisms 6 gradually extend, when the second telescopic mechanisms extend to the limit position shown in fig. 1, all the first telescopic mechanisms 4 retract, then all the second telescopic mechanisms 6 retract to drive the rolling bearing 2, all the first telescopic mechanisms and the arc-shaped shoe plates 3 to move downwards to the lowest point, as shown in fig. 4, the extending ends of the first telescopic mechanisms 4 extend, the arc-shaped shoe plates 3 prop against the well wall, and a new cycle is started.
The forced guide device of the drilling tool can adapt to shaft construction with different diameters, and the diameter is changed through the expansion and the contraction of the first expansion mechanism.
In the invention, the first telescopic mechanism and the second telescopic mechanism both adopt hydraulic cylinders or air cylinders.
The present invention is not limited to the above-mentioned embodiments, but can be modified in various ways without departing from the spirit and scope of the invention.
Claims (5)
1. The utility model provides a forced director of drilling tool, includes cylindric center body, antifriction bearing is installed on center body upper portion, and the passageway that vertically runs through is seted up at the center of center body, characterized by: the inner ring of the rolling bearing is in clearance fit with the outer wall of the central body, a plurality of first telescopic mechanisms are uniformly arranged on the outer ring of the rolling bearing along the circumferential direction at intervals, the fixed end of each first telescopic mechanism is connected with the outer ring of the rolling bearing, and the extending end of each first telescopic mechanism is movably connected with an arc shoe plate; the outside of the central body is evenly provided with a plurality of second telescopic machanism along its circumferencial direction interval, and a plurality of second telescopic machanism all is located antifriction bearing below, antifriction bearing's inner circle bottom be equipped with a plurality of with second telescopic machanism one-to-one's ear seat, every second telescopic machanism stretch out the end and be connected with corresponding ear seat.
2. The positive guide for a drilling tool of claim 1, wherein: the top and the bottom of the central body are respectively provided with an upper flange and a lower flange, the upper flange and the lower flange are coaxially arranged with the central body and are connected with a drill rod through the upper flange and are connected with a drilling tool through the lower flange.
3. The positive guide for a drilling tool of claim 2, wherein: the fixed ends of a plurality of second telescopic mechanisms are arranged at the top of the lower flange.
4. The positive guide for a drilling tool of claim 1, wherein: first connecting pieces are arranged between the fixed ends of every two adjacent first telescopic mechanisms, and a plurality of first connecting pieces form an annular structure.
5. The positive guide for a drilling tool of claim 1, wherein: the second connecting pieces are arranged between the fixed ends of every two adjacent second telescopic mechanisms, and the plurality of second connecting pieces form a circular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911040976.0A CN110566123B (en) | 2019-10-30 | 2019-10-30 | Forced guide device of drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911040976.0A CN110566123B (en) | 2019-10-30 | 2019-10-30 | Forced guide device of drilling tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110566123A CN110566123A (en) | 2019-12-13 |
| CN110566123B true CN110566123B (en) | 2024-08-27 |
Family
ID=68786037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911040976.0A Active CN110566123B (en) | 2019-10-30 | 2019-10-30 | Forced guide device of drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110566123B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005377B (en) * | 2019-12-26 | 2021-07-27 | 黑龙江省八达路桥建设有限公司 | Drilling tool supporting limiting descending device for bored pile construction |
| CN112665997A (en) * | 2020-12-20 | 2021-04-16 | 华能西藏雅鲁藏布江水电开发投资有限公司 | Underground in-situ soil body loading device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672895A (en) * | 2016-04-11 | 2016-06-15 | 平煤建工集团特殊凿井工程有限公司 | Variable-diameter drill bit stabilizer for engineering driller |
| CN110056366A (en) * | 2019-05-17 | 2019-07-26 | 中铁工程装备集团有限公司 | A kind of open type TBM auxiliary support shoe apparatus |
| CN211144373U (en) * | 2019-10-30 | 2020-07-31 | 中信重工机械股份有限公司 | Forced guider of drilling tool |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5752572A (en) * | 1996-09-10 | 1998-05-19 | Inco Limited | Tractor for remote movement and pressurization of a rock drill |
| US6920944B2 (en) * | 2000-06-27 | 2005-07-26 | Halliburton Energy Services, Inc. | Apparatus and method for drilling and reaming a borehole |
| US7730965B2 (en) * | 2002-12-13 | 2010-06-08 | Weatherford/Lamb, Inc. | Retractable joint and cementing shoe for use in completing a wellbore |
| CN103256006B (en) * | 2013-06-03 | 2015-05-20 | 安徽理工大学 | Driving-type drill bit guiding device |
| CN107339068A (en) * | 2017-06-08 | 2017-11-10 | 浙江中锐重工科技股份有限公司 | Diameter-variable drilling tool guider |
| CN109209221B (en) * | 2018-11-14 | 2024-02-09 | 中国铁建重工集团股份有限公司 | Down-the-hole hammer equipment and impact guiding system thereof |
-
2019
- 2019-10-30 CN CN201911040976.0A patent/CN110566123B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672895A (en) * | 2016-04-11 | 2016-06-15 | 平煤建工集团特殊凿井工程有限公司 | Variable-diameter drill bit stabilizer for engineering driller |
| CN110056366A (en) * | 2019-05-17 | 2019-07-26 | 中铁工程装备集团有限公司 | A kind of open type TBM auxiliary support shoe apparatus |
| CN211144373U (en) * | 2019-10-30 | 2020-07-31 | 中信重工机械股份有限公司 | Forced guider of drilling tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110566123A (en) | 2019-12-13 |
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