CN203669749U - Concentric simultaneous casing drilling tool - Google Patents
Concentric simultaneous casing drilling tool Download PDFInfo
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- CN203669749U CN203669749U CN201420010262.1U CN201420010262U CN203669749U CN 203669749 U CN203669749 U CN 203669749U CN 201420010262 U CN201420010262 U CN 201420010262U CN 203669749 U CN203669749 U CN 203669749U
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Abstract
The utility model discloses a concentric simultaneous casing drilling tool, and relates to the technical field of soil layer or rock drilling. The concentric simultaneous casing drilling tool comprises a casing pipe and a casing pipe shoe connected with the inner wall of the right end of the casing pipe in a sleeved mode, the left end of a rod stabilizer drill bit penetrates through the casing pipe shoe and is located in a cavity of the casing pipe, the outer wall of the right end of the rod stabilizer drill bit is sleeved with an annular drill bit, the left end of the annular drill bit is connected with the inner wall of the right end of the casing pipe shoe in a sleeved mode, and threads are arranged on the outer wall of the left end of the annular drill bit and are matched and connected with threads on the inner wall of the right end of the casing pipe shoe. The concentric simultaneous casing drilling tool is simple in structure, reliable in use and easy to manufacture and assemble, the annular drill bit is fixed reliably, drilling efficiency is high, good hole forming perpendicularity is achieved, and use performance is stable and reliable.
Description
Technical field
The utility model relates to the drilling technology field of soil layer or rock.
Background technology
Eccentric drilling tool is to creep into the technical new drilling technology growing up at down-the-hole, is characterized in the complexity such as loose crushing and sandy gravel is difficult for the geology of pore-forming, successfully creeping into and effective pore-forming.
Eccentric drilling tool, the mode of creeping into generally adopting is: aperture creeps into, and then second reaming is lowered to after sleeve pipe retaining wall, more normally creeps into.Existing eccentric drilling tool is mainly three-piece structure, comprise notch cuttype guider, be located at reaming bit and the connecting pin of guider front end and be arranged on the off-balance bit formation on guider, carrying out in drilling process, after reaming bit reaming, the sleeve pipe boring of simultaneously following up, to fix loose rock stratum, the granulated slag that boring produces is discharged along sleeve pipe.After putting in place with pipe bit shot borehole, drilling tool opposite spin, reaming bit draws in and overlaps with off-balance bit position, and now drilling tool can take out in sleeve pipe.Due in drilling process, connecting pin is born the effect of transmitting all torsion torque, and connecting pin is placed in the cylinder position of pin-and-hole and the guider of off-balance bit, there is gap in three's matching part, therefore existing eccentric drilling tool, transmitting torque poor-performing, discontinuity, it is not firm to connect, and is prone to the drilling tool fault that drops, drilling and forming hole efficiency is low, and functional performance is poor, unstable.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of concentric simultaneous casing drilling tool, simple in structure, use reliable, make assembling easily, annular bit is fixed, drilling efficiency is high, becomes hole perpendicularity good, functional performance is reliable and stable.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of concentric simultaneous casing drilling tool, comprise sleeve pipe and the casing shoe that is socketed on sleeve pipe right-hand member inwall, the left end of virtual calibrator for instrument transformer drill bit passes casing shoe and is positioned at the cavity of sleeve pipe, the right-hand member outer wall of virtual calibrator for instrument transformer drill bit is socketed with annular bit, the right-hand member inwall socket of the left end of annular bit and casing shoe, described annular bit left end outer wall is provided with screw thread, is connected with the threaded engagement of casing shoe right-hand member inwall.
Further, described annular bit inwall left end is provided with and drives fixture block, right-hand member to be provided with limited step, limited step is laid along annular bit inwall circumference, drives fixture block and limited step to form limited impression, on virtual calibrator for instrument transformer drill bit, is provided with first step with the corresponding position of limited impression.
Further, be also provided with second step and the 3rd step at the outer wall of virtual calibrator for instrument transformer drill bit, the annular boss of casing shoe inwall is positioned at the annular groove of second step and annular bit formation; The 3rd step on virtual calibrator for instrument transformer drill bit coordinates with the limited step on annular bit.
Further, described sleeve pipe adopts and is threaded with casing shoe.
The beneficial effect that adopts technique scheme to produce is: the utility model is in the time creeping into, rig drives impactor to turn clockwise, the virtual calibrator for instrument transformer drill bit being connected with impactor drives annular bit rotary drilling simultaneously reaming, casing shoe and sleeve pipe are along with advancing, whole drilling system follows up simultaneously, reaches the object that retaining wall creeps into; In the time creeping into projected depth, rig drives impactor reverse rotation, now annular bit, casing shoe and sleeve pipe keep motionless, driving impactor and virtual calibrator for instrument transformer drill bit to promote by rig retreats, and then drive annular bit, casing shoe and sleeve pipe lifting to exit, whole drilling system exits simultaneously, for next step construction provides good basis; The utility model has improved production efficiency, use and construction cost are saved, and this drilling tool is easy to use, hole wall verticality is better, dependable performance, be particularly suitable in pipe canopy engineering entering with pipe bit needs, be particularly useful for loose, easy collapse hole rock stratum and cover stratum and the pipe canopy engineering of the rock stratum that wall stability is poor in follow pipe bit to enter needs.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of virtual calibrator for instrument transformer drill bit in Fig. 1;
Fig. 3 is the structural representation of Fig. 1 middle sleeve boots;
Fig. 4 is the structural representation of annular bit in Fig. 1;
Mark in figure: 1-annular bit; 2-first step; 3-drives fixture block; 4-casing shoe; 5-virtual calibrator for instrument transformer drill bit; 6-sleeve pipe; 7-impactor; 8-cavity; 9-angling hole; 10-second step; 11-annular boss; 12-the 3rd step; 13-limited step.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Referring to Fig. 1 to Fig. 4, the utility model comprises sleeve pipe 6 and the casing shoe 4 that is socketed on sleeve pipe 6 right-hand member inwalls, and described sleeve pipe 6 adopts and is threaded with casing shoe 4; The left end of virtual calibrator for instrument transformer drill bit 5 passes casing shoe 4 and is positioned at the cavity 8 of sleeve pipe 6, the right-hand member outer wall of virtual calibrator for instrument transformer drill bit 5 is socketed with annular bit 1, the right-hand member inwall socket of the left end of annular bit 1 and casing shoe 4, annular bit 1 left end outer wall is provided with screw thread, is connected with the threaded engagement of casing shoe 4 right-hand member inwalls.
The utility model annular bit 1 inwall left end is provided with and drives fixture block 3, right-hand member to be provided with limited step 13, limited step 13 is laid along annular bit 1 inwall circumference, drive fixture block 3 and limited step 13 to form limited impression, on virtual calibrator for instrument transformer drill bit 5, be provided with first step 2 with the corresponding position of limited impression; Also be provided with second step 10 and the 3rd step 12 at the outer wall of virtual calibrator for instrument transformer drill bit 5, the annular boss 11 of casing shoe 4 inwalls is positioned at the annular groove that second step 10 and annular bit 1 form; The 3rd step 12 on virtual calibrator for instrument transformer drill bit 5 coordinates with the limited step 13 on annular bit 1.Annular bit 1 in the utility model drives rotation by virtual calibrator for instrument transformer drill bit 3 by driving fixture block 3, spacing by the first step 2 of virtual calibrator for instrument transformer drill bit 5.
Operating principle of the present utility model is: rig drives impactor 7 to turn clockwise, and virtual calibrator for instrument transformer drill bit 5 drives annular bit 1 to rotate simultaneously, and annular bit 1 starts reaming, and casing shoe 4 and sleeve pipe 6 and drilling system follow up simultaneously, reach the object that retaining wall creeps into; In the time creeping into projected depth, drilling tool upset 20 degree promote the utility model, now annular bit 1, casing shoe 4 and sleeve pipe 6 keep motionless, drive impactor 7 and virtual calibrator for instrument transformer drill bit 5 first to promote and exit by rig, under first step 2 effects of annular bit 1 on virtual calibrator for instrument transformer drill bit 5, follow and exit, together with the casing shoe 4 being threaded with annular bit 1 and the sleeve pipe 6 being threaded with casing shoe 4, exit, complete once to creep into promoting circulation simultaneously.The granulated slag producing in boring procedure enters the cavity 8 in sleeve pipe 6 along the angling hole 9 on virtual calibrator for instrument transformer drill bit 5, discharges along cavity.
The utility model, in the time promoting, is not affected by sillar in hole, and rig directly reverses after 20 degree and stops creeping into and promoting drilling tool; The utility model annular bit 1 is threaded with casing shoe 4, dismountable annular bit 1 in the time that easy-to-drill formation follows pipe bit to enter, the sleeve pipe 6 that directly drives casing shoe 4 by virtual calibrator for instrument transformer drill bit 5 and connect is followed pipe operation, can reduce like this annular bit 1 and wear and tear, and reduces the wastage.
Claims (4)
1. a concentric simultaneous casing drilling tool, comprise sleeve pipe (6) and be socketed on the casing shoe (4) of sleeve pipe (6) right-hand member inwall, the left end of virtual calibrator for instrument transformer drill bit (5) passes casing shoe (4) and is positioned at the cavity (8) of sleeve pipe (6), the right-hand member outer wall of virtual calibrator for instrument transformer drill bit (5) is socketed with annular bit (1), the right-hand member inwall socket of the left end of annular bit (1) and casing shoe (4), it is characterized in that: described annular bit (1) left end outer wall is provided with screw thread, be connected with the threaded engagement of casing shoe (4) right-hand member inwall.
2. a kind of concentric simultaneous casing drilling tool according to claim 1, it is characterized in that: described annular bit (1) inwall left end is provided with and drives fixture block (3), right-hand member to be provided with limited step (13), limited step (13) is laid along annular bit (1) inwall circumference, drive fixture block (3) and limited step (13) to form limited impression, corresponding position upper at virtual calibrator for instrument transformer drill bit (5) and limited impression is provided with first step (2).
3. a kind of concentric simultaneous casing drilling tool according to claim 1, it is characterized in that: be also provided with second step (10) and the 3rd step (12) at the outer wall of virtual calibrator for instrument transformer drill bit (5), the annular boss (11) of casing shoe (4) inwall is positioned at the annular groove of second step (10) and annular bit (1) formation; The 3rd step (12) on virtual calibrator for instrument transformer drill bit (5) coordinates with the limited step (13) on annular bit (1).
4. a kind of concentric simultaneous casing drilling tool according to claim 1, is characterized in that: described sleeve pipe (6) adopts and is threaded with casing shoe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420010262.1U CN203669749U (en) | 2014-01-08 | 2014-01-08 | Concentric simultaneous casing drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420010262.1U CN203669749U (en) | 2014-01-08 | 2014-01-08 | Concentric simultaneous casing drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203669749U true CN203669749U (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420010262.1U Expired - Fee Related CN203669749U (en) | 2014-01-08 | 2014-01-08 | Concentric simultaneous casing drilling tool |
Country Status (1)
| Country | Link |
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| CN (1) | CN203669749U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105255303A (en) * | 2015-11-27 | 2016-01-20 | 常熟市地大探矿机械厂 | Concentric pipe-following drilling tool |
| CN105863512A (en) * | 2016-04-13 | 2016-08-17 | 中煤科工集团西安研究院有限公司 | Coal mine underground broken soft coal seam ladder pipe-tracing compound directional drilling pore-forming device and method |
| CN106014352A (en) * | 2016-05-18 | 2016-10-12 | 中煤科工集团西安研究院有限公司 | Tube following sieve tube feeding device outside coal mine underground drill pipe and construction method thereof |
| CN106103880A (en) * | 2014-03-31 | 2016-11-09 | 三菱综合材料株式会社 | Digging tool |
| CN110529047A (en) * | 2019-09-11 | 2019-12-03 | 中国水利水电第七工程局有限公司 | A kind of self-advancing type pipe canopy drilling tool excavated for tunnel soft rock |
| CN111058772A (en) * | 2019-12-27 | 2020-04-24 | 长沙黑金刚实业有限公司 | Eccentric drilling tool |
-
2014
- 2014-01-08 CN CN201420010262.1U patent/CN203669749U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106103880A (en) * | 2014-03-31 | 2016-11-09 | 三菱综合材料株式会社 | Digging tool |
| US10107045B2 (en) | 2014-03-31 | 2018-10-23 | Mitsubishi Materials Corporation | Drilling tool |
| CN106103880B (en) * | 2014-03-31 | 2019-03-26 | 三菱综合材料株式会社 | Digging tool |
| CN105255303A (en) * | 2015-11-27 | 2016-01-20 | 常熟市地大探矿机械厂 | Concentric pipe-following drilling tool |
| CN105863512A (en) * | 2016-04-13 | 2016-08-17 | 中煤科工集团西安研究院有限公司 | Coal mine underground broken soft coal seam ladder pipe-tracing compound directional drilling pore-forming device and method |
| CN106014352A (en) * | 2016-05-18 | 2016-10-12 | 中煤科工集团西安研究院有限公司 | Tube following sieve tube feeding device outside coal mine underground drill pipe and construction method thereof |
| CN110529047A (en) * | 2019-09-11 | 2019-12-03 | 中国水利水电第七工程局有限公司 | A kind of self-advancing type pipe canopy drilling tool excavated for tunnel soft rock |
| CN111058772A (en) * | 2019-12-27 | 2020-04-24 | 长沙黑金刚实业有限公司 | Eccentric drilling tool |
| CN111058772B (en) * | 2019-12-27 | 2024-04-26 | 长沙黑金刚实业有限公司 | Eccentric drilling tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20210108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |