CN2606169Y - Homocentric drill with separate drive - Google Patents
Homocentric drill with separate drive Download PDFInfo
- Publication number
- CN2606169Y CN2606169Y CN 03233546 CN03233546U CN2606169Y CN 2606169 Y CN2606169 Y CN 2606169Y CN 03233546 CN03233546 CN 03233546 CN 03233546 U CN03233546 U CN 03233546U CN 2606169 Y CN2606169 Y CN 2606169Y
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- CN
- China
- Prior art keywords
- impactor
- bit
- separate drive
- sleeve
- drill
- 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.)
- Expired - Lifetime
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Abstract
A homocentric drill with separate drive consists of a piston rod of an impactor, an outer tube of an impactor, a sleeve, a transverse pin, a separate drive front joint of an impactor, a sleeve shoe, a clip spring, a reaming bit and a center bit, wherein the lower end of the separate drive front joint of impactor contacts the inner step of the sleeve shoe, the front shoulder ring of the center bit contacts the step in the reaming bit. The utility model uses the novel separate drive front joint instead of the prior front joint of impactor, the piston rod of the impactor hammers the center bit with a certain frequency when drilled, so the center bit can fragment rocks and drill in on one hand, on the other hand hammers the reaming bit and reams a hole larger than the outer diameter of the sleeve; meanwhile, a drill rod transfers the driving force of the drill to the lower end of the separate drive front joint of the impactor by the impactor and drives the sleeve shoe to make sleeve follow up to protect wall, thereby fulfilling the separate driving, greatly and improving the pore drilling efficiency as the work made by the impactor is entirely used for drilling in and rock fragmentation.
Description
Technical field
The utility model relates to a kind of partition type concentric simultaneous casing drilling tool.
Background technology
The partition type concentric simultaneous casing drilling tool is the casing drilling tool of a kind of bad ground with sleeve pipe retaining wall drilling and forming hole, the groundwork principle be under certain blast, air quantity the impactor piston bar with certain frequency hammering center bit, center bit one side detritus is crept into, the reaming bit of hammering on one side, and then expand, make the sleeve pipe retaining wall that follows up synchronously than cover external diameter of pipe big hole and hammering casing shoe.Because an impactor work part will advance the sleeve pipe retaining wall that follows up synchronously, make the energy that is used to creep into detritus reduce, thereby reduced pore-creating efficient.
Summary of the invention
In view of the foregoing, the purpose of this utility model is to design a kind of casing drilling tool of detritus with raising pore-creating efficient that the merit that impactor is done all can be used to creep into.
Design feature of the present utility model has reached above-mentioned purpose, it is by the impactor piston bar, the impactor outer tube, sleeve pipe, lateral pin, the front connector of impactor partition type, casing shoe, jump ring, reaming bit and center bit constitute, casing shoe is connected with casing threads, lock with reaming bit matched in clearance jump ring, the front connector of impactor partition type is connected with the impactor external pipe thread, the center bit tail end is positioned at impactor partition type front connector inwall spline, contact with the impactor piston bar, lateral pin is spacing, it is characterized in that impactor partition type front connector bottom contacts with step in the casing shoe, center bit crop ring contacts with step in the reaming bit.
The utility model is by using novel partition type front connector, replace the original front connector of impactor, when creeping into, the impactor piston bar is with certain frequency hammering center bit, make center bit on one side detritus creep into, on one side the hammering reaming bit and then expand than the big hole of cover external diameter of pipe; Meanwhile, drilling rod is passed to impactor partition type front connector bottom with the power that feeds of rig through the impactor outer tube, promotes casing shoe, makes the sleeve pipe retaining wall that follows up synchronously.Thereby realize the purpose of transfer, make the impactor work all be used to creep into detritus.
The utility model is advancing in the process with pipe bit, because the impactor work all is used to creep into detritus, has avoided flogging a dead horse, and has strengthened the detritus effect, and improve detritus efficient, thereby mentioned pore-creating efficient greatly, be a kind of casing drilling tool with promotional value.
Description of drawings
Fig. 1 has the concentric simultaneous casing drilling tool structural representation
Fig. 2 the utility model structural representation
The specific embodiment
Existing concentric simultaneous casing drilling tool as shown in Figure 1, constitute by impactor piston bar, impactor outer tube, sleeve pipe, lateral pin, impactor front connector, casing shoe, jump ring, reaming bit and center bit, its groundwork principle be under certain blast, air quantity impactor piston bar 1 with certain frequency hammering center bit 9, center bit 9 one side detritus are crept into, the reaming bit of hammering on one side 8, and then expand and hole and the hammering casing shoe 6 bigger, make sleeve pipe 3 follow-up retaining walls synchronously than sleeve pipe 3 external diameters.Because an impactor work part will advance sleeve pipe 3 follow-up retaining walls synchronously, a part is used for hammering casing shoe 6 and reaming bit 8, makes to be used for energy that hammering center bit 9 creeps into detritus because dispersion reduces, thereby has reduced pore-creating efficient
The utility model structure as shown in Figure 2, by impactor piston bar 1, impactor outer tube 2, sleeve pipe 3, lateral pin 4, impactor partition type front connector 5, casing shoe 6, jump ring 7, reaming bit 8 and center bit 9 constitute, casing shoe 6 is connected with casing threads, with reaming bit 8 matched in clearance, and by jump ring 7 lockings, impactor partition type front connector 5 is connected with the impactor external pipe thread, center bit 9 tail ends are positioned at impactor partition type front connector 5 inwall splines, contact with impactor piston bar 1, spacing by lateral pin 4, the bottom that it is characterized in that impactor partition type front connector 5 contacts with step in the casing shoe 6, and the crop ring of center bit 9 contacts with step in the reaming bit 8.
The utility model is by using novel partition type front connector, replace the original front connector of impactor, its operating principle is, when creeping into, impactor piston bar 1 is with certain frequency hammering center bit 9, make center bit 9 on one side detritus creep into, on one side hammering reaming bit 8 and then expand than the big hole of sleeve pipe 3 external diameters; Meanwhile, drilling rod is passed to the power that feeds of rig the bottom of impactor partition type front connector 5 through impactor outer tube 3, promote casing shoe 6, make sleeve pipe 3 follow-up retaining wall synchronously, make impactor institute work all be used to creep into detritus, thereby the component when having avoided creeping into has improved pore-creating efficient greatly.
Claims (1)
1, the partition type concentric simultaneous casing drilling tool, by the impactor piston bar, the impactor outer tube, sleeve pipe, lateral pin, the front connector of impactor partition type, casing shoe, jump ring, reaming bit and center bit constitute, casing shoe is connected with casing threads, lock with reaming bit matched in clearance jump ring, the front connector of impactor partition type is connected with the impactor external pipe thread, the center bit tail end is positioned at impactor partition type front connector inwall spline, contact with the impactor piston bar, lateral pin is spacing, it is characterized in that impactor partition type front connector bottom contacts with step in the casing shoe, center bit crop ring contacts with step in the reaming bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03233546 CN2606169Y (en) | 2003-03-17 | 2003-03-17 | Homocentric drill with separate drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03233546 CN2606169Y (en) | 2003-03-17 | 2003-03-17 | Homocentric drill with separate drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2606169Y true CN2606169Y (en) | 2004-03-10 |
Family
ID=34165868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03233546 Expired - Lifetime CN2606169Y (en) | 2003-03-17 | 2003-03-17 | Homocentric drill with separate drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2606169Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937003A (en) * | 2012-11-08 | 2013-02-20 | 泉州市双环能源科技有限公司 | Guiding drill bit |
| CN106014258A (en) * | 2016-05-18 | 2016-10-12 | 中煤科工集团西安研究院有限公司 | Coal mine underground concentric casing directional drilling device and construction method thereof |
| CN110439467A (en) * | 2019-07-30 | 2019-11-12 | 长沙天和钻具机械有限公司 | A kind of reaming block formula concentric simultaneous casing drilling 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 |
| CN112252980A (en) * | 2020-09-29 | 2021-01-22 | 湖南新金刚工程机械有限公司 | Down-the-hole concentric following pipe expanding drilling tool |
| CN113482562A (en) * | 2021-07-30 | 2021-10-08 | 长江岩土工程有限公司 | Covering layer core-taking touch probe test device and using method |
-
2003
- 2003-03-17 CN CN 03233546 patent/CN2606169Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937003A (en) * | 2012-11-08 | 2013-02-20 | 泉州市双环能源科技有限公司 | Guiding drill bit |
| CN106014258A (en) * | 2016-05-18 | 2016-10-12 | 中煤科工集团西安研究院有限公司 | Coal mine underground concentric casing directional drilling device and construction method thereof |
| CN106014258B (en) * | 2016-05-18 | 2019-03-15 | 中煤科工集团西安研究院有限公司 | Underground coal mine is with one heart with pipe directional drilling device and its construction method |
| CN110439467A (en) * | 2019-07-30 | 2019-11-12 | 长沙天和钻具机械有限公司 | A kind of reaming block formula concentric simultaneous casing drilling 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 |
| CN112252980A (en) * | 2020-09-29 | 2021-01-22 | 湖南新金刚工程机械有限公司 | Down-the-hole concentric following pipe expanding drilling tool |
| CN113482562A (en) * | 2021-07-30 | 2021-10-08 | 长江岩土工程有限公司 | Covering layer core-taking touch probe test device and using method |
| CN113482562B (en) * | 2021-07-30 | 2022-12-02 | 长江岩土工程有限公司 | Covering layer core-taking touch probe test device and using method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130317 Granted publication date: 20040310 |