CN201292767Y - Eccentric boring tool - Google Patents
Eccentric boring tool Download PDFInfo
- Publication number
- CN201292767Y CN201292767Y CNU2008201590824U CN200820159082U CN201292767Y CN 201292767 Y CN201292767 Y CN 201292767Y CN U2008201590824 U CNU2008201590824 U CN U2008201590824U CN 200820159082 U CN200820159082 U CN 200820159082U CN 201292767 Y CN201292767 Y CN 201292767Y
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- eccentric
- drilling
- drill bit
- bit
- utility
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Abstract
The utility model discloses an eccentric drilling tool which comprises a rod stabilizer (5) and a drill bit arranged on the rod stabilizer (5), wherein the drill bit is an eccentric drill bit (1), and an eccentric sleeve (2) is arranged on the eccentric drill bit (1) which is arranged on the rod stabilizer (5) by a locking system (6). The eccentric drilling tool is used for drilling with a pipe in a covering rock layer and a loosening rock layer and has the advantages of high precision of a drilling hole, long service life, simple and reliable structure and convenient operation.
Description
Technical field
The utility model relates to a kind of drilling tool, particularly relates to a kind of eccentric drilling device of the drilling tool reaming work in weak stratum.
Background technology
Drilling and blasting work under weak stratum and covering layer, because the rock stratum, upper strata is soft or one deck overburden arranged, therefore in drilling and blasting, can't get out the aperture of shaping, must in the ravelly ground of upper strata, be fixed shaping, just can carry out the darker work of creeping into.Owing to there is not suitable boring means, the middle great majority that creep in the past all adopt secondary drilling in the drilling and blasting work under weak stratum and covering layer, therefore, boring cost height, efficient is low, complicated operation., the utility model eccentric drilling device has solved the drilling tool reaming work in weak stratum just
The utility model content
Problem to be solved in the utility model provide a kind of can be under weak stratum and covering layer the efficient height of drilling and forming hole, the eccentric drilling device of dependable performance.
In order to solve the problems of the technologies described above, the eccentric drilling device that the utility model provides comprises virtual calibrator for instrument transformer and the drill bit that is installed on the virtual calibrator for instrument transformer, and described drill bit is an off-balance bit, is provided with eccentric bushing on described off-balance bit.
Described off-balance bit is installed on the described virtual calibrator for instrument transformer by locking system.
Adopt the eccentric drilling device of technique scheme, in drilling system, designed eccentric bushing, when rock drilling work begins, in drilling process, eccentric bushing screws out along the centre pilot drill bit, and eccentric bushing becomes big with center off-centre with drilling diameter, begin reaming simultaneously and advance simultaneously, so that put into the fixedly sleeve pipe of ravelly ground to guarantee sleeve pipe and drilling system.With after pipe bit enters the position, counter-rotating carefully, the eccentric bushing cycle, and the eccentric drilling device system extracted from sleeve pipe.Sleeve pipe is upwards pulled out, and sleeve pipe or other filler are starched, put into to the sprinkling irrigation concrete at the bottom of the hole simultaneously.In basement rock, adopt conventional drilling tool to creep into to reach desired depth.Therefore, keep the upper strata ravelly ground and can not collapse, so that the hole of the new moulding of bottom has been flowed or blow over and cover completely, reached the effect of working preferably, improved production efficiency greatly, saved the boring cost.Get in touch off-balance bit and virtual calibrator for instrument transformer, dependable performance, convenient disassembly with locking system.
In sum, the utility model be a kind of can be under weak stratum and covering layer the efficient height of drilling and forming hole, dependable performance has reached the effect of working preferably, has improved production efficiency greatly, has saved the eccentric drilling device of boring cost.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
Below in conjunction with accompanying drawing and concrete embodiment the utility model eccentric drilling device is described further.
Referring to Fig. 1, virtual calibrator for instrument transformer 5 is provided with outer tube 4 and shoe 3, and off-balance bit 1 is installed on the virtual calibrator for instrument transformer 5 by locking system 6, is provided with eccentric bushing 2 on off-balance bit 1.
Referring to Fig. 1, its operating principle is:
When 1, rock drilling work began, virtual calibrator for instrument transformer 5 drove off-balance bits 1 and creeps into, at a high speed the off-balance bit 1 of rotation and eccentric bushing 2 while creeping into to around reaming, advance simultaneously to guarantee sleeve pipe and drilling system;
2, with after pipe bit enters the position, counter-rotating carefully, off-balance bit 1 and eccentric bushing 2 cycles, and the eccentric drilling device system extracted from sleeve pipe;
3, sleeve pipe is upwards pulled out, sleeve pipe or other filler are starched, put into to the sprinkling irrigation concrete at the bottom of the hole simultaneously;
4, in basement rock, adopt conventional drilling tool to creep into to reach desired depth.
Therefore, keep the upper strata ravelly ground and can not collapse, so that the hole of the new moulding of bottom has been flowed or blow over and cover completely, reached the effect of working preferably, improved production efficiency greatly, saved the boring cost.
The utility model eccentric drilling device, be mainly used in the drilling and blasting work under weak stratum and the covering layer, because the rock stratum, upper strata is soft or one deck overburden arranged, therefore in drilling and blasting, can't get out the aperture of shaping, must in the ravelly ground of upper strata, be fixed shaping, just can carry out the darker work of creeping into, the utility model eccentric drilling device has solved the drilling tool reaming work in weak stratum just.
Claims (2)
1, a kind of eccentric drilling device comprises virtual calibrator for instrument transformer (5) and is installed in drill bit on the virtual calibrator for instrument transformer (5) that it is characterized in that: described drill bit is off-balance bit (1), is provided with eccentric bushing (2) on described off-balance bit (1).
2, eccentric drilling device according to claim 1 is characterized in that: described off-balance bit (1) is installed on the described virtual calibrator for instrument transformer (5) by locking system (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201590824U CN201292767Y (en) | 2008-11-07 | 2008-11-07 | Eccentric boring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201590824U CN201292767Y (en) | 2008-11-07 | 2008-11-07 | Eccentric boring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201292767Y true CN201292767Y (en) | 2009-08-19 |
Family
ID=41006242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201590824U Expired - Fee Related CN201292767Y (en) | 2008-11-07 | 2008-11-07 | Eccentric boring tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201292767Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538856A (en) * | 2009-04-15 | 2009-09-23 | 曾庆义 | Construction method of anchor rod with expanded head |
| CN102230362A (en) * | 2010-06-01 | 2011-11-02 | 鞍钢集团矿业公司 | Geared drill stabilizer repairing method |
| CN106639914A (en) * | 2016-12-08 | 2017-05-10 | 长沙黑金刚实业有限公司 | Eccentric casing drilling tool |
| CN107165579A (en) * | 2017-05-22 | 2017-09-15 | 长江大学 | Soil compaction type is with pipe off-balance bit |
| CN111058772A (en) * | 2019-12-27 | 2020-04-24 | 长沙黑金刚实业有限公司 | Eccentric drilling tool |
-
2008
- 2008-11-07 CN CNU2008201590824U patent/CN201292767Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538856A (en) * | 2009-04-15 | 2009-09-23 | 曾庆义 | Construction method of anchor rod with expanded head |
| CN102230362A (en) * | 2010-06-01 | 2011-11-02 | 鞍钢集团矿业公司 | Geared drill stabilizer repairing method |
| CN106639914A (en) * | 2016-12-08 | 2017-05-10 | 长沙黑金刚实业有限公司 | Eccentric casing drilling tool |
| CN107165579A (en) * | 2017-05-22 | 2017-09-15 | 长江大学 | Soil compaction type is with pipe off-balance bit |
| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090819 Termination date: 20111107 |