CN104196454A - Deflecting and counterboring drilling tool - Google Patents
Deflecting and counterboring drilling tool Download PDFInfo
- Publication number
- CN104196454A CN104196454A CN201410447539.1A CN201410447539A CN104196454A CN 104196454 A CN104196454 A CN 104196454A CN 201410447539 A CN201410447539 A CN 201410447539A CN 104196454 A CN104196454 A CN 104196454A
- Authority
- CN
- China
- Prior art keywords
- drilling tool
- deflecting
- drill bit
- counterboring
- 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.)
- Pending
Links
Abstract
The invention relates to a deflecting and counterboring drilling tool which comprises a drilling tool body. The drilling tool body comprises a plurality of drill bits sequentially and vertically arranged from large to small. The adjacent drill bits are fixedly connected through connecting rods, and the drill bit at the uppermost end is fixedly connected with a drill rod through a connecting sleeve. When the deflecting and counterboring drilling tool is used for drilling, due to the fact that the drill bit at the lowest end is small, the deflecting and counterboring drilling tool can carry out offset turning if the drilling tool encounters hard stratum points, the hard stratum points are avoided, accidents are avoided, drill bit damage and drill rod deformation are avoided, and work reliability and safety are improved.
Description
Technical field
The present invention relates to geological prospecting apparatus field, relate in particular to the drilling rod of rig.
Background technology
Drilling rod is the critical component in rig, and its end connects drilling tool.In prior art, drilling tool is that single form is assemblied on drilling rod, and when work, drilling tool is followed drilling rod rotation to underground rock rubbing, and realization drills through.The defect that this drilling tool exists is: in the time touching underground hard lithostratigraphy, because the diameter of drilling tool is larger, can not be offset firm hard formation point, can only force it to rub and drill through, it exists, and drill bit is fragile, drilling rod is yielding, drill through the shortcoming that efficiency is not high.
Summary of the invention
The shortcoming that the applicant exists for above-mentioned prior art, studies and improves, and provides a kind of and can depart from firm hard formation point, drills through that efficiency is high, the deflecting borehole-enlarging drilling tool of reliable operation.
The technical solution adopted in the present invention is as follows:
A kind of deflecting borehole-enlarging drilling tool, comprises drilling tool body, and described drilling tool body comprises to be arranged up and down successively and between adjacent drill bit, be connected by connecting rod to little multiple drill bits from large, and drill bit is topmost connected by adapter sleeve and drilling rod.
Further improvement as technique scheme:
Described drilling tool body at least comprises 3 drill bits.
The diameter of described connecting rod reduces from top to bottom successively.
Beneficial effect of the present invention is as follows:
The present invention is in the time drilling, and because drill bit is bottom less, if while running into hard stratum point, it can be offset break-in, avoids the hard point in stratum, tries to avert accidents, and avoids drill bit to damage and drilling rod distortion, improves functional reliability and safety.
Brief description of the drawings
Fig. 1 is three-dimensional structure diagram of the present invention.
Fig. 2 is front view of the present invention.
In figure: 1, drill bit; 2, connecting rod; 3, adapter sleeve.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
As shown in Figures 1 and 2, the deflecting borehole-enlarging drilling tool of the present embodiment, comprises drilling tool body, and drilling tool body comprises arranges and successively up and down from large to little multiple drill bits 1, between adjacent drill bit 1, be connected by connecting rod 2, drill bit 1 is topmost connected by adapter sleeve 3 and drilling rod.
Drilling tool body at least comprises 3 drill bits 1, and the diameter of the connecting rod 2 between drill bit 1 reduces from top to bottom successively.
The present invention is in the time drilling, and because drill bit is bottom less, if while running into hard stratum point, it can be offset break-in, avoids the hard point in stratum, tries to avert accidents, and avoids drill bit to damage and drilling rod distortion, improves functional reliability and safety.
More than describing is explanation of the invention, is not the restriction to invention, and limited range of the present invention is referring to claim, and without prejudice to spirit of the present invention in the situation that, the present invention can do any type of amendment.
Claims (3)
1. a deflecting borehole-enlarging drilling tool, comprise drilling tool body, it is characterized in that: described drilling tool body comprises arranges and successively up and down from large to little multiple drill bits (1), between adjacent drill bit (1), be connected by connecting rod (2), drill bit (1) is topmost connected by adapter sleeve (3) and drilling rod.
2. according to deflecting borehole-enlarging drilling tool described in claim 1, it is characterized in that: described drilling tool body (1) at least comprises 3 drill bits (1).
3. according to deflecting borehole-enlarging drilling tool described in claim 1, it is characterized in that: the diameter of described connecting rod (2) reduces from top to bottom successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410447539.1A CN104196454A (en) | 2014-09-03 | 2014-09-03 | Deflecting and counterboring drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410447539.1A CN104196454A (en) | 2014-09-03 | 2014-09-03 | Deflecting and counterboring drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104196454A true CN104196454A (en) | 2014-12-10 |
Family
ID=52081803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410447539.1A Pending CN104196454A (en) | 2014-09-03 | 2014-09-03 | Deflecting and counterboring drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104196454A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0962620A2 (en) * | 1998-05-28 | 1999-12-08 | Diamond Products International, Inc. | A two-stage drill bit |
| US6488103B1 (en) * | 2001-01-03 | 2002-12-03 | Gas Research Institute | Drilling tool and method of using same |
| CN2611572Y (en) * | 2003-03-21 | 2004-04-14 | 袁啟法 | Combined rock drill |
| CN1791732A (en) * | 2003-05-21 | 2006-06-21 | 国际壳牌研究有限公司 | Drill bit and drilling system with underreamer- and stabilisation-section |
| JP2006194029A (en) * | 2005-01-17 | 2006-07-27 | Tenox Corp | Excavating bit and construction method for anchor by use of it |
| CN102071876A (en) * | 2011-01-13 | 2011-05-25 | 河南理工大学 | Multistage reducing combined drilling tool |
| CN102199994A (en) * | 2011-01-13 | 2011-09-28 | 河南理工大学 | Multi-level variable-diameter drilling tool |
| CN204139967U (en) * | 2014-09-03 | 2015-02-04 | 无锡中地地质装备有限公司 | Deflecting borehole-enlarging drilling tool |
-
2014
- 2014-09-03 CN CN201410447539.1A patent/CN104196454A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0962620A2 (en) * | 1998-05-28 | 1999-12-08 | Diamond Products International, Inc. | A two-stage drill bit |
| US6488103B1 (en) * | 2001-01-03 | 2002-12-03 | Gas Research Institute | Drilling tool and method of using same |
| CN2611572Y (en) * | 2003-03-21 | 2004-04-14 | 袁啟法 | Combined rock drill |
| CN1791732A (en) * | 2003-05-21 | 2006-06-21 | 国际壳牌研究有限公司 | Drill bit and drilling system with underreamer- and stabilisation-section |
| JP2006194029A (en) * | 2005-01-17 | 2006-07-27 | Tenox Corp | Excavating bit and construction method for anchor by use of it |
| CN102071876A (en) * | 2011-01-13 | 2011-05-25 | 河南理工大学 | Multistage reducing combined drilling tool |
| CN102199994A (en) * | 2011-01-13 | 2011-09-28 | 河南理工大学 | Multi-level variable-diameter drilling tool |
| CN204139967U (en) * | 2014-09-03 | 2015-02-04 | 无锡中地地质装备有限公司 | Deflecting borehole-enlarging drilling tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141210 |