CN204511327U - The anti-eccentric drill bit structure of tunnel anchoring boring - Google Patents
The anti-eccentric drill bit structure of tunnel anchoring boring Download PDFInfo
- Publication number
- CN204511327U CN204511327U CN201520202734.8U CN201520202734U CN204511327U CN 204511327 U CN204511327 U CN 204511327U CN 201520202734 U CN201520202734 U CN 201520202734U CN 204511327 U CN204511327 U CN 204511327U
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- drill bit
- positioning sleeve
- bias
- morse
- hole
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Abstract
The anti-eccentric drill bit structure of tunnel anchoring boring, this tunnel anti-eccentric drill bit structure of anchoring boring has one to coincide the anti-bias positioning sleeve be connected with rig lower end trousers groove, one end of described anti-bias positioning sleeve is the linkage section in Morse's taper, linkage section coincide and interts in the trousers groove of rig, be fixedly connected with integral to make rig with anti-bias positioning sleeve, the other end of anti-bias positioning sleeve is in " T " shape, its end is the surface plate vertical with drill bit, in the axial circular hole front end of anti-bias positioning sleeve, be provided with the isometrical circular hole with bit diameter snug sliding fit, it is the Morse's taper hole with drill bit joint match at the rear portion of isometrical circular hole, horizontal removal hole is provided with in the side of rear end, Morse's taper hole.The anti-bias heart drill bit structure of this tunnel anchoring not only structure is simple, and easy to use, more bit change rapidly and efficiently, can keep concentric, greatly can improve the drilling efficiency of anchor pole, anchor cable during the successively boring of different-diameter drill bit.
Description
Technical field
the present invention relates to the anchor pole of underground structure supporting operation, the drill bit structure of anchor cable, particularly relate to the anti-eccentric drill bit structure of a kind of tunnel anchoring boring.
Background technology
in underground construction, mining engineering, foundation ditch and slope project process that geotechnical engineering relates to, cave in for preventing stratum deformation or unstability and jeopardize safety, a kind of main support technology that formation carries out reinforcing adopts anchor pole, anchor cable, along with the raising of support technology, the form of anchor pole, anchor cable is diversified gradually, in the boring procedure of anchor pole, anchor cable, there is the situation that same boring aperture is inconsistent.In practice of construction, need the phenomenon adopting the drill bit of different-diameter to hole respectively, greatly have impact on efficiency of construction.Moreover, owing to adopting the drill bit successively boring of different pore size, the phenomenon of the different pore size section decentraction of same anchor pole, anchor cable hole is easily caused.Make anchor pole, anchor cable install after with design conditions there is deviation, even make anchor pole, anchor cable be difficult to installation.Especially for anchor cable, due to boring decentraction, there is shear stress after easily causing anchor cable to install, make anchor cable there is potential safety hazard in Bracing Process.As can be seen here, for the boring that there is different pore size section, the mode of existing employing different-diameter drill bit successively boring, obviously still has inconvenience and defect, therefore, provides a kind of tunnel anti-eccentric drill bit structure of anchoring boring just very necessary.
Summary of the invention
in order to the mode overcoming the successively boring of existing employing different-diameter drill bit exists the problem of boring decentraction.The utility model provides the anti-eccentric drill bit structure of a kind of tunnel anchoring boring, the anti-bias heart drill bit structure of this tunnel anchoring can not only make to keep with one heart during the successively boring of different-diameter drill bit, and more bit change makes simple and convenient, the drilling efficiency of anchor pole, anchor cable can be improved.
the utility model solves the technical scheme that its technical problem adopts: the anti-eccentric drill bit structure of tunnel anchoring boring, comprising: anti-bias positioning sleeve, surface plate, isometrical circular hole, Morse's taper hole, horizontal removal hole, linkage section, rig, this tunnel anchoring anti-bias heart drill bit structure has one to coincide the anti-bias positioning sleeve be connected with rig lower end trousers groove, one end of described anti-bias positioning sleeve is the linkage section in Morse's taper, linkage section coincide and interts in the trousers groove of rig, be fixedly connected with integral to make rig with anti-bias positioning sleeve, the other end of anti-bias positioning sleeve is in " T " shape, its end is the surface plate vertical with drill bit, in the axial circular hole front end of anti-bias positioning sleeve, be provided with the isometrical circular hole with bit diameter snug sliding fit, it is the Morse's taper hole with drill bit joint match at the rear portion of isometrical circular hole, Morse's taper hole can make drill bit self-centering when mounted fix, isometrical circular hole, can make drill bit fix more stable, prevents from occurring deviation during hole machined, is provided with horizontal removal hole in the side of rear end, Morse's taper hole, for drill bit dismounting after a procedure and replacing.
the beneficial effects of the utility model are: not only structure is simple for the anti-eccentric drill bit structure of this tunnel anchoring boring, easy to use, more bit change rapidly and efficiently, can keep concentric, greatly can improve the drilling efficiency of anchor pole, anchor cable during the successively boring of different-diameter drill bit.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the utility model is further illustrated.
accompanying drawing is structural principle schematic diagram of the present utility model.
1. anti-bias positioning sleeve, 2. surface plates, 3. isometrical circular hole, 4. Morse's taper hole, 5. horizontal removal hole, 6. linkage section, 7. rig in figure.
Detailed description of the invention
in the drawings, the anti-eccentric drill bit structure of tunnel anchoring boring, comprising: anti-bias positioning sleeve 1, surface plate 2, isometrical circular hole 3, Morse's taper hole 4, horizontal removal hole 5, linkage section 6, rig 7, this tunnel anti-eccentric drill bit structure of anchoring boring has one to coincide the anti-bias positioning sleeve 1 be connected with rig 7 lower end trousers groove, one end of described anti-bias positioning sleeve 1 is the linkage section 6 in Morse's taper, linkage section 6 coincide and interts in the trousers groove of rig 7, be fixedly connected with integral to make rig 7 with anti-bias positioning sleeve 1, the other end of anti-bias positioning sleeve 1 is in " T " shape, its end is the surface plate 2 vertical with drill bit, in the axial circular hole front end of anti-bias positioning sleeve 1, be provided with the isometrical circular hole 3 with bit diameter snug sliding fit, the Morse's taper holes 4 with drill bit joint match at the rear portion of isometrical circular hole 3, Morse's taper hole 4 can make drill bit self-centering when mounted fix, isometrical circular hole 3, can make drill bit fix more stable, prevents from occurring deviation during hole machined, is provided with horizontal removal hole 5 in the side of rear end, Morse's taper hole 4, for drill bit dismounting after a procedure and replacing.
Claims (1)
1.
the anti-eccentric drill bit structure of tunnel anchoring boring, comprising: anti-bias positioning sleeve (1), surface plate (2), isometrical circular hole (3), Morse's taper hole (4), horizontal removal hole (5), linkage section (6), rig (7), it is characterized in that: this tunnel anchoring anti-bias heart drill bit structure has one to coincide the anti-bias positioning sleeve (1) be connected with rig (7) lower end trousers groove, one end of described anti-bias positioning sleeve (1) is the linkage section (6) in Morse's taper, linkage section (6) coincide and interts in the trousers groove of rig (7), be fixedly connected with integral to make rig (7) with anti-bias positioning sleeve (1), the other end of anti-bias positioning sleeve (1) is in " T " shape, its end is the surface plate (2) vertical with drill bit, in the axial circular hole front end of anti-bias positioning sleeve (1), be provided with the isometrical circular hole (3) with bit diameter snug sliding fit, it is the Morse's taper hole (4) with drill bit joint match at the rear portion of isometrical circular hole (3), horizontal removal hole (5) is provided with in the side of Morse's taper hole (4) rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520202734.8U CN204511327U (en) | 2015-04-07 | 2015-04-07 | The anti-eccentric drill bit structure of tunnel anchoring boring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520202734.8U CN204511327U (en) | 2015-04-07 | 2015-04-07 | The anti-eccentric drill bit structure of tunnel anchoring boring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204511327U true CN204511327U (en) | 2015-07-29 |
Family
ID=53709320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520202734.8U Expired - Fee Related CN204511327U (en) | 2015-04-07 | 2015-04-07 | The anti-eccentric drill bit structure of tunnel anchoring boring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204511327U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368725A (en) * | 2016-11-25 | 2017-02-01 | 中国矿业大学 | Pore-broadening self-rotating anchor rod and use method |
| CN109648124A (en) * | 2019-01-25 | 2019-04-19 | 江苏万金精密工具有限公司 | A kind of drilling attachment |
-
2015
- 2015-04-07 CN CN201520202734.8U patent/CN204511327U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368725A (en) * | 2016-11-25 | 2017-02-01 | 中国矿业大学 | Pore-broadening self-rotating anchor rod and use method |
| CN109648124A (en) * | 2019-01-25 | 2019-04-19 | 江苏万金精密工具有限公司 | A kind of drilling attachment |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20160407 |