CN105178864A - Expanding bit - Google Patents
Expanding bit Download PDFInfo
- Publication number
- CN105178864A CN105178864A CN201510630504.6A CN201510630504A CN105178864A CN 105178864 A CN105178864 A CN 105178864A CN 201510630504 A CN201510630504 A CN 201510630504A CN 105178864 A CN105178864 A CN 105178864A
- Authority
- CN
- China
- Prior art keywords
- guide pillar
- pipe
- reaming
- bit
- strip hole
- 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
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- Earth Drilling (AREA)
Abstract
The invention provides an expanding bit, characterized by comprising a round tube (1). The round tube (1) is symmetrically provided with a pair of elongated holes (2). An expanding edge (3) is hinged in each elongated hole (2). A guide post (4) is arranged in the round tube (1) and is provided with a slide slot (5) in the axial direction. The round tube (1) is provided with a limit bolt (1a) matching with the slide slot (5). The guide post (4) is symmetrically provided with grooves (4a) matching with the expanding edges (3). One end of the guide post (4) is connected with a bit (6). The expanding bit is simple in structure and convenient to use and is capable of effectively radially expanding the bottom of a drilled hole, so that the effect of anchoring of an anchor rope at the bottom of the drilled hole is improved.
Description
Technical field:
The invention provides a kind of rotary head, is exactly specifically a kind of reaming bit.
Background technology:
In general rock-boring construction, most in order to effects such as blast charging, geological condition detection, leting speeper, slip casting, noxious gas emission, anchorings, after aperture is determined according to projected depth, be generally latus rectum pore-forming.
In the application of borehole anchorage this respect, generally adopt chemical resin rapid stirring to solidify or inject slurries after ground tackle (anchor pole or anchor cable) hand-hole to solidify more, stretch-draw anchor is carried out after the anchoring section resin of anchor pole or anchor cable or slurries reach some strength, and this latus rectum pore-forming to there is ground tackle anchoring effect poor, solidify shortcomings such as loading complicated operation.
The content of invention:
The present invention is exactly to overcome deficiency of the prior art, provides the reaming bit that a kind of structure is simple, easy to use.
The invention provides following technical scheme:
A kind of reaming bit, it is characterized in that it comprises pipe, pipe is arranged with a pair strip hole, an all hinged reaming wing in each strip hole, a guide pillar is provided with in pipe, described guide pillar is provided with chute vertically, and on described pipe, be provided with the caging bolt with chute corresponding matching, described guide pillar is arranged with the groove with reaming wing corresponding matching, be connected with drill bit in described guide pillar one end, be provided with in the pipe end of described strip hole side the annular groove be connected with rig.
On the basis of technique scheme, following further technical scheme can also be had:
Described annular groove is provided with the screw thread with rig corresponding matching.
Be provided with a guide rod coaxial with guide pillar at the end circle centre position of the other end of guide pillar, the shaft of guide rod is provided with nut.
Round tube inner wall between described strip hole and described annular groove is provided with a ring-type limiting stand, described ring-type limiting stand forms spacing cooperation with guide pillar, and one end of described pull bar is through ring-type limiting stand.
The invention has the advantages that:
Structure of the present invention is simple, easy to use, can be connected by rig fast, easy to operate during work, working stability, and can carry out radial reaming to boring fast and effectively, and then increases the anchoring effect being arranged on interior anchor cable.
Accompanying drawing illustrates:
Fig. 1 is stereogram of the present invention;
Fig. 2 is the schematic diagram of the present invention when working.
Detailed description of the invention:
As shown in Figure 1, 2, a kind of reaming bit, it comprises pipe 1, is provided with the annular groove 1a be connected with rig in pipe 1 one end, and on the axial cell wall of annular groove, be provided with the screw thread 1b be connected with borer drill rod.
Pipe 1 wall of annular groove 1a side is arranged with a pair symmetrically arranged strip hole 2, and described strip hole 2 distributes along the axis direction of pipe 1.In each strip hole 2, be provided with a jointed shaft along its width, an all hinged reaming wing 3 on every root jointed shaft, the wing tail 3a place of the described reaming wing 3 is hinged on jointed shaft, and face, outer is circular arc.Described wing head 3b is circular arc, and on arc surface, be provided with the reaming hard-metal insert 3c of circular arc.
In pipe 1, be provided with a guide pillar 4, described guide pillar 4 arranges a chute 5 vertically, and on described pipe 1, be provided with the caging bolt 1c with chute 5 corresponding matching.Described guide pillar 4 is arranged with groove 4a in the axial direction, and described groove 4a is deep-slotted chip breaker, and forms corresponding matching with the described reaming wing 3 side sidewall.
When advancing downwards under the pressure of pipe 1 at rig, the sidewall of the described reaming wing 3 side can be subjected to displacement under groove 4a effect, and then the wing head 3b of the reaming wing 3 part is opened laterally, realize radial reaming by the reaming hard-metal insert 3c of wing head part.
Drilling rod 6a is connected with in described guide pillar 4 one end, drill bit 6 is connected with in one end of drilling rod, pipe 1 inwall of described guide pillar 4 other end extends a ring-type limiting stand 1d coaxial with pipe 1, and described ring-type limiting stand forms spacing cooperation with the end of the guide pillar other end.
Guide rod 4b is provided with vertically at the circle centre position of described guide pillar 4 other end end face, one end of described guide rod 4b is through ring-type limiting stand 1d, the shaft of described guide rod 4a and the inwall corresponding matching of ring-type limiting stand 1d, and be provided with in the end of guide rod 4b and form the spacing stop nut 4c coordinated with described ring-type limiting stand 1d.
When advancing downwards under the pressure of pipe 1 at rig, guarantee that whole device moves vertically by the guide rod 4b on guide pillar 4 and the stop nut on it and cooperatively interacting between ring-type limiting stand 1d, can not occur crooked when device is moved, guarantee the Forming Quality of reaming.
Claims (4)
1. a reaming bit, it is characterized in that it comprises pipe (1), pipe (1) is arranged with a pair strip hole (2), an all hinged reaming wing (3) in each strip hole (2), a guide pillar (4) is provided with in pipe (1), described guide pillar (4) is provided with chute (5) vertically, and on described pipe (1), be provided with the caging bolt (1a) with chute (5) corresponding matching, described guide pillar (4) is arranged with the groove (4a) with the reaming wing (3) corresponding matching, drill bit (6) is connected with in described guide pillar (4) one end, the annular groove (1a) be connected with rig is provided with in pipe (1) end of described strip hole (2) side.
2. according to a kind of reaming bit described in claim 1, it is characterized in that: be provided with and the screw thread of rig corresponding matching (1b) on described annular groove (1a).
3. according to a kind of reaming bit described in claim 1, it is characterized in that: be provided with a guide rod (4a) coaxial with guide pillar (4) at the circle centre position of the other end end of guide pillar (4), the shaft of guide rod (4a) is provided with nut (4b).
4. according to a kind of reaming bit described in claim 1, it is characterized in that: pipe (1) inwall between described strip hole (2) and described annular groove (1a) is provided with a ring-type limiting stand (1d), described ring-type limiting stand (1d) forms spacing cooperation with guide pillar (4), and one end of described pull bar (4b) is through ring-type limiting stand (1d).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510630504.6A CN105178864A (en) | 2015-09-29 | 2015-09-29 | Expanding bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510630504.6A CN105178864A (en) | 2015-09-29 | 2015-09-29 | Expanding bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105178864A true CN105178864A (en) | 2015-12-23 |
Family
ID=54901222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510630504.6A Pending CN105178864A (en) | 2015-09-29 | 2015-09-29 | Expanding bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105178864A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040211597A1 (en) * | 2003-04-23 | 2004-10-28 | Cravatte Philippe Louis | Drilling tool having an expandable bladder and method for using same |
| CN201778658U (en) * | 2010-08-05 | 2011-03-30 | 中国石油天然气集团公司 | Reaming-while-drilling device used for casing drilling |
| CN103967418A (en) * | 2014-05-05 | 2014-08-06 | 天地科技股份有限公司 | Reamer bit and anchoring method for anchor rod |
| CN203835266U (en) * | 2014-05-05 | 2014-09-17 | 天地科技股份有限公司 | Reamer bit |
| CN204024478U (en) * | 2014-08-21 | 2014-12-17 | 张陈泓 | A kind of bottom expanding drill |
| CN104806169A (en) * | 2014-01-29 | 2015-07-29 | 上海工程机械厂有限公司 | Hole expanding drill bit |
| CN205135425U (en) * | 2015-09-29 | 2016-04-06 | 中煤第三建设（集团）有限责任公司 | Reamer bit |
-
2015
- 2015-09-29 CN CN201510630504.6A patent/CN105178864A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040211597A1 (en) * | 2003-04-23 | 2004-10-28 | Cravatte Philippe Louis | Drilling tool having an expandable bladder and method for using same |
| CN201778658U (en) * | 2010-08-05 | 2011-03-30 | 中国石油天然气集团公司 | Reaming-while-drilling device used for casing drilling |
| CN104806169A (en) * | 2014-01-29 | 2015-07-29 | 上海工程机械厂有限公司 | Hole expanding drill bit |
| CN103967418A (en) * | 2014-05-05 | 2014-08-06 | 天地科技股份有限公司 | Reamer bit and anchoring method for anchor rod |
| CN203835266U (en) * | 2014-05-05 | 2014-09-17 | 天地科技股份有限公司 | Reamer bit |
| CN204024478U (en) * | 2014-08-21 | 2014-12-17 | 张陈泓 | A kind of bottom expanding drill |
| CN205135425U (en) * | 2015-09-29 | 2016-04-06 | 中煤第三建设（集团）有限责任公司 | Reamer bit |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151223 |
|
| RJ01 | Rejection of invention patent application after publication |