CN102644440B - reamer - Google Patents
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- Publication number
- CN102644440B CN102644440B CN201110040260.8A CN201110040260A CN102644440B CN 102644440 B CN102644440 B CN 102644440B CN 201110040260 A CN201110040260 A CN 201110040260A CN 102644440 B CN102644440 B CN 102644440B
- Authority
- CN
- China
- Prior art keywords
- dowel bar
- reamer
- limit cutter
- long
- drill bit
- 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.)
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Links
- 238000005553 drilling Methods 0.000 claims abstract description 9
- 239000002689 soil Substances 0.000 claims abstract description 6
- 238000003466 welding Methods 0.000 claims abstract description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 8
- 239000012736 aqueous medium Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
A kind of reamer, for rotary drilling rig, comprises and cuts native limit cutter (1), dowel bar (2) and drill bit (6), it is characterized in that: described in cut native limit cutter (1), in axe-shape, its one end is for cutting soil end, long 10 ~ 20cm, thick 1 ~ 3mm, the other end is link, long 5 ~ 15cm, thick 3 ~ 7cm; Described dowel bar (2), one end is welded admittedly with the link cutting native limit cutter (1), and the other end is provided with some pinned holes, described dowel bar (2) long 20 ~ 30cm, wide 4 ~ 8cm, high 4 ~ 8cm; Described drill bit (6), has fastening devices (3) at welding edges, and dowel bar (2) is fixed by pinned hole (5) by described fastening devices (3) pin (4).It is simple, easy to make that reamer of the present invention has structure, operates convenient, safe and reliable and that efficiency of construction is high, cost is low advantage.
Description
Technical field
The present invention relates to a kind of reaming utensil of rotary drilling rig, specifically, is a kind of reamer expanding pore-forming for rotary drilling rig.
Background technology
Bored pile by churning drive construction process of bored concrete pile has drawn a kind of novel construction process that various pore-forming technique superiority development gets up.From the installation of rig, drilling rod and drill bit, dismounting and use, it save a large amount of manpowers, improve mechanization degree, alleviate labour intensity, thus accelerate programming; Technique, it instead of aqueous medium pore-forming soil extracting process, greatly reduces demand and the discharge of mud.But because bored pile by churning drive grout pile footpath kind is more, need the drill bit quantity of configuration also more in work progress, cost is higher, and may frequently change, and affects efficiency of construction.
Therefore there is above-mentioned all inconvenience and problem in known Spiral digging machine construction.
Summary of the invention
Object of the present invention, is to propose a kind ofly to make that structure is simple, operating efficiency is high, easy to operate, the reamer that do not need to configure special aperture drill bit.
For achieving the above object, technical solution of the present invention is:
A kind of reamer, for rotary drilling rig, comprise and cut native limit cutter, dowel bar and drill bit, is characterized in that:
Describedly cut native limit cutter, in axe-shape, its one end for cutting soil end, long 10 ~ 20cm, thick 1 ~ 3mm, the other end is link, long 5 ~ 15cm, thick 3 ~ 7cm;
Described dowel bar, the link of one end and soil-cutter welds admittedly, and the other end is provided with some pinned holes, described dowel bar long 20 ~ 30cm, wide 4 ~ 8cm, high 4 ~ 8cm;
Described drill bit, has fastening devices at its welding edges, and dowel bar is fixed by pinned hole by described fastening devices pin.
Reamer of the present invention can also be further achieved by the following technical measures.
Aforesaid reamer, wherein said to cut native limit cutter material be carbide alloy.
Aforesaid reamer, the wherein said blade line cutting native limit cutter is arranged to the longitudinal axes parallel with described drill bit.
Aforesaid reamer, the pinned hole diameter of wherein said dowel bar (2) is 1 ~ 3cm.
After adopting technique scheme, reamer of the present invention has the following advantages:
1, drill bit configuration quantity is reduced, cost-saving;
2, reduce drill bit frequently to change, improve efficiency of construction;
3, structure is simple, easy to make;
4, operation is convenient, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the underreamer device floor map of the embodiment of the present invention;
Fig. 2 is the underreamer device elevational schematic view of the embodiment of the present invention.
In figure: 1 cuts native limit cutter, 2 dowel bars, 3 fastening devicess, 4 pins, 5 pinned holes, 6 drill bits.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing thereof, the present invention is illustrated further.
Embodiment 1
Now refer to Fig. 1 and Fig. 2, Fig. 1 is the underreamer device floor map of the embodiment of the present invention, and Fig. 2 is the underreamer device elevational schematic view of the embodiment of the present invention.As shown in the figure, described in cut native limit cutter 1, material is carbide alloy, in axe-shape, its one end for cut soil end, long 20cm, thick 3mm, the other end is link, long 15cm, thick 5cm; The described blade line cutting native limit cutter 1 is arranged to the longitudinal axes parallel with described drill bit 6;
Described dowel bar 2, the link of one end and soil-cutter 1 welds admittedly, and the other end is provided with three pinned holes, the long 30cm of described dowel bar 2, wide 8cm, high 8cm; The pinned hole of described dowel bar 2 also by making pin insert diverse location, regulates the size of boring, changes the radius of reaming;
Described drill bit 6, has fastening devices 3 at welding edges, and dowel bar 2 is fixed by pinned hole 5 by described fastening devices 3 pin 4; The pinned hole diameter of described dowel bar 2 is 3cm.
The course of work of reamer of the present invention is as follows: before rotary drilling rig creeps into, and according to castinplace pile pore size, by making pin insert different pinned holes, reasonable adjusting reaming radius, then inserts pin, and fixing reamer, wait is crept into.Rotary drilling rig, in drilling process, is cut soil by what cut native limit cutter, is expanded into bore dia.
Above embodiment is used for illustrative purposes only, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, can also make various conversion or change.Therefore, all equivalent technical schemes also should belong to category of the present invention, should be limited by each claim.
Claims (5)
1. a reamer, for rotary drilling rig, comprises and cuts native limit cutter (1), and dowel bar (2) and drill bit (6), is characterized in that:
Describedly cut native limit cutter (1), in axe-shape, its one end for cutting soil end, long 10 ~ 20cm, thick 1 ~ 3mm, the other end is link, long 5 ~ 15cm, thick 3 ~ 7cm;
Described dowel bar (2), one end is welded admittedly with the link cutting native limit cutter (1), and the other end is provided with some pinned holes, described dowel bar (2) long 20 ~ 30cm, wide 4 ~ 8cm, high 4 ~ 8cm;
Described drill bit (6), has fastening devices (3) at welding edges, and dowel bar (2) is fixed by pinned hole (5) by described fastening devices (3) pin (4).
2. reamer as claimed in claim 1, is characterized in that, described in cut native limit cutter (1) material be carbide alloy.
3. reamer as claimed in claim 1, is characterized in that, the pinned hole by making pin insert diverse location of described dowel bar (2), regulates boring size, change the radius of reaming.
4. reamer as claimed in claim 1, is characterized in that, described in cut native limit cutter (1) blade line be arranged to the longitudinal axes parallel with described drill bit (6).
5. reamer as claimed in claim 1, it is characterized in that, the pinned hole diameter of described dowel bar (2) is 1 ~ 3cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110040260.8A CN102644440B (en) | 2011-02-18 | 2011-02-18 | reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110040260.8A CN102644440B (en) | 2011-02-18 | 2011-02-18 | reamer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102644440A CN102644440A (en) | 2012-08-22 |
| CN102644440B true CN102644440B (en) | 2015-09-02 |
Family
ID=46657496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110040260.8A Active CN102644440B (en) | 2011-02-18 | 2011-02-18 | reamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102644440B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481397B (en) * | 2014-12-05 | 2016-08-24 | 国网山东省电力公司潍坊供电公司 | Rectangular opening drilling and digging machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2418247Y (en) * | 2000-02-13 | 2001-02-07 | 剪树旭 | Synchronous reamer |
| CN2453105Y (en) * | 2000-11-02 | 2001-10-10 | 辽河石油勘探局工程技术研究院 | Under-reaming tool for small hole |
| CN2685530Y (en) * | 2004-03-09 | 2005-03-16 | 伍利钱 | Drill bits for enlarging the borehole |
| GB2461312B (en) * | 2008-06-27 | 2012-06-13 | Deep Casing Tools Ltd | Reaming tool |
| CN101518893A (en) * | 2009-04-28 | 2009-09-02 | 南通市神马电力科技有限公司 | Clamp pull rod |
-
2011
- 2011-02-18 CN CN201110040260.8A patent/CN102644440B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102644440A (en) | 2012-08-22 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |