CN203257332U - Combined reamer bit - Google Patents
Combined reamer bit Download PDFInfo
- Publication number
- CN203257332U CN203257332U CN 201320245710 CN201320245710U CN203257332U CN 203257332 U CN203257332 U CN 203257332U CN 201320245710 CN201320245710 CN 201320245710 CN 201320245710 U CN201320245710 U CN 201320245710U CN 203257332 U CN203257332 U CN 203257332U
- Authority
- CN
- China
- Prior art keywords
- bit
- drill bit
- reaming
- drilling tool
- combined
- 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.)
- Expired - Fee Related
Links
- 238000005553 drilling Methods 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000011435 rock Substances 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model relates to a combined reamer bit. The combined reamer bit comprises a drilling tool (5). An inner drill bit (2) is arranged at one end of the drilling tool (5) and an outer drill bit (3) is arranged in front of the inner drill bit (2). The inner drill bit (2) is connected with the drilling tool (5) through threads. The outer drill bit (3) is connected with the drilling tool (5) through threads. The crosswise distance between the position of the inner drill bit (2) and the position of the outer drill bit (3) is less than or equal to 2cm. The wall thickness of the outer drill bit (3) is less than or equal to 1cm. According to the combined reamer bit, the common drill bits are connected together through the threads. The combined reamer bit is simple in structure, the service life of the combined reamer bit can be prolonged, and the reaming range of the combined reamer bit can reach hundreds of meters or even thousands of meters. Due to the fact that the combined reamer bit is formed by the common drill bits being combined, the production cost of the combined reamer bit is lowered, and the overall economy of the combined reamer bit is improved.
Description
Technical field
The utility model relates to a kind of reaming bit, relates in particular to the combination reaming bit.
Background technology
Be used for the reamer that rock pore enlarges usefulness, mainly be divided into two types of domestic and importeds according to the place of production.Domestic drill bit price is lower comparatively speaking, but generally can only reaming several meters.The reamer of import comparatively speaking price is higher, generally reaches the price of thousands of units, but reaming also can only be expanded tens meters, and that grows a little some application life also can only expand tens meters.Therefore, common reaming bit is all deposited short shortcoming in application life, and engineering is larger when needing the hole expanded longer, needs substantial contribution to put into and buys in the drill, thereby can greatly promote whole construction cost.
Summary of the invention
Not enough and the proposition such as the utility model is short, expensive for the application life that existing reaming bit has, economy is relatively poor, aim to provide long service life, combination reaming bit with low cost.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
The combination reaming bit comprises drilling tool, and drilling tool one end is provided with interior drill bit, and interior drill bit the place ahead is provided with outer drill bit.During reaming, outer drill bit is introduced into rock, and the inside and outside wall of outer drill bit all contacts with rock with end face, enters rock behind the interior drill bit, and interior drill bit falls the rotary rock drill of outer drill bit inner wall section.In ream operation, the combination reaming bit divides two steps to carry out reaming, utilizes two drill bits to share the wearing and tearing that produce in the reaming process, thereby has improved the application life of combination reaming bit.
As preferably, interior drill bit is connected with drilling tool by screw thread.The impact force that produces during reaming is larger, and utilizing is threaded can effectively guarantee the situation that interior drill bit is not subjected to displacement, thereby has guaranteed the quality of boring.
As preferably, outer drill bit is connected with drilling tool by screw thread.The impact force that produces during reaming is larger, and utilizing is threaded can effectively guarantee the situation that outer drill bit is not subjected to displacement, thereby has guaranteed the quality of boring.
As preferably, the front and back position of interior drill bit and outer drill bit distance is less than or equal to 2cm.The longitudinal separation of interior drill bit and outer drill bit is unsuitable excessive, otherwise can reduce the application life of combination reaming bit.
As preferably, the aperture of outer drill bit is greater than the aperture of interior drill bit.Outer drill bit internal diameter is a bit larger tham interior outside diameter, and is substantially suitable.
As preferably, the wall thickness of outer drill bit is less than or equal to 1cm.The wall thickness of outer drill bit is less, and its resistance is also less, can accelerate to make up the reaming speed of reaming bit, increases work efficiency.
According to the technical solution of the utility model, the combination reaming bit is threaded connection common drill bit together, in application life not only simple in structure, as can also to improve the combination reaming bit, make the combination reaming bit can reach the reaming scope of rice up to a hundred even upper km.Owing to be to utilize common drill bit to combine, thereby reduced the cost of production of combination reaming bit, improved the macroeconomic of combination reaming bit.
Description of drawings
Fig. 1 is the structural representation of the utility model combination reaming bit.
Fig. 2 is the use view of the utility model combination reaming bit.
Drill bit, the outer drill bit of 3-, 5-drilling tool, 7-screw thread, 8-flushing liquor, 9-rock in 1-guiding pipe, the 2-.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.
Embodiment 1
The combination reaming bit comprises drilling tool 5, and drilling tool 5 one ends are provided with interior drill bit 2, and interior drill bit 2 the place aheads are provided with outer drill bit 3.Utilize former and later two drill bits to carry out the reaming of two levels, the resistance that produces in the boring procedure is disperseed the wearing and tearing that slowed down drill bit.
The front and back position distance of interior drill bit 2 and outer drill bit 3 is less than or equal to 2cm.Interior drill bit 2 is unsuitable excessive with the longitudinal separation of outer drill bit 3, otherwise the application life that can reduce the combination reaming bit.The compact conformation of interior drill bit 2 and outer drill bit 3 is conducive to improve the bulk strength of combination reaming bit, thereby increases the service life.
The aperture of outer drill bit 3 is greater than the aperture of interior drill bit 2.
The wall thickness of outer drill bit 3 is less than or equal to 1cm.The wall thickness of outer drill bit 3 is less, and its resistance is also less, can accelerate to make up the reaming speed of reaming bit, increases work efficiency.
During reaming, outer drill bit 3 is introduced into rock 9, and the inside and outside wall of outer drill bit 3 all contacts with rock 9 with end face, enters rock 9 behind the interior drill bit 2, and interior drill bit 2 bores the rock 9 of outer drill bit 3 inner wall section fall.In ream operation, the combination reaming bit divides two steps to carry out reaming, utilizes two drill bits to share the wearing and tearing that produce in the reaming process, thereby has improved the application life of combination reaming bit.
The combination reaming bit is threaded connection common drill bit together, and is not only simple in structure, the application life that can also improve the combination reaming bit.Show that by experiment common drill bit expands tens meters hole at most only, the shortest hole of expanding only several meters, and the combination reaming bit can expand the hole of hundreds of rice even upper km.In addition, the combination reaming bit is as long as can use common domestic drill bit combination, and cost only needs hundreds of unit, compares with the import drill bit of thousands of units, more saves cost.And the assembling of combination reaming bit is very convenient, so the cost performance of combination reaming bit is very high.
In a word, the above only is preferred embodiment of the present utility model, and all equalizations of doing according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (6)
1. the combination reaming bit comprises drilling tool (5), it is characterized in that: drilling tool (5) one ends are provided with interior drill bit (2), and interior drill bit (2) the place ahead is provided with outer drill bit (3).
2. combination reaming bit according to claim 1, it is characterized in that: interior drill bit (2) is connected with drilling tool (5) by screw thread.
3. combination reaming bit according to claim 1, it is characterized in that: outer drill bit (3) is connected with drilling tool (5) by screw thread.
4. combination reaming bit according to claim 1 is characterized in that: the front and back position distance of interior drill bit (2) and outer drill bit (3) is less than or equal to 2cm.
5. combination reaming bit according to claim 1, it is characterized in that: the aperture of outer drill bit (3) is greater than the aperture of interior drill bit (2).
6. combination reaming bit according to claim 1, it is characterized in that: the wall thickness of outer drill bit (3) is less than or equal to 1cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320245710 CN203257332U (en) | 2013-05-07 | 2013-05-07 | Combined reamer bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320245710 CN203257332U (en) | 2013-05-07 | 2013-05-07 | Combined reamer bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203257332U true CN203257332U (en) | 2013-10-30 |
Family
ID=49469909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320245710 Expired - Fee Related CN203257332U (en) | 2013-05-07 | 2013-05-07 | Combined reamer bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203257332U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545211A (en) * | 2016-01-21 | 2016-05-04 | 盐城市中标工程装备制造有限公司 | Rock-entering drill bit structure |
| CN106869806A (en) * | 2017-03-20 | 2017-06-20 | 吉林大学 | A kind of double drill bits of moment of torsion self-balancing nested type |
| CN109083597A (en) * | 2018-09-01 | 2018-12-25 | 邹城兖矿泰德工贸有限公司 | It is anti-to expand formula composite drill bit |
-
2013
- 2013-05-07 CN CN 201320245710 patent/CN203257332U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545211A (en) * | 2016-01-21 | 2016-05-04 | 盐城市中标工程装备制造有限公司 | Rock-entering drill bit structure |
| CN105545211B (en) * | 2016-01-21 | 2018-06-29 | 盐城市中标工程装备制造有限公司 | Enter rock drill bit structure |
| CN106869806A (en) * | 2017-03-20 | 2017-06-20 | 吉林大学 | A kind of double drill bits of moment of torsion self-balancing nested type |
| CN109083597A (en) * | 2018-09-01 | 2018-12-25 | 邹城兖矿泰德工贸有限公司 | It is anti-to expand formula composite drill bit |
| CN109083597B (en) * | 2018-09-01 | 2020-03-17 | 邹城兖矿泰德工贸有限公司 | Reverse expansion type composite drill bit |
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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: 20131030 Termination date: 20160507 |