CN203822161U - Connecting device of drill bit - Google Patents
Connecting device of drill bit Download PDFInfo
- Publication number
- CN203822161U CN203822161U CN201420054207.2U CN201420054207U CN203822161U CN 203822161 U CN203822161 U CN 203822161U CN 201420054207 U CN201420054207 U CN 201420054207U CN 203822161 U CN203822161 U CN 203822161U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- connecting device
- circular hole
- round hole
- guide rod
- 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 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000006978 adaptation Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to the field of the drill bit accessories and specifically relates to a connecting device of a drill bit of an underground geologic prospecting drilling machine. The connecting device comprises a reducing adapter and a guide rod; a round hole I is formed to penetrate through the reducing adapter in the axial direction, internal threads are formed on the two ends of the round hole I, and external threads are further formed on one end of the reducing adapter; external threads are formed on one end of the guide rod and matched with the internal threads of the end, provided with the external threads, of the reducing adapter, a round hole II is formed in the threaded end of the guide rod in the axial direction, and a round hole III is formed in the outer wall of the guide rod and communicated with the round hole II. The connecting device of the drill bit is capable of completing hole expansion at a time so that the hole expanding time is saved and the hole expanding efficiency is improved; the connecting device is simple in structure and low in manufacturing cost.
Description
Technical field
The utility model relates to the field of drill equipment, is specifically related to a kind of linkage of cheating interior geological exploration drill bit of drilling machine.
Background technology
In hole in geological exploration drilling operation process, in producing, need, the limitation of work plane can only be beaten with the rig in 46mm aperture the hole of 100mm, so first accomplish fluently boring with little drill bit, and then by drill bit reaming, but drilling tool can only be installed little drill bit, in the time of reaming, can only use little drill bit to carry out reaming; Find in operation, while carrying out reaming with little drill bit, easily make the sideslip of holing, produce a large amount of rock dust in reaming process, will cause stick of tool tool if rock dust can not be discharged, because the hardness of little drill bit is not high, easily cause little Drill Crack, be trapped in boring and can not take out, reaming causes boring to be scrapped smoothly, thereby has increased bore operation cost, and operating personnel utilize bradawl head reaming workload large.
Utility model content
The utility model provides a kind of linkage that interior geological exploration small-bore rig connects large aperture drill bit of cheating.
To achieve these goals, the technical solution adopted in the utility model is:
A linkage for drill bit, this linkage includes reducing catcher and correcting bar, in the axial direction of described reducing catcher, is through with circular hole I, and the two ends of this circular hole I are respectively equipped with internal thread, and one end of described reducing catcher is also provided with external screw thread; One end of described correcting bar is provided with external screw thread, this external screw thread matches with the internal thread that described reducing catcher is provided with male end, the axial direction that described correcting bar is provided with the end of thread is provided with circular hole II, and described correcting bar outer wall is provided with circular hole III and connects with described circular hole II.
The beneficial effects of the utility model are:
Can geological exploration in hole is arranged on the rig of small-bore and be used with large aperture drill bit by the utility model, and the utility model be provided with correcting bar, can guarantee that large aperture drill bit can sideslip.The utility model can once can complete reaming, has saved pore-enlargement, has improved reaming efficiency, and simple in structure, cheap.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
As shown in the figure, a kind of linkage of drill bit, this linkage includes reducing catcher 1 and correcting bar 2, described reducing catcher 1 and correcting bar 2 are all processed by cylindrical steel, in the axial direction of described reducing catcher 1, be through with circular hole I 11, the two ends of this circular hole I 11 are respectively equipped with internal thread, and one end of described reducing catcher 1 is also provided with external screw thread; One end of described correcting bar 2 is provided with external screw thread, the axial direction that correcting bar 2 is provided with the end of thread is provided with circular hole II 21, described correcting bar 2 outer walls are provided with four circular hole III 22 and connect with described circular hole circular hole II 21, and four described circular hole III 22 are distributed on the outer wall of correcting bar 2.
In use, reducing catcher 1 is provided with adaptive connection of internal thread of male end by the external screw thread on correcting bar 2 and reducing catcher 1 with correcting bar 2, described reducing catcher 1 is connected with the internal thread adaptation on the drill bit of large aperture with the external screw thread that large aperture drill bit is taken on 1 by reducing, and described reducing catcher 1 is taken over the internal thread of the other end on 1 and is connected with the external screw thread adaptation on borer drill rod by reducing with borer drill rod; Between described circular hole and circular hole, be interconnected, in rig work be, cooling water can offer drill bit by circular hole.While carrying out reaming by the utility model, can once can complete reaming, save pore-enlargement, improve reaming efficiency, reduce operating personnel's labour intensity.
Claims (1)
1. the linkage of a drill bit, it is characterized in that: this linkage includes reducing catcher (1) and correcting bar (2), in the axial direction of described reducing catcher (1), be through with circular hole I (11), the two ends of this circular hole I (11) are respectively equipped with internal thread, and one end of described reducing catcher (1) is also provided with external screw thread; One end of described correcting bar (2) is provided with external screw thread, this external screw thread and described reducing are taken over the internal thread that (1) be provided with male end and are matched, the axial direction that described correcting bar (2) is provided with the end of thread is provided with circular hole II (21), and described correcting bar (2) outer wall is provided with circular hole III (22) and connects with described circular hole II (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420054207.2U CN203822161U (en) | 2014-01-28 | 2014-01-28 | Connecting device of drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420054207.2U CN203822161U (en) | 2014-01-28 | 2014-01-28 | Connecting device of drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203822161U true CN203822161U (en) | 2014-09-10 |
Family
ID=51477674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420054207.2U Expired - Fee Related CN203822161U (en) | 2014-01-28 | 2014-01-28 | Connecting device of drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203822161U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832103A (en) * | 2015-05-19 | 2015-08-12 | 中国水利水电第十工程局有限公司 | Progressive drilling-in type multi-drill-bit cutting and drilling device |
-
2014
- 2014-01-28 CN CN201420054207.2U patent/CN203822161U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832103A (en) * | 2015-05-19 | 2015-08-12 | 中国水利水电第十工程局有限公司 | Progressive drilling-in type multi-drill-bit cutting and drilling device |
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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 |
Granted publication date: 20140910 Termination date: 20200128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |