CN207092960U - Re-drill bit for oil drilling - Google Patents
Re-drill bit for oil drilling Download PDFInfo
- Publication number
- CN207092960U CN207092960U CN201721044079.3U CN201721044079U CN207092960U CN 207092960 U CN207092960 U CN 207092960U CN 201721044079 U CN201721044079 U CN 201721044079U CN 207092960 U CN207092960 U CN 207092960U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- bit body
- wing
- thread bush
- voussoir
- 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
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- Earth Drilling (AREA)
Abstract
The utility model belongs to drilling equipment field, a kind of more particularly to re-drill bit for oil drilling, including top connection, re-drill bit body and main bit body, three from top to bottom passes sequentially through threaded connection, the both sides of described re-drill bit body are symmetrically arranged with two elongated slots, reamer wing is installed in elongated slot, the lower end of reamer wing is hinged on the lower end of elongated slot, voussoir is provided between reamer wing and the bottom land of elongated slot, thread bush is provided with the upside of voussoir, thread bush is threadedly attached in the outside of re-drill bit body, the lower end of thread bush is against the top of voussoir, described re-drill bit body and the center of main bit body are provided with reservoir channel, reservoir channel is divided at least two injection branch roads in main bit body, the port of export of injection branch road is provided with removable nozzle.Reamer wing is hinged on re-drill bit body by the utility model, can drive wedge block movement by turning thread bush, and then realize that the regulation to reamer wing angle is asked.
Description
Technical field
The utility model belongs to drilling equipment technical field, more particularly to a kind of reamer for oil drilling
Head.
Background technology
Re-drill bit is a kind of drill bit for being widely used in oil drilling, and compared with conventional bit, re-drill bit can
Realize and expand when boring, so as to reduce drilling technology difficulty, improve operating efficiency.In the prior art, the reaming hole knife on re-drill bit
The position of the wing is nonadjustable mostly, i.e. the reaming hole diameter of re-drill bit can not be adjusted flexibly, and this structure seriously governs brill
Head is to the different adaptability for expanding empty demand.
The content of the invention
The utility model provides a kind of re-drill bit for oil drilling, to solve to propose in above-mentioned background technology
The problem of.The technical problem that the utility model solves is realized using following technical scheme：The utility model provides a kind of use
From top to bottom passed sequentially through in the re-drill bit of oil drilling, including top connection, re-drill bit body and main bit body, three
Threaded connection, the both sides of described re-drill bit body are symmetrically arranged with two elongated slots, reamer wing, reaming hole knife are provided with elongated slot
The lower end of the wing is hinged on the lower end of elongated slot, and voussoir is provided between reamer wing and the bottom land of elongated slot, is provided with the upside of voussoir
Thread bush, thread bush are threadedly attached in the outside of re-drill bit body, and the lower end of thread bush is against the top of voussoir, described
The center of re-drill bit body and main bit body is provided with reservoir channel, and reservoir channel is divided at least two sprays in main bit body
Branch road is penetrated, the port of export for spraying branch road is provided with removable nozzle.
Described thread bush side is symmetrically arranged with two pins, and side and the pin of re-drill bit body are correspondingly arranged on pin
Hole, at least two pairs of pin-and-hole.The two sides of described reamer wing cooperate with two medial surfaces of described elongated slot respectively.
The hinged place of described reamer wing and re-drill bit body is provided with the back-moving spring that reamer wing can be made to be drawn close to bit central.
The beneficial effects of the utility model are：
1st, reamer wing is hinged on re-drill bit body by the utility model, voussoir can be driven to transport by turning thread bush
It is dynamic, and then the regulation to reamer wing angle is realized, so as to adapt under various working to the use demand of re-drill bit.
2nd, using supporting construction of the voussoir as reamer wing, it is big to be made intensity, more reliable.
3rd, two medial surfaces of the two sides of described reamer wing respectively with described elongated slot cooperate, this structure
The swing of reamer wing can be effectively avoided, so as to be further ensured that the positional stability of reamer wing.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：The main bit bodys of 1-, 2- re-drill bit bodies, 3- reamer wings, 4- voussoirs, 5- thread bush, 6- pins, connect on 7-
Head, 8- reservoir channels, 9- injection branch roads, 10- removable nozzles.
Embodiment
The utility model is described further below in conjunction with accompanying drawing：
The present embodiment includes top connection 7, re-drill bit body 2 and main bit body 1, and three from top to bottom passes sequentially through screw thread company
Connect, the both sides of described re-drill bit body 2 are symmetrically arranged with two elongated slots, and reamer wing 3, reamer wing 3 are provided with elongated slot
Lower end be hinged on the lower end of elongated slot, voussoir 4 is provided between reamer wing 3 and the bottom land of elongated slot, the upside of voussoir 4 is provided with
Thread bush 5, thread bush 5 are threadedly attached in the outside of re-drill bit body 2, and the lower end of thread bush 5 is against the top of voussoir 4.
Reamer wing 3 is hinged on re-drill bit body 2 by the utility model, by turning thread bush 5 voussoir 4 can be driven to move, and then
The regulation to the angle of reamer wing 3 is realized, so as to adapt under various working to the use demand of re-drill bit.Made using voussoir 4
For the supporting construction of reamer wing 3, it is big to be made intensity, more reliable.
Described re-drill bit body 2 and the center of main bit body 1 are provided with reservoir channel 8, and reservoir channel 8 is in main drill bit
It is divided at least two injection branch roads 9 in body 1, the port of export of injection branch road 9 is provided with removable nozzle 10.
Described thread bush side is symmetrically arranged with two pins 6, and side and the pin 6 of re-drill bit body 2 are correspondingly arranged
There are pin-and-hole, at least two pairs of pin-and-hole, a position correspondence of each pair pin-and-hole and voussoir 4.
Described reamer wing 3 and the hinged place of re-drill bit body 2, which are provided with, can be such that reamer wing 3 is drawn close to bit central
Back-moving spring, after voussoir 4 is removed reamer wing 3 can be made to automatically reset.
The two sides of described reamer wing 3 cooperate with two medial surfaces of described elongated slot respectively, this structure
The swing of reamer wing 3 can be effectively avoided, so as to be further ensured that the positional stability of reamer wing 3.
Claims (4)
1. a kind of re-drill bit for oil drilling, including top connection (7), re-drill bit body (2) and main bit body
(1), three from top to bottom passes sequentially through threaded connection, it is characterised in that：The both sides of described re-drill bit body (2) are symmetrical arranged
There are two elongated slots, reamer wing (3) is installed in elongated slot, the lower end of reamer wing (3) is hinged on the lower end of elongated slot, reamer wing
(3) voussoir (4) is provided between the bottom land of elongated slot, thread bush (5) is provided with the upside of voussoir (4), thread bush (5) passes through spiral shell
Line is connected to the outside of re-drill bit body (2), and the lower end of thread bush (5) is against the top of voussoir (4), described re-drill bit body
(2) and the center of main bit body (1) is provided with reservoir channel (8), and reservoir channel (8) is divided at least in main bit body (1)
Two injection branch roads (9), the port of export of injection branch road (9) are provided with removable nozzle (10).
A kind of 2. re-drill bit for oil drilling according to claim 1, it is characterised in that：Described screw thread
Set (5) side is symmetrically arranged with two pins (6), and side and the pin (6) of re-drill bit body (2) are correspondingly arranged on pin-and-hole, sold
At least two pairs of hole.
A kind of 3. re-drill bit for oil drilling according to claim 1, it is characterised in that：Described reaming hole
The two sides of wing (3) cooperate with two medial surfaces of described elongated slot respectively.
A kind of 4. re-drill bit for oil drilling according to claim 1, it is characterised in that：Described reaming hole
The hinged place of wing (3) and re-drill bit body (2) is provided with the back-moving spring that reamer wing (3) can be made to be drawn close to bit central.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721044079.3U CN207092960U (en) | 2017-08-18 | 2017-08-18 | Re-drill bit for oil drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721044079.3U CN207092960U (en) | 2017-08-18 | 2017-08-18 | Re-drill bit for oil drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207092960U true CN207092960U (en) | 2018-03-13 |
Family
ID=61541056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721044079.3U Expired - Fee Related CN207092960U (en) | 2017-08-18 | 2017-08-18 | Re-drill bit for oil drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207092960U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236846A (en) * | 2020-01-21 | 2020-06-05 | 中铁第四勘察设计院集团有限公司 | Bottom expanding drill bit |
| CN112252983A (en) * | 2020-11-04 | 2021-01-22 | 中国矿业大学(北京) | Hydraulic hole expanding drill bit |
| CN115478785A (en) * | 2022-09-09 | 2022-12-16 | 乐山师范学院 | Drilling device with automatic adjusting function and drilling method |
-
2017
- 2017-08-18 CN CN201721044079.3U patent/CN207092960U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236846A (en) * | 2020-01-21 | 2020-06-05 | 中铁第四勘察设计院集团有限公司 | Bottom expanding drill bit |
| CN112252983A (en) * | 2020-11-04 | 2021-01-22 | 中国矿业大学(北京) | Hydraulic hole expanding drill bit |
| CN115478785A (en) * | 2022-09-09 | 2022-12-16 | 乐山师范学院 | Drilling device with automatic adjusting function and drilling method |
| CN115478785B (en) * | 2022-09-09 | 2023-04-11 | 乐山师范学院 | Drilling device with automatic adjusting function and drilling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180313 Termination date: 20210818 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |