CN2373552Y - Drilling bore bit - Google Patents
Drilling bore bit Download PDFInfo
- Publication number
- CN2373552Y CN2373552Y CN 98247375 CN98247375U CN2373552Y CN 2373552 Y CN2373552 Y CN 2373552Y CN 98247375 CN98247375 CN 98247375 CN 98247375 U CN98247375 U CN 98247375U CN 2373552 Y CN2373552 Y CN 2373552Y
- Authority
- CN
- China
- Prior art keywords
- bit body
- bizet
- compensation block
- drill bit
- utility
- 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 - Lifetime
Links
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Abstract
The utility model relates to a drill bit used in drilling work, such as oil extraction, mining, well construction, etc. The utility model comprises a drill bit body, a plurality of alloy teeth, a crown part and a plurality of compensation blocks. The crown part is connected with the drill bit body in a dismountable way and is provided with a plurality of mounting holes. Every mounting hole is provided with a compensation block and an alloy tooth. Each alloy tooth extends out of the crown part, each compensation block resists the alloy teeth and the drill bit body resists each compensation block. The utility model has the advantage that only the adjustment of the length of the compensation blocks is required to make the worn alloy teeth compensated and extended out of the crown part again to obtain effects of repeated use, therefore, lowering the cost of well drilling or boring.
Description
The utility model relates in the improvement of recovering the oil, open a mine, employed drill bit in the operation is crept in well-digging etc.
Creep into recover the oil, open a mine, well-digging etc. at present that employed drill bit is that carbide button directly is fixed in bit body in the operation, after carbide button is worn down to a certain degree, connects bit body and scrap together, can not reuse, cause very big waste.
The purpose of this utility model is that above-mentioned drill bit is improved, so that a kind of reusable drill bit to be provided.
The technical solution of the utility model is: a kind of Drilling bore bit, comprise a bit body and several carbide buttons, it is characterized in that also comprising a bizet and several compensation blocks, this bizet is connected with removably with bit body, bizet is provided with several installing holes, a built-in compensation block of each installing hole and a carbide button, and each carbide button is stretched in outside the bizet, each compensation block props up carbide button, and bit body props up each compensation block.
Be further described below in conjunction with embodiment of the present utility model and accompanying drawing thereof.
Accompanying drawing is the structural representation of embodiment of the present utility model.
Drilling bore bit shown in the drawings comprises bit body 1 and several carbide buttons 5, and its particular structure is: also comprise and bit body 1 a separable bizet 2 and several compensation blocks 4.This bizet 2 and bit body 1 are connected with removably, that is, bizet 2 can be by being threaded with bit body 1; Also can connect by pin 6; Perhaps in order to improve bond strength, as shown in drawings, existingly be threaded and have pin 6 to connect.Bizet 2 is provided with several installing holes 3, each installing hole 3 a built-in compensation block 4 and carbide button 5, and each carbide button 5 is stretched in outside the bizet 2, and each compensation block 4 props up carbide button 5, and bit body 1 props up each compensation block 4.Compensation block 4, carbide button 5 are to be made by the material of different coefficient of thermal expansions with bizet 2, generally adopt the method for hot jacket or cold cover to insert in the installing hole 3, and by banding.
The bit body 1 of above-mentioned Drilling bore bit and drilling rod join and just can creep into operation, after carbide button 5 in use weares and teares, pull down bit body 1, decompose, and change the compensation block 4 of lengthening, ressemble again, make carbide button 5 stretch out bizet 2 again and can continue to use.
The utility model has the advantage of: only need by adjusting the length of compensation block, make closing of being worn The gold tooth is compensated and again stretches out bizet, obtains reusable effect, reduces therefrom drilling well or brill The operating cost in hole.
Claims (3)
1. Drilling bore bit, comprise a bit body and several carbide buttons, it is characterized in that also comprising a bizet and several compensation blocks, this bizet is connected with removably with bit body, bizet is provided with several installing holes, a built-in compensation block of each installing hole and a carbide button, and each carbide button is stretched in outside the bizet, each compensation block props up carbide button, and bit body props up each compensation block.
2. Drilling bore bit according to claim 1 is characterized in that bizet and bit body are by being threaded.
3. Drilling bore bit according to claim 1 is characterized in that bizet is connected by pin with bit body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98247375 CN2373552Y (en) | 1998-12-23 | 1998-12-23 | Drilling bore bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98247375 CN2373552Y (en) | 1998-12-23 | 1998-12-23 | Drilling bore bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2373552Y true CN2373552Y (en) | 2000-04-12 |
Family
ID=33992626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98247375 Expired - Lifetime CN2373552Y (en) | 1998-12-23 | 1998-12-23 | Drilling bore bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2373552Y (en) |
-
1998
- 1998-12-23 CN CN 98247375 patent/CN2373552Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: MSP/DRILEX (SHANGHAI) CO.,LTD Free format text: FORMER OWNER: AMERICAN DRILLING AND PRODUCTION SYSTEM (SHANGHAI) CO., LTD. Effective date: 20080201 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080201 Address after: Room 800407, Quyang Road, Shanghai, Hongkou District, China: 200437 Patentee after: MSP/DRILEX (Shanghai) Inc. Address before: Room 800, No. 401, Quyang Road, Shanghai, 200437 Patentee before: America Drilling System (Shanghai) Co., Ltd. |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai Meizuan Equipment Chengtao Co., Ltd Assignor: MSP/DRILEX (Shanghai) Inc. Contract fulfillment period: 2007.12.29 to 2008.12.23 Contract record no.: 2008310000165 Denomination of utility model: Drilling bit Granted publication date: 20000303 License type: Exclusive license Record date: 20081008 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.12.29 TO 2008.12.23; CHANGE OF CONTRACT Name of requester: SHANGHAI MEIZUAN EQUIPMENT CHENGTAO CO., LTD. Effective date: 20081008 |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |