CN202348150U - Centralizer for screw drill - Google Patents
Centralizer for screw drill Download PDFInfo
- Publication number
- CN202348150U CN202348150U CN2011204710016U CN201120471001U CN202348150U CN 202348150 U CN202348150 U CN 202348150U CN 2011204710016 U CN2011204710016 U CN 2011204710016U CN 201120471001 U CN201120471001 U CN 201120471001U CN 202348150 U CN202348150 U CN 202348150U
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- CN
- China
- Prior art keywords
- rib
- inner ring
- ring body
- centralizer
- spiral
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- Expired - Fee Related
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Abstract
The utility model discloses a centralizer for a screw drill. The centralizer comprises an inner ring body movably connected with a screw drill shell; a stabilizer coaxial with the inner ring body is arranged on the outer side of the inner ring body; a plurality of spoke plates are arranged between the stabilizer and the inner ring body; a plurality of spiral stabilizing edges are arranged on the outer circumferential surface of the stabilizer; and a spiral diversion trench is formed between the two adjacent spiral stabilizing edges. The centralizer is simple in structure, reasonable in design and convenient to replace, can improve the centralizing effect, is easy to machine, low in cost, stable and abrasion-resistant, and the service life is prolonged.
Description
Technical field
The utility model relates to the oil drilling machine technical field, relates in particular to a kind of helicoid hydraulic motor and uses centralizer.
Background technology
At present; Helicoid hydraulic motor is one of necessary tool in geological prospecting, the oil drilling exploitation, and helicoid hydraulic motor can be converted into mechanical energy with hydraulic pressure after getting into helicoid hydraulic motor through high pressure drilling liquid by drilling rod; Thereby make rotor drive main shaft and drill bit rotation, reached the purpose of boring.Centralizer is an important ingredient in the helicoid hydraulic motor combination, is connected on the screw rod housing, in order to preventing hole scattering, and is beneficial to the drill bit smooth working.The whole setting of existing centralizer housing general and helicoid hydraulic motor, drill bit or reamer size and diameter of the housing differ bigger, make the centralizer difficulty of processing big like this; In addition, the centralizer surface is generally cylindrical-shaped structure, and wear-resistant surface is the periphery of centralizer; Increase cost like this, and after certain position wearing and tearing, can not play centralizing function effectively; And such centralizer can not change, and causes whole drilling tool failure after the wearing and tearing, causes great waste.
The utility model content
The utility model provides a kind of simple in structure, reasonable in design to the defective that prior art exists, and is convenient for changing, and can improve and set upright effect, is easy to processing, and cost is low, stablizes wear-resisting helicoid hydraulic motor and uses centralizer.
For solving the problems of the technologies described above; The technical scheme of the utility model is: helicoid hydraulic motor is used centralizer; Comprise the inner ring body that flexibly connects with the helicoid hydraulic motor housing, the outside of said inner ring body is provided with the stabilizer coaxial with said inner ring body, is provided with a plurality of disc between said stabilizer and the said inner ring body; The outer circumference surface of said stabilizer is provided with many spirals and stablizes rib, and adjacent two spirals are stablized and formed the spiral stream guidance groove between the rib.
Said spiral is stablized rib and is provided with wearing layer.
Said spiral is stablized rib and is comprised that a main spiral is stablized rib and a plurality of secondary spiral is stablized rib, and the rubbing surface that said main spiral is stablized rib is stablized the rubbing surface of rib greater than other secondary spiral.
The inner circumferential surface of said inner ring body is provided with connecting thread.
After having adopted technique scheme, the beneficial effect that the utility model is obtained is: the utility model is simple in structure, and is reasonable in design, is convenient for changing, and can improve and set upright effect, is easy to processing, and cost is low, stablizes wear-resistingly, has prolonged application life.
Description of drawings
Accompanying drawing is the structural representation of the utility model embodiment.
The specific embodiment
Shown in accompanying drawing; Helicoid hydraulic motor is used centralizer; Comprise the inner ring body 1 that flexibly connects with the helicoid hydraulic motor housing, the outside of said inner ring body 1 is provided with the stabilizer 2 coaxial with said inner ring body 1, is provided with a plurality of disc 3 between said stabilizer 2 and the said inner ring body 1; The outer circumference surface of said stabilizer 2 is provided with many spirals and stablizes rib, and adjacent two spirals are stablized and formed spiral stream guidance groove 4 between the rib.During use, the housing of helicoid hydraulic motor and centralizer are set to the branch body structure, and separately processing does not receive size restrictions, and is easy to process, and can only change centralizer according to the degree of wear and get final product, have reduced cost, through lock sleeve itself and housing are locked during use to get final product; Through disc 3 stabilizer 2 is fixed on the inner ring body 1, stablizes rib through a plurality of spirals that are provided with on the stabilizer 2 and not only can prevent the centralizer eccentric wear, improved stability, and reduced cost, prolonged application life.
Said spiral is stablized rib and is provided with wearing layer 5.Can improve wear-resisting effect through wearing layer 5, prolong the application life of centralizer.
Said spiral is stablized rib and is comprised that a main spiral stablizes rib 6 and stablize rib 7 with a plurality of secondary spirals, and the rubbing surface that said main spiral is stablized rib 6 is stablized the rubbing surface of rib 7 greater than other secondary spiral.Through main spiral is stablized rib 6 as the groundwork support, increased the area of wear-resistant surface, improved the abrasion resistance and the stability of centralizer, prolonged application life.
The inner circumferential surface of said inner ring body 1 is provided with connecting thread.Be easy for installation and removal through being threaded, it is convenient to change.
The utility model is simple in structure, and is reasonable in design, is convenient for changing, and can improve and set upright effect, is easy to processing, and cost is low, stablizes wear-resistingly, has prolonged application life.
Claims (4)
1. helicoid hydraulic motor is used centralizer; Comprise the inner ring body that flexibly connects with the helicoid hydraulic motor housing; It is characterized in that: the outside of said inner ring body is provided with the stabilizer coaxial with said inner ring body; Be provided with a plurality of disc between said stabilizer and the said inner ring body, the outer circumference surface of said stabilizer is provided with many spirals and stablizes rib, and adjacent two spirals are stablized and formed the spiral stream guidance groove between the rib.
2. helicoid hydraulic motor according to claim 1 is used centralizer, it is characterized in that: said spiral is stablized rib and is provided with wearing layer.
3. helicoid hydraulic motor according to claim 1 is used centralizer, it is characterized in that: said spiral is stablized rib and is comprised that a main spiral is stablized rib and a plurality of secondary spiral is stablized rib, and the rubbing surface that said main spiral is stablized rib is stablized the rubbing surface of rib greater than other secondary spiral.
4. helicoid hydraulic motor according to claim 1 is used centralizer, it is characterized in that: the inner circumferential surface of said inner ring body is provided with connecting thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204710016U CN202348150U (en) | 2011-11-16 | 2011-11-16 | Centralizer for screw drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204710016U CN202348150U (en) | 2011-11-16 | 2011-11-16 | Centralizer for screw drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348150U true CN202348150U (en) | 2012-07-25 |
Family
ID=46537159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204710016U Expired - Fee Related CN202348150U (en) | 2011-11-16 | 2011-11-16 | Centralizer for screw drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348150U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696707A (en) * | 2014-01-11 | 2014-04-02 | 吉林大学 | Stacked-disk stabilizer |
| CN104612599A (en) * | 2015-01-27 | 2015-05-13 | 大庆宏富来电气设备制造有限公司 | Eccentric wear prevention wear-resisting centering device for pumping rod |
| CN108222856A (en) * | 2016-12-12 | 2018-06-29 | 四川煜天石油机械设备有限公司 | Wear-resisting rotary centralizer |
| CN108661573A (en) * | 2018-06-01 | 2018-10-16 | 北京六合伟业科技股份有限公司 | A kind of wireless drift indicator uses foldable centralizer |
| CN110029948A (en) * | 2019-06-03 | 2019-07-19 | 中铁隧道集团一处有限公司 | Drill bit erection device for long range horizontal drilling of constructing |
-
2011
- 2011-11-16 CN CN2011204710016U patent/CN202348150U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696707A (en) * | 2014-01-11 | 2014-04-02 | 吉林大学 | Stacked-disk stabilizer |
| CN103696707B (en) * | 2014-01-11 | 2015-06-03 | 吉林大学 | Stacked-disk stabilizer |
| CN104612599A (en) * | 2015-01-27 | 2015-05-13 | 大庆宏富来电气设备制造有限公司 | Eccentric wear prevention wear-resisting centering device for pumping rod |
| CN108222856A (en) * | 2016-12-12 | 2018-06-29 | 四川煜天石油机械设备有限公司 | Wear-resisting rotary centralizer |
| CN108661573A (en) * | 2018-06-01 | 2018-10-16 | 北京六合伟业科技股份有限公司 | A kind of wireless drift indicator uses foldable centralizer |
| CN110029948A (en) * | 2019-06-03 | 2019-07-19 | 中铁隧道集团一处有限公司 | Drill bit erection device for long range horizontal drilling of constructing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20121116 |