CN202348138U - Anti-fall joint structure of screw drill tool - Google Patents
Anti-fall joint structure of screw drill tool Download PDFInfo
- Publication number
- CN202348138U CN202348138U CN2011204710374U CN201120471037U CN202348138U CN 202348138 U CN202348138 U CN 202348138U CN 2011204710374 U CN2011204710374 U CN 2011204710374U CN 201120471037 U CN201120471037 U CN 201120471037U CN 202348138 U CN202348138 U CN 202348138U
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- Prior art keywords
- lost
- fall
- rotor
- nut
- connecting rod
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- Expired - Fee Related
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Abstract
The utility model discloses an anti-fall joint structure of a screw drill tool. The anti-fall joint structure comprises an anti-fall shell, a stator, a rotor, anti-fall nuts and a bypass valve connecting block, wherein the stator is connected with the rotor; the anti-fall shell is fixedly connected into the bypass valve connecting block; the end part of the anti-fall shell is provided with steps; the size of step holes are smaller than the outer diameter of the anti-fall nuts; the anti-fall shell is internally provided with an anti-fall connecting rod which is used for connecting the rotor with the anti-fall nuts; a lug boss with the outer diameter less than the size of the step holes is arranged at one end of the anti-fall connecting rod which is connected with the anti-fall nuts while an anti-fall clamping ring with the outer diameter greater than the size of the step holes is arranged at the other side of the lug boss. The anti-fall joint structure of the screw drill tool, disclosed by the utility model, has the advantages of simple structure, convenience in use, and capabilities of realizing double-protection function, preventing from falling in a well, efficiently improving anti-fall effect and thereby guaranteeing normal operation of the construction.
Description
Technical field
The utility model relates to a kind of oil drilling apparatus structure, relates in particular to the anti-lost joint design of a kind of helicoid hydraulic motor.
Background technology
At present, along with the development of drilling technology and improving constantly of drilling technology level, in the drillng operation of directional well, the formula of inclining well and the horizontal well in oil field, helicoid hydraulic motor has become the most widely used power drilling tool in down-hole in the drillng operation.Helicoid hydraulic motor connects drill bit in the power transmission shaft lower end; Thereby vibration is stronger; Different operating mode lower stress situation with vary in size, when raising suddenly, cause housing or power transmission shaft to rupture easily like or pump pressure excessive when helicoid hydraulic motor generation torsion; Power transmission shaft even whole housing are fallen into the shaft bottom like this, influence normally carrying out of wellbore construction operation.In order to address this problem, existing helicoid hydraulic motor connects anti-lost nut and rotor through anti-lost connecting rod, and since between anti-lost nut and the anti-lost connecting rod with being threaded; When having an accident, anti-lost nut drops on the step of anti-lost housing, because the rotation of rotor; Anti-lost nut is also constantly rotated, produce friction between anti-lost like this nut and the step, this frictional force makes thread looseness easily; Make anti-lost structural failure, thereby the anti-lost effect of existing anti-lost structure is unreliable.
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 prevent that connecting portion is loosening, thereby the preventing from falling into well accident takes place in advance, the anti-lost joint design of the reliable helicoid hydraulic motor of anti-lost effect stability.
For solving the problems of the technologies described above; The technical scheme of the utility model is: the anti-lost joint design of helicoid hydraulic motor, comprise anti-lost housing, stator, rotor, anti-lost nut and bypass valve contiguous block, and said stator is connected with rotor; Said anti-lost housing is fixedly connected in the said bypass valve contiguous block; The end of said anti-lost housing is provided with step, and said stepped hole is provided with the anti-lost connecting rod that is used to connect rotor and anti-lost nut less than the external diameter of anti-lost nut in the said anti-lost housing; The end that said anti-lost connecting rod connects anti-lost nut is provided with the boss of external diameter less than said stepped hole, and said boss opposite side is provided with the anti-lost snap ring of external diameter greater than stepped hole.
Said anti-lost nut is threaded with said anti-lost connecting rod.
After having adopted technique scheme, the beneficial effect that the utility model is obtained is: the utility model is simple in structure, and is easy to use, can realize the double protection effect, prevents the generation of well phenomenon, effectively improves anti-lost effect, thereby guarantees normally carrying out of construction.
Description of drawings
Accompanying drawing is the structural representation of the utility model embodiment.
The specific embodiment
Shown in accompanying drawing; The anti-lost joint design of helicoid hydraulic motor comprises anti-lost housing 1, stator 2, rotor 3, anti-lost nut 4 and bypass valve contiguous block 5, and said stator 2 is connected with rotor 3; Said anti-lost housing 1 is fixedly connected in the said bypass valve contiguous block 5; The end of said anti-lost housing 1 is provided with step 6, and the stepped hole that step 6 forms is provided with the anti-lost connecting rod 7 that is used to connect rotor 3 and anti-lost nut 4 less than the external diameter of anti-lost nut 4 in the said anti-lost housing 1; The end that said anti-lost connecting rod 7 connects anti-lost nut 4 is provided with the boss 8 of external diameter less than said stepped hole, and said boss 8 opposite sides are provided with the anti-lost snap ring 9 of external diameter greater than stepped hole.
Said anti-lost nut 4 is threaded with said anti-lost connecting rod 7.
Owing on anti-lost connecting rod, be provided with boss 8; And anti-lost nut 4 and anti-lost snap ring 9 be set respectively in the both sides of boss 8; Anti-lost snap ring 9 can be stuck in through boss 8 on the step 6 of anti-lost housing 1 so on the one hand, can prevent that so anti-lost connecting rod 7 from driving rotor 3 and coming off with stator 2; In rotor 3 rotation processes, anti-lost snap ring 9 is rotated with rotor 3, but, so also can further improve anti-lost effect on the other hand because the effect of boss 8 can not come off.In addition, even anti-lost snap ring 9 is damaged fracture under long stressed effect, because the anti-lost nut 4 that is provided with on the anti-lost connecting rod 7 also can further play the purpose that prevents that rotor 3 and stator 2 from coming off, thereby play double protection.And because anti-lost nut 4 is arranged on the opposite side of boss 8, has reduced the rubbing surface of anti-lost nut 4 and step 6 like this, thereby reduced rotatory force, played better anti-lost effect.
The utility model is simple in structure, and is easy to use, can realize the double protection effect, prevents the generation of well phenomenon, effectively improves anti-lost effect, thereby guarantees normally carrying out of construction.
Claims (2)
1. the anti-lost joint design of helicoid hydraulic motor; Comprise anti-lost housing, stator, rotor, anti-lost nut and bypass valve contiguous block; It is characterized in that: said stator is connected with rotor, and said anti-lost housing is fixedly connected in the said bypass valve contiguous block, and the end of said anti-lost housing is provided with step; Said stepped hole is less than the external diameter of anti-lost nut; Be provided with the anti-lost connecting rod that is used to connect rotor and anti-lost nut in the said anti-lost housing, the end that said anti-lost connecting rod connects anti-lost nut is provided with the boss of external diameter less than said stepped hole, and said boss opposite side is provided with the anti-lost snap ring of external diameter greater than stepped hole.
2. the anti-lost joint design of helicoid hydraulic motor according to claim 1 is characterized in that: said anti-lost nut is threaded with said anti-lost connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204710374U CN202348138U (en) | 2011-11-16 | 2011-11-16 | Anti-fall joint structure of screw drill tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204710374U CN202348138U (en) | 2011-11-16 | 2011-11-16 | Anti-fall joint structure of screw drill tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348138U true CN202348138U (en) | 2012-07-25 |
Family
ID=46537147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204710374U Expired - Fee Related CN202348138U (en) | 2011-11-16 | 2011-11-16 | Anti-fall joint structure of screw drill tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348138U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031670A (en) * | 2020-08-21 | 2020-12-04 | 中煤科工集团西安研究院有限公司 | Mining drill rod with anti-drop drilling function |
| CN112227975A (en) * | 2020-09-29 | 2021-01-15 | 中煤科工集团西安研究院有限公司 | Double-connection drill rod imitating animal tendon-bone structure |
| CN113700441A (en) * | 2021-11-01 | 2021-11-26 | 中煤科工集团西安研究院有限公司 | Mining drill rod male joint with fracture self-locking function and drill rod |
-
2011
- 2011-11-16 CN CN2011204710374U patent/CN202348138U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031670A (en) * | 2020-08-21 | 2020-12-04 | 中煤科工集团西安研究院有限公司 | Mining drill rod with anti-drop drilling function |
| CN112031670B (en) * | 2020-08-21 | 2022-01-28 | 中煤科工集团西安研究院有限公司 | Mining drill rod with anti-drop drilling function |
| CN112227975A (en) * | 2020-09-29 | 2021-01-15 | 中煤科工集团西安研究院有限公司 | Double-connection drill rod imitating animal tendon-bone structure |
| CN112227975B (en) * | 2020-09-29 | 2022-03-15 | 中煤科工集团西安研究院有限公司 | Double-connection drill rod imitating animal tendon-bone structure |
| CN113700441A (en) * | 2021-11-01 | 2021-11-26 | 中煤科工集团西安研究院有限公司 | Mining drill rod male joint with fracture self-locking function and drill rod |
| CN113700441B (en) * | 2021-11-01 | 2021-12-31 | 中煤科工集团西安研究院有限公司 | Mining drill rod male joint with fracture self-locking function and drill rod |
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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 |