CN204827218U - Cavity screw rod drilling tool - Google Patents
Cavity screw rod drilling tool Download PDFInfo
- Publication number
- CN204827218U CN204827218U CN201520570454.2U CN201520570454U CN204827218U CN 204827218 U CN204827218 U CN 204827218U CN 201520570454 U CN201520570454 U CN 201520570454U CN 204827218 U CN204827218 U CN 204827218U
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- Prior art keywords
- nozzle
- nut
- drilling tool
- lost nut
- hollow
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Abstract
The utility model discloses a cavity screw rod drilling tool, including bypass valve assembly, cavity motor assembly, cardan shaft assembly, transmission shaft assembly, cavity motor assembly includes stator and cavity rotor, its characterized in that: be connected with in the upper end of cavity rotor and prevent falling the pole the upper end of preventing falling the pole is connected with prevents falling the nut, disposes the nozzle preventing falling the nut inside seal, the nozzle is fixed on preventing falling the nut through the locking ring. The utility model discloses a nozzle through the locking ring setting on preventing falling the nut, increased its stability, prolonged life, the nozzle is fixed on preventing falling the nut, can be according to the not unidimensional nozzle of specific demand transform, the nozzle that only needs to be changed promptly, the screw rod alright in order normally to work under the discharge capacity of difference, enlarged the range of application of cavity screw rod to a certain extent.
Description
Technical field
The utility model relates to a kind of hollow screw drilling tool.
Background technology
In helicoid hydraulic motor big hole horizontal well construction, cutting carring; When deep-well, ultradeep well operation, need drilling fluid displacement be increased, fully circulate, reduce down-hole high temperature, alleviate the damage of High-geotemperature gradient to stator rubber.
Solid rotor helicoid hydraulic motor discharge capacity is increased considerably, causes helicoid hydraulic motor non-normal working, premature deterioration.The rated value that the motor of often kind of specification has it to recommend and recommend maximum, minimum stream value, helicoid hydraulic motor rotating speed is directly proportional to discharge capacity, under the condition of work of huge discharge, rotor speed must be improved, the centrifugal intertia force that rotor revolves round the sun around axis stator increases, rotor presses to stator lining laterally, change the desirable engagement of rotor and stator conjugation pair, cause wearing and tearing, aggravate rotor cycle oscillation crosswise simultaneously, reduce the helicoid hydraulic motor life-span, conventional tubeless rotor screw drill can not solve the problem, and hollow rotor screw stem drilling tool arises at the historic moment.
The project organization that current hollow screw drilling tool is common, screw rod solid rotor is changed into the middle helicoid hydraulic motor with hollow, general by jump ring fixed nozzle, shortcoming: by the hollow rotor of jump ring fixed nozzle does not arrange anti-drop structure, with the jump ring of fixed nozzle easily by erosion, premature failure.
Utility model content
Technical problem to be solved in the utility model is that the deficiency existed for above-mentioned prior art provides a kind of structure reliable, the hollow screw drilling tool that can increase the service life.
The technical scheme that the utility model adopts is: a kind of hollow screw drilling tool, comprise by-pass valve assembly, hollow motor assembly, universal drive shaft assembly, driving-shaft assembly, described hollow motor assembly comprises stator and hollow rotor, against falling bar is connected with in the upper end of hollow rotor, it is characterized in that: be connected with anti-lost nut in the upper end of described against falling bar, in anti-lost nut, seal arrangement has nozzle, and described nozzle is fixed on anti-lost nut by retaining ring.
By technique scheme, in the upper end of anti-lost nut, be provided with stepped hole, in the lower end of retaining ring, be provided with shoulder block, described nozzle is locked by the end surface of step hole of anti-lost nut and the shoulder block of retaining ring.
By technique scheme, the outlet of described nozzle is stretched in the stepped hole of anti-lost nut, the outer wall of nozzle is provided with flange and matches with the end surface of step hole of anti-lost nut.
By technique scheme, in retaining ring, being provided with the first seal groove and the second seal groove, making retaining ring respectively at anti-lost nut and sealed nozzle configuration by assembling sealing ring in two seal grooves.
By technique scheme, the lower end of anti-lost nut being provided with seal groove, making anti-lost nut and against falling bar seal arrangement by installing sealing ring in sealing groove.
By technique scheme, described nozzle is made up of Hardmetal materials.
By technique scheme, described nozzle inner walls is the smooth surface of big at both ends and small in middle.
When high-pressure slurry enters driller motor, screw rod starts to rotate, mud pressure can be converted into the mechanical energy of bolt rotary, part mud flows out motor from the space of screw stator, when meeting moment of torsion and the screw rod rotary speed of drilling well, another part mud can enter the rotor hole of hollow from nozzle and directly flow out motor, with entering shaft bottom together, what participate in drill bit creeps into work.
Beneficial effect acquired by the utility model is: nozzle of the present utility model is arranged on anti-lost nut by retaining ring, adds its stability, extends application life; Nozzle is fixed on anti-lost nut, can according to the nozzle of concrete demand conversion different size, and namely only need to change nozzle, screw rod just normally can work under different discharge capacities, expands the range of application of hollow screw to a certain extent; Described nozzle is made up of Hardmetal materials, and have the advantage of fluid erosion prevention, application life is longer, and the series of jets nozzle profile size uniformity of different-diameter causes, and uses simple, is convenient to produce.
Accompanying drawing explanation
Fig. 1 is structure chart of the present utility model.
Fig. 2 is against falling bar part-structure enlarged drawing.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1-2, present embodiments provide a kind of hollow screw drilling tool, comprise by-pass valve assembly, hollow motor assembly, universal drive shaft assembly, driving-shaft assembly, described hollow motor assembly comprises stator 1, hollow rotor 2, against falling bar 3, anti-lost joint 7, anti-dish 4 of losing rank, anti-lost nut 5, against falling bar 3 is arranged on the upper end of hollow rotor 2, anti-lost nut 5 is installed in the upper end of against falling bar 3, at anti-lost spiral shell, the lower end of 5 is provided with seal groove, anti-lost nut and against falling bar seal arrangement is made by installing O RunddichtringO 11 in sealing groove, in anti-lost nut 5, seal arrangement has nozzle 6, described nozzle 6 is fixed on anti-lost nut 5 by retaining ring 8.
In the present embodiment, stepped hole is provided with in the upper end of anti-lost nut 5, shoulder block is provided with in the lower end of retaining ring 8, the outlet of described nozzle 6 is stretched in the stepped hole of anti-lost nut 5, the outer wall of nozzle 6 is provided with flange match with the end surface of step hole of anti-lost nut, described nozzle 6 is located by the end surface of step hole of anti-lost nut and the shoulder block of retaining ring, then to be threaded with anti-lost nut 5 by retaining ring 8 and to lock.
Wherein, in retaining ring 8, being provided with the first seal groove and the second seal groove, making retaining ring 8 respectively at anti-lost nut 5 and nozzle 6 seal arrangement by assembling O RunddichtringO 9,10 in two seal grooves.
Wherein, described nozzle 6 is made up of Hardmetal materials, and its inwall is the smooth surface of big at both ends and small in middle, and nozzle has the advantage of fluid erosion prevention, and application life is longer, and the series of jets nozzle profile size uniformity of different-diameter causes, and uses simple, is convenient to produce.
The utility model locks nozzle by retaining ring, add its stability, extend application life, can according to the nozzle of concrete demand conversion different size, only need to change nozzle, screw rod just normally can work under different discharge capacities, expands the range of application of hollow screw to a certain extent.
Claims (7)
1. a hollow screw drilling tool, comprise by-pass valve assembly, hollow motor assembly, universal drive shaft assembly, driving-shaft assembly, described hollow motor assembly comprises stator and hollow rotor, it is characterized in that: be connected with against falling bar in the upper end of hollow rotor, anti-lost nut is connected with in the upper end of described against falling bar, in anti-lost nut, seal arrangement has nozzle, and described nozzle is fixed on anti-lost nut by retaining ring.
2. hollow screw drilling tool according to claim 1, is characterized in that, in the upper end of anti-lost nut, be provided with stepped hole, in the lower end of retaining ring, be provided with shoulder block, and described nozzle is locked by the end surface of step hole of anti-lost nut and the shoulder block of retaining ring.
3. hollow screw drilling tool according to claim 2, is characterized in that, the outlet of described nozzle is stretched in the stepped hole of anti-lost nut, the outer wall of nozzle is provided with flange and matches with the end surface of step hole of anti-lost nut.
4. the hollow screw drilling tool according to Claims 2 or 3, is characterized in that, is provided with the first seal groove and the second seal groove in retaining ring, makes retaining ring respectively at anti-lost nut and sealed nozzle configuration by assembling sealing ring in two seal grooves.
5. hollow screw drilling tool according to claim 1 and 2, is characterized in that, the lower end of anti-lost nut is provided with seal groove, makes anti-lost nut and against falling bar seal arrangement by installing sealing ring in sealing groove.
6. hollow screw drilling tool according to claim 1 and 2, is characterized in that, described nozzle is made up of Hardmetal materials.
7. hollow screw drilling tool according to claim 1 and 2, is characterized in that, described nozzle inner walls is the smooth surface of big at both ends and small in middle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520570454.2U CN204827218U (en) | 2015-07-31 | 2015-07-31 | Cavity screw rod drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520570454.2U CN204827218U (en) | 2015-07-31 | 2015-07-31 | Cavity screw rod drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204827218U true CN204827218U (en) | 2015-12-02 |
Family
ID=54684829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520570454.2U Active CN204827218U (en) | 2015-07-31 | 2015-07-31 | Cavity screw rod drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204827218U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762357A (en) * | 2016-12-10 | 2017-05-31 | 北京春仑石油技术开发有限公司 | A kind of hollow motor of turbodrill with nozzle |
| CN107178309A (en) * | 2017-07-25 | 2017-09-19 | 盐城市荣嘉机械制造有限公司 | A kind of multi-stage diffluence foam screw drill |
| CN113958280A (en) * | 2021-10-28 | 2022-01-21 | 西南石油大学 | Horizontal well rotation type detritus fishing tool with replaceable spray nozzle |
-
2015
- 2015-07-31 CN CN201520570454.2U patent/CN204827218U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762357A (en) * | 2016-12-10 | 2017-05-31 | 北京春仑石油技术开发有限公司 | A kind of hollow motor of turbodrill with nozzle |
| CN107178309A (en) * | 2017-07-25 | 2017-09-19 | 盐城市荣嘉机械制造有限公司 | A kind of multi-stage diffluence foam screw drill |
| CN113958280A (en) * | 2021-10-28 | 2022-01-21 | 西南石油大学 | Horizontal well rotation type detritus fishing tool with replaceable spray nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Patentee after: SINOPEC OILFIELD EQUIPMENT CORPORATION Address before: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Patentee before: Jianghan Petroleum Drilling Bit Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180321 Address after: 430223, No. 5, Chinese workers' garden, Temple Hill community, East Lake New Technology Development Zone, Wuhan, Hubei Co-patentee after: SINOPEC OILFIELD EQUIPMENT CORPORATION Patentee after: Kingdream Sinopec Petroleum Machinery Co. Ltd. Address before: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Patentee before: SINOPEC OILFIELD EQUIPMENT CORPORATION |