CN203022654U - Sealing type universal shaft for screw drilling tool - Google Patents
Sealing type universal shaft for screw drilling tool Download PDFInfo
- Publication number
- CN203022654U CN203022654U CN 201220737484 CN201220737484U CN203022654U CN 203022654 U CN203022654 U CN 203022654U CN 201220737484 CN201220737484 CN 201220737484 CN 201220737484 U CN201220737484 U CN 201220737484U CN 203022654 U CN203022654 U CN 203022654U
- Authority
- CN
- China
- Prior art keywords
- intermediate bar
- universal shaft
- endoporus
- hydraulic motor
- flexural pivot
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 29
- 238000005553 drilling Methods 0.000 title abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005096 rolling process Methods 0.000 abstract 4
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 241000309551 Arthraxon hispidus Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 210000001226 toe joint Anatomy 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Images
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model relates to a sealing type universal shaft for a screw drilling tool. The sealing type universal shaft comprises a middle rod, wherein spherical joints are sleeved at the two ends of the middle rod. The sealing type universal shaft is characterized in that ball heads matched with ball seats of inner holes of the spherical joints are arranged at the front end of the end head of the middle rod; the periphery of the end head of the middle rod is matched with the inner holes of the spherical joints; rolling column holes are formed between the periphery of the end head of the middle rod and the inner holes of the spherical joints along the circumferential direction; drum-shaped rolling columns are placed in the rolling column holes; and a sealing device is also arranged between the inner holes of the spherical joints and the middle rod. The sealing type universal shaft has the beneficial effects that the ball seats are arranged in the spherical joints, and a certain quantity of drum-shaped rolling columns are arranged between the middle rod and the spherical joints and used for transmitting axial pressure and torque; the sealing type universal shaft is of a simple and compact structure, and is easy to machine and reliable in working performance; and because the sealing device is reasonably arranged, the sealing performance is improved, and the service life of the universal shaft is prolonged.
Description
Technical field
The present invention relates to a kind of sealed universal shaft that oil, gas drilling field and helicoid hydraulic motor configuration are used that is applicable to, especially be fit to do with air, foam the under balance pressure drilling field of circulatory mediator.
Background technology
In oil exploitation and well workover, the mud motor particularly application of helicoid hydraulic motor is more and more extensive.Helicoid hydraulic motor comprises by-pass valve assembly, motor assembly, universal drive shaft assembly and driving-shaft assembly, various piece connects respectively from top to bottom successively, wherein the upper end of universal drive shaft is connected with motor rotor, the lower end is connected with power transmission shaft, its effect is the planetary motion of motor rotor to be converted into the dead axle motion of power transmission shaft, and moment of torsion and rotating speed that motor is produced pass to drill bit stably.As seen, the universal drive shaft assembly is the very crucial parts of helicoid hydraulic motor, and its structural performance is directly connected to drilling efficiency and the application life of helicoid hydraulic motor.
The universal drive shaft of helicoid hydraulic motor mainly contains the spherical tooth type universal axle at present, and its structure comprises male joint, ectosphere tooth connecting axle, bulb lid, endosphere tooth jackshaft, locking ball and endosphere toe joint head.Male joint and ectosphere tooth connecting axle are fixed together, and swing around locking ball, ectosphere tooth connecting axle and endosphere tooth jackshaft pass through the engagement transmitting torque between tooth, thereby realize axial force and the transfer of torque of universal drive shaft, and can realize the swing of male joint and endosphere toe joint head.The deficiency of spherical tooth type universal axle is sealing surface and locking ball decentraction, at joint and ectosphere tooth connecting axle when locking ball swings, the gap length of sealing surface can change along with swing, affects sealing performance, so that cause corrosion and damage to locking ball and ball tooth; Next is ball tooth processing difficulties, is difficult to reach machining accuracy.
Summary of the invention
Technical problem to be solved in the utility model is the deficiency that exists for above-mentioned prior art, and the helicoid hydraulic motor sealed universal shaft of a kind of good seal performance, simple and compact for structure, long service life is provided.
The utility model is that the technical scheme that the problem of the above-mentioned proposition of solution adopts is: include intermediate bar, two socket flexural pivot of intermediate bar, it is characterized in that described intermediate bar termination front end arranges the ball seat phase configuration of bulb and flexural pivot endoporus, intermediate bar termination periphery and flexural pivot endoporus phase configuration and between are along circumferentially offering roller hole, be installed on the cydariform roller in roller hole, also be installed on sealing device between flexural pivot endoporus and intermediate bar.
Press such scheme, described roller hole is cylindrical hole, and the center of circle of cylindrical hole is positioned on the periphery circle of intermediate bar termination.
Press such scheme, described cylindrical hole is along circumferentially uniform 4 ~ 10.
Press such scheme, described intermediate bar termination outer circumference diameter is formed with the shaft shoulder greater than the intermediate bar diameter.
Press such scheme, described intermediate bar termination outer peripheral face is evagination circular arc cydariform.
Press such scheme, the fit clearance of described flexural pivot endoporus and intermediate bar termination periphery is 2～10 millimeters, and the relative pendulum angle of intermediate bar is 0～5 °.
Press such scheme, described flexural pivot front end is male connection, and endoporus is offered in the rear end, and endoporus bottom is installed on the bulb phase configuration of ball seat and intermediate bar termination front end, and bore orifice arranges internal thread and locks swivel nut and be connected.
Press such scheme, described sealing device comprises the sealing shroud that is sleeved between intermediate bar and flexural pivot endoporus, one end of sealing shroud is sealedly connected on jackshaft, joint ring in shaft shoulder place, the termination of jackshaft suit step, the periphery of joint ring and the other end of sealing shroud socket-connect, and tight by locking swivel nut dense block.
The beneficial effects of the utility model are: 1, ball seat is set in flexural pivot, the cydariform roller of some is set between intermediate bar and flexural pivot, in order to transmit axial compression and moment of torsion; It is simple and compact for structure, is easy to processing, reliable working performance; 2, sealing device arranges rationally, thereby has improved sealing performance, has extended the application life of universal drive shaft.
Description of drawings
Fig. 1 is the positive view of one embodiment of the invention.
Fig. 2 is the C-C sectional view in Fig. 1.
The specific embodiment
Further illustrate embodiment of the present utility model below in conjunction with accompanying drawing.
Include intermediate bar 15, two of intermediate bar socket flexural pivot 9, described intermediate bar termination front end arrange interior ball seat 10 phase configuration of bulb and flexural pivot, and described intermediate bar termination outer circumference diameter is formed with the shaft shoulder greater than the intermediate bar diameter; Described flexural pivot front end is male connection, and endoporus is offered in the rear end, and endoporus bottom is installed on the bulb phase configuration of ball seat and intermediate bar termination front end, and bore orifice arranges internal thread and locks swivel nut 12 and be connected; Intermediate bar termination periphery and flexural pivot endoporus phase configuration and between be along circumferentially offering roller hole, and the fit clearance of flexural pivot endoporus and intermediate bar termination periphery is 3 millimeters, and intermediate bar termination outer peripheral face is evagination circular arc cydariform; Described roller hole is cylindrical hole, the center of circle of cylindrical hole is positioned on the periphery circle of intermediate bar termination, to be cylindrical hole be harmonious by the half-arc groove that half-and-half is opened in flexural pivot endoporus and intermediate bar termination periphery consists of, and cylindrical hole is installed on cydariform roller 11 along circumferentially uniform 8 in cylindrical hole; Also be installed on sealing device between flexural pivot endoporus and intermediate bar, described sealing device comprises the rubber sealing boot 14 that is sleeved between intermediate bar and flexural pivot endoporus, one end of sealing shroud is sealedly connected on jackshaft, joint ring 13 in shaft shoulder place, the termination of jackshaft suit step, the periphery of joint ring and the other end of sealing shroud socket-connect, and tight by locking swivel nut dense block.
Claims (8)
1. helicoid hydraulic motor sealed universal shaft, include intermediate bar, two socket flexural pivot of intermediate bar, it is characterized in that described intermediate bar termination front end arranges the ball seat phase configuration of bulb and flexural pivot endoporus, intermediate bar termination periphery and flexural pivot endoporus phase configuration and between are along circumferentially offering roller hole, be installed on the cydariform roller in roller hole, also be installed on sealing device between flexural pivot endoporus and intermediate bar.
2. helicoid hydraulic motor sealed universal shaft according to claim 1, is characterized in that described roller hole is cylindrical hole, and the center of circle of cylindrical hole is positioned on the periphery circle of intermediate bar termination.
3. helicoid hydraulic motor sealed universal shaft according to claim 2, is characterized in that described cylindrical hole is along circumferentially uniform 4 ~ 10.
4. helicoid hydraulic motor sealed universal shaft according to claim 1 and 2 is characterized in that described intermediate bar termination outer circumference diameter greater than the intermediate bar diameter, is formed with the shaft shoulder.
5. helicoid hydraulic motor sealed universal shaft according to claim 4 is characterized in that described intermediate bar termination outer peripheral face is evagination circular arc cydariform.
6. helicoid hydraulic motor sealed universal shaft according to claim 4 is characterized in that the fit clearance of described flexural pivot endoporus and intermediate bar termination periphery is 2～10 millimeters, and the relative pendulum angle of intermediate bar is 0～5 °.
7. helicoid hydraulic motor sealed universal shaft according to claim 4, it is characterized in that described flexural pivot front end is male connection, endoporus is offered in the rear end, and endoporus bottom is installed on the bulb phase configuration of ball seat and intermediate bar termination front end, and bore orifice arranges internal thread and locks swivel nut and be connected.
8. helicoid hydraulic motor sealed universal shaft according to claim 7, it is characterized in that described sealing device comprises the sealing shroud that is sleeved between intermediate bar and flexural pivot endoporus, one end of sealing shroud is sealedly connected on jackshaft, joint ring in shaft shoulder place, the termination of jackshaft suit step, the periphery of joint ring and the other end of sealing shroud socket-connect, and tight by locking swivel nut dense block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737484 CN203022654U (en) | 2012-12-28 | 2012-12-28 | Sealing type universal shaft for screw drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737484 CN203022654U (en) | 2012-12-28 | 2012-12-28 | Sealing type universal shaft for screw drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203022654U true CN203022654U (en) | 2013-06-26 |
Family
ID=48646645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220737484 Expired - Fee Related CN203022654U (en) | 2012-12-28 | 2012-12-28 | Sealing type universal shaft for screw drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203022654U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989291A (en) * | 2015-07-23 | 2015-10-21 | 德州联合石油机械有限公司 | Spline cardan shaft type screw drill |
| CN105179501A (en) * | 2015-09-16 | 2015-12-23 | 东营凯维石油科技有限责任公司 | Universal coupling used for submersible direct-driven progressing cavity pump unit |
| CN108518188A (en) * | 2018-03-20 | 2018-09-11 | 西南石油大学 | A kind of high antitorque screw drill sealing-ball hinge universal shaft |
| CN110945205A (en) * | 2017-07-27 | 2020-03-31 | 涡轮钻具工业公司 | Articulated universal joint with reduced recoil |
| CN112983254A (en) * | 2021-03-30 | 2021-06-18 | 长江大学 | Screw drill for directional drilling and well repairing |
| CN116557437A (en) * | 2023-05-11 | 2023-08-08 | 中国石油化工股份有限公司 | A petal type cardan shaft sealing structure |
-
2012
- 2012-12-28 CN CN 201220737484 patent/CN203022654U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989291A (en) * | 2015-07-23 | 2015-10-21 | 德州联合石油机械有限公司 | Spline cardan shaft type screw drill |
| CN105179501A (en) * | 2015-09-16 | 2015-12-23 | 东营凯维石油科技有限责任公司 | Universal coupling used for submersible direct-driven progressing cavity pump unit |
| CN105179501B (en) * | 2015-09-16 | 2018-01-30 | 东营凯维石油科技有限责任公司 | Latent oil directly-driven screw pump unit Hooks coupling universal coupling |
| CN110945205A (en) * | 2017-07-27 | 2020-03-31 | 涡轮钻具工业公司 | Articulated universal joint with reduced recoil |
| CN108518188A (en) * | 2018-03-20 | 2018-09-11 | 西南石油大学 | A kind of high antitorque screw drill sealing-ball hinge universal shaft |
| CN112983254A (en) * | 2021-03-30 | 2021-06-18 | 长江大学 | Screw drill for directional drilling and well repairing |
| CN116557437A (en) * | 2023-05-11 | 2023-08-08 | 中国石油化工股份有限公司 | A petal type cardan shaft sealing structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203022654U (en) | Sealing type universal shaft for screw drilling tool | |
| CN104863523B (en) | Ratchet type universal shaft for downhole power drill tool | |
| CN108060896B (en) | Mechanical downhole tool for realizing vertical drilling by utilizing screw cam | |
| US20180051516A1 (en) | Hydraulic Gentle Vibration Speed Enhancing Drilling | |
| CN201507567U (en) | Spline-type universal shaft | |
| CN112983254B (en) | Screw drilling tool for directional drilling and workover | |
| CN108035679A (en) | A kind of method and pulse screw rod for improving helicoid hydraulic motor percussion drilling ability | |
| CN206801458U (en) | The axial impact instrument of speed changing function can be realized based on flexible tooth | |
| CN104120971B (en) | A kind of torsion generator that unidirectional impact is provided | |
| CN203905875U (en) | One-way high-frequency impact reversing motor | |
| CN204152424U (en) | A kind of down-hole helicoid hydraulic motor | |
| CN101644300B (en) | Sealed universal shaft | |
| CN104989291B (en) | The universal shaft type helicoid hydraulic motor of spline | |
| CN203097709U (en) | Screw drill drive shaft assembly | |
| CN207701078U (en) | A kind of pulse screw rod | |
| CN213743223U (en) | Anti-tripping motor assembly of screw drill | |
| CN204663417U (en) | A kind of mud motor sour jujube formula universal drive shaft | |
| CN201475187U (en) | Sealed universal shaft | |
| CN204402380U (en) | A kind of buffering aligning joint | |
| CN201218071Y (en) | Dynamic correcting polished rod sealer | |
| CN113863850B (en) | Single-double-bending conversion multifunctional hinge motor for ultra-short radius horizontal drilling | |
| CN205297382U (en) | Universal axis | |
| CN201110135Y (en) | Ball dental type versatile spindle for screw drill | |
| CN108518188A (en) | A kind of high antitorque screw drill sealing-ball hinge universal shaft | |
| CN223048752U (en) | Oilfield mining screw drilling tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 430223, No. 5, Chinese workers' garden, Temple Hill community, East Lake New Technology Development Zone, Wuhan, Hubei Patentee after: SINOPEC OILFIELD EQUIPMENT Corp. Address before: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Patentee before: KINGDREAM PLC |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180416 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 Corp. Patentee after: KINGDREAM PLC Address before: 430223, No. 5, Chinese workers' garden, Temple Hill community, East Lake New Technology Development Zone, Wuhan, Hubei Patentee before: SINOPEC OILFIELD EQUIPMENT Corp. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20201228 |