CN202788663U - Ball cage type universal shaft of screw drill - Google Patents
Ball cage type universal shaft of screw drill Download PDFInfo
- Publication number
- CN202788663U CN202788663U CN 201220291893 CN201220291893U CN202788663U CN 202788663 U CN202788663 U CN 202788663U CN 201220291893 CN201220291893 CN 201220291893 CN 201220291893 U CN201220291893 U CN 201220291893U CN 202788663 U CN202788663 U CN 202788663U
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- China
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- cage type
- ball cage
- type universal
- drive shaft
- hydraulic motor
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- Expired - Fee Related
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Abstract
A ball cage type universal shaft of a screw drill is used for connection and power transmission of the screw drill. Outer sleeve connectors at two ends of the ball cage type universal shaft are respectively connected with a drive shaft and a rotor of the screw drill. The outer sleeve connectors are respectively connected with a middle shaft through steel balls in a holding support. Sealing hoods are arranged on the end portions of the outer sleeve connectors, and press covers are arranged on the sealing hoods. A clamping ring, a safe drawing device are arranged between the sealing hoods and the holding support in sequence, and vibration absorbers are arranged at the connection positions between the outer sleeve connectors and the middle shaft. The ball cage type universal shaft is good in vibration absorption performance and sealing performance, and strong in high temperature resistance, high pressure resistance and wearing resistance, substantially prolongs the service life, can normally works under the environment of high temperature (180 DEG C), high pressure (7 a tm or 0.7 million pascal (M Pa)), can continuously and safely operate for more than 400 hours without failures, is strong in adaptability for borehole operation, convenient to mount and adjust, fast and simple and convenient to assemble and disassemble, and capable of shortening maintenance and replacement time of devices and improving efficiency of drilling operation.
Description
Technical field
The utility model relates to the well dynamic technical field of tools, is a kind of ball cage type universal drive shaft that is applicable to helicoid hydraulic motor specifically.
Background technology
As the important component part of helicoid hydraulic motor, universal drive shaft originally mostly adopted Petal type cardan axle, scratched shaft type universal drive shaft and ball-and-socket hinge style universal drive shaft, and Petal type cardan axle is simple in structure but the life-span is lower, and the life-span is many at 100-200 hour; Scratch shaft type universal drive shaft life-span height, but can not be used for the larger helicoid hydraulic motor of camber, price is higher simultaneously; Ball-joint formula universal drive shaft is many at 200-300 hour present application life, but component use above behind the certain hour in it, and it is comparatively serious to wear and tear, and existing hermetically-sealed construction poor sealing performance, mud can enter in two end joints, thereby accelerates its wearing and tearing, causes rubber part damaged; Above universal drive shaft shock absorption is poor simultaneously, high temperature resistant, high pressure is poor, pivot angle is little, parts wear is very fast, greatly reduce the whole service life of helicoid hydraulic motor well below other building block application life, and it is frequent to cause changing universal drive shaft in the use procedure, cost of production increases, drilling well work inefficiency.
Summary of the invention
For overcoming the deficiency of existing universal shaft structure, goal of the invention of the present utility model is to provide a kind of helicoid hydraulic motor ball cage type universal drive shaft, improves the purpose of the whole service life of helicoid hydraulic motor with realization.
For achieving the above object, the utility model comprises stator, bell and spigot joint is connected with power transmission shaft, the rotor of helicoid hydraulic motor respectively outside the two ends of ball cage type universal drive shaft, the outer bell and spigot joint respectively steel ball in retainer links to each other with jackshaft, realize and the connecting and transmission of power of the power transmission shaft of helicoid hydraulic motor, rotor, it is characterized in that: seal closure is equipped with in the end of outer bell and spigot joint, gland is equipped with in the end of seal closure, snap ring, safe draw-off gear are successively set between seal closure and the retainer, and attenuator is equipped with in the joint of outer bell and spigot joint and jackshaft.
The seal closure that described employing cyaniding nitrile rubber is made is with steel frame, and seal closure adopts interior bending compression-resistant structure, and seal closure and outer bell and spigot joint are conical surface compression fit.
Two lobe parts of described safe draw-off gear are by the dovetail groove mix proportion, and the external diameter that can form the safe draw-off gear of a reliable supporting body cooperates with the internal diameter of snap ring, interfixes.
Described snap ring is six lobe boss structures.
The utility model combines the design feature of general ball cage type synchronous universal axle, and operating mode and working environment special design for helicoid hydraulic motor compared with prior art have the following advantages.
1, shock-absorbing performance is good, and high temperature resistant, high pressure, wear-resistant ability are strong.Tightly raise by constant-speed transmission, smooth running, structure except having for the utility model, the large advantages such as (generally can reach 5 °) of angular compensatory amount, special design attenuator, use Hmp grease and high temperature resistant, high pressure material, significantly improve application life, can in high temperature (180 ℃), high pressure (7atm or 0.7 MPa) environment, work, can be in the continuous safe handling of down-hole fault-free more than 400 hours.
3, good seal performance.Adopt sealing material and project organization, but withstand high temperatures (180 ℃), high pressure (7atm or 0.7MPa) environment, and sealing performance is good.
4, underground work is adaptable, and it is convenient that installation is adjusted, and dismounting is quick, easy, can effectively shorten the maintenance of equipment and change the time, improves the drilling well operating efficiency.
Description of drawings
Fig. 1 is structure diagram of the present utility model.
Fig. 2 is the structural representation sketch of seal closure among Fig. 1.
Fig. 3 is that safety is drawn the structural representation sketch of dialling device among Fig. 1.
Fig. 4 is the lateral view of Fig. 3.
Fig. 5 is the structural representation sketch of snap ring among Fig. 1.
Fig. 6 is the lateral view of Fig. 5.
Fig. 7 is application sketch of the present utility model.
The specific embodiment
Such as Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, the outer bell and spigot joint 1 respectively steel ball in retainer 23 links to each other with jackshaft 8, seal closure 6 is equipped with in the end of outer bell and spigot joint 1, seal closure 6 adopts the cyaniding nitrile rubber to make, seal closure 6 is with steel frame 11, bending compression-resistant structure in seal closure 6 adopts, seal closure 6 intensity are high, high temperature resistant, high pressure characteristics is remarkable, flexible good, can be at high temperature (180 ℃), work in high pressure (7atm or the 0.7MPa) environment, seal closure 6 is conical surface compression fit with outer bell and spigot joint 1, and sealing effectiveness is reliable, has guaranteed that universal drive shaft in the course of the work, can sharply not wear and tear because of the intrusion of silt, gland 7 is equipped with in the end of seal closure 6; Snap ring 5, safe draw-off gear 4 are successively set between seal closure 6 and the retainer 2, two lobe parts of safe draw-off gear 4 are by the dovetail groove mix proportion, the internal diameter precision-fit of the external diameter of safe draw-off gear 4 and snap ring 5 interfixes, and can form a reliable supporting body; Snap ring 5 is through heat treatment, be six lobe boss structures, be mounted with safe draw-off gear 4 by rotation, and can bear enough shearing forces, safe draw-off gear 4 can pass through fixedly jackshaft 8 of snap ring 5, and jackshaft 8 can not come off from outer bell and spigot joint 1, when the helicoid hydraulic motor shell damages fracture, can promote drill bit, guarantee to improve the safety of helicoid hydraulic motor; Outer bell and spigot joint 1 is equipped with attenuator with the joint of jackshaft 8, attenuator is combined by elastic parts, dish reed 9 is contained between retainer 2 and the safe draw-off gear 4, multidiameter between outer bell and spigot joint 1 and the jackshaft 8 is provided with spring 10, effect by shock-absorbing parts 9, can alleviate the universal drive shaft internal vibration that universal drive shaft axial float in the course of the work produces, avoid the universal drive shaft parts to damage because of shock impacts, improve the application life of universal drive shaft.
As shown in Figure 6, bypass valve 12, rotor 14, ball cage type universal drive shaft 15, power transmission shaft 16 are combined in the stator 13, bell and spigot joint is connected with power transmission shaft 16, the rotor 14 of helicoid hydraulic motor respectively outside the two ends of ball cage type universal drive shaft 15, the outer bell and spigot joint respectively steel ball in retainer links to each other with jackshaft, realize being connected and transmission of power of power transmission shaft 16, rotor 14 of ball cage type universal drive shaft 15 and helicoid hydraulic motor, bypass valve 12 is contained on the rotor 14.
Claims (5)
1. helicoid hydraulic motor ball cage type universal drive shaft, comprise stator (13), outside the two ends of ball cage type universal drive shaft (15) bell and spigot joint (1) respectively with the power transmission shaft (16) of helicoid hydraulic motor, rotor (14) connects, outer bell and spigot joint (1) the respectively steel ball (3) in retainer (2) links to each other with jackshaft (8), realize the power transmission shaft (16) with helicoid hydraulic motor, connection and the transmission of power of rotor (14), it is characterized in that: seal closure (6) is equipped with in the end of outer bell and spigot joint (1), gland (7) is equipped with in the end of seal closure (6), snap ring (5), safe draw-off gear (4) is successively set between seal closure (6) and the retainer (2), and outer bell and spigot joint (1) is equipped with attenuator with the joint of jackshaft (8).
2. helicoid hydraulic motor ball cage type universal drive shaft according to claim 1, it is characterized in that: described seal closure (6) is with steel frame (11), bending compression-resistant structure in seal closure (6) adopts, seal closure (6) is conical surface compression fit with outer bell and spigot joint (1), and seal closure (6) adopts the cyaniding nitrile rubber to make.
3. helicoid hydraulic motor ball cage type universal drive shaft according to claim 1, it is characterized in that: two lobe parts of described safe draw-off gear (4) are by the dovetail groove mix proportion, the external diameter that can form the safe draw-off gear (4) of a reliable supporting body cooperates with the internal diameter of snap ring (5), interfixes.
4. helicoid hydraulic motor ball cage type universal drive shaft according to claim 1, it is characterized in that: described snap ring (5) is six lobe boss structures.
5. helicoid hydraulic motor ball cage type universal drive shaft according to claim 1, it is characterized in that: attenuator is combined by elastic parts, dish reed (9) is contained between retainer (2) and the safe draw-off gear (4), and the multidiameter between outer bell and spigot joint (1) and the jackshaft (8) is provided with spring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220291893 CN202788663U (en) | 2012-06-20 | 2012-06-20 | Ball cage type universal shaft of screw drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220291893 CN202788663U (en) | 2012-06-20 | 2012-06-20 | Ball cage type universal shaft of screw drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202788663U true CN202788663U (en) | 2013-03-13 |
Family
ID=47815939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220291893 Expired - Fee Related CN202788663U (en) | 2012-06-20 | 2012-06-20 | Ball cage type universal shaft of screw drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202788663U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510865A (en) * | 2012-06-20 | 2014-01-15 | 襄阳博亚精工装备股份有限公司 | Ball-cage-type universal shaft of screw drill |
| CN105531438A (en) * | 2013-08-15 | 2016-04-27 | 国民油井华高有限公司 | Systems and methods for increasing the life of downhole driveshaft assemblies |
-
2012
- 2012-06-20 CN CN 201220291893 patent/CN202788663U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510865A (en) * | 2012-06-20 | 2014-01-15 | 襄阳博亚精工装备股份有限公司 | Ball-cage-type universal shaft of screw drill |
| CN103510865B (en) * | 2012-06-20 | 2016-01-20 | 襄阳博亚精工装备股份有限公司 | Ball-cage-type universal shaft of screw drill |
| CN105531438A (en) * | 2013-08-15 | 2016-04-27 | 国民油井华高有限公司 | Systems and methods for increasing the life of downhole driveshaft assemblies |
| CN105531438B (en) * | 2013-08-15 | 2018-07-10 | 国民油井华高有限公司 | System and method for increasing the down-hole drive shaft assembly service life |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Aibin Inventor after: Wang Li Inventor after: Li Wenxi Inventor after: Wang Chaoxiang Inventor after: Xu Ping Inventor after: Li Mingqian Inventor after: Ren Xianke Inventor before: Zhang Aibin Inventor before: Wang Li Inventor before: Li Wenxi Inventor before: Wang Chaoxiang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHANG AIBIN WANG LI LI WENXI WANG CHAOXIANG TO: ZHANG AIBIN WANG LI LI WENXI WANG CHAOXIANG XU PING LI MINGQIAN REN XIANKE |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20160620 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |