CN201087694Y - Safe and reliable long-life screw drill - Google Patents
Safe and reliable long-life screw drill Download PDFInfo
- Publication number
- CN201087694Y CN201087694Y CNU2007201746113U CN200720174611U CN201087694Y CN 201087694 Y CN201087694 Y CN 201087694Y CN U2007201746113 U CNU2007201746113 U CN U2007201746113U CN 200720174611 U CN200720174611 U CN 200720174611U CN 201087694 Y CN201087694 Y CN 201087694Y
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- CN
- China
- Prior art keywords
- drive shaft
- universal
- universal drive
- joint
- push rod
- 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
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Abstract
The utility model discloses a screw drilling tool which is safe, reliable and has long service life, the screw drilling tool comprises a motor stator and a universal shaft shell which are fixed and connected together through a screw thread connection. The universal shaft shell is provided with a universal shaft which is connected with a motor assembly, the upper end of the motor stator is provided with an anti-dropping nut, the screw thread connection part of the motor stator and the universal shaft shell is positioned at the middle joint of the universal shaft, the size of the inside diameter of the screw thread connection part is less than the size of the outside diameter of a universal joint above the middle joint of the universal shaft. The utility model not only has simple structure, does not need to increase the production cost and change the production equipment, and is very easy to manufacture, but also has high connecting strength of the screw thread connection part, is not easy to rupture, has long service life, big work torque, high reliability for preventing dropping, and safe usage.
Description
Technical field
The helicoid hydraulic motor that the utility model uses when relating to a kind of oil and other drillng operation, particularly safe and reliable long-life helicoid hydraulic motor.
Background technology
At present, helicoid hydraulic motor commonly used is formed component and is mainly contained driving-shaft assembly, universal drive shaft, universal drive shaft housing, motor assembly, anti-lost joint, anti-lost nut and by-pass valve assembly etc., these component is assembled up by technology promptly constitute the complete helicoid hydraulic motor of a cover.The ubiquitous weak point of existing helicoid hydraulic motor is, the external shell threaded joints is positioned at the universal drive shaft upper end, be bordering on partially in the middle of the helicoid hydraulic motor, when being subjected to factor affecting such as the pressure of the drill, hole deviation when helicoid hydraulic motor, elastic bending deflection take place easily, structural strength is low, make this threaded joints easily rupture, and the fluctuation of motor output torque is bigger in the use, anti-lost system reliability deficiency, cause helicoid hydraulic motor shorter application life, accident rate is higher.
The utility model content
The purpose of this utility model is to provide a kind of safe and reliable long-life helicoid hydraulic motor, not only simple in structure, need not to increase cost of production and change production equipment, be highly susceptible to making, and the bonding strength height of threaded joints, not easy fracture, long service life, operation torque is big, and anti-lost reliability height is safe in utilization.
The purpose of this utility model is achieved in that a kind of safe and reliable long-life helicoid hydraulic motor, comprise the motor stator and the universal drive shaft housing that are solidly connected with each other by being threaded, the universal drive shaft that links to each other with motor assembly is housed in the universal drive shaft housing, the upper end of motor rotor is being provided with anti-lost nut, the threaded joints of said motor stator and universal drive shaft housing is positioned at transition joint place of universal drive shaft, and the internal diameter size of this threaded joints is less than the universal joint outside dimension of universal drive shaft transition joint place top.
The utility model is owing to move down into threaded joints the position of universal drive shaft transition joint from the universal drive shaft upper end position, and the internal diameter size of threaded joints suitably reduced, make the wall thickness of threaded joints obtain thickening, thereby improved structural strength, do not influence mud flow rate again.Compare with present helicoid hydraulic motor like this, this threaded joints is away from the helicoid hydraulic motor centre position, the flexural stress that has been subjected to when having reduced connecting thread work, the intensity and the supporting capacity of universal drive shaft housing have been improved, prolonged the application life of shell body, simultaneously since the internal diameter size of this threaded joints less than the universal joint outside dimension of universal drive shaft transition joint place top, thereby on the basis of anti-lost structures such as the existing anti-lost joint of helicoid hydraulic motor, anti-lost nut, formed the important anti-lost structure in a place again, improved the reliability of anti-lost system.Therefore, the utility model is not only simple in structure, need not to increase cost of production and changes production equipment, is highly susceptible to making, and the bonding strength height of threaded joints, easy fracture not, long service life, operation torque is big, anti-lost reliability height, safe in utilization, reduced accident rate.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 looks cross-sectional view for master of the present utility model;
Fig. 2 is the A portion structure for amplifying schematic diagram among Fig. 1;
Fig. 3 is the structural representation of the utility model universal drive shaft;
Fig. 4 is the B portion structure for amplifying schematic diagram among Fig. 3.
The specific embodiment
A kind of safe and reliable long-life helicoid hydraulic motor as shown in Figure 1 and Figure 2, comprises the motor stator 13 and the universal drive shaft housing 16 that are solidly connected with each other by being threaded, and the universal drive shaft that links to each other with motor assembly is housed in the universal drive shaft housing 16.The upper end of motor rotor 14 is being provided with anti-lost nut, said anti-lost nut is anti-lost to jacking nut 11,10, anti-lost thread rotary orientation to jacking nut 11,10 is opposite, the frictional force that is subjected to any direction so the phenomenon that releases can not occur, can prevent effectively that nut from coming off, improve anti-loosing effect, guarantee that this locates anti-lost reliability of structure.The threaded joints of said motor stator 13 and universal drive shaft housing 16 is positioned at transition joint 9 places of universal drive shaft, and the internal diameter size of this threaded joints is less than universal joint 8 outside dimensions of universal drive shaft transition joint place top.This threaded joints is away from the helicoid hydraulic motor centre position, the flexural stress that has been subjected to when having reduced connecting thread work, the intensity and the supporting capacity of universal drive shaft housing 16 have been improved, prolonged the application life of shell body, simultaneously since the internal diameter size of this threaded joints less than universal joint 8 outside dimensions of top, universal drive shaft transition joint 9 places, thereby on the basis of anti-lost structures such as the existing anti-lost joint 12 of helicoid hydraulic motor, anti-lost nut, formed the important anti-lost structure in a place again, improved the reliability of anti-lost system.
Now the universal drive shaft overwhelming majority of using all is the petal type universal drive shaft, and its anti-lost function is exactly the mutual embedding extension effect that has utilized between the petal adjacent on the universal joint.In actual use, when more serious wearing and tearing appear in the petal side, the mutual embedding extension effect of petal will be lost efficacy on the universal joint, in case this moment motor stator and universal drive shaft housing one of them rupture, the drop accident of down-hole of the part below the fracture on the helicoid hydraulic motor all can appear because of the disengagement of universal joint petal.In order to address this problem, as shown in Figure 3, Figure 4, vertically suit a push rod 7 in universal joint 8 endoporus of universal drive shaft, and the upper/lower terminal of push rod 7 all is the spherical crown shape; Be horizontally disposed with ringwise upper and lower steel ball rolling channel respectively at the upper/lower terminal face of universal joint 8 endoporus and the intersection of universal joint 8 endoporus hole walls, be horizontally disposed with the ring-shaped groove of placing steel ball on the upper periphery edge of push rod 7, the uniform steel ball 6 that is being provided with in the annular space that constitutes between this ring-shaped groove and the last steel ball rolling channel; The spherical crown shape lower end cooperation of push rod 7 is installed in down in the steel ball rolling channel; In the universal drive shaft upper/lower terminal respectively by the upper and lower joint that is being threaded, upper and lower joint center is being provided with respectively and the contacted tip-lever support 2 of push rod 7 upper and lower two spherical crown shape end faces, outside, push rod 7 upper end is distinguished horizontal set from down to up and annular kick back 5 and check ring 4, check ring 4 can be installed in the spring-leaf retainer 3 of an annular, annular kick back 5 blocks steel ball 6, and check ring 4 is compressed by top connection 1 lower end.The spherical crown shape lower end of push rod 7 and said spin 6 have just stoped the disengagement of universal joint petal like this, thereby make universal drive shaft have independently anti-lost function, have further strengthened the reliability of the anti-lost system of helicoid hydraulic motor, have greatly reduced accident rate.
Claims (3)
1. safe and reliable long-life helicoid hydraulic motor, comprise the motor stator (13) and the universal drive shaft housing (16) that are solidly connected with each other by being threaded, the universal drive shaft housing is equipped with the universal drive shaft that links to each other with motor assembly in (16), the upper end of motor rotor (14) is being provided with anti-lost nut, it is characterized in that: the threaded joints of said motor stator (13) and universal drive shaft housing (16) is positioned at the transition joint (9) of universal drive shaft to be located, and the internal diameter size of this threaded joints is less than universal joint (8) outside dimension of universal drive shaft transition joint place top.
2. safe and reliable long-life helicoid hydraulic motor according to claim 1 is characterized in that: said anti-lost nut is anti-lost to jacking nut (11,10).
3. safe and reliable long-life helicoid hydraulic motor according to claim 1 and 2 is characterized in that: vertically suit a push rod (7) in universal joint (8) endoporus of universal drive shaft, and the upper/lower terminal of push rod (7) all is the spherical crown shape; Be horizontally disposed with ringwise upper and lower steel ball rolling channel respectively at the upper/lower terminal face of universal joint (8) endoporus and the intersection of universal joint (8) endoporus hole wall, be horizontally disposed with the ring-shaped groove of placing steel ball on the upper periphery edge of push rod (7), the uniform steel ball (6) that is being provided with in the annular space that constitutes between this ring-shaped groove and the last steel ball rolling channel; The spherical crown shape lower end cooperation of push rod (7) is installed in down in the steel ball rolling channel; In the universal drive shaft upper/lower terminal respectively by the upper and lower joint that is being threaded, upper and lower joint center is being provided with respectively and the upper and lower two contacted tip-lever supports of spherical crown shape end face (2) of push rod (7), outside, push rod (7) upper end is distinguished horizontal set from down to up and annular kick back (5) and check ring (4), annular kick back (5) blocks steel ball (6), and check ring (4) is compressed by top connection (1) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201746113U CN201087694Y (en) | 2007-08-15 | 2007-08-15 | Safe and reliable long-life screw drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201746113U CN201087694Y (en) | 2007-08-15 | 2007-08-15 | Safe and reliable long-life screw drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201087694Y true CN201087694Y (en) | 2008-07-16 |
Family
ID=39635287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201746113U Expired - Fee Related CN201087694Y (en) | 2007-08-15 | 2007-08-15 | Safe and reliable long-life screw drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201087694Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852455A (en) * | 2012-09-28 | 2013-01-02 | 李少江 | Percussion drilling tool |
| CN103982134A (en) * | 2014-05-28 | 2014-08-13 | 西南石油大学 | Reverse circulation drilling tool |
| CN107407134A (en) * | 2015-04-17 | 2017-11-28 | 哈利伯顿能源服务公司 | Coupling mechanism for drive shaft transmission component |
-
2007
- 2007-08-15 CN CNU2007201746113U patent/CN201087694Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852455A (en) * | 2012-09-28 | 2013-01-02 | 李少江 | Percussion drilling tool |
| CN103982134A (en) * | 2014-05-28 | 2014-08-13 | 西南石油大学 | Reverse circulation drilling tool |
| CN103982134B (en) * | 2014-05-28 | 2016-01-20 | 西南石油大学 | A kind of reverse circulation drilling well tool |
| CN107407134A (en) * | 2015-04-17 | 2017-11-28 | 哈利伯顿能源服务公司 | Coupling mechanism for drive shaft transmission component |
| US10760351B2 (en) | 2015-04-17 | 2020-09-01 | Halliburton Energy Services, Inc. | Coupling mechanism for driveshaft transmission assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING ZHONGSHI DAXINYUAN INVESTMENT CO., LTD. Free format text: FORMER OWNER: LI SHAOJIANG Effective date: 20091211 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091211 Address after: No. 18, Zhenxing Road, Changping District science and Technology Park, Beijing, 102249 Patentee after: Beijing China Stone Investment Co., Ltd. Address before: Room 7, unit 1, Hua Jing garden, 602 Renmin West Road, the Xinjiang Uygur Autonomous Region, Korla, China: 841000 Patentee before: Li Shaojiang |
|
| ASS | Succession or assignment of patent right |
Owner name: BEIJING NORTH RIVER OIL DRILLING DOWNHOLE TOOLS CO Free format text: FORMER OWNER: BEIJING CHINA UNIVERSITY OF PETROLEUM, XINYUAN INVESTMENT CO., LTD. Effective date: 20100712 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100712 Address after: 102249, 18, Zhenxing Road, Changping District science and Technology Park, Beijing Patentee after: Beijing north oil well drilling tool Co., Ltd. Address before: 102249, 18, Zhenxing Road, Changping District science and Technology Park, Beijing Patentee before: Beijing China Stone Investment Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080716 Termination date: 20120815 |