CN204476253U - A kind of down-hole screw motor transmission device - Google Patents
A kind of down-hole screw motor transmission device Download PDFInfo
- Publication number
- CN204476253U CN204476253U CN201520093994.6U CN201520093994U CN204476253U CN 204476253 U CN204476253 U CN 204476253U CN 201520093994 U CN201520093994 U CN 201520093994U CN 204476253 U CN204476253 U CN 204476253U
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- CN
- China
- Prior art keywords
- housing
- power transmission
- discharge opeing
- transmission device
- shaft
- 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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- Earth Drilling (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Drilling And Boring (AREA)
Abstract
A kind of down-hole screw motor transmission device, comprise housing and run through the power transmission shaft installed in it, described housing comprises the discharge opeing housing, cartridge housing and the positioning housing that connect successively from top to bottom, and described discharge opeing housing is provided with outage; The upper end of described discharge opeing housing is provided with the first top connection, and the lower end of described positioning housing is provided with the first lower contact; Described power transmission shaft is fixing in the housing by the thrust bearing group be arranged in cartridge housing; Described power transmission shaft comprises axle and lower shaft, is connected therebetween by upper and lower mandrel connector; The upper end of described upper axle is provided with the second top connection, and the lower end of described lower shaft is provided with the second lower contact.Compared with conventional motor transmission device, this device is provided with drilling fluid plug hole (outage), does not need fluid passage, and structure is simple, size is little, can be satisfied with radial direction well job requirements.
Description
Technical field
The utility model belongs to Petroleum Down-hole Tool field, especially a kind of down-hole screw motor transmission device.
Background technology
At present, the transmission device being applied to down-hole screw motor mainly contains universal drive shaft and power transmission shaft composition.The effect of universal drive shaft is the fixed-axis rotation planetary motion of motor being changed into power transmission shaft, and the moment of torsion produce motor and rotating speed pass to power transmission shaft.Universal drive shaft adopts lobe shape and spherical mostly.The effect of power transmission shaft is that the rotary power of motor is passed to drill bit, bears axis and radial load that the pressure of the drill produces simultaneously.Current this transmission device size is large, complex structure, installation inconvenience, and and this structure has fluid passage, namely all need to be designed with fluid passage (during operation in universal drive shaft and power transmission shaft, drilling fluid needs to discharge through motor, universal drive shaft and power transmission shaft successively,), cause the designs such as the bearing seal structure of universal shaft structure, power transmission shaft complicated, make trouble; Comprehensive, prior art can not meet the needs of radial direction well.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides that a kind of structure is simple, the little down-hole screw motor transmission device being convenient to making and installation of size.
The concrete technical scheme of the utility model is: comprise housing and run through the power transmission shaft installed in it, described housing comprises the discharge opeing housing, cartridge housing and the positioning housing that connect successively from top to bottom, and described discharge opeing housing is provided with outage; The upper end of described discharge opeing housing is provided with the first top connection, and the lower end of described positioning housing is provided with the first lower contact; Described power transmission shaft is fixing in the housing by the thrust bearing group be arranged in cartridge housing; Described power transmission shaft comprises axle and lower shaft, is connected therebetween by upper and lower mandrel connector; The upper end of described upper axle is provided with the second top connection, and the lower end of described lower shaft is provided with the second lower contact.During use, the first top connection is connected with motor stator, and the first lower contact is connected with guiding device, and the second top connection is connected with motor rotor, and the second lower contact is connected with Universal flexible axle.
Described first top connection and the second top connection are nipple.
Described second lower contact is nipple.
Compared with conventional motor transmission device, this device is provided with drilling fluid plug hole (outage), does not need fluid passage, and structure is simple, size is little, can be satisfied with radial direction well job requirements.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1, upper axle; 2, discharge opeing housing; 3, upper and lower mandrel connector; 4, lower shaft; 5, bearing spacer; 6, cartridge housing; 7, thrust bearing; 8, positioning housing.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.
See Fig. 1, a kind of down-hole screw motor transmission device, comprises axle 1, lower shaft 4, up and down mandrel connector 3, thrust bearing 7, bearing spacer 5, discharge opeing housing 2, cartridge housing 6, positioning housing 8; Discharge opeing housing 2, cartridge housing 6 and positioning housing 8 connect from top to bottom successively, and discharge opeing housing 2 outer wall is provided with outage; Upper axle 1 is connected with lower shaft 4 by upper and lower mandrel connector 3, and its entirety is run through and is fixed in outside housing by thrust bearing group (comprising upper and lower two thrust bearings 7).Upper axle 1 is connected with motor rotor output screw thread, and discharge opeing housing 2 is threaded with motor stator, and is screwed.Lower shaft 4 is connected with Universal flexible male thread, and positioning housing 8 is connected by butterfly slide block with guiding device.During work, motor rotor is by upper axle 1, up and down mandrel connector 3, lower shaft 4 transmitting torque to Universal flexible axle, and guiding device provides reaction torque by discharge opeing housing 2, cartridge housing 6, positioning housing 8 for motor stator.Drilling fluid after motor, discharge opeing housing 2 of entering, and directly being flowed out by the outage on it.
This device is provided with drilling fluid plug hole (outage), does not need fluid passage, and structure is simple, size is little, can be satisfied with radial direction well job requirements.And this device can simply dock with guiding device, provide moment of torsion, size is suitable, meets the needs of radial direction well completely.
For those skilled in the art, under the prerequisite not departing from the utility model principle, likely to concrete size, or partial structurtes make some improvements and modifications, and these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. a down-hole screw motor transmission device, is characterized in that: comprise housing and run through the power transmission shaft installed in it, described housing comprises the discharge opeing housing, cartridge housing and the positioning housing that connect successively from top to bottom, and described discharge opeing housing is provided with outage; The upper end of described discharge opeing housing is provided with the first top connection, and the lower end of described positioning housing is provided with the first lower contact; Described power transmission shaft is fixing in the housing by the thrust bearing group be arranged in cartridge housing; Described power transmission shaft comprises axle and lower shaft, is connected therebetween by upper and lower mandrel connector; The upper end of described upper axle is provided with the second top connection, and the lower end of described lower shaft is provided with the second lower contact.
2. down-hole according to claim 1 screw motor transmission device, is characterized in that: described first top connection and the second top connection are nipple.
3. down-hole according to claim 1 and 2 screw motor transmission device, is characterized in that: described second lower contact is nipple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520093994.6U CN204476253U (en) | 2015-02-10 | 2015-02-10 | A kind of down-hole screw motor transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520093994.6U CN204476253U (en) | 2015-02-10 | 2015-02-10 | A kind of down-hole screw motor transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204476253U true CN204476253U (en) | 2015-07-15 |
Family
ID=53632055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520093994.6U Expired - Fee Related CN204476253U (en) | 2015-02-10 | 2015-02-10 | A kind of down-hole screw motor transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204476253U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332667A (en) * | 2015-11-26 | 2016-02-17 | 长江大学 | Coiled tubing tractor |
-
2015
- 2015-02-10 CN CN201520093994.6U patent/CN204476253U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332667A (en) * | 2015-11-26 | 2016-02-17 | 长江大学 | Coiled tubing tractor |
| CN105332667B (en) * | 2015-11-26 | 2018-07-24 | 长江大学 | A kind of coiled tubing tractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 257067 No. two, 233 South Road, Shandong, Dongying Patentee after: SHANDONG KERUI OILFIELD SERVICE GROUP Co.,Ltd. Address before: 257067 No. two, 233 South Road, Shandong, Dongying Patentee before: SHANDONG KERUI INTERNATIONAL OIL GAS ENGINEERING Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200507 Address after: 610000 Area 408, 4th Floor B, Space Road, Longtan Industrial Park, Chenghua District, Chengdu City, Sichuan Province Patentee after: Sichuan Ruidu Petroleum Engineering Technology Service Co.,Ltd. Address before: 257067 No. two, 233 South Road, Shandong, Dongying Patentee before: SHANDONG KERUI OILFIELD SERVICE GROUP Co.,Ltd. |
|
| 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: 20150715 Termination date: 20210210 |