CN201152321Y - Cardan shaft device - Google Patents
Cardan shaft device Download PDFInfo
- Publication number
- CN201152321Y CN201152321Y CNU2008200225325U CN200820022532U CN201152321Y CN 201152321 Y CN201152321 Y CN 201152321Y CN U2008200225325 U CNU2008200225325 U CN U2008200225325U CN 200820022532 U CN200820022532 U CN 200820022532U CN 201152321 Y CN201152321 Y CN 201152321Y
- Authority
- CN
- China
- Prior art keywords
- cardan shaft
- chamber
- shaft device
- transmission shafts
- lubricant oil
- 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 universal shaft device comprising a universal shaft and two transmission shafts connected at the two ends of the universal shaft. The joint part of the universal shaft is provided with a needle bearing. Due to the adoption of the needle bearing, the rated rotation speed of the small universal shaft is improved.
Description
Technical field
The utility model relates to a kind of transmission part of modular structure, more precisely is a kind of cardan shaft device that is applied to electrical submersible twin-screw oil extraction pump.
Background technique
Electrical submersible twin-screw oil extraction pump is a kind of rodless pumping operation equipment, can be used for the oil extraction operation of various hole conditions such as inclined shaft, horizontal well.
The power of electrical submersible twin-screw oil extraction pump be by oil-submersible motor by small-sized cardan shaft, gear transmission to the two screw pump working portion.
The position of cardan shaft inefficacy easy to wear when work is movable joint.The joint part of common small-sized cardan shaft all is to connect by bearing pin, and lubricated is grease lubrication.And the rotating speed of electrical submersible twin-screw oil extraction pump is higher, and all more than 1000rpm, it is too high and ablate that bearing pin athletic meeting under so high speed produces local temperature rise, can't guarantee working life.
In view of above reason, be necessary to design a kind of can under high speed, the running and can guarantee the cardan shaft device in certain working life again.
The model utility content
Technical problem to be solved in the utility model provides a kind of high rotating speed, the cardan shaft device of long-life.
In order to address the above problem, the utility model is taked following technological scheme:
A kind of cardan shaft device comprises cardan shaft and two transmission shafts that are connected the cardan shaft two ends, and the joint part of cardan shaft is installed needle bearing.
Described cardan shaft is in the chamber, and two end axles is stretched out chamber outward to connect miscellaneous part, and the chamber two ends all have through hole, and chamber interior is full of lubricant oil, and lubricant oil can be communicated with the lubricant oil of miscellaneous part by through hole.
The housing of described chamber is connected with module up and down by inipple and flanged joint, and described two transmission shafts link to each other with the axle of module up and down by spline housing.
The positioning bearing of described two transmission shafts is sliding bearings.
The beneficial effects of the utility model are: adopt needle bearing to improve the rated speed of small-sized cardan shaft; Boundary dimension is identical with common small-sized cross-axle universal shaft coupling, is convenient to design selection; The independent cavity structure, full flooded lubrication has guaranteed working life of cardan shaft.
Description of drawings
Fig. 1 is the structural drawing of cardan shaft device among the embodiment.
Number in the figure is:
1, joint 2, transmission shaft 3, alignment bearing
4, upper bearing bracket 5, housing 6, cardan shaft
7, step 8, flanged joint 9, needle bearing
10, chamber 11, through hole
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
With reference to Fig. 1, a kind of cardan shaft device comprises cardan shaft 6 and two transmission shafts 2 that are connected the cardan shaft two ends, and small-sized needle bearing 9 is installed on the bearing pin of small-sized cardan shaft 6 joint parts, to improve the rated speed of cardan shaft.Adopt the boundary dimension cardan shaft identical, be convenient to design selection with common small-sized cross-axle universal shaft coupling.
For satisfying the lubrication problem of small-sized cardan shaft, it is designed to an independent module, described cardan shaft 6 is in the chamber 10, it is outer to connect miscellaneous part that two end axles is stretched out chamber 10, chamber 10 two ends all have through hole 11, chamber 10 inside are full of lubricant oil, and lubricant oil can be communicated with the lubricant oil of miscellaneous part by through hole 11, can carry out sufficient lubrication and heat radiation to needle bearing 9.The independent cavity structure, full flooded lubrication has guaranteed working life of cardan shaft.
Housing 5 right-hand members of chamber are connected with other module with flanged joint 8 by inipple, and the other end is connected with other modules by joint 1, and described two transmission shafts 2 spool link to each other by spline housing and module up and down.
One end of a transmission shaft 2 passes through alignment bearing 3 is connected described chamber with upper bearing bracket 4 housing 5, and the other end is connected with described flanged joint 8 by the housing 5 of alignment bearing and step 7 and chamber.Described alignment bearing 3 is a sliding bearing.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1, a kind of cardan shaft device comprises cardan shaft and two transmission shafts that are connected the cardan shaft two ends, it is characterized in that the joint part of cardan shaft is installed needle bearing.
2, cardan shaft device according to claim 1 is characterized in that, described cardan shaft is in the chamber, it is outer to connect miscellaneous part that two end axles is stretched out chamber, the chamber two ends all have through hole, and chamber interior is full of lubricant oil, and lubricant oil can be communicated with the lubricant oil of miscellaneous part by through hole.
3, cardan shaft device according to claim 2 is characterized in that, the housing of described chamber is connected with module up and down by inipple and flanged joint, and described two transmission shafts link to each other with the axle of module up and down by spline housing.
4, cardan shaft device according to claim 1 is characterized in that, the positioning bearing of described two transmission shafts is sliding bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200225325U CN201152321Y (en) | 2008-05-14 | 2008-05-14 | Cardan shaft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200225325U CN201152321Y (en) | 2008-05-14 | 2008-05-14 | Cardan shaft device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201152321Y true CN201152321Y (en) | 2008-11-19 |
Family
ID=40127999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200225325U Expired - Fee Related CN201152321Y (en) | 2008-05-14 | 2008-05-14 | Cardan shaft device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201152321Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018107948A1 (en) * | 2016-12-12 | 2018-06-21 | 吴谞冠 | Flexible transmission device |
-
2008
- 2008-05-14 CN CNU2008200225325U patent/CN201152321Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018107948A1 (en) * | 2016-12-12 | 2018-06-21 | 吴谞冠 | Flexible transmission device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081119 Termination date: 20140514 |