CN201053474Y - Universal axis - Google Patents
Universal axis Download PDFInfo
- Publication number
- CN201053474Y CN201053474Y CNU2007200240797U CN200720024079U CN201053474Y CN 201053474 Y CN201053474 Y CN 201053474Y CN U2007200240797 U CNU2007200240797 U CN U2007200240797U CN 200720024079 U CN200720024079 U CN 200720024079U CN 201053474 Y CN201053474 Y CN 201053474Y
- Authority
- CN
- China
- Prior art keywords
- shaft
- transmission shaft
- screw drill
- internal gear
- cardan
- 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 - Lifetime
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- Drilling And Boring (AREA)
Abstract
The utility model relates to a drive mechanism of an oil well drilling screwdrill, in particular to a cardan shaft suitable to replace the prior screwdrills. The utility model adopts the following technical proposal: the cardan shaft mainly comprises an internal gear, external gears, a steel ball, an upper transmission shaft and a lower eccentric shaft, wherein, the internal gear is used as an outer casing with one end connected with the stator casing of a screw drill, the other end connected with the outer casing of a main shaft and the intracavity provided with the upper transmission shaft and the lower eccentric shaft; the external gears are planet wheels which are respectively sleeved on the upper transmission shaft and a lower transmission shaft and mesh with the internal gear; moreover, the steel ball is arranged between the upper transmission shaft and the lower eccentric shaft. The utility model has the advantages that: (1) the cardan shaft can replace that of the prior screw drill; (2) the rotary speed transferred by the utility model is the revolution rotary speed of the rotor of the screw drill, and is faster than the rotary speed output by the cardan shaft of the prior screw drill, thereby increasing work efficiency; (3) the overall length of the screw drill is shortened; (4) the service life of the utility model is prolonged.
Description
One, technical field:
The utility model relates to a kind of driving mechanism of oil drilling helicoid hydraulic motor, particularly relates to a kind of cardan shaft that substitutes existing all kinds of helicoid hydraulic motors that is applicable to.
Two, background technique:
Screw drill is a kind of very widely instrument of using in present drilling well and the well workover.Do planetary motion during its working rotor, promptly existing rotation also has revolution.Rotor is passed to main shaft to rotation by a cardan shaft, drives drill bit by main shaft and creeps into., screw drill the existing spinning motion of rotor revolution motion is arranged again, the rotation rotating speed is low, revolution rotating speed height, by existing cardan shaft output be the rotation rotating speed, therefore, working efficiency is lower.The suffered power of cardan shaft has warping force, axial force and transverse force, the operating conditions more complicated, so operating life is lower.For satisfying usage requirement, people have designed different cardan shafts, but all do not tackle the problem at its root.
Three, summary of the invention:
The purpose of this utility model is exactly the above-mentioned defective that exists at prior art, and a kind of driving mechanism that replaces existing screw drill cardan shaft is provided, and has improved the cardan shaft of operating life and working efficiency.
Its technological scheme is: mainly be made up of internal gear, external gear, steel ball, last transmission shaft and following eccentric shaft, described internal gear is as shell, the stator case of one end and screw drill links to each other, and the shell of an end and main shaft links to each other, and inner chamber is provided with transmission shaft and following eccentric shaft; External gear is a planet wheel, be set in up and down on two transmission shafts, simultaneously and internal gear be meshed, be provided with a steel ball between last transmission shaft and the following eccentric shaft.
Described external gear lacks 1-4 tooth than internal gear, and promptly it is a kind of drive train of few poor tooth, and the opening of mud is arranged on the external gear.
The rotor of last transmission shaft and screw drill joins, and the output main shaft of following eccentric shaft and screw drill joins, and the opening of mud is arranged on it.
Be provided with a steel ball between last transmission shaft and the following eccentric shaft, be used for transmitting axial force, make the transmission shaft can rotation simultaneously, and relatively rotate between eccentric shaft and the external gear down.
The utlity model has following significant beneficial effect: the cardan shaft that 1, can replace existing screw drill; 2, the rotating speed that the utility model transmitted is the revolution rotating speed of screw drill rotor, and the rotating speed height than existing screw drill cardan shaft output has improved working efficiency; 3, can shorten the entire length of screw drill; 4, can improve working life.
Four, description of drawings:
Accompanying drawing 1 is a sectional view of the present utility model.
Five, embodiment:
In conjunction with the accompanying drawings, the utility model will be further described:
Mainly by internal gear 2, external gear 3, steel ball 4, go up transmission shaft 1 and following eccentric shaft 5 is formed, described internal gear 2 is as shell, the stator case of an end and screw drill links to each other, the shell of an end and main shaft links to each other, inner chamber is provided with transmission shaft 1 and following eccentric shaft 5; External gear 3 is a planet wheel, be set in up and down on two transmission shafts, simultaneously and internal gear 2 be meshed, be provided with a steel ball 4 between last transmission shaft 1 and the following eccentric shaft 5, be used for transmitting axial force, make the transmission shaft 1 can rotation simultaneously, and relatively rotate between eccentric shaft 5 and the external gear 3 down.
Wherein, external gear 3 lacks 1-4 tooth than internal gear 2, and promptly it is a kind of drive train of few poor tooth, and the opening A1 of mud is arranged on the external gear 3; Last transmission shaft 1 joins with the rotor of screw drill, and the output main shaft of following eccentric shaft 5 and screw drill joins, and the opening A2 of mud is arranged on it.
During work, the rotor of screw drill drives to be uploaded moving axis 1 and does planetary motion together, drives planet wheel 3 simultaneously and makes revolution motion, and the revolution of planet wheel 3 drives down eccentric shaft 5 again and does the dead axle motion, the be connected together revolution rotating speed of output screw brill of following eccentric shaft 5 and main shaft.Because last transmission shaft 1 is done planetary motion under the drive of screw drill rotor, relatively rotate so go up between transmission shaft 1 and the planet wheel 3, also relatively rotate between same planet wheel 3 and the following eccentric shaft 5.Rotor produces an axial force during again because of screw drill work, so the effect of steel ball 4 is to guarantee relatively rotating between planet wheel 3 and last transmission shaft 1 and the following eccentric shaft 5 when transmitting axial force.
Screw drill is that drilling fluid also has lubricated screw drill bearing, cooling drill bit, wash boring nitre and will bore the effect that nitre is taken the shaft bottom out of simultaneously by the driving work of drilling fluid.In order to ensure the circulation of drilling fluid, driving mechanism of the present invention designs circulation passage A1 and A2 that drilling fluid is arranged.
Claims (4)
1. cardan shaft, it is characterized in that: mainly form by internal gear (2), external gear (3), steel ball (4), last transmission shaft (1) and following eccentric shaft (5), described internal gear (2) is as shell, the stator case of one end and screw drill links to each other, the shell of one end and main shaft links to each other, and inner chamber is provided with transmission shaft (1) and following eccentric shaft (5); External gear (3) is a planet wheel, be set in up and down on two transmission shafts, simultaneously and internal gear (2) be meshed, be provided with a steel ball (4) between last transmission shaft (1) and the following eccentric shaft (5).
2. cardan shaft according to claim 1 is characterized in that: described external gear (3) lacks 1-4 tooth than internal gear (2), and promptly it is a kind of drive train of few poor tooth, and the opening (A1) of mud is arranged on the external gear (3).
3. cardan shaft according to claim 1 is characterized in that: the rotor of going up transmission shaft (1) and screw drill joins, and the output main shaft of following eccentric shaft (5) and screw drill joins, and the opening (A2) of mud is arranged on it.
4. cardan shaft according to claim 1, it is characterized in that: go up between transmission shaft (1) and the following eccentric shaft (5) and be provided with a steel ball (4), be used for transmitting axial force, make the transmission shaft (1) can rotation simultaneously, and relatively rotate between eccentric shaft (5) and the external gear (3) down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200240797U CN201053474Y (en) | 2007-06-28 | 2007-06-28 | Universal axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200240797U CN201053474Y (en) | 2007-06-28 | 2007-06-28 | Universal axis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201053474Y true CN201053474Y (en) | 2008-04-30 |
Family
ID=39393137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200240797U Expired - Lifetime CN201053474Y (en) | 2007-06-28 | 2007-06-28 | Universal axis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201053474Y (en) |
Cited By (1)
| 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 |
-
2007
- 2007-06-28 CN CNU2007200240797U patent/CN201053474Y/en not_active Expired - Lifetime
Cited By (2)
| 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 |
| CN104989291B (en) * | 2015-07-23 | 2017-12-22 | 德州联合石油机械有限公司 | The universal shaft type helicoid hydraulic motor of spline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080430 |
|
| CX01 | Expiry of patent term |