CN201110135Y - Ball dental type versatile spindle for screw drill - Google Patents
Ball dental type versatile spindle for screw drill Download PDFInfo
- Publication number
- CN201110135Y CN201110135Y CNU2007201576983U CN200720157698U CN201110135Y CN 201110135 Y CN201110135 Y CN 201110135Y CN U2007201576983 U CNU2007201576983 U CN U2007201576983U CN 200720157698 U CN200720157698 U CN 200720157698U CN 201110135 Y CN201110135 Y CN 201110135Y
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- tooth
- joint
- endosphere
- ball
- spherical
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Abstract
The utility model relates to a helicoid drill spherical tooth type cardan shaft, which comprises a male joint, an inner spherical tooth middle shaft and an inner spherical tooth joint, wherein the inner spherical tooth middle shaft, the male joint and the inner spherical tooth joint are respectively connected through a spherical tooth type universal joint, and the spherical tooth type universal joint comprises an outer spherical tooth connecting shaft whose end portion is a ball-shaped ball joint, a plurality of arc-shaped teeth are evenly distributed on the front half spherical face of the ball joint, the central shaft of the inner spherical tooth and the end face of the inner spherical tooth joint are respectively processed with spherical surface grooves, an inner arc-shaped tooth is processed in the spherical surface grooves, and the ball joint is mounted in the spherical face groove on the inner spherical tooth middle shaft or the inner spherical tooth joint through a ball head cover. The helicoid drill spherical tooth type cardan shaft of the utility model has the advantages of little rotation angle, big transmitted torque, excellent stability and flexible guiding, which achieves canned oil-bath lubrication, therefore, the service span of the universal shaft is effectively prolonged, thereby improving the service span of the total machine of the helicoid drills.
Description
Technical field
The utility model relates to the helicoid hydraulic motor that oil drilling or workover treatment are used, and particularly relates to a kind of helicoid hydraulic motor universal drive shaft.
Background technology
In oil exploitation and workover treatment, mud motor particularly helicoid hydraulic motor application more and more widely.Helicoid hydraulic motor comprises that mainly by-pass valve assembly, motor assembly, universal drive shaft assembly and driving-shaft assembly constitute, each several part connects from top to bottom successively, wherein upper end motor rotor connection, the lower end of universal drive shaft are connected with power transmission shaft, its effect is the dead axle rotation that the planetary motion of motor rotor is changed into power transmission shaft, and moment of torsion and rotating speed that motor is produced pass to drill bit reposefully.As seen, the universal drive shaft assembly is the very crucial parts of helicoid hydraulic motor, and its structural performance is directly connected to the drilling efficiency and the application life of helicoid hydraulic motor.
The universal drive shaft of helicoid hydraulic motor mainly contains petal type and two kinds of form of structure of ball cage type at present.The petal type universal drive shaft is simple in structure, and is easy to manufacture, and transfer torque is big, but machining accuracy is low, and galloping has inertia, and corner is big, and mechanical efficiency is low, generally be with mud as lubricant medium, the rate of wear is fast, application life is short.Improve to some extent though the patent No. is 200620084055.6 petal type universal drive shaft, but still fail fundamentally to address the above problem.
The ball cage type universal drive shaft is with the steel ball transfer torque, stable drive, have lubricated, guiding flexibly, but its requirement on machining accuracy height, manufacture difficulty is big, and invar ball work contact surface is little, transfer torque is limited, there is short defective in application life equally in the rubbing surface fatiguability.
Summary of the invention
The purpose of this utility model is exactly at above-mentioned the deficiencies in the prior art, provide a kind of simple and compact for structure, greasy property good, transfer torque is big, the dental formula versatile spindle of positive displacement drill ball of long service life.
For achieving the above object, the utility model dental formula versatile spindle of positive displacement drill ball, comprise male joint, endosphere tooth jackshaft and endosphere toe joint head, be connected by the spherical tooth type universal joint respectively between endosphere tooth jackshaft and male joint, endosphere tooth jackshaft and the endosphere toe joint head.Said spherical tooth type universal joint comprises the ectosphere tooth coupling spindle that is connected with male joint or endosphere tooth jackshaft, the end of ectosphere tooth coupling spindle is the spherical shape ball-joint, on the preceding hemisphere face of this ball-joint, be evenly distributed with many outer arcuate teeth, end face at endosphere tooth jackshaft and endosphere toe joint head respectively is processed with spherical groove, be processed with the arc tooth that is meshed with outer arcuate tooth on the above-mentioned ball-joint in this spherical groove, be fixed with the bulb lid in the end of endosphere tooth jackshaft and endosphere toe joint head, the spherical groove that the bulb cover tape has the ball-joint rear portion sphere with ectosphere tooth coupling spindle end to adapt, the bulb lid is fixedlyed connected with endosphere tooth jackshaft and endosphere toe joint head, and ball-joint is movably arranged in the spherical inner chamber of the spherical groove formation on bulb lid and endosphere tooth jackshaft or the endosphere toe joint head.
Dental formula versatile spindle of positive displacement drill ball as mentioned above, ball-joint top at its ectosphere tooth coupling spindle is processed with little spherical groove, bottom at the endosphere tooth jackshaft and the spherical groove of endosphere toe joint head also is processed with the little spherical groove consistent with above-mentioned bead face groove diameter, that the position is corresponding respectively, in the cavity that above-mentioned bead face groove forms locking ball is installed.
Dental formula versatile spindle of positive displacement drill ball is processed with the oil filler point that communicates with spherical groove on ball tooth jackshaft and the endosphere toe joint head within it as mentioned above.Ball toothed portion lubrication and seal can be processed with cannelure on the sphere of ball-joint rear portion, sealing ring is housed in the cannelure, also can in the circular hole of bulb lid sealing ring be housed.
Dental formula versatile spindle of positive displacement drill ball as mentioned above, its another lubricating system is to have the oil filler point that leads to its end face in endosphere tooth jackshaft and male joint, coats elastic corrugated sheath respectively at male joint and endosphere tooth jackshaft and endosphere tooth jackshaft and endosphere toe joint head junction.
Because the utility model has adopted the spherical tooth type shaft coupling structure, utilize arc tooth on two spheres transfer torque that is meshing with each other, increased stressed contact area, reduced the contact stress of stress surface, corner is little, transfer torque is big, stability is good, guiding flexibly, end cap becomes the spherical inner chamber of good seal with endosphere tooth jackshaft, endosphere toe joint capitiform, realized that hermetically sealed, oil-bath type lubricates high lubricating effect, thereby can effectively prolong application life of universal drive shaft, thereby improve the complete machine application life of helicoid hydraulic motor.The utility model is simple and compact for structure, and low cost of manufacture is applied widely.
Description of drawings
Fig. 1 is vertical half sectional view of the present utility model, shows its overall structure;
Fig. 2 is vertical half sectional view of another embodiment of the utility model;
Fig. 3 is vertical half sectional view of the another embodiment of the utility model;
Fig. 4 is the longitudinal sectional view of ectosphere tooth coupling spindle;
Fig. 5 is the sectional view of bulb lid;
Fig. 6 is the longitudinal sectional view of endosphere tooth jackshaft.
The specific embodiment
Embodiment illustrated in fig. 11, the utility model comprises the male joint 1 that is connected with the screw drilling tool motor rotor, endosphere tooth jackshaft 4 and the endosphere toe joint head 8 that is connected with screw drill transmission shaft, be connected by the spherical tooth type universal joint respectively between endosphere tooth jackshaft 4 and male joint 1 and the endosphere toe joint head 8, said spherical tooth type universal joint comprises the ectosphere tooth coupling spindle 2 of fixedlying connected with male joint 1 or endosphere tooth jackshaft 4 by screw thread, the end of ectosphere tooth coupling spindle 2 is the ball-joint of spherical shape, the rear portion of ball-joint is a smooth sphere, is evenly distributed with many outer arcuate teeth 21 on the preceding hemisphere face of ball-joint.End face at endosphere tooth jackshaft 4 and endosphere toe joint head 8 is processed with spherical groove 41, be processed with the arc tooth 42 that is meshed with outer arcuate tooth 21 on the above-mentioned ball-joint in the spherical groove 41, be welded with bulb lid 3 in the end of endosphere tooth jackshaft 4 and endosphere toe joint head 8, bulb lid 3 has the spherical groove 31 that the ball-joint rear portion sphere with ectosphere tooth coupling spindle 2 ends adapts, and ball-joint is movably arranged in the spherical groove 41 formed spherical inner chambers on bulb lid 3 and endosphere tooth jackshaft 4 or the endosphere toe joint head 8 by bulb lid 3.Form the full spherical of a profile institute envelope after outer arcuate tooth 21 and 42 engagements of arc tooth, ball-joint overlaps with the center of spherical groove 41.The backlash of outer arcuate tooth 21 and arc tooth 42 is made according to the requirement of corner.Be processed with little spherical groove 22 at the ball-joint top of ectosphere tooth coupling spindle 2, bottom at the spherical groove 41 of endosphere tooth jackshaft 4 and endosphere toe joint head 8 also is processed with little spherical groove 43 respectively, in the cavity that above-mentioned bead face groove forms locking ball 5 is installed.The center of circle of locking ball 5 is positioned on the tangent AnchorPoint of outer arcuate tooth 21 and arc tooth 42 greatest circles, therefore outer arcuate tooth 21 and leave the gap that adapts to corner cooperating of locking ball 5 is formed with the angular transition of control when ectosphere tooth coupling spindle 2 passes to endosphere tooth jackshaft 4 or endosphere toe joint head 8 to out-of-alignment power.The effect of locking ball 5 is deflection angles that the corner of control ectosphere tooth coupling spindle 2 meets rotor, and the while is the pressure of support rotor again.On endosphere tooth jackshaft 4 and endosphere toe joint head 8, be processed with the oil filler point 7 that communicates with spherical groove 41, on the smooth sphere of ball-joint rear portion, be processed with cannelure, O type rubber seal 6 is housed in the cannelure, form seal lubrication.
Embodiment illustrated in fig. 22 only are that with the difference of embodiment 1 its lubrication and seal mode is in the circular hole of bulb lid 3 outside framework oil seal 9 to be housed.
Embodiment illustrated in fig. 33 is to have the oil filler point 10 that leads to its end face in endosphere tooth jackshaft 4 and male joint 1, be coated with elastic corrugated sheath 11 by welding manner at male joint 1 and endosphere tooth jackshaft 4 and endosphere tooth jackshaft 4 respectively with endosphere toe joint head 8 junctions, so that universal joint is formed lubrication and seal.
This spherical tooth type universal axle upper end connects motor rotor during use, the lower end connects power transmission shaft, just the disalignment of motor rotor is changed into the coaxial rotation of power transmission shaft.
Claims (6)
1, a kind of dental formula versatile spindle of positive displacement drill ball, comprise male joint (1), endosphere tooth jackshaft (4) and endosphere toe joint head (8), it is characterized in that: be connected by the spherical tooth type universal joint respectively between endosphere tooth jackshaft (4) and male joint (1) and the endosphere toe joint head (8), said spherical tooth type universal joint comprises the ectosphere tooth coupling spindle (2) that is connected with male joint (1) or endosphere tooth jackshaft (4), the end of ectosphere tooth coupling spindle (2) is the spherical shape ball-joint, on the preceding hemisphere face of ball-joint, be evenly distributed with many outer arcuate teeth (21), end face at endosphere tooth jackshaft (4) and endosphere toe joint head (8) is processed with spherical groove (41), be processed with the arc tooth (42) that is meshed with outer arcuate tooth (21) on the above-mentioned ball-joint in the spherical groove (41), be fixed with bulb lid (3) in the end of endosphere tooth jackshaft (4) and endosphere toe joint head (8), bulb lid (3) has the spherical groove (31) that the ball-joint rear portion sphere with ectosphere tooth coupling spindle (2) end adapts, and ball-joint is movably arranged in the spherical inner chamber of spherical groove (41) formation on bulb lid (3) and endosphere tooth jackshaft (4) or the endosphere toe joint head (8).
2, dental formula versatile spindle of positive displacement drill ball according to claim 1, it is characterized in that being processed with little spherical groove (22) at the ball-joint top of ectosphere tooth coupling spindle (2), bottom at the spherical groove (41) of endosphere tooth jackshaft (4) and endosphere toe joint head (8) also is processed with little spherical groove (43) respectively, in the cavity that above-mentioned little spherical groove (22) (43) forms locking ball (5) is installed.
3, dental formula versatile spindle of positive displacement drill ball according to claim 1 and 2 is characterized in that being processed with the oil filler point (7) that communicates with spherical groove (41) on endosphere tooth jackshaft (4) and endosphere toe joint head (8).
4, dental formula versatile spindle of positive displacement drill ball according to claim 3 is characterized in that being processed with cannelure on the sphere of ball-joint rear portion, and sealing ring (6) is housed in the cannelure.
5, dental formula versatile spindle of positive displacement drill ball according to claim 3 is characterized in that in the circular hole of bulb lid (3) sealing ring (9) being housed.
6, dental formula versatile spindle of positive displacement drill ball according to claim 1 and 2, it is characterized in that in endosphere tooth jackshaft (4) and male joint (1), having the oil filler point (10) that leads to its end face, coat elastic corrugated sheath (11) respectively with endosphere toe joint head (8) junction at male joint (1) and endosphere tooth jackshaft (4) and endosphere tooth jackshaft (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201576983U CN201110135Y (en) | 2007-11-23 | 2007-11-23 | Ball dental type versatile spindle for screw drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201576983U CN201110135Y (en) | 2007-11-23 | 2007-11-23 | Ball dental type versatile spindle for screw drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201110135Y true CN201110135Y (en) | 2008-09-03 |
Family
ID=39894665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201576983U Expired - Fee Related CN201110135Y (en) | 2007-11-23 | 2007-11-23 | Ball dental type versatile spindle for screw drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201110135Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103444375A (en) * | 2013-09-23 | 2013-12-18 | 赵松辰 | Rocking head of thresher of corn harvester |
| CN103775001A (en) * | 2012-10-18 | 2014-05-07 | 中国石油化工股份有限公司 | Flexible drilling rod for radial horizontal well drilling |
-
2007
- 2007-11-23 CN CNU2007201576983U patent/CN201110135Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775001A (en) * | 2012-10-18 | 2014-05-07 | 中国石油化工股份有限公司 | Flexible drilling rod for radial horizontal well drilling |
| CN103444375A (en) * | 2013-09-23 | 2013-12-18 | 赵松辰 | Rocking head of thresher of corn harvester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080903 Termination date: 20161123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |