CN201306129Y - Universal coupling for screw rod drilling tool - Google Patents
Universal coupling for screw rod drilling tool Download PDFInfo
- Publication number
- CN201306129Y CN201306129Y CNU2008202269347U CN200820226934U CN201306129Y CN 201306129 Y CN201306129 Y CN 201306129Y CN U2008202269347 U CNU2008202269347 U CN U2008202269347U CN 200820226934 U CN200820226934 U CN 200820226934U CN 201306129 Y CN201306129 Y CN 201306129Y
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- curved surface
- head
- joint
- introversion
- gear
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Abstract
The utility model discloses a universal coupling for a screw rod drilling tool, which comprises an upper joint, a lower joint and a middle joint, wherein one end of the middle joint is connected with an inner curve-lined joint; outer curve-lined gears are respectively arranged between the upper joint and the inner curve-lined joint and between the middle joint and the lower joint; the outer curve-lined gears comprise gear shafts and ball joints; the outer surfaces of the ball joints are provided with a plurality of outer raised curve-lined teeth; one end of the inner curve-lined joint is provided with cured grooves; and inner curve-lined teeth engaged with the outer curve-lined teeth are processed in the curved grooves. The torque is transmitted through the engagement of the outer raised curve-lined teeth on the outer curve-lined gears and the inner curve-lined teeth in the cured grooves, the force contact area is increased, the contact stress of the stress surface is reduced, the transmission torque is large, no dead point of the universal coupling at any turning point in 360 degrees is left, and the working requirements of the drilling tool are met.
Description
Technical field
The utility model relates to the mechanical screws drilling tool in a kind of oil drilling or the workover treatment, particularly a kind of helicoid hydraulic motor Hooks coupling universal coupling.
Background technology
The machinery that surges the most frequently used in oil exploitation and workover treatment is helicoid hydraulic motor, it is by by-pass valve assembly, motor assembly, universal drive shaft assembly and driving-shaft assembly 4 parts are formed, wherein universal drive shaft is the centering rotation that the planetary motion of motor rotor is delivered to driven shaft, power transmission shaft drives drill bit work, because of working environment more abominable, the output torque of helicoid hydraulic motor reaches ten thousand N/ rice, therefore universal drive shaft is the decision helicoid hydraulic motor key in application life, the structure of the universal drive shaft that uses mostly is the plum petal type at present, its shortcoming is that the plum blossom lobe is exposed to the outside, there is not lubrication system, during use because the erosion of mud, cause its rotation dumb, and corner has the dead point, can not realize any rotations of universal drive shaft at 360 degree, and the gap that 2～2.5mm is arranged between lobe and the lobe, cause transmission not steady, vibration is big, has influenced the application life and the operating efficiency of a whole set of drilling tool, and be about 120～200 hours its application life.
Summary of the invention
Technical problem to be solved in the utility model is the deficiency that overcomes in the above-mentioned technology, provide that a kind of greasy property is good, stable drive, corner flexibly, the Hooks coupling universal coupling of long service life.
For addressing the above problem, the utility model by the following technical solutions:
A kind of helicoid hydraulic motor Hooks coupling universal coupling, comprise top connection, lower contact and middle coupling head, one end of middle coupling head is connected with introversion toe joint head, between described top connection and the introversion toe joint head, be respectively equipped with the outcurve gear between middle coupling head and the lower contact, described outcurve gear comprises gear shaft and ball-joint, and the external surface of described ball-joint is provided with some the curved teeth of evagination;
One end of described introversion toe joint head is provided with the curved surface groove, is processed with the curved tooth of indent that is meshed with the curved tooth of evagination in the described curved surface groove;
One end of lower contact is provided with the curved surface groove, is processed with the curved tooth of indent that is meshed with the curved tooth of evagination in the described curved surface groove.
This back lash all is to be provided with according to the planetary motion principle of the eccentric throw of rotor and rotor, has guaranteed that universal drive shaft does not have the job requirement that drilling tool is satisfied at the dead angle in any flex point of degree.
Below be the utility model for further improvement of these options:
The curved tooth of described evagination is arranged on the ball-joint outer end greater than on 1/2 the curved surface.
One end of the nearly outcurve gear of described introversion toe joint head rest, lower contact are connected with the curved surface cap respectively near an end of outcurve gear, the inner chamber of curved surface cap is and the corresponding curved surface groove of ball-joint rear portion curved surface, and the curved Qu Jie of circle is movably arranged on respectively in the curved surface shaped inner chamber that curved surface cap and introversion toe joint head and lower contact form respectively by the curved surface cap.
Be provided with the rubber cushion groove that is used for installing rubber cushion from outside to inside according to this, the pressing plate groove of pressing plate is installed and is used for installing the seal groove of O type circle away from an end of curved surface groove on the described curved surface cap, described rubber cushion, pressing plate and O type circle are set in the outside of gear shaft.
Described top connection and middle coupling head are separately installed with sheath near an end of rubber cushion, are provided with the bellmouth that holds rubber cushion in the described sheath.
Be respectively equipped with oil storage chamber in described top connection, the middle coupling head, be respectively equipped with the axially extending bore that interconnects in described outcurve gear, curved surface cap and the introversion toe joint head, described axially extending bore is communicated with oil storage chamber, is respectively equipped with the oil filler point that is communicated with oil storage chamber and axially extending bore on described top connection, middle coupling head and the introversion toe joint head.
Be respectively equipped with oil storage chamber in described lower contact and the middle coupling head, be respectively equipped with the axially extending bore that interconnects in described outcurve gear, curved surface cap and the introversion toe joint head, described axially extending bore is communicated with oil storage chamber, is respectively equipped with in described lower contact and the middle coupling head and annotates the oil filler point that oil storage chamber is communicated with.
The utility model adopts above technical scheme, utilize the curved tooth of indent in curved tooth of evagination on the outcurve gear and the curved surface groove transfer torque that is meshing with each other, increased stressed contact area, reduced the contact stress of stress surface, transfer torque is big, guaranteed that universal drive shaft does not have the job requirement that drilling tool is satisfied at the dead angle in any flex point of 360 degree, stability is good, goes slick; Bent head cap and middle coupling spindle form the curved inner chamber of good seal, and be provided with oil storage chamber, high lubricating effect, long service life has solved the insurmountable lubricated difficult problem of other universal drive shaft, between outcurve gear and the top connection, with middle coupling head between by being threaded, easy accessibility is safeguarded debugging easily, and the utility model is simple and compact for structure, low cost of manufacture, applied widely.
Below in conjunction with drawings and Examples the utility model is further described:
Description of drawings
Accompanying drawing 1 is the structural representation of Hooks coupling universal coupling among the utility model embodiment;
Accompanying drawing 2 is a top connection structural representation among the utility model embodiment;
Accompanying drawing 3 is the structural representation of outcurve gear among the utility model embodiment;
Accompanying drawing 4 is the structural representation of sheath among the utility model embodiment;
Accompanying drawing 5 is the structural representation of bent head cap among the utility model embodiment;
Accompanying drawing 6 is the structural representation of introversion toe joint head among the utility model embodiment;
Accompanying drawing 7 is the structural representation of middle coupling head among the utility model embodiment;
Accompanying drawing 8 is the structural representation of lower contact among the utility model embodiment.
Among the figure: the 1-top connection; 2-outcurve gear; The 3-sheath; 4-introversion toe joint head; Coupling head among the 5-; The 6-rubber cushion; The 7-pressing plate; 8-O type circle; The 9-lower contact; The bent head cap of 10-; 11,43,54-screw; 12,44,55,56,93-oil filler point; 13,52,53,92-oil storage chamber; 14,41,105-axially extending bore; The 21-gear shaft; The curved tooth of 22-evagination; The 23-ball-joint; The 31-through hole; The 32-bellmouth; 42, the curved tooth of 94-indent; 45,91,101-curved surface groove; 51-spiral shell head; The 102-seal groove; 103-pressing plate groove; 104-rubber cushion groove.
The specific embodiment
Embodiment, as shown in Figure 1, a kind of Hooks coupling universal coupling, comprise top connection 1, lower contact 9 and middle coupling head 5, one end of middle coupling head 5 is connected with introversion toe joint head 4, between described top connection 1 and the introversion toe joint head 4, be respectively equipped with outcurve gear 2 between middle coupling head 5 and the lower contact 9, described introversion toe joint head 4 is connected with curved surface cap 10 near an end of outcurve gear 2, lower contact 9 also is connected with curved surface cap 10 near an end of outcurve gear 2, the outer cover of described outcurve gear 2 is equipped with rubber cushion 6, pressing plate 7 and O type circle 8, described top connection 1 and middle coupling head 5 are separately installed with sheath 3 near an end of rubber cushion 6.
As shown in Figure 2, the oil filler point 12 that is provided with oil storage chamber 13 in the top connection 1 and is communicated with oil storage chamber 13, an end of top connection 1 is provided with the screw 11 that is connected with outcurve gear 2.
As shown in Figure 3, described outcurve gear 2 comprises gear shaft 21 and ball-joint 23, the external surface of described ball-joint 23 is provided with some the curved teeth 22 of evagination, the curved tooth 22 of described evagination is arranged on ball-joint 23 outer ends greater than on 1/2 the curved surface, described gear shaft 21 is provided with screw thread, and the inside of outcurve gear 2 is provided with axially extending bore 14.
As shown in Figure 4, be provided with the bellmouth 32 that holds rubber cushion 6 in the described sheath 3, be provided with the through hole 31 of pegging graft in the described sheath 3 with top connection 1 and middle coupling head 5.
As shown in Figure 5, be provided with axially extending bore 105 in the curved surface cap 10, the inner chamber of curved surface cap 10 1 ends is and the corresponding curved surface groove 101 of ball-joint 23 rear portion curved surfaces, ball-joint 23 is movably arranged on respectively in the curved inner chamber that curved surface cap 10 and introversion toe joint head 4 and lower contact 9 form respectively by curved surface cap 10, is provided with the pressing plate groove 103 of the rubber cushion groove 104 that is used for installing rubber cushion 6, installation pressing plate 7 from outside to inside according to this away from an end of curved surface groove 101 on the described curved surface cap 10 and is used for installing the seal groove 102 of O type circle 8.
As shown in Figure 6, one end of described introversion toe joint head 4 is provided with curved surface groove 45, be processed with the curved tooth 42 of indent that is meshed with the curved tooth 22 of evagination in the described curved surface groove 45, the other end of described introversion toe joint head 4 is provided with the screw 43 that is connected with middle coupling head 5, be provided with axially extending bore 41 in introversion toe joint head 4, introversion toe joint head 4 is provided with the oil filler point 44 that is communicated with axially extending bore 41.
As shown in Figure 7, one end of middle coupling head 5 is provided with the spiral shell head 51 that is connected with introversion toe joint head 4, the other end is provided with the screw 54 that is connected with gear shaft 21, the two ends of middle coupling head 5 are respectively equipped with oil storage chamber 53 and oil storage chamber 52, and middle coupling head 5 is provided with oil filler point 55 that is communicated with oil storage chamber 53 and the oil filler point 56 that is communicated with oil storage chamber 52.
As shown in Figure 8, one end of lower contact 9 is provided with curved surface groove 91, be processed with the curved tooth 94 of indent that is meshed with the curved tooth 22 of evagination in the described curved surface groove 91, be provided with oil storage chamber 92 in the described lower contact 9, lower contact 9 is provided with the oil filler point 93 that is communicated with oil storage chamber 92.
The utility model utilizes the transfer torque that is meshing with each other of the curved tooth of indent in the curved tooth of the evagination on the outcurve gear and the curved surface groove, increased stressed contact area, reduced the contact stress of stress surface, transfer torque is big, guaranteed that universal drive shaft does not have the job requirement that drilling tool is satisfied at the dead angle in any flex point of 360 degree, stability is good, goes slick; Curved surface cap and middle coupling spindle form the curved inner chamber of good seal, and be provided with oil storage chamber, high lubricating effect, long service life has solved the insurmountable lubricated difficult problem of other universal drive shaft, between outcurve gear and the top connection, with middle coupling head between by being threaded, easy accessibility is safeguarded debugging easily, and the utility model is simple and compact for structure, low cost of manufacture, applied widely.
Claims (7)
1, a kind of helicoid hydraulic motor Hooks coupling universal coupling comprises top connection (1), lower contact (9) and middle coupling head (5), it is characterized in that:
One end of middle coupling head (5) is connected with introversion toe joint head (4), between described top connection (1) and the introversion toe joint head (4), be respectively equipped with outcurve gear (2) between middle coupling head (5) and the lower contact (9), described outcurve gear (2) comprises gear shaft (21) and ball-joint (23), and the external surface of described ball-joint (23) is provided with some the curved teeth of evagination (22);
One end of described introversion toe joint head (4) is provided with curved surface groove (45), is processed with the curved tooth of indent (42) that is meshed with the curved tooth of evagination (22) in the described curved surface groove (45);
One end of lower contact (9) is provided with curved surface groove (91), is processed with the curved tooth of indent (94) that is meshed with the curved tooth of evagination (22) in the described curved surface groove (91).
2, a kind of helicoid hydraulic motor Hooks coupling universal coupling according to claim 1 is characterized in that: the curved tooth of described evagination (22) is arranged on ball-joint (23) outer end greater than on 1/2 the curved surface.
3, a kind of helicoid hydraulic motor Hooks coupling universal coupling according to claim 1 and 2, it is characterized in that: described introversion toe joint head (4) is connected with curved surface cap (10) near an end, the lower contact (9) of outcurve gear (2) respectively near an end of outcurve gear (2), the inner chamber of curved surface cap (10) is and ball-joint (23) the rear portion corresponding curved surface groove of curved surface (101), and ball-joint (23) is movably arranged on respectively in the curved surface shaped inner chamber that curved surface cap (10) and introversion toe joint head (4) and lower contact (9) form respectively by curved surface cap (10).
4, a kind of helicoid hydraulic motor Hooks coupling universal coupling according to claim 3, it is characterized in that: described curved surface cap (10) is gone up a end away from curved surface groove (101) and is provided with the rubber cushion groove (104) that is used for installing rubber cushion (6) from outside to inside according to this, the pressing plate groove (103) of pressing plate (7) is installed and is used for installing the seal groove (102) of O type circle (8), and described rubber cushion (6), pressing plate (7) and O type circle (8) are set in the outside of gear shaft (21).
5, a kind of helicoid hydraulic motor Hooks coupling universal coupling according to claim 4, it is characterized in that: described top connection (1) and middle coupling head (5) are separately installed with sheath (3) near an end of rubber cushion (6), are provided with in the described sheath (3) and hold rubber cushion (6) bellmouth (32).
6, a kind of helicoid hydraulic motor Hooks coupling universal coupling according to claim 5, it is characterized in that: described top connection (1), be respectively equipped with oil storage chamber (13 in the middle coupling head (5), 53), described outcurve gear (2), be respectively equipped with the axially extending bore (14 that interconnects in curved surface cap (10) and the introversion toe joint head (4), 105,41), described axially extending bore (14,105,41) with oil storage chamber (13,53) be communicated with described top connection (1), be respectively equipped with and oil storage chamber (13 on middle coupling head (5) and the introversion toe joint head (4), 53) and the oil filler point (12 that is communicated with of axially extending bore (41), 55,44).
7, a kind of helicoid hydraulic motor Hooks coupling universal coupling according to claim 6, it is characterized in that: be respectively equipped with oil storage chamber (92,52) in described lower contact (9) and the middle coupling head (5), be respectively equipped with the axially extending bore (14,105,41) that interconnects in described outcurve gear (2), curved surface cap (10) and the introversion toe joint head (4), described axially extending bore (14,105,41) is communicated with oil storage chamber (92,52), is respectively equipped with in described lower contact (9) and the middle coupling head (5) and annotates the oil filler point (93,56) that oil storage chamber (92,52) is communicated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202269347U CN201306129Y (en) | 2008-12-15 | 2008-12-15 | Universal coupling for screw rod drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202269347U CN201306129Y (en) | 2008-12-15 | 2008-12-15 | Universal coupling for screw rod drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306129Y true CN201306129Y (en) | 2009-09-09 |
Family
ID=41098596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202269347U Expired - Fee Related CN201306129Y (en) | 2008-12-15 | 2008-12-15 | Universal coupling for screw rod drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201306129Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128213A (en) * | 2011-02-24 | 2011-07-20 | 哈尔滨工业大学 | Belt transmission cross full shaft type two-degree-of-freedom universal joint mechanism |
-
2008
- 2008-12-15 CN CNU2008202269347U patent/CN201306129Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128213A (en) * | 2011-02-24 | 2011-07-20 | 哈尔滨工业大学 | Belt transmission cross full shaft type two-degree-of-freedom universal joint mechanism |
| CN102128213B (en) * | 2011-02-24 | 2012-06-06 | 哈尔滨工业大学 | Belt transmission cross full shaft type two-degree-of-freedom universal joint mechanism |
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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: WEIFANG LUTAI MACHINERY CO., LTD. Free format text: FORMER OWNER: GUO TAILI Effective date: 20101223 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 262113 WEIFANG LUTAI MACHINERY CO., LTD., TOWN GOVERNMENT PLACE, NANLIU TOWN, FANGZI DISTRICT, WEIFANG CITY, SHANDONG PROVINCE TO: 262113 TOWN GOVERNMENT PLACE, NANLIU TOWN, FANGZI DISTRICT, WEIFANG CITY, SHANDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101223 Address after: 262113, Shandong, Weifang Fangzi district town government resident Patentee after: WEIKFANG LUTAI MACHINERY CO., LTD. Address before: 262113, Fangzi District, Shandong City, Weifang Province town government resident Weifang Lu Tai Machinery Co., Ltd. Patentee before: Guo Taili |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20161215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |