CN201496010U - Power slip - Google Patents
Power slip Download PDFInfo
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- CN201496010U CN201496010U CN200920302420XU CN200920302420U CN201496010U CN 201496010 U CN201496010 U CN 201496010U CN 200920302420X U CN200920302420X U CN 200920302420XU CN 200920302420 U CN200920302420 U CN 200920302420U CN 201496010 U CN201496010 U CN 201496010U
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- slips
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Abstract
The utility model discloses a power slip capable of leading a slip group to move more flexibly and smoothly. The power slip comprises a base, a crankshaft and the slip group, wherein the crank shaft is hinged on the base, the slip group is connected with the crank shaft, a power cylinder drives the crankshaft to rotate around a hinge point so as to drive the slip group to move up and down, the base is arranged on a rotary table plane through a connecting device, the crankshaft is movably connected with the slip group through a connecting rod, and two ends of the connecting rod are respectively connected with the crankshaft and the slip group. The slip group is movably connected with the crankshaft through the connecting rod, and two ends of the connecting rod are hinged with the slip group and the crankshaft, thereby increasing flexibility of the slip group. The power slip can realize automatic correction of moving traces of the slip group when the crankshaft rotates and then lead the slip group to move according to designed moving traces, thereby leading the slip group to move up and down more smoothly.
Description
Technical field
Remove the power locking device of drilling rod operation when the utility model relates to drilling well, be applicable to oil or the wellbore construction operation that carry out in the field of geological drilling engineering.
Background technology
Slips is to be used for blocking and hanging the instrument of holding the well drill string on field of oil drilling.Round trip at present mainly uses two elevator switchover modes or single elevator to cooperate portable slips operation.But " single-ring " easily takes place two elevator switchover modes falls drilling tool, falls the sleeve pipe accident; And portable slips operation exists problems such as labour intensity is big, inefficiency, poor safety performance.
In order to address the above problem, in the design of oil drilling locking drilling rod, power slip is the direction of first developing at present.Power slip mainly is to utilize compressed air or hydraulic system to realize slips group automatic lifting as power by cylinder or oil cylinder piston action, and has the function that holds drilling rod or sleeve pipe.
Chinese patent CN92200900.7 discloses a kind of " oil pipe pneumatic chucking device ", its structure comprises base, be hinged on crank on the base and the slips group hinged with crank, power cylinder driving crank rotates to drive the slips group around hinge and moves up and down, described base is installed on the turntable plane by linkage, is provided with the inner conical surface that is used to make the obvolvent of slips group on base.Wherein, an end and the base of crank are hinged, and the other end and slips group are hinged, and the piston rod on the power cylinder is hinged on the middle part of crank, make crank form the lever construction that a fulcrum is positioned at the end.When the piston of power cylinder stretched out, the slips group was unclamped like this, and when piston rod reclaimed, the slips group was held tightly.The slips group is made up of three independent slips bodies, the both sides of slips body in the middle of two side slips bodies are hinged on by rotational pin respectively, when linkage lever mechanism driving slips group moves downward, two side slips bodies in the slips group are subjected to the active force of base inner conical surface and the untie-sell that rotates rotates, to reach the purpose of obvolvent drilling rod.
1), slips group motion is dumb, so that the slips group is smooth and easy inadequately when entering the base inner conical surface major defect of above-mentioned this " oil pipe pneumatic chucking device " is:.2), the unreasonable structure of linkage lever mechanism: when the piston of power cylinder stretched out, the slips group was unclamped, and when piston rod reclaimed, the slips group was held tightly, and the active force of its power cylinder uses not science.3), the slips base is provided with the inner conical surface that is used to make the obvolvent of slips group, so the work of slips group obvolvent drilling rod carries out above the turntable plane substantially, it is more to make the working depth of power slip exceed the rig floor face.
The utility model content
Technical problem to be solved in the utility model is: for solving in the above-mentioned gripping mechanism slips group inflexible shortcoming of moving, the application provides a kind of motion that makes slips group power slip smoothly more flexibly.
The technical scheme that its technical problem that solves the utility model adopts is:
Power slip, the slips group that comprises base, is hinged on the crank on the base and is connected with crank, power cylinder driving crank rotates to drive the slips group around hinge and moves up and down, described base is installed on the turntable plane by linkage, flexibly connect by connecting rod between described crank and the slips group, the two ends of described connecting rod are hinged with crank and slips group respectively.Owing to flexibly connect by connecting rod between slips group and the crank, the two ends of connecting rod and slips group and crank are hinged, therefore increased the flexibility of slips group, in the time of can being implemented in the crank rotation, the automatic correction of slips group movement locus, make it according to the work of design movement locus, thereby make moving up and down of slips group more smooth and easy.
For the active force that makes power cylinder uses more science, the piston rod on described crank and the power cylinder is hinged, and the hinge of crank and base is between the hinge of crank and piston rod and connecting rod.Its course of work is: the piston rod throw crank of power cylinder turns clockwise, and moves downward thereby drive the slips group; During the piston rod counter motion, the pulling crank is contrary to be rotated counterclockwise, and moves upward thereby drive the slips group.This motion mode is succinct, rationally, under the motion of power cylinder piston, can realize easily that the slips group holds or unclamp the purpose of drilling rod tightly.
For the obvolvent operation that makes the slips group is carried out below the turntable plane, to simplify the structure of base, reduce the working depth of power slip, described base is fixed on the quadrel, and base is provided with the guiding swash plate that is used in the slips group importing quadrel taper hole.Itself have the quadrel taper hole on the quadrel, its effect is when the slips group moves downward, and makes the inside obvolvent bull stick of slips group by taper hole and contacting of slips group.Base is installed on the quadrel, therefore in the base need not be provided with the slips group in two corresponding inner conical surfaces of side slips body, the structure of base is greatly simplified, and the work of slips group obvolvent drilling rod is positioned at the below on turntable plane, reduced the working depth of power slip.
Firm base being installed on the turntable plane for convenience,, prevent the power slip axial play, described linkage comprises the eccentric bushing that is axially fixed on the base, the lower end of described eccentric bushing is passed base and is stretched in the location and installation hole on the turntable plane, and described location and installation hole is the stepped hole of lower end diameter greater than upper end diameter; Be set with eccentric shaft in eccentric bushing, the lower end of described eccentric shaft is the ledge structure that stretches out eccentric bushing, and when eccentric bushing and eccentric shaft relatively rotated, the external cylindrical surface that the ledge structure of eccentric shaft lower end protrudes eccentric bushing contacted with the step surface in location and installation hole.
The beneficial effects of the utility model are: this power slip has adopted crank-link mechanism to drive the slips group and has moved up and down, it is simple in structure, succinct, the science of mechanism kinematic mode under the motion of power cylinder piston, can realize easily that the slips group holds or unclamp the purpose of drilling rod tightly.
Description of drawings
Fig. 1 is the structural representation of the application's power slip.
Fig. 2 is the installation and the user mode figure of the application's power slip.
The structural representation of slips group in Fig. 3～Fig. 5 the application power slip.
Fig. 6 is the partial schematic diagram of crank-link mechanism in the application's power slip.
Fig. 7 is the vertical view of base in the application's power slip.
Fig. 8 is the left view of Fig. 7.
Fig. 9 is the structural representation of linkage in the application's power slip.
Component among the figure, position and numbering: connecting rod 1, back-moving spring 2, back-moving spring steady pin 3, rotational support pin 4, gripper shoe 5, hanger 6, piston rod top connecting pin 7, piston rod 8, power cylinder 9, escape pipe 10, air inlet pipe 11, base 12, location key seat 13, supporting seat 14, guiding swash plate 15, eccentric shaft 16, slip insert dismounting hole 17, slips alveolus 18, slip insert 19, torsion spring 20, the slips body ships and resell on another market 21, slip insert pressing plate 22, middle slips body 23, side slips body 24, the slips body connects boatswain chair 25, ejector pin 26, middle slips body fixing swing pin 27, side slips body spring hangers 28, lock pin 29, eccentric bushing 30, adjust pad 31, locking nut 32, alignment pin 33, slips group 34, turntable plane 35, quadrel 36, quadrel taper hole 37, rotating disk 38.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described further.
The utility model is a kind of at the employed power slip that is used for the drilling rod chucking of oil drilling time spent.The slips group 34 that this power slip comprises base 12, is hinged on the crank 1 on the base 12 and is connected with crank 1, power cylinder 9 driving cranks 1 rotate to drive slips group 34 around hinge and move up and down, described base 12 is installed on the turntable plane 35 by linkage, flexibly connect by connecting rod 25 between crank 1 and the slips group 34, the two ends of described connecting rod 25 are hinged on respectively on crank 1 and the slips group 34.Owing to flexibly connect by connecting rod 25 between slips group 34 and the crank 1, the two ends of connecting rod 25 are hinged with slips group 34 and crank 1 respectively, therefore increased the flexibility of slips group 34, in the time of can being implemented in crank 1 rotation, the automatic correction of slips group 34 movement locus, make it according to the work of design movement locus, thereby make moving up and down of slips group 34 more smooth and easy.
For the active force that makes power cylinder 9 uses more science, described crank 1 is hinged with the piston rod 8 on the power cylinder 9, and the hinge of crank 1 and base 12 is between the hinge of crank 1 and piston rod 8 and connecting rod 25.Its course of work is: piston rod 8 throw cranks 1 of power cylinder 9 turn clockwise, and move downward thereby drive slips group 34; During piston rod 8 counter motions, pulling crank 1 contrary being rotated counterclockwise moves upward thereby drive slips group 34.This motion mode is succinct, rationally, under the motion of power cylinder piston, can realize easily that slips group 34 holds or unclamp the purpose of drilling rod tightly.Wherein, described power cylinder 9 is movably connected on the base 12, thereby when piston rod 8 motions, power cylinder 9 can be adjusted attitude accordingly.
For the obvolvent operation that makes slips group 34 is carried out below turntable plane 35, to simplify the structure of base 12, reduce the working depth of power slip, described base 12 is fixed on the quadrel 36, and base 12 is provided with the guiding swash plate 15 that is used in the slips group 34 importing quadrel taper holes 37.Itself have quadrel taper hole 37 on the quadrel 36, its effect is when slips group 34 moves downward, and makes the inside obvolvent bull stick of slips group by taper hole and contacting of slips group.Base 12 is installed on the quadrel 37, therefore in the base 12 need not be provided with slips group 34 in two corresponding inner conical surfaces of side slips body, the structure of base 12 is greatly simplified, and the work of slips group 34 obvolvent drilling rods is positioned at the below on turntable plane 35, reduced the working depth of power slip.Wherein, quadrel 36 is installed in the rotating disk 38 center square holes, thus can be between rotating disk 38 and quadrel 36 transfer torque.
Embodiment
Power slip, the main parts size that its base portion comprises has: gripper shoe 5, hanger 6, base 12, supporting seat 14, guiding swash plate 15, eccentric shaft 16, lock pin 29, eccentric bushing 30, adjustment pad 31, locking nut 32, alignment pin 33.Described base 12 is a platy structure, has the resigning hole that quadrel taper hole 37 is exposed fully on its plate body, and described guiding swash plate 15 is arranged on the periphery of resigning hole.This resigning hole is a semicircle hatch frame that is positioned at base 12 front portions, so that the operator can be installed in power slip on the quadrel 36 from drilling rod one side under the situation of not mentioning drilling rod.Guiding swash plate 15 is used for its support on 34 of slips groups the time, when putting down, is the spigot surface of slips group 34, and it can be entered in the quadrel 36 smoothly.Eccentric shaft 16 and eccentric bushing 30 are an eccentric structure, use lock pin 29 that these two parts are located in the axial direction, and when rotation eccentric axis 16, the ledge structure of its bottom produces the external cylindrical surface of eccentric bushing 30.When air operated slips is installed, the lower end of eccentric bushing 30 is passed base 12 and is stretched in the location and installation hole on the turntable plane 35, described location and installation hole is the stepped hole of lower end diameter greater than upper end diameter, rotation eccentric axis 16, a spacing cross-drilled hole is arranged thereon, when spacing cross-drilled hole turns to the spacing cross-drilled hole of eccentric bushing 30 when coaxial, insert alignment pin 33, at this moment, the bottom stage structure of eccentric shaft 16 produces the external cylindrical surface of eccentric bushing 30 and blocks the step surface in the location and installation hole of quadrel 36, make whole air operated slips realize that its locating pneumatic slips just is fastened on the quadrel 36 fully in axially-movable.Consider that the employed quadrel 36 of rig may not be same manufacturer, its installing hole size in the axial direction can be different, design has the pad 31 of adjustment between eccentric bushing 30 is with the bottom mounting plane of base 12, can adjust the axial outreach of eccentric bushing 30 as required.Eccentric bushing 30 uses locking nut 32 to be locked on the base 12 convenient for maintaining.Gripper shoe 5 is fixed supports of crank 1.Hanger 6 is used to lift air operated slips.
Slips group 34 by back-moving spring 2, slip insert dismounting hole 17, slips alveolus 18, slip insert 19, torsion spring 20, slips body ship and resell on another market 21, slip insert pressing plate 22, middle slips body 23, two side slips bodies 24, middle slips body fixing swing pin 27 and side slips body spring hangers 28 form.Two side slips bodies 24 by the slips body ship and resell on another market 21 and torsion spring 20 couple together, it 21 serves as that axle rotates that side slips body 24 can be shipped and resell on another market with the slips body, under the effect that crank 1 clockwise rotates, 3 slips bodies move downward along guiding swash plate 15, its bottom is introduced in the quadrel 36, and the conical surface at 3 slips body backs is identical with the inner conical surface tapering of quadrel 36, under the guiding of quadrel 36 inner conical surfaces, 3 slips bodies move downward along quadrel 36 inner conical surfaces, realize the obvolvent of three slips bodies; Under the effect that crank 1 rotates counterclockwise, 3 slips bodies move upward along quadrel 36 inner conical surfaces, between crank 1 and slips group 34, be connected with and be used to order about slips group 34 open back-moving springs 2, under the elastic force acting in conjunction of back-moving spring 2 and torsion spring 20, realize opening of three slips bodies.The slips alveolus 18 in every slips front is a dovetail groove, slips alveolus 18 bottom locks, upper opening, slip insert 19 backs are the dovetail tongue, and the front is an arc, and slip insert 19 is packed into from upper opening in the slips alveolus 18, slip insert is the polylith combination, be convenient to install and change, install slip insert after, seal slips alveolus 18 upper openings with slip insert pressing plate 22.The bottom of slips body is drilled with slip insert dismounting hole 17 over against the position at each dovetail groove middle part, can make the dismounting slip insert more convenient.Two side slips body 24 upper rear have side slips body spring hangers 28, connect back-moving spring 2, and torsion spring 20 is enclosed within slips body 21 outsides of shipping and reselling on another market, and in the middle of two ends are separately fixed at ship and resell on another market on the seat in slips body 23 and side slips body 24 inboards.When two side slips bodies 24 relatively rotated with middle slips body 23, torsion spring 20 produced torsion, on slips rises during operation, the torsion of torsion spring 20 make two side slips bodies 24 relatively in the middle of slips body 23 make backward rotation and open.
The driving mechanism of slips group 34 comprises crank 1, back-moving spring steady pin 3, rotational support pin 4, piston rod top connecting pin 7, piston rod 8, power cylinder 9, escape pipe 10, air inlet pipe 11, location key seat 13, connecting rod 25, ejector pin 26.Power cylinder 9 adopts cylinder.Certainly power cylinder 9 also can adopt hydraulic cylinder.Power cylinder 9 afterbodys flexibly connect with location key seat 13 with shipping and reselling on another market, and are that axle rotates to ship and resell on another market; Piston rod 8 tops connect with crank 1 pipe nipple with piston rod top connecting pin 7, can piston rod top connecting pin 7 be that axle rotates; Middle slips body 23 is connected with crank 1 meropodium by ejector pin 26, middle slips body fixing swing pin 27, connecting rod 25, and crank 1 middle part is connected with gripper shoe 5 on the base by rotational support pin 4, as the fixed support of linkage; Power cylinder 9 is connected with source of the gas by turnover tracheae 10,11, promote piston rod 8 motions under compressed-air actuated effect, making crank 1 serves as that axle rotates with rotational support pin 4, and realization slips body moves downward and enters in the quadrel 36, obvolvent drilling rod or drive slips body move upward gradually, break away from and unclamp drilling rod.Between middle slips body 23 and crank 1, there is the middle slips body fixing swing pin 27 of two degree of freedom to be connected by its two ends with ejector pin 26 with connecting rod 25, when can be implemented in crank 1 rotation, slips body movement locus is the deviation of slips body during correction motion automatically, makes it according to the work of design movement locus.Back-moving spring steady pin 3 is used for fixing back-moving spring 2 one ends on crank 1.
Claims (10)
1. power slip, the slips group (34) that comprises base (12), is hinged on the crank (1) on the base (12) and is connected with crank (1), power cylinder (9) driving crank (1) rotates to drive slips group (34) around hinge and moves up and down, described base (12) is installed on the turntable plane (35) by linkage, it is characterized in that: flexibly connect by connecting rod (25) between crank (1) and the slips group (34), the two ends of described connecting rod (25) are hinged with crank (1) and slips group (34) respectively.
2. power slip as claimed in claim 1 is characterized in that: crank (1) is hinged with the piston rod (8) on the power cylinder (9), and the hinge of crank (1) and base (12) is positioned between the hinge of crank (1) and piston rod (8) and connecting rod (25).
3. power slip as claimed in claim 1 is characterized in that: described power cylinder (9) is movably connected on the base (12).
4. power slip as claimed in claim 1 is characterized in that: described power cylinder (9) adopts cylinder.
5. power slip as claimed in claim 1 is characterized in that: be connected with between described crank (1) and the slips group (34) and be used to order about the open back-moving spring of slips group (34) (2).
6. as claim 1,2,3,4 or 5 described power slips, it is characterized in that: described base (12) is fixed on the quadrel (36), and base (12) is provided with and is used for slips group (34) is imported the interior guiding swash plate (15) of quadrel taper hole (37).
7. power slip as claimed in claim 6 is characterized in that: described base (12) is a platy structure, has the resigning hole that quadrel taper hole (37) is exposed fully on its plate body, and described guiding swash plate (15) is arranged on the periphery of resigning hole.
8. power slip as claimed in claim 7 is characterized in that: also be provided with gripper shoe (5) and supporting seat (14) on the described plate body, described crank (1) is hinged on the gripper shoe (5), and described power cylinder (9) is hinged on the supporting seat (14).
9. as claim 1,2,3,4 or 5 described power slips, it is characterized in that: described linkage comprises the eccentric bushing (30) that is axially fixed on the base (12), the lower end of described eccentric bushing (30) is passed base (12) and is stretched in the location and installation hole on the turntable plane (35), and described location and installation hole is the stepped hole of lower end diameter greater than upper end diameter; In eccentric bushing (30), be set with eccentric shaft (16), the lower end of described eccentric shaft (16) is for stretching out the ledge structure of eccentric bushing (30), eccentric bushing (30) and eccentric shaft (16) are when relatively rotating, and the ledge structure of eccentric shaft (16) lower end protrudes the external cylindrical surface of eccentric bushing (30) and contacts with the step surface in location and installation hole.
10. power slip as claimed in claim 9 is characterized in that: be provided with circumferential positioner between described eccentric bushing (30) and the eccentric shaft (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920302420XU CN201496010U (en) | 2009-04-21 | 2009-04-21 | Power slip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920302420XU CN201496010U (en) | 2009-04-21 | 2009-04-21 | Power slip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201496010U true CN201496010U (en) | 2010-06-02 |
Family
ID=42439218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920302420XU Expired - Fee Related CN201496010U (en) | 2009-04-21 | 2009-04-21 | Power slip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201496010U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182408A (en) * | 2011-05-11 | 2011-09-14 | 抚州市临川白勇海洋工程有限公司 | Power slip capable of realizing on-line quick change of clamp tooth boxes and automatic lubrication |
| CN103924936A (en) * | 2014-05-09 | 2014-07-16 | 四川宏华石油设备有限公司 | Power slip |
| CN104110225A (en) * | 2013-04-16 | 2014-10-22 | 江苏如通石油机械股份有限公司 | Hydraulic drill pipe slips |
| CN105178894A (en) * | 2015-08-25 | 2015-12-23 | 北京天和众邦勘探技术股份有限公司 | Auxiliary drill-rod mounting/demounting device |
| CN108979566A (en) * | 2018-08-21 | 2018-12-11 | 江苏如东联丰石油机械有限公司 | A kind of chuck novel operating handle mechanism |
-
2009
- 2009-04-21 CN CN200920302420XU patent/CN201496010U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182408A (en) * | 2011-05-11 | 2011-09-14 | 抚州市临川白勇海洋工程有限公司 | Power slip capable of realizing on-line quick change of clamp tooth boxes and automatic lubrication |
| CN102182408B (en) * | 2011-05-11 | 2013-10-16 | 杭州欧佩亚海洋工程有限公司 | Power slip capable of realizing on-line quick change of clamp tooth boxes and automatic lubrication |
| CN104110225A (en) * | 2013-04-16 | 2014-10-22 | 江苏如通石油机械股份有限公司 | Hydraulic drill pipe slips |
| CN103924936A (en) * | 2014-05-09 | 2014-07-16 | 四川宏华石油设备有限公司 | Power slip |
| CN103924936B (en) * | 2014-05-09 | 2016-05-11 | 四川宏华石油设备有限公司 | A kind of power slip |
| CN105178894A (en) * | 2015-08-25 | 2015-12-23 | 北京天和众邦勘探技术股份有限公司 | Auxiliary drill-rod mounting/demounting device |
| CN108979566A (en) * | 2018-08-21 | 2018-12-11 | 江苏如东联丰石油机械有限公司 | A kind of chuck novel operating handle mechanism |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20160421 |