CN102116136B - Reverse circulation drill and gripper for same - Google Patents
Reverse circulation drill and gripper for same Download PDFInfo
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- CN102116136B CN102116136B CN 200910244581 CN200910244581A CN102116136B CN 102116136 B CN102116136 B CN 102116136B CN 200910244581 CN200910244581 CN 200910244581 CN 200910244581 A CN200910244581 A CN 200910244581A CN 102116136 B CN102116136 B CN 102116136B
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- slips
- clean
- clamper
- out machine
- receiver
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Abstract
The invention provides a gripper for a reverse circulation drill, comprising a gripping component (2) and a sleeve base (1), wherein the gripping component (2) is sheathed on a sleeve in a dismountable manner, the sleeve base (1) is coaxially installed on the gripping component (2), and a reverse circulation drill body is installed on the sleeve base (1). The reverse circulation drill body is fixed on the sleeve through the gripping component (2), and the sleeve is reliably fixed on the ground so that during the operation of the drill, the drill body can be reliably fixed on the ground and can be prevented from being moved under the action of reacting force; and when inclined holes are drilled, the drill can also be prevented from being overturned, thereby effectively improving the drilling quality of the drill, improving the safety performance and prolonging the service life of the drill. The invention also provides the reverse circulation drill comprising the gripper.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of clamper that is used for clean-out machine.The invention still further relates to a kind of clean-out machine that comprises above-mentioned clamper.
Background technology
Along with the fast development of China's economic construction, market increases for the increasing demand of various engineering machinery especially clean-out machine.
Clean-out machine (being designated hereinafter simply as rig) is widely used in the bore operation in the pile foundation construction of the larger caliber of bridge, harbour and various large-scale land buildings etc. and the big degree of depth.In work progress, clean-out machine generally directly is supported on ground or the platform through its base, and in the process of boring; Drilling rod produces bigger vibration, moves because drilling rod to the reaction force of clean-out machine, makes clean-out machine be easier on ground or platform, produce; Thereby influence the drilling quality of clean-out machine; Move when big or violent, even can cause the bending of drilling rod, influence the application life of drilling rod; When clean-out machine carries out the operation of rat holing, need clean-out machine is tilting, the reaction force during bore operation may cause rig unstable, even topples, and causes Field Force's the injury and the damage of rig and Other Engineering apparatus.
For addressing the above problem; Reduce rig moving on ground or working platform when boring, take to increase rig substructure weight perhaps increases counterweight for rig mode usually, still; Because reaction force suffered in the rig work is bigger; Through the mode that increases base weight and increase counterweight, the heavy burden that has not only increased the rig body, and the effect that its reduction rig moves is also not obvious.
Therefore, moving when how to reduce rig work effectively gets drilling quality thereby improve rig, improves the security performance and the application life of rig, just becomes the problem that those skilled in the art need solve.
Summary of the invention
The purpose of this invention is to provide a kind of clamper that is used for clean-out machine, it can reduce clean-out machine moving in boring procedure effectively; Another object of the present invention provides a kind of clean-out machine that comprises above-mentioned clamper, and it has higher drilling quality, and it has higher safety performance and application life.
For solving the problems of the technologies described above, the present invention provides a kind of clamper that is used for clean-out machine, comprises clamping part and receiver; Said clamping part is set in jacket exterior removably, and said receiver is installed on said clamping part coaxially, and the body of clean-out machine is installed on said receiver; Said clamping part comprises and is semicircle, and relative first slips and second slips of opening; Between said first slips and said second slips power part is installed, said first slips separates with said second slips or clamping so that promote.
Preferably, said power part is an oil cylinder.
Preferably, all be connected removably between said first slips and said receiver and said second slips and the said receiver.
Preferably, said first slips and said receiver and said second slips and said receiver all are connected through bolt and with nut that said bolt matches.
Preferably, comprise also being installed on said first slips and the inner benefit core of said second slips removably that said sleeve pipe is clamped in the said benefit core.
Preferably, said benefit core comprises the 3rd slips that is installed on said first slips inside, and is installed on the 4th inner slips of second slips.
Preferably, between said first slips and said the 3rd slips and between second slips and said the 4th slips positioning element is installed all, so that limit the position between said clamping part and the said benefit core.
Preferably; Said positioning element comprises first location-plate that is individually fixed in said first slips and the said second slips inner ring; And second location-plate that is individually fixed in said the 3rd slips and said the 4th slips outer ring, each said first location-plate and each said second location-plate are all along the axial setting of each slips; In said first location-plate and said second location-plate one is first fen plate and the quarter stuff with suitable circumferential distance, and another person is installed between said first minute plate and the said quarter stuff.
Preferably, said receiver also comprises the benefit tube that is installed on said benefit core coaxially, and said body is through a said mouth of pipe that is supported in said sleeve pipe of mending.
Preferably, said the 3rd slips and the 4th slips are installed in said first slips and said second slips through second bolt respectively; Said benefit tube is installed in the said receiver through the 3rd bolt.
The present invention also provides a kind of clean-out machine, comprises above-mentioned each described clamper.
The present invention provides a kind of clamper that is used for clean-out machine; Comprise clamping part and receiver; Clamping part is set in the outside of sleeve pipe, and above-mentioned receiver is installed on the receiver along the axis of clamping part, and the body of clean-out machine is supported in the mouth of pipe of sleeve pipe through receiver.Like this; Through clamping part the body of clean-out machine is fixed in sleeve pipe and (in construction, all under the position that needs are holed, sleeve pipe is arranged usually; This sleeve pipe and ground secure fixation) on, because sleeve pipe and ground are secure fixation, thereby can be implemented in rig effectively and work the time; Body is fixed in ground reliably, has avoided rig under the effect of reaction force, to be moved; When rat holing, also can avoid rig to topple, thereby improve the drilling quality of rig effectively, and the security performance and the application life of having improved rig.
A kind of preferred embodiment in; Above-mentioned clamping part can specifically comprise first slips and second slips; Two slips are semicircle slips; The opening of two slips is relative, and between said first slips and said second slips power part is installed, so that the radius of said first slips and the formed circle of said second slips can change.Before rig is started working; Radius with the circle that forms between first slips and second slips increases earlier; So that more easily first slips and second slip sleeve are loaded on the outer ring of sleeve pipe,, thereby sleeve is clamped then with the reduced radius of the circle that forms between two slips; Like this, through first slips and second slips sleeve pipe is clamped, it is better to clamp effect, and it is comparatively reliable to work; And slips is simple in structure, and is easy to use, and mostly slips is outsourcing piece, and maintenance cost is lower.
In the another kind of specific embodiment, above-mentioned first slips and the second slips inside can also be equipped with the benefit core, and above-mentioned sleeve pipe is clamped in the above-mentioned benefit core.Like this,, will mend core and in first slips and second slips, take out, sleeve pipe will be clamped in first slips and second slips when needs bore when digging the bigger deep hole of diameter, with realization to operation than large diameter, deep borehole; And when need boring when digging the less deep hole of diameter, through mending core sleeve pipe is clamped, thereby the brill of having realized the different size deep hole digs, and has enlarged the scope of application of rig.
Description of drawings
Fig. 1 is the structural representation of a kind of specific embodiment of clamper provided by the present invention;
Fig. 2 is the structural representation of the another kind of specific embodiment of clamper provided by the present invention;
Fig. 3 is the partial structurtes sketch map of a kind of specific embodiment of benefit core of clamper provided by the present invention;
Fig. 4 is the partial structurtes sketch map of a kind of specific embodiment of clamping part of clamper provided by the present invention.
The specific embodiment
Core of the present invention provides a kind of clamper that is used for clean-out machine, and it can reduce clean-out machine moving in boring procedure effectively; Another core of the present invention provides a kind of clean-out machine that comprises above-mentioned clamper, and it has higher drilling quality, and it has higher safety performance and application life.
In order to make those skilled in the art person understand technical scheme of the present invention better, the present invention is done further detailed description below in conjunction with the accompanying drawing and the specific embodiment.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of specific embodiment of clamper provided by the present invention.
Clamper provided by the present invention; Be used for clean-out machine (hereinafter to be referred as rig); Comprise clamping part 2 and receiver 1, said clamping part 2 is set in the outer ring of sleeve pipe (in large-scale drilling construction, all need have and the fixing sleeve pipe in ground) removably; Receiver 1 is installed generally along the axis of clamping part 2, and the body of rig is supported in the mouth of pipe of sleeve pipe through receiver 1.
In a kind of specific embodiment; Above-mentioned clamping part 2 can comprise first slips 21 and second slips 22; Above-mentioned first slips 21 and second slips 22 are semicircle; Two slips openings are relative, and between two slips power part are installed, so that the radius of formed circle can change within the specific limits between above-mentioned first slips 21 and second slips 22.Before rig is started working; Radius with the circle that forms between first slips 21 and second slips 22 increases earlier; So that more easily first slips 21 and second slips 22 are set in the outer ring of sleeve pipe,, thereby sleeve is clamped then with the reduced radius of the circle that forms between two slips; Like this, through first slips 21 and second slips 22 sleeve pipe is clamped, it is better to clamp effect, and it is comparatively reliable to work; And slips is simple in structure, and it is comparatively convenient to use, and mostly slips is outsourcing piece, and maintenance cost is lower.
Apparently, the variation of the radius of the circle that forms between above-mentioned first slips 21 and second slips 22 is that the impetus through the power part between two slips realizes.
Above-mentioned power part can be oil cylinder 3, and particularly, the cylinder barrel of this oil cylinder 3 can be installed on first slips 21, and then its cylinder bar is fixed in second slips 22; When the cylinder bar of oil cylinder 3 when cylinder barrel stretches out; Distance between first slips 21 and second slips 22 increases, and this moment, sleeve was in unclamped state, and when the cylinder bar of oil cylinder 3 is regained cylinder barrel; Distance between first slips 21 and second slips 22 reduces, and this moment, sleeve was in clamped condition.
Apparently, the cylinder bar of above-mentioned oil cylinder 3 also can be fixed in second slips 22, and its cylinder barrel is fixed in first slips 21; Above-mentioned oil cylinder 3 can radially be installed between two slips through bearing pin 7, certainly, promotes the effect that two slips separate and clamp as long as can play, and the concrete installation form of oil cylinder 3 is unrestricted.
Above-mentioned power part also is not limited to oil cylinder 3, and the parts of motive force also can be provided for other.
Can be connected through bolt 411 respectively between above-mentioned first slips 21 and second slips 22 and the receiver 1; Like this, when first slips 21 or second slips 22 need be pulled down on receiver 1, only need bolt 411 is screwed off; Can be with first slips 21 or 22 dismountings of second slips; Avoided two slips and receiver 1 are damaged, thereby simplified the disassembly process of two slips, and practiced thrift maintenance cost.
Above-mentioned clamper can also comprise and said bolt 411 nut engaged 412 that the axis of above-mentioned bolt 411 can be along the axial setting of above-mentioned two slips and receiver 1, like this; Is under the situation of screwing at bolt 411 with nut 412; First slips 21 and second slips 22 can it radially does open and close movement in the effect lower edge of oil cylinder 3, and when two slips were opened, sleeve pipe can get into; At this moment; Through oil cylinder 3 first slips 21 and second slips 22 are clamped, and with bolt 411 and bolt 412 lockings, to realize effective clamping of two slips.Like this, need not receiver 1 is pulled down the clamping that can realize sleeve pipe, simplified the step of clamp operation.
Apparently, the number of above-mentioned bolt 411 is at least two, and respectively above-mentioned first slips 21 and second slips 22 are installed on receiver 1, the quantity of then above-mentioned nut 412 also is at least two, matches with each nut 411 respectively; Usually, above-mentioned bolt 411 equates with the quantity of nut 412, also is that each bolt 411 is combined with a nut 412.
Above-mentioned bolt 411 can be provided with a plurality of, and a plurality of bolts 411 can be along the circumferential setting of two slips and receiver 1, so that improve connection reliability; Correspondingly, above-mentioned nut 412 also can be provided with a plurality of.
Before rig boring; Clamping part 2 is set in sleeve pipe (in construction, all under the position of needs boring, sleeve pipe is arranged usually; This sleeve pipe and ground secure fixation) go up and locking; Then receiver 1 is installed on clamping part 2 vertically, and the body of rig is supported in the mouth of pipe of sleeve pipe through receiver 1; Like this; Be fixed on the sleeve pipe through the body of clamping part 2 clean-out machine, because sleeve pipe and ground are secure fixation, thereby can be implemented in rig effectively and work the time; Body is fixed in ground reliably, has avoided rig under the effect of reaction force, to be moved; When rig when carrying out the construction operation of rat holing, also can avoid rig to topple, thereby improve the drilling quality of rig effectively, and the security performance and the application life of having improved rig.
Can also further improve clamper provided by the present invention.
Please refer to Fig. 2, Fig. 2 is the structural representation of the another kind of specific embodiment of clamper provided by the present invention.
In the another kind of specific embodiment, clamper provided by the present invention can further include mends core 5, and this benefit core 5 is installed on the inside of first slips 21 and second slips 22 removably, and above-mentioned sleeve pipe clamps and mends in the core 5.Like this,, will mend core 5 and in first slips 21 and second slips 22, take out, sleeve pipe will be clamped in first slips 21 and second slips 22 when needs bore when digging the bigger deep hole of diameter, with realization to bore operation than large diameter, deep borehole; And when need boring when digging the less deep hole of diameter, through mending core 5 sleeve pipe is clamped, thereby the brill of having realized the different size deep hole digs, and has enlarged the scope of application of rig.
Above-mentioned benefit core 5 can comprise the 3rd slips 51 that is installed on said first slips 21 inside, and the 4th slips 52 that is installed on second slips, 22 inside.When the cylinder bar of oil cylinder 3 stretches out in its cylinder barrel; Drive first slips 21 and second slips was opened in 22 minutes; The 3rd slips 51 that then is connected in first slips 21 separates with the 4th slips 52 that is connected in second slips 22 thereupon, and the sleeve plug that diameter is less is then controlled oil cylinder 3 in the 3rd slips 51 and the 4th slips 52; Make its cylinder bar regain cylinder barrel, to realize the clamping of the 3rd slips 51 and 52 pairs of sleeve pipes of the 4th slips.
Above-mentioned the 3rd slips 51 is installed on first slips 21 through bolt 411, and the 4th slips 52 is installed on second slips 22 through bolt 411, like this; On the 3rd slips 51 need be by first slips, pull down, perhaps the 4th slips 52 need only need bolt 411 is screwed off when pulling down on last second slips 22; Can be with the 3rd slips 51 or 52 dismountings of the 4th slips; Avoided each slips is damaged, mended the disassembly process of core 5 thereby simplified, and practiced thrift maintenance cost.
Above-mentioned bolt 411 can be used with nut 412.
Above-mentioned receiver 1 can also comprise mends tube 6; The body of rig is supported in the mouth of pipe of sleeve pipe through above-mentioned benefit tube 6, this mend tube 6 coaxially with mend core 5 and be connected, when the needs brill digs the deep hole than minor diameter; Mend tube 6 and use jointly, further improve the functional performance of clamper with mending core 5.
Please refer to Fig. 3 and Fig. 4, Fig. 3 is the partial structurtes sketch map of a kind of specific embodiment of benefit core of clamper provided by the present invention; Fig. 4 is the partial structurtes sketch map of a kind of specific embodiment of clamping part of clamper provided by the present invention.
Between above-mentioned first slips 21 and the 3rd slips 51 positioning element can be installed, also positioning element can be installed between second slips 22 and the 4th slips 52 simultaneously.Like this, in the course of work of clamper, clamping part and mend circumferential movement between the core 5 parts that are positioned and limit has been avoided clamping part and has been mended core 5 circumferential slip takes place at work, thereby has improved the functional reliability of clamper.
Above-mentioned positioning element can comprise first location-plate 71 that is individually fixed in first slips 21 and second slips, 22 inner rings; And second location-plate 72 that is individually fixed in the 3rd slips 51 and the 4th slips 52 outer rings, each first location-plate 71 and each second location-plate 72 are all along the axial setting of each slips; Comprise first fen plate 721 and quarter stuff 722 in second location-plate 72 with suitable circumferential distance; First location-plate 71 is installed between first fen plate 721 and the quarter stuff 722; So that first location-plate 71 is blocked, make that mending core 5 is synchronized with the movement with clamping part at work through first fen plate 721 and quarter stuff 722.
Also can above-mentioned first location-plate 71 setting be between the first fen plate 721 and quarter stuff 722 with suitable circumferential distance, at this moment, can second location-plate 72 be installed between two fens plates.
The outside of two fens plates of the both sides of above-mentioned first location-plate 71 and second location-plate 72 all can be fixed with first gusset 91; This first gusset 91 can be substantially perpendicular to first location-plate 71; And this first gusset 91 can be provided with several, thereby significantly improves the intensity of each location-plate.
Above-mentioned positioning element can also comprise and is arranged between first slips 21 and the 3rd slips 51 and the locating pin structure between second slips 22 and the 4th slips 52; This locating pin structure may further include alignment pin 81 and dowel plate 82; With being used through alignment pin 81 and dowel plate 82; Further limit clamping part and mend the circumferential play between the core 5, thereby further improve the functional reliability of clamper.
It is pointed out that in Fig. 3 and Fig. 4, to show the positioning element that is arranged between first slips 21 and the 3rd slips 51 respectively, the positioning element of this kind structure can be set between second slips 22 and the 4th slips 52 equally.
Except above-mentioned clamper, the present invention also provides a kind of clean-out machine that comprises above-mentioned clamper, and other each several part structures in this clean-out machine please refer to prior art, repeat no more at this.
More than a kind of clean-out machine provided by the present invention and clamper thereof have been carried out detailed introduction.Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (11)
1. a clamper that is used for clean-out machine is characterized in that, comprises clamping part (2) and receiver (1); Said clamping part (2) is set in jacket exterior removably, and said receiver (1) is installed on said clamping part (2) coaxially, and the body of clean-out machine is installed on said receiver (1); Said clamping part (2) comprises and is semicircle, and relative first slips (21) and second slips (22) of opening; Between said first slips (21) and said second slips (22) power part is installed, said first slips (21) separates with said second slips (22) or clamping so that promote.
2. the clamper that is used for clean-out machine according to claim 1 is characterized in that, said power part is oil cylinder (3).
3. the clamper that is used for clean-out machine according to claim 2 is characterized in that, said first slips (21) all is connected with said receiver (1) with said second slips (22) with said receiver (1) removably.
4. the clamper that is used for clean-out machine according to claim 3; It is characterized in that said first slips (21) and said receiver (1) and said second slips (22) and said receiver (1) all are connected through bolt (411) and with nut (412) that said bolt (411) matches.
5. according to each described clamper that is used for clean-out machine of claim 1 to 4; It is characterized in that; Also comprise being installed on said first slips (21) and the inner benefit core (5) of said second slips (22) removably, said sleeve pipe is clamped in the said benefit core (5).
6. the clamper that is used for clean-out machine according to claim 5; It is characterized in that; Said benefit core (5) comprises the 3rd slips (51) that is installed on said first slips (21) inside, and is installed on inner the 4th slips (52) of second slips (22).
7. the clamper that is used for clean-out machine according to claim 6; It is characterized in that; Between said first slips (21) and said the 3rd slips (51) and between second slips (22) and said the 4th slips (52) positioning element is installed all, so that limit the position between said clamping part (2) and the said benefit core (5).
8. the clamper that is used for clean-out machine according to claim 7; It is characterized in that; Said positioning element comprises first location-plate (71) that is individually fixed in said first slips (21) and said second slips (22) inner ring; And second location-plate (72) that is individually fixed in said the 3rd slips (51) and said the 4th slips (52) outer ring, each said first location-plate (71) and each said second location-plate (72) are all along the axial setting of each slips; In said first location-plate (71) and said second location-plate (72) one is first fen plate (721) and the quarter stuff (722) with suitable circumferential distance, and another person is installed between said first minute plate (721) and the said quarter stuff (722).
9. the clamper that is used for clean-out machine according to claim 6; It is characterized in that; Said receiver (1) also comprises the benefit tube (6) that is installed on said benefit core (5) coaxially, and said body is supported in the mouth of pipe of said sleeve pipe through said benefit tube (6).
10. the clamper that is used for clean-out machine according to claim 9 is characterized in that, said the 3rd slips (51) and the 4th slips (52) are installed in said first slips (21) and said second slips (22) through bolt (411) respectively; Said benefit tube (6) is installed in the said receiver (1) through bolt (411).
11. a clean-out machine is characterized in that, comprises each described clamper of claim 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910244581 CN102116136B (en) | 2009-12-31 | 2009-12-31 | Reverse circulation drill and gripper for same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910244581 CN102116136B (en) | 2009-12-31 | 2009-12-31 | Reverse circulation drill and gripper for same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102116136A CN102116136A (en) | 2011-07-06 |
| CN102116136B true CN102116136B (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910244581 Expired - Fee Related CN102116136B (en) | 2009-12-31 | 2009-12-31 | Reverse circulation drill and gripper for same |
Country Status (1)
| Country | Link |
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| CN (1) | CN102116136B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251123B (en) * | 2014-09-25 | 2016-05-25 | 中国海洋石油总公司 | A kind of reusable anti-icing pillar |
| CN104847255A (en) * | 2015-06-05 | 2015-08-19 | 赵士立 | Foundation piling drill tube |
| CN106703721B (en) * | 2015-11-17 | 2019-05-07 | 徐州盾安重工机械制造有限公司 | A kind of clamp system |
| CN110454613A (en) * | 2019-08-27 | 2019-11-15 | 奥瑞拓能源科技股份有限公司 | A kind of holding tube folder and continuous pipe-conveying device |
| CN113638701B (en) * | 2021-10-13 | 2022-03-25 | 北京恒利新源地热能科技有限公司 | Drill rod centralizer of top drive type geothermal drilling machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1693653A (en) * | 2005-05-24 | 2005-11-09 | 北京交通大学 | Support type universal drilling machine |
| CN2916094Y (en) * | 2006-06-28 | 2007-06-27 | 北京交通大学 | Slide-lifting type universal drilling machine |
| CN201344005Y (en) * | 2008-12-26 | 2009-11-11 | 北京市三一重机有限公司 | Automatic drill rod holding device |
-
2009
- 2009-12-31 CN CN 200910244581 patent/CN102116136B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1693653A (en) * | 2005-05-24 | 2005-11-09 | 北京交通大学 | Support type universal drilling machine |
| CN2916094Y (en) * | 2006-06-28 | 2007-06-27 | 北京交通大学 | Slide-lifting type universal drilling machine |
| CN201344005Y (en) * | 2008-12-26 | 2009-11-11 | 北京市三一重机有限公司 | Automatic drill rod holding device |
Non-Patent Citations (2)
| Title |
|---|
| 万军等.钻机双夹持器的设计与研究.《矿业安全与环保》.2008,第35卷第25-26页. |
| 钻机双夹持器的设计与研究;万军等;《矿业安全与环保》;20081231;第35卷;第25-26页 * |
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| CN102116136A (en) | 2011-07-06 |
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