CN202578585U - Coiled tubing clamping mechanism and injector head using same - Google Patents
Coiled tubing clamping mechanism and injector head using same Download PDFInfo
- Publication number
- CN202578585U CN202578585U CN 201220168784 CN201220168784U CN202578585U CN 202578585 U CN202578585 U CN 202578585U CN 201220168784 CN201220168784 CN 201220168784 CN 201220168784 U CN201220168784 U CN 201220168784U CN 202578585 U CN202578585 U CN 202578585U
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- CN
- China
- Prior art keywords
- clamping block
- saddle type
- clamping
- coiled tubing
- grip block
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to the field of oil drilling equipment and provides a coiled tubing clamping mechanism and an injector head using the same. The coiled tubing clamping mechanism comprises a saddle type clamping block and a clamping block seat; the saddle type clamping block is connected to the clamping block seat; the coiled tubing clamping mechanism is characterized in that tongue platforms are arranged at both sides of the saddle type clamping block; openings are positioned on the tongue platforms; grooves are arranged on the back of the saddle type clamping block; a pair of lug bosses is arranged at both sides of the clamping block seat, respectively; the grooves of the saddle type clamping block are mounted on slots formed by the lug bosses of the clamping block seat in a plug-in manner; movable gaps are maintained between the grooves and the slots; and a positioning screw for limiting a position of the saddle type clamping block is arranged on the clamping block seat; meanwhile, the injector head comprises the tubing clamping mechanism and a transmission chain; and the tubing clamping mechanism is mounted on the transmission chain via two pin holes on the clamping block seat. By adopting the technical scheme of the utility model, the wear of the tubing can be effectively avoided, the use is reliable and the clamping block can be replaced conveniently.
Description
Technical field
The utility model relates to the oil drilling and extracting equipment field, and particularly a kind of coiled tubing clamping device also relates to the injection head that adopts this clamping device.
Background technology
Injection head is the core component of coiled tubing equipment, and clamping device is that injection head provides clamping force, is used to carry coiled tubing.The employed clamping device that has a rolling element is owing to there is following defective in the syndeton reason between grip block and the clamping block on the injection head at present commonly used: the one, and the grip block that uses on the clamping device can not slide on the clamping block; Be unfavorable for the active centering adjustment of grip block; Cause the oil pipe that weares and teares, reduced the application life of oil pipe; The 2nd, directly contact between traditional clamping device, grip block and clamping block, be unfavorable for cushioning the impact of grip block, to the serious wear of oil pipe to oil pipe.The patent No. is that 201120073047.2 utility model patent discloses a kind of coiled tubing clamping device; Be interlockingly connected through the boss on hooked scarf on the said grip block and the said clamping block between its grip block and the clamping block; This makes grip block certain play to be arranged the direction perpendicular to the clamping oil pipe in clamping block upper edge, and the play position that limits grip block through limiting stand and the caging bolt of being located on the said clamping block relative with limiting stand.Though preferably resolve above-mentioned like this because of the stiff problem of bringing of grip block; And it is more or less freely to make grip block change; But remain: because the play at random of grip block produces frequent shearing force to caging bolt in the work in following deficiency; Cause this caging bolt fracture frequent, influence the injection head continuous operation; Be to move grip block so that hooked scarf and boss break off relations along the oil pipe direction when changing grip block again, be awkward.
The utility model content
The technical problem that the utility model will solve is, a kind of new continuous oil pipe clamping mechanism is provided, and reducing the wearing and tearing of clamping device to the clamping oil pipe, and it is more reliable to make that clamping device uses, and it is more convenient that grip block is changed.
In order to solve above technical problem, the utility model adopts following scheme:
A kind of coiled tubing clamping device; Comprise saddle type grip block and clamping block; Said clamping block comprises bearing pin and is set in the rolling element on the said bearing pin that said clamping block is provided with two through holes that are used for plug-in mounting injection head chain connection bearing pin along the bearing pin direction; The top of said clamping block is provided with three road dividing plates, on said dividing plate, is provided with the pin shaft hole that is used to install bearing pin;
Its characteristics are: the both sides of said saddle type grip block are provided with the tongue platform; Said tongue platform is provided with open pore; The back of said saddle type grip block is provided with groove, and said clamping block both sides are respectively equipped with pair of projections, between said homonymy boss, forms and the corresponding draw-in groove of said groove; The groove of said saddle type grip block is inserted on the draw-in groove of said clamping block; Leave the play gap along said bearing pin direction between said groove and the said draw-in groove, also be provided with screwed hole on the said clamping block, said screwed hole is provided with the dog screw that is used to limit said saddle type grip block position.
The beneficial effect of the utility model is: because the draw-in groove that forms through the boss on the clamping block defines saddle type grip block along the direction play position perpendicular to the clamping oil pipe; Adopt dog screw to be fixed on the said clamping block saddle type grip block is spacing; So both guaranteed that grip block can have certain play with oil pipe; Can not produce again and shear, avoid wearing and tearing, improve the reliability of injection head work yet oil pipe to dog screw; In addition, when needs are changed grip block, saddle type grip block is broken away from, be convenient to the maintenance of injection head as long as screw out two dog screws.
On the basis of technique scheme, the utility model can also be done following improvement.
Further, said dog screw is that plug is played screw, and said plug is beaten the diameter of the screw rod external diameter of screw less than said open pore.
Adopt the beneficial effect of above-mentioned further scheme to be, fill in the open pore that said saddle type grip block is passed on the top of playing screw, grip block receives the restriction of clamping block draw-in groove can not produce shearing force to screw.
Further, also comprise the pad that fills up between said saddle type grip block and said clamping block, said pad is provided with the spacing hole corresponding with the bottom thread hole of said clamping block, and said pad can be solid flat board, also can be provided with the hole of some.
Adopt the beneficial effect of above-mentioned further scheme to be, select for use elastomeric pad can effectively cushion the radial impact that oil pipe produces grip block, thereby protection oil pipe and grip block are not damaged.
Further, the end of said bearing pin also is provided with circlip for shaft.
Adopt the beneficial effect of above-mentioned further scheme to be, circlip for shaft is used to prevent that bearing pin from scurrying the position.
Further, the circular arc of said saddle type grip block is provided with some grooves perpendicular to the clamping oil pipe.
Adopt the beneficial effect of above-mentioned further scheme to be, groove can hold the impurity that gets into the grip block circular arc, and oil pipe is shielded.
Further, said rolling element is rolling bearing or Rolling bearing.
Adopt the beneficial effect of above-mentioned further scheme to be, rolling bearing or Rolling bearing roll in the injection head push pedal, can reduce the resistance of motion of clamping device.
The utility model also provides a kind of coiled tubing injection head, it is characterized in that: comprise above-described coiled tubing clamping device.Concrete scheme is following:
A kind of oil pipe injection head comprises drive sprocket, driving chain, gripper shoe, push pedal, clamping cylinder, is characterized in: said oil pipe clamping mechanism is installed on the said driving chain.Clamping cylinder is fixed on the gripper shoe; Said oil pipe clamping mechanism is installed on the driving chain; Said push pedal is connected on the gripper shoe through movable rod; The piston of clamping cylinder is pressed against said push pedal one side, and said push pedal another side is pressed on the rolling element of Holding seat of said oil pipe clamping mechanism.When the oil pipe injection head was worked, push pedal compressed oil pipe clamping mechanism, and driving chain drives oil pipe clamping mechanism oil pipe is fed forward, and Rolling bearing rolls on chain pressing plate.
The beneficial effect of this oil pipe injection head is: owing to adopt the oil pipe clamping mechanism of the utility model, the servo-actuated gap of its grip block is big, can be when not being very straight at oil pipe, and grip block avoid the injured or wearing and tearing of oil pipe, and grip block is changed easily automatically with moving.Increase pad in the clamping device, reduced the impact of grip block, prolonged the application life of oil pipe oil pipe.
Description of drawings
Fig. 1 is the structural representation of the utility model coiled tubing clamping device;
Fig. 2 is the grip block front view of the utility model coiled tubing clamping device;
Fig. 3 is the grip block lateral view of the utility model coiled tubing clamping device;
Fig. 4 is the clamping block front view of the utility model coiled tubing clamping device;
Fig. 5 is the clamping block lateral view of the utility model coiled tubing clamping device;
Fig. 6 is the clamping block upward view of the utility model coiled tubing clamping device;
Fig. 7 is the pad front view of the utility model coiled tubing clamping device;
Fig. 8 is a kind of oil pipe injection head sketch map that adopts the utility model coiled tubing clamping device.
In Fig. 1-Fig. 7: 1, grip block, 2, dog screw, 3, pad, 4, the clamping block, 5, rolling element, 6, bearing pin, 7, circlip for shaft; 101, groove, 102, the tongue platform, 103, open pore; 104, groove, 301, spacing hole, 302, the hole; 401, pin shaft hole, 402, through hole, 403, dividing plate, 404, screwed hole, 405, draw-in groove, 406, boss.
In Fig. 8: 5, rolling element, 11, oil pipe clamping mechanism, 12, drive sprocket, 13, driving chain, 14, gripper shoe, 15, push pedal, 16, clamping cylinder, 17, oil cylinder piston, 18, movable rod, 19, axle sleeve.
The specific embodiment
Elaborate below in conjunction with the specific embodiment of accompanying drawing to the utility model:
Like Fig. 1-shown in Figure 7: a kind of coiled tubing clamping device; Comprise saddle type grip block 1 and clamping block 4; Said clamping block 4 comprises bearing pin 6 and is set in the rolling element 5 on the said bearing pin, and said clamping block 4 is along bearing pin 6 directions, is provided with to be used for plug-in mounting is connected bearing pin with the injection head chain two through holes 402; The top of said clamping block 4 is provided with three road dividing plates 403, on said dividing plate 403, is provided with the pin shaft hole 401 that is used to install bearing pin 6;
The both sides of said saddle type grip block 1 are provided with tongue platform 102; Said tongue platform 102 is provided with open pore 103; The back of said saddle type grip block 1 is provided with groove 104, and said clamping block 4 both sides are respectively equipped with pair of projections 406, between said homonymy boss, forms and said groove 104 corresponding draw-in grooves 405; The groove 104 of said saddle type grip block is inserted on the draw-in groove 405 of said clamping block; Leave the play gap along said bearing pin 6 directions between said groove 104 and the said draw-in groove 405, also be provided with screwed hole 404 on the said clamping block 4, said screwed hole 404 is provided with the dog screw 2 that is used to limit said saddle type grip block 1 position.
Said dog screw 2 is that plug is played screw, and said plug is beaten the diameter of the screw rod external diameter of screw less than said open pore 103.Said plug is played screw and also is check screw, and its structure generally is that head of screw, polished rod and screw mandrel connect successively, and the polished rod diameter forms shoulder greater than leading screw at polished rod and screw mandrel junction.
In the practical implementation, the tongue platform 102 of said grip block 1 both sides is stuck on the said polished rod, makes said grip block 1 relative clamping block 4 at left and right directions the play gap arranged, and this gap size receives the restriction of said draw-in groove 405; The shoulder that said plug is played screw is stuck on the round platform of said screwed hole 404, and screw mandrel is formed position-limiting action, makes grip block 1 certain free gap also arranged beating screw axial along plug, can flexible play to guarantee grip block 1.
The utility model also comprises the pad 3 that fills up between said saddle type grip block 1 and said clamping block 4; Said pad 3 is provided with the spacing hole 301 corresponding with the bottom thread hole of said clamping block 4 404; Said pad 3 can be solid flat board, also can be provided with the hole 302 of some.
The end of said bearing pin 6 also is provided with circlip for shaft 7.
The circular arc of said saddle type grip block 1 is provided with some grooves 101 perpendicular to the clamping oil pipe.
Said rolling element 5 is rolling bearing or Rolling bearing.
The utility model also provides a kind of injection head that adopts above-mentioned coiled tubing clamping device.Concrete scheme is following:
As shown in Figure 8: a kind of oil pipe injection head, comprise drive sprocket 12, driving chain 13, gripper shoe 14, push pedal 15, clamping cylinder 16, said gripper shoe 14, clamping cylinder 16, push pedal 15 etc. are installed in the inside of said driving chain 13 closed loop that forms.Be characterized in: the said oil pipe clamping mechanism 11 of many groups is installed on the said driving chain 13 continuously.Gripper shoe 14 is fixed on the frame of injection head; Clamping cylinder 16 is fixed on the gripper shoe 14, and said oil pipe clamping mechanism 11 is installed on the driving chain 13 through through hole 402, and said push pedal 15 is connected on the gripper shoe 14 through movable rod 18; An end of movable rod is an oscillating bearing in this example; Be connected in the push pedal 15, the other end inserts and is fixed in the axle sleeve 19 on the gripper shoe 14, and movable rod 18 can slide on axle sleeve 19 with push pedal 15 stressing conditions.The oil cylinder piston 17 of clamping cylinder 16 is pressed against on the one side of said push pedal 15, and said push pedal 15 another sides are pressed on the rolling element 5 of Holding seat of said oil pipe clamping mechanism 11.When the oil pipe injection head was worked, push pedal 15 compressed oil pipe clamping mechanism 11, and drive sprocket 12 drives driving chain 13; And drive oil pipe clamping mechanism 11 oil pipe is fed forward; Rolling element 5 rolls in push pedal 15, and under the effect of two opposites, two saddle types grip block, oil pipe moves to direction initialization.
The above is merely the preferred embodiments of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement etc., all should be included within the protection domain of the utility model.
Claims (7)
1. coiled tubing clamping device; Comprise saddle type grip block (1) and clamping block (4); Said clamping block (4) comprises bearing pin (6) and is set in the rolling element (5) on the said bearing pin that said clamping block (4) is provided with two through holes (402) that are used for plug-in mounting injection head chain connection bearing pin along bearing pin (6) direction; The top of said clamping block (4) is provided with three road dividing plates (403), on said dividing plate (403), is provided with the pin shaft hole (401) that is used to install bearing pin (6);
It is characterized in that: the both sides of said saddle type grip block (1) are provided with tongue platform (102); Said tongue platform (102) is provided with open pore (103); The back of said saddle type grip block (1) is provided with groove (104); Said clamping block (4) both sides are respectively equipped with pair of projections (406); Between said homonymy boss (406), form and the corresponding draw-in groove of said groove (104) (405), the groove (104) of said saddle type grip block is inserted on the draw-in groove (405) of said clamping block, leaves the play gap along said bearing pin (6) direction between said groove (104) and the said draw-in groove (405); Also be provided with screwed hole (404) on the said clamping block (4), said screwed hole (404) is provided with the dog screw (2) that is used to limit said saddle type grip block (1) position.
2. coiled tubing clamping device according to claim 1 is characterized in that: said dog screw (2) is that plug is played screw.
3. coiled tubing clamping device according to claim 1 and 2; It is characterized in that: also comprise the pad (3) that fills up between said saddle type grip block (1) and said clamping block (4); Said pad (3) is provided with the spacing hole (301) corresponding with the bottom thread hole (404) of said clamping block (4); Said pad (3) can be solid flat board, also can be provided with the hole (302) of some.
4. coiled tubing clamping device according to claim 3 is characterized in that: the end of said bearing pin (6) also is provided with circlip for shaft (7).
5. coiled tubing clamping device according to claim 4 is characterized in that: the circular arc of said saddle type grip block (1) is provided with some grooves perpendicular to the clamping oil pipe (101).
6. coiled tubing clamping device according to claim 5 is characterized in that: said rolling element (5) is rolling bearing or Rolling bearing.
7. an oil pipe injection head is characterized in that: comprise like each described coiled tubing clamping device of claim 1～6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220168784 CN202578585U (en) | 2012-04-19 | 2012-04-19 | Coiled tubing clamping mechanism and injector head using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220168784 CN202578585U (en) | 2012-04-19 | 2012-04-19 | Coiled tubing clamping mechanism and injector head using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202578585U true CN202578585U (en) | 2012-12-05 |
Family
ID=47248006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220168784 Expired - Lifetime CN202578585U (en) | 2012-04-19 | 2012-04-19 | Coiled tubing clamping mechanism and injector head using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202578585U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704870A (en) * | 2012-04-19 | 2012-10-03 | 烟台杰瑞石油服务集团股份有限公司 | Coiled tubing clamping device and injection head using same |
| US9995094B2 (en) | 2014-03-10 | 2018-06-12 | Consolidated Rig Works L.P. | Powered milling clamp for drill pipe |
| US10787870B1 (en) | 2018-02-07 | 2020-09-29 | Consolidated Rig Works L.P. | Jointed pipe injector |
-
2012
- 2012-04-19 CN CN 201220168784 patent/CN202578585U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704870A (en) * | 2012-04-19 | 2012-10-03 | 烟台杰瑞石油服务集团股份有限公司 | Coiled tubing clamping device and injection head using same |
| CN102704870B (en) * | 2012-04-19 | 2014-05-07 | 烟台杰瑞石油服务集团股份有限公司 | Coiled tubing clamping device and injection head using same |
| US9995094B2 (en) | 2014-03-10 | 2018-06-12 | Consolidated Rig Works L.P. | Powered milling clamp for drill pipe |
| US10787870B1 (en) | 2018-02-07 | 2020-09-29 | Consolidated Rig Works L.P. | Jointed pipe injector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121205 Effective date of abandoning: 20140507 |
|
| RGAV | Abandon patent right to avoid regrant |