CN202055781U - Coiled tubing clamping device and injection head utilizing same - Google Patents
Coiled tubing clamping device and injection head utilizing same Download PDFInfo
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- CN202055781U CN202055781U CN 201120073047 CN201120073047U CN202055781U CN 202055781 U CN202055781 U CN 202055781U CN 201120073047 CN201120073047 CN 201120073047 CN 201120073047 U CN201120073047 U CN 201120073047U CN 202055781 U CN202055781 U CN 202055781U
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- clamping device
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- clamping
- injection head
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Abstract
The utility model provides a coiled tubing clamping device and an injection head utilizing the same, which relate to the field of petroleum drilling and production equipment. The clamping device comprises a saddle-shaped clamping block, a clamping block seat and a gasket, a groove is arranged at the bottom of the saddle-shaped clamping block, at least two pairs of hook pieces are disposed on a side wall of the groove, the clamping block seat comprises a pin shaft and a rolling shaft sleeve sleeved on the pin shaft, a limiting table and a screw hole are arranged at the bottom of the clamping block seat, bosses which correspond to the hook pieces of the clamping block are disposed on two sides of the bottom of the clamping block seat, and two through holes are arranged on the lower portion of the clamping block seat along the direction of the pin shaft. The injection head comprises the coiled tubing clamping device and a transmission chain, and the coiled tubing clamping device is mounted on the transmission chain via the two through holes on the clamping block seat. The coiled tubing clamping device and the injection head utilizing the same in the technical scheme have the advantages that the rolling shaft sleeve is utilized to replace a bearing, so that the injection head is convenient in maintenance, the service life of the injection head is prolonged, and secondly, as the clamping block is simple and convenient to be replaced and has a larger floating range, abrasion to a tubing can be reduced during operation.
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 provides clamping force for injection head, is used to carry coiled tubing.There is following defective in the employed grip block that has rolling element on the injection head at present: the one, and the rolling bearing that uses on the clamping device, its application life is short, and it is difficult to safeguard, lubricated inconvenience, this is this grip block major defect that has rolling element; The 2nd, because the oil field shaft mouth size is various, employed coiled tubing size is also different, and normal wearing and tearing, and injection head needs often to change grip block when work, but used grip block adopts many places to fix on the clamping block, changes complicated.And adopt the fixing mode in many places to make the free gap of grip block on the clamping block less, the automatic adjustment when being unfavorable for grip block clamping oil pipe causes grip block big to the impact of oil pipe, to the serious wear of oil pipe.
The utility model content
The technical problems to be solved in the utility model provides the deficiency of a kind of coiled tubing clamping device with the clamping device that overcomes above-mentioned present use.
In order to overcome the above problems, the utility model adopts following scheme:
A kind of coiled tubing clamping device, comprise saddle type grip block and clamping block, it is characterized in that: described saddle type grip block gap is fixed on the described clamping block, and promptly saddle type grip block can have certain free gap in the vertical direction along the clamping oil pipe on the clamping block.
Described clamping block comprises bearing pin and is set in Rolling bearing on the described bearing pin, described clamping block is along the bearing pin direction, be provided with and be used for two through holes being connected with the injection head chain, the top of described clamping block is provided with three road dividing plates, is provided with the pin shaft hole that is used to install bearing pin on described dividing plate.
Further, the back of described saddle type grip block is provided with groove, is provided with at least two pairs of hooked scarfs at the sidewall of groove; The described clamping block back side is provided with limiting stand, the bolt hole that is used to limit described grip block position, and both sides are provided with the boss corresponding with the hooked scarf of described grip block.Grip block and clamping block be by described hooked scarf and boss interlock mutually, and limit the grip block free gap by the limiting stand and the bolt hole at the clamping block back side.
Further, corresponding boss is respectively three pairs on the hooked scarf of described grip block and the clamping block.
Further, the utility model also comprises the composite material pad that fills up between described grip block and described clamping block, and described pad is provided with corresponding groove and the hole of bottom limiting stand and anchoring filament hole with described clamping block.
Further, the end of described bearing pin also is provided with circlip for shaft.
Further, the circular arc of described saddle type grip block is provided with some grooves perpendicular to the clamping oil pipe.
Further, described Rolling bearing is a Ceramic shaft sleeve.
A kind of coiled tubing clamping device beneficial effect of the present utility model is: one is to use high-abrasive material axle sleeve such as high-intensity pottery to replace rolling bearing, need not to lubricate, and the life-span is long, easily maintenance; The 2nd, owing to adopt block on the grip block, and adopt hooked scarf and boss to clamp and the bolt position limiting structure, it is very convenient to change grip block; Be because bigger gap arranged between block and caging bolt again, can be when oil pipe has displacement grip block can servo-actuated, avoid rigid extruding to oil pipe.
The utility model also provides a kind of oil pipe injection head, it is characterized in that: comprise above-described coiled tubing clamping device.Concrete scheme is as follows:
A kind of oil pipe injection head comprises chain drive-belt, gripper shoe, push pedal, clamping cylinder, is characterized in: described oil pipe clamping device is installed on the described chain drive-belt.Clamping cylinder is fixed on the gripper shoe, described oil pipe clamping device is installed on the chain drive-belt, described push pedal is movably connected on the gripper shoe by connecting rod, the piston of clamping cylinder is pressed against described push pedal one side, and described push pedal another side is pressed on the rolling element of Holding seat of described oil pipe clamping device.When the oil pipe injection head was worked, push pedal compressed the oil pipe clamping device, and driving chain drives the oil pipe clamping device 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 oil pipe clamping device of the present utility model, need not lubricate, make that the maintenance of oil pipe injection head is more convenient, and because the servo-actuated gap of this grip block is big, can be when not being very straight at oil pipe, grip block is avoided the injured or wearing and tearing of oil pipe automatically with moving, the working life that has simultaneously also prolonged the oil pipe injection head, this in addition injection head is very convenient when needs are changed the oil pipe clamping device.
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 pad front view of the utility model coiled tubing clamping device.
Fig. 7 is a kind of oil pipe injection head schematic diagram that adopts the utility model coiled tubing clamping device.
In Fig. 1-Fig. 6: 1, grip block, 2, pad, 3, bolt, 4, the clamping block, 5, Rolling bearing, 6, bearing pin, 7, circlip for shaft; 101, groove, 102, hooked scarf, 103, groove; 201, groove, 202, the hole; 401, pin shaft hole, 402, through hole, 403, boss, 404, bolt hole, 405, limiting stand, 406, dividing plate.
In Fig. 7: 5, Rolling bearing, 11, the oil pipe clamping device, 12, drive sprocket, 13, chain drive-belt, 14, gripper shoe, 15, push pedal, 16, clamping cylinder, 17, oil cylinder piston, 18, movable rod, 19, axle sleeve.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated:
As Fig. 1-shown in Figure 6: a kind of coiled tubing clamping device, comprise saddle type grip block 1 and clamping block 4, described saddle type grip block 1 gap is fixed on the described clamping block 4, be that saddle type grip block 1 can have certain free gap, the left and right sides in the vertical direction along the clamping oil pipe on clamping block 4.
Described clamping block 4 comprises bearing pin 6 and is set in ceramic Rolling bearing 5 on the described bearing pin 6, clamping block 4 is along bearing pin 6 directions, be provided with and be used for two through holes 402 being connected with the injection head chain, be provided with three road dividing plates 406 on the top of clamping block 4, on described dividing plate 406, be provided with the pin shaft hole 401 that is used to install bearing pin 6.
The back of described saddle type grip block 1 is provided with groove 103, is provided with three pairs of hooked scarfs 102 at the sidewall of groove 103; Described clamping block 4 back sides are provided with limiting stand 405, the bolt hole 404 that is used to limit described grip block 1 position, and both sides are provided with the three pair boss 403 corresponding with the hooked scarf 102 of described grip block 1.Grip block 1 and clamping block 4 be by described hooked scarf 102 and boss 403 interlock mutually, and limit grip block 1 free gap by the limiting stand 405 and the bolt hole 404 at clamping block 4 back sides, and its flying height can be avoided the clamping oil pipe is caused damage.
The utility model also comprises the pad 2 that fills up between described grip block 1 and described clamping block 4, described pad 2 is provided with groove 201 and the hole 202 corresponding with the bottom limiting stand 405 of described clamping block 4 and anchoring filament hole 404, this pad can be rubber-like, wear-resisting composite material, as materials such as polyurethane, abrasive rubbers.
End at bearing pin 6 also is provided with circlip for shaft 3.
On the circular arc of saddle type grip block 1, be provided with some grooves 101, make the oil pipe clamping stronger perpendicular to the clamping oil pipe.
The utility model also provides a kind of injection head that adopts above-mentioned coiled tubing clamping device.Concrete scheme is as follows:
As shown in Figure 7: a kind of oil pipe injection head, comprise drive sprocket 12, driving chain 13, gripper shoe 14, push pedal 15, clamping cylinder 16, described gripper shoe 14, clamping cylinder 16, push pedal 15 etc. are installed in the inside of described chain drive-belt 13 closed loop that forms.Be characterized in: the described oil pipe clamping device 11 of many groups is installed on the described chain drive-belt 13 continuously.Gripper shoe 14 is fixed on the frame of injection head, clamping cylinder 16 is fixed on the gripper shoe 14, described oil pipe clamping device 11 is installed on the chain drive-belt 13 by through hole 402, described push pedal 15 is connected on the gripper shoe 14 by 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 in the axle sleeve 19 that is fixed on the gripper shoe 14, and movable rod 18 can slide at axle sleeve 19 with push pedal 15 stressing conditions.The oil cylinder piston 17 of clamping cylinder 16 is pressed against described push pedal 15 one sides, and described push pedal 15 another sides are pressed on the Rolling bearing 5 of Holding seat of described oil pipe clamping device 11.When the oil pipe injection head was worked, push pedal 14 compressed oil pipe clamping device 11, and drive sprocket 12 drives driving chain 13, and drive oil pipe clamping device 11 oil pipe is fed forward, Rolling bearing 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 only is a better embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. coiled tubing clamping device, comprise saddle type grip block (1) and clamping block (4), it is characterized in that: described saddle type grip block (1) is fixed on the described clamping block (4), described clamping block (4) comprises bearing pin (6) and is set in Rolling bearing (5) on the described bearing pin, described clamping block (4) is along bearing pin (6) direction, be provided with two through holes (402) that are used for being connected with the injection head chain, the top of described clamping block (4) is provided with three road dividing plates (406), is provided with the pin shaft hole (401) that is used to install bearing pin (6) on described dividing plate (406).
2. coiled tubing clamping device according to claim 1, it is characterized in that: the back of described saddle type grip block (1) is provided with groove (103), sidewall at groove (103) is provided with at least two pairs of hooked scarfs (102), described clamping block (4) both sides are provided with the boss (403) corresponding with the hooked scarf (102) of described grip block (1), and the back side is provided with limiting stand (405), the bolt hole (404) that is used to limit described grip block (1) position.
3. coiled tubing clamping device according to claim 2 is characterized in that: hooked scarf (102) on the described saddle type grip block (1) and the boss (403) on the described clamping block (4) are respectively equipped with three pairs.
4. according to each described coiled tubing clamping device of claim 1-3, it is characterized in that: also comprise the pad (2) that fills up between described grip block (1) and described clamping block (4), described pad (2) is provided with corresponding groove (201) and hole (202) of bottom limiting stand and anchoring filament hole with described clamping block (4).
5. coiled tubing clamping device according to claim 4 is characterized in that: the end of described bearing pin (6) also is provided with circlip for shaft (7).
6. coiled tubing clamping device according to claim 5 is characterized in that: the circular arc of described saddle type grip block (1) is provided with some grooves perpendicular to the clamping oil pipe (101).
7. coiled tubing clamping device according to claim 6 is characterized in that: described Rolling bearing (5) is a Ceramic shaft sleeve.
8. an oil pipe injection head is characterized in that: comprise each described coiled tubing clamping device as claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120073047 CN202055781U (en) | 2011-03-18 | 2011-03-18 | Coiled tubing clamping device and injection head utilizing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120073047 CN202055781U (en) | 2011-03-18 | 2011-03-18 | Coiled tubing clamping device and injection head utilizing same |
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| Publication Number | Publication Date |
|---|---|
| CN202055781U true CN202055781U (en) | 2011-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201120073047 Expired - Lifetime CN202055781U (en) | 2011-03-18 | 2011-03-18 | Coiled tubing clamping device and injection head utilizing same |
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| CN102140898A (en) * | 2011-03-18 | 2011-08-03 | 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 |
| 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 |
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