CN102996083B - Continuous tube injection head - Google Patents
Continuous tube injection head Download PDFInfo
- Publication number
- CN102996083B CN102996083B CN201110264185.3A CN201110264185A CN102996083B CN 102996083 B CN102996083 B CN 102996083B CN 201110264185 A CN201110264185 A CN 201110264185A CN 102996083 B CN102996083 B CN 102996083B
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- China
- Prior art keywords
- continuous
- injection head
- loading beam
- continuous tube
- roll assembly
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- 238000002347 injection Methods 0.000 title claims abstract description 36
- 239000007924 injection Substances 0.000 title claims abstract description 36
- 230000000712 assembly Effects 0.000 claims abstract description 28
- 238000000429 assembly Methods 0.000 claims abstract description 28
- 239000012530 fluid Substances 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 10
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 108010022579 ATP dependent 26S protease Proteins 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
A continuous tube injection head used for clamping a continuous tube comprises two clamping assemblies and a clamping hydraulic cylinder, wherein the two clamping assemblies are arranged on two opposite sides of the continuous tube. Each clamping assembly comprises a chain capable of circularly moving, a plurality of clamping blocks fixed on the chain, a loading beam and at least one roller assembly. The at least one roller assembly can circularly move surrounding the loading beam and is formed by connecting a plurality of rollers in parallel, and the plurality of rollers can rotate when the at least one roller assembly circularly moves surrounding the loading beam. The action force of the continuous tube injection head is transferred to the outer surfaces of the rollers of the at least one roller assembly through the loading beam and then is directly transferred to the clamping blocks. In addition, the at least one roller assembly turns surrounding the loading beam under the action force of friction between the at least one roller assembly and the clamping blocks, and the rollers of the at least one roller assembly are led to rotate. Therefore, service life of the continuous tube injection head is effectively prolonged.
Description
Technical field
The present invention relates to a kind of drilling equipment, relate in particular to a kind of continuous tube injection head of drilling equipment.
Background technology
Existingly generally include two clamp assemblies and the clamping fluid cylinder that is connected two clamp assemblies for clamping the continuous tube injection head of continuous-tube.Two clamp assemblies are arranged at the relative both sides of described continuous-tube.Each clamp assemblies comprises drive sprocket, driven sprocket, driver, chain, multiple grip block and clamped beam.Chain is sheathed on drive sprocket and driven sprocket, drives chain to carry out loopy moving thereby driver is used for driving drive sprocket to rotate.Multiple grip blocks are fixed on also can be along with chain moves on chain.On the bearing pin at the grip block back side, be provided with bearing.The two ends of clamping fluid cylinder are connected with the clamped beam of described two clamp assemblies respectively.Part grip block in multiple grip blocks is between continuous-tube and clamped beam.When hoist continuous-tube or while injecting continuous-tube downwards of needs, clamping fluid cylinder starts, drive two clamped beams to move to the direction near continuous-tube, two clamped beams contact with the bearing on chain, then by bearing pin by force transmission to grip block, to produce enough large frictional force between grip block and continuous-tube; Then, start driver, thereby drive sprocket rotates drive, chain carries out loopy moving, thereby makes grip block clamping continuous-tube inject or hoist.
The bearing of existing another kind of continuous tube injection head is on the bearing pin being arranged on clamped beam, and the back side of grip block is even curface.When hoist continuous-tube or while injecting continuous-tube downwards of needs, clamping fluid cylinder starts, drive two clamped beams to move to the direction near continuous-tube, by the bearing pin on clamped beam by force transmission to bearing, and then be delivered on grip block, to produce enough large frictional force between grip block and continuous-tube; The follow-up driver of restarting, thereby drive sprocket rotates drive, chain carries out loopy moving, thereby makes grip block clamping continuous-tube inject or hoist.
But, above-mentioned two kinds of continuous tube injection heads, all exist same problem, in the continuous-tube rig compared with large level, oil cylinder need to apply very large chucking power and could produce enough large frictional force and ensure enough lifting loads, therefore, is delivered to average load on each bearing pin and bearing also larger, and due to the restriction in physical dimension, it is too large that the size of bearing pin and bearing cannot be selected.Therefore, can be had a strong impact on the application life of above-mentioned two kinds of continuous tube injection heads.
Summary of the invention
In view of this, be necessary to provide a kind of can increase application life continuous tube injection head.
A kind of for clamping the continuous tube injection head of continuous-tube, comprise two clamp assemblies and clamping fluid cylinder, described two clamp assemblies are arranged at the relative both sides of described continuous-tube, described clamp assemblies comprises chain that can loopy moving and is fixed on the multiple grip blocks on described chain, described clamp assemblies also comprises loading beam and at least one roll assembly, described at least one roll assembly can be around described loading beam loopy moving, and described at least one roll assembly is formed in parallel by multiple rollers; Described at least one roll assembly is when around described loading beam loopy moving, and described multiple rollers can rotation; Described grip block is arranged between described continuous-tube and described roller; Described clamping fluid cylinder connects the loading beam of described two clamp assemblies.
Described clamp assemblies also comprises drive sprocket, driven sprocket and driver, and described chain is sheathed on described drive sprocket and described driven sprocket, drives described chain to carry out loopy moving thereby described driver is used for driving described drive sprocket to rotate.
On described loading beam, convex with pressing plate, described at least one roll assembly is sheathed on also can be around described pressing plate loopy moving on described pressing plate.
On described loading beam, be fixed with clamp arm, the two ends of described clamping fluid cylinder are fixed on described clamp arm.
The number of described roll assembly is two, and the number of described pressing plate is also two, and described two roll assemblies are positioned at the same side of described grip block.
Described at least one roll assembly also comprises the bearing pin that is fixed on roller and the multiple junction plates hinged with two adjacent rollers.
Described bearing pin is fixed on described junction plate through two ends after described roller, gapped between described bearing pin and described roller.
Described loading beam comprises substrate, biside plate and pressing plate, and described biside plate is relatively fixed on described substrate, and described pressing plate is fixedly connected with described biside plate, and described at least one roll assembly is sheathed on described pressing plate.
Described loading beam also comprises clamp arm, and described clamp arm is fixed on described substrate, and is connected with described clamping fluid cylinder.
The active force of above-mentioned continuous tube injection head is delivered to by loading beam on the external surface of roller of roll assembly, then be directly delivered on grip block, and, roll assembly with the effect of the frictional force of grip block under, can rotate around loading beam, also can make the roller rotation of roll assembly, therefore, effectively increase continuous tube injection head application life.
Brief description of the drawings
Fig. 1 is the front view of a preferred embodiment continuous tube injection head.
Fig. 2 is that in Fig. 1, continuous tube injection head is removed the generalized section outside housing.
Fig. 3 is generalized section when continuous tube injection head clamps continuous-tube in Fig. 2.
Fig. 4 is the chain of continuous tube injection head and the structural representation of multiple grip blocks in Fig. 2
Fig. 5 is the structural representation of the loading beam of continuous tube injection head in Fig. 2.
Fig. 6 is another visual angle structural representation of the loading beam of continuous tube injection head in Fig. 5.
Fig. 7 is the top view of the loading beam of continuous tube injection head in Fig. 5.
Fig. 8 is the structural representation of the roll assembly of continuous tube injection head in Fig. 2.
Detailed description of the invention
Refer to Fig. 1, Fig. 2 and Fig. 3, continuous tube injection head 100 is for clamping continuous-tube 200, and drives continuous-tube 200 inject to down-hole or continuous-tube 200 is hoisted from down-hole.
Continuous tube injection head 100 comprises housing 10, is arranged at two clamp assemblies 20 in housing 10 and is fixed on the multiple clamping fluid cylinders 40 on housing 10.Clamping fluid cylinder 40 two ends is connected with two clamp assemblies 20 respectively.
Two clamp assemblies 20 are arranged at the relative both sides of continuous-tube 200 symmetrically, for clamping continuous-tube 200, drive continuous-tube 200 inject to down-hole or continuous-tube 200 is hoisted from down-hole.The 26S Proteasome Structure and Function of two clamp assemblies 20 is identical.
Each clamp assemblies 20 comprises drive sprocket 21, driven sprocket 22, driver 23, chain 24, multiple grip block 25, loading beam 26 and two roll assemblies 27.
Drive sprocket 21 and driven sprocket 22 are arranged at respectively the opposite end in housing 10.
Driver 23 is installed on housing 10.Driver 23 energy rotating bi-directional drive, for being connected with drive sprocket 21, to drive drive sprocket 21 to rotate and reverse.
Please refer to Fig. 4, engage with drive sprocket 21 chain 24 one end, and the other end engages with driven sprocket 22.Chain 24 can carry out loopy moving under the drive of drive sprocket 21.
Multiple grip blocks 25 are arranged on chain 24, and can move along with chain 25.On each grip block 25, all offer to accommodate the accepting groove 251 of continuous-tube 200.In the time that continuous tube injection head 100 clamps continuous-tube 200, continuous-tube 200 is positioned at the accepting groove 251 of grip block.
Refer to Fig. 5, Fig. 6 and Fig. 7, loading beam 26 is arranged in housing 10, and between drive sprocket 21 and driven sprocket 22.Loading beam comprises substrate 262, biside plate 264 and 266, two pressing plates 261 and multiple clamp arm 263.Biside plate 264 and 266 is relatively fixed on substrate 262.Pressing plate 261 is arranged between biside plate 264 and 266, and two ends are fixedly connected with 266 with biside plate 264, to form clearance space between substrate 262 and pressing plate 261.Multiple clamp arms 263 are fixed on substrate 262, and two ends stretch out housing 10, clamp fluid cylinder 40 to connect.
Refer to Fig. 8, two roll assemblies 27 are sheathed on respectively on two pressing plates 261, under the effect of external force, can rotate around two pressing plates 261.Each roll assembly 27 comprises multiple rollers 271, multiple bearing pin 273 and multiple junction plate 275.On roller 271, offer axially extending bore, multiple rollers 271 are arranged in annular side by side.Multiple bearing pins 273 are respectively through axially extending bore, gapped between bearing pin 273 and roller 271.The two ends of each junction plate 275 are articulated with respectively the end of two adjacent bearing pins 273, to make roll assembly 27 as chain.In the time that roll assembly 27 is sheathed on pressing plate 261, part roller 271 is between pressing plate 261 and grip block 25.In the present embodiment, bearing pin 273 and roller 271 are element independently, and in other embodiments, bearing pin 273 and roller 271 can be integrated.
In the present embodiment, the number of roll assembly 27 is two, and the number of pressing plate 261 is also two, and in other embodiments, the number of roll assembly 27 can be one or more, and accordingly, the number of pressing plate 261 is corresponding with the number of roll assembly 27.
Clamp fluid cylinder 40 two ends be connected with the clamp arm 263 on loading beam 26 respectively, in order to drive two loading beams 26 near or away from side move upward.
When hoist continuous-tube 200 or inject when continuous-tube 200 to down-hole of need, first, start and clamp fluid cylinder 40, make two loading beams 26 to the direction motion near continuous-tube 200, promote roll assembly 27 by the pressing plate 261 of loading beam 26 and contact with grip block 25, active force is delivered to the external surface of roller 271 of roll assembly 27 from the pressing plate 261 of loading beam 26, then is directly delivered on grip block 25, to produce enough large frictional force between grip block 25 and continuous-tube 200, and keep this state; Then, start two drivers 23, two drive sprockets 21 are rotated backward, drive chain 24 to carry out loopy moving, thereby drive grip block 25 to clamp continuous-tube 200 and inject or hoist, meanwhile, roll assembly 27 with the effect of the frictional force of grip block 25 under, can rotate around pressing plate 261, also can make the roller 271 of roll assembly 27 rotate around bearing pin 273.
The active force of the clamping fluid cylinder 40 of above-mentioned continuous tube injection head 100 is delivered to by the pressing plate 261 of loading beam 26 on the external surface of roller 271 of roll assembly 27, then be directly delivered on grip block 25, and, roll assembly 27 with the effect of the frictional force of grip block 25 under, can rotate around pressing plate 261, also can make the roller 271 of roll assembly 27 rotate around bearing pin 273, therefore, effectively reduce the application life impact of pair of rollers 271 and bearing pin 273, increased by 100 application lifes of continuous tube injection head.
Claims (9)
1.
oneplant the continuous tube injection head for clamping continuous-tube, comprise two clamp assemblies and clamping fluid cylinder, described two clamp assemblies are arranged at the relative both sides of described continuous-tube, described clamp assemblies comprises chain that can loopy moving and is fixed on the multiple grip blocks on described chain, it is characterized in that: described clamp assemblies also comprises loading beam and at least one roll assembly, described at least one roll assembly can be around described loading beam loopy moving, and described at least one roll assembly is formed in parallel by multiple rollers; Described at least one roll assembly is when around described loading beam loopy moving, and described multiple rollers can rotation; Described grip block is arranged between described continuous-tube and described at least one roller; Described clamping fluid cylinder connects the loading beam of described two clamp assemblies.
2. continuous tube injection head as claimed in claim 1, it is characterized in that: described clamp assemblies also comprises drive sprocket, driven sprocket and driver, described chain is sheathed on described drive sprocket and described driven sprocket, drives described chain to carry out loopy moving thereby described driver is used for driving described drive sprocket to rotate.
3. continuous tube injection head as claimed in claim 1, is characterized in that: on described loading beam, convex with pressing plate, described at least one roll assembly is sheathed on also can be around described pressing plate loopy moving on described pressing plate.
4. continuous tube injection head as claimed in claim 3, is characterized in that: on described loading beam, be fixed with clamp arm, the two ends of described clamping fluid cylinder are fixed on described clamp arm.
5. continuous tube injection head as claimed in claim 3, is characterized in that: the number of described roll assembly is two, and the number of described pressing plate is also two, and described two roll assemblies are positioned at the same side of described grip block
.
6. continuous tube injection head as claimed in claim 1, is characterized in that: described at least one roll assembly also comprises the bearing pin that is fixed on roller and the multiple junction plates hinged with two adjacent rollers
.
7. continuous tube injection head as claimed in claim 6, is characterized in that: described bearing pin is fixed on described junction plate through two ends after described roller, gapped between described bearing pin and described roller
.
8. continuous tube injection head as claimed in claim 1, it is characterized in that: described loading beam comprises substrate, biside plate and pressing plate, described biside plate is relatively fixed on described substrate, and described pressing plate is fixedly connected with described biside plate, and described at least one roll assembly is sheathed on described pressing plate
.
9. continuous tube injection head claimed in claim 8, is characterized in that: described loading beam also comprises clamp arm, and described clamp arm is fixed on described substrate, and is connected with described clamping fluid cylinder
.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110264185.3A CN102996083B (en) | 2011-09-08 | 2011-09-08 | Continuous tube injection head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110264185.3A CN102996083B (en) | 2011-09-08 | 2011-09-08 | Continuous tube injection head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102996083A CN102996083A (en) | 2013-03-27 |
| CN102996083B true CN102996083B (en) | 2014-11-12 |
Family
ID=47925130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110264185.3A Active CN102996083B (en) | 2011-09-08 | 2011-09-08 | Continuous tube injection head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102996083B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289871A (en) * | 2016-11-04 | 2017-01-04 | 界首市金龙机械设备有限公司 | Foodstuffs sampler |
| CN106404461A (en) * | 2016-11-04 | 2017-02-15 | 界首市金龙机械设备有限公司 | Grain sampling machine |
| CN106442009A (en) * | 2016-11-04 | 2017-02-22 | 界首市金龙机械设备有限公司 | Grain sampler |
| CN107100569B (en) * | 2017-06-23 | 2019-04-05 | 西南石油大学 | A kind of Dual Implantations head coiled tubing unit |
| CN111829944B (en) * | 2019-04-15 | 2023-07-25 | 中国石油天然气集团有限公司 | Clamping performance test device for clamping block of injection head |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201292786Y (en) * | 2008-11-24 | 2009-08-19 | 中国石油天然气集团公司 | Continuous tube chain clamping device |
| CN201567978U (en) * | 2009-11-25 | 2010-09-01 | 中国石油天然气集团公司 | Injection head of coiled tubing |
| CN102052399A (en) * | 2010-12-22 | 2011-05-11 | 中国石油天然气集团公司 | Roller bearing used on injection head |
| CN201902180U (en) * | 2010-12-17 | 2011-07-20 | 中国石油天然气集团公司 | Low noise injection head |
| CN202300253U (en) * | 2011-09-08 | 2012-07-04 | 四川宏华石油设备有限公司 | Continuous pipe injection head |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2006228343A1 (en) * | 2005-03-30 | 2006-10-05 | Asep Holding Bv | Improved coiled tubing injector head |
-
2011
- 2011-09-08 CN CN201110264185.3A patent/CN102996083B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201292786Y (en) * | 2008-11-24 | 2009-08-19 | 中国石油天然气集团公司 | Continuous tube chain clamping device |
| CN201567978U (en) * | 2009-11-25 | 2010-09-01 | 中国石油天然气集团公司 | Injection head of coiled tubing |
| CN201902180U (en) * | 2010-12-17 | 2011-07-20 | 中国石油天然气集团公司 | Low noise injection head |
| CN102052399A (en) * | 2010-12-22 | 2011-05-11 | 中国石油天然气集团公司 | Roller bearing used on injection head |
| CN202300253U (en) * | 2011-09-08 | 2012-07-04 | 四川宏华石油设备有限公司 | Continuous pipe injection head |
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| Publication number | Publication date |
|---|---|
| CN102996083A (en) | 2013-03-27 |
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