CN102996083A - Continuous tube injection head - Google Patents
Continuous tube injection head Download PDFInfo
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- CN102996083A CN102996083A CN2011102641853A CN201110264185A CN102996083A CN 102996083 A CN102996083 A CN 102996083A CN 2011102641853 A CN2011102641853 A CN 2011102641853A CN 201110264185 A CN201110264185 A CN 201110264185A CN 102996083 A CN102996083 A CN 102996083A
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- injection head
- continuous
- loading beam
- continuous tube
- roll assembly
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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
The existing continuous tube injection head that is used for the clamping continuous-tube generally includes two clamp assemblies and the clamping fluid cylinder that is connected two clamp assemblies.Two clamp assemblies are arranged at the relative both sides of described continuous-tube.Each clamp assemblies comprises drive sprocket, driven sprocket, driver, chain, a plurality of grip block and clamped beam.Chain is sheathed on drive sprocket and the driven sprocket, and chain carries out loopy moving thereby driver is used for driving drive sprocket rotation drive.A plurality of grip blocks are fixed in also can be along with chain moves on the chain.Be provided with bearing on the bearing pin at the grip block back side.The two ends of clamping fluid cylinder are connected with the clamped beam of described two clamp assemblies respectively.Part grip block in a plurality of grip blocks is between continuous-tube and clamped beam.When hoist continuous-tube or when injecting continuous-tube downwards of needs, the clamping fluid cylinder starts, driving two clamped beams moves to the direction near continuous-tube, two clamped beams contact with bearing on the chain, then by bearing pin with force transmission to grip block, between grip block and continuous-tube, to produce enough large frictional force; Then, start driver, thereby drive sprocket rotates and drives chain and carry out loopy moving, thereby so that grip block clamping continuous-tube inject or hoist.
The bearing of existing another kind of continuous tube injection head then is on the bearing pin that is arranged on the clamped beam, and the back side of grip block then is even curface.When hoist continuous-tube or when injecting continuous-tube downwards of needs, the clamping fluid cylinder starts, driving two clamped beams moves to the direction near continuous-tube, by the bearing pin on the clamped beam with force transmission to bearing, and then be delivered on the grip block, between grip block and continuous-tube, to produce enough large frictional force; The follow-up driver of restarting carries out loopy moving thereby drive sprocket rotate to drive chain, thereby so that grip block clamping continuous-tube inject or hoist.
Yet, above-mentioned two kinds of continuous tube injection heads, all exist same problem, in the continuous-tube rig than large level, oil cylinder need to apply very large chucking power and could produce enough large frictional force and guarantee enough lifting loads, and therefore, the average load that is delivered on each bearing pin and the bearing is also larger, and because the restriction on the physical dimension, it is too large that the size of bearing pin and bearing can't 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 continuous tube injection head for the 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 in a plurality of grip blocks on the 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 a plurality of rollers; Described at least one roll assembly is around described loading beam loopy moving the time, and described a plurality of rollers can rotation; Described grip block is arranged between described continuous-tube and the 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 the described driven sprocket, rotates and drives described chain and carry out loopy moving thereby described driver is used for driving described drive sprocket.
Convex with pressing plate on the described loading beam, described at least one roll assembly is sheathed on also can be around described pressing plate loopy moving on the described pressing plate.
Be fixed with clamp arm on the described loading beam, the two ends of described clamping fluid cylinder are fixed on the described clamp arm.
The number of described roll assembly is two, and the number of described pressing plate also is 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 the roller and a plurality of junction plates hinged with two adjacent rollers.
Two ends were fixed on the described junction plate after described bearing pin passed described roller, and are gapped between described bearing pin and the described roller.
Described loading beam comprises substrate, biside plate and pressing plate, and described biside plate relatively is fixed on the described substrate, and described pressing plate is fixedly connected with described biside plate, and described at least one roll assembly is sheathed on the described pressing plate.
Described loading beam also comprises clamp arm, and described clamp arm is fixed on the 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 the grip block, and, roll assembly with the effect of the frictional force of grip block under, namely can rotate around loading beam, also can be so that the roller rotation of roll assembly, therefore, effectively increase continuous tube injection head application life.
Description of drawings
Fig. 1 is the front view of a preferred embodiment continuous tube injection head.
Fig. 2 is that continuous tube injection head is removed the outer generalized section of housing among Fig. 1.
Fig. 3 is the generalized section during continuous tube injection head clamping continuous-tube among Fig. 2.
Fig. 4 is the chain of continuous tube injection head among Fig. 2 and the structural representation of a plurality of grip blocks.
Fig. 5 is the structural representation of the loading beam of continuous tube injection head among Fig. 2.
Fig. 6 is another visual angle structural representation of the loading beam of continuous tube injection head among Fig. 5.
Fig. 7 is the top view of the loading beam of continuous tube injection head among Fig. 5.
Fig. 8 is the structural representation of the roll assembly of continuous tube injection head among Fig. 2.
Specific embodiment
See also Fig. 1, Fig. 2 and Fig. 3, continuous tube injection head 100 is used for clamping continuous-tube 200, and drives that continuous-tube 200 injects to the down-hole or continuous-tube 200 is hoisted from the down-hole.
Continuous tube injection head 100 comprises housing 10, be arranged at two clamp assemblies 20 in the housing 10 and be fixed in a plurality of clamping fluid cylinders 40 on the 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, are used for clamping continuous-tube 200, drive that continuous-tube 200 injects to the down-hole or continuous-tube 200 is hoisted from the 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, a plurality of 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 the housing 10.
Please consult simultaneously Fig. 4, chain 24 1 ends and drive sprocket 21 engagements, the other end and driven sprocket 22 engagements.Chain 24 can carry out loopy moving under the drive of drive sprocket 21.
A plurality of grip blocks 25 are arranged on the chain 24, and can move along with chain 25.All offer to accommodate the accepting groove 251 of continuous-tube 200 on each grip block 25.When continuous tube injection head 100 clamping continuous-tube 200, continuous-tube 200 is positioned at the accepting groove 251 of grip block.
See also Fig. 5, Fig. 6 and Fig. 7, loading beam 26 is arranged in the 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 a plurality of clamp arm 263.Biside plate 264 and 266 relatively is fixed on the 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.A plurality of clamp arms 263 are fixed on the substrate 262, and two ends stretch out housing 10, clamp fluid cylinder 40 to connect.
See also Fig. 8, two roll assemblies 27 are sheathed on respectively on two pressing plates 261, can rotate around two pressing plates 261 under the effect of external force.Each roll assembly 27 comprises a plurality of rollers 271, a plurality of bearing pin 273 and a plurality of junction plate 275.Offer axially extending bore on the roller 271, a plurality of rollers 271 are arranged in annular side by side.A plurality of bearing pins 273 pass respectively axially extending bore, and are gapped between bearing pin 273 and the roller 271.The two ends of each junction plate 275 are articulated in respectively the end of two adjacent bearing pins 273, so that roll assembly 27 is chain.When roll assembly 27 was sheathed on the pressing plate 261, part roller 271 was 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 also is 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 and be connected with clamp arm 263 on the loading beam 26 respectively, in order to drive two loading beams 26 to close or away from direction on move.
When hoist continuous-tube 200 or when injecting continuous-tube 200 to the down-hole of need, at first, start and clamp fluid cylinder 40, so that two loading beams 26 are to the direction motion near continuous-tube 200, pressing plate 261 by loading beam 26 promotes roll assemblies 27 and contacts with grip block 25, and active force is delivered to from the pressing plate 261 of loading beam 26 on the external surface of roller 271 of roll assembly 27, is directly delivered on the grip block 25 again, between grip block 25 and continuous-tube 200, producing enough large frictional force, and keep this state; Then, start two drivers 23, so that two drive sprockets, 21 backward rotation, drive chain 24 and carry out loopy moving, inject or hoist thereby drive grip block 25 clamping continuous-tubes 200, meanwhile, roll assembly 27 with the effect of the frictional force of grip block 25 under, namely can rotate around pressing plate 261, also can so that the roller 271 of roll assembly 27 rotate around bearing pin 273.
The pressing plate 261 of the active force of the clamping fluid cylinder 40 of above-mentioned continuous tube injection head 100 by loading beam 26 is delivered on the external surface of roller 271 of roll assembly 27, then be directly delivered on the grip block 25, and, roll assembly 27 with the effect of the frictional force of grip block 25 under, namely can rotate around pressing plate 261, also can so that 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. continuous tube injection head that is used for the 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 in a plurality of grip blocks on the 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 a plurality of rollers; Described at least one roll assembly is around described loading beam loopy moving the time, and described a plurality of 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 the described driven sprocket, rotates and drives described chain and carry out loopy moving thereby described driver is used for driving described drive sprocket.
3. continuous tube injection head as claimed in claim 1 is characterized in that: convex with pressing plate on the described loading beam, described at least one roll assembly is sheathed on the described pressing plate and can be around described pressing plate loopy moving.
4. continuous tube injection head as claimed in claim 3, it is characterized in that: be fixed with clamp arm on the described loading beam, the two ends of described clamping fluid cylinder are fixed on the described clamp arm.
5. continuous tube injection head as claimed in claim 3, it is characterized in that: the number of described roll assembly is two, and the number of described pressing plate also is 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 the roller and a plurality of junction plates hinged with two adjacent rollers.
7. continuous tube injection head as claimed in claim 6 is characterized in that: two ends were fixed on the described junction plate after described bearing pin passed described roller, and are gapped between described bearing pin and the 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 relatively is fixed on the described substrate, and described pressing plate is fixedly connected with described biside plate, and described at least one roll assembly is sheathed on the described pressing plate.
9. continuous tube injection head as claimed in claim 8, it is characterized in that: described loading beam also comprises clamp arm, described clamp arm is fixed on the 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 |
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| Publication Number | Publication Date |
|---|---|
| CN102996083A true CN102996083A (en) | 2013-03-27 |
| CN102996083B CN102996083B (en) | 2014-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110264185.3A Active CN102996083B (en) | 2011-09-08 | 2011-09-08 | Continuous tube injection head |
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| CN (1) | CN102996083B (en) |
Cited By (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 |
| CN107100569A (en) * | 2017-06-23 | 2017-08-29 | 西南石油大学 | A kind of Dual Implantations head coiled tubing unit |
| CN111829944A (en) * | 2019-04-15 | 2020-10-27 | 中国石油天然气集团有限公司 | Injection head clamping block clamping performance test device |
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| CN201292786Y (en) * | 2008-11-24 | 2009-08-19 | 中国石油天然气集团公司 | Continuous tube chain clamping device |
| US20090250205A1 (en) * | 2005-03-30 | 2009-10-08 | Sietse Jelle Koopmans | Coiled Tubing Injector Head |
| 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 |
-
2011
- 2011-09-08 CN CN201110264185.3A patent/CN102996083B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090250205A1 (en) * | 2005-03-30 | 2009-10-08 | Sietse Jelle Koopmans | Coiled Tubing Injector Head |
| 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 |
Cited By (6)
| 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 |
| CN107100569A (en) * | 2017-06-23 | 2017-08-29 | 西南石油大学 | A kind of Dual Implantations head coiled tubing unit |
| CN107100569B (en) * | 2017-06-23 | 2019-04-05 | 西南石油大学 | A kind of Dual Implantations head coiled tubing unit |
| CN111829944A (en) * | 2019-04-15 | 2020-10-27 | 中国石油天然气集团有限公司 | Injection head clamping block clamping performance test device |
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| Publication number | Publication date |
|---|---|
| CN102996083B (en) | 2014-11-12 |
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