CN103510892A - Fixing structure capable of fast replacing clamping block for coiled tubing injection head - Google Patents
Fixing structure capable of fast replacing clamping block for coiled tubing injection head Download PDFInfo
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- CN103510892A CN103510892A CN201210219508.1A CN201210219508A CN103510892A CN 103510892 A CN103510892 A CN 103510892A CN 201210219508 A CN201210219508 A CN 201210219508A CN 103510892 A CN103510892 A CN 103510892A
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- boss
- grip block
- injection head
- fixed structure
- groove
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Abstract
The invention discloses a fixing structure capable of fast replacing clamping block for a coiled tubing injection head. The fixing structure comprises a bracket and the clamping block, and the bracket comprises an upper surface, lateral surfaces on the two sides of the upper surface and the lateral end faces at the two ends. The upper surface is provided with a first boss and a groove, at least one lateral surface is provided with a second boss, a spring sheet is arranged on the groove, the clamping block comprises a body, a clamping face is arranged on one side of the body, the end portion of the other side of the body extends to form a connection portion, a third boss is arranged on the connection portion, the end face of the other side of the body is arranged on the upper surface and is located between the first boss and the spring sheet, and the third boss is located below the second boss. According to the fixing structure capable of fast replacing the clamping block for the coiled tubing injection head, fast replacement of the clamping block is achieved, an elastic cushion is added in the middle of the clamping block to compensate for nonuniformity of contact between continuous tubing and the clamping block, generated by continuous tubing curving and machining errors.
Description
Technical field
The present invention relates to continuous-tube operation field, oil field, particularly the fixed structure of fast changeable grip block for a kind of continuous tube injection head.
Background technology
Coiled tubing unit is as the Core equipment of continuous-tube operation, and its basic function is in production tube or sleeve pipe, to be lowered to and to trip out continuous-tube when continuous-tube operation, and the continuous-tube tripping out is wrapped on cylinder so that migration.Injection head be by two can synchronous positive and negative running fluid motor-driven, grip block is arranged on the bearing pin of chain, when clamping fluid cylinder promotion grip block clamping continuous-tube, by injection head fluid motor-driven chain, make chain along continuous-tube axially-movable, grip block drives continuous-tube to move with identical speed with the frictional force between continuous-tube.The topmost two kinds of forms of grip block are dismountable grip block that monolithic grip block and screw are installed at present, wherein monolithic grip block needs integral body that chain is taken apart in the situation that grip block is impaired, unload grip block and new grip block is installed, then chain is installed.Dismountable grip block that screw is installed is easy to operate comparatively speaking.
In realizing process of the present invention, inventor finds that prior art at least exists following problem: use monolithic grip block that grip block is changed complicated, time-consuming, need to be by special installation, general workman cannot complete this operation at Oil Field, and replacement cost is high; Dismountable grip block that screw is installed, when service time, longer grip block got rusty, and exists that in the situation of greasy dirt, to carry out the dismounting of screw also more difficult.In addition, if there is situations such as grip block mismachining tolerance and continuous-tube bendings, can cause contacting inhomogeneously between grip block and continuous-tube, clamp position is bad.
Summary of the invention
The object of the embodiment of the present invention is the defect for above-mentioned prior art, and the fixed structure of the continuous tube injection head of the quick-replaceable grip block of a kind of energy with fast changeable grip block is provided.
The technical scheme that the present invention takes is to achieve these goals: the fixed structure of fast changeable grip block for a kind of continuous tube injection head, it is characterized in that, comprise bracket and grip block, described bracket comprises a upper surface, be arranged on the side surface of described upper surface both sides and the side end face at two ends, described upper surface is provided with the first boss and groove, at least one side surface is provided with the second boss, on described groove, spring leaf is installed, described grip block comprises body, described body one side is provided with clamping face, the end of opposite side is extended with connecting portion, described connecting portion is provided with the 3rd boss, the end face of described body opposite side is arranged on described upper surface, between described the first boss and spring leaf, described the 3rd boss is positioned at described the second boss below.
Between the end face of described body opposite side and described upper surface, be provided with elastomeric pad.
Described elastomeric pad is provided with opening, and described the first boss is positioned at described opening.
Described the first boss is rectangle boss, and described opening is oblong openings.
Described elastomeric pad is provided with at least one aperture.
Further, on two described side surfaces, be equipped with the second boss, the Liang Ge end of described body opposite side is all extended with connecting portion, and the 3rd boss on two connecting portions arranges in opposite directions, and the 3rd boss on described connecting portion lays respectively at the below of corresponding the second boss.
Further, a side surface is provided with three the second boss, between adjacent the second boss, is provided with space, and another side surface is arranged with three the second boss, and described connecting portion is provided with three boss corresponding with all the second boss.
Described groove is a rectangle groove, and described spring leaf two ends are straight section, and centre is arc, and two straight sections of described spring leaf insert in described groove.
Described groove is that two spacing distances arrange two rectangle grooves, and described spring leaf two ends are straight section, and centre is arc, and two straight sections of described spring leaf insert respectively in corresponding groove.
The side end face at described two ends is respectively provided with a plate, between described junction plate, be provided with dividing plate, described junction plate is provided with dividing plate the first through hole communicating, between described junction plate and dividing plate, by the first through hole, be used for installing roller, described in each, junction plate is provided with the second through hole of perforation, the center line of the center line of described the first through hole and described the second through hole is parallel to each other, and described the second through hole is two.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
Bracket of the present invention is arranged on chain hinge pin, bracket and grip block are respectively with the boss that can coordinate and space, during installation, alignd and pressed in space between the first boss of the 3rd boss on grip block and bracket, then moving to the 3rd boss aligns with the second boss, the in-built upper spring sheet of groove at bracket, comes off to limit grip block.Because the grip block of continuous tube injection head is consumable accessory, need to often change, therefore, when grip block weares and teares, new grip block is dismantled and changed to grip block from bracket, cushion is arranged in the middle of bracket and grip block.Adopt the fixed structure of grip block of the present invention, realized the quick-replaceable of grip block, and between grip block, increase cushion and compensate because continuous-tube is crooked and the continuous-tube of mismachining tolerance generation and the inhomogeneities of grip block Contact.
Accompanying drawing explanation
Fig. 1 is the structural representation of the fixed structure of fast changeable grip block for a kind of continuous tube injection head that provides of the embodiment of the present invention;
Fig. 2 is that A-A in Fig. 1 is to sectional view;
Fig. 3 is the structural representation of the bracket that provides of the embodiment of the present invention;
Fig. 4 is the structural representation of the grip block that provides of the embodiment of the present invention;
Fig. 5 is the structural representation of the elastomeric pad that provides of the embodiment of the present invention;
Fig. 6 is the assembly structure schematic diagram of the grip block that provides of the embodiment of the present invention.
1-bracket, 2-elastomeric pad, 3-spring leaf, 4-grip block, 5-opening, 6-the first boss, 7-groove, 8-the second boss, 9-space, 10-the 3rd boss, 11-upper surface ，12-side end face, 13-body, 14-clamping face, 15-connecting portion, 16-side surface, 17-aperture, 18-junction plate, 19-the first through hole, 20-the second through hole, 21-dividing plate, 22 rollers.
The specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the fixed structure of fast changeable grip block for a kind of continuous tube injection head, comprise bracket 1 and grip block 4, bracket 1 comprises a upper surface 11, be arranged on the side end face 12 at the side surface 16Ji two ends of upper surface 11 both sides, upper surface 11 is provided with the first boss 6 and groove 7, at least one side surface 16 is provided with the second boss 8, spring leaf 3 is installed on groove 7, grip block 4 comprises body 13, body 13 1 sides are provided with clamping face 14, the end of opposite side is extended with connecting portion 15, connecting portion 15 is provided with the 3rd boss 10, the end face of body 13 opposite sides is arranged on upper surface 9, between the first boss 6 and spring leaf 3, the 3rd boss 10 is positioned at the second boss 8 belows.
In structure of the present invention, clamping face is preferably circular arc, can be also V-arrangement, and grip block is fixed between the first boss and spring leaf.Adopt structure of the present invention, grip block can be realized quick-replaceable, simple and quick.
Referring to Fig. 1 and Fig. 2, between the end face of body 13 opposite sides and upper surface 11, be provided with elastomeric pad 2.
In the middle of grip block, increase elastomeric pad and compensated continuous-tube crooked due to continuous-tube and that mismachining tolerance produces and the inhomogeneities of grip block Contact.
Referring to Fig. 5, elastomeric pad 2 is provided with opening 5, the first boss 6 and is positioned at opening 5.The first boss 6 is rectangle boss, and opening 5 is oblong openings.Elastomeric pad 2 is provided with at least one aperture 17.
Elastomeric pad can be processed by polyurethane material, and the oblong openings that elastomeric pad is offered can be enclosed within on rectangular first boss of bracket, can prevent that elastomeric pad from coming off, and the aperture of setting provides the space of elastomeric pad compression.
Referring to Fig. 3 and Fig. 4, on two side surfaces 16, be equipped with the second boss 8, the Liang Ge end of body 13 opposite sides is all extended with connecting portion 15, and the 3rd boss 10 on connecting portion 15 lays respectively at the below of corresponding the second boss 8.As preferably, a side surface 16 is provided with three the second boss 8, between adjacent the second boss 8, is provided with space 9, and another side surface is arranged with three the second boss 8, and connecting portion 15 is provided with three boss 10 corresponding with the second boss 8.
Symmetrically arranged the second boss and the 3rd boss are used in conjunction with, and the 3rd boss on connecting portion arranges in opposite directions, and is stuck in the below of corresponding the second boss, make the fixing more firm of grip block.
Referring to Fig. 1 and Fig. 3, groove 7 is a rectangle groove, and spring leaf 3 two ends are straight section, and centre is arc, and two straight sections of spring leaf 3 insert in groove 7.Spring leaf 3 is processed as arcuate structure by spring steel, and two ends are straight section, and straight section can insert in the groove of bracket.Groove 7 can be also that two spacing distances arrange two rectangle grooves, and during use, the straight section of spring leaf 3 one end inserts in a groove, and another straight section inserts in another groove, uses spring leaf, conveniently from groove, takes out, and is convenient to the handling of grip block.
Referring to Fig. 3 and Fig. 6, the side end face 12 at the two ends of bracket 1 is respectively provided with a plate 18, between junction plate 18, be provided with dividing plate 21, junction plate 18 is provided with dividing plate 21 the first through hole 19 communicating, between junction plate 18 and dividing plate 21 by the first through hole 19 for roller 22 is installed, on the first through hole 19, wear bearing pin, two rollers 22 are fixed between junction plate 18 and dividing plate 21, each junction plate 18 is provided with the second through hole 20 of perforation, the center line of the center line of the first through hole 19 and the second through hole 20 is parallel to each other, the second through hole 20 is two, can be connected on the bearing pin of injection head chain by two the second through holes 20 on bracket 1.
Installation of the present invention and unloading process:
During installation first by bracket 1 by two vertical through holes that arrange in two through hole 19(Fig. 1) be connected on the bearing pin of injection head chain, then the oblong openings on elastomeric pad 25 is packed on rectangle the first boss 6 on bracket 1, make upper surface 11 laminatings of elastomeric pad and bracket 1, the 3rd boss 10 of grip block 4 is put into the space 9 between the first boss 6 of bracket 1 both sides, and grip block 4 and elastomeric pad 2 are fitted, mobile grip block 4 makes the first boss 6 side laminatings on grip block side and bracket 1, arc-shaped spring piece 3 is installed to the rectangle groove 7 of bracket 1 is interior blocks grip block 4.During replacing, pull down spring leaf 3, mobile grip block 4 makes the 3rd boss 10 align with the second boss 8 Jian spaces 9, takes out grip block 4, and new grip block 4 is installed on bracket 1.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. the fixed structure of fast changeable grip block for a continuous tube injection head, it is characterized in that, comprise bracket and grip block, described bracket comprises a upper surface, be arranged on the side surface of described upper surface both sides and the side end face at two ends, described upper surface is provided with the first boss and groove, at least one side surface is provided with the second boss, on described groove, spring leaf is installed, described grip block comprises body, described body one side is provided with clamping face, the end of opposite side is extended with connecting portion, described connecting portion is provided with the 3rd boss, the end face of described body opposite side is arranged on described upper surface, between described the first boss and spring leaf, described the 3rd boss is positioned at described the second boss below.
2. the fixed structure of fast changeable grip block for continuous tube injection head according to claim 1, is characterized in that, between the end face of described body opposite side and described upper surface, is provided with elastomeric pad.
3. the fixed structure of fast changeable grip block for continuous tube injection head according to claim 2, is characterized in that, described elastomeric pad is provided with opening, and described the first boss is positioned at described opening.
4. the fixed structure of fast changeable grip block for continuous tube injection head according to claim 1, is characterized in that, described the first boss is rectangle boss, and described opening is oblong openings.
5. the fixed structure with fast changeable grip block according to the continuous tube injection head described in claim 2 or 3, is characterized in that, described elastomeric pad is provided with at least one aperture.
6. the fixed structure of fast changeable grip block for continuous tube injection head according to claim 1, it is characterized in that, on two described side surfaces, be equipped with the second boss, the Liang Ge end of described body opposite side is all extended with connecting portion, the 3rd boss on two connecting portions arranges in opposite directions, and the 3rd boss on described connecting portion lays respectively at the below of corresponding the second boss.
7. the fixed structure of fast changeable grip block for continuous tube injection head according to claim 6, it is characterized in that, a side surface is provided with three the second boss, between adjacent the second boss, be provided with space, another side surface is arranged with three the second boss, and described connecting portion is provided with three boss corresponding with all the second boss.
8. the fixed structure of fast changeable grip block for continuous tube injection head according to claim 1, it is characterized in that, described groove is a rectangle groove, and described spring leaf two ends are straight section, centre is arc, and two straight sections of described spring leaf insert in described groove.
9. the fixed structure of fast changeable grip block for continuous tube injection head according to claim 1, it is characterized in that, described groove is that two spacing distances arrange two rectangle grooves, described spring leaf two ends are straight section, centre is arc, and two straight sections of described spring leaf insert respectively in corresponding groove.
10. the fixed structure of fast changeable grip block for continuous tube injection head according to claim 1, it is characterized in that, the side end face at described two ends is respectively provided with a plate, between described junction plate, be provided with dividing plate, described junction plate is provided with dividing plate the first through hole communicating, between described junction plate and dividing plate, by the first through hole, be used for installing roller, described in each, junction plate is provided with the second through hole of perforation, the center line of the center line of described the first through hole and described the second through hole is parallel to each other, and described the second through hole is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210219508.1A CN103510892A (en) | 2012-06-27 | 2012-06-27 | Fixing structure capable of fast replacing clamping block for coiled tubing injection head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210219508.1A CN103510892A (en) | 2012-06-27 | 2012-06-27 | Fixing structure capable of fast replacing clamping block for coiled tubing injection head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103510892A true CN103510892A (en) | 2014-01-15 |
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ID=49894257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210219508.1A Pending CN103510892A (en) | 2012-06-27 | 2012-06-27 | Fixing structure capable of fast replacing clamping block for coiled tubing injection head |
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|---|---|
| CN (1) | CN103510892A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4735270A (en) * | 1984-09-04 | 1988-04-05 | Janos Fenyvesi | Drillstem motion apparatus, especially for the execution of continuously operational deepdrilling |
| US6189609B1 (en) * | 1998-09-23 | 2001-02-20 | Vita International, Inc. | Gripper block for manipulating coil tubing in a well |
| CN201292786Y (en) * | 2008-11-24 | 2009-08-19 | 中国石油天然气集团公司 | Continuous tube chain clamping device |
| 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 |
| CN102199998A (en) * | 2011-06-16 | 2011-09-28 | 中国石油天然气股份有限公司 | Injection head device of continuous oil pipe |
| CN102259663A (en) * | 2010-05-27 | 2011-11-30 | 北汽福田汽车股份有限公司 | Plug-in type liquid storage tank, hydraulic power-assisted steering system and automobile |
| CN202832310U (en) * | 2012-06-27 | 2013-03-27 | 中国石油天然气集团公司 | Fixing structure with clamping blocks capable of being replaced quickly for coiled pipe injection head |
-
2012
- 2012-06-27 CN CN201210219508.1A patent/CN103510892A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4735270A (en) * | 1984-09-04 | 1988-04-05 | Janos Fenyvesi | Drillstem motion apparatus, especially for the execution of continuously operational deepdrilling |
| US6189609B1 (en) * | 1998-09-23 | 2001-02-20 | Vita International, Inc. | Gripper block for manipulating coil tubing in a well |
| CN201292786Y (en) * | 2008-11-24 | 2009-08-19 | 中国石油天然气集团公司 | Continuous tube chain clamping device |
| CN102259663A (en) * | 2010-05-27 | 2011-11-30 | 北汽福田汽车股份有限公司 | Plug-in type liquid storage tank, hydraulic power-assisted steering system and automobile |
| 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 |
| CN102199998A (en) * | 2011-06-16 | 2011-09-28 | 中国石油天然气股份有限公司 | Injection head device of continuous oil pipe |
| CN202832310U (en) * | 2012-06-27 | 2013-03-27 | 中国石油天然气集团公司 | Fixing structure with clamping blocks capable of being replaced quickly for coiled pipe injection head |
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Application publication date: 20140115 |