CN220378222U - Clamping device for continuous oil pipe injection head - Google Patents
Clamping device for continuous oil pipe injection head Download PDFInfo
- Publication number
- CN220378222U CN220378222U CN202321882360.XU CN202321882360U CN220378222U CN 220378222 U CN220378222 U CN 220378222U CN 202321882360 U CN202321882360 U CN 202321882360U CN 220378222 U CN220378222 U CN 220378222U
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- clamping block
- spring pin
- pin
- spring
- clamping
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- 238000002347 injection Methods 0.000 title claims abstract description 14
- 239000007924 injection Substances 0.000 title claims abstract description 14
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000013016 damping Methods 0.000 claims description 2
- 230000035939 shock Effects 0.000 description 5
- 239000000306 component Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Supports For Pipes And Cables (AREA)
Abstract
The utility model relates to a clamping device for a continuous oil pipe injection head, which comprises the following components: the clamping block base is provided with a clamping block, and the top of the clamping block is provided with a semicircular groove matched with the size of the continuous oil pipe; rectangular bosses are respectively arranged at the upper end and the lower end of the bottom of the clamping block; the upper end and the lower end of the clamping block base are respectively provided with a rectangular groove for installing a rectangular boss of the clamping block; the spring pin assembly locks and fixes the clamping block on the clamping block base. According to the clamping device for the continuous oil pipe injection head, the clamping blocks are connected with the clamping block base through the U-shaped clamping grooves, so that heavy load can be borne, and enough sliding quantity is reserved between the clamping blocks relative to the clamping block base, so that floating clamping of the continuous oil pipe can be realized, and the surface of the continuous oil pipe can be better protected; the clamping block realizes quick assembly disassembly through four spring pins with inclined planes, reduces labor intensity of workers, and improves assembly disassembly efficiency of the clamping block.
Description
Technical Field
The utility model belongs to the technical field of petroleum machinery, and particularly relates to a clamping device for a continuous oil pipe injection head.
Background
The injection head is a key component for entering and exiting the coiled tubing in the coiled tubing operation equipment, the clamping devices are core components used for clamping and continuously conveying the coiled tubing on the injection head, tens of groups of clamping devices are generally and uniformly arranged on two groups of closed annular heavy-duty chains which are oppositely arranged, the clamping devices of the groups corresponding to the two sides clamp the coiled tubing through the injection head clamping system, friction force is generated, and the continuous rotation of the chains is driven by the power system to convey the coiled tubing.
The clamping device generally comprises clamping blocks, clamping block bases, shock absorption pads and the like, the contact surface of the clamping blocks and the coiled tubing is generally semicircular and matched with the diameter of the coiled tubing, so that the clamping blocks with corresponding sizes are required to be replaced frequently for the coiled tubing with different sizes, the connection between the clamping blocks and the clamping block bases is required to be simple and reliable, the heavy load can be borne, and the clamping device is convenient and efficient to assemble, disassemble and replace.
The Chinese patent with the application number of CN201510360139.1 provides a clamping device for a coiled tubing injection head, which comprises a clamping block, a pressing plate, a pin shaft and a clamping block bracket, wherein clamping block mounting surfaces are arranged on two sides of the bottom of the clamping block, and a clamping groove is formed in the middle of each clamping block mounting surface; two bosses corresponding to the clamping grooves are arranged on the top surface of the clamping block bracket; the boss is vertically provided with a pin hole, the pin shaft is installed from the bottom of the pin hole, the lower end of the pin shaft is provided with a spring, the upper end of the pin shaft extends out from the upper port of the pin hole and is connected with a pressing plate, the pressing plate is tensioned by the spring through the pin shaft, and the pressing plate presses the mounting surfaces of the clamping blocks on two sides of the clamping block. The disassembly and assembly convenience is improved, and the time is saved.
The defects still exist in the actual use: the clamping blocks still damage the coiled tubing, because of the limitation of the disassembly and assembly space, simultaneously, because the spring tightens the pressing plates through the pin shafts, the pressing plates compress the clamping blocks on two sides of the clamping blocks, the clamping blocks are fixed by means of the elasticity of the spring, the lifting pin shafts need larger external force, and the disassembly and assembly operation of the clamping blocks are still difficult.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides the coiled tubing injection head clamping device which has a simple structure and is convenient to operate, floating clamping can be realized, and the surface of the coiled tubing can be better protected.
The technical scheme adopted by the utility model is as follows:
a coiled tubing injector head clamping device comprising: the clamping block base is provided with a clamping block, and a damping pad is arranged between the clamping block base and the clamping block;
a semicircular groove matched with the size of the continuous oil pipe is formed in the top of the clamping block;
rectangular bosses are respectively arranged at the upper end and the lower end of the bottom of the clamping block;
the upper end and the lower end of the clamping block base are respectively provided with a rectangular groove for installing a rectangular boss of the clamping block;
the length of the rectangular boss of the clamping block is smaller than the length of the groove of the base of the clamping block;
blind holes are formed in two end faces of the rectangular lug boss of the clamping block; mounting holes are formed at two ends of the rectangular groove of the clamping block base;
the mounting hole is internally provided with a spring pin component used for locking and fixing the clamping block on the clamping block base.
Preferably, the spring pin assembly includes: spring pin, spring and screw cap;
the spring pin includes: a spring pin head and a spring pin stem; the front end of the spring pin rod is provided with a spring pin inclined plane;
the inner side of the spring pin inclined plane is provided with a spring pin step;
the spring pin rod is sleeved with a threaded press cap and a spring;
the spring is arranged in the threaded press cap;
the threaded press cap is arranged between the spring pin head and the spring pin step;
the spring pin head is provided with a short fixing pin parallel to the axis of the spring pin head;
the plane formed by the short fixing pin and the axis of the spring pin corresponds to the inclined plane of the spring pin.
Preferably, the mounting hole is a step hole, and the outer end of the step hole is provided with threads; a spring pin and a spring are arranged in the step hole, a threaded press cap is in threaded connection with the step hole, and the threaded press cap fixes the spring pin on the clamping block base through a compression spring;
two sides of the mounting hole for mounting the spring pin on the outer side of the clamping block base are provided with two pin holes forming an angle of 180 degrees.
Preferably, the angle between the bevel of the spring pin and the axis of the spring pin is 25 degrees to 45 degrees.
Preferably, the spring pin comprises an upper pin and a lower pin; the upper pin rod is a stepped rod, the diameter of the front end is smaller than that of the rear end, the surface of the front end is provided with external threads, and the rear end of the lower pin rod is provided with a threaded hole; the front end of the upper pin rod is in threaded connection with the lower pin rod; the front end of the upper pin rod is sleeved with a limiting gasket to form a spring pin step; the upper and lower pins secure the limit pad to the spring pin.
Compared with the prior art, the utility model has the beneficial effects that:
according to the clamping device of the continuous oil pipe injection head, the clamping blocks are connected with the clamping block base through the U-shaped clamping grooves, so that heavy load can be borne, and enough sliding quantity is reserved between the clamping blocks and the clamping block base, and the clamping blocks can have a certain sliding quantity relative to the clamping block base according to the position of the continuous oil pipe, so that floating clamping of the continuous oil pipe can be realized, and the surface of the continuous oil pipe can be better protected; the installation, the dismantlement direction of grip block and grip block base are perpendicular with the spring pin axis, and the spring in the spring pin subassembly does not need to provide too big clamp force, consequently, mentions the spring pin and does not need too big external force, and the grip block realizes quick assembly disassembly through four spring pins in area inclined plane, improves the convenience of operation, reduces workman intensity of labour, improves grip block dismouting efficiency.
Drawings
FIG. 1 is a schematic perspective view of a coiled tubing injector head clamping device of the present utility model;
FIG. 2 is a schematic perspective view of a clamping block of the clamping device for the coiled tubing injector head of the present utility model;
FIG. 3 is a schematic bottom perspective view of a clamping block of the coiled tubing injector clamping device of the present utility model;
FIG. 4 is a schematic perspective view of a clamp block base of the coiled tubing injector clamp of the present utility model;
FIG. 5 is a schematic view of the exploded structure of the clamp block base and spring pin of the coiled tubing injector clamp of the present utility model;
FIG. 6 is a schematic view of the spring pin of the coiled tubing injector head clamping device of the present utility model in partial cross-section.
The main component symbols in the drawings illustrate:
in the figure:
1. clamping blocks, 101, rectangular bosses, 102, blind holes, 103, long planes of the bosses, 104, semicircular grooves, 2, clamping block bases, 201, rectangular grooves, 202, long planes of the bases, 203, mounting holes, 204, short fixing pin holes, 3, shock pads, 4, spring pin assemblies, 401, spring pins, 402, threaded press caps, 403, springs, 4011, spring pin inclined planes, 4012, spring pin steps, 4013 and short fixing pins.
Detailed Description
The utility model is described in detail below with reference to the attached drawings and examples:
1-6, a coiled tubing injector head clamping apparatus comprising: the clamping block comprises a clamping block base 2, wherein a clamping block 1 is arranged on the clamping block base 2, and a shock pad 3 is arranged between the clamping block base 2 and the clamping block 1;
a semicircular groove 104 matched with the size of the continuous oil pipe is formed in the top of the clamping block;
rectangular bosses 101 are respectively arranged at the upper end and the lower end of the bottom of the clamping block;
the upper end and the lower end of the clamping block base are respectively provided with a rectangular groove 201 for installing a rectangular boss of the clamping block;
two long boss planes 103 opposite to the inner sides of two rectangular bosses of the clamping block and two long base planes 202 opposite to the inner sides of two grooves of the base of the clamping block are matched surfaces, the fit clearance is small, and the length of the rectangular bosses of the clamping block is smaller than the length of the grooves of the base of the clamping block;
the clamping blocks can move left and right on the clamping block base, and the moving gap is enough to compensate the moving amount required for centering when clamping the coiled tubing, so that floating clamping of the clamping blocks on the coiled tubing is realized, and the outer surface of the coiled tubing is better protected.
Blind holes 102 are formed in two end faces of the rectangular lug boss of the clamping block; mounting holes 203 are formed at two ends of the rectangular groove of the clamping block base; the number of blind holes and mounting holes is four.
The mounting hole is internally provided with a spring pin component used for locking and fixing the clamping block on the clamping block base.
Preferably, the spring pin assembly includes: a spring pin 401, a spring 403 and a threaded press cap 402;
the spring pin includes: a spring pin head and a spring pin stem; the front end of the spring pin rod is provided with a spring pin inclined plane 4011; the tail end of the spring pin inserted into the blind hole of the clamping block is provided with an inclined plane;
the spring pin rod comprises an upper pin rod and a lower pin rod; the upper pin rod is a stepped rod, the diameter of the front end is smaller than that of the rear end, the surface of the front end is provided with external threads, and the rear end of the lower pin rod is provided with a threaded hole; the front end of the upper pin rod is in threaded connection with the lower pin rod; the front end of the upper pin rod is sleeved with a limiting gasket to form a spring pin step 4012; the upper and lower pins secure the limit pad to the spring pin.
A spring pin step 4012 is arranged on the inner side of the spring pin inclined plane;
the spring pin rod is sleeved with a threaded press cap 402 and a spring 403;
spring 403 is disposed within threaded press cap 402;
the threaded press cap is arranged between the spring pin head and the spring pin step 4012;
the spring pin head is provided with a short fixing pin 4013 parallel to its axis;
the plane formed by the short fixing pin and the axis of the spring pin corresponds to the inclined plane of the spring pin.
Preferably, the mounting hole is a step hole, and the outer end of the step hole is provided with threads; a spring pin and a spring are arranged in the step hole, a threaded press cap is in threaded connection with the step hole, and the threaded press cap fixes the spring pin on the clamping block base through a compression spring;
the middle step is used for supporting one end of the spring and pressing the spring pin together with the threaded press cap through the elastic force of the spring; the spring pin is prevented from withdrawing when in operation;
two sides of the mounting hole for mounting the spring pin on the outer side of the clamping block base are provided with two pin holes forming an angle of 180 degrees.
The pin hole is used for inserting a short fixing pin, namely the spring pin has two working positions;
when the inclined plane of the tail end of each spring pin faces one side of the clamping block, the clamping block is in a locking state;
when the spring pin is lifted and rotated 180 degrees, the inclined surface of the tail end of the spring pin faces the base of the clamping block, and at the moment, the clamping block can be quickly detached from the spring pin;
when the clamping block is installed again, the spring pin is rotated 180 degrees to enable the inclined plane to face the clamping block; the structure realizes the quick assembly disassembly of the clamping blocks, and has higher disassembly and installation efficiency.
The head of the spring pin is provided with anti-skid patterns, so that the spring pin is more convenient to lift; the head of the spring pin is provided with a pull ring, the pull ring is in threaded connection with a pull ring hole arranged on the head of the spring pin, and when the injection head clamping device is in a working state, the pull ring is in a flat state; when the clamping block is installed and disassembled, the lifting pull ring pulls the spring pin out of the installation hole for a certain length, the short fixing pin is separated from the short fixing pin hole, the spring pin rotates 180 degrees, and the short fixing pin is inserted into the short fixing pin hole at the other side of the installation hole.
Preferably, a shock pad is arranged between the clamping block and the clamping block base; the shock pad is used for absorbing impact and vibration when clamping and conveying the coiled tubing, is made of organic polymer materials, is of an I-shaped structure and is provided with a plurality of exhaust holes in the middle.
According to the clamping device for the continuous oil pipe injection head, the clamping blocks are connected with the clamping block base through the U-shaped clamping grooves, so that heavy load can be borne, and enough sliding quantity is reserved between the clamping blocks relative to the clamping block base, so that floating clamping of the continuous oil pipe can be realized, and the surface of the continuous oil pipe can be better protected; the clamping block realizes quick assembly disassembly through four spring pins with inclined planes, reduces labor intensity of workers, and improves assembly disassembly efficiency of the clamping block.
The above description is only of the preferred embodiment of the present utility model, and is not intended to limit the structure of the present utility model in any way. Any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model fall within the technical scope of the present utility model.
Claims (4)
1. The utility model provides a coiled tubing injection head clamping device which characterized in that:
comprising the following steps: the clamping block base is provided with a clamping block, and a damping pad is arranged between the clamping block base and the clamping block;
a semicircular groove matched with the size of the continuous oil pipe is formed in the top of the clamping block;
rectangular bosses are respectively arranged at the upper end and the lower end of the bottom of the clamping block;
the upper end and the lower end of the clamping block base are respectively provided with a rectangular groove for installing a rectangular boss of the clamping block;
the length of the rectangular boss of the clamping block is smaller than that of the rectangular groove of the base of the clamping block;
blind holes are formed in the two end faces of the rectangular boss of the clamping block in the length direction;
the center line of the blind hole is perpendicular to the center line of the semicircular groove;
mounting holes corresponding to the blind holes are formed in the two ends of the rectangular groove of the clamping block base;
a spring pin assembly used for locking and fixing the clamping block on the clamping block base is arranged in the mounting hole;
the spring pin assembly includes: spring pin, spring and screw cap;
the spring pin includes: a spring pin head and a spring pin stem; the front end of the spring pin rod is provided with a spring pin inclined plane;
the inner side of the spring pin inclined plane is provided with a spring pin step;
the spring pin rod is sleeved with a threaded press cap and a spring;
the spring is arranged in the threaded press cap;
the threaded press cap is arranged between the spring pin head and the spring pin step;
the spring pin head is provided with a short fixing pin parallel to the axis of the spring pin head;
the plane formed by the short fixing pin axis and the spring pin axis corresponds to the spring pin inclined plane.
2. The coiled tubing injector head clamping device of claim 1, wherein:
the mounting hole is a step hole, and the outer end of the step hole is provided with threads; the threaded pressing cap is in threaded connection with the step hole, and the threaded pressing cap fixes the spring pin on the clamping block base through the compression spring;
two pin holes are formed in two sides of the mounting hole, and the two pin holes form an angle of 180 degrees with each other.
3. The coiled tubing injector head clamping device of claim 1, wherein:
the inclined plane of the spring pin and the axis of the spring pin form an included angle of 25-45 degrees.
4. The coiled tubing injector head clamping device of claim 1, wherein:
the spring pin rod comprises an upper pin rod and a lower pin rod; the upper pin rod is a stepped rod, the diameter of the front end is smaller than that of the rear end, the surface of the front end is provided with external threads, and the rear end of the lower pin rod is provided with a threaded hole; the front end of the upper pin rod is in threaded connection with the lower pin rod; the front end of the upper pin rod is sleeved with a limiting gasket to form a spring pin step; the upper and lower pins secure the limit pad to the spring pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321882360.XU CN220378222U (en) | 2023-07-18 | 2023-07-18 | Clamping device for continuous oil pipe injection head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321882360.XU CN220378222U (en) | 2023-07-18 | 2023-07-18 | Clamping device for continuous oil pipe injection head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220378222U true CN220378222U (en) | 2024-01-23 |
Family
ID=89565230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321882360.XU Active CN220378222U (en) | 2023-07-18 | 2023-07-18 | Clamping device for continuous oil pipe injection head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220378222U (en) |
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2023
- 2023-07-18 CN CN202321882360.XU patent/CN220378222U/en active Active
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| GR01 | Patent grant |