CN212514054U - Experimental device for measuring tangential shear strength of pressurizing pipe fitting - Google Patents
Experimental device for measuring tangential shear strength of pressurizing pipe fitting Download PDFInfo
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- CN212514054U CN212514054U CN202020898847.7U CN202020898847U CN212514054U CN 212514054 U CN212514054 U CN 212514054U CN 202020898847 U CN202020898847 U CN 202020898847U CN 212514054 U CN212514054 U CN 212514054U
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- pipe fitting
- supporting seat
- motor
- upper portion
- shear strength
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- 230000008093 supporting effect Effects 0.000 claims abstract description 69
- 238000005259 measurement Methods 0.000 abstract description 11
- 238000010008 shearing Methods 0.000 abstract description 9
- 238000003466 welding Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a design of tubular product stress test device, concretely relates to survey experimental apparatus of pressurization pipe fitting tangential shear strength, include: the base, first supporting seat, the second supporting seat, first anchor clamps, the second anchor clamps, loading system, including a motor, an end cap, a controller, and a cover plate, lead screw and silk piece, the second supporting seat is gantry structure, the motor sets up on second supporting seat upper portion, the lead screw is connected to the motor output, the silk piece is connected to the lead screw, silk piece and second anchor clamps fixed connection, still including setting up the removal supporting shoe that supports the pipe fitting on the base, it is located the left side of the ring joint of pipe fitting to remove the supporting shoe, second anchor clamps upper portion is provided with the mount pad, install the tensiometer in the mount pad, the other end of tensiometer and the crossbeam of second supporting seat are. The shearing strength of the pipe fitting welding seam under the pressure working condition can be tested, the structure is compact, the structure strength is improved, and the measurement precision is high.
Description
Technical Field
The utility model relates to a design of tubular product stress test device, concretely relates to survey experimental apparatus of pressurization pipe fitting tangential shear strength.
Background
The working environment of the composite plastic high-pressure conveying industrial pipeline is relatively severe, and the composite plastic high-pressure conveying industrial pipeline is mainly applied to the aspects of oil and gas gathering and transportation, water injection, high-pressure alcohol injection, sewage treatment and the like of oil and gas well sites or gas fields of petroleum and natural gas and ocean engineering. When the pipeline works in a vertical shaft of a well site or a gas field, the pipeline bears larger tensile force in the axial direction, the interior bears higher water injection pressure, the outer wall of the pipeline is soaked in a medium with certain temperature and corrosiveness when the pipeline works, and the complex working environment has high requirements on the pipeline manufacturing process and performance detection equipment. The coiled tubing is a high-performance tubing which has a length of several kilometers and is used for the underground operation of an oil field. When the coiled tubing is operated underground, high-pressure liquid needs to be conveyed underground, and meanwhile, the coiled tubing has use conditions of pulling, pressing, twisting and the like underground.
There has been the device that tests the shear strength of pipeline among the prior art, has disclosed a survey test device of prefabricated direct-burried insulating pipeline tangential shear strength like china CN 210037469U, including mounting panel, base and support curb plate, the mounting panel is installed through the bolt to base top one end, the support curb plate is installed through the fixed slot to the base top other end, support the curb plate top and install the casing through the screw, servo motor is installed through the mount pad to bottom one end in the casing, mounting panel top one end welding has the slide rail, the slide rail top is provided with the installing support, servo motor's output shaft runs through the casing bottom and is connected with the lead screw, lead screw outside cover is equipped with the silk piece, silk piece one end is connected with the stationary blade. Although the above structure can clamp the pipe and detect the magnitude of the pulling force, some problems still exist:
1. the pipe fitting connection interface under the pressurization condition can not be subjected to a shear strength test, and the shear strength of the pipe fitting in the working environment can not be obtained.
2. The pressure applying section cantilever is too long, the structure is not stable enough, and the measurement precision is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides an experimental apparatus for survey pressurization pipe fitting tangential shear strength can test out the shear strength of pipe fitting welding seam department under the pressure operating condition, compact structure, and compact structure has improved structural strength, and measurement accuracy is high.
The technical scheme of the utility model as follows, a shear strength for measuring ring joint department of pipe fitting, include: a base, a first supporting seat, a second supporting seat, a first clamp, a second clamp, a pressurizing mechanism, a motor, a screw rod and a screw block, the first supporting seat is arranged at the upper part of the left end of the base, the second supporting seat is arranged at the upper part of the right end of the base, the first clamp is arranged at the upper part of the first supporting seat and clamps one end of the pipe fitting, the second clamp is arranged in a suspended manner and clamps the other end of the pipe fitting, the pressurizing mechanism is communicated with the interior of the pipe fitting to inflate the pipe fitting, plugs are arranged at the two ends of the pipe fitting to prevent the gas in the pipe fitting from leaking, the second supporting seat is of a gantry structure, the motor is arranged at the upper part of the second supporting seat, the output end of the motor is connected with the screw rod, the lead screw is connected with the wire block, the wire block is fixedly connected with the second clamp, so that the tail end of the pipe fitting can move downwards under the driving of the motor, and the shearing damage to the annular welding seam of the pipe fitting is realized.
The utility model discloses still including setting up support the removal supporting shoe of pipe fitting on the base, remove the left side that the supporting shoe is located the annular seam of pipe fitting, remove the supporting shoe and remove about, be close to annular seam, cantilever length when reducing the pipe fitting installation improves measurement accuracy.
The upper portion of the second clamp is provided with a mounting seat, a tension meter is mounted in the mounting seat and connected with a cross beam of the second supporting seat, the tension meter is used for measuring applied pressure, namely shearing force received by the pipe fitting, and the tension meter can be electrically connected with a force measuring instrument, so that real-time tension values can be stored conveniently.
The utility model discloses a pressure machine is to the inside operating pressure that applys of pipe fitting, can simulate out true operational environment, is convenient for measure the anti-shear capacity of the annular seam of pipe fitting.
The gantry frame is adopted to install the motor, the lead screw, the wire block and other parts, the frame is stable, in addition, the movable supporting block is adopted to support the annular seam accessory, the structure is more stable, the measurement error caused by overlarge deformation in pipe fitting measurement is avoided, and the measurement precision is high.
Preferably, the upper part of the movable supporting block is of a U-shaped structure, the movable supporting block comprises a sliding block located at the bottom of the movable supporting block, and a sliding groove matched with the sliding block is formed in the base.
Preferably, a reinforcing plate is arranged on the upper portion of the second supporting seat, and the reinforcing plate is connected with the top of the motor in an abutting mode. Can contradict the recoil of motor, reduce the operating pressure of motor mount pad, whole device work is more stable.
Preferably, the first clamp and the second clamp are both constructed in a four-jaw chuck structure, four chucks are adopted, the clamping force is good, and the measuring process is more stable.
The beneficial effects of the utility model are that
1. The method can simulate the real working environment and is convenient for measuring the shearing resistance of the annular joint of the pipe fitting.
2. The gantry frame is adopted to install the motor, the lead screw, the wire block and other parts, the frame is stable, in addition, the movable supporting block is adopted to support the annular seam accessory, the structure is more stable, the measurement error caused by overlarge deformation in pipe fitting measurement is avoided, and the measurement precision is high.
3. The gusset plate has reduced the operating pressure of motor mount pad, adopts four chucks, and the clamp force is good, and whole device work is more stable.
Drawings
Fig. 1 is a schematic structural diagram of an experimental apparatus for measuring tangential shear strength of a pressurized pipe fitting according to the present invention.
Fig. 2 is a right side view of fig. 1.
Fig. 3 is a mounting structure diagram of the tension meter of the present invention.
Fig. 4 is a mounting structure diagram of the movable supporting block of the present invention.
In the figure: 1-base, 101-chute, 2-first supporting seat, 3-second supporting seat, 301-reinforcing plate, 4-first clamp, 5-second clamp, 501-mounting seat, 6-pressurizing mechanism, 7-motor, 8-lead screw, 9-lead block, 10-pipe fitting, 1001-annular seam, 11-movable supporting block, 1101-sliding block, 12-tension meter, 13-first plug, 14-second plug and 15-vent pipe.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, and do not indicate or imply specific orientations that a device or structure to be referred to must have, be constructed in specific orientations, and operations, and thus are not to be construed as limiting the present invention.
Example 1:
as shown in fig. 1 to 4, an experimental apparatus for measuring the tangential shear strength of a pressurized pipe 10 is used for measuring the shear strength at an annular seam 1001 of the pipe 10, and comprises: the device comprises a base 1, a first supporting seat 2, a second supporting seat 3, a first clamp 4, a second clamp 5, a pressurizing mechanism 6, a motor 7, a screw rod 8 and a wire block 9, wherein the first supporting seat 2 is arranged at the upper part of the left end of the base 1, the second supporting seat 3 is arranged at the upper part of the right end of the base 1, the first clamp 4 is arranged at the upper part of the first supporting seat 2 and clamps one end of a pipe fitting 10, the second clamp 5 is arranged in a suspended manner and clamps the other end of the pipe fitting 10, the pressurizing mechanism 6 is communicated with the inside of the pipe fitting 10, two ends of the pipe fitting 10 are provided with plugs, the second supporting seat 3 is of a gantry structure, the motor 7 is arranged at the upper part of the second supporting seat 3, the output end of the motor 7 is connected with the screw rod 8, the screw rod 8 is connected with the wire block 9, and the wire block,
as shown in fig. 3, the present embodiment further includes a movable support block 11 disposed on the base 1 for supporting the pipe 10, the movable support block 11 is located at the left side of the circular seam 1001 of the pipe 10, an installation seat 501 is disposed on the upper portion of the second fixture 5, a tension meter 12 is installed in the installation seat 501, and the tension meter 12 is connected to the beam of the second support seat 3.
The utility model discloses in, the theory of operation is as follows, inside stuffing the end cap into the 10 both ends of pipe fitting that have ring joint 1001, install pipe fitting 10 into first anchor clamps 4, second anchor clamps 5, and make up anchor clamps, with the pore connection on the end cap of loading system 6 and pipe fitting 10 one end, loading system 6 is pneumatic booster pump, then start after loading system 6 slowly pressurizes and reaches certain pressure, then remove 11 to ring joint 1001 left end positions of removal supporting shoe and be close to ring joint 1001, begin starter motor 7, motor 7 is servo motor, and motor 7 drives the lead screw after rotating, and wire block 9, last 5 downstream of second anchor clamps, tensiometer 12 measure the pulling force, the shearing force promptly to realize the test of tangential shear strength.
Example 2:
as shown in fig. 1 and 2, an experimental apparatus for measuring tangential shear strength of a pressurized pipe comprises: the pipe fitting comprises a base 1, a first supporting seat 2, a second supporting seat 3, a first clamp 4, a second clamp 5, a pressurizing mechanism 6, a motor 7, a lead screw 8 and a lead block 9, wherein the first supporting seat 2 is arranged on the upper portion of the left end of the base 1, the second supporting seat 3 is arranged on the upper portion of the right end of the base 1, the first clamp 4 is arranged on the upper portion of the first supporting seat 2 and clamps one end of a pipe fitting 10, the second clamp 5 is arranged in a suspending mode and clamps the other end of the pipe fitting 10, the pressurizing mechanism 6 and the pipe fitting 10 are communicated with each other to inflate the pipe fitting 10, plugs are arranged at two ends of the pipe fitting 10 to prevent gas leakage in the pipe fitting 10 and comprise a first plug 13 and a second plug 14, the first plug 13 is provided with a vent pipe 15 in a penetrating mode, the vent pipe 15 is used for connecting the pressurizing mechanism 6 with the pipe fitting 10, the second supporting seat 3, the motor 7 is arranged on the upper portion of the second supporting seat 3, the output end of the motor 7 is connected with the screw rod 8, the screw rod 8 is connected with the wire block 9, the wire block 9 is fixedly connected with the second clamp 5, so that the tail end of the pipe fitting 10 can move downwards under the driving of the motor 7, and the shearing and the damage of the annular welding seam of the pipe fitting 10 are realized.
The embodiment further comprises a movable supporting block 11 arranged on the base 1 and used for supporting the pipe fitting 10, wherein the movable supporting block 11 is located on the left side of the annular joint 1001 of the pipe fitting 10, the movable supporting block 11 can move left and right and is close to the annular joint 1001, the length of a cantilever when the pipe fitting 10 is installed is reduced, and the measurement precision is improved.
As shown in fig. 3, an installation seat 501 is arranged on the upper portion of the second fixture 5, a tension meter 12 is installed in the installation seat 501, the tension meter 12 is connected with the beam of the second support seat 3, the tension meter 12 is used for measuring applied pressure, namely, shearing force received by the pipe 10, and the tension meter 12 can be electrically connected with a dynamometer, so that a real-time tension value can be conveniently stored.
As shown in fig. 4, the upper portion of the movable supporting block 11 is of a U-shaped structure, the movable supporting block 11 includes a slider 1101 located at the bottom thereof, a sliding groove 101 matched with the slider 1101 is arranged on the base 1, the sliding groove 101 is of a dovetail groove structure, the structure is simple, the pipe fitting 10 can be completely attached, and the supporting effect is good.
And a reinforcing plate 301 is arranged on the upper part of the second supporting seat 3, and the reinforcing plate 301 is connected with the top of the motor 7 in an abutting mode. Can be abutted against the recoil of the motor 7, the working pressure of the mounting seat 501 of the motor 7 is reduced, and the whole device works more stably.
The first clamp 4 and the second clamp 5 are both constructed in a four-jaw chuck structure, four chucks are adopted, the clamping force is good, and the measuring process is more stable.
In the utility model, the working principle is as follows, plugs are plugged into the two ends of the pipe fitting 10 with the annular joint 1001, the pipe fitting 10 is arranged in the first clamp 4 and the second clamp 5, the clamps are tightened, the pressurizing mechanism 6 is connected with the air hole on the plug at one end of the pipe fitting 10, the pressurizing mechanism 6 is a pressurizing water pump, then starting the pressurizing mechanism 6 to slowly pressurize to reach a certain water pressure, then moving the movable supporting block 11 to the left end position of the annular joint 1001 and close to the annular joint 1001, starting the motor 7, the motor 7 is a servo motor, the embodiment further comprises a motor controller arranged on the second mounting seat 501, the motor 7 is electrically connected with the motor controller, the motor controller controls the motor 7 to rotate and then drives the lead screw, the wire block 9 and finally the second clamp 5 to move downwards, and the tension meter 12 measures the tension force, namely the shearing force, so that the test of the tangential shearing strength is realized.
It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (4)
1. An experimental apparatus for determining the tangential shear strength of a pressurized pipe for measuring the shear strength at an annular seam (1001) of a pipe (10), comprising: base (1), first supporting seat (2), second supporting seat (3), first anchor clamps (4), second anchor clamps (5), loading system (6), motor (7), lead screw (8) and silk piece (9), first supporting seat (2) set up base (1) left end upper portion, second supporting seat (3) set up base (1) right-hand member upper portion, first anchor clamps (4) set up the one end of first supporting seat (2) upper portion and centre gripping pipe fitting (10), the other end of unsettled setting and centre gripping pipe fitting (10) of second anchor clamps (5), loading system (6) and pipe fitting (10) inside intercommunication, pipe fitting (10) both ends are provided with end cap, its characterized in that: the second supporting seat (3) is of a gantry structure, the motor (7) is arranged on the upper portion of the second supporting seat (3), the output end of the motor (7) is connected with the screw rod (8), the screw rod (8) is connected with the wire block (9), the wire block (9) is fixedly connected with the second clamp (5), the second supporting seat further comprises a movable supporting block (11) which is arranged on the base (1) and used for supporting the pipe fitting (10), the movable supporting block (11) is located on the left side of an annular joint (1001) of the pipe fitting (10), a mounting seat (501) is arranged on the upper portion of the second clamp (5), a tension meter (12) is installed in the mounting seat (501), and the other end of the tension meter (12) is connected with a beam of the second supporting seat (3).
2. The experimental apparatus for measuring tangential shear strength of pressurized pipe according to claim 1, wherein: the upper portion of the movable supporting block (11) is of a U-shaped structure, the movable supporting block (11) comprises a sliding block (1101) located at the bottom of the movable supporting block, and a sliding groove (101) matched with the sliding block (1101) is formed in the base (1).
3. An experimental apparatus for determining tangential shear strength of pressurized pipe according to claim 1 or 2, wherein: second supporting seat (3) upper portion is provided with gusset plate (301), gusset plate (301) with motor (7) top is contradicted and is connected.
4. An experimental apparatus for determining tangential shear strength of pressurized pipe according to claim 1 or 2, wherein: the first clamp (4) and the second clamp (5) are each configured as a four-jaw chuck structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020898847.7U CN212514054U (en) | 2020-05-26 | 2020-05-26 | Experimental device for measuring tangential shear strength of pressurizing pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020898847.7U CN212514054U (en) | 2020-05-26 | 2020-05-26 | Experimental device for measuring tangential shear strength of pressurizing pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212514054U true CN212514054U (en) | 2021-02-09 |
Family
ID=74394065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020898847.7U Expired - Fee Related CN212514054U (en) | 2020-05-26 | 2020-05-26 | Experimental device for measuring tangential shear strength of pressurizing pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212514054U (en) |
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2020
- 2020-05-26 CN CN202020898847.7U patent/CN212514054U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210209 |