CN110296798B - Pipeline assembly deviation test bed, test system and test system under basic excitation - Google Patents
Pipeline assembly deviation test bed, test system and test system under basic excitation Download PDFInfo
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- CN110296798B CN110296798B CN201910634300.8A CN201910634300A CN110296798B CN 110296798 B CN110296798 B CN 110296798B CN 201910634300 A CN201910634300 A CN 201910634300A CN 110296798 B CN110296798 B CN 110296798B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a pipeline assembly deviation simulation test bed, a pipeline assembly deviation simulation test system and a pipeline assembly deviation simulation test system under basic excitation, and relates to the technical field of pipeline sealing tests.
Description
Technical Field
The invention relates to the technical field of pipeline sealing tests, in particular to a pipeline assembly deviation simulation test bed, a pipeline assembly deviation simulation test system and a pipeline assembly deviation simulation test system under basic excitation.
Background
The piping system serves as the main passage for modern aircraft power transmission, and connects various elements and devices to transmit fluid, so as to realize energy conversion, transmission, distribution and control. The intricate and complex pipelines are distributed in each module of the airplane like 'blood vessels' of a human body, and are main arteries of airplane systems. Therefore, the reliability of the pipeline system is critical, and once a problem occurs, pipeline transmission is failed, pipeline leakage is caused slightly, and pipeline breakage is caused severely, so that major safety accidents such as system operation failure, engine fire and the like are caused, and the flight safety of the airplane is seriously influenced. The structural failure of piping systems due to pipe shock and resonance is widely recognized and a series of pipe damping methods and measures are widely studied and applied. However, the influence of the assembly stress on the pipeline and the connecting piece thereof and the weakening of the sealing performance of the pipeline system caused by the assembly error are often ignored, and the research on the influence mechanism of the assembly deviation and the control method is not sufficient. Therefore, aiming at the pipeline connecting piece of the actual hydraulic system of the modern airplane, the assembly stress of the pipeline connecting piece under the assembly deviation is deeply analyzed, the pipeline leakage mechanism caused by the assembly stress is researched, the reasonable assembly standard is formulated, the assembly stress is controlled by controlling the assembly error, and finally the tightness of the pipeline connecting piece is ensured.
Therefore, how to provide a testing device capable of simulating the assembling deviation of the pipeline becomes a technical problem which needs to be solved by those skilled in the art.
Disclosure of Invention
In order to solve the technical problems, the invention provides a pipeline assembly deviation simulation test bed, a pipeline assembly deviation simulation test system and a pipeline assembly deviation simulation test system under basic excitation.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a pipeline assembly deviation simulation test bed, which comprises,
the first end of the pipeline is clamped in the first angle deviation adjusting mechanism;
the second end of the pipeline is clamped in the second angle deviation adjusting mechanism;
the hoop is arranged between the first angle deviation adjusting mechanism and the second angle deviation adjusting mechanism, and the pipeline is clamped in the hoop;
an axial deviation adjustment structure connected with the first angular deviation adjustment mechanism to adjust axial deviation of the pipe;
the clamp deviation adjusting mechanism is connected with the clamp so as to adjust the clamp deviation of the pipeline;
a radial deviation adjustment mechanism connected with the second angular deviation adjustment mechanism to adjust a radial deviation of the pipe;
the base, axial deviation adjustment mechanism first angle deviation adjustment mechanism clamp deviation adjustment mechanism and radial deviation adjustment mechanism follows the length direction of base in proper order fixed set up in on the base.
Preferably, the radial deviation adjusting mechanism includes a first radial adjusting support, a first radial adjusting screw, a first screw fixing support and a first rotating limiting side plate, the second angular deviation adjusting mechanism is detachably fixed on the first radial adjusting support, the first radial adjusting support is detachably fixed on the base, a first radial mounting hole is arranged inside the first radial adjusting support, the first radial adjusting screw is nested and mounted in the first radial mounting hole, the outer side wall of the first radial adjusting screw is in threaded connection with the inner side wall of the first radial mounting hole, a second radial mounting hole is arranged inside the first radial adjusting screw, the first screw fixing support is nested and mounted in the second radial mounting hole, and the first radial adjusting screw can rotate around the first screw fixing support, first screw rod fixing support detachably is fixed in on the base, the relative both sides of first radial regulation support respectively set up one first spacing curb plate of rotating, the base joint is in two between the first spacing curb plate of rotating.
Preferably, the bottom of first radial adjustment support is provided with first recess, the one end of first radial adjusting screw is provided with first nut, the diameter of first nut is greater than the diameter of the radial mounting hole of second, first nut install in the first recess, just the lateral wall circumference of first nut is provided with a plurality of rotations of being used for the first rotatory hole of first radial adjusting screw.
Preferably, the clamp deviation adjusting mechanism comprises a second radial adjusting support, a second radial adjusting screw, a second screw fixing support and a second rotating limiting side plate, the clamp is detachably fixed on the second radial adjusting support, the second radial adjusting support is detachably fixed on the base, a third radial mounting hole is formed in the second radial adjusting support, the second radial adjusting screw is nested and mounted in the third radial mounting hole, the outer side wall of the second radial adjusting screw is in threaded connection with the inner side wall of the third radial mounting hole, a fourth radial mounting hole is formed in the second radial adjusting screw, the second screw fixing support is nested and mounted in the fourth radial mounting hole, and the second radial adjusting screw can rotate around the second screw fixing support, the second screw rod fixing support is detachably fixed on the base, two opposite sides of the second radial adjusting support are respectively provided with one second rotating limiting side plate, and the base is clamped between the two second rotating limiting side plates.
Preferably, the bottom of the second radial adjusting support is provided with a second groove, one end of the second radial adjusting screw is provided with a second nut, the diameter of the second nut is greater than that of the second radial mounting hole, the second nut is mounted in the second groove, and a plurality of second rotating holes used for rotating the second radial adjusting screw are circumferentially arranged on the outer side wall of the second nut.
Preferably, the axial deviation adjusting device includes an axial adjusting screw and a screw supporting seat, the screw supporting seat is fixed to one side of the base, a third nut is arranged at one end of the axial adjusting screw, and the other end of the axial adjusting screw penetrates through the screw supporting seat and is in threaded connection with the first angle deviation adjusting mechanism.
Preferably, first angle deviation adjustment mechanism includes first coupling supporting seat, be provided with first through-hole on the first coupling supporting seat, the first end joint of pipeline in the first through-hole, first coupling supporting seat through first fixing base fixed mounting in on the base, second angle deviation adjustment mechanism includes second coupling supporting seat, be provided with the second through-hole on the second coupling supporting seat, the second end joint of pipeline in the second through-hole.
Preferably, the base includes a horizontal top plate, a horizontal bottom plate, and a plurality of vertical side plates, each vertical side plate is disposed between the horizontal top plate and the horizontal bottom plate, one of two ends of each vertical side plate is fixedly connected to the horizontal top plate, the other one is fixedly connected to the horizontal bottom plate, the horizontal top plate is provided with a plurality of T-shaped through grooves, each T-shaped through groove is disposed along a length direction of the horizontal top plate, the first angle deviation adjusting mechanism is provided with a first T-shaped slider, the clamp deviation adjusting mechanism is provided with a second T-shaped slider, the radial deviation adjusting mechanism is provided with a third T-shaped slider, and the first T-shaped slider, the second T-shaped slider, and the third T-shaped slider form a sliding pair with the T-shaped through grooves.
The invention also provides a pipeline assembly deviation simulation test system which comprises a hydraulic pump, a pressure retaining valve, a pressure sensor, a plug, the pipeline and the pipeline assembly deviation simulation test bed, wherein one of the first end and the second end of the pipeline is provided with the plug, the other end of the pipeline is sequentially communicated with the pressure sensor, the pressure retaining valve and the hydraulic pump through connecting pipes, the first end of the pipeline is clamped in the first angle deviation adjusting mechanism, the second end of the pipeline is clamped in the second angle deviation adjusting mechanism, and the pipeline is clamped in the clamp.
The invention also provides a pipeline assembly deviation simulation test system under basic excitation, which comprises a vibration table, a controller and the pipeline assembly deviation simulation test system, wherein the vibration table is fixedly connected with the pipeline assembly deviation simulation test table, and the controller is connected with the vibration table so as to control the acceleration amplitude, the displacement amplitude and the excitation force of the vibration table.
Compared with the prior art, the invention has the following technical effects:
the pipeline assembly deviation simulation test bed provided by the invention comprises a radial deviation adjusting mechanism for adjusting the radial deviation of a pipeline, an axial deviation adjusting mechanism for adjusting the axial deviation of the pipeline, a hoop deviation adjusting mechanism for adjusting the hoop deviation of the pipeline, and a first angle deviation adjusting mechanism and a second angle adjusting mechanism for adjusting the angle deviation of the pipeline.
The pipeline assembly deviation simulation test system and the pipeline assembly deviation simulation test system under the basic excitation both comprise the pipeline assembly deviation simulation test bed, so that the pipeline assembly deviation simulation test system and the pipeline assembly deviation simulation test system under the basic excitation can realize the simulation of the pipeline assembly deviation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a pipe fitting deviation simulation test system under basic excitation according to an embodiment of the present invention;
fig. 2 is a perspective view of a second angular deviation adjustment mechanism and a radial deviation adjustment mechanism provided in an embodiment of the present invention;
FIG. 3 is a cross-sectional view of FIG. 2;
FIG. 4 is a perspective view of a clamp and a clamp misalignment adjustment mechanism provided in an embodiment of the present invention;
FIG. 5 is a cross-sectional view of FIG. 4;
FIG. 6 is a perspective view of a first angular misalignment adjustment mechanism and an axial misalignment adjustment mechanism provided in an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a base provided in the embodiment of the present invention.
Description of reference numerals: 1. a first angular deviation adjustment mechanism; 101. a first pipe joint support seat; 102. a first through hole; 103. a first fixed seat; 104. a first T-shaped slider; 2. a second angular deviation adjustment mechanism; 201. a second pipe joint support seat; 202. a second through hole; 3. clamping a hoop; 301. an upper hoop; 302. a lower hoop; 4. an axial deviation adjustment structure; 401. an axial adjusting screw; 402. a screw rod supporting seat; 403. a third nut; 404. a third rotation hole; 5. a clamp deviation adjusting mechanism; 501. a second radial adjustment support; 502. a second radial adjusting screw; 503. a second screw fixing support; 504. a second rotation limiting side plate; 505. a second T-shaped slider; 5051. a third through hole; 506. a second nut; 5061. a second rotation hole; 6. a radial deviation adjustment mechanism; 601. a first radial adjustment support; 602. a first radial adjusting screw; 603. a first screw fixing support; 604. a first rotation limiting side plate; 605. a third T-shaped slider; 6051. a fourth via hole; 606. a first nut; 6061. a first rotation hole; 7. a base; 701. a first T-shaped through slot; 702. a second T-shaped through slot; 703. a third T-shaped through slot; 704. a horizontal top plate; 705. a horizontal floor; 706. a vertical side plate; 8. a flange plate; 9. a pipeline; 10. a first pipe joint; 11. a second pipe joint; 12. a vibration table.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a pipeline assembly deviation simulation test bed and a pipeline assembly deviation simulation test system capable of realizing pipeline assembly deviation simulation, and a pipeline assembly deviation simulation test system under basic excitation.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The first embodiment is as follows:
the embodiment provides a pipeline assembly deviation simulation test bed, as shown in fig. 1, which includes a first angle deviation adjusting mechanism 1, wherein a first end of a pipeline 9 is clamped in the first angle deviation adjusting mechanism 1; the second end of the pipeline 9 is clamped in the second angle deviation adjusting mechanism 2; the hoop 3 is arranged between the first angle deviation adjusting mechanism 1 and the second angle deviation adjusting mechanism 2, and the pipeline 9 is clamped in the hoop 3; the axial deviation adjusting structure 4 is connected with the first angle deviation adjusting mechanism 1 to adjust the axial deviation of the pipeline 9; the hoop deviation adjusting mechanism 5 is connected with the hoop 3 to adjust the hoop deviation of the pipeline 9; the radial deviation adjusting mechanism 6 is connected with the second angle deviation adjusting mechanism 2 to adjust the radial deviation of the pipeline 9; the base 7, axial deviation adjustment mechanism, first angle deviation adjustment mechanism 1, clamp deviation adjustment mechanism 5 and radial deviation adjustment mechanism 6 are fixed setting up in proper order on base 7 along the length direction of base 7, and the simulation of the 9 assembly deviations of realization pipeline that this pipeline assembly deviation analogue test platform can be convenient.
Specifically, clamp 3 includes last clamp 301 and lower clamp 302, goes up clamp 301 and passes through bolt-up with lower clamp 302, and the first end of pipeline 9 is provided with first coupling 10, and the second end of pipeline 9 is provided with second coupling 11, and first coupling 10 joint is in first angle deviation adjustment mechanism 1, and second coupling 11 joint is in second angle deviation adjustment mechanism 2, and the first end and the first coupling 10 threaded connection of preferred pipeline 9, the second end and the second coupling 11 threaded connection of pipeline 9.
In addition, it should be noted that, in a specific use process, the first angular deviation adjusting mechanism 1 and the second angular deviation adjusting mechanism 2 are used for supporting the pipeline 9, and the other is used for adjusting the angular deviation of the pipeline 9.
Example two:
the pipe fitting deviation simulation test bed provided by the present embodiment includes all the technical features of the first embodiment, except that, as shown in fig. 2-3, the pipe fitting deviation simulation test bed radial deviation adjusting mechanism 6 provided by the present embodiment includes a first radial adjusting support 601, a first radial adjusting screw 602, a first screw fixing support 603, and a first rotation limiting side plate 604, the second angular deviation adjusting mechanism 2 is detachably fixed on the first radial adjusting support 601, the first radial adjusting support 601 is detachably fixed on the base 7, a first radial mounting hole is provided inside the first radial adjusting support 601, the first radial adjusting screw 602 is nested and mounted in the first radial mounting hole, an outer side wall of the first radial adjusting screw 602 is in threaded connection with an inner side wall of the first radial mounting hole, a second radial mounting hole is provided inside the first radial adjusting screw 602, first screw rod fixing support 603 is nested and is installed in the radial mounting hole of second, and first radial adjusting screw 602 can rotate around first screw rod fixing support 603, and on first screw rod fixing support 603 detachably was fixed in base 7, the relative both sides of first radial adjusting support 601 respectively set up a first spacing curb plate 604 that rotates, and base 7 joint is in between two first spacing curb plates 604 that rotate.
Specifically, the second angular deviation adjustment mechanism 2 is fastened to the first radial adjustment holder 601 by a first screw.
In order to facilitate the adjustment of the radial deviation of the pipeline 9, a first groove is formed in the bottom end of the first radial adjusting support 601, a first nut 606 is arranged at one end of the first radial adjusting screw 602, the diameter of the first nut 606 is larger than that of the second radial mounting hole, the first nut 606 is rotatably mounted in the first groove, a plurality of first rotating holes 6061 used for rotating the first radial adjusting screw 602 are uniformly arranged in the circumferential direction of the outer side wall of the first nut 606, a tool is inserted into the first rotating holes 6061 to rotate the first radial adjusting screw 602, the rotation of the first radial adjusting screw 602 is time-saving and labor-saving, and the adjustment of the radial deviation of the pipeline 9 is convenient.
Example three:
the pipe fitting deviation simulation test bed provided by the present embodiment includes all the technical features of the first embodiment, except that, as shown in fig. 4-5, the pipe fitting deviation simulation test bed hoop deviation adjusting mechanism 5 provided by the present embodiment includes a second radial adjusting support 501, a second radial adjusting screw 502, a second screw fixing support 503, and a second rotation limiting side plate 504, the hoop 3 is detachably fixed on the second radial adjusting support 501, the second radial adjusting support 501 is detachably fixed on the base 7, a third radial mounting hole is provided inside the second radial adjusting support 501, the second radial adjusting screw 502 is nested and mounted in the third radial mounting hole, an outer side wall of the second radial adjusting screw 502 is in threaded connection with an inner side wall of the third radial mounting hole, a fourth radial mounting hole is provided inside the second radial adjusting screw 502, the second screw fixing support 503 is nested and installed inside the fourth radial installation hole, the second radial adjusting screw 502 can rotate around the second screw fixing support 503, the second screw fixing support 503 is detachably fixed on the base 7, two opposite sides of the second radial adjusting support 501 are respectively provided with a second rotation limiting side plate 504, and the base 7 is clamped between the two second rotation limiting side plates 504.
In order to facilitate the adjustment of the clamp deviation of the pipeline 9, a second groove is formed in the bottom end of the second radial adjusting support 501, a second nut 506 is arranged at one end of the second radial adjusting screw 502, the diameter of the second nut 506 is larger than that of the second radial mounting hole, the second nut 506 is rotatably mounted in the second groove, a plurality of second rotating holes 5061 used for rotating the second radial adjusting screw 502 are uniformly formed in the circumferential direction of the outer side wall of the second nut 506, a tool is inserted into the second rotating holes 5061 to rotate the second radial adjusting screw 502, the rotation of the second radial adjusting screw 502 is time-saving and labor-saving, and the clamp deviation of the pipeline 9 is convenient to adjust.
Example four:
the pipe assembly deviation simulation test bed provided by the embodiment includes all the technical features of the first embodiment, the difference lies in that, as shown in fig. 6, the pipe assembly deviation simulation test bed axial deviation adjusting device provided by the embodiment includes an axial adjusting screw 401 and a screw supporting seat 402, the screw supporting seat 402 is fixed on one side of the base 7, one end of the axial adjusting screw 401 is provided with a third nut 403, the other end of the axial adjusting screw 401 penetrates through the screw supporting seat 402 and is in threaded connection with the first angle deviation adjusting mechanism 1, the axial deviation of the pipe 9 can be adjusted by rotating the axial adjusting screw 401 in the specific use process, and the adjustment of the axial deviation of the pipe 9 is convenient.
In addition, a plurality of third rotating holes 404 for rotating the axial adjusting screw 401 are uniformly arranged on the outer side wall of the third nut 403 in the circumferential direction, and a tool is inserted into the third rotating holes 404 to rotate the axial adjusting screw 401, so that the axial adjusting screw 401 is convenient to rotate.
Example five:
the pipe assembly deviation simulation test bench that this embodiment provided includes all technical characteristics of embodiment one, the difference lies in, as shown in fig. 2 and fig. 6, the first angle deviation adjustment mechanism 1 of pipe assembly deviation simulation test bench that this embodiment provided includes first coupling supporting seat 101, be provided with first through-hole 102 on the first coupling supporting seat 101, the first end joint of pipeline 9 is in first through-hole 102, first coupling supporting seat 101 is through first fixing base 103 fixed mounting on base 7, second angle deviation adjustment mechanism 2 includes second coupling supporting seat 201, be provided with second through-hole 202 on the second coupling supporting seat 201, the second end joint of pipeline 9 is in second through-hole 202.
Specifically, the first pipe joint 10 is clamped in the first through hole 102, the second pipe joint 11 is clamped in the second through hole 202, and the other end of the axial adjusting screw 401 penetrates through the screw supporting seat 402 and is in threaded connection with the first fixing seat 103.
The angle deviation of the pipeline 9 can be adjusted by adjusting the inclination of the first pipe joint support seat 101 and/or the second pipe joint support seat 201 in the specific using process, and the pipeline assembly deviation simulation test bed can be suitable for pipelines 9 of different models by adjusting the sizes of the first through hole 102 and the second through hole 202.
Example six:
the pipe assembly deviation simulation test bed provided by this embodiment includes all the technical features of the first embodiment, except that, as shown in fig. 7, the pipe assembly deviation simulation test bed base 7 provided by this embodiment includes a horizontal top plate 704, a horizontal bottom plate 705 and a plurality of vertical side plates 706, each vertical side plate 706 is disposed between the horizontal top plate 704 and the horizontal bottom plate 705, one of the two ends of each vertical side plate 706 is fixedly connected with the horizontal top plate 704, the other one is fixedly connected with the horizontal bottom plate, the horizontal top plate 704 is provided with a plurality of T-shaped through grooves, each T-shaped through groove is disposed along the length direction of the horizontal top plate 704, the first angle deviation adjusting mechanism is provided with a first T-shaped slider 104, the hoop deviation adjusting mechanism 5 is provided with a second T-shaped slider 505, the radial deviation adjusting mechanism 6 is provided with a third T-shaped slider 605, the first T-shaped slider 104 is provided with a second, The second T-shaped slider 505 and the third T-shaped slider 605 form a sliding pair with the T-shaped through groove.
Specifically, the number of the T-shaped through grooves is three, and the T-shaped through grooves are respectively a first T-shaped through groove 701, a second T-shaped through groove 702 and a third T-shaped through groove 703, and the second T-shaped through groove 702 is arranged between the first T-shaped through groove 701 and the third T-shaped through groove 703;
the radial deviation adjusting mechanism 6 further comprises a first outer hexagon bolt and a second outer hexagon bolt, the nut of the first outer hexagon bolt is installed in the first T-shaped through groove 701, the nut of the second outer hexagon bolt is installed in the third T-shaped through groove 703, the diameter of the circumscribed circle of the nut of the first outer hexagon bolt is larger than the width of the first T-shaped through groove 701 so as to prevent the first outer hexagon bolt from rotating, the diameter of the circumscribed circle of the nut of the second outer hexagon bolt is larger than the width of the third T-shaped through groove 703 so as to prevent the second outer hexagon bolt from rotating, and the first outer hexagon bolt and the second outer hexagon bolt both penetrate through the first radial adjusting support 601 and are fastened with the first radial adjusting support 601 through the first nut;
the clamp deviation adjusting mechanism 5 further comprises a third outer hexagon bolt and a fourth outer hexagon bolt, the nut of the third outer hexagon bolt is installed in the first T-shaped through groove 701, the nut of the fourth outer hexagon bolt is installed in the third T-shaped through groove 703, the circumscribed circle diameter of the nut of the third outer hexagon bolt is larger than the width of the first T-shaped through groove 701 to prevent the third outer hexagon bolt from rotating, the circumscribed circle diameter of the nut of the fourth outer hexagon bolt is larger than the width of the third T-shaped through groove 703 to prevent the fourth outer hexagon bolt from rotating, and the third outer hexagon bolt and the fourth outer hexagon bolt both penetrate through the second radial adjusting support 501 and are fastened with the second radial adjusting support 501 through the second nut;
the axial deviation adjusting mechanism further comprises a second screw, the second screw is in threaded connection with the first pipe joint 10 supporting seat 101, and one end of the second screw penetrates through the first pipe joint 10 supporting seat 101 to abut against the base 7;
the number of the first T-shaped sliding blocks 104 is two, one of the two blocks is arranged in the first T-shaped through groove 701, the other block is arranged in the third T-shaped through groove 703, the first T-shaped sliding block 104 is fixedly connected with the first fixed seat 103, the second T-shaped sliding block 505 and the third T-shaped sliding block 605 are both arranged in the second T-shaped through groove 702, the second T-shaped sliding block 505 is fixedly connected with the second screw fixing support 503, the third T-shaped sliding block 605 is fixedly connected with the first screw fixing support 603, the second T-shaped sliding block 505 is provided with a third through hole 5051, the third T-shaped sliding block 605 is provided with a fourth through hole 6051, the first headless bolt is in threaded connection with the inner wall of the third through hole 5051, and one end of the first headless bolt abuts against the bottom surface of the second T-shaped through groove 702, the second headless bolt is in threaded connection with the inner wall of the fourth through hole 6051, and one end of the second headless bolt abuts against the bottom surface of the second T-shaped through groove 702.
When the device is used, the second screw is unscrewed, and the axial deviation of the pipeline 9 can be adjusted by rotating the axial adjusting screw 401; the first nut is unscrewed, and the radial deviation of the pipeline 9 can be adjusted by rotating the first radial adjusting screw 602; the second nut is unscrewed, and the hoop deviation of the pipeline 9 can be adjusted by rotating the second radial adjusting screw 502; the position of the second T-shaped sliding block 505 in the second T-shaped groove can be adjusted by unscrewing the first headless bolt, so that the position of the hoop deviation adjusting mechanism 5 is adjusted; the position of the third T-shaped slide 605 in the second T-shaped groove can be adjusted by unscrewing the second headless bolt, thereby adjusting the position of the radial deviation adjustment mechanism 6.
Example seven:
the embodiment provides a pipeline assembly deviation simulation test system, as shown in fig. 1, including the hydraulic pump, the pressure retaining valve, pressure sensor, the end cap, pipeline 9 and the first pipeline assembly deviation simulation test platform to the seventh embodiment of embodiment, the first end and the second end of pipeline 9, the end cap is installed to one of the two, another one passes through the connecting pipe in proper order with pressure sensor, pressure retaining valve and hydraulic pump intercommunication, the first end joint of pipeline 9 is in first angle deviation adjustment mechanism 1, the second end joint of pipeline 9 is in second angle deviation adjustment mechanism 2, and pipeline 9 chucking is in clamp 3.
The hydraulic pump is a manual pump, and the connecting pipe is a connecting hose.
The specific test method of the pipe fitting deviation simulation test system provided by the embodiment comprises the following steps,
the method comprises the following steps: grouping according to different sizes of materials of the test pipelines 9;
step two: before a formal test is carried out on a test pipeline 9, a pipeline assembly deviation simulation test bed, a hydraulic pump and a pressure retaining valve are debugged, the sensitivity of a pressure sensor is systematically calibrated, the rated pressure of the pipeline 9 is found out through a navigation mark, the maximum allowable installation deviation value of the pipeline 9 is calculated, and then the pressure range and the installation deviation range of the test are determined through a preliminary test;
step three: fixing the pipeline 9 on a pipeline assembly deviation simulation test bed, and adjusting the installation deviation of the pipeline 9 according to a plan;
step four: a plug is arranged at one end of the pipeline 9 to plug the pipeline, the other end of the pipeline 9 is sequentially connected with a pressure sensor, a pressure retaining valve and a hydraulic pump by using a connecting pipe, so that the pipeline 9, the pressure sensor, the pressure retaining valve and the hydraulic pump are sequentially communicated, the pipeline 9 is pressurized to an experimental value, the sealing condition of the pipeline 9 is observed, and the change of the pressure sensor is recorded;
step five: after the verification test, the deviation is continuously increased to carry out a leakage test of the pipeline 9, and the obtained experimental data is subjected to statistical analysis.
Example eight:
the embodiment provides a pipeline assembly deviation simulation test system under basic excitation, as shown in fig. 1, the pipeline assembly deviation simulation test system comprises a vibration table 12, a controller and a controller, the vibration table 12 is fixedly connected with the pipeline assembly deviation simulation test system, and the controller is connected with the vibration table 12 to control the acceleration amplitude, the displacement amplitude and the excitation force of the vibration table 12.
The controller is specifically a PLC controller, and the controller is connected to the vibration table 12 through a control loop and a feedback loop.
The specific test method of the pipe fitting deviation simulation test system under basic excitation provided by the embodiment comprises the following steps,
firstly, fixedly connecting a pipeline assembly deviation simulation test bed with a vibration table 12 through a flange 8;
controlling the vibration table 12 through the controller to enable the pipeline 9 to resonate and enable the whole pipeline 9 to reach a required test acceleration level;
and step three, stably and continuously vibrating the pipeline 9 until the pipeline 9 leaks or the experiment time reaches 20 min.
It should be noted that the pipe angle deviation refers to a deviation angle of central axes of two connected pipes, the pipe radial deviation refers to a radial deviation of central axes of two connected pipes, and the pipe axial deviation refers to a length deviation on butt joint end faces of two connected pipes.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (9)
1. A simulation test bed for pipeline assembly deviation is characterized by comprising,
the first end of the pipeline is clamped in the first angle deviation adjusting mechanism;
the second end of the pipeline is clamped in the second angle deviation adjusting mechanism;
the hoop is arranged between the first angle deviation adjusting mechanism and the second angle deviation adjusting mechanism, and the pipeline is clamped in the hoop;
an axial deviation adjustment structure connected with the first angular deviation adjustment mechanism to adjust axial deviation of the pipe;
the clamp deviation adjusting mechanism is connected with the clamp so as to adjust the clamp deviation of the pipeline;
a radial deviation adjustment mechanism connected with the second angular deviation adjustment mechanism to adjust a radial deviation of the pipe;
the axial deviation adjusting mechanism, the first angle deviation adjusting mechanism, the hoop deviation adjusting mechanism and the radial deviation adjusting mechanism are fixedly arranged on the base in sequence along the length direction of the base;
the radial deviation adjusting mechanism comprises a first radial adjusting support, a first radial adjusting screw, a first screw fixing support and a first rotating limiting side plate, the second angular deviation adjusting mechanism is detachably fixed on the first radial adjusting support, the first radial adjusting support is detachably fixed on the base, a first radial mounting hole is formed in the first radial adjusting support, the first radial adjusting screw is embedded in the first radial mounting hole, the outer side wall of the first radial adjusting screw is in threaded connection with the inner side wall of the first radial mounting hole, a second radial mounting hole is formed in the first radial adjusting screw, the first screw fixing support is embedded in the second radial mounting hole, and the first radial adjusting screw can rotate around the first screw fixing support, first screw rod fixing support detachably is fixed in on the base, the relative both sides of first radial regulation support respectively set up one first spacing curb plate of rotating, the base joint is in two between the first spacing curb plate of rotating.
2. The pipe fitting deviation simulation test bed according to claim 1, wherein a first groove is formed in a bottom end of the first radial adjusting support, a first nut is arranged at one end of the first radial adjusting screw, the diameter of the first nut is larger than that of the second radial mounting hole, the first nut is mounted in the first groove, and a plurality of first rotating holes for rotating the first radial adjusting screw are circumferentially formed in an outer side wall of the first nut.
3. The pipe assembling deviation simulation test bed of claim 1, wherein the clamp deviation adjusting mechanism comprises a second radial adjusting support, a second radial adjusting screw, a second screw fixing support and a second rotation limiting side plate, the clamp is detachably fixed on the second radial adjusting support, the second radial adjusting support is detachably fixed on the base, a third radial mounting hole is formed inside the second radial adjusting support, the second radial adjusting screw is nested and mounted in the third radial mounting hole, the outer side wall of the second radial adjusting screw is in threaded connection with the inner side wall of the third radial mounting hole, a fourth radial mounting hole is formed inside the second radial adjusting screw, and the second screw fixing support is nested and mounted inside the fourth radial mounting hole, and the second radial adjusting screw can rotate around the second screw fixing support, the second screw fixing support is detachably fixed on the base, two opposite sides of the second radial adjusting support are respectively provided with a second rotating limiting side plate, and the base is clamped between the two second rotating limiting side plates.
4. The pipe fitting deviation simulation test bed according to claim 3, wherein a second groove is formed in the bottom end of the second radial adjusting support, a second nut is arranged at one end of the second radial adjusting screw, the diameter of the second nut is larger than that of the second radial mounting hole, the second nut is mounted in the second groove, and a plurality of second rotating holes for rotating the second radial adjusting screw are circumferentially formed in the outer side wall of the second nut.
5. The pipe assembling deviation simulation test bed of claim 1, wherein the axial deviation adjusting device comprises an axial adjusting screw and a screw supporting seat, the screw supporting seat is fixed on one side of the base, a third nut is arranged at one end of the axial adjusting screw, and the other end of the axial adjusting screw penetrates through the screw supporting seat and is in threaded connection with the first angular deviation adjusting mechanism.
6. The pipe assembling deviation simulation test bed of claim 1, wherein the first angular deviation adjusting mechanism comprises a first pipe joint support seat, a first through hole is formed in the first pipe joint support seat, the first end of the pipe is clamped in the first through hole, the first pipe joint support seat is fixedly installed on the base through a first fixing seat, the second angular deviation adjusting mechanism comprises a second pipe joint support seat, a second through hole is formed in the second pipe joint support seat, and the second end of the pipe is clamped in the second through hole.
7. The pipe fitting deviation simulation test bed of claim 1, wherein said base comprises a horizontal top plate, a horizontal bottom plate, and a plurality of vertical side plates, each of said vertical side plates being disposed between said horizontal top plate and said horizontal bottom plate, one of the two ends of each vertical side plate is fixedly connected with the horizontal top plate, the other end of each vertical side plate is fixedly connected with the horizontal bottom plate, a plurality of T-shaped through grooves are arranged on the horizontal top plate, each T-shaped through groove is arranged along the length direction of the horizontal top plate, the first angle deviation adjusting mechanism is provided with a first T-shaped sliding block, the hoop deviation adjusting mechanism is provided with a second T-shaped sliding block, the radial deviation adjusting mechanism is provided with a third T-shaped sliding block, and the first T-shaped sliding block, the second T-shaped sliding block and the third T-shaped sliding block form a sliding pair with the T-shaped through groove.
8. A pipe fitting deviation simulation test system, characterized in that, include hydraulic pump, pressure retaining valve, pressure sensor, end cap, the pipeline and according to any one of claims 1-7 the pipe fitting deviation simulation test bench, the first end and the second end of pipeline, one of the two installation the end cap, another pass through the connecting pipe in proper order with pressure sensor the pressure retaining valve with the hydraulic pump intercommunication, the first end joint of pipeline in first angle deviation adjustment mechanism, the second end joint of pipeline in the second angle deviation adjustment mechanism, just the pipeline chucking in the clamp.
9. The pipeline assembly deviation simulation test system under basic excitation is characterized by comprising a vibration table, a controller and the pipeline assembly deviation simulation test system according to claim 8, wherein the vibration table is fixedly connected with the pipeline assembly deviation simulation test system, and the controller is connected with the vibration table so as to control the acceleration amplitude, the displacement amplitude and the excitation force of the vibration table.
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| CN118310658A (en) * | 2024-06-04 | 2024-07-09 | 东北大学 | Automatic measurement device and method for installation stress of external pipeline of aero-engine |
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