CN116148083A - Device and process for testing tensile strength of BWFRP cable protection tube - Google Patents

Device and process for testing tensile strength of BWFRP cable protection tube Download PDF

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Publication number
CN116148083A
CN116148083A CN202211541725.2A CN202211541725A CN116148083A CN 116148083 A CN116148083 A CN 116148083A CN 202211541725 A CN202211541725 A CN 202211541725A CN 116148083 A CN116148083 A CN 116148083A
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plate
plates
pipeline
adjusting
face
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CN116148083B (en
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莫儒
姚宬
刘俊
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Yingli Jiangsu Electromechanical Co ltd
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Yingli Jiangsu Electromechanical Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/16Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces applied through gearing
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • G01N3/04Chucks

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
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  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention relates to the technical field of pipeline performance test, in particular to a device and a process for testing the tensile strength of a BWFRP cable protection pipe. According to the invention, the hole blocking pieces are arranged to block two sides of the pipeline along with the rotating shaft, so that the influence of water inflow in the pipeline on a test result in the subsequent test is avoided, the swinging plate drives the corresponding pressing pieces to press the pipeline through the mounting blocks, the arc shapes of the pressing pieces are matched with the arc structures at two ends of the pipeline, the pipeline can be fixedly clamped by the corresponding four pressing pieces, the arranged limiting rings are matched with the corresponding swinging plate, the swinging plate continues to swing towards the pipeline, the pressing effect of the corresponding four pressing pieces on the pipeline is ensured, and the problem that the pipeline falls in the stretching process is avoided.

Description

Device and process for testing tensile strength of BWFRP cable protection tube
Technical Field
The invention relates to the technical field of pipeline performance testing, in particular to a device and a process for testing the tensile strength of a BWFRP cable protection pipe.
Background
The cable is also an important component in construction of various electric hydraulic engineering, power grid and the like, and is an essential factor in urban construction, but a protection pipeline is required to be sleeved on the cable in the use process of the cable, so that the cable is prevented from being damaged, the service life of the cable is prolonged, the use environment of the protection pipeline is severe and is underwater for a long time, the quality of the used protection pipeline is required to be tested, and the pipeline is required to be subjected to operations such as local bending and stretching in the installation and setting process, so that the pipeline can be deformed, the pipeline is required to be tested particularly for the tensile strength of the pipeline at the moment, the pipeline after the deformation is observed mainly after the pipeline is stretched at present, and the following problems exist in the test process of the tensile strength of the pipeline: 1. because the pipeline is under water for a long time, the pipeline needs to be tested under water, so the pipeline needs to be clamped after sealing two ends of the pipeline before being stretched, but the pipeline is not clamped stably enough in the stretching process, and the problems of water inflow inside the pipeline and pipeline falling easily occur.
2. Because the pipeline is under water for a long time, the water pressure can influence the stretched pipeline, and the influence received by the pipeline is different when under water of different depths, so that the pipeline in different water depths needs to be tested.
Disclosure of Invention
In order to solve the problems, the invention adopts the following technical scheme: the utility model provides a BWFRP cable protection tube tensile strength testing arrangement, includes the water dipping tank, soaks board, stretching mechanism and adjustment mechanism, the water dipping tank is the box that the upper end opening is inside to be the cavity, and two bilateral symmetry's water dipping tank has all been seted up to the front and back terminal surface of water dipping tank inner chamber, and the slip is provided with electronic slider in the water dipping tank, and the common fixed board that soaks is provided with between all electronic sliders, and the upper end of soaking board is fixed and is provided with the stretching mechanism that is used for stretching the pipeline, and the common fixed adjustment mechanism that is provided with in the left and right sides of stretching mechanism;
the stretching mechanism comprises a transverse moving groove, the upper end face of the soaking plate is provided with a transverse moving groove from left to right, two transverse moving blocks which are symmetrical left and right are arranged in the transverse moving groove in a sliding mode, the upper end faces of the transverse moving blocks are fixedly provided with stepped plates, the upper end faces of three stepped parts of the stepped plates are respectively provided with a placing plate, the left end faces of the placing plates are rotatably provided with rotating shafts, the opposite faces of the two corresponding rotating shafts are fixedly sleeved with rubber hole blocking pieces, the opposite faces of the two corresponding placing plates are respectively provided with four swinging plates which are symmetrical about the axis of the rotating shafts through hinges, the opposite faces of the swinging plates and the corresponding rotating shafts are fixedly sleeved with mounting plates, two mutually symmetrical mounting blocks are fixedly arranged between the mounting plates and the corresponding rotating shafts through rotating compacting pieces, the opposite faces of the corresponding two placing plates are fixedly provided with spring plates which are in one-to-one correspondence with the corresponding swinging plates, and swinging springs are fixedly arranged between the spring plates and the corresponding swinging plates.
As a preferable technical scheme of the invention, the left end face of the placement plate is provided with four moving grooves which are arranged in a matrix from left to right, moving columns are arranged in the moving grooves in a sliding manner, the end faces of the corresponding four moving columns, which are far away from the corresponding swinging plates, are fixedly provided with cylinder plates together, two mutually symmetrical cylinders are fixedly arranged between the cylinder plates and the corresponding placement plates, the other end faces of the corresponding four moving columns are fixedly provided with rectangular limiting rings through connecting plates together, and the opposite faces of the limiting rings and the corresponding swinging plates are provided with laminating plates which are contacted with the corresponding swinging plates through hinging.
As a preferable technical scheme of the invention, the end faces of the limiting rings, which are far away from the corresponding placing plates, are fixedly provided with transverse plates which are in one-to-one correspondence with the swinging plates, the front end face and the rear end face of each transverse plate are fixedly provided with limiting strips, the limiting strips face the corresponding rotating shafts, and the opposite faces of the corresponding limiting strips are fixedly provided with limiting rollers which are matched with the inner side faces of the swinging plates.
As a preferable technical scheme of the invention, the end face of the mounting plate far away from the corresponding placing plate is hinged with the clamping plate, the end face of the clamping plate far away from the pipeline is provided with the clamping groove, the clamping groove is internally provided with the clamping column in a sliding manner, the end face of the clamping column far away from the corresponding clamping plate is fixedly provided with the spring circular plate, the clamping spring is arranged between the spring circular plate and the corresponding clamping plate, the opposite face of the clamping column and the pipeline is fixedly provided with the arc-shaped embracing plate, the end face of the mounting plate far away from the pipeline is fixedly provided with the L-shaped auxiliary plate, the end face of the auxiliary plate far away from the pipeline is provided with the range groove, the auxiliary column is fixedly connected with the corresponding clamping plate, the other end face of the auxiliary column is fixedly provided with the auxiliary circular plate, the opposite face of the auxiliary circular plate and the corresponding auxiliary plate are provided with the auxiliary groove in a T shape from left to right, the end face of the auxiliary plate far away from the corresponding clamping plate is fixedly provided with the auxiliary cylinder, and the telescopic end of the auxiliary cylinder is fixedly provided with the auxiliary rod moving in the horizontal part of the auxiliary groove.
As a preferable technical scheme of the invention, a plurality of rubber strips which are uniformly distributed along the inner side surfaces of the opposite surfaces of the embracing plates and the corresponding pipelines are fixedly arranged.
As a preferable technical scheme of the invention, the upper end surface of the soaking plate is rotatably provided with two gear shafts which are symmetrical in front and back, the two gear shafts are fixedly sleeved with stretching gears, the opposite surfaces of the two stepped plates are fixedly provided with rack groups which are matched with the stretching gears one by one, the rack groups comprise two stretching racks which are symmetrical about the axial center of the corresponding gear shaft, and the stretching racks are fixedly connected with the corresponding stepped plates.
As a preferable technical scheme of the invention, the adjusting mechanism comprises T-shaped grooves, the far surfaces of two stepped plates are respectively provided with a T-shaped groove from top to bottom, three T-shaped blocks are slidably arranged in the T-shaped grooves, the end surface of the uppermost T-shaped block far away from the stepped plate is fixedly provided with L-shaped pieces, the end surfaces of the remaining two T-shaped blocks far away from the stepped plate are fixedly provided with adjusting pieces, the upper end surface of each stepped part of the stepped plate is respectively provided with four lifting grooves which are distributed in a matrix, lifting columns which are fixedly connected with corresponding placing plates are slidably arranged in the lifting grooves, the upper end surfaces of the corresponding lifting columns are fixedly connected with the corresponding placing plates, the upper end surfaces of the platform plates are fixedly connected with the corresponding placing plates through connecting plates, the end surfaces of the stepped plates are fixedly provided with two fixing plates which are vertically symmetrical, threaded rods are rotatably arranged between the two fixing plates, and the threaded rods are in threaded fit with the L-shaped pieces and the adjusting pieces.
As a preferable technical scheme of the invention, the adjusting piece comprises an adjusting plate, the end face of the T-shaped block, which is far away from the stepped plate, is fixedly provided with the adjusting plate, the front end face of the adjusting plate is provided with two adjusting grooves which are symmetrical left and right and are T-shaped from top to bottom, adjusting strips are slidably arranged in the adjusting grooves, the adjusting blocks are fixedly arranged on the upper end faces of the corresponding two adjusting strips together, the upper end faces of the adjusting plate are fixedly provided with adjusting cylinders with telescopic ends fixedly connected with the corresponding adjusting blocks, and the front end faces below the two adjusting strips are fixedly connected with the corresponding connecting plates on the placing plates through matching blocks which are L-shaped.
The invention has the beneficial effects that: 1. according to the invention, the hole blocking pieces are arranged to block two sides of the pipeline along with the rotating shaft, so that the influence of water inflow in the pipeline on a test result in the subsequent test is avoided, and at the moment, the swinging plate drives the corresponding pressing pieces to press the pipeline through the mounting blocks, and the arc shapes of the pressing pieces are matched with the arc structures at two ends of the pipeline, so that the pipeline can be fixedly clamped by the corresponding four pressing pieces, and the problem that the pipeline falls in the stretching process is avoided.
2. The limiting rings are matched with the corresponding swinging plates, so that the swinging plates continue to swing towards the pipeline, meanwhile, the compression effect of the corresponding four compression pieces on the pipeline is ensured, and the problem that the pipeline falls off in the stretching process is avoided.
3. According to the invention, the adjusting strips are arranged in the adjusting grooves to slide in the adjusting grooves so that the corresponding platform plates synchronously move, so that the height of the pipeline at the two lower steps on the platform plates can be adjusted again, meanwhile, the pipeline at the corresponding position can be moved up and down to the same height position as the adjacent pipeline through the work of the adjusting cylinder, and the appearance of the pipelines at the two different positions can be conveniently compared and observed after stretching, and the comparison data collection is convenient, so that the requirement of a tensile test is met.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of a part of the structure of the present invention.
Fig. 3 is an enlarged view of fig. 2 a in the present invention.
Fig. 4 is a schematic view in partial cross-section of the stretching mechanism of the present invention.
Fig. 5 is an enlarged view of the present invention at B in fig. 4.
Fig. 6 is an enlarged view of C in fig. 4 in the present invention.
Fig. 7 is a schematic perspective view of a protective pipe according to the present invention.
In the figure: 1. a water dipping tank; 10. a water immersion tank; 2. a water immersing plate; 3. a stretching mechanism; 30. a transverse moving groove; 300. a step plate; 301. placing a plate; 302. a rotating shaft; 303. a hole blocking member; 304. a swinging plate; 305. a mounting plate; 306. a pressing member; 307. a spring plate; 308. a swing spring; 31. a moving column; 310. a cylinder plate; 311. a confinement ring; 312. bonding plates; 32. a transverse plate; 320. a restriction strip; 321. a restricting roller; 33. a clamping plate; 330. clamping the column; 331. a clamping spring; 332. embracing the plate; 333. an auxiliary plate; 334. a range slot; 335. an auxiliary column; 336. an auxiliary circular plate; 337. an auxiliary groove; 338. an auxiliary cylinder; 339. an auxiliary lever; 34. a rubber strip; 35. a stretching gear; 350. stretching the rack; 4. an adjusting mechanism; 40. a T-shaped groove; 400. an L-shaped member; 401. an adjusting member; 402. lifting columns; 403. a platform plate; 404. a fixing plate; 405. a threaded rod; 41. an adjusting plate; 410. an adjusting block; 411. an adjustment bar; 412. and adjusting the cylinder.
Detailed Description
Embodiments of the invention are described in detail below with reference to the attached drawings, but the invention can be implemented in a number of different ways, which are defined and covered by the claims.
Referring to fig. 1 and 7, a tensile strength testing device for a bfrp cable protection tube comprises a water immersion tank 1, a water immersion plate 2, a stretching mechanism 3 and an adjusting mechanism 4, wherein the water immersion tank 1 is a tank body with a cavity inside an opening at the upper end, two water immersion tanks 10 which are bilaterally symmetrical are respectively arranged on the front end face and the rear end face of an inner cavity of the water immersion tank 1, electric sliding blocks are slidably arranged in the water immersion tanks 10, the water immersion plate 2 is fixedly arranged between all the electric sliding blocks, the stretching mechanism 3 for stretching a pipeline is fixedly arranged on the upper end face of the water immersion plate 2, and the adjusting mechanism 4 is fixedly arranged on the left side and the right side of the stretching mechanism 3;
referring to fig. 3 and 4, the stretching mechanism 3 includes a traversing groove 30, the upper end surface of the immersing plate 2 is provided with a traversing groove 30 from left to right, two laterally symmetrical traversing blocks are slidably disposed in the traversing groove 30, the upper end surface of each traversing block is fixedly provided with a step plate 300, the upper end surfaces of three step portions of the step plates 300 are respectively provided with a placing plate 301, the left end surface of each placing plate 301 is rotatably provided with a rotating shaft 302, opposite surfaces of two corresponding rotating shafts 302 are respectively fixedly sleeved with a rubber hole blocking member 303, opposite surfaces of two corresponding placing plates 301 are respectively provided with a mounting plate 305 by hinging four swinging plates 304 which are centrally symmetrical with respect to the axis of the rotating shaft 302, opposite surfaces of the swinging plates 304 and the corresponding rotating shafts 302 are respectively provided with a mounting plate 305, opposite surfaces of the mounting plates 305 and the corresponding rotating shafts 302 are respectively fixedly provided with two mutually symmetrical mounting blocks, a pressing member 306 which is rotatably disposed through the rotating shafts between the corresponding two mounting blocks, opposite surfaces of the corresponding two placing plates 301 are respectively fixedly provided with spring plates 307 which are respectively corresponding to the corresponding swinging plates 304, and swinging springs 308 are respectively fixedly disposed between the plates 307 and the corresponding swinging plates.
During operation, the electric sliding blocks in the water soaking tank 10 work to enable the water soaking plate 2 to drive the corresponding stepped plate 300 to move upwards, then the stepped part of the pipeline to be subjected to tensile test is moved to the stepped plate 300 through the external existing device, and meanwhile, the transversely moving blocks slide in the transversely moving tank 30 to enable the stepped plate to drive the placing plate 301 to move, so that the rotating shafts 302 on the left placing plate 301 and the right placing plate 301 are mutually matched and inserted into the pipeline placed at the moment and play a role of bearing the pipeline, meanwhile, the hole blocking pieces 303 in the corresponding positions block two sides of the pipeline along with the rotating shafts 302, the effect of the test result caused by water inflow in the pipeline during subsequent test is avoided, and the swinging plate 304 swings towards the placed pipeline under the elastic force of the corresponding swinging springs 308, so that the swinging plate 304 drives the corresponding pressing pieces 306 to press the pipeline through the mounting blocks, the corresponding four pressing pieces 306 can be fixedly clamped with the arc structures at two ends of the pipeline, the pressing pieces 306 are convenient to press the surfaces of the pipeline, and then the electric sliding blocks in the water soaking tank 10 work to enable the pipeline 300 to be subjected to tensile test in the water soaking tank 1.
Referring to fig. 3 and 4, four moving slots which are arranged in a matrix from left to right are formed in the left end face of the placement plate 301, moving columns 31 are slidably arranged in the moving slots, air cylinder plates 310 are fixedly arranged on the end faces, away from the corresponding swinging plates 304, of the corresponding four moving columns 31, two mutually symmetrical air cylinders are fixedly arranged between the air cylinder plates 310 and the corresponding placement plate 301, rectangular limiting rings 311 are fixedly arranged on the other end faces of the corresponding four moving columns 31 through connecting plates, and attaching plates 312 which are in contact with the corresponding swinging plates 304 are hinged on the opposite faces of the limiting rings 311 and the corresponding swinging plates 304.
After the swinging plate 304 drives the corresponding pressing piece 306 to press and clamp the placed pipeline, the cylinder works to enable the telescopic end face of the corresponding pressing piece 306 to extend out, so that the cylinder plate 310 drives the movable column 31 to be far away from the placed pipeline, the limiting ring 311 and the corresponding swinging plate 304 are mutually matched to enable the swinging plate 304 to continuously swing towards the pipeline, meanwhile, the pressing effect of the corresponding four pressing pieces 306 on the pipeline is guaranteed, the problem that the pipeline falls off in the stretching process is avoided, the arranged attaching plate 312 is hinged on the limiting ring 311 and then contacts with the swinging plate 304, the stress of the swinging plate 304 is uniform when the limiting ring 311 is matched with the swinging plate 304, and the phenomenon that the device operation is influenced due to the fact that the corresponding four swinging plates 304 are not synchronous with the matching of the limiting ring 311 is avoided.
Referring to fig. 3 and 5, the end surfaces of the limiting rings 311 away from the corresponding placing plates 301 are fixedly provided with transverse plates 32 corresponding to the swinging plates 304 one by one, both front and rear end surfaces of the transverse plates 32 are fixedly provided with limiting strips 320, the limiting strips 320 face the corresponding rotating shafts 302, and opposite surfaces of the two limiting strips 320 are fixedly provided with limiting rollers 321 mutually matched with inner side surfaces of the swinging plates 304.
When the pipeline is placed, the air cylinders on the placing plates 301 work, the telescopic ends of the air cylinders drive the corresponding air cylinder plates 310 to be close to the corresponding placing plates 301, so that the air cylinder plates 310 enable the corresponding four moving columns 31 to be close to the pipeline synchronously, the limiting rings 311 at the moment are far away from the corresponding placing plates 301, the limiting rollers 321 on the limiting strips 320 and the swinging plates 304 are far away from the corresponding placing plates 301, the swinging plates 304 are enabled to swing and lift in the direction far away from the pipeline, and the pressing pieces 306 are enabled to be far away from the corresponding pipeline, so that the pipeline is placed on the rotating shafts 302 and the hole blocking pieces 303 conveniently.
Referring to fig. 4 and 6, the end surface of the mounting plate 305 far away from the corresponding placing plate 301 is hinged with a clamping plate 33, the end surface of the clamping plate 33 far away from the pipeline is provided with a clamping groove, a clamping column 330 is slidably arranged in the clamping groove, the end surface of the clamping column 330 far away from the corresponding clamping plate 33 is fixedly provided with a spring circular plate, a clamping spring 331 is arranged between the spring circular plate and the corresponding clamping plate 33, the opposite surface of the clamping column 330 and the pipeline is fixedly provided with an arc-shaped holding plate 332, the end surface of the mounting plate 305 far away from the pipeline is fixedly provided with an L-shaped auxiliary plate 333, the end surface of the auxiliary plate 333 far away from the pipeline is provided with a range groove 334, an auxiliary column 335 is arranged in the range groove 334, the auxiliary column 335 is fixedly connected with the corresponding clamping plate 33, the other end surface of the auxiliary column 335 is fixedly provided with an auxiliary circular plate 336, the opposite surface of the auxiliary circular plate 336 and the corresponding auxiliary plate 333 are provided with an auxiliary groove 337 in a T shape from left to right, the end surface of the auxiliary plate 333 far away from the corresponding clamping plate 33 is fixedly provided with an auxiliary cylinder 338, and the telescopic end of the auxiliary cylinder 338 is fixedly provided with an auxiliary rod moving in the horizontal part of the auxiliary groove 337.
During operation, in the process that the pressing piece 306 presses the placed pipeline, the auxiliary plate 333 moves to a designated position along with the swinging of the swinging plate 304, then the auxiliary cylinder 338 works to enable the telescopic end of the auxiliary plate to retract, thereby driving the auxiliary circular plate 336 to move towards the pipeline through the auxiliary rod 339, the auxiliary column 335 at this time moves in the range groove 334, finally enabling the corresponding holding plate 332 to cling to the placed pipeline, and the four corresponding holding plates 332 mutually cooperate to hold the placed pipeline while limiting the same, so that subsequent tensile testing is facilitated, after the follow-up pulling operation is performed or the pipe diameter of the placed pipeline is smaller, the swinging plate 304 drives the pressing piece 306 to press the same, the clamping plate 33 at this time is not flush with the corresponding mounting plate 305, and the holding plate 332 at this time can keep a state clinging to the pipeline under the elastic force of the corresponding clamping spring 331, so as to meet the requirement in the tensile operation.
Referring to fig. 4, a plurality of rubber strips 34 are fixedly disposed on the opposite surfaces of the embracing plate 332 and the corresponding pipe, and are uniformly distributed along the inner side surfaces thereof.
During operation, after the pipe is held by the holding plate 332, the rubber strip 34 is in direct contact with the corresponding pipe, and the rubber strip 34 is deformed under the action of the elastic force of the clamping spring 331 and the operation of the auxiliary cylinder 338, so that the friction force between the holding plate 332 and the pipe is increased, the sealing condition inside the pipe is prevented from being influenced due to the autorotation between the pipe and the rotating shaft 302, and the subsequent stretching operation is facilitated.
Referring to fig. 2, the upper end surface of the immersing plate 2 is rotatably provided with two gear shafts which are symmetrical in front and back, the two gear shafts are fixedly sleeved with the stretching gears 35, the opposite surfaces of the two step plates 300 are fixedly provided with rack groups matched with the stretching gears 35 in a one-to-one correspondence manner, each rack group comprises two stretching racks 350 which are symmetrical about the axis center of the corresponding gear shaft, and the stretching racks 350 are fixedly connected with the corresponding step plates 300.
After the pipeline is placed, the electric sliding blocks in the soaking tank 10 work to enable the stepped plates 300 to move downwards, the soaking tank 1 is soaked, then the external existing motor works to drive the corresponding stretching gears 35 to rotate through the gear shafts, so that the two stepped plates 300 are synchronously away from each other through the mutual meshing between the stretching gears 35 and the corresponding stretching racks 350, stretching operation of the placed pipeline, namely stretching of the pipeline at different stepped positions on the stepped plates 300 is achieved, the electric sliding blocks in the soaking tank 10 work to enable the stepped plates 300 to move upwards, and at the moment, water on the surface of the pipeline is manually wiped dry, and influences on the pipeline when stretching at different water surface depths are observed.
Referring to fig. 2, the adjusting mechanism 4 includes a T-shaped slot 40, two T-shaped slots 40 are respectively formed on the far surfaces of the step plates 300, three T-shaped blocks are slidably disposed in the T-shaped slots 40, an L-shaped piece 400 is fixedly disposed on the end surface of the uppermost T-shaped block far away from the step plates 300, two adjusting pieces 401 are fixedly disposed on the end surfaces of the remaining two T-shaped blocks far away from the step plates 300, four lifting slots in matrix arrangement are respectively formed on the upper end surface of each step portion of the step plates 300, lifting columns 402 fixedly connected with the corresponding placement plates 301 are slidably disposed in the lifting slots, a platform plate 403 is fixedly disposed on the upper end surfaces of the corresponding lifting columns 402, the upper end surfaces of the platform plates 403 are fixedly connected with the corresponding placement plates 301, the L-shaped pieces 400 and the adjusting pieces 401 are fixedly connected with the platform plates 403 at corresponding positions through connecting plates, two fixing plates 404 which are vertically symmetrical are fixedly disposed on the end surfaces of the step plates 300, threaded rods 405 are rotatably disposed between the two fixing plates 404, and the threaded rods 405 are matched with the L-shaped pieces 401.
During operation, when the stretching mechanism 3 stretches, the outside existing motor works to drive the threaded rod 405 to rotate, through the mutual cooperation between the threaded rod 405 and the L-shaped piece 400 and the adjusting pieces 401, the L-shaped piece 400 and the two adjusting pieces 401 synchronously move in the vertical direction, so that the depth of the corresponding pipeline on the placing plate 301 below the water surface can be adjusted through the platform plate 403, the hydraulic environment during stretching of the pipeline is adjusted, and the set T-shaped block slides in the T-shaped groove 40, so that the stability of the L-shaped piece 400 and the two adjusting pieces 401 during operation is improved.
Referring to fig. 2, the adjusting member 401 includes an adjusting plate 41, the end surface of the T-shaped block away from the stepped plate 300 is fixedly provided with the adjusting plate 41, the front end surface of the adjusting plate 41 is provided with two adjusting slots which are symmetric left and right and are T-shaped from top to bottom, adjusting bars 411 are slidably disposed in the adjusting slots, the upper end surfaces of the corresponding two adjusting bars 411 are fixedly provided with adjusting blocks 410 together, the upper end surface of the adjusting plate 41 is fixedly provided with an adjusting cylinder 412 with telescopic ends fixedly connected with the corresponding adjusting blocks 410, and the front end surfaces below the two adjusting bars 411 are fixedly connected with the corresponding connecting plates on the placing plate 301 through matching blocks which are L-shaped.
During operation, the pipeline is adjusted in the underwater depth process, the adjusting cylinder 412 works to enable the telescopic end of the adjusting cylinder to drive the corresponding adjusting block 410 to move, the adjusting strip 411 slides in the adjusting groove to enable the corresponding platform plate 403 to synchronously move, so that the height of the pipeline on the two lower steps on the step plate 300 can be adjusted again, meanwhile, the pipeline at the corresponding position can be moved up and down to the position with the same height as the adjacent pipeline through the operation of the adjusting cylinder 412, and the appearance of the pipeline at two different positions is subjected to comparison observation and comparison data collection after stretching, thereby meeting the requirements of tensile test.
In addition, the invention also provides a process for testing the tensile strength of the BWFRP cable protective tube, which comprises the following steps of: s1, placing a pipeline: firstly, the electric sliding blocks in the water soaking tank 10 work to enable the water soaking plate 2 to drive the corresponding stepped plate 300 to move upwards, and enable the rotating shafts 302 on the left placing plate 301 and the right placing plate 301 to be mutually matched and inserted into the pipeline placed at the moment and play a role in bearing the pipeline, meanwhile, the hole blocking pieces 303 at the corresponding positions block two sides of the pipeline along with the rotating shafts 302, and the swinging plates 304 swing towards the placed pipeline under the action of the elastic force of the corresponding swinging springs 308, so that the swinging plates 304 drive the corresponding pressing pieces 306 to press the pipeline through the mounting blocks, and the arc shapes of the pressing pieces 306 are mutually matched with the arc structures at two ends of the pipeline, so that the corresponding four pressing pieces 306 can fixedly clamp the pipeline.
S2, cohesion clamping: in the process of compacting the placed pipeline by the compacting member 306, the auxiliary plate 333 moves to a designated position along with the swinging of the swinging plate 304, then the auxiliary cylinder 338 works to enable the telescopic end of the auxiliary plate to retract, so that the auxiliary rod 339 drives the auxiliary circular plate 336 to move towards the pipeline, the auxiliary column 335 at the moment moves in the range groove 334, the corresponding embracing plate 332 is finally mutually clung to the placed pipeline, and the four corresponding embracing plates 332 mutually cooperate to hold the placed pipeline and limit the placed pipeline.
S3, stretching adjustment: the external existing motor works to drive the threaded rod 405 to rotate, and through mutual cooperation between the threaded rod 405 and the L-shaped piece 400 and the adjusting piece 401, the L-shaped piece 400 and the two adjusting pieces 401 synchronously move in the vertical direction, so that the depth of the corresponding pipeline on the placing plate 301 below the water surface can be adjusted through the platform plate 403, and the hydraulic environment during stretching of the pipeline is adjusted.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (8)

1. The utility model provides a BWFRP cable protection tube tensile strength testing arrangement, includes water dipping tank (1), soaking plate (2), stretching mechanism (3) and adjustment mechanism (4), its characterized in that: the water immersion tank (1) is a tank body with a cavity in an opening at the upper end, two water immersion tanks (10) which are bilaterally symmetrical are respectively arranged on the front end face and the rear end face of the inner cavity of the water immersion tank (1), electric sliding blocks are arranged in the water immersion tanks (10) in a sliding mode, a water immersion plate (2) is fixedly arranged between all the electric sliding blocks, a stretching mechanism (3) for stretching a pipeline is fixedly arranged on the upper end face of the water immersion plate (2), and an adjusting mechanism (4) is fixedly arranged on the left side and the right side of the stretching mechanism (3);
the stretching mechanism (3) comprises a transverse moving groove (30), transverse moving grooves (30) are formed in the upper end face of the soaking plate (2) from left to right, two transversely moving blocks which are symmetrical left and right are fixedly arranged on the upper end face of each transverse moving block in a sliding mode, a step plate (300) is fixedly arranged on the upper end face of each step portion of each step plate (300), a placing plate (301) is arranged on the upper end face of each step portion of each step plate, a rotating shaft (302) is rotatably arranged on the left end face of each placing plate (301), hole blocking pieces (303) made of rubber materials are fixedly sleeved on the opposite faces of the corresponding rotating shafts (302), four swinging plates (304) which are symmetrical about the axis center of the rotating shafts (302) are hinged to each other are fixedly sleeved on the opposite faces of the corresponding swinging plates (304), two mutually symmetrical mounting blocks which are fixedly arranged on the opposite faces of the corresponding rotating shafts (302), pressing pieces (306) which are rotatably arranged through the rotating shafts are arranged between the corresponding two mounting blocks, and springs (307) are fixedly arranged between the corresponding swinging plates (307) and the corresponding swinging plates (307).
2. The bfrp cable protective tube tensile strength testing apparatus of claim 1, wherein: four from left to right and be the removal groove that the matrix was arranged is offered to the left end face of placing board (301), and the slip is provided with removal post (31) in the removal groove, and the terminal surface that corresponding swing board (304) were kept away from to four removal posts (31) of correspondence is fixed together and is provided with cylinder board (310), fixedly between cylinder board (310) and the corresponding placing board (301) is provided with two mutually symmetrical cylinders, and the other terminal surface of four removal posts (31) of correspondence is fixed through the connecting plate and is provided with rectangular restriction ring (311) jointly, and the opposite face of restriction ring (311) and corresponding swing board (304) is provided with laminating board (312) of contact with corresponding swing board (304) through articulated.
3. The bfrp cable protective tube tensile strength testing apparatus of claim 2, wherein: the limiting rings (311) are far away from the corresponding end faces of the placing plates (301) and fixedly provided with transverse plates (32) corresponding to the swinging plates (304), limiting strips (320) are fixedly arranged on the front end face and the rear end face of each transverse plate (32), the limiting strips (320) face the corresponding rotating shafts (302), and limiting rollers (321) matched with the inner side faces of the swinging plates (304) are fixedly arranged on the opposite faces of the two limiting strips (320).
4. The bfrp cable protective tube tensile strength testing apparatus of claim 1, wherein: the mounting plate (305) is kept away from the terminal surface of corresponding placing plate (301) and articulates there is clamping plate (33), clamping groove has been seted up to the terminal surface of keeping away from of clamping plate (33), clamping post (330) are provided with in the clamping groove in the slip, clamping post (330) are kept away from the terminal surface fixed of corresponding clamping plate (33) and are provided with clamping spring (331) between spring round plate and the corresponding clamping plate (33), clamping post (330) are provided with curved embracing plate (332) with the opposite face of pipeline is fixed, the terminal surface fixed of keeping away from of mounting plate (305) is provided with auxiliary plate (333) of L shape, range groove (334) have been seted up to the terminal surface of keeping away from of auxiliary plate (333) in the pipeline, be provided with auxiliary post (335) in range groove (334), auxiliary post (335) and corresponding clamping plate (33) fixed connection, and the other terminal surface fixed of auxiliary post (335) is provided with auxiliary round plate (336), auxiliary cylinder (337) from left to right T shape are seted up to the opposite face of corresponding auxiliary plate (333), auxiliary plate (333) is kept away from fixed cylinder (338) and is provided with auxiliary cylinder (338) and moves in auxiliary cylinder (338) fixed portion.
5. The bfrp cable protective tube tensile strength testing apparatus of claim 4, wherein: the opposite surfaces of the embracing plate (332) and the corresponding pipeline are fixedly provided with a plurality of rubber strips (34) which are uniformly distributed along the inner side surfaces of the embracing plate.
6. The bfrp cable protective tube tensile strength testing apparatus of claim 1, wherein: the upper end face of the soaking plate (2) is rotatably provided with two gear shafts which are symmetrical front and back, the two gear shafts are fixedly sleeved with stretching gears (35), the opposite faces of the two stepped plates (300) are fixedly provided with rack groups which are matched with the stretching gears (35) in a one-to-one correspondence mode, each rack group comprises two stretching racks (350) which are symmetrical relative to the axis center of the corresponding gear shaft, and the stretching racks (350) are fixedly connected with the corresponding stepped plates (300).
7. The bfrp cable protective tube tensile strength testing apparatus of claim 1, wherein: the adjusting mechanism (4) comprises T-shaped grooves (40), two T-shaped grooves (40) from top to bottom are formed in the far away surfaces of the stepped plates (300), three T-shaped blocks are arranged in the T-shaped grooves (40) in a sliding mode, L-shaped pieces (400) are fixedly arranged on the end faces of the uppermost T-shaped blocks far away from the stepped plates (300), adjusting pieces (401) are fixedly arranged on the end faces of the remaining two T-shaped blocks far away from the stepped plates (300), four lifting grooves which are arranged in a matrix are formed in the upper end faces of each stepped portion of the stepped plates (300), lifting columns (402) fixedly connected with corresponding placing plates (301) are arranged in the lifting grooves in a sliding mode, flat plates (403) are fixedly arranged on the upper end faces of the corresponding lifting columns (402) in a mutual mode, the upper end faces of the flat plates (403) are fixedly connected with the corresponding placing plates (301), the L-shaped pieces (400) and the adjusting pieces (401) are fixedly connected with the flat plates (403) at corresponding positions through connecting plates, two upper end faces of the stepped plates (300) are fixedly arranged with the two upper and lower fixing plates (404) which are in a symmetric mode, and threaded rods (405) are matched with the threaded rods (405) in a threaded mode.
8. The bfrp cable protective tube tensile strength testing apparatus of claim 7, further characterized in that: the adjusting piece (401) comprises an adjusting plate (41), the end face of the T-shaped block, which is far away from the stepped plate (300), is fixedly provided with the adjusting plate (41), the front end face of the adjusting plate (41) is provided with two adjusting grooves which are symmetrical left and right and are T-shaped from top to bottom, adjusting strips (411) are slidably arranged in the adjusting grooves, adjusting blocks (410) are fixedly arranged on the upper end faces of the two adjusting strips (411) in a mutual fixing mode, the upper end faces of the adjusting plate (41) are fixedly provided with adjusting cylinders (412) with telescopic ends fixedly connected with the corresponding adjusting blocks (410), and the front end faces below the two adjusting strips (411) are fixedly connected with corresponding connecting plates on the placing plate (301) through matching blocks which are L-shaped.
CN202211541725.2A 2022-12-02 2022-12-02 Device and process for testing tensile strength of BWFRP cable protection tube Active CN116148083B (en)

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