CN116558955A - Performance test system for precast concrete structural member - Google Patents
Performance test system for precast concrete structural member Download PDFInfo
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- CN116558955A CN116558955A CN202310393223.8A CN202310393223A CN116558955A CN 116558955 A CN116558955 A CN 116558955A CN 202310393223 A CN202310393223 A CN 202310393223A CN 116558955 A CN116558955 A CN 116558955A
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 16
- 238000011056 performance test Methods 0.000 title description 6
- 238000012360 testing method Methods 0.000 claims abstract description 163
- 239000002699 waste material Substances 0.000 claims abstract description 41
- 238000012937 correction Methods 0.000 claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 230000001681 protective effect Effects 0.000 claims abstract description 10
- 238000005452 bending Methods 0.000 claims description 24
- 238000004140 cleaning Methods 0.000 claims description 22
- 238000010009 beating Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 7
- 230000006978 adaptation Effects 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 239000004567 concrete Substances 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 9
- 238000007789 sealing Methods 0.000 description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 5
- 235000017491 Bambusa tulda Nutrition 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 5
- 230000009471 action Effects 0.000 description 5
- 239000011425 bamboo Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000012669 compression test Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/303—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated only by free-falling weight
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to the technical field of concrete performance testing, in particular to a performance testing system for a precast concrete structural member. The technical proposal comprises: the test device comprises a fixed base, a test control box and a test frame, wherein the test control box and the test frame are fixed on the fixed base, a hydraulic lifting table controlled by the test control box is arranged in the test frame, a threaded adjusting rod is connected to the top of the test frame in a threaded manner, and a test plane ball head correspondingly matched with the hydraulic lifting table is fixed at the lower end of the threaded adjusting rod; the rear side of the test frame is fixed with a delay releasing mechanism for receiving waste, and the delay releasing mechanism comprises an outer protective shell fixed at the rear side of the test frame, and the inner side of the outer protective shell is rotationally connected with a long shaft. According to the invention, after single correction operation in the test process, the ball head and the test piece do not need to be corrected subsequently; meanwhile, the ball head can be subjected to secondary correction, so that the correction accuracy is greatly improved, the rigor of the test process is improved, and the accuracy of the test result is improved.
Description
Technical Field
The invention relates to the technical field of concrete performance testing, in particular to a performance testing system for a precast concrete structural member.
Background
Concrete is also called concrete, and is classified into various types according to the content of the formulation and the content of the formulation in preparation, and a preliminary experiment is required before the concrete is manufactured into a required structural member according to the formulation, and the performance of the concrete in the obtained formulation is tested, wherein the test content comprises the compression strength test for the concrete.
The cube compressive strength is the ultimate compressive strength of concrete measured by standard test method through 28d curing under the conditions of humidity environment with relative humidity of more than 95% or no flowing Ca (OH) 2 saturated solution curing at the temperature of (20+/-2) DEG C and with the side length of 150mm standard cube test piece manufactured according to the concrete structure engineering construction quality acceptance Specification (GB 50204-2002), and is expressed by fcu. For the equipment for testing the compressive strength of the cube, errors need to be reduced when the equipment is used to reduce the influence on the test result, and for the testing process, the error is: firstly, placing the cube on a hydraulic table surface, cleaning the table surface, continuously and stably pressurizing through a control mechanism on operation equipment, when the surface of the cube is cracked or broken and falls, immediately stopping pressure supply through observation, and in the subsequent pressure stabilizing process, the cube can be partially broken, and meanwhile, the upper ball head used for testing can be inclined, and then test data can be obtained according to test values on the control equipment.
While some operations need to be noted in the test flow to reduce test errors, such as: the cube is required to be placed at the center of a hydraulic lifting table of the test equipment; the upper ball head of the test equipment is required to be kept parallel to the lower hydraulic table during the test; in the existing test flow, the steps need to be manually operated in steps, and the test result has larger error for operators with unskilled adjustment operation.
Disclosure of Invention
The invention aims at solving the problems in the background technology and provides a precast concrete structure member performance test system capable of automatically correcting the concrete placement position and the upper ball head horizontal position.
The technical scheme of the invention is as follows: the performance test system for the precast concrete structural member comprises a fixed base, a test control box and a test frame, wherein the test control box and the test frame are fixed on the fixed base, a hydraulic lifting table controlled by the test control box is arranged in the test frame, a threaded adjusting rod is connected to the top of the test frame in a threaded manner, and a test plane ball head correspondingly matched with the hydraulic lifting table is fixed at the lower end of the threaded adjusting rod;
the device comprises a test frame, a hydraulic lifting table, a waste storage mechanism, a delay releasing mechanism, a long shaft, a receiving plate and a gas bin assembly, wherein the delay releasing mechanism is fixedly arranged at the rear side of the test frame and used for receiving waste, the delay releasing mechanism comprises an outer protective shell fixed at the rear side of the test frame, the inner side of the outer protective shell is rotationally connected with the long shaft, the receiving plate is fixedly connected with the rear end of the hydraulic lifting table and used for temporarily storing the waste, and the two ends of the long shaft penetrate through the outer protective shell and are fixedly provided with the gas bin assembly which can realize delayed falling of the waste through slowly sucking air;
the screw thread adjusting rod is connected with a correcting mechanism which is arranged at the inner side of the test frame and corrects the test piece at the center position of the table top of the hydraulic lifting table, the correcting mechanism comprises an upper rod which is movably sleeved on the screw thread adjusting rod, two ends of the upper rod are respectively fixed with a long column penetrating through the top of the test frame and extending to the inner side of the test frame, two long columns are fixed with square frames, four corners of each square frame are connected with four fixed circular shafts connected end to end through lower edge columns, and each fixed circular shaft is provided with a striking assembly;
and each striking component is connected with an automatic telescopic component which is used for assisting in correcting the horizontal position of the test plane ball head and is slowly pressurized through the air bin component through a bending plate.
Preferably, the front side of the test frame is provided with a cleaning component for cleaning waste materials on the table top of the hydraulic lifting table, the cleaning component comprises an installation side plate fixed on one side of the test frame, a first telescopic device is fixed on the installation side plate, and a cleaning plate contacted with the table top of the hydraulic lifting table is fixed at the telescopic end of the first telescopic device.
Preferably, the left side of test frame is provided with the feeding subassembly that flushes with hydraulic lifting table mesa and carries out propelling movement test piece, feeding mechanism is including fixing the temporary placing table on test frame, temporary placing bench is fixed with expansion bend second, the flexible end of expansion bend second is fixed with the contact plate that lower tip and hydraulic lifting table mesa flush.
Preferably, the gas storehouse subassembly is including fixing the connection swing arm at major axis both ends, one side of connecting the swing arm is fixed with short round bar, two short round bar overlaps jointly and is equipped with the adaptation slider, the downside of adaptation slider is connected with the sealed section of thick bamboo of fixing on outer shell casing, the inboard of sealed section of thick bamboo slides and is provided with the piston dish, the upside of piston dish is fixed with the connecting rod fixed with the adaptation slider, the top is provided with the spring in piston dish and the sealed section of thick bamboo, the downside of sealed section of thick bamboo is connected with the regulation pneumatic valve, the upside of sealed section of thick bamboo is connected with the extension pipe.
Preferably, the beating component comprises a fixed sleeve fixed on a fixed circular shaft, a bending sleeve part arranged on the fixed circular shaft in a movable sleeve mode is arranged on one side of the fixed sleeve, a torsion spring is fixed between the bending sleeve part and the fixed sleeve, a beating folded plate for beating a test piece is fixed on the bending sleeve part, a thin shaft is fixed on the bending sleeve part, right-angle sleeves are sleeved between the end parts of two adjacent thin shafts, traction ropes are connected to the two right-angle sleeves in axis symmetry, and the free ends of the two traction ropes penetrate through the top of the test frame and are connected with wedge blocks located on the lower side of the long shaft.
Preferably, the automatic telescopic component comprises a temporary storage hollow ring fixed on the square frame, the temporary storage hollow ring is connected with an extension pipe through a first air pipe, a hollow column connected with a bending plate is connected to the lower side of the temporary storage hollow ring through a second air pipe, a small piston is arranged in the hollow column in a sliding mode, a correction rod penetrating through the inner bottom of the hollow column is connected to the small piston, and an exhaust hole is formed in the bottom of the hollow column.
Preferably, the adapting slide piece comprises two long groove plates movably sleeved on the short round rod, and the two long groove plates are jointly fixed with a same connecting rod fixed with the connecting rod.
Preferably, a collection bin for collecting waste is arranged at the rear side of the fixed base.
Compared with the prior art, the invention has the following beneficial technical effects:
the waste after being tested is cleaned through the cleaning component, the table top of the hydraulic lifting table is kept clean, the added feeding component can send the test piece to the table top of the hydraulic lifting table, automatic operation can be realized through adding a programming controller and adding a proper sensor outside, labor intensity is reduced, and operation steps of workers are simplified;
the waste pushed by the cleaning component is temporarily placed through the set delay throwing mechanism, and because the additionally-arranged air bin component has the function of slowly sucking air, when the waste presses down the receiving plate through gravity, the receiving plate can be rotated to a proper size to completely throw the waste through a certain time, in the waiting time, the test piece can be placed on the temporary placing table again, the test piece is sent to the hydraulic lifting table through the feeding component, after the test piece is placed, the waste falling for a certain time falls down, falls on the wedge block along with free falling body movement, impacts the wedge block, pulls the pulling rope to prompt the striking component to be instantaneously pulled, and then the positioning correction is carried out on the test piece through the synchronous rotation function of four striking flaps on the striking component;
through the waste material propelling movement to the joint board, in the rotation in-process of joint board, the air is slowly got into through the regulation pneumatic valve in the piston dish bottom that moves, the air that the piston dish extruded will get into temporary storage empty ring and then distribute in the hollow post, make the little piston connection's in the hollow post correction pole down extend, carry out first synchronous correction to the test plane bulb, because after the waste material falls down, the wedge can rebound voluntarily, hit the automatic flexible subassembly that the subassembly is connected and will carry the correction pole that is extended and the test plane bulb upside and hit, carry out secondary correction work, because the gas storehouse subassembly that sets up needs the time to reset, the correction pole that is led to extend by atmospheric pressure will keep the extension state, therefore, the correction pole at this moment provides under the condition of certain effort through the atmospheric pressure, possess the effect of reinforcing correction test plane bulb again.
Drawings
FIG. 1 shows a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the internal structure of FIG. 1;
FIG. 3 is a schematic view of the structure of FIG. 1 from another perspective;
FIG. 4 is a schematic view of a portion of the structure of FIG. 3;
FIG. 5 is a schematic diagram of the buffer mechanism of FIG. 1;
FIG. 6 is a left side cross-sectional view of the structure of FIG. 5;
FIG. 7 is a schematic view of a portion of the structure of FIG. 4;
fig. 8 is an enlarged schematic view of the structure at a in fig. 7.
Reference numerals:
1. fixing the base station; 11. a test control box; 12. a test frame; 13. a hydraulic lifting platform; 14. a threaded adjusting rod; 15. testing a planar ball head;
2. installing a side plate; 21. a first expansion device; 22. a cleaning plate;
3. a temporary placing table; 31. a second expansion device; 32. a contact plate;
4. an outer protective shell; 41. a long axis; 42. a receiving plate; 43. connecting a swing arm; 44. a short round bar; 45. an adapter slide;
46. a closing cylinder; 461. a piston disc; 462. a connecting rod; 463. a spring; 464. adjusting an air valve; 465. an extension tube;
47. temporary storage empty ring; 471. a first air pipe; 472. a second air pipe; 473. a hollow column; 474. a small piston; 475. a correction lever;
5. an upper rod; 51. a long column; 52. a square frame; 53. a lower edge column; 54. fixing a round shaft; 55. a fixed sleeve; 551. bending the sleeve; 552. a torsion spring; 553. striking the folded plate; 56. a thin shaft; 561. a right-angle sleeve; 57. pulling a cable; 58. wedge blocks;
6. and (5) collecting a bin.
Detailed Description
The technical scheme of the invention is further described below with reference to the attached drawings and specific embodiments.
Example 1
Referring to fig. 4, the performance test system for the precast concrete structural member provided by the invention comprises a fixed base 1, a test control box 11 and a test frame 12, wherein the test control box 11 and the test frame 12 are fixed on the fixed base 1, a hydraulic lifting table 13 controlled by the test control box 11 is arranged in the test frame 12, a threaded adjusting rod 14 is connected with the top of the test frame 12 in a threaded manner, and a test plane ball head 15 correspondingly matched with the hydraulic lifting table 13 is fixed at the lower end of the threaded adjusting rod 14; the fixed base 1, the test control box 11, the test frame 12, the hydraulic lifting table 13, the threaded adjusting rod 14 and the test plane ball 15 are arranged as mechanisms of the existing equipment, and are directly used in the technical scheme, and are not used as innovation parts of the technical scheme of the invention, and are not repeated herein.
This is the existing operating step, specifically: firstly, placing a cube on the table top of a hydraulic lifting table 13, cleaning the table top of the hydraulic lifting table 13, continuously and stably pressurizing through a test control box 11, immediately operating the test control box 11 to stop pressurizing through observing the test piece when the surface of the test piece is cracked or broken and falls, and in the subsequent pressure stabilizing process, partially crushing the test piece, and then obtaining test data according to a test value on control equipment; and then the table top of the hydraulic lifting table 13 is cleaned.
Referring to fig. 2, 3 and 5, a delay releasing mechanism for receiving waste is fixed at the rear side of the test frame 12, the delay releasing mechanism comprises an outer protective shell 4 fixed at the rear side of the test frame 12, a long shaft 41 is rotatably connected to the inner side of the outer protective shell 4, a receiving plate 42 connected with the rear end of the table top of the hydraulic lifting table 13 and used for temporarily storing waste is fixed on the long shaft 41, and the receiving plate 42 is flush with the rear end of the hydraulic lifting table 13, so that cleaned waste is conveniently received. Both ends of the long shaft 41 penetrate through the outer protective shell 4 and are fixedly provided with a gas bin assembly for realizing delayed dropping of waste materials by slowly sucking air;
specifically, in the concrete compression test, a test piece is required to be placed on the table top of the hydraulic lifting table 13, and is placed on the center position of the table top of the hydraulic lifting table 13, then the test is performed, and after the test is performed through the existing test steps, the required numerical value is obtained; then cleaning the table top of the hydraulic lifting table 13, pushing the waste to the carrying plate 42 when cleaning the table top, and then placing a new test piece on the table top of the hydraulic lifting table 13, wherein the placing position does not need to be carefully corrected; when the waste material is pressed down on the receiving plate 42 by gravity, the receiving plate 42 will rotate by the long shaft 41 and be restrained by the cartridge assembly for slow rotation.
Referring to fig. 5, the air bin assembly includes a connection swing arm 43 fixed at two ends of a long shaft 41, one side of the connection swing arm 43 is fixed with a short round rod 44, two short round rods 44 are sleeved with an adapting slide 45, the lower side of the adapting slide 45 is connected with a sealing cylinder 46 fixed on an outer protecting shell 4, the inner side of the sealing cylinder 46 is slidably provided with a piston disc 461, the upper side of the piston disc 461 is fixed with a connecting rod 462 fixed with the adapting slide 45, the top of the piston disc 461 and the inner top of the sealing cylinder 46 are provided with a spring 463, the lower side of the sealing cylinder 46 is connected with an adjusting air valve 464, the opening size of the adjusting air valve 464 can be freely adjusted, the quantity of the entering air can be controlled, and the extension time of falling waste is controlled. An extension pipe 465 is connected to the upper side of the closing cylinder 46. The adapting slide 45 comprises two elongated slot plates movably sleeved on the short round rod 44, and the two elongated slot plates are jointly fixed with a same connecting rod fixed with the connecting rod 462.
Specifically, in the process of rotating the long shaft 41, the connecting swing arm 43 connected with the long shaft 41 rotates, the short round rod 44 connected with the connecting swing arm 43 rotates with the long shaft 41 as the axis, the short round rod 44 slides with the adapting slide 45 due to the circumferential rotation action of the short round rod 44, so as to drive the adapting slide 45 to move upwards, the connecting rod 462 connected with the adapting slide 45 moves upwards, and air formed by the lower side of the connecting rod 462 and the sealing cylinder 46 needs to enter the air through the adjusting air valve 464, so that the moving speed of the connecting rod 462 is adjusted by controlling the amount of air inlet, the control of the rotating speed of the receiving plate 42 is realized, and the control of the time for discharging waste is realized; the air between the upper side of the piston disc 461 and the closing cylinder 46 is discharged through the extension pipe 465, and a new test piece can be placed in this interval while the receiving plate 42 is rotated and the waste on the receiving plate 42 has not fallen. After the completion of the falling, the receiving plate 42 automatically falls back by the elastic force of the spring 463 and the fitting slider 45, the connecting swing arm 43, and the like, and in this process, a certain time is required.
Referring to fig. 4 and fig. 7-8, a correction mechanism which is arranged at the inner side of the test frame 12 and corrects the test piece at the center position of the table top of the hydraulic lifting table 13 is connected to the screw adjusting rod 14, the correction mechanism comprises an upper rod 5 which is movably sleeved on the screw adjusting rod 14, long columns 51 which extend to the inner side of the test frame 12 through the top of the test frame 12 are fixed at two ends of the upper rod 5, square frames 52 are fixed at two long columns 51, four corners of the square frames 52 are connected with four fixed circular shafts 54 which are connected end to end through lower edge columns 53, and a striking component is arranged on each fixed circular shaft 54; the beating assembly comprises a fixed sleeve 55 fixed on a fixed circular shaft 54, a bending sleeve member 551 movably sleeved on the fixed circular shaft 54 is arranged on one side of the fixed sleeve 55, a torsion spring 552 is fixed between the bending sleeve member 551 and the fixed sleeve 55, a beating folded plate 553 for beating a test piece is fixed on the bending sleeve member 551, a thin shaft 56 is fixed on the bending sleeve member 551, right-angle sleeves 561 are sleeved between the end parts of two adjacent thin shafts 56, traction ropes 57 are connected on the two right-angle sleeves 561 with symmetrical axes, and the free ends of the two traction ropes 57 penetrate through the top of the test frame 12 and are connected with wedge blocks 58 positioned on the lower side of the long shaft 41. The wedge-shaped block 58 is provided with a noise reduction cotton plate for reducing noise, so that the noise can be reduced and the protection effect can be achieved. The test frame 12 is provided with a roller assembly pulled by a matched traction cable 57, and the roller assembly is in the prior art and mainly plays a role in reducing friction force.
Specifically, under the action of the bearing and delaying of the bearing plate 42, the finally fallen waste material falls and makes free falling motion to strike the wedge block 58, and the free falling kinetic energy of the waste material impacts the wedge block 58, so that a pulling action is caused, the wedge block 58 pulls the right angle sleeve 561 through the pulling rope 57, and the right angle sleeve 561 and the thin shaft 56 are arranged in a plugging movable manner, so that the formed size can be freely changed, the property of the right angle sleeve 561 can be utilized to perform synchronous action, and the right angle sleeve 561 is pulled to enable the bending sleeve 551 to synchronously rotate, and the bending sleeve 551 drives the striking flap 553 to perform striking correction on the test piece. When the waste hits the wedge block 58, the waste automatically falls down, and the wedge block 58 automatically resets due to the torsion of the torsion spring 552, and at the same time of resetting, the reset rotation angle of the bending sleeve 551 is increased due to the inertia of the bending sleeve 551, the hitting flap 553 and other parts connected by the torsion spring 552.
Referring to fig. 5-7, each striking component is connected with an automatic telescopic component for assisting in correcting the horizontal position of the test plane ball head 15 by slowly pressurizing through the air bin component through a bending plate; the automatic telescopic assembly comprises a temporary storage hollow ring 47 fixed on a square frame 52, the temporary storage hollow ring 47 is connected with an extension pipe 465 through a first air pipe 471, the lower side of the temporary storage hollow ring 47 is connected with a hollow column 473 connected with a bending plate through a second air pipe 472, a small piston 474 is arranged in the hollow column 473 in a sliding manner, a correction rod 475 penetrating through the inner bottom of the hollow column 473 is connected to the small piston 474, and an exhaust hole is formed in the bottom of the hollow column 473. In this embodiment, the first air tube 471 and the second air tube 472 are all rubber hoses.
Specifically, in the process that the waste falls on the receiving plate 42 and slowly rotates, since the receiving plate 42 drives the piston disc 461 to move upwards through the linkage of a plurality of components, air between the upper side of the piston disc 461 and the sealing cylinder 46 enters the temporary storage hollow ring 47 through the extension pipe 465 and the first air pipe 471, is synchronously conveyed into the hollow column 473 through the second air pipe 472, so that the small piston 474 automatically stretches under the pressure action, the air pressure in the extension pipe 465, the first air pipe 471, the temporary storage hollow ring 47, the hollow column 473 and other components is increased, and the correction rod 475 strikes the test plane ball 15 to perform primary auxiliary correction; when the waste material falls on the wedge block 58 and hits, the air pressure in the parts such as the extension pipe 465, the first air pipe 471, the temporary storage hollow ring 47, the hollow column 473 and the like is synchronously reduced slowly through the slow reset of the piston disc 461, but the time after the waste material falls and hits the wedge block 58 is far less than the reset time of the piston disc 461, and the correction rod 475 has an enhanced hit correction effect through the residual air pressure and the rotation inertia of the parts such as the bending sleeve 551, the hit flap 553 and the like which are connected by the torsion spring 552 in a matching way, so that the aim of auxiliary correction of a test piece can be achieved.
Example two
As shown in fig. 1-3, the performance test system for a precast concrete structural member according to the present invention, based on the first embodiment, further includes: the front side of the test frame 12 is provided with a cleaning component for cleaning the waste on the table top of the hydraulic lifting table 13, the cleaning component comprises a mounting side plate 2 fixed on one side of the test frame 12, a first telescopic device 21 is fixed on the mounting side plate 2, and a cleaning plate 22 contacted with the table top of the hydraulic lifting table 13 is fixed at the telescopic end of the first telescopic device 21. The front side of the test frame 12 is provided with a first protection plate which is matched with the installation side plate 2 for installation, and the first protection plate adopts a transparent design, so that the test condition of the internal test piece can be observed conveniently.
The left side of test frame 12 is provided with the feeding subassembly that flushes with hydraulic lifting platform 13 mesa and carries out propelling movement test piece, and feeding mechanism is fixed on test frame 12 including the temporary put platform 3, temporary put bench 3 on be fixed with expansion bend second 31, expansion bend second 31's flexible end is fixed with the contact plate 32 that lower tip and hydraulic lifting platform 13 mesa flush. The left side of the test frame 12 is provided with a second protection plate which is installed in a matched installation side plate 2, the second protection plate adopts a transparent design, and one side of the second protection plate is provided with an opening and closing door for placing required test pieces.
The rear side of the fixed base 1 is provided with a collection bin 6 for collecting waste.
Specifically, the underside of the temporary placement table 3 is provided with a control box, and a programming control device such as: the PLC controls the operation of the first expansion joint 21 and the second expansion joint 31; when the test starts, the first telescopic device 21 is started by the control equipment to push the cleaning plate 22, so that the cleaning plate 22 cleans the surface of the hydraulic lifting platform 13; when a test piece is placed for the first time, placing the required test piece on the temporary placing table 3, then starting the second telescopic device 31 through the controller, pushing the test piece to move onto the hydraulic lifting table 13 through the contact plate 32 fixed by the second telescopic device 31, enabling the position to be close to the central position of the hydraulic lifting table 13, and performing first manual correction; after correction is finished, testing is carried out through the test control box 11, the test frame 12, the hydraulic lifting table 13, the threaded adjusting rod 14 and the test plane ball head 15, after the test is finished, the first telescopic device 21 is started through the control equipment again, the waste is pushed to be separated from the hydraulic lifting table 13 completely through the cleaning plate 22 fixed by the first telescopic device 21, and then the waste is delayed and thrown through the delay feeding mechanism; in the time delay process, the control equipment can control the second telescopic device 31 to start so as to push the test piece to be fed, and the test piece is not required to be corrected again, and the correction work of the test plane ball head 15 and the test piece can be performed through the cooperation of structures such as the striking component, the automatic telescopic component and the like; when the test is continuously carried out, the correction work is continuously carried out; according to the operation mode, the continuous test can greatly reduce the test time, and the operation steps can be greatly simplified in a single test flow. The added collection bin 6 is capable of collecting the tested waste.
The above-described embodiments are merely a few preferred embodiments of the present invention, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present invention and the related teachings of the above-described embodiments.
Claims (8)
1. The utility model provides a precast concrete structure piece capability test system, includes fixed base (1) and fixes test control box (11) and test frame (12) on fixed base (1), be provided with in test frame (12) hydraulic lift platform (13) through test control box (11) control, the top threaded connection of test frame (12) has screw thread to adjust pole (14), the lower extreme of screw thread to adjust pole (14) is fixed with and corresponds complex test plane bulb (15) with hydraulic lift platform (13), its characterized in that:
the automatic waste material collecting and feeding device comprises a testing frame (12), and is characterized by further comprising a time delay feeding mechanism fixedly arranged at the rear side of the testing frame (12) and used for receiving waste materials, wherein the time delay feeding mechanism comprises an outer protecting shell (4) fixed at the rear side of the testing frame (12), a long shaft (41) is rotationally connected to the inner side of the outer protecting shell (4), a receiving plate (42) which is connected with the rear end of a table top of a hydraulic lifting table (13) and used for temporarily storing the waste materials is fixed on the long shaft (41), and two ends of the long shaft (41) penetrate through the outer protecting shell (4) and are fixed with a gas bin assembly which can realize time delay falling of the waste materials through slowly sucking air;
the device is characterized in that a correction mechanism which is arranged on the inner side of the test frame (12) and corrects a test piece on the center position of a table top of the hydraulic lifting table (13) is connected to the screw adjusting rod (14), the correction mechanism comprises an upper rod (5) which is movably sleeved on the screw adjusting rod (14), long columns (51) which penetrate through the top of the test frame (12) and extend to the inner side of the test frame (12) are fixed at two ends of the upper rod (5), square frames (52) are fixed at two long columns (51), four fixed round shafts (54) which are connected end to end are connected at four corners of the square frames (52) through lower edge columns (53), and striking assemblies are arranged on each fixed round shaft (54);
and each striking component is connected with an automatic telescopic component for assisting in correcting the horizontal position of the test plane ball head (15) through slow pressurization of the gas bin component through a bending plate.
2. A precast concrete structure performance testing system according to claim 1, wherein: the front side of the test frame (12) is provided with a cleaning component for cleaning waste on the table top of the hydraulic lifting table (13), the cleaning component comprises an installation side plate (2) fixed on one side of the test frame (12), a first telescopic device (21) is fixed on the installation side plate (2), and a cleaning plate (22) contacted with the table top of the hydraulic lifting table (13) is fixed at the telescopic end of the first telescopic device (21).
3. A precast concrete structure performance testing system according to claim 1, wherein: the left side of test frame (12) is provided with the pay-off subassembly that flushes with hydraulic lifting platform (13) mesa and carries out propelling movement test piece, feeding mechanism is including fixing temporary placing platform (3) on test frame (12), temporary placing bench (3) are last to be fixed with expansion bend second (31), the flexible end of expansion bend second (31) is fixed with lower tip and hydraulic lifting platform (13) mesa flush contact plate (32).
4. A precast concrete structure performance testing system according to claim 1, wherein: the gas cartridge assembly comprises connecting swing arms (43) fixed at two ends of a long shaft (41), one side of each connecting swing arm (43) is fixedly provided with a short round rod (44), two short round rods (44) are sleeved with an adaptation slider (45) together, the lower side of each adaptation slider (45) is connected with a closed cylinder (46) fixed on an outer protective shell (4), the inner side of each closed cylinder (46) is slidably provided with a piston disc (461), the upper side of each piston disc (461) is fixedly provided with a connecting rod (462) fixed with each adaptation slider (45), the inner tops of the piston discs (461) and the closed cylinders (46) are provided with springs (463), the lower side of each closed cylinder (46) is connected with an adjusting air valve (464), and the upper side of each closed cylinder (46) is connected with an extension pipe (465).
5. The precast concrete structure performance testing system according to claim 4, wherein: the utility model discloses a test piece beating subassembly, including beating subassembly, beat subassembly, including fixing fixed cover (55) on fixed round axle (54), one side of fixed cover (55) is provided with movable sleeve and establishes bending external member (551) on fixed round axle (54), be fixed with torsional spring (552) between bending external member (551) and the fixed cover (55), be fixed with on bending external member (551) with test piece beating folded plate (553), be fixed with thin axle (56) on bending external member (551), overlap jointly between the tip of two adjacent thin axles (56) and be equipped with right angle sleeve (561), all be connected with on two right angle sleeve (561) of axisymmetry and lead cable (57), the free end of two lead cable (57) all runs through test frame (12) top and is connected with wedge (58) that are located major axis (41) downside.
6. The precast concrete structure performance testing system according to claim 5, wherein: the automatic telescopic assembly comprises a temporary storage hollow ring (47) fixed on a square frame (52), the temporary storage hollow ring (47) is connected with an extension pipe (465) through an air pipe I (471), a hollow column (473) connected with a bending plate is connected to the lower side of the temporary storage hollow ring (47) through an air pipe II (472), a small piston (474) is arranged in the hollow column (473) in a sliding mode, a correction rod (475) penetrating through the inner bottom of the hollow column (473) is connected to the small piston (474), and an exhaust hole is formed in the bottom of the hollow column (473).
7. The precast concrete structure performance testing system according to claim 4, wherein: the adapting slide piece (45) comprises two long groove plates movably sleeved on the short round rod (44), and the two long groove plates are jointly fixed with a same-connection rod fixed with the connecting rod (462).
8. A precast concrete structure performance testing system according to claim 1, wherein: the rear side of the fixed base (1) is provided with a collection bin (6) for collecting waste materials.
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| CN202310393223.8A CN116558955A (en) | 2023-04-13 | 2023-04-13 | Performance test system for precast concrete structural member |
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| CN202310393223.8A CN116558955A (en) | 2023-04-13 | 2023-04-13 | Performance test system for precast concrete structural member |
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| GB2055211A (en) * | 1979-07-19 | 1981-02-25 | Secr Defence | Testing load carrying members |
| US20100005898A1 (en) * | 2008-07-09 | 2010-01-14 | Ali Regimand | System and method for conditioning and detection of moisture damage in asphalt mixes |
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Effective date of registration: 20240117 Address after: No. 32 Changjiang Road, Yancheng Economic and Technological Development Zone, Yancheng City, Jiangsu Province, 224000 Applicant after: Yancheng Construction Engineering Quality Testing Center Co.,Ltd. Address before: No. 32 Changjiang Road, Yancheng Economic and Technological Development Zone, Yancheng City, Jiangsu Province, 224000 Applicant before: Wang Jiaxin |