CN117890425B - Concrete placement heat dissipation test device - Google Patents
Concrete placement heat dissipation test device Download PDFInfo
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- CN117890425B CN117890425B CN202410288176.5A CN202410288176A CN117890425B CN 117890425 B CN117890425 B CN 117890425B CN 202410288176 A CN202410288176 A CN 202410288176A CN 117890425 B CN117890425 B CN 117890425B
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- 238000012360 testing method Methods 0.000 title claims abstract description 69
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 21
- 238000003825 pressing Methods 0.000 claims abstract description 29
- 238000001816 cooling Methods 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000002441 reversible effect Effects 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000498 cooling water Substances 0.000 description 10
- 230000011218 segmentation Effects 0.000 description 9
- 238000010008 shearing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 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
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/18—Investigating or analyzing materials by the use of thermal means by investigating thermal conductivity
-
- 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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- 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
-
- 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
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- 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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- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to the technical field of concrete heat dissipation strength tests, and discloses a concrete pouring heat dissipation test device, wherein a through groove is formed in the middle of a workbench, a pouring groove is formed above the through groove, a cooling pipe is arranged in the pouring groove, a test vehicle is rolled at the upper end of the workbench, a transverse shaft is rotatably connected between two rollers of the test vehicle, which are close to the opening direction of the through groove, and a supporting wheel supported at the bottom of the pouring groove is fixed in the middle of the transverse shaft; the upper end of the test vehicle is fixed with a transverse plate, and a pressing device is arranged on the transverse plate; the pouring groove comprises at least three sectional grooves, and one sectional groove close to the other end of the through groove is fixedly connected with the workbench; any two adjacent sectional grooves are hinged. According to the invention, the sectional grooves can rotate downwards, the pressing device is matched, so that the concrete at the outermost end is subjected to a breaking strength test, then the test vehicle moves, and the breaking strength test is sequentially carried out on the concrete in each sectional groove, so that the influence of each factor on the heat dissipation effect of the concrete is tested.
Description
Technical Field
The invention belongs to the technical field of concrete heat dissipation strength tests, and particularly relates to a concrete pouring heat dissipation test device.
Background
Because the volume of the large-volume concrete structure is larger, the heat dissipation surface is limited, the internal cement hydration heat is not easy to dissipate in time, and the temperature shrinkage crack is easy to generate under the restriction of external environment or internal force of concrete.
Because in the bulky concrete, the concrete span is great, when carrying out the cooling water circulation, because produce heat exchange with the concrete when cooling water conveying direction's front end is to the concrete heat dissipation, lead to the cooling water in the transportation process, the temperature rises gradually to the concrete radiating effect to cooling water conveying direction rear side has been reduced.
The existing concrete pouring heat dissipation device is generally tested by observing concrete surface cracks, concrete local sample damage tests and the like, and aiming at long-distance concrete pouring, corresponding strength tests cannot be conducted according to concrete at different positions in the conveying direction of cooling water, and test data are insufficient in contrast.
Disclosure of Invention
The invention aims to provide a concrete pouring heat dissipation test device which is used for solving the problems in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The concrete pouring heat dissipation test device comprises a workbench, wherein a through groove with one open end is formed in the middle of the workbench, a pouring groove with a groove type is formed above the through groove, a cooling pipe is arranged in the pouring groove, a test vehicle sleeved outside the through groove is arranged at the upper end of the workbench in a rolling manner, the test vehicle comprises four rollers, a transverse shaft is rotatably connected between two rollers of the test vehicle, which are close to the opening direction of the through groove, a supporting wheel corresponding to the through groove is fixedly connected in the middle of the transverse shaft, and the supporting wheel is supported at the bottom of the pouring groove; the upper end of the test vehicle is fixedly connected with a transverse plate extending towards the opening direction of the through groove, and a pressing device for pressing down the concrete in the through groove is arranged on the transverse plate;
The pouring groove comprises at least three sectional grooves arranged along the length direction of the pouring groove, and one sectional groove close to the other end of the through groove is fixedly connected with the workbench; any two adjacent sectional grooves are all hinged, so that one sectional groove close to the opening direction of the through groove in the two sectional grooves can rotate downwards relative to the other sectional groove.
As a preferable technical scheme in the invention, a longitudinal beam is arranged between two rollers at the side of the test vehicle, two upright posts are fixedly connected to the upper end of each longitudinal beam, the upper ends of the four upright posts are connected with a flat plate above the pouring groove, and the transverse plate is fixedly connected to the flat plate.
As a preferable technical scheme in the invention, the upper ends of the work tables at the two sides of the through groove are respectively provided with a track groove, and the rollers at the two sides of the test vehicle roll in the two track grooves respectively.
As a preferable technical scheme in the invention, the pressing device comprises a push rod, the middle part of the push rod penetrates through the transverse plate along the vertical direction, and the lower end of the push rod is rotationally connected with a pressing shaft; the upper end of the transverse plate is fixedly connected with a pressing oil cylinder which drives the push rod to move up and down, and the telescopic end of the pressing oil cylinder is connected with the upper end of the push rod through a pressure sensor.
As a preferable technical scheme in the invention, the upper end of the transverse plate is also fixedly connected with a first oil cylinder, the telescopic end of the first oil cylinder is fixedly connected with a limiting rod, the middle part of the limiting rod penetrates through the transverse plate along the vertical direction, and the lower end of the limiting rod is fixedly connected with a guard plate for pressing on the surface of concrete.
As a preferable technical scheme in the invention, one side of the push rod far away from the test vehicle is provided with a support rod which extends obliquely along the length direction of the pouring groove, the upper end of the support rod is hinged with the push rod below the transverse plate through a hinge shaft, and the hinge shaft is provided with a first torsion spring of which the two ends are respectively connected with the push rod and the support rod; the lower end of the supporting rod is rotationally connected with a push roller, the height of the lower end of the push roller in the horizontal direction is lower than that of the lower end of the pressing shaft in the horizontal direction in a natural state, and two ends of the push roller extend to the side walls of two sides of the sectional groove respectively; the side wall upper ends of segmentation groove both sides all are provided with a plurality of triangular blocks along segmentation groove length direction interval distribution, and the one side of every triangular block towards logical groove open direction is vertical spacing face, and the opposite side of every triangular block is the inclined plane.
As a preferable technical scheme in the invention, two sides of the sectional groove are respectively provided with a limiting plate extending along the length direction of the sectional groove, and one end of the limiting plate, which is close to the opening direction of the through groove, is connected with the outer wall of the sectional groove through a connecting part extending downwards; the height of the limiting plate in the horizontal direction is higher than the upper end of the triangular block, so that the limiting plate and the sectional groove are matched to form a limiting groove with one open end, and a plurality of arc-shaped grooves which are distributed at intervals along the length direction of the sectional groove are formed at the lower end of the limiting plate corresponding to the inner top surface of the limiting groove; and two ends of the push roller are coaxially connected with an extension shaft which can enter between the limiting plate and the segmented groove along with the movement of the supporting rod.
As a preferable technical scheme in the invention, the other end of the limiting plate is slidably connected with an anti-falling rod penetrating through the limiting plate along the vertical direction, an anti-falling spring is fixedly connected between the upper end of the anti-falling rod and the upper end of the limiting plate, and the lower end of the anti-falling rod is provided with a guide inclined plane which is convenient for guiding the extension shaft from outside the limiting groove to inside the limiting groove.
As a preferable technical scheme in the invention, in any two adjacent sectional grooves, one sectional groove close to one end of a through groove is a first sectional groove, the other sectional groove is a second sectional groove, the lower end of the second sectional groove is fixedly connected with a support plate extending towards the direction of the first sectional groove, the lower end of the first sectional groove is fixedly connected with a vertical plate positioned at one side of the support plate, the vertical plate is slidably connected with a round shaft with the middle part penetrating through the vertical plate, a first spring is fixedly connected between one end of the round shaft far away from the support plate and the vertical plate, a limit hole is formed in the support plate, the other end of the round shaft is inserted into the limit hole, a pushing shaft which is abutted against the other end of the round shaft and is in limit connection in the circumferential direction is movably connected in the limit hole, one end of the pushing shaft far away from the round shaft is fixedly connected with a round rod, the other side of the support plate is fixedly connected with a stop block, and when the round rod rotates along with the pushing shaft, the pushing shaft can move to the arc surface of the arc protrusion and move towards the round shaft direction through the reverse thrust of the arc protrusion.
As a preferable technical scheme in the invention, a limit sleeve is sleeved outside the pushing shaft, the limit sleeve is rotationally connected in the limit hole, and the limit sleeve is connected with the support plate through a reset torsion spring; the limiting sleeve is internally provided with a key slot extending along the length direction of the pushing shaft, the outer side of the pushing shaft is fixedly provided with a shaft key which is in sliding connection with the key slot, the outer side of the round shaft is fixedly connected with a limiting block, and one end of the limiting block is in sliding connection with the key slot of the limiting sleeve.
The beneficial effects are that: when the concrete pouring device works, concrete is poured in a pouring groove, cooling water is pumped into a cooling pipe through a pump body at one side to cool the internal heat of the concrete, after the concrete is hardened, a test vehicle moves in the direction of water delivery of the cooling pipe, a supporting wheel is separated from the bottom of an outermost segmented groove (namely, one segmented groove closest to one open end of a through groove in all segmented grooves) so that the bottom of the outermost segmented groove is suspended, the segmented groove can independently rotate downwards, and a pressing device is matched, so that the concrete in the outermost segmented groove is subjected to a breaking strength test (the breaking strength test is the prior art, and the principle is that a shearing force line is automatically obtained through loading pressure and an instrument, so that the concrete pouring device is the prior art and is not further repeated.
After the separation breaking strength test of the sectional groove at the outermost end, the sectional groove at the outermost end can be removed, and further evacuation of the supporting wheel can be performed, so that the breaking strength test can be performed on concrete in the sectional groove at the outermost end in the latest state, the breaking strength test can be performed on concrete at different positions according to the conveying distance of the cooling pipe, and the influence of factors such as cooling water, the cooling pipe, long-distance conveying and the like on the radiating effect of the concrete is tested.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the structure of the test vehicle, the hold-down device and the strut according to the present invention;
FIG. 3 is a schematic view of a portion of the structure of the present invention;
FIG. 4 is an enlarged schematic view of portion E of FIG. 3;
FIG. 5 is a cross-sectional view of the structure of FIG. 4;
Fig. 6 is an enlarged schematic view of the portion F in fig. 3.
In the figure: 1-a workbench; 11-through grooves; 2-pouring a groove; 21-a segmented groove; 3-cooling pipes; 4-a test vehicle; 41-a roller; 42-horizontal axis; 43-supporting wheels; 44-stringers; 45-upright posts; 46-plates; 47-a cross plate; 411-track slots; 5-a pressing device; 51-push rod; 52-pressing the shaft; 53-pressing down the oil cylinder; 54-pressure sensor; 55-a first oil cylinder; 56-a limit rod; 57-guard plate; 6-supporting rod; 61-pushing rollers; 62-triangular blocks; 63-limiting plates; 64-limit grooves; 65-arc grooves; 66-extending the shaft; 631-anti-drop bar; 632-anti-drop spring; 633-guiding ramp; 7-supporting plates; 71-risers; 72-a circular shaft; 73-a first spring; 74-limiting holes; 75-pushing the shaft; 76-round bar; 77-stop; 78-arc-shaped protrusions; 79-limit sleeve; 721-stopper.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly described below with reference to the accompanying drawings and the description of the embodiments or the prior art, and it is obvious that the following description of the structure of the drawings is only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art. It should be noted that the description of these examples is for aiding in understanding the present invention, but is not intended to limit the present invention.
Examples:
As shown in fig. 1-6, this embodiment provides a concrete pouring heat dissipation test device, including a workbench 1, a through groove 11 with one open end is provided in the middle of the workbench 1, a pouring groove 2 with a groove shape is provided above the through groove 11, a cooling pipe 3 is provided in the pouring groove 2, the number of the cooling pipes 3 is not limited specifically, and can be used for conveying cooling water, and testing the change of long-distance concrete pouring performance, a test car 4 sleeved outside the through groove 11 is rolled at the upper end of the workbench 1, the test car 4 includes four rollers 41, a flat push cylinder or a workshop is provided at the other end of the workbench 1, the traction of the test car 4 is realized, the position of the test car 4 on the workbench 1 is controlled to change, a cross shaft 42 is rotationally connected between two rollers 41 of the test car 4 near the direction of the through groove 11, a supporting wheel 43 corresponding to the through groove 11 is fixedly connected in the middle of the cross shaft 42, the supporting wheel 43 is supported at the bottom of the groove 2, and thus the stability of the segment groove 21 supported by the supporting wheel 43 can be ensured; the upper end of the test car 4 is fixedly connected with a transverse plate 47 extending towards the opening direction of the through groove 11, and the transverse plate 47 is provided with a pressing device 5 for pressing down the concrete in the through groove 11 so as to press down the concrete in the pouring groove 2; the pouring groove 2 comprises at least three segmented grooves 21 arranged along the length direction of the pouring groove, and one segmented groove 21 close to the other end of the through groove 11 is fixedly connected with the workbench 1, so that stability is ensured; any two adjacent segment grooves 21 are hinged so that one segment groove 21 of the two segment grooves 21, which is close to the opening direction of the through groove 11, can rotate downwards relative to the other segment groove 21.
When the concrete pouring device works, concrete is poured in the pouring groove 2 firstly, cooling water is pumped into the cooling pipe 3 through the pump body at one side to cool the internal heat of the concrete, after the concrete is hardened, the cooling pipe is conveyed in the water conveying direction by the test vehicle, the supporting wheel 43 is separated from the bottom of the outermost segmented groove 21 (namely, one segmented groove 21 closest to the open end of the through groove 11 in all segmented grooves 21), so that the bottom of the outermost segmented groove 21 is suspended, the segmented groove 21 can independently rotate downwards and is matched with the pressing device 5, so that the concrete in the outermost segmented groove 21 is subjected to a breaking strength test (the breaking strength test is the prior art, the principle is that a shearing force line is automatically obtained by loading pressure, the shearing force line is the prior art, and no further description is made here).
After the separation breaking strength test of the outermost segment groove 21, the outermost segment groove 21 is removed, so that the concrete in the outermost segment groove 21 in the latest state can be subjected to the breaking strength test by further removing the support wheels 43, and the concrete in different positions can be subjected to the breaking strength test according to the conveying distance of the cooling pipe 3, so that the influence of factors such as cooling water, the cooling pipe, long-distance conveying and the like on the radiating effect of the concrete is tested.
As a preferred embodiment in this embodiment, it should be further explained that a longitudinal beam 44 is disposed between the two rollers 41 on the side of the test vehicle 4, two vertical columns 45 are fixedly connected to the upper end of each longitudinal beam 44, and the upper ends of the four vertical columns 45 are connected to a flat plate 46 above the pouring slot 2, so as to form a stable integral structure, and a transverse plate 47 is fixedly connected to the flat plate 46 to ensure the stability of the transverse plate 47.
As a preferred embodiment in this embodiment, it should be further explained that the upper ends of the working tables 1 at two sides of the through groove 11 are provided with rail grooves 411, the rollers 41 at two sides of the test car 4 roll in the two rail grooves 411 respectively, and the rollers 41 at two sides of the test car 4 are limited by the rail grooves 411, so as to ensure the stability of the test car 4 during operation.
As a preferred embodiment of the present embodiment, it should be further explained that the pressing device 5 includes a push rod 51, the middle portion of the push rod 51 penetrates through the transverse plate 47 along the vertical direction, and the lower end of the push rod 51 is rotatably connected with a pressing shaft 52; the upper end of the transverse plate 47 is fixedly connected with a lower pressure oil cylinder 53 which drives the push rod 51 to move up and down, the telescopic end of the lower pressure oil cylinder 53 is connected with the upper end of the push rod 51 through a pressure sensor 54, when the hydraulic cylinder is operated, the lower pressure oil cylinder 53 is started to control the push rod 51 to move down, then the hydraulic shaft 52 is driven to press on the surface of concrete, after the concrete breaks, the hydraulic shaft 52 rolls on an inclined breaking piece, so that after the breaking pressure is released instantaneously, the lateral bending pressure of the push rod 51 can be reduced, and the service life of the push rod 51 is prolonged.
As a preferred embodiment in this embodiment, it should be further explained that the upper end of the transverse plate 47 is fixedly connected with a first oil cylinder 55, a telescopic end of the first oil cylinder 55 is fixedly connected with a stop lever 56, the middle part of the stop lever 56 penetrates through the transverse plate 47 along the vertical direction, the lower end of the stop lever 56 is fixedly connected with a guard plate 57 for pressing on the concrete surface, the first oil cylinder 55 pushes the guard plate 57 to press on the concrete surface through the stop lever 56, so that the breaking position of the concrete is located between the two segment grooves 21, and the problem that the concrete at a position which has not been tested is directly demoulded and tilted due to directly pressing the far end of the concrete is avoided, thereby ensuring that the requirement of a design test is met.
As a preferred embodiment in this embodiment, it should be further explained that a supporting rod 6 extending obliquely along the length direction of the pouring slot 2 is disposed on the side of the pushing rod 51 away from the test vehicle 4, the upper end of the supporting rod 6 is hinged with the pushing rod 51 below the transverse plate 47 through a hinge shaft, and a first torsion spring with two ends respectively connected with the pushing rod 51 and the supporting rod 6 is disposed on the hinge shaft, and the first torsion spring can drive the supporting rod 6 to keep a downward inclined trend all the time; the lower end of the supporting rod 6 is rotatably connected with a push roller 61, in a natural state, the height of the lower end of the push roller 61 in the horizontal direction is lower than that of the lower end of the pressing shaft 52, and two ends of the push roller 61 respectively extend to the side walls at two sides of the segmented groove 21, so that the push roller 61 can be contacted with the side walls at two sides of the segmented groove 21 in the process of downward movement of the push rod 51; the side wall upper ends of segmentation groove 21 both sides all are provided with a plurality of triangular blocks 62 along segmentation groove 21 length direction interval distribution, the one side of every triangular block 62 orientation through groove 11 open direction is vertical spacing face, the opposite side of every triangular block 62 is the inclined plane, along with the further decline of pressure axle 52, branch 6 upwards rotates and holds the power to first torsional spring relative to pressure axle 52, along with the rotation of branch 6, the push roll 61 of branch 6 end is at the position roll of segmentation groove 21 lateral direction triangular block 62, fall after the slope of triangular block 62 is raised, thereby intermittent type downward vibration beats segmentation groove 21, be convenient for make the concrete in the segmentation groove 21 separate with it, after the slope of follow-up segmentation groove 21, be convenient for the slant is derived cracked concrete block, be convenient for transport away in time through the bottom setting, avoid influencing the fracture test of follow-up segmentation.
As a preferred embodiment in this embodiment, it should be further explained that the two sides of the segment groove 21 are provided with a limiting plate 63 extending along the length direction of the segment groove 21, and one end of the limiting plate 63 near the opening direction of the through groove 11 is connected with the outer wall of the segment groove 21 through a connecting portion extending downward, so as to ensure the stability of the limiting plate 63; the height of the limiting plate 63 in the horizontal direction is higher than the upper end of the triangular block 62, so that a limiting groove 64 with one open end is formed by matching the limiting plate 63 with the sectional groove 21, and a plurality of arc-shaped grooves 65 which are distributed at intervals along the length direction of the sectional groove 21 are arranged at the lower end of the limiting plate 63 corresponding to the inner top surface of the limiting groove 64; both ends of the push roller 61 are coaxially connected with an extension shaft 66 which can enter between the limiting plate 63 and the segment groove 21 along with the movement of the supporting rod 6, so that the push roller 61 can jump up and down in a limited space, and the segment groove 21 can be beaten by more efficient vibration.
As a preferred embodiment in this embodiment, it should be further described that the other end of the limiting plate 63 is slidably connected with a release preventing rod 631 penetrating through the limiting plate 63 along the vertical direction, a release preventing spring 632 is fixedly connected between the upper end of the release preventing rod 631 and the upper end of the limiting plate 63, a guiding inclined plane 633 is disposed at the lower end of the release preventing rod 631, which is convenient for guiding the extension shaft 66 from outside the limiting groove 64 into the limiting groove 64, the extension shaft 66 of the push roller 61 stretches into the limiting groove 64 due to the lateral movement, the extension shaft 66 presses the guiding inclined plane 633 to enable the release preventing rod 631 to rise, and when the extension shaft 66 passes over the release preventing rod 631, the release preventing rod 631 descends under the action of the release preventing spring 632, so as to prevent the concrete from falling down quickly with the segmented groove 21 after being broken, thereby affecting the safety.
After the broken concrete falls, the anti-falling rod 631 is pulled upwards, the supporting rod 6 swings in a rotary mode and the segmented groove 21 rotates, after a proper angle is reached, the two can be separated, because the segmented groove 21 rotates and descends firstly, the extension shaft 66 is arranged on the upper side wall of the limiting groove 64, when the segmented groove 21 rotates and separates at the supporting rod 6, the segmented groove 21 can vibrate due to the action of the arc-shaped groove 65, and accordingly the residual concrete residues in the segmented groove 21 can be discharged conveniently.
As a preferred embodiment in this example, it should be further explained that, in any two adjacent segment slots 21, one segment slot 21 near one end of the through slot 11 is a first segment slot, the other segment slot 21 is a second segment slot, the lower end of the second segment slot is fixedly connected with a support plate 7 extending toward the first segment slot, the lower end of the first segment slot is fixedly connected with a vertical plate 71 located at one side of the support plate 7, the vertical plate 71 is slidingly connected with a round shaft 72 with the middle part penetrating through the vertical plate 71, a first spring 73 is fixedly connected between one end of the round shaft 72 far away from the support plate 7 and the vertical plate 71, the round shaft 72 can be automatically reset through the first spring 73, so as to ensure the stability thereof, a limit hole 74 is formed on the support plate 7, the other end of the round shaft 72 is inserted into the limit hole 74, a pushing shaft 75 which is abutted against the other end of the round shaft 72 and is in limit connection in the circumferential direction is movably connected in the limit hole 74, so that the two can rotate synchronously, but can be separated from each other when sliding along the central axis direction, one end of the pushing shaft 75 far away from the round shaft 72 is fixedly connected with a round rod 76, the other side of the support plate 7 is fixedly connected with a stop block 77, the stop block 77 is provided with an arc-shaped bulge 78, when the round rod 76 rotates along with the pushing shaft 75, the pushing shaft 75 can move onto the arc surface of the arc-shaped bulge 78 and move towards the round shaft 72 through the reverse thrust of the arc-shaped bulge 78, in practice, when the segmented groove 21 rotates downwards, the round shaft 72 rotates along with the vertical plate 71, then drives the pushing shaft 75 to rotate along with the round rod 76, after the round rod 76 contacts with the arc-shaped bulge 78, the round rod 72 moves towards the round shaft 72 under the reverse action of the arc-shaped bulge 78, and then the round shaft 72 is pushed out from the limit hole 74 of the support plate 7, this does not affect the downward rotation of the riser 71 and the attached segment slots 21.
As a preferred embodiment in this embodiment, it should be further explained that the pushing shaft 75 is sleeved with a limiting sleeve 79, the limiting sleeve 79 is rotatably connected in the limiting hole 74, and the limiting sleeve 79 is connected with the support plate 7 through a reset torsion spring; the key slot extending along the length direction of the pushing shaft 75 is formed in the limiting sleeve 79, the shaft key which is fixedly connected in the key slot in a sliding manner is fixedly arranged on the outer side of the pushing shaft 75, the limiting block 721 is fixedly connected on the outer side of the circular shaft 72, one end of the limiting block 721 is slidably connected in the key slot of the limiting sleeve 79, when the sectional groove 21 rotates downwards in operation, the downward rotating sectional groove 21 drives the circular shaft 72 to rotate, the circular shaft 72 drives the pushing shaft 75 to rotate through the limiting block 721, the circular rod 76 at the end of the pushing shaft 75 rotates and presses the arc-shaped protrusion 78, the pushing shaft 75 pushes the circular shaft 72, the circular shaft 72 is separated from the limiting sleeve 79, the sectional groove 21 is separated when the sectional groove 21 is about to contact the ground through the falling rotation of the sectional groove 21, one end of the sectional groove 21 firstly contacts the ground, the sectional groove 21 which is convenient to separate is smoothly removed, and the subsequent concrete sectional fracture test is convenient.
Finally, it should be noted that: the foregoing description is only of the preferred embodiments of the invention and is not intended to limit the scope of the invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a concrete placement heat dissipation test device, its characterized in that, including workstation (1), open logical groove (11) of one end have been seted up at the middle part of workstation (1), and the top of leading to groove (11) is provided with pouring groove (2), sets up cooling tube (3), its characterized in that in pouring groove (2): the upper end of the workbench (1) is provided with a test vehicle (4) sleeved outside the through groove (11) in a rolling mode, the test vehicle (4) comprises four rollers (41), a transverse shaft (42) is rotatably connected between the two rollers (41) of the test vehicle (4) close to the opening direction of the through groove (11), the middle of the transverse shaft (42) is fixedly connected with a supporting wheel (43) corresponding to the through groove (11), and the supporting wheel (43) is supported at the bottom of the pouring groove (2); the upper end of the test vehicle (4) is fixedly connected with a transverse plate (47) extending towards the opening direction of the through groove (11), and a pressing device (5) for pressing down the concrete in the through groove (11) is arranged on the transverse plate (47);
the pouring groove (2) comprises at least three segmented grooves (21) arranged along the length direction of the pouring groove, and one segmented groove (21) close to the other end of the through groove (11) is fixedly connected with the workbench (1); any two adjacent segment grooves (21) are hinged, so that one segment groove (21) close to the opening direction of the through groove (11) in the two segment grooves (21) can rotate downwards relative to the other segment groove (21); the pressing device (5) comprises a push rod (51), the middle part of the push rod (51) penetrates through the transverse plate (47) along the vertical direction, and the lower end of the push rod (51) is rotatably connected with a pressing shaft (52); the upper end of the transverse plate (47) is fixedly connected with a pressing oil cylinder (53) for driving the push rod (51) to move up and down, and the telescopic end of the pressing oil cylinder (53) is connected with the upper end of the push rod (51) through a pressure sensor (54); the concrete surface protection device is characterized in that the upper end of the transverse plate (47) is fixedly connected with a first oil cylinder (55), the telescopic end of the first oil cylinder (55) is fixedly connected with a limiting rod (56), the middle part of the limiting rod (56) penetrates through the transverse plate (47) along the vertical direction, and the lower end of the limiting rod (56) is fixedly connected with a protection plate (57) which is used for being pressed on the concrete surface.
2. The concrete pouring heat dissipation test device according to claim 1, wherein a longitudinal beam (44) is arranged between two rollers (41) on the side edge of the test vehicle (4), two upright posts (45) are fixedly connected to the upper end of each longitudinal beam (44), the upper ends of the four upright posts (45) are connected with a flat plate (46) above the pouring groove (2), and a transverse plate (47) is fixedly connected to the flat plate (46).
3. The concrete pouring heat dissipation test device according to claim 1, wherein rail grooves (411) are formed in the upper ends of the work tables (1) on two sides of the through groove (11), and the rollers (41) on two sides of the test vehicle (4) roll in the two rail grooves (411) respectively.
4. The concrete pouring heat dissipation test device according to claim 1, wherein a supporting rod (6) which extends obliquely along the length direction of the pouring groove (2) is arranged on one side of the push rod (51) away from the test vehicle (4), the upper end of the supporting rod (6) is hinged with the push rod (51) below the transverse plate (47) through a hinge shaft, and a first torsion spring with two ends respectively connected with the push rod (51) and the supporting rod (6) is arranged on the hinge shaft; the lower end of the supporting rod (6) is rotationally connected with a push roller (61), the height of the lower end of the push roller (61) in the horizontal direction is lower than that of the lower end of the pressing shaft (52) in the horizontal direction in a natural state, and two ends of the push roller (61) extend to the side walls of two sides of the sectional groove (21) respectively; the side wall upper ends of both sides of the sectional groove (21) are all provided with a plurality of triangular blocks (62) which are distributed at intervals along the length direction of the sectional groove (21), one side of each triangular block (62) facing the opening direction of the through groove (11) is a vertical limiting surface, and the other side of each triangular block (62) is an inclined surface.
5. The concrete pouring heat dissipation test device according to claim 4, wherein limiting plates (63) extending along the length direction of the sectional groove (21) are arranged on two sides of the sectional groove (21), and one end, close to the opening direction of the through groove (11), of each limiting plate (63) is connected with the outer wall of the sectional groove (21) through a connecting part extending downwards; the height of the limiting plate (63) in the horizontal direction is higher than the upper end of the triangular block (62), so that a limiting groove (64) with one open end is formed by matching the limiting plate (63) with the sectional groove (21), and a plurality of arc-shaped grooves (65) which are distributed at intervals along the length direction of the sectional groove (21) are formed in the lower end of the limiting plate (63) corresponding to the inner top surface of the limiting groove (64); both ends of the push roller (61) are coaxially connected with an extension shaft (66) which can enter between the limiting plate (63) and the sectional groove (21) along with the movement of the supporting rod (6).
6. The concrete pouring heat dissipation test device according to claim 5, wherein the other end of the limiting plate (63) is slidably connected with an anti-drop rod (631) penetrating through the limiting plate (63) along the vertical direction, an anti-drop spring (632) is fixedly connected between the upper end of the anti-drop rod (631) and the upper end of the limiting plate (63), and a guide inclined plane (633) which is convenient for guiding the extension shaft (66) from the outside of the limiting groove (64) to the inside of the limiting groove (64) is arranged at the lower end of the anti-drop rod (631).
7. The concrete pouring heat dissipation test device as defined in claim 1, wherein one of the two adjacent segment grooves (21) is a first segment groove, one segment groove (21) close to one end of the through groove (11) is a second segment groove, the lower end of the second segment groove is fixedly connected with a support plate (7) extending towards the direction of the first segment groove, the lower end of the first segment groove is fixedly connected with a vertical plate (71) positioned at one side of the support plate (7), the vertical plate (71) is slidingly connected with a round shaft (72) with the middle part penetrating through the vertical plate (71), a first spring (73) is fixedly connected between one end of the round shaft (72) far away from the support plate (7) and the vertical plate (71), a limit hole (74) is formed in the support plate (7), the other end of the round shaft (72) is inserted into the limit hole (74), a pushing shaft (75) which is in butt joint with the other end of the round shaft (72) and is in limit connection in the circumferential direction is movably connected with the other end of the round shaft (72), a stop block (76) is fixedly connected with one end of the round shaft (76) which is far away from the round shaft (72), and when the stop block (76) is fixedly connected with the other end (77), the pushing shaft (75) can move to the cambered surface of the cambered protrusion (78) and move towards the circular shaft (72) through the reverse pushing force of the cambered protrusion (78).
8. The concrete pouring heat dissipation test device according to claim 7, wherein the pushing shaft (75) is sleeved with a limiting sleeve (79), the limiting sleeve (79) is rotatably connected in the limiting hole (74), and the limiting sleeve (79) is connected with the support plate (7) through a reset torsion spring; the limiting sleeve (79) is internally provided with a key slot extending along the length direction of the pushing shaft (75), the outer side of the pushing shaft (75) is fixedly provided with a shaft key which is in sliding connection with the key slot, the outer side of the round shaft (72) is fixedly connected with a limiting block (721), and one end of the limiting block (721) is in sliding connection with the key slot of the limiting sleeve (79).
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Citations (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2856013A1 (en) * | 1978-12-23 | 1980-06-26 | Kernforschungsanlage Juelich | METHOD FOR LINER LEAK DETECTING AND A SUITABLE LINER LEAK DETECTING SYSTEM |
| DE4307899A1 (en) * | 1993-03-12 | 1994-09-15 | Foerdergemeinschaft Fuer Das S | Bending and test device for the strength of test-pieces, especially having thermoplastic weld connections or seams and bending-angle measurement device suitable therefor |
| DE19503895A1 (en) * | 1995-02-07 | 1996-08-08 | Putzmeister Maschf | Mobile concrete pumping unit with segmented delivery arm |
| JP2003121326A (en) * | 2001-10-18 | 2003-04-23 | Ishikawajima Harima Heavy Ind Co Ltd | Axial tensile break testing machine |
| JP2004053546A (en) * | 2002-07-24 | 2004-02-19 | Toda Constr Co Ltd | Measuring method of deterioration degree of concrete in concrete structure |
| JP2006118996A (en) * | 2004-10-21 | 2006-05-11 | Marutani Shiko Kk | Concrete tester and concrete testing method using it |
| KR20060068812A (en) * | 2004-12-17 | 2006-06-21 | 한국농촌공사 | The care of health temperature quality inspection examination device of the concrete building and inspection examination method |
| JP2007327880A (en) * | 2006-06-08 | 2007-12-20 | Tokyo Electric Power Co Inc:The | Instrument for measuring compression strength of concrete, and method of measuring compression strength of concrete |
| JP2015072211A (en) * | 2013-10-03 | 2015-04-16 | ダイヤリフォーム株式会社 | Concrete strength testing mold |
| CN105424494A (en) * | 2015-09-09 | 2016-03-23 | 中国水利水电科学研究院 | Concrete water cooling overall process testing device and method |
| CN206479527U (en) * | 2017-02-24 | 2017-09-08 | 北京科技大学 | The concrete experiments machine of high temperature and low temperature can be applied on concrete test block simultaneously |
| US9880081B1 (en) * | 2017-03-07 | 2018-01-30 | Ramesh Chandra Gupta | Expandable jacket for triaxial, unconfined and uniaxial compression tests and test device for three-dimensional consolidation and settlement tests |
| CN108375507A (en) * | 2018-01-15 | 2018-08-07 | 河海大学 | Quick changeable temperature couples the concrete for hydraulic structure hydraulic fracture device and method under complex stress condition |
| KR101913671B1 (en) * | 2017-06-02 | 2018-10-31 | 현대엔지니어링 주식회사 | Concrete compressive Test Piece for Double mold and the Testing mold making method the same |
| CN109238842A (en) * | 2018-07-20 | 2019-01-18 | 苏州热工研究院有限公司 | Stress corrosion high throughput evaluation method based on multi-section sample |
| CN111141610A (en) * | 2020-01-20 | 2020-05-12 | 廊坊市阳光建设工程质量检测有限公司 | Device for detecting compressive strength of concrete by using counter-pressure method and application method thereof |
| CN111715117A (en) * | 2020-06-04 | 2020-09-29 | 河南科技大学第一附属医院 | Blood detects shock device of preventing congealing |
| CN114397432A (en) * | 2022-03-24 | 2022-04-26 | 四川省水利水电勘测设计研究院有限公司 | Concrete structure surface crack detection device |
| CN217084472U (en) * | 2022-03-24 | 2022-07-29 | 南通润酉特种化纤有限公司 | Terylene tow twisted strand type tensile strength detection device |
| CN115468978A (en) * | 2022-09-06 | 2022-12-13 | 西南交通大学 | Method for testing heat transfer performance of concrete material of high-temperature hot water tunnel |
| GB202216160D0 (en) * | 2022-10-31 | 2022-12-14 | Univ Shijiazhuang Tiedao | Model test box with multifunctional loading method |
| CN218292881U (en) * | 2022-05-27 | 2023-01-13 | 郑光华 | Temperature control cooling device for large-volume concrete structure pouring |
| CN116256240A (en) * | 2023-02-08 | 2023-06-13 | 阜阳晶宫绿建节能建筑有限责任公司 | Precast slab on-line measuring device |
| CN116772216A (en) * | 2023-06-09 | 2023-09-19 | 丰城黑豹炭黑有限公司 | Combustion furnace with auxiliary combustion function |
| CN220084595U (en) * | 2023-06-20 | 2023-11-24 | 广西建鑫工程检测咨询有限公司 | Concrete compressive strength detection device |
-
2024
- 2024-03-14 CN CN202410288176.5A patent/CN117890425B/en active Active
Patent Citations (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2856013A1 (en) * | 1978-12-23 | 1980-06-26 | Kernforschungsanlage Juelich | METHOD FOR LINER LEAK DETECTING AND A SUITABLE LINER LEAK DETECTING SYSTEM |
| DE4307899A1 (en) * | 1993-03-12 | 1994-09-15 | Foerdergemeinschaft Fuer Das S | Bending and test device for the strength of test-pieces, especially having thermoplastic weld connections or seams and bending-angle measurement device suitable therefor |
| DE19503895A1 (en) * | 1995-02-07 | 1996-08-08 | Putzmeister Maschf | Mobile concrete pumping unit with segmented delivery arm |
| JP2003121326A (en) * | 2001-10-18 | 2003-04-23 | Ishikawajima Harima Heavy Ind Co Ltd | Axial tensile break testing machine |
| JP2004053546A (en) * | 2002-07-24 | 2004-02-19 | Toda Constr Co Ltd | Measuring method of deterioration degree of concrete in concrete structure |
| JP2006118996A (en) * | 2004-10-21 | 2006-05-11 | Marutani Shiko Kk | Concrete tester and concrete testing method using it |
| KR20060068812A (en) * | 2004-12-17 | 2006-06-21 | 한국농촌공사 | The care of health temperature quality inspection examination device of the concrete building and inspection examination method |
| JP2007327880A (en) * | 2006-06-08 | 2007-12-20 | Tokyo Electric Power Co Inc:The | Instrument for measuring compression strength of concrete, and method of measuring compression strength of concrete |
| JP2015072211A (en) * | 2013-10-03 | 2015-04-16 | ダイヤリフォーム株式会社 | Concrete strength testing mold |
| CN105424494A (en) * | 2015-09-09 | 2016-03-23 | 中国水利水电科学研究院 | Concrete water cooling overall process testing device and method |
| CN206479527U (en) * | 2017-02-24 | 2017-09-08 | 北京科技大学 | The concrete experiments machine of high temperature and low temperature can be applied on concrete test block simultaneously |
| US9880081B1 (en) * | 2017-03-07 | 2018-01-30 | Ramesh Chandra Gupta | Expandable jacket for triaxial, unconfined and uniaxial compression tests and test device for three-dimensional consolidation and settlement tests |
| KR101913671B1 (en) * | 2017-06-02 | 2018-10-31 | 현대엔지니어링 주식회사 | Concrete compressive Test Piece for Double mold and the Testing mold making method the same |
| CN108375507A (en) * | 2018-01-15 | 2018-08-07 | 河海大学 | Quick changeable temperature couples the concrete for hydraulic structure hydraulic fracture device and method under complex stress condition |
| CN109238842A (en) * | 2018-07-20 | 2019-01-18 | 苏州热工研究院有限公司 | Stress corrosion high throughput evaluation method based on multi-section sample |
| CN111141610A (en) * | 2020-01-20 | 2020-05-12 | 廊坊市阳光建设工程质量检测有限公司 | Device for detecting compressive strength of concrete by using counter-pressure method and application method thereof |
| CN111715117A (en) * | 2020-06-04 | 2020-09-29 | 河南科技大学第一附属医院 | Blood detects shock device of preventing congealing |
| CN114397432A (en) * | 2022-03-24 | 2022-04-26 | 四川省水利水电勘测设计研究院有限公司 | Concrete structure surface crack detection device |
| CN217084472U (en) * | 2022-03-24 | 2022-07-29 | 南通润酉特种化纤有限公司 | Terylene tow twisted strand type tensile strength detection device |
| CN218292881U (en) * | 2022-05-27 | 2023-01-13 | 郑光华 | Temperature control cooling device for large-volume concrete structure pouring |
| CN115468978A (en) * | 2022-09-06 | 2022-12-13 | 西南交通大学 | Method for testing heat transfer performance of concrete material of high-temperature hot water tunnel |
| GB202216160D0 (en) * | 2022-10-31 | 2022-12-14 | Univ Shijiazhuang Tiedao | Model test box with multifunctional loading method |
| CN116256240A (en) * | 2023-02-08 | 2023-06-13 | 阜阳晶宫绿建节能建筑有限责任公司 | Precast slab on-line measuring device |
| CN116772216A (en) * | 2023-06-09 | 2023-09-19 | 丰城黑豹炭黑有限公司 | Combustion furnace with auxiliary combustion function |
| CN220084595U (en) * | 2023-06-20 | 2023-11-24 | 广西建鑫工程检测咨询有限公司 | Concrete compressive strength detection device |
Non-Patent Citations (6)
| Title |
|---|
| Experimental study on mechanical properties of precast cracked concrete under different cooling methods;Yu Zhao 等;Construction and Building Materials;20210708;1-12 * |
| Investigation of the effect of high temperatures and different cooling conditions on the concrete with calcerous aggregates;Durmus G 等;Journal of the Faculty of Engineering and Architecture of Gazi University;20101231;741-748 * |
| 关于建筑工程混凝土浇筑施工技术应用实践分析;吴金胜;;江西建材;20161230(第24期);89+91 * |
| 含Ⅰ型裂纹的普通混凝土梁断裂特性的试验研究;童谷生 等;科学技术与工程;20180208;137-142 * |
| 大体积混凝土裂缝成因及控制研究;朱学军 等;科技信息;20110725;285 * |
| 高温后页岩轻骨料混凝土断裂特性;张云国 等;建筑科学与工程学报;20190715;120-126 * |
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