CN210293904U - A rapid test device for concrete fracture toughness - Google Patents
A rapid test device for concrete fracture toughness Download PDFInfo
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- CN210293904U CN210293904U CN201921216497.5U CN201921216497U CN210293904U CN 210293904 U CN210293904 U CN 210293904U CN 201921216497 U CN201921216497 U CN 201921216497U CN 210293904 U CN210293904 U CN 210293904U
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- 238000012360 testing method Methods 0.000 title claims abstract description 34
- 230000005611 electricity Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 12
- 238000001514 detection method Methods 0.000 abstract description 8
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 206010066054 Dysmorphism Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
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Abstract
本实用新型公开了一种混凝土断裂韧性快速测试装置，其结构包括支撑架、工作台面、固定装置、支撑板、压力测试装置、控制器、开关按键、显示屏、电源线、电路板和单片机，本实用新型通过设置了压力测试装置，压力测试装置通过电机进行驱动，电机通过连杆组成的往复机构与施压杆进行连接，且施压杆内部安装由压力传感器，通过驱动电机对控制施压杆进行往复垂直运作，通过施压杆对混凝土板进行敲击施压，通过施压杆内部的压力传感器对每次敲击时产生的压力进行检测，且通过显示屏进行数据显示，达到了方便对混凝土板在连续受压和抗冲击效果进行检测，进而增加对混凝土板的断裂韧性检测效果，且更加直观的显示混凝土板的受压力度的有益效果。
The utility model discloses a rapid testing device for concrete fracture toughness. The utility model is provided with a pressure test device, the pressure test device is driven by a motor, the motor is connected with the pressure rod through a reciprocating mechanism composed of connecting rods, and a pressure sensor is installed inside the pressure rod, and the control is pressurized by the driving motor The rod performs reciprocating vertical operation, and the concrete slab is tapped and pressed by the pressure rod. The pressure generated by each tap is detected by the pressure sensor inside the pressure rod, and the data is displayed on the display screen, which is convenient The continuous compression and impact resistance effects of the concrete slab are detected, thereby increasing the fracture toughness detection effect of the concrete slab, and the beneficial effect of displaying the compression degree of the concrete slab more intuitively.
Description
Technical Field
The utility model relates to a concrete toughness test equipment technical field, concretely relates to quick testing arrangement of concrete fracture toughness.
Background
As the most widely used building materials in the world, concrete is not only found on common buildings, but also in building houses in the same complex working environment, such as pressure vessels of dams, drilling platforms, nuclear power plants, and the like, concrete is applied, so that people not only pay attention to the basic performances of tensile strength, compressive strength, and the like of concrete, but also pay more attention to the fracture characteristics and damage basic principles, and therefore a concrete fracture toughness rapid testing device is needed to test the toughness of concrete, the prior art presses a concrete slab by a cylinder, presses the concrete slab, and then judges the toughness of concrete according to the damage or bending degree of the concrete slab, but the prior art has a single detection mode, can only judge the toughness of concrete according to the damage condition of concrete, and is inconvenient to detect the compression strength of the concrete slab, and it is inconvenient to detect the continuous pressing and impact resistance effects of the concrete slabs.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to overcome prior art not enough, the quick testing arrangement of concrete fracture toughness has now been proposed, it is single to have solved prior art detection mode, be not convenient for detect concrete slab's pressure degree, and be not convenient for carry out the problem that detects at continuous pressurized and shock-resistant effect to concrete slab, it detects at continuous pressurized and shock-resistant effect to have reached the convenience to concrete slab, and then increase the fracture toughness detection effect to concrete slab, and the beneficial effect of more audio-visual demonstration concrete slab's the degree of stress.
(II) technical scheme
The utility model discloses a following technical scheme realizes: the utility model provides a quick testing arrangement of concrete fracture toughness, including support frame, table surface, fixing device, backup pad, pressure test device, controller, switch button, display screen, power cord, circuit board and singlechip, table surface is installed on the support frame top, table surface mid-mounting has fixing device, the table surface rear end passes through the bolt and fixes with backup pad mutual locking, a controller is installed to the support frame right-hand member, switch button and display screen imbed respectively in the recess of both sides about the controller front end, the power cord left end stretches into inside the controller, controller internally mounted has the circuit board, and installs the singlechip on the circuit board, pressure test device is installed on backup pad front side top.
Furthermore, the pressure testing device is composed of an outer frame, a motor, a rotary table, a supporting shaft, a first connecting rod, a second connecting rod, a limiting pipe and a pressure applying rod, wherein the motor is installed on the left side of the outer frame, an output shaft at the right end of the motor penetrates through the outer frame to be inserted into the circle center of the rotary table, a supporting shaft is welded at the edge of the left side of the rotary table, the top end of the first connecting rod is sleeved outside the supporting shaft to be connected in a rotating mode, the bottom end of the first connecting rod rotates concentrically with the second connecting rod through a rotating shaft, the limiting pipe penetrates through the bottom end of the outer frame and is mutually locked and fixed with the outer frame through a bolt, the top end of the pressure applying rod penetrates through the limiting pipe to extend into the inner portion of the outer frame, the top end of the pressure applying rod is connected with the second connecting rod, the rear end of, The display screen, the power line, the motor and the pressure applying rod are electrically connected.
Further, fixing device comprises supporting shoe, fixed plate, spacing, hand wheel and screw rod, spacing is all installed to both sides around the fixed plate bottom, the spout has all been seted up to both sides around the supporting shoe top left end, and spacing stretches into and slides from top to bottom in this spout, the screw rod runs through the fixed plate and pegs graft each other with the hand wheel, the screw rod bottom carries out threaded connection with the supporting shoe, the supporting shoe is fixed on table surface.
Further, the pressure applying rod is composed of a rod body, a pressure sensor, a straight rod, a knocking head, a polished rod, supporting plates and a rotating shaft, the pressure sensor is installed between the rod body and the straight rod, the knocking head is welded at the bottom end of the straight rod, the top end of the rod body is welded with the polished rod, the supporting plates are welded on the left side and the right side of the top end of the polished rod, the rotating shaft transversely penetrates through the two supporting plates at the top end of the polished rod, the polished rod extends into the outer frame through a limiting pipe, the rotating shaft is rotatably connected with the second connecting rod, and the pressure sensor is electrically connected with the single chip microcomputer.
Furthermore, the two fixing devices are symmetrically arranged on the center line of the working table.
Furthermore, the limiting strips are provided with two square limiting strips, and the outer sides of the limiting strips are attached to the inner walls of the sliding grooves in the supporting blocks.
Furthermore, the knocking head is in a semi-sphere shape.
Furthermore, the outer side of the polished rod is attached to the inner wall of the limiting pipe.
Furthermore, the motor is a series motor with the model number of Y2-160L-4.
Furthermore, the rod body, the straight rod and the knocking head are all made of stainless steel.
Further, the pressure sensor 582 adopts a BD-SENSORS pressure sensor in Germany.
(III) advantageous effects
Compared with the prior art, the utility model, following beneficial effect has:
in order to solve the problems that the prior art has single detection mode and is inconvenient to detect the compression force of the concrete slab, and the utility model is inconvenient for detecting the continuous compression and impact resistance effect of the concrete slab, the utility model is provided with the pressure testing device which is driven by the motor, the motor is connected with the pressure applying rod by the reciprocating mechanism consisting of the connecting rod, and the pressure applying rod is internally provided with the pressure sensor, the control pressure applying rod is vertically operated in a reciprocating way through the driving motor, the concrete plate is knocked and pressed through the pressure applying rod, the pressure sensor in the pressure applying rod detects the pressure generated by knocking each time, and the display screen displays data, thereby achieving the purpose of conveniently detecting the continuous compression and impact resistance effects of the concrete slab, and then increase the fracture toughness detection effect to concrete slab, and the beneficial effect of the stress degree of more audio-visual demonstration concrete slab.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of the circuit board structure of the present invention;
FIG. 3 is a schematic structural view of the fixing device of the present invention;
FIG. 4 is a right side view of the internal structure of the pressure testing device of the present invention;
fig. 5 is a schematic structural view of the pressing rod of the present invention.
In the figure: the device comprises a support frame-1, a workbench surface-2, a fixing device-3, a support plate-4, a pressure testing device-5, a controller-6, a switch button-7, a display screen-8, a power line-9, a circuit board-10, a single chip microcomputer-11, a support block-31, a fixing plate-32, a limit strip-33, a hand wheel-34, a screw rod-35, an outer frame-51, a motor-52, a turntable-53, a support shaft-54, a first connecting rod-55, a second connecting rod-56, a limit pipe-57, a pressure applying rod-58, a rod body-581, a pressure sensor-582, a straight rod-583, a knocking head-584, a polish rod-585, a support plate-586 and a rotating shaft-587.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the present invention provides a device for rapidly testing fracture toughness of concrete: including support frame 1, table surface 2, fixing device 3, backup pad 4, pressure test device 5, controller 6, switch button 7, display screen 8, power cord 9, circuit board 10 and singlechip 11, table surface 2 is installed on support frame 1 top, 2 mid-mounting of table surface have fixing device 3, 2 rear ends of table surface are fixed with backup pad 4 mutual locking through the bolt, a controller 6 is installed to 1 right-hand member of support frame, switch button 7 and display screen 8 imbed respectively in the recess of both sides about 6 front ends of controller, 9 left ends of power cord stretch into to controller 6 inside, 6 internally mounted of controller has circuit board 10, and install singlechip 11 on the circuit board 10, pressure test device 5 is installed on 4 front sides tops of backup pad.
The pressure testing device 5 comprises an outer frame 51, a motor 52, a turntable 53, a supporting shaft 54, a first connecting rod 55, a second connecting rod 56, a limiting pipe 57 and a pressure applying rod 58, wherein the motor 52 is installed on the left side of the outer frame 51, an output shaft at the right end of the motor 52 penetrates through the outer frame 51 and is inserted into the circle center of the turntable 53, the supporting shaft 54 is welded at the left side edge of the turntable 53, the top end of the first connecting rod 55 is sleeved outside the supporting shaft 54 to be rotatably connected, the bottom end of the first connecting rod 55 and the second connecting rod 56 concentrically rotate through a rotating shaft, the limiting pipe 57 penetrates through the bottom end of the outer frame 51, the limiting pipe 57 and the outer frame 51 are mutually locked and fixed through bolts, the top end of the pressure applying rod 58 penetrates through the limiting pipe 57 and extends into the outer frame 51, the top end of the pressure applying rod 58 is connected with the second connecting rod 56, the rear end of the outer, The display screen 8, the power cord 9, the motor 52 and the pressure applying rod 58 are electrically connected.
The fixing device 3 is composed of a supporting block 31, a fixing plate 32, limiting strips 33, a hand wheel 34 and a screw rod 35, the limiting strips 33 are installed on the front side and the rear side of the bottom end of the fixing plate 32, sliding grooves are formed in the front side and the rear side of the left end of the top of the supporting block 31, the limiting strips 33 stretch into the sliding grooves to slide up and down, the screw rod 35 penetrates through the fixing plate 32 and the hand wheel 34 to be mutually inserted, the bottom end of the screw rod 35 is in threaded connection with the supporting block 31, and the supporting block 31 is fixed on the working table surface 2.
Wherein, pressure bar 58 comprises the body of rod 581, pressure sensor 582, straight-bar 583, strikes head 584, polished rod 585, extension board 586 and axis of rotation 587, pressure sensor 582 installation and body of rod 581 and straight-bar 583 between, the welding of straight-bar 583 bottom has one to strike head 584, body of rod 581 top and polished rod 585 mutual welding, polished rod 585 top left and right sides all has welded extension board 586, and axis of rotation 587 transversely runs through two extension boards on polished rod 585 top, polished rod 585 stretches into in the frame 51 through spacing pipe 57, and axis of rotation 587 rotates with second connecting rod 56 and is connected, pressure sensor 582 is connected with singlechip 11 electricity through the connection port on the circuit board 10.
Wherein, fixing device 3 is provided with two, and is the symmetry setting with 2 central lines of table surface, is favorable to fixing the concrete slab left and right sides.
The two limiting strips 33 are square, the outer sides of the two limiting strips are attached to the inner walls of the sliding grooves in the supporting blocks 31, the rotation of the fixing plate 32 is limited, and the supporting blocks 31 are controlled to move up and down when the screw 35 rotates.
The knocking head 584 is in a semi-sphere shape, so that single-point knocking on the concrete slab is facilitated, and the toughness testing effect is improved.
Wherein, the polished rod 585 outside is laminated with spacing pipe 57 inner wall, is favorable to through spacing pipe 57 to the restriction of pressure applying rod 58, makes pressure applying rod 58 carry out vertical operation from top to bottom, carries out vertical striking to concrete slab.
The motor 52 is a Y2-160L-4 pole series motor, the pressure generated when the motor 52 rotates is 6000 Pa, the rotating force is large, and the service life is long.
The rod body 581, the straight rod 583 and the knocking head 584 are made of stainless steel, so that the stainless steel is high in hardness, not easy to damage and not easy to rust.
The pressure sensor 582 adopts a BD-SENSORS pressure sensor in Germany, and the detection range of the pressure sensor is from 0.1mbar to 6000 bar.
The pressure sensor 582 of this patent, be can experience pressure signal to can be according to certain law with the device or the device of the usable signal of telecommunication of pressure signal conversion, pressure sensor usually comprises pressure sensing element and signal processing unit, according to different test pressure types, pressure sensor can divide into gauge pressure sensor, differential pressure sensor and absolute pressure sensor.
The working principle is as follows: before the device is used, firstly, the device is placed on a plane floor through a support frame 1, then a power line 9 is connected with an external power supply to supply power, when the device is used, a concrete slab to be detected is placed on a supporting block 31, a hand wheel 34 is rotated clockwise, the hand wheel 34 drives a screw 35 to rotate, as the front side and the rear side of the bottom end of a fixing plate 32 are inserted into the supporting block 31 through limiting strips, the screw 35 extends into the supporting block 31 through the matching between threads when rotating, the fixing plate 32 is pressed down through the hand wheel 34, the concrete slab is clamped and fixed through the pressing down of the fixing plate 32, then a switch key 7 is pressed down to send a control instruction, a motor 52 and a pressure sensor 582 are respectively controlled through data calculation of a single chip microcomputer 11, the motor 52 is controlled to generate power to drive the circle center of a turntable 53 to rotate through an output shaft, the turntable 53 drives the top end of a first connecting rod 55 to circularly rotate along, first connecting rod 55 bottom drives axis of rotation 587 through second connecting rod 56, reciprocate, and second connecting rod 56 rotates along axis of rotation 587, and because polished rod 585 of axis of rotation 587 bottom restricts through spacing pipe 57, make polished rod 585 reciprocate from top to bottom and operate, polished rod 585 drives and exerts pressure pole 58 and reciprocates from top to bottom and operate, strike head 584 through exerting pressure pole 58 bottom and strike concrete slab reciprocal, and the pressure when knocking at every turn through pressure sensor 582 between the body of rod 581 and straight-bar 583 detects, and carry out data display through display screen 8 to the pressure that produces when knocking at every turn, fracture toughness through pressure data and concrete judges the fracture condition of concrete, increase the fracture toughness detection effect to concrete slab, and the pressure receiving degree of more audio-visual display concrete slab.
The basic principle and the main characteristics of the utility model and the advantages of the utility model have been shown and described above, and the utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the record of the description with the drawing, and the concrete connection mode of each part all adopts conventional means such as ripe bolt rivet among the prior art, welding, and machinery, part and equipment all adopt prior art, conventional model, and conventional connection mode in the prior art is adopted in addition to circuit connection, and the details are not repeated here.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a quick testing arrangement of concrete fracture toughness, includes support frame (1), table surface (2), fixing device (3), backup pad (4), controller (6), switch button (7), display screen (8), power cord (9), circuit board (10) and singlechip (11), its characterized in that: still include pressure test device (5), table surface (2) are installed on support frame (1) top, table surface (2) mid-mounting has fixing device (3), it is fixed that table surface (2) rear end passes through bolt and backup pad (4) locking each other, a controller (6) is installed to support frame (1) right-hand member, switch button (7) and display screen (8) imbed respectively in the recess of both sides about controller (6) front end, power cord (9) left end stretches into to controller (6) inside, controller (6) internally mounted has circuit board (10), and installs singlechip (11) on circuit board (10), pressure test device (5) are installed on backup pad (4) front side top.
2. The device for rapidly testing the fracture toughness of the concrete according to claim 1, wherein: the pressure testing device (5) comprises an outer frame (51), a motor (52), a turntable (53), a supporting shaft (54), a first connecting rod (55), a second connecting rod (56), a limiting pipe (57) and a pressure applying rod (58), wherein the motor (52) is installed on the left side of the outer frame (51), an output shaft at the right end of the motor (52) penetrates through the outer frame (51) and is inserted into the circle center of the turntable (53), the supporting shaft (54) is welded on the left side edge of the turntable (53), the top end of the first connecting rod (55) is sleeved on the outer side of the supporting shaft (54) to be rotatably connected, the bottom end of the first connecting rod (55) rotates concentrically with the second connecting rod (56) through a rotating shaft, the limiting pipe (57) penetrates through the bottom end of the outer frame (51), the limiting pipe (57) is mutually locked and fixed with the outer frame (51) through a bolt, and the top end of the pressure applying rod (58) penetrates through the limiting, the top end of the pressure applying rod (58) is connected with the second connecting rod (56), the rear end of the outer frame (51) is mutually locked and fixed with the support plate (4) through a bolt, and the single chip microcomputer (11) is respectively and electrically connected with the switch key (7), the display screen (8), the power line (9), the motor (52) and the pressure applying rod (58) through a connecting port on the circuit board (10).
3. The device for rapidly testing the fracture toughness of the concrete according to claim 1, wherein: fixing device (3) comprise supporting shoe (31), fixed plate (32), spacing (33), hand wheel (34) and screw rod (35), spacing (33) are all installed to both sides around fixed plate (32) bottom, the spout has all been seted up to both sides around supporting shoe (31) top left end, and slides from top to bottom in spacing (33) stretch into this spout, screw rod (35) run through fixed plate (32) and hand wheel (34) and peg graft each other, screw rod (35) bottom and supporting shoe (31) carry out threaded connection, supporting shoe (31) are fixed on table surface (2).
4. The device for rapidly testing the fracture toughness of the concrete according to claim 2, is characterized in that: pressure bar (58) comprise the body of rod (581), pressure sensor (582), straight-bar (583), strike head (584), polished rod (585), extension board (586) and axis of rotation (587), pressure sensor (582) installation and body of rod (581) and straight-bar (583) between, straight-bar (583) bottom weld has one to strike head (584), body of rod (581) top and polished rod (585) interconnect weld, extension board (586) have all been welded to polished rod (585) top left and right sides, and axis of rotation (587) transversely run through two extension boards on polished rod (585) top, polished rod (585) stretch into to frame (51) in through spacing pipe (57), and axis of rotation (587) rotate with second connecting rod (56) and be connected, pressure sensor (582) are connected with singlechip (11) electricity through the connection port on circuit board (10).
5. The device for rapidly testing the fracture toughness of the concrete according to claim 1, wherein: the two fixing devices (3) are symmetrically arranged along the central line of the working table top (2).
6. The device for rapidly testing the fracture toughness of the concrete according to claim 3, wherein: the two limiting strips (33) are square and attached to the inner wall of the sliding groove in the supporting block (31) at the outer side.
7. The device for rapidly testing the fracture toughness of the concrete according to claim 4, wherein: the knocking head (584) is in a semi-sphere shape.
8. The device for rapidly testing the fracture toughness of the concrete according to claim 4, wherein: the outer side of the polished rod (585) is attached to the inner wall of the limiting pipe (57).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921216497.5U CN210293904U (en) | 2019-07-29 | 2019-07-29 | A rapid test device for concrete fracture toughness |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921216497.5U CN210293904U (en) | 2019-07-29 | 2019-07-29 | A rapid test device for concrete fracture toughness |
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| Publication Number | Publication Date |
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| CN210293904U true CN210293904U (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921216497.5U Expired - Fee Related CN210293904U (en) | 2019-07-29 | 2019-07-29 | A rapid test device for concrete fracture toughness |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405918A (en) * | 2021-06-09 | 2021-09-17 | 重庆交通大学 | Device for automatically determining fracture toughness of soil body and using method thereof |
| CN113405913A (en) * | 2021-06-09 | 2021-09-17 | 重庆交通大学 | Device for soil fracture toughness and tensile strength and using method thereof |
-
2019
- 2019-07-29 CN CN201921216497.5U patent/CN210293904U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405918A (en) * | 2021-06-09 | 2021-09-17 | 重庆交通大学 | Device for automatically determining fracture toughness of soil body and using method thereof |
| CN113405913A (en) * | 2021-06-09 | 2021-09-17 | 重庆交通大学 | Device for soil fracture toughness and tensile strength and using method thereof |
| CN113405918B (en) * | 2021-06-09 | 2024-01-26 | 重庆交通大学 | Device for automatically determining soil body fracture toughness and application method thereof |
| CN113405913B (en) * | 2021-06-09 | 2024-01-26 | 重庆交通大学 | Device for soil body fracture toughness and tensile strength and application method thereof |
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