CN111693376B - Concrete compressive strength detection device - Google Patents
Concrete compressive strength detection device Download PDFInfo
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- CN111693376B CN111693376B CN202010595429.5A CN202010595429A CN111693376B CN 111693376 B CN111693376 B CN 111693376B CN 202010595429 A CN202010595429 A CN 202010595429A CN 111693376 B CN111693376 B CN 111693376B
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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
- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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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
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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
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- General Health & Medical Sciences (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a concrete compressive strength detection device, which comprises a bottom plate, a support rod, a top plate, a centering mechanism and a load mechanism, wherein the centering mechanism comprises an infrared emission tube, an infrared receiving tube, a sliding plate and an electric push rod, the load mechanism comprises a pressing block, a pressure sensor, a hydraulic cylinder, a controller and a display screen, when a concrete test piece is placed on a pressed station on the bottom plate, if the concrete test piece shields the infrared emission tube in the bottom plate, the controller controls the electric push rod on the same side of the shielded infrared emission tube to push the concrete test piece to move into the pressed station, then the controller controls the hydraulic cylinder to drive the pressing block to move downwards so as to break the concrete test piece, and compressive strength information in the detection process is displayed on the display screen, so that the consistency of the concrete test piece and the center of the pressing block can be ensured, the detection error caused by the deviation of the position of the concrete test piece is prevented, and the detection effect is ensured.
Description
Technical Field
The invention relates to the technical field of concrete detection, in particular to a concrete compressive strength detection device.
Background
The compressive strength of concrete is an important index for measuring the quality of concrete, and the existing compressive strength test of concrete basically applies a certain external force to a concrete test piece, and loads the concrete test piece continuously until the concrete test piece breaks, and the obtained ultimate load value is used as an index for evaluating the compressive strength of the concrete by recording the load value of the concrete test piece in the compression process.
The current detection device can cure and solidify concrete before detecting to obtain a concrete test piece with a cube structure, then the concrete test piece is moved to the detection device to be detected, the current detection mode is basically to detect the concrete test piece on a workbench by manual work, the problem of inaccurate centering of the concrete test piece exists by manual work, and therefore the problem of uneven stress of the concrete test piece can occur during detection, and finally the compressive strength analysis of the concrete test piece is affected.
Disclosure of Invention
Therefore, the invention provides the concrete compressive strength detection device, which can automatically center the concrete test piece after the concrete test piece is placed on the bottom plate, and ensure that the center of the concrete test piece and the center of the pressing block are positioned on the same vertical line.
The technical scheme of the invention is realized as follows:
the device for detecting the compressive strength of the concrete comprises a bottom plate, a supporting rod, a top plate, a centering mechanism and a load mechanism, wherein the supporting rod is connected between the bottom plate and the top plate, and the load mechanism is arranged on the top plate; the centering mechanism comprises an infrared transmitting tube, an infrared receiving tube, a sliding plate and an electric push rod, wherein the sliding plate penetrates from the side surfaces of a bottom plate and a top plate and is in sliding connection with the bottom plate and the top plate, the upper surface of the bottom plate and the lower surface of the top plate are provided with light emitting parts, the infrared transmitting tube and the infrared receiving tube are symmetrically arranged inside the bottom plate and the top plate and are positioned on the sliding plate, a pressed station is formed between the sliding plate and the light emitting parts, and the infrared transmitting tube is provided with a light emitting part; the electric push rod is arranged on the upper surface of the bottom plate and is positioned outside the compression station; the load mechanism comprises a pressing block, a pressure sensor, a hydraulic cylinder, a controller and a display screen, wherein the hydraulic cylinder is arranged on the bottom surface of the top plate, the pressing block is arranged below the hydraulic cylinder and connected with the hydraulic cylinder, the pressure sensor is arranged on the bottom surface of the pressing block, the display screen is arranged on the upper surface of the top plate, and the controller is respectively electrically connected with an infrared transmitting tube, an infrared receiving tube, the pressure sensor, the hydraulic cylinder, an electric push rod and the display screen.
Preferably, the side surface of the top plate and the side surface of the bottom plate are provided with sliding grooves, the sliding grooves are communicated with the light emitting part, and the sliding plate is in sliding connection with the sliding grooves.
Preferably, the side wall of the sliding chute is provided with a plurality of positioning grooves, the side wall of the sliding plate is provided with elastic collision beads, and the sliding plate slides to enable the elastic collision beads to be embedded into different positioning grooves, so that compression stations with different sizes are formed between the infrared transmitting tubes.
Preferably, a push plate is arranged on the output shaft of the electric push rod.
Preferably, the device further comprises a pressed surface horizontal detection mechanism, wherein the pressed surface horizontal detection mechanism is arranged on the bottom surface of the top plate and is positioned above the pressed station.
Preferably, the pressure receiving surface level detection mechanism comprises a lifting motor, a lifting plate, an angle sensor and an alarm, wherein the lifting motor is arranged on the bottom surface of the top plate, an output shaft of the lifting motor is in contact with the upper surface of the lifting plate, the angle sensor is arranged on the upper surface of the lifting plate, the alarm is arranged on the upper surface of the top plate, and the controller is respectively electrically connected with the lifting motor, the angle sensor and the alarm.
Preferably, a pressing button is arranged on the bottom surface of the lifting plate, and the controller is electrically connected with the pressing button.
Preferably, the upper surface of lifter plate is provided with the stand, the roof bottom surface is provided with trigger button, trigger button is located the stand top, the controller is connected with trigger button electricity.
Preferably, an electric folding plate is arranged at the edge position of the bottom surface of the top plate, and the controller is electrically connected with the electric folding plate.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a concrete compressive strength detection device, which is characterized in that after a cubic concrete test piece is placed on a bottom plate, the concrete test piece can shield an infrared emission tube, a controller controls an electric push rod on the same side of the shielded infrared emission tube to push the concrete test piece, so that the concrete test piece moves into a compression station formed by the infrared emission tube, the center of the concrete test piece and the center of a pressing block are ensured to be positioned on the same central line, when the pressing block is controlled to descend by a hydraulic cylinder, the pressure can be uniformly applied to the concrete test piece, the stress is uniform, the influence of deflection of the concrete test piece on the detection effect is prevented, the pressing block continuously applies force to the concrete test piece, the concrete test piece is broken, the pressure sensor records the pressure data change in the process and transmits the pressure data change to the controller, and the pressure information of the concrete test piece is displayed on a display screen after the data processing is performed by the controller.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only preferred embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a concrete compressive strength detecting device according to the present invention;
FIG. 2 is a schematic diagram showing a front view of a concrete compressive strength detecting device according to the present invention;
FIG. 3 is a schematic diagram showing a connection structure between a sliding plate and a bottom plate of a concrete compressive strength detecting device according to the present invention;
FIG. 4 is a schematic circuit diagram of a concrete compressive strength testing apparatus according to the present invention;
in the figure, 1 is a bottom plate, 2 is a supporting rod, 3 is a top plate, 4 is an infrared transmitting tube, 5 is an infrared receiving tube, 6 is a sliding plate, 7 is an electric push rod, 8 is a light emitting part, 9 is a pressed station, 10 is a pressing block, 11 is a pressure sensor, 12 is a hydraulic cylinder, 13 is a controller, 14 is a display screen, 15 is a sliding groove, 16 is a positioning groove, 17 is an elastic collision bead, 18 is a push plate, 19 is a lifting motor, 20 is a lifting plate, 21 is an angle sensor, 22 is an alarm, 23 is a pressing button, 24 is a stand column, 25 is a trigger button, and 26 is an electric folding plate.
Detailed Description
For a better understanding of the technical content of the present invention, a specific example is provided below, and the present invention is further described with reference to the accompanying drawings.
Referring to fig. 1 to 4, the device for detecting the compressive strength of concrete provided by the invention comprises a bottom plate 1, a supporting rod 2, a top plate 3, a centering mechanism and a load mechanism, wherein the supporting rod 2 is connected between the bottom plate 1 and the top plate 3, and the load mechanism is arranged on the top plate 3; the centering mechanism comprises an infrared emission tube 4, an infrared receiving tube 5, a sliding plate 6 and an electric push rod 7, wherein the sliding plate 6 penetrates from the side surfaces of the bottom plate 1 and the top plate 3 and is in sliding connection with the bottom plate 1 and the top plate 3, the upper surface of the bottom plate 1 and the lower surface of the top plate 3 are provided with light emitting parts 8, the infrared emission tube 4 and the infrared receiving tube 5 are symmetrically arranged inside the bottom plate 1 and the top plate 3 and are positioned on the sliding plate 6 and are positioned between the sliding plate 6 and the light emitting parts 8, and a pressed station 9 is formed between the infrared emission tubes 4; the electric push rod 7 is arranged on the upper surface of the bottom plate 1 and is positioned outside the pressed station 9; the load mechanism comprises a pressing block 10, a pressure sensor 11, a hydraulic cylinder 12, a controller 13 and a display screen 14, wherein the hydraulic cylinder 12 is arranged on the bottom surface of the top plate 3, the pressing block 10 is arranged below the hydraulic cylinder 12 and is connected with the hydraulic cylinder 12, the pressure sensor 11 is arranged on the bottom surface of the pressing block 10, the display screen 14 is arranged on the upper surface of the top plate 3, and the controller 13 is respectively electrically connected with the infrared transmitting tube 4, the infrared receiving tube 5, the pressure sensor 11, the hydraulic cylinder 12, the electric push rod 7 and the display screen 14.
In the concrete compressive strength detection device, when normal compressive strength detection is carried out, a concrete specimen is placed on a bottom plate 1 to be straightened, a hydraulic cylinder 12 is controlled by a controller 13 to move downwards and drive a pressing block 10 to move downwards synchronously, a pressure sensor 11 is arranged on the lower surface of the pressing block 10, the pressing block 10 moves downwards to be in contact with the upper surface of the concrete specimen, the pressure sensor 11 is arranged between the pressing block 10 and the concrete specimen, the controller 13 controls the hydraulic cylinder 12 to continuously apply force, so that the pressure applied by the pressing block 10 on the concrete specimen is gradually increased, when the pressure is increased to cause the concrete specimen to be broken, the detection process is completed, the pressure sensor 11 continuously transmits pressure data to the controller 13 in the whole detection process, the controller 13 processes the pressure data and converts the pressure data into compressive strength information of the concrete specimen, and the compressive strength information is displayed on a display screen 14, and thus a detection worker can check the detection process and a limit load value of the concrete specimen through the display screen 14.
On the other hand, when a detector places a concrete test piece on the bottom plate 1, the condition that the center of the concrete test piece is not consistent with the center of the pressing block 10 exists, in order to ensure the accuracy of the detection of the compressive strength of the concrete test piece, the invention also provides a centering mechanism, an infrared transmitting tube 4 is arranged in the bottom plate 1, an infrared receiving tube 5 is correspondingly arranged in the top plate 3, the infrared transmitting tube 4 can receive infrared light emitted by the infrared transmitting tube 5 through a light emitting part 8 arranged on the upper surface of the bottom plate 1 and the lower surface of the top plate 3, the quantity of the infrared transmitting tube 4 and the infrared receiving tube 5 is 4 or multiple of 4, the function of a foundation is realized by adopting 4 preferably, the infrared transmitting tube 4 and the infrared receiving tube 5 are of movable structures, and square compression stations 9 are formed among the 4 transmitting tubes, when the concrete test piece is detected, the concrete test piece is placed on the bottom plate 1, if the concrete test piece is not placed, the infrared transmitting tube 4 in the bottom plate 1 is shielded, the infrared receiving tube 5 of the corresponding top plate 3 can not receive infrared light and generate an electric signal, the controller 13 can not receive the electric signal transmitted by the corresponding infrared receiving tube 5 at the moment, then the controller 13 controls the electric push rod 7 at one side of the shielded infrared transmitting tube 4 to work so as to push the concrete test piece to move, when the concrete test piece leaves the infrared transmitting tube 4, the corresponding infrared receiving tube 5 receives infrared light again and transmits an electric signal to the controller 13, at the moment, the controller 13 can stop controlling the corresponding electric push rod 7, so that the concrete test piece can move into the pressed station 9 formed by the infrared transmitting tube 4, then, the hydraulic cylinder 12 is controlled to drive the pressing block 10 to detect the compressive strength, the center of the concrete test piece is guaranteed to be consistent with the center of the pressing block 10, the concrete test piece is guaranteed to be uniformly stressed, and the error of the compressive strength detection is reduced.
Specifically, the number of the electric push rods 7 is 4, the electric push rods are correspondingly arranged on one side of the infrared transmitting tubes 4 and are positioned outside the compression station 9, and the purpose is to push a concrete test piece into the compression station 9.
In order to enable the device to be suitable for concrete test pieces with various sizes, the infrared emission tube 4 and the infrared receiving tube 5 are arranged to be of a movable structure through the arrangement of the sliding plate 6, the sliding plate 6 penetrates into the interior from four sides of the bottom plate 1 and the top plate 3 and is in sliding connection with the bottom plate 1 and the top plate 3, the infrared emission tube 4 is arranged on the upper surface of the sliding plate and is positioned between the upper surface of the sliding plate 6 and the light emitting part 8, the infrared receiving tube 5 is arranged on the lower surface of the sliding plate 6 and is positioned between the lower surface of the sliding plate 6 and the light emitting part 8, when the sliding plate 6 is pulled, the positions of the infrared emission tube 4 or the infrared receiving tube 5 can be adjusted, so that the size of a pressed station 9 formed between the infrared emission tubes 4 is changed, and the positions of the infrared receiving tube 5 are correspondingly adjusted to correspond to the infrared emission tube 4, so that the device is suitable for concrete test pieces with different side lengths.
Preferably, the side of the top plate 3 and the side of the bottom plate 1 are provided with sliding grooves 15, the sliding grooves 15 are communicated with the light emergent part 8, the sliding plate 6 is slidably connected with the sliding grooves 15, the side wall of the sliding groove 15 is provided with a plurality of positioning grooves 16, the side wall of the sliding plate 6 is provided with elastic collision beads 17, and the sliding plate 6 slides to enable the elastic collision beads 17 to be embedded into different positioning grooves 16, so that the pressed stations 9 with different sizes are formed between the infrared emission tubes 4.
The sliding plate 6 can slide in the sliding groove 15, the height of the sliding groove 15 is larger than that of the sliding plate 6, so that the infrared transmitting tube 4 or the infrared receiving tube 5 can be arranged on the sliding plate 6, a plurality of positioning grooves 16 are formed in the side wall of the sliding groove 15, the positioning grooves 16 are designed in an array mode from the center of the bottom plate 1 to the outside, meanwhile, elastic collision beads 17 are arranged on the side wall of the sliding plate 6, when the sliding plate 6 is pulled, the elastic collision beads 17 on the sliding plate 6 can be moved to different positioning grooves 16 to clamp, on one hand, the fixing of the sliding plate 6 can be achieved, on the other hand, the distance between the positioning grooves 16 can correspond to concrete test pieces with different sizes, and therefore the size of the pressed station 9 can be changed by moving the elastic collision beads 17 to the position of the next positioning groove 16.
Preferably, a push plate 18 is disposed on the output shaft of the electric push rod 7.
The push plate 18 can increase the contact area with the concrete test piece, so that the concrete test piece can be pushed in parallel.
Preferably, the device further comprises a pressed surface horizontal detection mechanism, wherein the pressed surface horizontal detection mechanism is arranged on the bottom surface of the top plate 3 and is located above the pressed station 9, the pressed surface horizontal detection mechanism comprises a lifting motor 19, a lifting plate 20, an angle sensor 21 and an alarm 22, the lifting motor 19 is arranged on the bottom surface of the top plate 3, an output shaft of the lifting motor is in contact with the upper surface of the lifting plate 20, the angle sensor 21 is arranged on the upper surface of the lifting plate 20, the alarm 22 is arranged on the upper surface of the top plate 3, and the controller 13 is respectively electrically connected with the lifting motor 19, the angle sensor 21 and the alarm 22.
Specifically, the invention also provides a function of detecting the level of the pressed surface, after the concrete test piece is pushed into the pressed station 9, the controller 13 controls the lifting motor 19 to drive the lifting plate 20 to descend to the top surface of the concrete test piece, corresponding angle information is collected through the angle sensor 21 and transmitted to the controller 13, if the controller 13 judges that the upper surface of the concrete test piece is level, the lifting motor 19 is controlled to drive the lifting plate 20 to ascend and the hydraulic cylinder 12 is driven to drive the pressing plate to detect the compressive strength, and if the controller 13 judges that the upper surface of the concrete test piece is in a non-level state according to the information collected by the angle sensor 21, the controller 13 controls the alarm to send an alarm to prompt a detector to replace the concrete test piece, so that the finally detected data is prevented from affecting the whole data.
Preferably, a pressing button 23 is provided on the bottom surface of the lifting plate 20, and the controller 13 is electrically connected to the pressing button 23.
When the lifting motor 19 drives the lifting plate 20 to descend, the bottom surface of the lifting plate 20 is in contact with the top surface of the concrete test piece, the push button 23 is triggered when the lifting plate is in contact, the push button 23 sends an electric signal to the controller 13, and then the controller 13 judges the horizontal state according to the received information of the angle sensor 21, so that the interference of horizontal detection caused by the angle information collected by the angle sensor 21 in the descending process of the lifting plate 20 is prevented.
Preferably, the upper surface of the lifting plate 20 is provided with a stand column 24, the bottom surface of the top plate 3 is provided with a trigger button 25, the trigger button 25 is located above the stand column 24, and the controller 13 is electrically connected with the trigger button 25.
When the level detection is completed, the lifting plate 20 is driven by the lifting motor 19 to rise, and when the upright post 24 is contacted with the trigger button 25, the trigger button 25 sends an electric signal to the controller 13, and the controller 13 stops driving the lifting motor 19 when receiving the electric signal.
Preferably, an electric folding plate 26 is disposed at the edge position of the bottom surface of the top plate 3, and the controller 13 is electrically connected to the electric folding plate 26.
The electric folding plate 26 can seal when the compressive strength is detected, so that part of scraps are prevented from splashing out to damage external equipment or injure detection personnel when the concrete test piece is broken.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (9)
1. The concrete compressive strength detection device is characterized by comprising a bottom plate, a support rod, a top plate, a centering mechanism and a load mechanism, wherein the support rod is connected between the bottom plate and the top plate, and the load mechanism is arranged on the top plate; the centering mechanism comprises an infrared transmitting tube, an infrared receiving tube, a sliding plate and an electric push rod, wherein the sliding plate penetrates from the side surfaces of a bottom plate and a top plate and is in sliding connection with the bottom plate and the top plate, the upper surface of the bottom plate and the lower surface of the top plate are provided with light emitting parts, the infrared transmitting tube and the infrared receiving tube are symmetrically arranged inside the bottom plate and the top plate and are positioned on the sliding plate, a pressed station is formed between the sliding plate and the light emitting parts, and the infrared transmitting tube is provided with a light emitting part; the electric push rod is arranged on the upper surface of the bottom plate and is positioned outside the compression station; the load mechanism comprises a pressing block, a pressure sensor, a hydraulic cylinder, a controller and a display screen, wherein the hydraulic cylinder is arranged on the bottom surface of the top plate, the pressing block is arranged below the hydraulic cylinder and connected with the hydraulic cylinder, the pressure sensor is arranged on the bottom surface of the pressing block, the display screen is arranged on the upper surface of the top plate, and the controller is respectively electrically connected with an infrared transmitting tube, an infrared receiving tube, the pressure sensor, the hydraulic cylinder, an electric push rod and the display screen.
2. The concrete compressive strength testing apparatus according to claim 1, wherein the top plate side surface and the bottom plate side surface are provided with slide grooves, the slide grooves are communicated with the light emitting portion, and the slide plate is slidably connected with the slide grooves.
3. The concrete compressive strength detecting device according to claim 2, wherein the side wall of the chute is provided with a plurality of positioning grooves, the side wall of the sliding plate is provided with elastic collision beads, and the sliding plate slides to enable the elastic collision beads to be embedded into different positioning grooves, so that compression stations with different sizes are formed between the infrared transmitting tubes.
4. The concrete compressive strength detecting device according to claim 1, wherein a push plate is provided on an output shaft of the electric push rod.
5. The concrete compressive strength testing apparatus according to claim 1, further comprising a compression surface level testing mechanism disposed on the bottom surface of the top plate above the compression station.
6. The concrete compressive strength testing apparatus according to claim 5, wherein the pressed surface level testing mechanism comprises a lifting motor, a lifting plate, an angle sensor and an alarm, wherein the lifting motor is arranged on the bottom surface of the top plate, the output shaft of the lifting motor is in contact with the upper surface of the lifting plate, the angle sensor is arranged on the upper surface of the lifting plate, the alarm is arranged on the upper surface of the top plate, and the controller is respectively electrically connected with the lifting motor, the angle sensor and the alarm.
7. The concrete compressive strength testing apparatus according to claim 6, wherein the bottom surface of the lifting plate is provided with a push button, and the controller is electrically connected with the push button.
8. The concrete compressive strength testing apparatus according to claim 6, wherein the lifting plate is provided with a column on an upper surface thereof, the top plate is provided with a trigger button on a bottom surface thereof, the trigger button is located above the column, and the controller is electrically connected with the trigger button.
9. The concrete compressive strength testing apparatus according to claim 1, wherein an electric folding plate is provided at an edge position of the bottom surface of the top plate, and the controller is electrically connected to the electric folding plate.
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| CN202010595429.5A CN111693376B (en) | 2020-06-28 | 2020-06-28 | Concrete compressive strength detection device |
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