CN113029830A - Experimental device suitable for elasticity toughness of cement-based material can detect - Google Patents
Experimental device suitable for elasticity toughness of cement-based material can detect Download PDFInfo
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- CN113029830A CN113029830A CN202110354036.XA CN202110354036A CN113029830A CN 113029830 A CN113029830 A CN 113029830A CN 202110354036 A CN202110354036 A CN 202110354036A CN 113029830 A CN113029830 A CN 113029830A
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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
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/303—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated only by free-falling weight
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The invention discloses an experimental device suitable for detecting the elasticity and toughness of a cement-based material, which comprises a supporting vertical frame, a driver, a detection force application seat, a deformation detection mechanism and a micro-elasticity detection mechanism, wherein the supporting vertical frame is arranged in a frame structure, the top of the supporting vertical frame is provided with the driver through a guide rail, the lower end of the driver is provided with the detection force application seat, each detection force application seat is provided with the micro-elasticity detection mechanism, the middle lower part of the supporting vertical frame is symmetrically provided with the deformation detection mechanism, and the driver, the deformation detection mechanism and the micro-elasticity detection mechanism are in signal connection with a control device. The invention has compact structure, small volume, simple and convenient operation and use and strong reliability, can flexibly adjust the magnitude of applied force and meet the detection requirements of cement-based materials with different specifications and sizes; through multiple detection of the deformation detection mechanism and the micro-elastic detection mechanism, the uniformity of performance parameters of the standard sample for detecting the impact toughness of the cement-based material is ensured, and the detection precision is high.
Description
Technical Field
The invention belongs to the technical field of cement-based material detection equipment, and particularly relates to an experimental device suitable for detecting the elastic toughness of a cement-based material.
Background
The cement-based material has been used in road, bridge, tunnel and building engineering for nearly one hundred years, effectively improves urban traffic conditions and prolongs the service life of the pavement. Along with urban roads because of reasons such as large traffic volume, frequent use, complex environment, etc., the existing cement-based materials can not meet the road construction requirements, and in order to further improve the driving environment of urban roads, prolong the service life of the urban roads and develop the environment purification function of the urban roads, novel cement-based materials need to be further developed.
In the development process, the elasticity and toughness performance of the cement-based material need to be tested. At present, no special experimental detection device for testing the elasticity and toughness performance of the cement-based material exists, experimental tests are carried out by means of other equipment, and the volume of the experimental detection device is large; when in detection, a road needs to be specially paved, the occupied space is large, the experimental test data is not necessarily accurate, the detection cost is high, and the method is not suitable for the test detection of small cement-based materials.
Therefore, the key point for solving the problems is to develop an experimental device for detecting the elastic toughness property of the small-amount cement-based material.
Disclosure of Invention
The invention aims to provide an experimental device suitable for detecting the elastic toughness of a cement-based material.
The invention is realized by the following technical scheme: including supporting grudging post, driver, detection application of force seat, deformation detection mechanism, bullet detection mechanism a little, the setting of supporting the grudging post is frame construction, all establishes three piece at least guide rails, three at least drivers on each guide rail at the support grudging post top along Y axle direction, each the lower extreme of driver sets up respectively and detects the application of force seat, at each it sets up bullet detection mechanism a little on the detection application of force seat, the well lower part of supporting the grudging post sets up three group at least deformation detection mechanism along Y axle direction symmetry, the lower part on the both sides limit of supporting the grudging post is provided with clamping device along Y axle direction symmetry, driver, deformation detection mechanism, bullet detection mechanism signal connection controlling means a little.
Further, deformation detection mechanism include measuring pole, connecting branch, buffering protection pad, level detector, the measuring pole is through connecting branch joint support grudging post, is provided with the jack on the measuring pole, connecting branch sets up to be "T" font structure, be provided with the inserted pin with the jack adaptation on it, the bottom of measuring pole sets up level detector the bottom of level detector sets up the buffering protection pad, is furnished with miniature range finding laser chi on the measuring pole.
Further, little bullet detection mechanism include erection support, adapter sleeve, connecting rod, spring, play detector a little and cushion the protection pad, erection support sets up on detecting application of force seat along X axle direction symmetry, the last connecting rod that sets up through adapter sleeve of erection support, adapter sleeve and connecting rod sliding fit, the spring sets up in adapter sleeve, and it makes progress the jacking connecting rod, the bottom of connecting rod sets up the detector a little the bottom of the detector a little is played and is set up the buffering protection pad.
The invention has the beneficial effects that: the invention has compact structure, small volume, simple and convenient operation and use and strong reliability, can flexibly adjust the magnitude of applied force and meet the detection requirements of cement-based materials with different specifications and sizes; the elasticity and toughness performance of the cement-based material are tested through a stress-strain test curve with force, deformation and stability to carry out effective experimental test, the test detection is rapid, and the cost is low; through multiple detection of the deformation detection mechanism and the micro-elastic detection mechanism, the uniformity of performance parameters of the standard sample for detecting the impact toughness of the cement-based material is ensured, and the detection precision is high.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is a schematic structural diagram of a micro-bullet detecting mechanism according to the present invention;
reference numbers in the figures: 1-supporting vertical frame, 2-guide rail, 3-sliding seat, 4-driver, 5-detection force application seat, 6-detection rod, 7-connecting support rod, 8-buffer protection pad, 9-level detector, 10-distance measurement laser ruler, 11-micro-elasticity detection mechanism, 12-mounting support, 13-connecting sleeve, 14-connecting rod, 15-spring, 16-micro-elasticity detector, 17-clamping seat, 18-clamping support arm, 19-locking rod, 20-laser level ruler, 21-pin insertion hole, 22-pressure sensor, 23-auxiliary pedestal, 24-walking wheel, 25-shock absorber and 26-control device.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description is made with reference to the accompanying drawings.
The experimental device suitable for detecting the elasticity and toughness of the cement-based material as shown in fig. 1-3 comprises a support stand 1, drivers 4, a detection force application seat 5, a deformation detection mechanism and a micro-elasticity detection mechanism 11, wherein the support stand 1 is arranged in a frame structure, at least three guide rails 2 are arranged at the top of the support stand 1 along the Y-axis direction, at least three drivers 4 are arranged on each guide rail 2, the lower ends of the drivers 4 are respectively provided with the detection force application seat 5, the micro-elasticity detection mechanism 11 is arranged on each detection force application seat 5, at least three groups of deformation detection mechanisms are symmetrically arranged at the middle lower part of the support stand 1 along the Y-axis direction, clamping devices are symmetrically arranged at the lower parts of two side edges of the support stand 1 along the Y-axis direction, and the drivers 4, the deformation detection mechanism and the micro-elasticity detection mechanism 11 are in signal connection with a control device 26.
The detection force application seat 5 is arranged to be of a T-shaped structure, and two micro-bullet detection mechanisms 11 are symmetrically arranged on the detection force application seat 5 along the X-axis direction.
Deformation detection mechanism include measuring bar 6, connecting branch 7, buffer protection pad 8, level detector 9, measuring bar 6 is provided with the jack through connecting branch 7 joint support grudging post 1 on measuring bar 6, connecting branch 7 sets up and is "T" font structure, be provided with the inserted tip with the jack adaptation on it, the bottom of measuring bar 6 sets up level detector 9 the bottom of level detector 9 sets up buffer protection pad 8, is furnished with on measuring bar 6 and is fit for miniature range finding laser chi 10.
Clamping device include grip slipper 17, centre gripping support arm 18, check lock lever 19, grip slipper 17 sets up on supporting grudging post 1, its with support grudging post 1 sliding fit, along Z axle direction reciprocating motion on supporting grudging post 1, centre gripping support arm 18 sets up in the free end of sliding seat 3 through check lock lever 19, check lock lever 19 and grip slipper 17 screw-thread fit are connected, grip support arm 18 is the centre gripping mouth of U font with the work end combination of grip slipper 17 the free end of centre gripping support arm 18 is provided with bullet detection mechanism 11 a little.
The clamping device is provided with a laser horizontal ruler 20, and the laser horizontal ruler 20 is arranged on the clamping seat 17 below the clamping opening.
The clamping seat 17 is arranged on the supporting vertical frame 1 through pin insertion, and the supporting vertical frame 1 is provided with a plurality of pin insertion holes 21 along the Z-axis direction.
The micro-bullet detector 16 is a horizontal detector 9, and a micro distance measuring laser ruler 10 is matched on the mounting support 12.
A pressure sensor 22 is arranged at the center of the lower surface of each detection force application seat 5.
The lower part on the both sides limit of support grudging post 1 be provided with supplementary pedestal 23 along Y axle direction symmetry, the distance of the bottom of supplementary pedestal 23 and ground is not less than 5cm, and supplementary pedestal 23 is in clamping device below, supplementary pedestal 23 sets up and is "L" shape structure.
Four corners of the supporting vertical frame 1 are respectively provided with a walking wheel 24, and each walking wheel 24 is respectively provided with a shock absorber 25.
The control device 26 is a single chip microcomputer or a PLC programmable logic controller with a display function.
The driver 4 is a hydraulic cylinder or an air cylinder, the driver 4 is connected with the guide rail 2 through the sliding seat 3, and the driver reciprocates on the guide rail 2 along the Y-axis direction.
The buffer protection pad 8 is a rubber pad.
The sliding seat 3 is connected with a hydraulic cylinder or an air cylinder, and the hydraulic cylinder or the air cylinder drives the sliding seat 3 to move.
The first embodiment is as follows:
before a mechanical property detection experiment of a cement product is carried out, the cement product is made into a rectangular cement board in advance; horizontally placing the cement product on the ground or an auxiliary pedestal 23, moving the support vertical frame 1 to the position above the cement product through the travelling wheels 24, covering the support vertical frame 1 on the cement product, pushing the sliding seats 3 to adjust the positions of the drivers 4 on the rails, and uniformly distributing the drivers 4 on the rails, thereby ensuring that the detection force application seats 5 on all the drivers 4 uniformly fall on the cement product when pressed down; then, starting the driver 4 to push each detection force application seat 5 downwards to be pressed on the cement product, and simultaneously loosening the locking devices on the horizontal detector 9 and the micro-elastic detection mechanism 11 to enable the horizontal detector 9 and the micro-elastic detection mechanism 11 to be in a free-falling state and to be pressed on the cement product; in the pressing process, the pressure of the driver 4 is continuously increased, the data of the level detector 9, the micro-elastic detection mechanism 11, the micro distance measurement laser ruler 10 and the laser level ruler 20 are recorded, and finally the elastic toughness performance data of the cement product can be obtained by analyzing the data.
Example two:
horizontally placing the cement products on the U-shaped clamping ports of the clamping seat 17 and the clamping support arm 18 for fixing, pushing the sliding seat 3 to adjust the positions of the drivers 4 on each track, so that the drivers 4 are uniformly distributed on the tracks, and further ensuring that the detection force application seats 5 on all the drivers 4 uniformly fall on the cement products when being pressed down; then, starting the driver 4 to push each detection force application seat 5 downwards to press on the cement product, and simultaneously loosening the locking devices on the horizontal detector 9 and the micro-spring detection mechanism 11 to enable the horizontal detector 9 and the micro-spring detection mechanism 11 to be in a free falling state and to press on the cement product; in the process of pressing down, the pressure of the driver 4 is continuously increased, and the data of the level detector 9, the micro-elastic detection mechanism 11, the micro distance measuring laser ruler 10 and the laser level ruler 20 are recorded; finally, the elastic toughness performance data of the cement product can be obtained by analyzing the data.
Example three:
horizontally placing the cement product on the ground, an auxiliary pedestal 23 or a clamping opening of a clamping device, fixing a clamping seat 17 and a U-shaped clamping opening of a clamping support arm 18, pushing a sliding seat 3 to adjust the positions of drivers 4 on each track, and enabling the drivers 4 to be uniformly distributed on the tracks, thereby ensuring that the detection force application seats 5 on all the drivers 4 are uniformly dropped on the cement product when being pressed downwards; then, adjusting and improving the running speed of each driver 4, starting the drivers 4 to rapidly push each detection force application seat 5 downwards to impact the primary cement product, and recording data on a horizontal detector 9, a micro-elastic detection mechanism 11, a micro distance measurement laser ruler 10 and a laser horizontal ruler 20; finally, the elastic toughness performance data of the cement product can be obtained by analyzing the data.
Claims (10)
1. The utility model provides an experimental apparatus suitable for cement-based material elasticity toughness can detect which characterized in that: comprises a supporting vertical frame (1), a driver (4), a detection force application seat (5), a deformation detection mechanism and a micro-bullet detection mechanism (11), wherein the supporting vertical frame (1) is arranged in a frame structure, at least three guide rails (2) are arranged on the top of the supporting vertical frame (1) along the Y-axis direction, at least three drivers (4) are arranged on each guide rail (2), the lower ends of the drivers (4) are respectively provided with a detection force application seat (5), each detection force application seat (5) is provided with a micro-bullet detection mechanism (11), at least three groups of deformation detection mechanisms are symmetrically arranged at the middle lower part of the supporting vertical frame (1) along the Y-axis direction, the lower parts of the two side edges of the supporting vertical frame (1) are symmetrically provided with clamping devices along the Y-axis direction, the driver (4), the deformation detection mechanism and the micro-bullet detection mechanism (11) are in signal connection with the control device (26).
2. The experimental device suitable for detecting the elastic toughness property of the cement-based material according to claim 1, wherein: the force application detection seat (5) is arranged to be of a T-shaped structure, and two micro-bullet detection mechanisms (11) are symmetrically arranged on the force application detection seat (5) along the X-axis direction.
3. The experimental device suitable for detecting the elastic toughness property of the cement-based material according to claim 1, wherein: deformation detection mechanism include measuring pole (6), connecting branch (7), buffering protection pad (8), horizontal detector (9), measuring pole (6) are provided with the jack through connecting branch (7) joint support grudging post (1) on measuring pole (6), connecting branch (7) set up and are "T" font structure, be provided with the tip of inserting with the jack adaptation on it, the bottom of measuring pole (6) sets up horizontal detector (9) the bottom of horizontal detector (9) sets up buffering protection pad (8), is furnished with miniature range finding laser chi (10) on measuring pole (6).
4. The experimental device suitable for detecting the elastic toughness property of the cement-based material according to claim 1, wherein: micro-bomb detection mechanism (11) including erection support (12), adapter sleeve (13), connecting rod (14), spring (15), micro-bomb detector (16) and buffer pad (8), erection support (12) set up on detecting application of force seat (5) along X axial direction symmetry, erection support (12) are gone up and are set up connecting rod (14) through adapter sleeve (13), adapter sleeve (13) and connecting rod (14) sliding fit, spring (15) set up in adapter sleeve (13), its jacking connecting rod (14) that makes progress, the bottom of connecting rod (14) sets up micro-bomb detector (16) the bottom of micro-bomb detector (16) sets up buffer pad (8).
5. The experimental device suitable for detecting the elastic toughness property of the cement-based material according to claim 1, wherein: clamping device include grip slipper (17), centre gripping support arm (18), check lock (19), grip slipper (17) set up on supporting grudging post (1), its with support grudging post (1) sliding fit, along Z axle direction reciprocating motion on supporting grudging post (1), centre gripping support arm (18) set up in the free end of sliding seat (3) through check lock (19), check lock (19) and grip slipper (17) screw-thread fit are connected, centre gripping support arm (18) are the centre gripping mouth of U font with the work end combination of grip slipper (17) the free end of centre gripping support arm (18) is provided with bullet detection mechanism (11) a little.
6. The experimental device suitable for detecting the elastic toughness property of the cement-based material according to claim 1 or 5, wherein: the clamping device is provided with a laser horizontal ruler (20), and the laser horizontal ruler (20) is arranged on a clamping seat (17) below the clamping opening.
7. The experimental device suitable for detecting the elastic toughness property of the cement-based material according to claim 5, wherein: the clamping seat (17) is arranged on the supporting vertical frame (1) through pin insertion, and the supporting vertical frame (1) is provided with a plurality of pin insertion holes (21) along the Z-axis direction.
8. The experimental device suitable for detecting the elastic toughness property of the cement-based material according to claim 4, wherein: the micro-bullet detector (16) is a horizontal detector (9), and a miniature distance measuring laser ruler (10) is matched on the mounting support (12).
9. The experimental device suitable for detecting the elastic toughness property of the cement-based material according to claim 1, wherein: and a pressure sensor (22) is arranged at the center of the lower surface of each detection force application seat (5).
10. The experimental device suitable for detecting the elastic toughness property of the cement-based material according to claim 1, wherein: the lower part on the both sides limit of support grudging post (1) be provided with auxiliary pedestal (23) along Y axle direction symmetry, the bottom of auxiliary pedestal (23) is not less than 5cm with the distance on ground, and auxiliary pedestal (23) are in clamping device below, auxiliary pedestal (23) set up and are "L" shape structure.
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