CN110658089B - Full-automatic crisp point appearance - Google Patents
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- CN110658089B CN110658089B CN201911042101.4A CN201911042101A CN110658089B CN 110658089 B CN110658089 B CN 110658089B CN 201911042101 A CN201911042101 A CN 201911042101A CN 110658089 B CN110658089 B CN 110658089B
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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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/38—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by electromagnetic means
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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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- 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
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/066—Special adaptations of indicating or recording means with electrical indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/005—Electromagnetic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0617—Electrical or magnetic indicating, recording or sensing means
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Abstract
The invention relates to the technical field of asphalt brittle point test related equipment, and discloses a full-automatic brittle point instrument of the full-automatic brittle point instrument, which comprises a shell and a computer, wherein the computer is arranged on the shell, a cold chamber shell is fixedly arranged on the inner wall of the shell, a cold chamber liner is arranged on the inner side of the cold chamber shell, a positioning clamp seat and a temperature control mechanism are fixedly arranged on the inner side wall of the cold chamber liner, an observation window and a propelling pipeline are arranged between the cold chamber shell and the cold chamber liner, a bending mechanism is fixedly arranged on the side wall of the cold chamber shell through a hexagon head bolt, the bending mechanism penetrates through the side walls of the cold chamber shell and the cold chamber liner and extends to the inner cavity of the cold chamber liner to be connected with the positioning clamp seat, an electronic detection mechanism is fixedly arranged on the positioning clamp seat, and the electronic detection mechanism carries out electron beam detection on a sample wafer fixed on the positioning clamp seat. This full-automatic crisp point appearance has realized the automation that the pitch sample detected, and great improvement pitch sample's the accurate nature of detection reduces relevant operating personnel's intensity of labour simultaneously.
Description
Technical Field
The invention relates to the technical field of asphalt crisp point test related equipment, in particular to a full-automatic crisp point instrument.
Background
JTG E20/T0613-1993 asphalt brittle point test (Frass method) is used for measuring the Frass brittle points of various asphalt materials, a steel sheet coated with asphalt is bent at a constant cooling rate in a timing mode, when cracks are observed in a bent thin layer of the steel sheet, the temperature is locked to be the brittle point, and the Frass test is the only standard of the current brittle point, mainly depends on manual operation, is relatively original, is quite complex and tedious, and has the main defects of 3:
(1) the temperature is controlled to be reduced by 1 ℃ for min at a constant speed by adding dry ice (solid carbon dioxide), which is extremely difficult to achieve even an operator with abundant practical experience;
(2) manually shaking the crank every minute, shortening the force strength, the shaking speed and the sample bending clamp jaw by 3.5mm, wherein samples are difficult to be the same every time, and the deviation is large;
(3) when the bending device is manually rotated, whether the sample film cracks or the breaking sound of the auditory film is observed; the temperature of the thermometer needs to be observed again, so that the operator is very labor-intensive and laborious, but the visual, auditory and reaction senses of a human body always deviate from the actual standard requirements of the brittle point in the same asphalt sample material, the brittle point results obtained through multiple tests are different, and the difference is large, so in the Frass test, the average value of 3 measuring instrument values with the error within the range of 3 ℃ is taken as the brittle point of the test, and the brittle point is called as the permissible error brittle point.
Therefore, the inventor designs a full-automatic crisp point instrument, and an electronic detection system is used for monitoring the crisp points of the asphalt in real time to reduce manual deviation caused by manual operation.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a full-automatic crisp point instrument, which solves the problem that experimental data are influenced by large deviation in manual operation of an asphalt crisp point test.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a full-automatic crisp some appearance, includes casing and computer, and the computer is installed on the casing, the inner wall fixed mounting of casing has cold chamber shell, and cold chamber inner bag is installed to the inboard of cold chamber shell, and the inside wall fixed mounting of cold chamber inner bag has location pincers seat and temperature-controlling mechanism, installs observation window and propulsion way pipe between cold chamber shell and the cold chamber inner bag, and the lateral wall of cold chamber shell has bending mechanism through hexagon head bolt fixed mounting, and bending mechanism runs through the lateral wall of cold chamber shell and cold chamber inner bag and extends to the inner chamber of cold chamber inner bag and be connected with location pincers seat, and fixed mounting has electronic detection mechanism on the location pincers seat, and electronic detection mechanism carries out the electron beam detection of implementing to the sample piece of fixing on the location pincers seat, and the inside wall fixed mounting of cold chamber inner bag has temperature sensor, and temperature-controlling mechanism is located one side of location pincers seat.
The bending mechanism comprises a machine frame, a permanent magnet motor, a propelling screw rod, a sliding table leaning block, a limiting seat plate, a propelling slide block, a limiting plate, a push rod and a deep groove ball bearing, wherein the machine frame is fixedly arranged on the side wall of a cold chamber shell through a hexagon head bolt, the permanent magnet motor is fixedly arranged on the side wall of the machine frame, an output shaft of the permanent magnet motor is fixedly connected with the propelling screw rod through a coupler, the propelling slide block is arranged on the propelling screw rod in a threaded manner, the sliding table leaning block is fixedly arranged at the bottom of the inner side of the machine frame, the side plane of the propelling slide block is contacted with the surface of the sliding table leaning block, the limiting seat plate is fixedly arranged at the top of the sliding table leaning block, the limiting plate is fixedly arranged between the limiting seat plate and the propelling slide block, one end of the push rod is movably inserted into the side face of the machine frame and extends to the inner side of the machine frame to be connected with the deep groove ball bearing, the outer ring of the deep groove ball bearing is contacted with the inclined face of the propelling slide block, the other end of the push rod penetrates through the cold chamber shell, The push pipe is used for protecting the push rod in a telescopic manner.
The positioning clamp seat comprises a connecting fixed block, a clamp seat floor, a clamp seat connecting backup plate, a sample clamp sliding block, a sample clamp floor, a sample clamp front backup plate, a sample clamp fixed block, two sample clamp sliding rods and a limiting pile, wherein the connecting fixed block is fixedly arranged on the inner side wall of the cold chamber liner, the clamp seat floor is fixedly arranged at the bottom of the connecting fixed block, the clamp seat connecting backup plate is fixedly arranged on the surface of the clamp seat floor, one end of a push rod extending to the cold chamber liner penetrates through the connecting fixed block and the clamp seat connecting backup plate and is fixedly connected with the sample clamp sliding block, the sample clamp floor is fixedly arranged on the surface of the clamp seat floor, the sample clamp front backup plate is fixedly arranged on the side surface of the sample clamp floor, the sample clamp fixed block is fixedly arranged in a dovetail groove of the sample clamp front backup plate, one ends of the two sample clamp sliding rods are symmetrically arranged on the side surface of the sample clamp front backup plate, and the other ends of the two sample clamp sliding rods penetrate through the sample clamp fixed block and the sample clamp sliding block and are contacted with the side surface of the clamp seat connecting backup plate, spacing stake fixed mounting is in the surface on appearance pincers floor, and spacing stake is located between two appearance pincers slide bars.
The electron detection mechanism comprises an electron gun anode front guard plate, an electron gun anode rear guard plate, an electron gun frame and an electron gun discharge anode, the electron gun frame is fixedly installed on a clamp seat connecting backup plate, the electron gun anode front guard plate and the electron gun anode rear guard plate are connected through a connecting screw, the electron gun discharge anode is installed between the electron gun anode front guard plate and the electron gun anode rear guard plate, the electron gun anode front guard plate and the electron gun anode rear guard plate are installed on the clamp seat connecting backup plate through an electron gun rotating shaft screw, the electron gun frame is connected with the electron gun anode front guard plate and the electron gun anode rear guard plate through screws, and the bottom of the electron gun anode front guard plate and the bottom of the electron gun anode rear guard plate are arc-shaped and are matched with the electron gun discharge anode.
The temperature control mechanism comprises an air cooler shell, a cold chamber fan and a heating pipe, the air cooler shell is fixedly installed in an inner cavity of the cold chamber liner, the cold chamber fan is fixedly installed on the inner side wall of the air cooler shell, and the heating pipe is installed below the inner side of the air cooler shell.
Preferably, the top of the cold chamber shell is provided with a heat insulation upper cover, and the heat insulation upper cover corresponds to the switch cover on the top of the shell.
Preferably, the permanent magnet motor is a gear motor with power of 18W, in particular to a gear motor with the rotating speed of 60 r/min.
Preferably, a movable distance is reserved between the end of the limiting seat plate and the inner side wall of the machine frame, and the pushing length of the push rod on the machine frame is equal to that of the sample clamp sliding block on the sample clamp sliding rod.
Preferably, the electron gun anode front guard plate, the electron gun anode rear guard plate and the electron gun discharge anode form a high-voltage electron gun.
Preferably, the heating pipe is located below the cooling chamber fan, and a heating end of the heating pipe penetrates through the inner container of the cooling chamber and the inner side wall of the cooling chamber shell and extends to the outer side.
Preferably, the bottom of electron gun positive pole backplate and electron gun positive pole backplate has all been seted up the indent arc wall, and the electron gun positive pole inlays between electron gun positive pole backplate and electron gun positive pole backplate, and the bottom arc of electron gun positive pole discharges the end and is located the top of location pincers seat.
Preferably, the observation window consists of three layers of vacuum glass and a viewing frame, and LED lamp beads are arranged on the inner sides of the viewing frame and the inner container of the cold chamber.
Preferably, the computer is electrically connected with the bending mechanism, the electronic detection mechanism and the temperature control mechanism, and the computer can control the on-off and operation states of the bending mechanism, the electronic detection mechanism and the temperature control mechanism.
(III) advantageous effects
The invention provides a full-automatic crisp point instrument. The method has the following beneficial effects:
(1) this full-automatic crisp point appearance mutually supports through setting up cold chamber shell, cold chamber inner bag and observation window, and the temperature and the ambient temperature of instrument inner chamber carry out effectual isolation, reduce the influence that ambient temperature produced instrument test data, and the observation window is convenient for relevant operating personnel to the real-time observation of instrument simultaneously, increases the practicality of equipment use.
(2) This full-automatic crisp point appearance mutually supports through setting up crooked mechanism and location pincers seat, and location pincers seat carries out effectual location to the sample wafer, and crooked mechanism carries out the test of buckling that circulates to the sample wafer of location on the pincers seat of location, has changed traditional manually operation's mode, avoids the artifical crooked sample to press from both sides the operating error who produces, improves test data's accuracy.
(3) This full-automatic crisp point appearance carries out the at the uniform velocity regulation and control and the detection of implementing through setting up temperature control mechanism and temperature sensor to the temperature in the cold chamber inner bag, has changed the mode that the tradition added the dry ice cooling, and the relevant operating personnel of being convenient for reduces test data's deviation to test sample ambient temperature's regulation and control.
(4) This full-automatic crisp point appearance, through setting up electronic detection mechanism and location pincers seat and mutually supporting, location pincers seat promotes under the drive of buckling at the circulation of bending mechanism, buckles experimently to the sample piece, make electronic detection mechanism's electron gun discharge anode discharge and discharge high-voltage electron beam to the pitch sample piece on sample piece surface in real time, in order to ensure the accurate pitch sample brittle failure temperature point of catching of instrument, traditional manual observation's detection mode has been changed, very big improvement the precision that the instrument detected pitch sample data.
(5) This full-automatic crisp point appearance through setting up bending mechanism, location pincers seat, electronic detection mechanism, temperature control mechanism, temperature sensor and computer and mutually supporting, when equipment uses, each mechanism collaborative operation carries out automatic accurate detection to the pitch sample, has changed the experimental mode of traditional manual operation, has realized the automation that the pitch sample detected, and the accurate nature of detection of great improvement pitch sample reduces relevant operating personnel's intensity of labour simultaneously.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic axial view of the housing of the cold box of the present invention;
FIG. 3 is a schematic axial view of the inner container of the cold chamber of the present invention;
FIG. 4 is a schematic view of the connection structure of the bending mechanism, the positioning clamp base and the electronic detection mechanism according to the present invention;
FIG. 5 is a schematic view of the bending mechanism of the present invention;
FIG. 6 is a schematic view of a connection structure of the positioning clamp base and the push rod according to the present invention;
FIG. 7 is a schematic axial view of a temperature control mechanism according to the present invention;
FIG. 8 is a rear isometric view of the cold box housing of the present invention;
FIG. 9 is a schematic view of a motor detection mechanism according to the present invention;
FIG. 10 is a schematic top view of a temperature control mechanism according to the present invention.
In the figure: the device comprises a shell 1, a computer 2, a cold room shell 3, a cold room inner container 4, an observation window 5, a bending mechanism 6, a machine frame 61, a permanent magnet motor 62, a propelling screw rod 63, a sliding table leaning block 64, a limiting seat plate 65, a propelling slide block 66, a limiting plate 67, a push rod 68, a deep groove ball bearing 69, a positioning clamp seat 7, a connecting fixed block 71, a clamp seat 72, a clamp seat floor 73, a clamp seat connecting backup plate 74, a clamp slide block 74, a clamp floor 75, a clamp front backup plate 76, a clamp fixed block 77, a clamp slide rod 78, a limiting pile 79, an electronic detection mechanism 8, an electronic gun anode front guard plate 81, an electronic gun anode rear guard plate 82, an electronic gun frame 83, an electronic gun discharge anode 84, a temperature control mechanism 9, an air cooler shell 91, a cold room fan 92, a heating pipe 93 and a temperature sensor 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 10, the present invention provides a technical solution: full-automatic crisp point appearanceThe device comprises a shell 1 and a computer 2, wherein the computer 2 is arranged on the shell 1, a cold chamber shell 3 is fixedly arranged on the inner wall of the shell 1, a cold chamber liner 4 is arranged on the inner side of the cold chamber shell 3, the cold chamber liner 4 and the cold chamber shell 3 are used for preserving heat of an equipment inner cavity and reducing the influence of the external environment temperature on the temperature of the equipment inner cavity, a positioning clamp seat 7 and a temperature control mechanism 9 are fixedly arranged on the inner side wall of the cold chamber liner 4, a sample wafer is clamped and positioned by the positioning clamp seat 7, an observation window 5 and a propelling pipeline are arranged between the cold chamber shell 3 and the cold chamber liner 4, the observation window 5 consists of three layers of vacuum glass and a view frame, LED lamp beads are arranged on the inner sides of the view frame and the cold chamber liner 4, a heat insulation upper cover is arranged on the top of the cold chamber shell 3 so that related operators can conveniently place the sample wafer in the inner cavity of the cold chamber liner 4 for clamping and positioning, and a bending mechanism 6 is fixedly arranged on the side wall of the cold chamber shell 3 through a hexagon head bolt, the bending mechanism 6 penetrates through the side walls of the cold chamber shell 3 and the cold chamber liner 4 and extends to the inner cavity of the cold chamber liner 4 to be connected with the positioning clamp seat 7, the positioning clamp seat 7 is fixedly provided with the electronic detection mechanism 8, the electronic detection mechanism 8 detects an electron beam applied to a sample wafer fixed on the positioning clamp seat 7, the inner side wall of the cold chamber liner 4 is fixedly provided with the temperature sensor 10, the temperature sensor 10 monitors the temperature of the inner cavity of the cold chamber liner 4 in real time and transmits the temperature to the computer 2, the output port of the computer 2 is connected with the printer, so that related operators can monitor and test the equipment conveniently, and the temperature sensor 10 adopts the mode that
The temperature control mechanism 9 is positioned at one side of the positioning clamp seat 7.
The bending mechanism 6 comprises a machine frame 61, a permanent magnet motor 62, a propelling screw rod 63, a sliding table leaning block 64, a limiting seat plate 65, a propelling slide block 66, a limiting plate 67, a push rod 68 and a deep groove ball bearing 69, wherein the machine frame 61 is fixedly arranged on the side wall of the cold chamber shell 3 through a hexagon bolt, the permanent magnet motor 62 is fixedly arranged on the side wall of the machine frame 62, the permanent magnet motor 61 adopts a gear motor with the power of 18W and the rotating speed of 60r/min, an output shaft of the permanent magnet motor 62 is fixedly connected with the propelling screw rod 63 through a coupler, the propelling slide block 66 is arranged on the propelling screw rod 63 in a threaded manner, the propelling slide block 66 is propelled and contracted under the threaded engagement on the propelling screw rod 63, the sliding table leaning block 64 is fixedly arranged at the bottom of the inner side of the machine frame 61, the side plane of the propelling slide block 66 is in contact with the surface of the sliding table leaning block 64, the limiting seat plate 65 is fixedly arranged at the top of the sliding table leaning block 64, the limiting plate 67 is fixedly arranged between the limiting seat plate 65 and the propelling slide block 66, a movable distance is reserved between the end of the limiting seat plate 65 and the inner side wall of the machine frame 61, so that the limiting seat plate 65 limits the pushing slide block 66 through a limiting plate 67, instability of matching between mechanisms caused by transitional displacement of the pushing slide block 66 is avoided, one end of the push rod 68 is movably inserted into the side face of the machine frame 61 and extends to the inner side of the machine frame 61 to be connected with the deep groove ball bearing 69, the outer ring of the deep groove ball bearing 69 is in contact with the inclined face of the pushing slide block 66, the pushing slide block 66 is in contact with and pushes the outer bearing ring of the deep groove ball bearing 69 when being pushed or contracted, the outer ring of the deep groove ball bearing 69 rotates, pushing friction force between the pushing slide block 66 and the push rod 68 is greatly reduced, stability of mutual matching between the mechanisms is guaranteed, when the device is used, return elastic force of a sample piece when being bent is transmitted to the push rod 68 through the sample clamp slide block 74, and the outer bearing ring surface of the deep groove ball bearing 69 is guaranteed to be in contact with the inclined face of the pushing slide block 66 constantly, the other end of the push rod 68 penetrates through the side walls of the cold chamber shell 3, the push channel pipe and the cold chamber liner 4 and extends to the inner cavity of the cold chamber liner 4, the push channel pipe protects the push rod 68 in a telescopic manner, and the push length of the push rod 68 on the frame 61 is equal to the push length of the sample clamp sliding block 74 on the sample clamp sliding rod 78.
The positioning clamp seat 7 comprises a connecting fixing block 71, a clamp seat floor 72, a clamp seat connecting backup plate 73, a sample clamp slider 74, a sample clamp floor 75, a sample clamp front backup plate 76, a sample clamp fixing block 77, two sample clamp slide bars 78 and a limiting pile 79, wherein the connecting fixing block 71 is fixedly arranged on the inner side wall of the cold chamber liner 4, the clamp seat floor 72 is fixedly arranged at the bottom of the connecting fixing block 71, the clamp seat connecting backup plate 73 is fixedly arranged on the surface of the clamp seat floor 72, one end of a push rod 68 extending to the cold chamber liner 4 penetrates through the connecting fixing block 71 and the clamp seat connecting backup plate 73 and is fixedly connected with the sample clamp slider 74, the sample clamp floor 75 is fixedly arranged on the surface of the clamp seat floor 72, the sample clamp front backup plate 76 is fixedly arranged on the side surface of the sample clamp floor 75, the sample clamp fixing block 77 is fixedly arranged in a dovetail groove of the sample clamp front backup plate 76, one end of the two sample clamp slide bars 78 is symmetrically arranged on the side surface of the sample clamp front backup plate 76, the other ends of the two sample clamp sliding rods 78 penetrate through the sample clamp fixing block 77 and the sample clamp sliding block 74 and are in contact with the side face of the clamp seat connecting backup plate 73, the sample clamp sliding rods 78 are used for positioning the sample clamp sliding block 74, so that the sample clamp sliding block 74 linearly moves on the sample clamp floor 75 when pushed by the push rod 68, the bottoms of the sample clamp sliding block 74 and the sample clamp fixing block 77 are both positioned on the surface of the sample clamp floor 75, the opposite surfaces of the sample clamp sliding block 74 and the sample clamp fixing block 77 are both provided with embedded clamping grooves, so that a sample sheet is preliminarily positioned through the embedded clamping grooves on the sample clamp sliding block 74 and the sample clamp fixing block 77, when the sample clamp sliding block 74 is pushed, the sample sheet is positioned, extruded and arched, so that the matching stability between mechanisms is ensured, the limiting pile 79 is fixedly installed on the surface of the sample clamp floor 75, the limiting pile 79 is positioned between the two sample clamp sliding rods 78, and the limiting pile 79 is used for limiting the sample clamp sliding block 74, avoid the condition that appearance clamp slider 74 transition displacement caused the damage of sample piece transition buckle hunch-up, appearance clamp fixed block 77 sets up with appearance clamp slider 74 relatively, constitutes the clamp opening between appearance clamp fixed block 77 and the appearance clamp slider 74 and carries out the centre gripping location to the sample piece.
The electron detection mechanism 8 comprises an electron gun anode front guard plate 81, an electron gun anode rear guard plate 82, an electron gun frame 83 and an electron gun discharge anode 84, the electron gun frame 83 is fixedly arranged on the clamp seat connecting backup plate 73, the electron gun anode front guard plate 81 and the electron gun anode rear guard plate 82 are connected through a connecting screw, the electron gun discharge anode 84 is arranged between the electron gun anode front guard plate 81 and the electron gun anode rear guard plate 82, the electron gun anode front guard plate 81 and the electron gun anode rear guard plate 82 are arranged on the clamp seat connecting backup plate 73 through an electron gun rotating shaft screw, the electron gun frame 83 is connected with the electron gun anode front guard plate 81 and the electron gun anode rear guard plate 82 through screws, the bottoms of the electron gun anode front guard plate 81 and the electron gun anode rear guard plate 82 are both provided with an inner concave arc groove, the electron gun anode 84 is embedded between the electron gun anode front guard plate 81 and the electron gun anode rear guard plate 82, the arc-shaped discharge end of the bottom of the electron gun anode 84 is positioned above the positioning clamp seat 7, the bottoms of the electron gun anode front guard plate 81 and the electron gun anode rear guard plate 82 are arc-shaped and are matched with the electron gun discharge anode 84, the electron gun anode front guard plate 81, the electron gun anode rear guard plate 82 and the electron gun discharge anode 84 form a high-voltage electron gun, high-voltage electron beams discharged by the high-voltage electron gun repeatedly scan and detect flaws on bent sample pieces, when an asphalt sample reaches brittle fracture, the high-voltage electron beams penetrate through the fracture to form positive and negative electrodes on the sample pieces on the back of the asphalt sample to form current, and the computer 2 obtains electrical information, supplies power for processing, and prints and records the brittle point temperature transmitted by the temperature sensor 10.
The temperature control mechanism 9 comprises an air cooler shell 91, a cold chamber fan 92 and a heating pipe 93, the air cooler shell 91 is fixedly arranged in the inner cavity of the cold chamber liner 4, the cold chamber fan 92 is fixedly arranged on the inner side wall of the air cooler shell 91, a cold chamber sealing plate is arranged at the top of the air cooler shell 91, the heating pipe 93 is arranged below the inner side of the air cooler shell 91, the cold chamber fan 92 performs temperature reduction regulation and control on the inner cavity of the cold chamber liner 4, the heating pipe 93 performs temperature rise regulation and control on the inner cavity of the cold chamber liner 4 to ensure gradual and stable regulation and control on the temperature of the inner cavity of the cold chamber liner 4, the heating pipe 93 is located below the cold chamber fan 92, the heating end of the heating pipe 93 penetrates through the inner side wall of the cold chamber liner 4 and the inner side wall of the cold chamber shell 3 and extends to the outer side, the heating pipe 93 can be an electric heating pipe with the power of 300W, the surface heating temperature of the heating pipe 93 is 500 ℃, and the heating is carried out in a heat balance mode.
The computer 2 is electrically connected with the bending mechanism 6, the electronic detection mechanism 8 and the temperature control mechanism 9, and the computer 2 can control the on-off and operation states of the bending mechanism 6, the electronic detection mechanism 8 and the temperature control mechanism 9.
The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.
The working principle is as follows: when the device is used, a sample wafer coated with an asphalt sample is positioned between a sample clamp fixing block 77 and a sample clamp sliding block 74, the sample wafer is positioned, a heat insulation upper cover is covered, the temperature in a cold chamber inner container 4 is regulated through a temperature control mechanism 9 by a computer 2, bad temperature in the cold chamber inner container 4 is eliminated, the temperature is kept at 25 ℃ (3-5 min) and then an instant click test is carried out, a temperature sensor 10 carries out real-time monitoring and transmission on the temperature in the cold chamber inner container 4, the computer 2 starts a high-voltage electron gun and a bending mechanism 6, the bending mechanism 6 drives a propelling lead screw 63 to rotate through a coupler by a permanent magnet motor 62, the propelling lead screw 63 drives the propelling slide block 66 to carry out linear motion, the propelling slide block 66 pushes the sample clamp sliding block 74 through a push rod 68, the rotary motion is converted into linear motion, the action is repeated, periodic bending is carried out, the mechanical action is carried out, an electron gun discharge anode 84 on the high-voltage electron gun discharges high-voltage electron beams, when the bending mechanism 6 bends and arches every 12 seconds, the high-voltage electron gun discharges high-voltage electron beams (4000V, 0.25mA) to carry out scanning flaw detection on an asphalt sample frozen layer on a sample wafer, the scanning flaw detection is repeated when the asphalt sample bends every time, when the asphalt sample reaches brittle fracture, the electron beams penetrate through the fracture, the sample wafer on the back of the sample wafer forms a positive electrode and a negative electrode to form current, electric information is obtained from the computer 2, power supply processing is carried out, the brittle point temperature transmitted by the temperature sensor 10 is printed and recorded, the temperature in the cold chamber inner container 4 is reduced by 1 ℃/min at a constant speed, and the bending mechanism 6 starts to bend when the initial temperature (10 ℃ before the preset brittle point) is reached; the test piece is bent once in one minute, bent for 12 seconds, flattened for 12 seconds, and bent for 36 seconds, the next minute is bent, the repeated action is periodic, the bending speed is high, the opening of a clamp for bending the sample for 12 seconds is shortened by 3.5mm (the arc chord on the bending of the sample piece is shortened by 3.5mm), and when the sample piece is bent and arched for 12 seconds, the high-voltage electron gun discharges and detects the asphalt film on the surface of the sample piece, once the asphalt film cracks along with the constant-speed decreasing of the bath temperature, the electronic scanning detects the flaw and immediately outputs information, an instrument printer immediately prints a brittle point result, the whole test is completely automatic, the operation does not need the intervention of an operator, the execution precision and the test requirements are greatly improved, the T0613-1993 asphalt brittle point rule is completely met, and the sample piece in the inner cavity of the cold chamber liner 4 can be observed in real time through the observation window 5 in the test process.
The control mode of the invention is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of a person skilled in the art, the supply of the power supply also belongs to the common knowledge in the field, and the invention is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a full-automatic crisp some appearance, includes casing and computer, and the computer mounting is on the casing, its characterized in that: a cold chamber shell is fixedly arranged on the inner wall of the shell, a cold chamber liner is arranged on the inner side of the cold chamber shell, a positioning clamp seat and a temperature control mechanism are fixedly arranged on the inner side wall of the cold chamber liner, an observation window and a propelling pipeline are arranged between the cold chamber shell and the cold chamber liner, a bending mechanism is fixedly arranged on the side wall of the cold chamber shell through a hexagon bolt, the bending mechanism penetrates through the side walls of the cold chamber shell and the cold chamber liner and extends to the inner cavity of the cold chamber liner to be connected with the positioning clamp seat, an electronic detection mechanism is fixedly arranged on the positioning clamp seat, the electronic detection mechanism carries out electron beam detection on a sample wafer fixed on the positioning clamp seat, a temperature sensor is fixedly arranged on the inner side wall of the cold chamber liner, and the temperature control mechanism is positioned on one side of the positioning clamp seat;
the bending mechanism comprises a machine frame, a permanent magnet motor, a propelling screw rod, a sliding table leaning block, a limiting seat plate, a propelling slide block, a limiting plate, a push rod and a deep groove ball bearing, wherein the machine frame is fixedly arranged on the side wall of a cold chamber shell through a hexagon head bolt, the permanent magnet motor is fixedly arranged on the side wall of the machine frame, an output shaft of the permanent magnet motor is fixedly connected with the propelling screw rod through a coupler, the propelling slide block is arranged on the propelling screw rod in a threaded manner, the sliding table leaning block is fixedly arranged at the bottom of the inner side of the machine frame, the side plane of the propelling slide block is contacted with the surface of the sliding table leaning block, the limiting seat plate is fixedly arranged at the top of the sliding table leaning block, the limiting plate is fixedly arranged between the limiting seat plate and the propelling slide block, one end of the push rod is movably inserted into the side face of the machine frame and extends to the inner side of the machine frame to be connected with the deep groove ball bearing, the outer ring of the deep groove ball bearing is contacted with the inclined face of the propelling slide block, the other end of the push rod penetrates through the cold chamber shell, The push pipe is used for telescopic protection of the push rod;
the positioning clamp seat comprises a connecting fixed block, a clamp seat floor, a clamp seat connecting backup plate, a sample clamp sliding block, a sample clamp floor, a sample clamp front backup plate, a sample clamp fixed block, two sample clamp sliding rods and a limiting pile, wherein the connecting fixed block is fixedly arranged on the inner side wall of the cold chamber liner, the clamp seat floor is fixedly arranged at the bottom of the connecting fixed block, the clamp seat connecting backup plate is fixedly arranged on the surface of the clamp seat floor, one end of a push rod extending to the cold chamber liner penetrates through the connecting fixed block and the clamp seat connecting backup plate and is fixedly connected with the sample clamp sliding block, the sample clamp floor is fixedly arranged on the surface of the clamp seat floor, the sample clamp front backup plate is fixedly arranged on the side surface of the sample clamp floor, the sample clamp fixed block is fixedly arranged in a dovetail groove of the sample clamp front backup plate, one ends of the two sample clamp sliding rods are symmetrically arranged on the side surface of the sample clamp front backup plate, and the other ends of the two sample clamp sliding rods penetrate through the sample clamp fixed block and the sample clamp sliding block and are contacted with the side surface of the clamp seat connecting backup plate, the limiting pile is fixedly arranged on the surface of the sample clamp floor and is positioned between the two sample clamp sliding rods;
the electron detection mechanism comprises an electron gun anode front guard plate, an electron gun anode rear guard plate, an electron gun frame and an electron gun discharge anode, the electron gun frame is fixedly arranged on a clamp seat connecting backup plate, the electron gun anode front guard plate and the electron gun anode rear guard plate are connected through a connecting screw, the electron gun discharge anode is arranged between the electron gun anode front guard plate and the electron gun anode rear guard plate, the electron gun anode front guard plate and the electron gun anode rear guard plate are arranged on the clamp seat connecting backup plate through an electron gun rotating shaft screw, the electron gun frame is connected with the electron gun anode front guard plate and the electron gun anode rear guard plate through screws, and the bottoms of the electron gun anode front guard plate and the electron gun anode rear guard plate are arc-shaped and are matched with the electron gun discharge anode;
the temperature control mechanism comprises an air cooler shell, a cold chamber fan and a heating pipe, the air cooler shell is fixedly installed in an inner cavity of the cold chamber liner, the cold chamber fan is fixedly installed on the inner side wall of the air cooler shell, and the heating pipe is installed below the inner side of the air cooler shell.
2. The fully automatic crisp point instrument according to claim 1, wherein: the top of the cold chamber shell is provided with a heat insulation upper cover which corresponds to the switch cover on the top of the shell.
3. The fully automatic crisp point instrument according to claim 1, wherein: the permanent magnet motor is a gear motor with power of 18W, and specifically is a gear motor with the rotating speed of 60 r/min.
4. The fully automatic crisp point instrument according to claim 1, wherein: a movable distance is reserved between the end of the limiting seat plate and the inner side wall of the machine frame, and the pushing length of the push rod on the machine frame is equal to that of the sample clamp sliding block on the sample clamp sliding rod.
5. The fully automatic crisp point instrument according to claim 1, wherein: the electron gun anode front guard plate, the electron gun anode rear guard plate and the electron gun discharge anode form a high-voltage electron gun.
6. The fully automatic crisp point instrument according to claim 1, wherein: the heating pipe is positioned below the fan of the cold chamber, and the heating end of the heating pipe penetrates through the inner container of the cold chamber and the inner side wall of the shell of the cold chamber and extends to the outer side.
7. The fully automatic crisp point instrument according to claim 1, wherein: the electronic gun anode front guard plate and the electronic gun anode rear guard plate are respectively provided with an inwards concave arc-shaped groove at the bottom, the electronic gun anode is embedded between the electronic gun anode front guard plate and the electronic gun anode rear guard plate, and the bottom arc discharge end of the electronic gun anode is positioned above the positioning clamp seat.
8. The fully automatic crisp point instrument according to claim 1, wherein: the observation window is composed of three layers of vacuum glass and a viewing frame, and LED lamp beads are arranged on the inner sides of the viewing frame and the inner container of the cold chamber.
9. The fully automatic crisp point instrument according to claim 1, wherein: the computer is electrically connected with the bending mechanism, the electronic detection mechanism and the temperature control mechanism, and can control the on-off and running states of the bending mechanism, the electronic detection mechanism and the temperature control mechanism.
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| CN201911042101.4A CN110658089B (en) | 2019-10-30 | 2019-10-30 | Full-automatic crisp point appearance |
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| CN112798639B (en) * | 2021-02-23 | 2024-07-05 | 广州港湾工程质量检测有限公司 | Fllas brittle point instrument and test method thereof |
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