CN113607571A - Novel high-speed steel deflection detection equipment - Google Patents
Novel high-speed steel deflection detection equipment Download PDFInfo
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- CN113607571A CN113607571A CN202110910086.1A CN202110910086A CN113607571A CN 113607571 A CN113607571 A CN 113607571A CN 202110910086 A CN202110910086 A CN 202110910086A CN 113607571 A CN113607571 A CN 113607571A
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- 238000001514 detection method Methods 0.000 title claims abstract description 24
- 229910000997 High-speed steel Inorganic materials 0.000 title claims abstract description 23
- 238000001125 extrusion Methods 0.000 claims abstract description 16
- 239000000725 suspension Substances 0.000 claims abstract description 15
- 238000009826 distribution Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims description 73
- 238000004519 manufacturing process Methods 0.000 claims description 37
- 239000000843 powder Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 239000007938 effervescent tablet Substances 0.000 claims description 11
- 239000013305 flexible fiber Substances 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 10
- 230000009182 swimming Effects 0.000 claims description 9
- 238000005336 cracking Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 7
- 238000007667 floating Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 238000010191 image analysis Methods 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000007664 blowing Methods 0.000 description 3
- 239000006247 magnetic powder Substances 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
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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
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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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
- G01N3/04—Chucks
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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
- G01N3/068—Special adaptations of indicating or recording means with optical 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
- G01N2203/0003—Steady
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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
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0062—Crack or flaws
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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
- G01N2203/025—Geometry of the test
- G01N2203/0258—Non axial, i.e. the forces not being applied along an axis of symmetry of the specimen
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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
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
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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
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
- G01N2203/0411—Chucks, fixtures, jaws, holders or anvils using pneumatic or hydraulic pressure
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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
- G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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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
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
Abstract
The invention discloses a novel high-speed steel deflection detection device, belonging to the field of steel deflection detection, which is characterized in that a magnetic field is applied during detection to enable a plurality of trailing swim grains to be uniformly adsorbed on the lower surface of the middle part of a piece to be detected, when the limit value of theoretical prediction is approached, the extrusion force of a jack is increased through interval gradient, when the piece to be detected is cracked, the magnetic leakage phenomenon at the crack position has larger attraction to the trailing swim grains, so that the trailing swim grains are gathered at the crack position, at the moment, when the pressure value is reduced, the opening of the crack shrinks to extrude the trailing swim grains, the end parts of the trailing swim grains are cracked, the magnetic suspension overflows, part of the magnetic suspension moves downwards to the surface of the trailing swim grains, so that the surface of the trailing swim grains releases gas, the tail parts of the gathered plurality of trailing swim grains are blown with force to be different from the trailing swim grains at the non-cracked part, at the moment, according to the changed image information, the distribution range of the limit deflection value can be effectively reduced, and the deflection measurement precision is obviously improved.
Description
Technical Field
The invention relates to the field of steel deflection detection, in particular to novel high-speed steel deflection detection equipment.
Background
Deflection of an elongated object (e.g., a beam or column) refers to the amount of displacement of each point on its axis in the plane normal to the axis at that point during deformation.
The existing steel structure detection method adopts a weight method, supporting blocks are arranged at two ends of a piece to be detected, so that the middle of the piece to be detected is suspended, then a heavy object is continuously added on the upper surface of the piece to be detected until the piece to be detected deforms and cracks appear, so that a limit deflection value is measured, and the deflection of a cross beam is converted by the gravity of the heavy object and the deformation of the piece to be detected;
however, in the above process, when the to-be-measured piece begins to crack, the crack is small, the phenomenon is not obvious, and the crack is difficult to find in time, so that the obtained ultimate deflection value is large, and the accuracy and precision are poor.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a novel high-speed steel deflection detection device, which is characterized in that a magnetic field is applied during detection to enable a plurality of trailing swim grains to be uniformly adsorbed on the lower surface of the middle part of a piece to be detected, when the limit value of theoretical prediction is approached, the extrusion force of a jack is increased through interval gradient, and the reciprocating pressing operation is performed for a plurality of times, after the piece to be detected is cracked, the attraction force of a crack to the trailing swim grains due to magnetic leakage phenomenon is larger than that of a nearby uncracked part, so that the trailing swim grains are gathered at the crack, at the moment, when the pressure value is reduced, the opening of the crack is shrunk to extrude the trailing swim grains, the end parts of the tail parts are cracked, magnetic suspension overflows, part of the magnetic suspension moves downwards to the surfaces of the trailing swim grains, so that the surfaces of the trailing swim grains release gas, and blows the tail parts of the gathered plurality of the trailing swim grains to make the tail parts different from the uncracked trailing swim grains, at the moment, according to the changed image information, the distribution range of the limit deflection value can be effectively reduced, and the deflection measurement precision is obviously improved.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A novel high-speed steel deflection detection device comprises two bases, the upper ends of the bases are fixedly connected with side plates, the outer end of one of the side plates is provided with a control box, an I-shaped rod is connected between the two side plates, a jack is arranged at the lower end of the I-shaped rod, a pressure sensor is arranged at the lower end of the jack, a push plate is fixedly connected at the lower end of the high-definition camera, two telescopic clamping rods are connected between the two bases, the telescopic clamping rod comprises two hydraulic rods which are respectively connected with the base in a sliding way through an electric sliding table, one end of each of the two hydraulic rods, which is close to each other, is fixedly connected with two clamping ends which are matched with each other, a grain adding plate is fixedly connected between the middle parts of the two bases, add a plurality of high definition digtal cameras installed on the board upper end, hydraulic stem, jack, high definition digtal camera and pressure sensor all with control box signal connection.
Furthermore, the joint of the hydraulic rod and the clamping end is fixedly connected with a gasket, the diameter of the gasket is not less than 1.5 times of the diameter of the end of the hydraulic rod, and the gasket effectively improves the stability of connection between the hydraulic rod and the clamping end.
Furthermore, threaded connection has positioning bolt on the exposed core, positioning bolt is located the inside rubber slab that has inlayed the steel sheet of tip fixedly connected with in the exposed core, is convenient for vertically to the tip location of the piece that awaits measuring, and the stability of the measurement process of being convenient for goes on.
Further, add a board and include two connecting plates and fixed connection at the storage grain arc board at connecting plate middle part, it holds a groove to cut on the storage grain arc board, it has placed a plurality of tailing trip grains to hold a inslot.
Furthermore, it is a plurality of the high definition digtal camera's the end of making a video recording all carries out the slope design, and the end of making a video recording all faces and holds grain groove directly over, is convenient for when the amount of deflection is examined, and a plurality of high definition digtal cameras carry out diversified change image information collection to the piece under test middle part lower surface, make the deflection value accuracy that finally reachs higher.
Further, the tailing swimming particles comprise an air production web member, a magnetic lead ball fixedly connected to the upper end of the air production web member and flexible fiber whiskers fixedly connected to the lower end of the air production web member, magnetic suspension is filled in the magnetic lead ball and is a mixture of water and magnetic powder, so that the end of the tailing swimming particles has magnetism, and under the action of an externally applied magnetic field, the tailing swimming particles are distributed on the lower surface of a piece to be tested in a head-up mode, and when cracks are generated conveniently, the head of the tailing swimming particles at the cracks can be extruded and broken.
Furthermore, the gas production web member is of an elastic porous hollow structure, effervescent tablet particle fillers are filled in the gas production web member, the flexible fibers are made of flexible materials, after the trailing free particles are extruded and broken, the water in the gas production web member overflows and falls along the gas production web member, so that part of water can permeate into the gas production web member to generate gas, and the gas generates obvious blowing power on the tail part of the trailing free particles around the gas production web member when overflowing, so that the gas generates obvious swinging phenomenon.
Furthermore, effervescent tablet powder particles are adsorbed in the gas production web member and the pores through extrusion, gas is inflated into the gas production web member through one of the pores, and then the gas is pumped out, so that a certain adsorption force is generated on the external effervescent tablet powder particles, partial powder particles enter the gas production web member, and partial powder particles are directly embedded on the pores, so that the gas is generated when the powder particles are contacted with water more conveniently, the gas production speed is higher, the speed of observing the changed image information by the high-definition camera is further improved, and the accuracy is higher.
A novel high-speed steel deflection detection device comprises the following use method:
s1, respectively installing two end parts of the high-speed steel to be tested on the two telescopic clamping rods, fastening the two end parts through positioning bolts, and then adjusting the positions of the two telescopic clamping rods to enable the middle part of the part to be tested to be located right below the jack;
s2, applying a magnetic field right above the I-shaped rod to adsorb the trailing particles, so that the trailing particles move upwards and are uniformly adhered to the lower surface of the piece to be detected;
s3, controlling the jack to apply pressure to the piece to be detected through the control box, and enabling the middle part of the piece to be detected to deform downwards;
s4, when the pressure value on the pressure sensor is close to the deflection theoretical value of the piece to be detected, keeping a magnetic field applied to the upper part of the I-shaped rod, controlling the gradient increase of the interval of the extrusion force of the jack on the piece to be detected, and repeatedly pressing down until a crack is generated, accumulating and gathering a plurality of trailing swim grains at the crack, and generating a swing phenomenon that the tail parts of the trailing swim grains are obviously different from the positions where the trailing swim grains are uniformly distributed;
s5, continuously acquiring the bending condition of the lower surface of the piece to be measured and the distribution and change condition of the trailing particles in the previous steps by the aid of the high-definition cameras on the particle adding plate, continuously transmitting visual information to the control box, obtaining a cracking conclusion by the control box through an image analysis technology, stopping applying pressure, and calculating deflection.
Further, the multiple reciprocating downward pressing of the jack in the step S4 is:
the pressures at which the jacks were ramped up were noted F1, F2, F3... FN;
s41, gradually increasing the pressure of the jack to F2 to extrude the piece to be tested, and controlling the extrusion force of the jack to the piece to be tested to be F1 after the high-definition camera does not acquire obvious change of the trailing floating particles;
s42, increasing the pressure from F1 to F3, and reducing the pressure to F2 when the trailing swim grains do not obviously change;
and S43, continuously repeating the extrusion process with the pressure interval increasing until the tailing floating grains are obviously changed, stopping the process, and finally obtaining a pressure value range between FN-1 and FN when cracking.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) according to the scheme, a magnetic field is applied when detection is carried out, a plurality of tailing moving particles are uniformly adsorbed on the lower surface of the middle part of a piece to be measured, when the limit value of theoretical prediction is approached, the extrusion force of a jack is increased through interval gradient, after the piece to be measured is cracked, the magnetic leakage phenomenon is large in attraction of the tailing moving particles at the crack, the tailing moving particles are gathered at the crack, at the moment, when the pressure value is reduced, the opening of the crack is contracted to extrude the tailing moving particles, the end part of the tailing moving particles is broken, magnetic suspension overflows, part of the magnetic suspension moves downwards to form the surfaces of the tailing moving particles, gas is released from the surfaces of the tailing moving particles, the tail parts of the gathered tailing moving particles are blown with force, the tailing moving particles are different from the tailing moving particles at the part which is not cracked, at the moment, the distribution range of the limit deflection value can be effectively reduced according to the changed image information, and the deflection measurement accuracy is remarkably improved.
(2) The tailing swimming particles comprise an aerogenesis web member, a magnetic leading head ball fixedly connected to the upper end part of the aerogenesis web member and flexible fiber whiskers fixedly connected to the lower end of the aerogenesis web member, magnetic suspension is filled in the magnetic leading head ball, the magnetic suspension is a mixture of water and magnetic powder, the end part of the tailing swimming particles has magnetism, and under the action of an external magnetic field, the head part of the tailing swimming particles is distributed on the lower surface of a piece to be detected in an upward mode, so that when cracks are generated, the head part of the tailing swimming particles at the cracks can be extruded and broken.
(3) The gas production web member is of an elastic porous hollow structure, effervescent tablet particle fillers are filled in the gas production web member, the flexible fiber is made of flexible materials, after the tailing floating particles are extruded and broken, the water in the gas production web member overflows and falls along the gas production web member, so that part of water can permeate into the gas production web member to generate gas, and the gas generates obvious blowing power on the tail part of the tailing floating particles around when overflowing, so that the gas generates obvious swinging phenomenon.
(4) Effervescent tablet powder particles are adsorbed in the gas production web member and the pores through extrusion, gas is inflated into the gas production web member through one of the pores, and then the gas is pumped out, so that a certain adsorption force is generated on the outside effervescent tablet powder particles, partial powder particles enter the gas production web member, and partial powder particles are directly embedded on the pores, so that the gas is generated when the gas is contacted with water more conveniently, the gas production speed is higher, the speed of observing the changed image information by the high-definition camera is further improved, and the accuracy is higher.
Drawings
FIG. 1 is a perspective view of a single embodiment of the present invention;
FIG. 2 is a perspective view of another embodiment of the present invention;
FIG. 3 is a schematic structural diagram of the front side of the present invention;
FIG. 4 is a schematic structural view of a particleboard portion of the present invention;
FIG. 5 is a perspective view of a pellet adding portion of the present invention;
FIG. 6 is a schematic structural diagram of a trailing swimmer of the present invention;
FIG. 7 is a schematic structural view of a gas production web member of the present invention;
FIG. 8 is a schematic view of the broken ball of the magnetic leader of the present invention;
FIG. 9 is a schematic structural view of the gas-producing web rod of the present invention after encountering water to produce gas;
FIG. 10 is a comparison graph of the distribution of trailing particles on the lower surface of the object before and after cracking
The reference numbers in the figures illustrate:
the device comprises a base 1, side plates 2, an I-shaped rod 3, a control box 4, a hydraulic rod 5, a clamping end 6, a positioning bolt 7, a gasket 8, a grain adding plate 9, a connecting plate 91, a grain storage arc plate 92, a jack 10, a high-definition camera 11, a grain containing groove 12, a grain tailing floating grain 13, a grain producing web member 131, a magnetic head leading ball 132, a flexible fiber whisker 133, a pressure sensor 14 and a push plate 15.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-3, a novel high-speed steel deflection detection device comprises two bases 1, side plates 2 are fixedly connected to the upper ends of the bases 1, a control box 4 is installed at the outer end of one of the side plates 2, an I-shaped rod 3 is connected between the two side plates 2, a jack 10 is installed at the lower end of the I-shaped rod 3, a pressure sensor 14 is installed at the lower end of the jack 10, a push plate 15 is fixedly connected to the lower end of a high-definition camera 11, two telescopic clamping rods are connected between the two bases 1 and comprise two hydraulic rods 5 which are respectively connected with the bases 1 in a sliding manner through an electric sliding table, two matched clamping ends 6 are fixedly connected to one ends of the two hydraulic rods 5, a positioning bolt 7 is connected to the clamping ends 6 in a threaded manner, a rubber plate embedded with a steel sheet is fixedly connected to the end of the positioning bolt 7 in the clamping end 6, so as to facilitate the longitudinal positioning of the end of a piece to be detected, the stability of being convenient for measure the process goes on, hydraulic stem 5 and the junction fixedly connected with gasket 8 of exposed core 6, 8 diameters of gasket are not less than 1.5 times of 5 tip diameters of hydraulic stem, gasket 8 effectively improves the stability of being connected between hydraulic stem 5 and the exposed core 6, fixedly connected with adds a board 9 between the middle part of two bases 1, add a plurality of high definition digtal camera 11 of installing on board 9, hydraulic stem 5, jack 10, high definition digtal camera 11 and pressure sensor 14 all with 4 signal connection of control box.
Please refer to fig. 4-5, the grain adding plate 9 includes two connecting plates 91 and a grain storage arc plate 92 fixedly connected to the middle portion of the connecting plate 91, a grain containing groove 12 is formed on the grain storage arc plate 92, a plurality of tailing swim grains 13 are placed in the grain containing groove 12, the camera ends of the plurality of high-definition cameras 11 are all designed to be inclined, and the camera ends all face to the grain containing groove 12, so that when the deflection is detected, the plurality of high-definition cameras 11 acquire the multi-directional changing image information of the middle lower surface of the piece to be detected, and the finally obtained deflection value is more accurate.
Referring to fig. 6, the trailing swim grain 13 includes a gas-generating web member 131, a magnetic lead ball 132 fixedly connected to an upper end of the gas-generating web member 131, and a flexible fiber whisker 133 fixedly connected to a lower end of the gas-generating web member 131, the magnetic lead ball 132 is filled with a magnetic suspension, the magnetic suspension is a mixture of water and magnetic powder, so that the end of the trailing swim grain 13 has magnetism, and under the action of an external magnetic field, the magnetic suspension is distributed on the lower surface of the to-be-tested piece in a manner that the head of the trailing swim grain 13 is upward, so that the head of the trailing swim grain 13 at the crack can be squeezed and broken when the crack is generated.
The total length of the gas production web member 131 and the magnetic guide head ball 132 is 2-5mm, the length of the flexible fiber whisker 133 is not less than the total length of the head and the abdomen, and the magnetic guide head ball 132 is made of silicon rubber film material.
As shown in fig. 7, the gas production web member 131 is an elastic porous hollow structure, effervescent tablet particle filler is filled in the gas production web member 131, the flexible fiber whisker 133 is made of flexible material, as shown in fig. 8-9, after the trailing swim particles 13 are squeezed and broken, the water in the gas production web member overflows and falls down along the gas production web member 131, so that part of the water can permeate into the gas production web member to generate gas, and the gas generates obvious blowing power to the tail part of the trailing swim particles 13 around the gas production web member when overflowing, so that the gas generates obvious swinging phenomenon.
A novel high-speed steel deflection detection device comprises the following use method:
s1, respectively installing two end parts of the high-speed steel to be tested on the two telescopic clamping rods, fastening the two end parts through the positioning bolts 7, and then adjusting the positions of the two telescopic clamping rods to enable the middle part of the part to be tested to be located right below the jack 10;
s2, applying a magnetic field right above the I-shaped rod 3, adsorbing the trailing particles 13, and enabling the trailing particles 13 to move upwards and be uniformly adhered to the lower surface of the piece to be detected;
s3, controlling the jack 10 to apply pressure to the piece to be detected through the control box 4, and enabling the middle part of the piece to be detected to deform downwards;
s4, when the pressure value on the pressure sensor 14 is close to the deflection theoretical value of the piece to be measured, keeping a magnetic field applied on the H-shaped rod 3, controlling the gradient increase of the extrusion force interval of the jack 10 on the piece to be measured by the control box 4, and repeatedly pressing down until a crack is generated, accumulating and gathering a plurality of trailing swim particles 13 at the crack, and generating a swing phenomenon that the tail parts of the trailing swim particles 13 are obviously different from the uniformly distributed parts of the trailing swim particles 13;
s5, continuously acquiring the bending condition of the lower surface of the piece to be measured and the distribution and change condition of the trailing swim particles 13 in the previous step by the aid of the high-definition cameras 11 on the particle adding plate 9, continuously transmitting visual information to the control box 4, obtaining a cracking conclusion by the control box 4 through an image analysis technology, stopping applying pressure, and calculating deflection.
The multiple reciprocating downward pressing of the jack 10 in step S4 is:
the pressures at which jack 10 increases in gradient are designated F1, F2, F3... FN;
s41, gradually increasing the pressure of the jack 10 to F2 to extrude the piece to be tested, and controlling the extrusion force of the jack 10 to the piece to be tested to be F1 after the high-definition camera 11 does not acquire obvious change of the trailing swim particles 13;
s42, increasing the pressure from F1 to F3, and reducing the pressure to F2 when the trailing swim grains 13 do not obviously change;
and S43, continuously repeating the extrusion process with the pressure interval increasing until the position of the trailing swim grains 13 is obviously changed, stopping the process, and finally obtaining a pressure value range between FN-1 and FN when cracking.
When a piece to be detected is cracked, the attractive force of a magnetic leakage phenomenon at the crack to the trailing particles 13 is larger than that of the nearby uncracked part, so that the trailing particles 13 are gathered at the crack, at the moment, when the pressure value is reduced, the opening of the crack is contracted to extrude the trailing particles 13, the end parts of the trailing particles are cracked, the magnetic suspension overflows, part of the magnetic suspension moves downwards to the surface of the trailing particles 13, so that the surface of the trailing particles 13 releases gas, the tail parts of the gathered trailing particles 13 are blown with a force to be different from the uncracked trailing particles 13, and at the moment, the distribution range of the deflection limit value can be effectively reduced according to the changed image information, the accuracy of deflection measurement is obviously improved.
Example 2:
effervescent tablet powder particles are adsorbed in the gas production web member 131 and the pores through extrusion, gas is inflated into the gas production web member 131 through one of the pores, and then the gas is pumped out, so that a certain adsorption force is generated on the external effervescent tablet powder particles, partial powder particles enter the gas production web member 131, and partial powder particles are directly embedded in the pores, so that the gas is generated when the gas is contacted with water more conveniently, the gas production speed is higher, the speed of observing the changed image information by the high-definition camera 11 is further improved, and the accuracy is higher.
Only the above in this embodiment is different from embodiment 1, and the rest remains the same as embodiment 1.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a novel high-speed steel amount of deflection check out test set, includes two bases (1), its characterized in that: the utility model discloses a high-definition camera, including base (1), curb plate (2) are fixedly connected with to base (1) upper end, control box (4) are installed to the outer end of one of them curb plate (2), two be connected with worker shape pole (3) between curb plate (2), jack (10) are installed to worker shape pole (3) lower extreme, pressure sensor (14) are installed to jack (10) lower extreme, high definition camera (11) lower extreme fixedly connected with push pedal (15), two be connected with two flexible clamping bars between base (1), flexible clamping bar includes two hydraulic stem (5) through electronic slip table respectively with base (1) sliding connection, two the one end that hydraulic stem (5) are close to each other all fixedly connected with two clamping ends (6) that match each other, two fixedly connected with adds grain board (9) between the middle part of base (1), add a plurality of high definition camera (11) are installed to grain board (9) upper end, the hydraulic rod (5), the jack (10), the high-definition camera (11) and the pressure sensor (14) are in signal connection with the control box (4).
2. The novel high-speed steel deflection detection device according to claim 1, characterized in that: the joint of the hydraulic rod (5) and the clamping end (6) is fixedly connected with a gasket (8), and the diameter of the gasket (8) is not less than 1.5 times of that of the end of the hydraulic rod (5).
3. The novel high-speed steel deflection detection device according to claim 1, characterized in that: threaded connection has positioning bolt (7) on exposed core (6), positioning bolt (7) are located the inside rubber slab that has inlayed the steel sheet of tip fixedly connected with in exposed core (6).
4. The novel high-speed steel deflection detection device according to claim 1, characterized in that: add a board (9) and include two connecting plates (91) and fixed connection at storage grain arc board (92) at connecting plate (91) middle part, it holds a groove (12) to cut on storage grain arc board (92), it has a plurality of tailing trip grains (13) to place in groove (12) to hold a grain.
5. The novel high-speed steel deflection detection device according to claim 4, characterized in that: the camera ends of the high-definition cameras (11) are all designed in an inclined mode, and the camera ends face the positions right above the grain containing grooves (12).
6. The novel high-speed steel deflection detection device according to claim 5, characterized in that: the tailing swimming particles (13) comprise an aerogenic web member (131), a magnetic guide head ball (132) fixedly connected to the upper end of the aerogenic web member (131) and flexible fiber whiskers (133) fixedly connected to the lower end of the aerogenic web member (131), and magnetic suspension is filled in the magnetic guide head ball (132).
7. The novel high-speed steel deflection detection device according to claim 6, characterized in that: the gas production web member (131) is of an elastic porous hollow structure, effervescent tablet particle fillers are filled in the gas production web member (131), and the flexible fiber whiskers (133) are made of flexible materials.
8. The novel high-speed steel deflection detection device according to claim 6, characterized in that: effervescent tablet powder particles are absorbed in the gas production web member (131) and in the pores through extrusion.
9. The novel high-speed steel deflection detection device according to claim 6, characterized in that: the using method comprises the following steps:
s1, respectively installing two end parts of the high-speed steel to be tested on the two telescopic clamping rods, fastening the two end parts through positioning bolts (7), and then adjusting the position of the high-speed steel to enable the middle part of the part to be tested to be located right below a jack (10);
s2, applying a magnetic field right above the H-shaped rod (3) to adsorb the trailing particles (13), so that the trailing particles (13) move upwards and are uniformly adhered to the lower surface of the piece to be detected;
s3, controlling the jack (10) to apply pressure to the piece to be detected through the control box (4), and enabling the middle part of the piece to be detected to deform downwards;
s4, when the pressure value on the pressure sensor (14) is close to the deflection theoretical value of the piece to be measured, keeping a magnetic field applied to the upper part of the I-shaped rod (3), controlling the gradient increase of the extrusion force interval of the jack (10) on the piece to be measured by the control box (4), and carrying out reciprocating downward pressing for multiple times until cracks are generated, accumulating and gathering a plurality of trailing moving particles (13) at the cracks, and generating a swinging phenomenon that the tail parts of the trailing moving particles (13) are obviously different from the uniformly distributed parts of the trailing moving particles (13);
s5, continuously acquiring the bending condition of the lower surface of the piece to be measured and the distribution and change condition of the trailing swim particles (13) in the previous step by the aid of the high-definition cameras (11) on the particle adding plate (9), continuously transmitting visual information to the control box (4), obtaining a cracking conclusion by the control box (4) through an image analysis technology, stopping applying pressure, and calculating deflection.
10. The novel high-speed steel deflection detection device of claim 9, which is characterized in that: the multiple reciprocating downward pressing of the jack (10) in the step S4 is as follows:
the pressures at which the jack (10) increases in gradient are denoted as F1, F2, F3... FN;
s41, gradually increasing the pressure of the jack (10) to F2 to extrude the piece to be tested, and controlling the extrusion force of the jack (10) to the piece to be tested to be F1 after the high-definition camera (11) does not acquire obvious change of the trailing swim particles (13);
s42, increasing the pressure from F1 to F3, and reducing the pressure to F2 when the trailing swim grains (13) do not obviously change;
and S43, continuously repeating the extrusion process with the pressure interval increasing until the position of the trailing floating grains (13) is obviously changed, stopping the process, and finally obtaining a pressure value range between FN-1 and FN when cracking.
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Cited By (1)
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| CN116609204A (en) * | 2023-07-11 | 2023-08-18 | 四川科润汇鑫新材料科技有限公司 | Fiber board bending test device and method |
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Effective date of registration: 20231227 Address after: Room 101-16, Floor 2, Economic Development Service Center, Shengjing Street, Fuqian Street, Shengjing Street, Zhangqiu District, Jinan City, Shandong Province, 250000 Patentee after: CHINA RAILWAY 14TH CONSTRUCTION BUREAU GROUP BUILDING ENGINEERING Co.,Ltd. Patentee after: TIEZHENG TESTING TECHNOLOGY Co.,Ltd. Address before: 250014 A Block of Railway Building, 2666 Austrian West Road, Lixia District, Jinan City, Shandong Province Patentee before: CHINA RAILWAY 14TH CONSTRUCTION BUREAU GROUP BUILDING ENGINEERING Co.,Ltd. |