CN111238968A - Electromagnetic experimental device for testing impact mechanical property of composite material - Google Patents
Electromagnetic experimental device for testing impact mechanical property of composite material Download PDFInfo
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- CN111238968A CN111238968A CN202010120094.1A CN202010120094A CN111238968A CN 111238968 A CN111238968 A CN 111238968A CN 202010120094 A CN202010120094 A CN 202010120094A CN 111238968 A CN111238968 A CN 111238968A
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- 239000002131 composite material Substances 0.000 title claims abstract description 39
- 238000012360 testing method Methods 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000003139 buffering effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 12
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000000034 method Methods 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
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/307—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by a compressed or tensile-stressed spring; generated by pneumatic or hydraulic 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
- G01N3/04—Chucks
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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
- G01N2203/001—Impulsive
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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
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0035—Spring
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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
- G01N2203/0452—Cushioning layer between test piece and grip
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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
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses an electromagnetic type experimental device for testing impact mechanical properties of a composite material, which comprises a box body, wherein two elastic belts are fixedly connected to the inner wall of the box body, a pressure sensor is fixedly connected between the two elastic belts, a buffer device is installed on the side wall of the pressure sensor, two symmetrically-arranged U-shaped frames are fixedly connected to the inner wall of the box body, fixed columns are fixedly connected to the opposite sides of the U-shaped frames, deflection rods are rotatably connected to the joints of the two fixed columns and the U-shaped frames, one ends of the two deflection rods are rotatably connected with connecting rods, a threaded rod penetrates through the U-shaped frames, and a transverse plate is rotatably connected to one end, close to the U-shaped frames, of the threaded rod. The invention changes the detection of different positions by changing the launching angle of the impact object, can complete the experiment of different impact forces without adjusting the height and the weight, improves the experiment efficiency and ensures that the experiment is simple and rapid.
Description
Technical Field
The invention relates to the technical field of machinery, in particular to an electromagnetic experimental device for testing impact mechanical properties of a composite material.
Background
The composite material is a new material formed by optimizing and combining material components with different properties by applying an advanced material preparation technology. The composite material generally defined meets the condition that the composite material must be artificial and designed and manufactured by people according to needs; the composite material is formed by combining two or more material components with different chemical and physical properties in a designed form, proportion and distribution, and obvious interfaces exist among the components; the structure is designable, and a composite structure can be designed; the composite material not only maintains the advantages of the properties of the materials of each component, but also can obtain the comprehensive properties which cannot be achieved by a single component material through the complementation and the correlation of the properties of each component.
The current composite impact mechanical property testing device tests through hammer head free falling body, changes impact force through changing the height of the hammer head and increasing the number of weights, cannot ensure verticality in the free falling body process when the mode is adopted for testing, needs to meet the experimental requirements of various heights, and has large equipment and complex structure.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides an electromagnetic experimental device for testing the impact mechanical property of a composite material.
In order to achieve the purpose, the invention adopts the following technical scheme:
the electromagnetic experimental device for testing the impact mechanical property of the composite material comprises a box body, wherein two elastic belts are fixedly connected to the inner wall of the box body, a pressure sensor is fixedly connected between the two elastic belts, a buffer device is installed on the side wall of the pressure sensor, two symmetrically-arranged U-shaped frames are fixedly connected to the inner wall of the box body, fixed columns are fixedly connected to the opposite sides of the U-shaped frames, deflection rods are rotatably connected to the joints of the two fixed columns and the U-shaped frames, one ends of the two deflection rods are rotatably connected with connecting rods, a threaded rod penetrates through the U-shaped frames, a transverse plate is rotatably connected to one end, close to the U-shaped frames, of the threaded rod, two ends of the transverse plate are respectively rotatably connected to one end, far away from the deflection rods, of the connecting rods, and one end, far away from, the dwang rotates jointly with the tip of deflection pole and is connected with a connecting block, two the equal fixedly connected with splint of one side that the connecting block is relative, the interior top fixedly connected with montant of box, the lower extreme of montant passes through angle adjustment mechanism fixedly connected with drum, install the launching mechanism who is used for launching the impact object on the drum.
Preferably, angle adjustment mechanism includes two sector plates of fixed connection on the drum, two it is connected with the pivot to rotate between the sector plate, montant fixed connection is in the pivot, the bar groove has been seted up to the lateral wall of montant, bar inslot sliding connection has the gag lever post, the lateral wall of sector plate is followed its circumference equidistant a plurality of spacing grooves with gag lever post matched with, the lateral wall fixedly connected with of gag lever post is rather than vertically pull rod, the pull rod passes through second spring elastic connection on the inner wall in bar groove.
Preferably, the side wall of the pull rod is fixedly connected with a holding rod perpendicular to the pull rod, and the side wall of the holding rod is wrapped with a rubber sleeve.
Preferably, the launching mechanism includes the push pedal of sliding connection in the drum, one side fixedly connected with push rod of keeping away from pressure sensor of push pedal, the push rod runs through the inner wall of drum, the one end fixedly connected with rack of push pedal is kept away from to the push rod, the lateral wall fixedly connected with driving motor of drum, driving motor's output shaft fixedly connected with and rack matched with semi-gear, the part cover that the push rod is located between push pedal and the drum inner wall is equipped with the third spring.
Preferably, buffer includes the drum of fixed connection on the pressure sensor lateral wall, sliding connection has the movable rod in the drum, the movable rod passes through first spring elastic connection at the drum, the one end fixedly connected with that the drum was kept away from to the movable rod supports the board.
Preferably, the anti-skid pads are glued on the opposite sides of the two clamping plates, and anti-skid protrusions and anti-skid lines are uniformly distributed on the surfaces of the anti-skid pads.
Preferably, the inner bottom of the box body is fixedly connected with a storage groove, and a buffer sponge is arranged at the inner bottom of the storage groove.
Preferably, the upper end of the threaded rod is fixedly connected with a hand wheel, and an anti-skid ring is arranged on the hand wheel.
The invention has the following beneficial effects:
1. the threaded rod is driven to rotate through rotation of the hand wheel, the threaded rod drives the transverse plate to move, the transverse plate moves to drive the connecting block to move through the connecting rod and the deflection rod, the connecting block moves to clamp the conforming materials through the clamping plate, the conforming materials are further fixed, the fixing is convenient and rapid, the composite materials in different batches can be conveniently detected, and the detection efficiency is improved;
2. the limiting rod is separated from the limiting groove by pulling the holding rod, then the angle of the cylinder is adjusted, the holding rod is loosened after the adjustment is finished, the limiting rod is inserted into the limiting groove under the action of the second spring, composite materials at different angles and different positions can be detected, and the detection accuracy is improved;
3. the driving motor drives the half gear to rotate, the rack drives the push rod to move, the push rod compresses the third spring while moving, when the remaining rack of the half gear is separated, elastic potential energy in the third spring is released instantly, the impact object is pushed out through the push plate to impact the composite material, the composite material deforms and exerts a force on the pressure sensor behind the composite material, and the forces with different sizes are measured through the pressure sensor to enable the composite material to deform.
Drawings
FIG. 1 is a schematic structural diagram of an electromagnetic experimental apparatus for testing impact mechanical properties of composite materials, according to the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is an enlarged schematic view of the structure at B in bitmap 1;
fig. 4 is an enlarged schematic diagram of the structure at C in bitmap 1.
In the figure: the device comprises a box body 1, a storage groove 2, an elastic belt 3, a pressure sensor 4, a hand wheel 5, a cylinder 6, a supporting plate 7, a movable rod 8, a vertical rod 9, a cylinder 10, a push plate 11, a third spring 12, a push rod 13, a threaded rod 14, a U-shaped frame 15, a transverse plate 16, a connecting rod 17, a deflection rod 18, a fixed column 19, a rotating rod 20, a connecting block 21, a clamping plate 22, a second spring 23, a pull rod 24, a holding rod 25, a limiting rod 26, a limiting groove 27, a sector disc 28, a rotating shaft 29, a rack 30, a driving motor 31 and a half gear 32.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-4, an electromagnetic experimental apparatus for testing impact mechanical properties of a composite material, including a box 1, two elastic belts 3 fixedly connected to an inner wall of the box 1, a pressure sensor 4 fixedly connected between the two elastic belts 3, a buffer device installed on a side wall of the pressure sensor 4, the buffer device including a cylinder 6 fixedly connected to a side wall of the pressure sensor 4, a movable rod 8 slidably connected to the cylinder 6, the movable rod 8 being elastically connected to the cylinder 6 through a first spring, and a support plate 7 fixedly connected to one end of the movable rod 8 far from the cylinder 6.
The inner wall fixedly connected with of box 1 two U-shaped frame 15 that the symmetry set up, the equal fixedly connected with fixed column 19 in one side that U-shaped frame 15 is relative, two fixed column 19 rotate with the junction of U-shaped frame 15 and are connected with deflection bar 18, the one end of two deflection bars 18 rotates and is connected with connecting rod 17, run through on the U-shaped frame 15 and be provided with a threaded rod 14, the upper end fixedly connected with hand wheel 5 of threaded rod 14 is provided with the antiskid circle on the hand wheel 5.
Threaded rod 14 is close to the one end rotation of U-shaped frame 15 and is connected with a diaphragm 16, the both ends of diaphragm 16 rotate respectively and connect the one end of keeping away from deflection pole 18 at connecting rod 17, the one end rotation that U-shaped frame 15 was kept away from to fixed column 19 is connected with a rotation pole 20, the end of rotation pole 20 and deflection pole 18 rotates jointly and is connected with a connecting block 21, the equal fixedly connected with splint 22 in one side that two connecting blocks 21 are relative, rotate hand wheel 5, hand wheel 5 rotates and drives threaded rod 14 and rotate, threaded rod 14 rotates and drives diaphragm 16 and remove, diaphragm 16 removes and drives connecting block 21 through connecting rod 17 and deflection pole 18 and remove, connecting block 21 removes and will accord with the material centre gripping through splint 22, and then fix the material that accords with, the interior top.
The anti-skid pads are glued on the opposite sides of the two clamping plates 22, and anti-skid protrusions and anti-skid lines are uniformly distributed on the surfaces of the anti-skid pads.
The lower extreme of montant 9 passes through angle adjustment mechanism fixedly connected with drum 10, angle adjustment mechanism includes two sector disc 28 of fixed connection on drum 10, it is connected with pivot 29 to rotate between two sector disc 28, montant 9 fixed connection is in pivot 29, the bar groove has been seted up to the lateral wall of montant 9, bar inslot sliding connection has gag lever post 26, the lateral wall of sector disc 28 is followed its circumference equidistant a plurality of and gag lever post 26 matched with spacing grooves 27 have been seted up, the lateral wall fixedly connected with of gag lever post 26 rather than vertically pull rod 24, pull rod 24 passes through second spring 23 elastic connection on the inner wall in bar groove.
The lateral wall fixedly connected with of pull rod 24 has rather than perpendicular holding rod 25, and the lateral wall parcel of holding rod 25 has the rubber sleeve, pulling holding rod 25, makes gag lever post 26 break away from spacing groove 27, then adjusts the angle of drum 10, loosens holding rod 25 after the adjustment is accomplished, and under the effect of second spring 23, gag lever post 26 inserts in spacing groove 27.
The cylinder 10 is provided with a launching mechanism for launching the impact object, the launching mechanism comprises a push plate 11 which is slidably connected in the cylinder 10, one side of the push plate 11, which is far away from the pressure sensor 4, is fixedly connected with a push rod 13, the push rod 13 penetrates through the inner wall of the cylinder 10, one end of the push rod 13, which is far away from the push plate 11, is fixedly connected with a rack 30, the side wall of the cylinder 10 is fixedly connected with a driving motor 31, an output shaft of the driving motor 31 is fixedly connected with a half gear 32 which is matched with the rack 30, a part of the push rod 13, which is positioned between the push plate 11 and the inner wall of the cylinder 10, is sleeved with a third spring 12, a switch of the driving motor 31 is turned on, the driving motor 31 drives the half gear 32 to rotate, and then drives the push rod 13 to move through the rack 30, the push rod 13 compresses the third spring 12 while, the impact object is impacted on the composite material, the composite material deforms and applies a force to the pressure sensor 4 behind the composite material, and the pressure sensor 4 measures forces with different magnitudes to enable the composite material to deform.
The inner bottom of the box body 1 is fixedly connected with a storage tank 2, and the inner bottom of the storage tank 2 is provided with a buffer sponge.
The working principle of the invention is as follows:
when the experimental device is used, an operator places two ends of a composite material to be detected between two clamping plates 22 respectively, then rotates a hand wheel 5, the hand wheel 5 rotates to drive a threaded rod 14 to rotate, the threaded rod 14 rotates to drive a transverse plate 16 to move, the transverse plate 16 moves to drive a connecting block 21 to move through a connecting rod 17 and a deflection rod 18, the connecting block 21 moves to clamp a conforming material through the clamping plates 22, the conforming material is further fixed, the operator adjusts the angle of the cylinder 10 after the composite material is fixed, the operator specifically pulls the holding rod 25 to separate the holding rod 26 from the limiting groove 27, then adjusts the angle of the cylinder 10, the holding rod 25 is loosened after the adjustment is completed, the holding rod 26 is inserted into the limiting groove 27 under the action of the second spring 23, when an impact object is shot, the operator opens a switch of the driving motor 31, the driving motor 31 drives the half gear 32 to rotate, and then the push rod 13 is driven to move through the rack 30, the push rod 13 compresses the third spring 12 while moving, when the residual rack 30 of the half gear 32 is separated, the elastic potential energy in the third spring 12 is released instantly, the impact object is pushed out through the push plate 11 to impact the composite material, the composite material is deformed and exerts a force on the pressure sensor 4 behind the composite material, and the pressure sensor 4 measures forces with different magnitudes to deform the composite material.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The electromagnetic experimental device for testing the impact mechanical property of the composite material comprises a box body (1) and is characterized in that two elastic belts (3) are fixedly connected to the inner wall of the box body (1), a pressure sensor (4) is fixedly connected between the two elastic belts (3), a buffer device is installed on the side wall of the pressure sensor (4), two U-shaped frames (15) which are symmetrically arranged are fixedly connected to the inner wall of the box body (1), fixed columns (19) are fixedly connected to one opposite sides of the U-shaped frames (15), deflection rods (18) are rotatably connected to the joints of the two fixed columns (19) and the U-shaped frames (15), connecting rods (17) are rotatably connected to one ends of the two deflection rods (18), a threaded rod (14) penetrates through the U-shaped frames (15), and a transverse plate (16) is rotatably connected to one end, close to the U-shaped frames (15), of the threaded rod (14), the both ends of diaphragm (16) rotate respectively to be connected in the one end of keeping away from deflection pole (18) in connecting rod (17), the one end rotation that U-shaped frame (15) were kept away from in fixed column (19) is connected with a dwang (20), dwang (20) rotate jointly with the tip of deflection pole (18) and are connected with a connecting block (21), two the equal fixedly connected with splint (22) in one side that connecting block (21) is relative, the interior top fixedly connected with montant (9) of box (1), the lower extreme of montant (9) passes through angle adjustment mechanism fixedly connected with drum (10), install the launching mechanism who is used for the transmission to strike the thing on drum (10).
2. The electromagnetic experimental device for testing the impact mechanical property of a composite material according to claim 1, wherein the angle adjusting mechanism comprises two sector discs (28) fixedly connected to the cylinder (10), two of the sector discs (28) are rotatably connected with a rotating shaft (29), the vertical rod (9) is fixedly connected to the rotating shaft (29), a strip-shaped groove is formed in the side wall of the vertical rod (9), a limiting rod (26) is slidably connected to the strip-shaped groove, a plurality of limiting grooves (27) matched with the limiting rod (26) are formed in the side wall of the sector disc (28) at equal intervals along the circumferential direction of the side wall of the sector disc, the side wall of the limiting rod (26) is fixedly connected with a pull rod (24) perpendicular to the side wall of the limiting rod, and the pull rod (24) is elastically connected to the inner wall of the strip-shaped groove through a second spring.
3. The electromagnetic experimental device for the composite impact mechanical property test is characterized in that a holding rod (25) perpendicular to the pulling rod (24) is fixedly connected to the side wall of the pulling rod (24), and a rubber sleeve is wrapped on the side wall of the holding rod (25).
4. The electromagnetic experimental device for testing the impact mechanical property of the composite material according to claim 1, wherein the launching mechanism comprises a push plate (11) slidably connected in a cylinder (10), a push rod (13) is fixedly connected to one side of the push plate (11) far away from the pressure sensor (4), the push rod (13) penetrates through the inner wall of the cylinder (10), a rack (30) is fixedly connected to one end of the push rod (13) far away from the push plate (11), a driving motor (31) is fixedly connected to the side wall of the cylinder (10), a half gear (32) matched with the rack (30) is fixedly connected to an output shaft of the driving motor (31), and a third spring (12) is sleeved on a part of the push rod (13) between the push plate (11) and the inner wall of the cylinder (10).
5. The electromagnetic experimental device for the composite impact mechanical property test according to any one of claims 1 to 4, wherein the buffering device comprises a cylinder (6) fixedly connected to a side wall of the pressure sensor (4), a movable rod (8) is slidably connected in the cylinder (6), the movable rod (8) is elastically connected to the cylinder (6) through a first spring, and a supporting plate (7) is fixedly connected to one end, away from the cylinder (6), of the movable rod (8).
6. The electromagnetic experimental device for the composite impact mechanical property test is characterized in that anti-skid pads are glued on the opposite sides of the two clamping plates (22), and anti-skid protrusions and anti-skid lines are uniformly distributed on the surfaces of the anti-skid pads.
7. The electromagnetic experimental device for testing the impact mechanical property of the composite material according to claim 1, wherein a storage tank (2) is fixedly connected to the inner bottom of the box body (1), and a buffer sponge is arranged at the inner bottom of the storage tank (2).
8. The electromagnetic experimental device for the composite impact mechanical property test according to claim 1, wherein a hand wheel (5) is fixedly connected to the upper end of the threaded rod (14), and an anti-slip ring is arranged on the hand wheel (5).
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| CN202010120094.1A CN111238968A (en) | 2020-02-26 | 2020-02-26 | Electromagnetic experimental device for testing impact mechanical property of composite material |
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| CN112345389A (en) * | 2020-10-23 | 2021-02-09 | 广州幸永科技有限公司 | Glass striking formula detection device during intelligent manufacturing |
| CN114739267A (en) * | 2022-03-25 | 2022-07-12 | 嘉兴艾云软件科技有限公司 | Deformation displacement test mechanism based on computer software and hardware |
| CN115326564A (en) * | 2022-08-09 | 2022-11-11 | 中国人民解放军陆军工程大学 | Fiber bundle dynamic tensile property testing device |
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