CN111157371A - Multi-functional disconnect-type Hopkinson depression bar experiment sample recovery unit - Google Patents
Multi-functional disconnect-type Hopkinson depression bar experiment sample recovery unit Download PDFInfo
- Publication number
- CN111157371A CN111157371A CN202010009431.XA CN202010009431A CN111157371A CN 111157371 A CN111157371 A CN 111157371A CN 202010009431 A CN202010009431 A CN 202010009431A CN 111157371 A CN111157371 A CN 111157371A
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- collecting box
- sleeve
- bracket
- shpb
- screw
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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
-
- 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
Abstract
The invention discloses a multifunctional separated Hopkinson pressure bar experiment sample recovery device which comprises a rear collection box, a recovery drawer, a sleeve seat, a top cover plate, a front collection box, a transparent baffle and a photographic support. The lower ends of the front and rear collecting boxes are respectively provided with a U-shaped groove and fixed on guide rails in front of and behind a Split Hopkinson Pressure Bar (SHPB) horizontal frame through bolts, so that the mounting height can be conveniently adjusted. The sleeve seats are fixed on the two sides of the front collecting box and the rear collecting box through bolts, and the corresponding sleeve installation is only needed to be replaced for SHPB experimental devices with different diameters. The recovery drawer is arranged at the rear part of the rear collecting box and is supported by supporting blocks at two sides in the collecting box. The top cover plate is arranged at the top end of the rear collecting box, the transparent baffle plate is arranged on the front collecting box, and the photographic support is arranged in the middle of the front collecting box. The invention has simple structure, convenient installation and disassembly, adjustable installation height, convenient shooting of the experimental process, suitability for recovering SHPB experimental samples with different diameters, and integration of protection, recovery and sample transfer.
Description
Technical Field
The invention belongs to the field of material dynamic mechanical property experiment test equipment, and particularly relates to a multifunctional Separated Hopkinson Pressure Bar (SHPB) experiment sample recovery device.
Background
The research on the dynamic mechanical response of the material under the high strain rate loading has important significance on the material performance research and the structure design. The SHPB experimental technology is the most important means for researching the mechanical properties of materials under high strain rate and is an important component of an explosion and impact dynamics analysis technology. The SHPB has the advantages of simple structure, convenience in operation, exquisite measurement method and easiness in control of loaded waveforms, and becomes important experimental equipment for researching the dynamic mechanical property of the material.
When an SHPB experiment is carried out, a sample needs to be clamped in the same axial position between an incident rod and a transmission rod. The sample can be knocked away after being impacted at a high speed, fragments of brittle materials such as rocks and concrete can be subjected to a flying phenomenon to the periphery, great hidden dangers are generated to the safety of experiment operators, the flying fragments are difficult to clean and collect, and particularly when the damage form and microstructure characteristics of the sample after impact need to be researched, the sample after impact needs to be recovered and transferred. At present, the simple collection box is used for recovering the sample, but the collection box device is inconvenient to install and disassemble, the height is not well adjusted, the collection box device cannot be suitable for SHPB experiment devices with different diameters, and the collection box device is complex in sample taking and transferring. On the other hand, when high-speed photographing is required for the entire impact process, the apparatus is required to be transparent and to keep the surface of the photographing position clean in order to obtain a clear image. In the impact process, the flying samples and the destructive substances thereof inevitably generate stains and damages to the surface of the collecting box in different degrees, so that the cleanness of the surface of the shooting position is difficult to ensure, the shooting definition is influenced, and the analysis of the experimental impact process is influenced.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the multifunctional separated Hopkinson pressure bar experiment sample recovery device which is simple in structure, convenient to install and disassemble, adjustable in installation height, capable of realizing protection, recovery and transfer of samples, capable of conveniently photographing the experiment process and suitable for recovering SHPB experiment samples with different diameters.
The technical scheme adopted by the invention is as follows: a multifunctional separated Hopkinson pressure bar experiment sample recovery device comprises a rear collecting box, a recovery drawer, a sleeve, a connecting bolt, a sleeve seat, a top cover plate, a front collecting box, a buckle, a transparent baffle, a photographic support, a screw I, a bolt, a gasket, a threaded slider, a hinge, a screw II, a supporting block and a screw III, wherein the rear collecting box and the front collecting box are combined and then fixed with the sleeve seat through the connecting bolt; the lower ends of the rear collecting box and the front collecting box are respectively provided with a U-shaped groove, the rear part of the rear collecting box is provided with a rectangular opening for placing a push-pull recovery drawer, and the recovery drawer is supported by supporting blocks at two sides in the collecting box; the top cover plate is mounted at the top end of the rear collecting box through a hinge through a screw III, the transparent baffle is mounted on the front collecting box through a buckle through a screw II, the photographic support comprises a fastening bolt, a support and a support seat, and the photographic support is fixedly mounted in the middle of the front collecting box through a screw I; the rear collecting box and the front collecting box are fixed on the horizontal frame through bolts, washers and threaded sliders.
The sleeve, the sleeve seat and the top cover plate are made of transparent engineering plastics, the sleeve seat is fixed on two sides of the combined front collecting box and the combined rear collecting box through bolts to play a role of fixing the front collecting box and the rear collecting box, the sleeve is connected to the sleeve seat through a thread pair, for SHPB experiment devices with different diameters, only the corresponding sleeve needs to be replaced, and the aperture of the through hole of the sleeve needs to be 5-10mm larger than the diameter of the SHPB.
Transparent baffle be high strength, high wear resistant toughened glass material, it uses screw II to install on the collecting box in front through three buckle that can rotate, can conveniently dismantle the change and wash, keep the cleanness on photographic position surface.
The camera support comprises a fastening bolt, a support and a support seat, a telescopic rod is arranged on the support seat and can be adjusted in a telescopic mode up and down and front and back mode, the support is fixed to the top end of the support seat through the fastening bolt, a plurality of degrees of freedom are achieved, and the position and the angle of the support during camera shooting can be adjusted up and down, front and back and rotation.
The front collecting box and the rear collecting box are made of transparent engineering plastics, are high in hardness, can bear high-speed impact and are not easy to deform, the lower ends of the front collecting box and the rear collecting box are respectively provided with a U-shaped groove, the U-shaped grooves are fixed on guide rails in front of and behind the SHPB horizontal frame through bolts, gaskets and threaded sliders, and the mounting height can be conveniently adjusted.
The recovery drawer can be pushed and pulled, when a dropped sample is to be taken out, only the recovery drawer needs to be pulled open, and a rubber pad is adhered to the inner surface of the recovery drawer to play a role in buffering.
The beneficial effects of the implementation of the invention are as follows: the recovery device is simple in structure, convenient to mount and dismount, adjustable in mounting height, capable of conveniently shooting the experiment process, suitable for recovering SHPB experiment samples with different diameters, and capable of achieving protection, recovery and sample transfer.
Drawings
FIG. 1 is a schematic structural diagram of a multifunctional SHPB experiment sample recovery device provided by the invention;
FIG. 2 is a rear view of the multifunctional SHPB experiment sample recovery device provided by the invention;
FIG. 3 is a side sectional view of the multifunctional SHPB experiment sample recovery device provided by the invention;
FIG. 4 is an enlarged view of a U-shaped slot in FIG. 3 showing a bolt-securing position;
figure 5 is an enlarged view of a portion of the hinge connection of figure 2.
In the figure: 1-horizontal frame, 2-rear collecting box, 3-recovery drawer, 4-sleeve, 5-connecting bolt, 6-sleeve seat, 7-top cover plate, 8-front collecting box, 9-buckle, 10-transparent baffle, 11-photographic bracket, 111-fastening bolt, 112-bracket, 113-bracket seat, 12-screw I, 13-bolt, 14-gasket, 15-threaded slider, 16-hinge, 17-screw II, 18-supporting block and 19-screw III.
Detailed description of the invention
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1-5, the multifunctional separated Hopkinson pressure bar experiment sample recovery device comprises a rear collection box 2, a recovery drawer 3, a sleeve 4, a connecting bolt 5, a sleeve seat 6, a top cover plate 7, a front collection box 8, a buckle 9, a transparent baffle 10, a photographic support 11, a screw I12, a bolt 13, a hinge 16 and a support block 18, wherein the rear collection box 2 and the front collection box 8 are combined and then fixedly connected with the sleeve seat 6 through the bolt 5, the outer side of the sleeve seat 6 is provided with threads, the inner side of the sleeve 4 is provided with threads and is connected with the sleeve seat 6 through a thread pair, and a through hole is formed in the middle of the sleeve 4; the lower ends of the rear collecting box 2 and the front collecting box 8 are respectively provided with a U-shaped groove, the rear part of the rear collecting box 2 is provided with a rectangular opening for placing a push-pull recovery drawer 3, and the recovery drawer 3 is supported by supporting blocks 18 at two sides in the collecting box; the top cover plate 7 is mounted at the top end of the rear collecting box 2 through a hinge 16 and a screw III 19, the transparent baffle 10 is mounted on the front collecting box 8 through a buckle 9, the photographic support 11 comprises a fastening bolt 111, a support 112 and a support base 113, and is fixedly mounted in the middle of the front collecting box 8 through a screw I12; the sleeve seat 6 is fixed on two sides of the combined front collecting box 8 and the combined rear collecting box 2 through bolts 5, the front collecting box and the rear collecting box are fixed, the sleeve 4 is screwed on the sleeve seat through a thread pair, for SHPB experimental devices with different diameters, the sleeve 4 is installed only by replacing the corresponding sleeve 4, and the through hole diameter of the sleeve 4 needs to be 5-10mm larger than the SHPB diameter. The transparent baffle 10 is made of high-strength and high-wear-resistance toughened glass, is mounted on the front collecting box 8 through three rotatable buckles 9 by using screws II 17, can be conveniently detached, replaced and cleaned, and keeps the surface of a shooting position clean. The photographic support 11 is fixed on the front collecting box 8 through a screw I12, the photographic support 11 comprises a fastening bolt 111, a support 112 and a support base 113, a telescopic rod is arranged on the support base 113 and can be adjusted in a telescopic mode up and down and back and forth, the support 112 is fixed at the top end of the support base 113 through the fastening bolt 111, and the photographic support has multiple degrees of freedom and can adjust positions and angles in photographing up and down, back and forth and in a rotating mode. The front collecting box 8 and the rear collecting box 2 are made of transparent engineering plastics, are high in hardness, can bear high-speed impact and are not easy to deform, the lower ends of the front collecting box and the rear collecting box are respectively provided with a U-shaped groove, the U-shaped grooves are fixed on guide rails in front of and behind the SHPB horizontal frame 1 through bolts 13, gaskets 14 and threaded sliding blocks 15, and the installation height can be conveniently adjusted. The recovery drawer 3 can be pushed and pulled, and only need pull open when the sample that drops after the experiment will be taken out the recovery drawer can, make things convenient for taking out of sample, it has the rubber pad to paste at recovery drawer internal surface, plays the cushioning effect.
Claims (5)
1. The utility model provides a multi-functional disconnect-type Hopkinson depression bar experiment sample recovery unit, includes back collecting box (2), retrieves drawer (3), sleeve (4), connecting bolt (5), cover cylinder seat (6), lamina tecti (7), preceding collecting box (8), buckle (9), transparency barrier (10), photography support (11), screw I (12), bolt (13), packing ring (14), screw slider (15), hinge (16), screw II (17), supporting shoe (18), screw III (19), its characterized in that: the rear collecting box (2) and the front collecting box (8) are combined and then fixed with the sleeve seat (6) through a connecting bolt (5), the outer side of the sleeve seat (6) is provided with threads, the inner side of the sleeve (4) is provided with threads and is connected with the sleeve seat (6) through a thread pair, and a through hole is formed in the middle of the sleeve seat; the lower ends of the rear collecting box (2) and the front collecting box (8) are respectively provided with a U-shaped groove, the rear part of the rear collecting box (2) is provided with a rectangular opening for placing a push-pull recovery drawer (3), and the recovery drawer (3) is supported by supporting blocks (18) at two sides in the collecting box; the top cover plate (7) is mounted at the top end of the rear collecting box (2) through a hinge (16) and a screw III (19), the transparent baffle (10) is mounted on the front collecting box (8) through a buckle (9) and a screw II (17), and the photographing bracket (11) comprises a fastening bolt (111), a bracket (112) and a bracket seat (113) and is fixedly mounted in the middle of the front collecting box (8) through a screw I (12); the rear collecting box (2) and the front collecting box (8) are fixed on the horizontal frame (1) through bolts (13), washers (14) and threaded sliders (15).
2. The multifunctional separated Hopkinson pressure bar experiment sample recovery device according to claim 1, wherein: the sleeve seat (6) is fixed on two sides of the combined front collecting box (8) and the combined rear collecting box (2) through the connecting bolt (5) to play a role in fixing the front collecting box and the rear collecting box, the sleeve (4) is screwed on the sleeve seat (6) through a thread pair, for SHPB experiment devices with different diameters, the sleeve (4) is installed only by replacing the corresponding sleeve (4), and the aperture of the through hole of the sleeve (4) needs to be 5-10mm larger than the diameter of the SHPB.
3. The multifunctional separated Hopkinson pressure bar experiment sample recovery device according to claim 1, wherein: the transparent baffle (10) is made of high-strength and high-wear-resistance toughened glass, is arranged on the front collecting box (8) through three rotatable buckles (9), can be conveniently detached, replaced and cleaned, and keeps the surface of a shooting position clean.
4. The multifunctional separated Hopkinson pressure bar experiment sample recovery device according to claim 1, wherein: the photographing bracket (11) comprises a fastening bolt (111), a bracket (112) and a bracket base (113), wherein a telescopic rod is arranged on the bracket base (113) and can be adjusted in a telescopic mode up and down and back and forth, the bracket (112) is fixed to the top end of the bracket base (113) through the fastening bolt (111), and the photographing bracket has multiple degrees of freedom and can adjust the position and the angle of photographing up and down, back and forth and rotate.
5. The multifunctional separated Hopkinson pressure bar experiment sample recovery device according to claim 1, wherein: the front collecting box (8) and the rear collecting box (2) are made of transparent engineering plastics, are high in hardness and can bear high-speed impact and are not prone to deformation, the lower ends of the front collecting box and the rear collecting box are respectively provided with a U-shaped groove, and the front collecting box and the rear collecting box are fixed on guide rails in front of and behind the SHPB horizontal frame (1) through bolts (13), gaskets (14) and threaded sliding blocks (15), so that the height of installation can be adjusted conveniently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010009431.XA CN111157371A (en) | 2020-01-06 | 2020-01-06 | Multi-functional disconnect-type Hopkinson depression bar experiment sample recovery unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010009431.XA CN111157371A (en) | 2020-01-06 | 2020-01-06 | Multi-functional disconnect-type Hopkinson depression bar experiment sample recovery unit |
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| Publication Number | Publication Date |
|---|---|
| CN111157371A true CN111157371A (en) | 2020-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010009431.XA Pending CN111157371A (en) | 2020-01-06 | 2020-01-06 | Multi-functional disconnect-type Hopkinson depression bar experiment sample recovery unit |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014100652B3 (en) * | 2014-01-21 | 2015-03-12 | Bundesrepublik Deutschland, Vertreten Durch Den Bundesminister Für Wirtschaft Und Energie, Dieser Vertreten Durch Den Präsidenten Der Bundesanstalt Für Materialforschung Und -Prüfung (Bam) | Temperature control device for a rigidly attached to a specimen sensor |
| CN106198190A (en) * | 2016-07-06 | 2016-12-07 | 合肥工业大学 | A kind of Hopkinson pressure bar experiment sample collection device |
| CN107643210A (en) * | 2017-11-02 | 2018-01-30 | 华北理工大学 | Collection device and application method after Hopkinson pressure bar test rock is broken |
| CN107655744A (en) * | 2017-08-15 | 2018-02-02 | 河海大学 | The explosion-proof supporting arrangement of the more size rock samples of split hopkinson bar and method |
| CN109406314A (en) * | 2018-11-21 | 2019-03-01 | 浙江大学 | A kind of auxiliary device applied to Hopkinson pressure bar |
| CN109916710A (en) * | 2019-04-12 | 2019-06-21 | 中铁三局集团有限公司 | A kind of split hopkinson bar rock sample recyclable device |
-
2020
- 2020-01-06 CN CN202010009431.XA patent/CN111157371A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014100652B3 (en) * | 2014-01-21 | 2015-03-12 | Bundesrepublik Deutschland, Vertreten Durch Den Bundesminister Für Wirtschaft Und Energie, Dieser Vertreten Durch Den Präsidenten Der Bundesanstalt Für Materialforschung Und -Prüfung (Bam) | Temperature control device for a rigidly attached to a specimen sensor |
| CN106198190A (en) * | 2016-07-06 | 2016-12-07 | 合肥工业大学 | A kind of Hopkinson pressure bar experiment sample collection device |
| CN107655744A (en) * | 2017-08-15 | 2018-02-02 | 河海大学 | The explosion-proof supporting arrangement of the more size rock samples of split hopkinson bar and method |
| CN107643210A (en) * | 2017-11-02 | 2018-01-30 | 华北理工大学 | Collection device and application method after Hopkinson pressure bar test rock is broken |
| CN109406314A (en) * | 2018-11-21 | 2019-03-01 | 浙江大学 | A kind of auxiliary device applied to Hopkinson pressure bar |
| CN109916710A (en) * | 2019-04-12 | 2019-06-21 | 中铁三局集团有限公司 | A kind of split hopkinson bar rock sample recyclable device |
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Application publication date: 20200515 |