CN104897724B - A kind of vacuum explosion-proof device tested for explosive material Hopkinson bar - Google Patents
A kind of vacuum explosion-proof device tested for explosive material Hopkinson bar Download PDFInfo
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- CN104897724B CN104897724B CN201510266285.8A CN201510266285A CN104897724B CN 104897724 B CN104897724 B CN 104897724B CN 201510266285 A CN201510266285 A CN 201510266285A CN 104897724 B CN104897724 B CN 104897724B
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- bar
- armored cassette
- cover plate
- rod set
- cassette
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- 239000002360 explosive Substances 0.000 title claims abstract description 47
- 239000000463 material Substances 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 230000003111 delayed effect Effects 0.000 claims 1
- 238000011010 flushing procedure Methods 0.000 claims 1
- 230000033001 locomotion Effects 0.000 abstract description 10
- 230000006378 damage Effects 0.000 abstract description 7
- 230000035939 shock Effects 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 description 10
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- 238000012360 testing method Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 230000009514 concussion Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 229920002379 silicone rubber Polymers 0.000 description 3
- 239000004945 silicone rubber Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005474 detonation Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006854 communication Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
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- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of vacuum explosion-proof device tested for explosive material Hopkinson bar, including transmission bar, cover plate, armored cassette, explosive sample, incident bar, rod set, fixed frame, rod set sealing ring, bar sealing ring, buffer unit, cover plate for sealing pad, window cover plate, exhaust tube, the armored cassette is box body, box body is made up of 4 sides all around and 1 bottom surface, cassette upper end is opening and encloses outward flange with one at opening, respectively with a center oblong openings on former and later two sides of armored cassette, respectively with a central circular opening on the side of left and right two of armored cassette；Respectively it is provided with a rod set, the manhole of left side rod set in the circular open of two sides in left and right of armored cassette and transmission bar is installed, incident bar is installed in the manhole of the right rod set.The present invention can prevent the damage that the shock wave that explosive material is produced after exploding is caused to explosion-protection equipment, additionally it is possible to hinder input lever counter motion, and then pilot system is protected.
Description
Technical field
The invention belongs to explosive wastewater laboratory testing rig technical field, it is related to a kind of vacuum explosion-proof device, more particularly to
A kind of vacuum explosion-proof device tested suitable for Hopkinson bar.
Background technology
Explosive will be through vibrated, impact in production, processing, transport, storage；Armour-piercing, bore etc. make in attack weapon
Used time, to bear the higher Dynamic Loading of loading speed；Under emergency conditions, to be subjected to falling, hit, bullet or fragment
Impact loading etc..During these, the response of explosive first appears as dynamic response, and then influences its detonation property
Matter and detonation property.In order to improve the security of explosive at different conditions, it is necessary to study explosive in high strain-rate dynamic load
Under dynamic mechanical.
Hopkinson bar can survey material 102~104The load-deformation curve of strain rate scope, is that research material is moved
One of most basic experimental method of state mechanical property.Due to the particularity of energetic material, it may fire under percussion
Burn and even explode, so as to damage Hopkinson bar pilot system and dependence test device, or even wound is caused to testing crew
Evil, needs to carry out necessary protection in experiment.Document " a kind of aluminum composition Compressive Mechanical Properties and constitutive relation research " (contains energy
Material, in October, 2007, the 5th phase page 460 of volume 15) in report a kind of steel protection box, the device is mainly used in preventing examination
Test accidental explosion to damage personnel and instrument, but there is following 2 points of deficiencies：First, in confined space, explosive charge
The shock wave produced afterwards passes through multiple reflections, the enhancing of its destructive power, easily causes the destruction of protection box；Second, explosive charge
The shock wave produced afterwards can produce percussion to guide rod, be easily destroyed pilot system.
The content of the invention
In order to overcome shortcomings and deficiencies of the prior art, the present invention provides a kind of explosive material Hopkinson bar that is used for and tested
Vacuum explosion-proof device, vacuum environment causes the shock wave pressure produced after explosive charge to substantially reduce, and then reduces to anti-
The impact of quick-fried device and the reverse impact to input lever, protect pilot system.
A kind of vacuum explosion-proof device tested for explosive material Hopkinson bar that the present invention is provided, including transmission bar
(1), soket head cap screw (3,8), cover plate (4), armored cassette (5), explosive sample (6), incident bar (11), it is characterised in that also wrap
Include rod set (2), fixed frame (7), rod set sealing ring (9), bar sealing ring (10), buffer unit (12), cover plate for sealing pad (13), window
Velar plate (14), exhaust tube (15), the armored cassette (5) are box body, and box body is made up of 4 sides all around and 1 bottom surface,
Cassette upper end is opening and enclosed at opening with one on outward flange (5-1), former and later two sides of armored cassette (5) respectively with one
Respectively with a central circular opening (5-4) on individual center oblong openings (5-3), the side of left and right two of armored cassette (5)；It is anti-
Buffer unit (12) is placed with quick-fried box (5), buffer unit (12) is the rectangular slab with central circular through hole, buffer unit
(12) it is connected by central circular through hole with incident bar (11)；The upper surface of the flange (5-1) of armored cassette (5) passes through interior hexagonal spiral shell
Nail (3) is connected with cover plate (4), and cover plate (4) is square plate, respectively has a manhole, cover plate (4) at 4 angles of square
Cover plate for sealing pad (13) is installed between the flange (5-1) of armored cassette (5), cover plate for sealing pad (13) is to be opened with central square
The square plate of mouth；Former and later two sides of armored cassette (5) are connected by soket head cap screw (8) with fixed frame (7), fixed frame
(7) it is the rectangular slab with center rectangular recess (7-3), 4 angles of rectangle of fixed frame (7) respectively have a circle to lead to
Hole, is machined with oblong openings (7-2), rectangular recess (7-3) on rectangular recess (7-3) bottom surface and scuttle is housed
Plate (14), window cover plate (14) is rectangular slab, and window cover plate (14) is in close contact with armored cassette (5)；The front side of armored cassette (5)
The lower right corner in face is connected with exhaust tube (15), and exhaust tube (15) is cylinder；The circle of two sides in left and right of armored cassette (5) is opened
One rod set (2) is respectively installed, rod set (2) is the plectane with central circular through hole (2-3), is circumferentially added along it in mouth (5-4)
Work, which has in annular groove (2-1), annular groove (2-1), is provided with rod set sealing ring (9), and one is carried along the edge of manhole
Enclose annular boss (2-4), annular boss (2-4) and annular groove (2-1) in the same side of rod set (2), annular boss (2-4) with
Circular open (5-4) gap coordinates, and this one side of rod set (2) is in close contact with the side of armored cassette (5), manhole (2-
3) it is machined with the face of cylinder in annular groove (2-2), annular groove (2-2) and bar sealing ring (10) is installed, the bar of left and right two
Cover in manhole (2-3) coaxial line of (2), the manhole (2-3) of left side rod set (2) and transmission bar (1), the right bar are installed
Incident bar (11) is installed in the manhole (2-3) for covering (2)；Transmission bar (1) and incident bar (11) are equal elongated of diameter
Cylinder, transmission bar (1) and incident bar (11) coaxial line；Explosive sample (6) be cylinder, two end faces respectively with transmission bar
(1) it is in close contact with incident bar (11).
The oblong openings (5-3) of armored cassette (5) front and back sides and oblong openings (7-2) chi of fixed frame (7)
Very little equal, the oblong openings (7-2) of fixed frame (7) are overlapped with oblong openings (5-3) position of armored cassette (5), front and rear side
Two oblong openings (5-3) sizes in face are identical, and symmetrical on vertical plane where transmission bar (1) axis.The buffering
The right flank of the rectangular slab of device (12) is contacted with the right flank of armored cassette (5), and upper surface is contacted with cover plate (4), lower surface
Contacted with the bottom surface of armored cassette (5).The draw ratio of the explosive sample (6) is 1:1~2, explosive sample (6) and incident bar
(11) diameter ratio is 1:1~2, and with incident bar (11) coaxial line.
A kind of vacuum explosion-proof device tested for explosive material Hopkinson bar of the present invention, the technique effect body brought
Present the following aspects：
(1) closed explosion-protection equipment is vacuumized before testing, after high explosive explodes in vacuum environment, shock wave
Pressure is substantially reduced, and then reduces the destruction caused to explosion-protection equipment.
(2) buffer unit is bonded with input lever, buffer unit will not be impacted to the normal work of input lever, but
The counter motion of input lever can be stopped, the heterodromous speed of input lever is reduced, it is therefore prevented that due to the motion of input lever high-speed reverse
The pilot system caused is damaged.
Brief description of the drawings
Fig. 1 is a kind of vacuum explosion-proof device structural representation tested for explosive material Hopkinson bar of the present invention.
Fig. 2 is the structural representation of rod set in the present invention.
Fig. 3 is the structural representation of armored cassette in the present invention.
Fig. 4 is the structural representation of fixed frame in the present invention.
Fig. 5 is the structural representation of cover plate sealing gasket of the present invention.
Label in figure is represented respectively：1st, transmission bar, 2, rod set, 3, soket head cap screw, 4, cover plate, 5, armored cassette, 6, fried
Medicine sample, 7, fixed frame, 8, soket head cap screw, 9, rod set sealing ring, 10, bar sealing ring, 11, incident bar, 12, buffer unit,
13rd, cover plate for sealing pad, 14, window cover plate, 15 exhaust tubes, 2-1, annular groove, 2-2, annular groove, 2-3, manhole, 2-
4th, annular boss, 5-1, flange, 5-2, screwed hole, 5-3, oblong openings, 5-4, circular open, 5-5, screwed hole, 7-1, circle
Shape through hole, 7-2, oblong openings, 7-3 rectangular recess.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples, it is necessary to which explanation is the present invention not office
It is limited to specific examples below, all equal conversion carried out on the basis of technical solution of the present invention are in protection scope of the present invention
It is interior.
As Figure 1-Figure 5, the present embodiment provides a kind of vacuum anti-explosion dress tested for explosive material Hopkinson bar
Put, including transmission bar 1, soket head cap screw 3, soket head cap screw 8, cover plate 4, armored cassette 5, explosive sample 6, incident bar 11, it is special
Levy and be, in addition to rod set 2, fixed frame 7, rod set sealing ring 9, bar sealing ring 10, buffer unit 12, cover plate for sealing pad 13, window
Velar plate 14, exhaust tube 15, the armored cassette 5 are steel box body, and box body is side and 1 by 4 rectangle steel plates all around
Individual steel plate is welded for bottom surface, and cassette upper end is opening and circle an outward flange 5-1, outward flange 5-1 is welded with opening is
Square steel plate with central square opening, flange 5-1 square openings and the pros of the upper edge of the side of armored cassette 5
Shape is docked and welded one week, and a center oblong openings 5-3 is respectively machined with former and later two sides of armored cassette 5, two long
Square aperture 5-3 is equal in magnitude, and the oblong openings 5-3 of leading flank is in the projection of trailing flank and the oblong openings 5- of trailing flank
3 are overlapped, and a central circular opening 5-4, two circular open 5-4 sizes are respectively machined with the side of left and right two of armored cassette 5
Equal, the circular open 5-4 of left surface is overlapped in the projection of right flank with the circular open 5-4 of right flank；Placed in armored cassette 5
There is buffer unit 12, buffer unit 12 is the foam rectangular slab with central circular through hole, the insertion buffering dress of incident bar 11
After the central circular through hole and assembling for putting 12 are finished, the cementing around manhole glues incident bar 11 with buffer unit 12
It is bolted solid；Each at 4 angles of the flange 5-1 of armored cassette 5 upper surface to make a call to a screwed hole 5-5, cover plate 4 is steel square
Plate, is respectively machined with a manhole, the flange 5-1 of armored cassette 5 upper surface at 4 angles of square and places cover plate for sealing
Pad 13, cover plate for sealing pad 13 is the square rubber slab with central square opening, and thickness is 2mm, then again puts cover plate 4
It is placed on cover plate for sealing pad 13, cover plate 4 is fixed on the flange 5-1 of armored cassette 5 by soket head cap screw 3 so that cover plate
The deflection of the rubber slab extruding percent 30 or so of sealing gasket 13, to ensure the sealing of cassette upper end；Before armored cassette 5
A screwed hole 5-2 is respectively machined with latter two side adjacent rectangle opening 5-3 4 angles, fixed frame 7 is long with center
Square groove 7-3 steel rectangular slab, 4 angles of rectangle of fixed frame 7 are respectively machined with a manhole, recessed in rectangle
Oblong openings 7-2 is machined with groove 7-3 bottom surface, window cover plate 14 is glass steel rectangular slab, and window cover plate 14 is
Phaneroplasm, after window cover plate 14 is arranged in the rectangular recess 7-3 of fixed frame 7, then fixed frame 7 is covered before armored cassette 5
On latter two side, fixed frame 7 is connected with armored cassette 5 by soket head cap screw 8 so that window cover plate 14 and armored cassette 5 are tight
Contiguity is touched；The lower right corner of the leading flank of armored cassette 5 is welded with an exhaust tube 15, and exhaust tube 15 is steel cylinder body, drum shaft
Line is vertical with the leading flank of armored cassette 5, and the air inside armored cassette 5 can be flowed to outside armored cassette 5 by exhaust tube 15；It is explosion-proof
One rod set 2 is respectively installed, rod set 2 is with central circular through hole 2-3 in the circular open 5-4 of the side of left and right two of box 5
Steel plectane, be machined with along its circumference in annular groove 2-1, annular groove 2-1 and rod set sealing ring 9 be installed, along circle
The edge of through hole is with circle an annular boss 2-4, annular boss 2-4 and annular groove 2-1 in the same side of rod set 2, convex annular
The inwall H10/g9 gaps of platform 2-4 outer wall and the circular open 5-4 of armored cassette 5 coordinate, this one side and armored cassette of rod set 2
5 side is in close contact, and the manhole 2-3 of rod set 2 axis is vertical with the side of armored cassette 5, manhole 2-3 cylinder
It is machined with face in annular groove 2-2, annular groove 2-2 and bar sealing ring 10 is installed, the manhole 2- of the rod set 2 of left and right two
It is provided with transmission bar 1, the manhole 2-3 of the right rod set 2 and is provided with 3 coaxial lines, the manhole 2-3 of left side rod set 2
Incident bar 11, the outer wall H9/g8 gaps of the manhole 2-3 inwalls of the rod set 2 of left and right two respectively with transmission bar 1 and incident bar 11
Coordinate；Transmission bar 1 and incident bar 11 are the equal slender cylinder of diameter, and material is 2A12 aluminium, and transmission bar 1 is total to incident bar 11
Axis；Explosive sample 6 is cylinder, scribbles lubricating oil on two end faces of cylinder, then explosive sample 6 is clipped in into transmission bar
1 with incident bar 11 in the middle of so that two end faces of sample 6 are in close contact with transmission bar 1 with incident bar 11 respectively.
In the present embodiment, the right flank of the rectangular slab of buffer unit 12 is contacted with the right flank inwall of armored cassette 5, buffering
The upper end of device 12 is contacted with cover plate 4, and lower end is contacted with the bottom surface of armored cassette 5.
The oblong openings 5-3 and fixed frame 7 of the front and back sides of armored cassette 5 oblong openings 7-2 are equal sized, long
Projections of the square aperture 7-2 on the side of armored cassette 5 is overlapped with oblong openings 5-3.
The rectangular recess 7-3 of the thickness ratio fixed frame 7 of the window cover plate 14 big 1mm of depth, window cover plate 14 is filled
Enter after rectangular recess 7-3, the rectangular edges along window cover plate 14 are along a circle room temperature vulcanized silicone rubber is coated, then by fixed frame
7 cover on the side in armored cassette 5, it is ensured that be evenly coated with room temperature vulcanized silicone rubber on the contact surface of window cover plate 14 and armored cassette 5,
Then room temperature vulcanized silicone rubber will be coated on the screw thread of soket head cap screw 8, then fixed frame 7 is fixed on to the side of armored cassette 5
On, to be cooled 24 as a child, it is ensured that the sealing of the front and back sides of armored cassette 5.
The rod set sealing ring 9 and bar sealing ring 10 are that section is circular annulus, and material is rubber, the bar of left and right two
Load in the annular groove 2-2 of set 2 after bar sealing ring 10, transmission bar 1 and incident bar 11 be respectively provided with manhole 2-3,
The inner side of the annulus of two bar sealing rings 10 is in close contact with transmission bar 1 and incident bar 11 respectively, the circle of two bar sealing rings 10
The outside of ring and the annular groove 2-2 of rod set 2 are in close contact, and percent 30 or so compress variation occurs for bar sealing ring 10,
Ensure rod set 2 and the sealing after transmission bar 1 and the assembling of incident bar 11, load in the annular groove 2-1 of the rod set 2 of left and right two
After rod set sealing ring 9, the annular boss 2-4 of rod set 2 is fitted into the circular open 5-4 of the left and right sidewall of armored cassette 5, it is ensured that bar
Sealing ring 9 is covered to be in close contact with the annular groove 2-1 of rod set 2 and the side wall of armored cassette 5 simultaneously, when armored cassette 5 is vacuumized, by
There is pressure differential inside and outside rod set 2, cause rod set 2 to be close on the side wall of armored cassette 5 so that rod set sealing ring 9 occurs hundred
/ 30 or so compress variation, it is ensured that the sealing that armored cassette 5 is connected at the circular open 5-4 of side wall with rod set 2.
The draw ratio of the explosive sample 6 is 1:2, explosive sample 6 is 1 with the diameter ratio of incident bar 11:2, and with entering
The coaxial line of bar 11 is penetrated, explosive sample 6 is in the center for being projected in leading flank rectangle of the leading flank of armored cassette 5.
After a kind of described vacuum explosion-proof device assembling for the experiment of explosive material Hopkinson bar is finished, in explosive sample
Horizontal plane places a high-speed camera where the axis of product 6, and the window of high-speed camera is just to window cover plate 14.
The application method and operation principle of the present invention is as follows：It is a kind of to prevent for the vacuum that explosive material Hopkinson bar is tested
After quick-fried device assembling is finished, it is ensured that the upper end of protection box 5 and all around 4 sides all have good sealing, by vacuum
The interface set of pump is vacuumized on exhaust tube 15, and to the inner space of protection box 5, vacuumizes and vavuum pump is closed after finishing
The valve of interface so that the inside of protection box 5 keeps a vacuum environment, turns off vacuum pump switch.Ensure that high-speed photography is normal
Work, then carries out Hopkinson bar experiment, and stress wave is in incident bar 11 in communication process, due to the bar sealing being in contact with it
Circle 10 and buffer unit 12 be soft material, modulus of elasticity and incident bar 11 are widely different, therefore, to stress wave in incident bar 11
The influence very little caused is propagated, stress wave is loaded by incident bar 11 to explosive sample 6, high-speed camera can be through saturating
Bright window cover plate 14 is shot to the loading procedure of explosive sample 6.When explosive sample 6 explodes in loading procedure
When, the shock wave of generation can not be propagated in vacuum environment, therefore, will not to explosion-protection equipment produce damage, explosive sample 6 it is quick-fried
Fried pressure causes incident bar 11 to be moved with a very high velocity reversal, and buffer unit 12 is bonded on incident bar 11, with incidence
Bar 11 is moved jointly, during 11 positive movement of incident bar, and buffer unit 12 will not be impacted to the motion of incident bar 11, be entered
When penetrating 11 counter motion of bar, buffer unit 12 can be impinged upon on the right side wall of protection box 5, and protection box 5 blocks buffer unit 12
Motion, and then block the counter motion of incident bar 11, considerably reduce the heterodromous speed of incident bar 11, to experiment
System is protected.In addition, explosive sample 6 causes the strong concussion of incident bar 11 after exploding, the upper end of buffer unit 12 with
Cover plate 4 is contacted, and lower end is contacted with the bottom surface of armored cassette 5, and armored cassette can stop the up and down motion of buffer unit, and buffer unit 12
The concussion of incident bar 11 can effectively be stopped, it is therefore prevented that incident bar 11 is due to the flexural deformation of bar caused by strong concussion, it is therefore prevented that
The error of Hopkinson bar experimental test result caused by being deformed due to bar.
A kind of vacuum explosion-proof device tested for explosive material Hopkinson bar of the present invention, can effectively prevent explosive
The damage that the shock wave produced after material blast is caused to explosion-protection equipment, additionally it is possible to hinder input lever counter motion, and then to examination
Check system is protected.
Claims (4)
1. a kind of vacuum explosion-proof device tested for explosive material Hopkinson bar, including transmission bar (1), soket head cap screw
(3,8), cover plate (4), armored cassette (5), explosive sample (6), incident bar (11), it is characterised in that also including rod set (2), fix
Frame (7), rod set sealing ring (9), bar sealing ring (10), buffer unit (12), cover plate for sealing pad (13), window cover plate (14), take out
Tracheae (15)；
The armored cassette (5) is box body, and box body is made up of 4 sides all around and 1 bottom surface, cassette upper end be opening and
With a circle outward flange (5-1) at opening, respectively with a center oblong openings on former and later two sides of armored cassette (5)
Respectively with a central circular opening (5-4) on (5-3), the side of left and right two of armored cassette (5)；
Buffer unit (12) is placed with armored cassette (5), buffer unit (12) is the rectangular slab with central circular through hole, is delayed
Flushing device (12) is connected by central circular through hole with incident bar (11)；The upper surface of the flange (5-1) of armored cassette (5) passes through interior
Hex screw (3) is connected with cover plate (4), and cover plate (4) is square plate, respectively has a manhole at 4 angles of square, is covered
Between plate (4) and the flange (5-1) of armored cassette (5) install cover plate for sealing pad (13), cover plate for sealing pad (13) be with center just
The square plate of square aperture；
Armored cassette (5) former and later two side be connected by soket head cap screw (8) with fixed frame (7), fixed frame (7) for
Respectively there is a manhole at the rectangular slab of center rectangular recess (7-3), 4 angles of rectangle of fixed frame (7), in rectangle
Carried on the bottom surface of groove (7-3) and window cover plate (14), scuttle are housed in oblong openings (7-2), rectangular recess (7-3)
Plate (14) is rectangular slab, and window cover plate (14) is in close contact with armored cassette (5)；The lower right corner of the leading flank of armored cassette (5) connects
Exhaust tube (15) is connected to, exhaust tube (15) is cylinder；It is each in the circular open (5-4) of two sides in left and right of armored cassette (5)
One rod set (2) is installed, rod set (2) is the plectane with central circular through hole (2-3), and annular groove is circumferentially carried along it
Rod set sealing ring (9) is installed in (2-1), annular groove (2-1), along the edge of manhole with a circle annular boss
(2-4), annular boss (2-4) is with annular groove (2-1) in the same side of rod set (2), annular boss (2-4) and circular open
(5-4) gap coordinates, and this one side of rod set (2) is in close contact with the side of armored cassette (5), the cylinder of manhole (2-3)
Carried on face in annular groove (2-2), annular groove (2-2) and bar sealing ring (10), the circle of two rod sets (2) in left and right are installed
Transmission bar (1), the circle of the right rod set (2) are installed in through hole (2-3) coaxial line, the manhole (2-3) of left side rod set (2)
Incident bar (11) is installed in through hole (2-3)；
Transmission bar (1) and incident bar (11) are the equal slender cylinder of diameter, transmission bar (1) and incident bar (11) coaxial line；
Explosive sample (6) is cylinder, and two end faces are in close contact with transmission bar (1) and incident bar (11) respectively.
2. a kind of as claimed in claim 1 be used for the vacuum explosion-proof device that explosive material Hopkinson bar is tested, it is characterised in that
The oblong openings (5-3) and the oblong openings (7-2) of fixed frame (7) of armored cassette (5) front and back sides are equal sized, Gu
Determine the oblong openings (7-2) of frame (7) to overlap with oblong openings (5-3) position of armored cassette (5), two of front and back sides are long
Square aperture (5-3) size is identical, and symmetrical on vertical plane where transmission bar (1) axis.
3. a kind of as claimed in claim 1 be used for the vacuum explosion-proof device that explosive material Hopkinson bar is tested, it is characterised in that
The right flank of the rectangular slab of the buffer unit (12) is contacted with the right flank of armored cassette (5), and upper surface connects with cover plate (4)
Touch, lower surface is contacted with the bottom surface of armored cassette (5).
4. a kind of as claimed in claim 1 be used for the vacuum explosion-proof device that explosive material Hopkinson bar is tested, it is characterised in that
The draw ratio of the explosive sample (6) is 1:1~2, explosive sample (6) is 1 with the diameter ratio of incident bar (11):1~2, and
With incident bar (11) coaxial line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510266285.8A CN104897724B (en) | 2015-05-22 | 2015-05-22 | A kind of vacuum explosion-proof device tested for explosive material Hopkinson bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510266285.8A CN104897724B (en) | 2015-05-22 | 2015-05-22 | A kind of vacuum explosion-proof device tested for explosive material Hopkinson bar |
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| Publication Number | Publication Date |
|---|---|
| CN104897724A CN104897724A (en) | 2015-09-09 |
| CN104897724B true CN104897724B (en) | 2017-08-08 |
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| CN201510266285.8A Expired - Fee Related CN104897724B (en) | 2015-05-22 | 2015-05-22 | A kind of vacuum explosion-proof device tested for explosive material Hopkinson bar |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198190A (en) * | 2016-07-06 | 2016-12-07 | 合肥工业大学 | A kind of Hopkinson pressure bar experiment sample collection device |
| CN106226176B (en) * | 2016-07-07 | 2018-12-25 | 中南大学 | Underwater explosion loading acts on lower rock dynamic mechanical test method |
| CN106290019B (en) * | 2016-10-14 | 2021-02-26 | 安徽理工大学 | Protection engineering damage test system and method under strong impact action |
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| CN112213358B (en) * | 2020-10-19 | 2023-07-25 | 南京理工大学 | Test device for evaluating transportation safety of simple substance explosive in aqueous medium |
| CN113049733A (en) * | 2021-03-11 | 2021-06-29 | 中国人民解放军63921部队 | Test device for testing dynamic mechanical property of energetic material |
| CN113376035B (en) * | 2021-06-19 | 2022-03-04 | 中国人民解放军国防科技大学 | Device and method for testing energy release of active material under different atmospheres |
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| US6741022B2 (en) * | 2000-12-08 | 2004-05-25 | Samsung Sdi Co., Ltd. | Shrinkage band and cathode ray tube comprising the same |
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