CN110132471A - A kind of thin-wall circular cartridge type explosion wave pressure tester and its assembly method - Google Patents
A kind of thin-wall circular cartridge type explosion wave pressure tester and its assembly method Download PDFInfo
- Publication number
- CN110132471A CN110132471A CN201910377506.7A CN201910377506A CN110132471A CN 110132471 A CN110132471 A CN 110132471A CN 201910377506 A CN201910377506 A CN 201910377506A CN 110132471 A CN110132471 A CN 110132471A
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- Prior art keywords
- thin
- centre strut
- walled cylinder
- upper press
- press cover
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0052—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to impact
Abstract
The invention discloses a kind of thin-wall circular cartridge type explosion wave pressure testers, comprising: thin-walled cylinder, centre strut, upper press cover and lower cover；Thin-walled cylinder is set in the periphery of centre strut, therebetween the deformation space of reserved set amount；Upper press cover is identical with lower cover structure, and the cylindrical body of step through-hole is equipped with centered on upper press cover, and the large opening end of upper press cover and lower cover is respectively sleeved at the both ends of thin-walled cylinder；The both ends center of centre strut opens up screw-threaded counterbore along axial direction respectively；In one end that thin-walled cylinder connects with upper press cover, the screw rod end of fastening bolt is threadedly coupled after passing through upper press cover with the screw-threaded counterbore on centre strut, and upper press cover, thin-walled cylinder and centre strut are fixed；In one end that thin-walled cylinder connects with lower cover, the screw cap end of fastening screw is threadedly coupled after passing through lower cover with the screw-threaded counterbore on centre strut, and lower cover, thin-walled cylinder and centre strut are fixed.
Description
Technical field
The present invention relates to impulse detection fields, and in particular to a kind of thin-wall circular cartridge type explosion wave pressure tester and its
Assembly method.
Background technique
After explosive charge to the damage effect of surrounding other than elastic slice is injured, it is mainly reflected in the shock wave pair that explosion generates
Object is injured.Be evaluation explosive charge to the damage effectiveness of target, first is that when research explosive charge shock wave pressure rule
Rule, the rule evaluation explosion prestige to be decayed at any time according to shock wave overpressure peak with shock wave at the decaying of distance and certain point
Power；Second is that dynamic response and extent of the destruction of the effect target under shock loading are directly researched, with the damage fire of simulated target
To evaluate brisance.
The electric measuring system of traditional detection explosive charge shock wave pressure is complex, and due to the damage effect of shock wave
Certain damage may be caused to test macro, members such as pressure sensor etc. is expensive in test macro, in turn
Increase the cost of impulse detection work；Meanwhile the test of traditional simulated target is divided into two kinds: biological assessment method and structure is ruined
Hurt evaluation assessment, biological assessment method higher cost, and need to carry out pathological analysis to biology just obtain damage effectiveness, and ties
Structure is injured in evaluation assessment, and simulated target is deformed or destroyed after by detonation, is tended not to reuse, is caused larger waste.
There is certain limitation in view of the method for both above-mentioned test explosive charge shock wave pressures.Therefore, a kind of cost is selected
Reasonable material and structure are very necessary to evaluate brisance and damage effect.
Summary of the invention
In view of this, the present invention provides a kind of thin-wall circular cartridge type explosion wave pressure tester and its assembly method,
Structure is simple, and the power and damage effect of accurate evaluation explosion wave are capable of according to the deflection of thin-walled cylinder.
A kind of technical solution of tester of the invention are as follows: thin-wall circular cartridge type explosion wave pressure tester, comprising: thin
Wall cylinder, centre strut, upper press cover and lower cover；Thin-walled cylinder is set in the periphery of centre strut, therebetween reserved setting
The deformation space of amount；Upper press cover is identical with lower cover structure, and the cylindrical body of step through-hole, upper press cover are equipped with centered on upper press cover
The both ends of thin-walled cylinder are respectively sleeved at the large opening end of lower cover；The both ends center of centre strut opens up spiral shell along axial direction respectively
Line counterbore；In one end that thin-walled cylinder connects with upper press cover, the screw rod end of fastening bolt is after upper press cover and on centre strut
Screw-threaded counterbore be threadedly coupled, upper press cover, thin-walled cylinder and centre strut are fixed；Connect in thin-walled cylinder with lower cover
One end, the screw cap end of fastening screw is threadedly coupled after passing through lower cover with the screw-threaded counterbore on centre strut, by lower cover, thin
Wall cylinder and centre strut are fixed.
As a preferred embodiment, the variable diameter junction of the step through-hole in the upper press cover is connected using slope surface.
As a preferred embodiment, the centre strut is that the thick variable diameter in intermediate thin both ends is cylindric.
As a preferred embodiment, the wall thickness of the thin-walled cylinder is setting value.
As a preferred embodiment, slope surface section is arranged in the both ends end of the centre strut, with upper press cover and lower cover
The slope surface of interior step through-hole cooperates.
As a preferred embodiment, the slope surface Duan Shangjun at the centre strut both ends is carved with V-shaped groove structure.
A kind of technical solution of the assembly method of tester of the invention are as follows: thin-wall circular cartridge type explosion wave pressure test
The assembly method of device, be respectively adopted upper press cover, in lower cover step through-hole slope surface by the both ends of thin-walled cylinder to center branch
It is squeezed in the V-shaped groove at the both ends of column, the V word for making the both ends of thin-walled cylinder form shredded form and be pressed into centre strut both ends
In shape groove, meanwhile, the both ends of centre strut are interference fitted with step through-hole in upper press cover and lower cover respectively, to realize
The both ends of the end at thin-walled cylinder both ends and centre strut are fixed, it is ensured that the both ends of thin-walled cylinder are in when it is hit
The both ends of heart pillar are not fallen off.
The utility model has the advantages that
(1) the configuration of the present invention is simple, each building block are all made of common components, and centre strut is designed as intermediate thin
And the shape that both ends are thick, be conducive to when thin-walled cylinder is fastened on centre strut as thin-walled cylinder prearrangement of deformation amount space；Center branch
Column both ends separately design the slope surface shunk to axle center, design " V " type groove in slope surface, are conducive to for being fixed at the both ends of thin-walled cylinder
The both ends of centre strut.
(2) tester of the invention assembly is easy to use, test is reliable, climate condition does not influence；Test of the invention
Device is at low cost, especially more convenient to the pressure test of the dynamic blast shock wave of a wide range of multi-measuring point.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of tester of the present invention.
Fig. 2 is the assembling figure of tester of the present invention.
Fig. 3 is the sectional view of tester of the present invention.
Fig. 4 is centre strut figure of the invention, (a) main view, (b) cross-sectional view, (c) top view.
Fig. 5 is upper press cover (or lower cover) figure of the invention, (a) main view, (b) cross-sectional view, (c) top view.
Fig. 6 is fastening bolt figure of the invention, (a) main view, (b) cross-sectional view.
Fig. 7 is fastening screw figure of the invention, (a) main view, (b) cross-sectional view.
Fig. 8 is thin-wall circular sketch drawing of the invention, the main view before (a) assembly, the main view after (b) assembling, before (c) assembling
Top view, (d) assemble after top view.
Fig. 9 is explosion experiments site pressure tester artwork of the present invention.
Figure 10 is that the present invention moves quick-fried testing ground pressure tester artwork.
Wherein, 1- thin-walled cylinder, 2- centre strut, 3- upper press cover, 4- lower cover, 5- fastening bolt, 6- fastening screw
Specific embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
Present embodiments provide a kind of thin-wall circular cartridge type explosion wave pressure tester and its assembly method, structure letter
It is single, the power and damage effect of accurate evaluation explosion wave are capable of according to the deflection of thin-walled cylinder.
As shown in figures 1-8, which includes: thin-walled cylinder 1, centre strut 2, upper press cover 3 and lower cover 4, thin-wall circular
Cylinder 1 is set in the periphery of centre strut 2, and upper press cover 3 is identical with 4 structure of lower cover, introduces by taking upper press cover 3 as an example, and upper press cover 3 is
Center is equipped with the cylindrical body of step through-hole, and the variable diameter junction of the step through-hole is connected using slope surface, upper press cover 3 and pushing
The large opening end of lid 4 is respectively sleeved at the both ends of thin-walled cylinder 1；The both ends center of centre strut 2 opens up screw thread along axial direction respectively
Counterbore, in one end that thin-walled cylinder 1 connects with upper press cover 3, the screw rod end of fastening bolt 5 pass through after upper press cover 3 with centre strut 2
On screw-threaded counterbore be threadedly coupled, upper press cover 3, thin-walled cylinder 1 and centre strut 2 are fixed；In thin-walled cylinder 1 and push
One end that lid 4 connects, the screw cap end of fastening screw 6 are threadedly coupled after passing through lower cover 4 with the screw-threaded counterbore on centre strut 2,
Lower cover 4, thin-walled cylinder 1 and centre strut 2 are fixed.
Specifically: thin-walled cylinder 1 uses the preferable metal material of plasticity, such as aluminium, copper material, presets wall according to the actual situation
Thickness, for meeting light weight and the high requirement of engineering of intensity simultaneously；Centre strut 2 use rigid material, in order to thin-walled cylinder 1
After assembly, convenient for being thin-walled cylinder 1 there are the space of compressive deformation, centre strut 2 is set as the thick variable diameter circle in intermediate thin both ends
Column.Meanwhile the both ends of centre strut 2 in order to in upper press cover 3 and lower cover 4 step through-hole cooperate, both ends outer
It is respectively equipped with and faces section and slope surface section directly, the maximum gauge section that the corresponding column body segment of section is center pillar 2 is faced at both ends directly, faces section directly
Both ends be connected respectively with slope surface section, wherein the both ends the slope surface Duan Yuqi end face at 2 both ends of centre strut connects respectively, both ends
The slope surface Duan Shangjun in portion is carved with V-shaped groove structure.
When assembly, using the slope surface of step through-hole in upper press cover 3, lower cover 4 by the both ends of thin-walled cylinder 1 to center branch
It is squeezed in the V-shaped groove at the both ends of column 2, the both ends of thin-walled cylinder 1 is made to form shredded form and is pressed into 2 both ends of centre strut
In V-shaped groove, meanwhile, the both ends of centre strut 2 are interference fitted with step through-hole in upper press cover 3 and lower cover 4 respectively, from
And realize and be fixed the both ends of the end at 1 both ends of thin-walled cylinder and centre strut 2, thin-walled cylinder 1 when it being avoided to be hit
Both ends and the both ends of centre strut 2 fall off, influence the precision of test result；The periphery of the screw cap end of fastening bolt 5 and fastening
The outer peripheral surface of screw rod 6 is respectively equipped with two or more and faces directly, convenient for the clamping installation of tool when assembly；The screw rod end of fastening screw 6
For being inserted into pedestal, which is fixed.
Before test, according to the impact of setting material and the deflection and explosion wave that set wall thickness calibration thin-walled cylinder 1
One-to-one relationship between amount, when test, when shock is on thin-walled cylinder 1, thin-walled cylinder 1 can generate phase
The deformation answered, pressure more large deformation is bigger, reflects certain bits by measuring the maximum deformation quantity of 1 setting position of thin-walled cylinder
Set the momentum value of the explosion wave at place, and then the power and damage effect of accurate evaluation explosion wave.
As shown in figure 9, when carrying out static detonation shock wave pressure test, centered on quick-fried source (burst point), according to setting
Measuring distance interval, which is laid on the concentric circles for setting different-diameter, tester passes through fastening screw 6
Bar portion is inserted vertically into underground and is fixed, and thin-walled cylinder 1 is exposed to ground or more, ignites quick-fried source, and explosion wave, which successively impacts, to be set
The tester being scheduled on the concentric circles of different-diameter measures the momentum that different testers are subject to respectively, and then according to different concentric
The momentum size that tester is subject on circle evaluates the power and damage effect of explosion wave.
As shown in Figure 10, when carrying out dynamic blast shock wave pressure test, due to not knowing for quick-fried source drop point (burst point)
Property, it is laid, i.e., is laid on the node of each grid on a large scale using groined type grid at drop point in estimating for quick-fried source
The tester measures distance of each tester with respect to burst point according to practical burst point after explosion again, obtains blast impulse wave field, respectively
The momentum that different testers are subject to is measured, and then evaluates explosion punching according to the momentum size that tester on different concentric circles is subject to
Hit the power and damage effect of wave.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (7)
1. a kind of thin-wall circular cartridge type explosion wave pressure tester characterized by comprising thin-walled cylinder (1), centre strut
(2), upper press cover (3) and lower cover (4)；Thin-walled cylinder (1) is set in the periphery of centre strut (2), therebetween reserved setting
The deformation space of amount；Upper press cover (3) is identical with lower cover (4) structure, and the cylinder of step through-hole is equipped with centered on upper press cover (3)
The large opening end of body, upper press cover (3) and lower cover (4) is respectively sleeved at the both ends of thin-walled cylinder (1)；The two of centre strut (2)
End center opens up screw-threaded counterbore along axial direction respectively；In one end that thin-walled cylinder (1) connects with upper press cover (3), fastening bolt (5)
Screw rod end passes through upper press cover (3) and is threadedly coupled afterwards with the screw-threaded counterbore on centre strut (2), by upper press cover (3), thin-walled cylinder
(1) it is fixed with centre strut (2)；In one end that thin-walled cylinder (1) connects with lower cover (4), the nut of fastening screw (6)
End be threadedly coupled afterwards with the screw-threaded counterbore on centre strut (2) across lower cover (4), by lower cover (4), thin-walled cylinder (1) and
Centre strut (2) is fixed.
2. thin-wall circular cartridge type explosion wave pressure tester as described in claim 1, which is characterized in that the upper press cover
(3) the variable diameter junction of the step through-hole in is connected using slope surface.
3. thin-wall circular cartridge type explosion wave pressure tester as claimed in claim 2, which is characterized in that the centre strut
(2) cylindric for the thick variable diameter in intermediate thin both ends.
4. thin-wall circular cartridge type explosion wave pressure tester as described in claim 1, which is characterized in that the thin-walled cylinder
(1) wall thickness is setting value.
5. thin-wall circular cartridge type explosion wave pressure tester as claimed in claim 2 or claim 3, which is characterized in that the center
The slope surface cooperation of step through-hole in the setting of both ends end the slope surface section, with upper press cover (3) and lower cover (4) of pillar (2).
6. thin-wall circular cartridge type explosion wave pressure tester as claimed in claim 5, which is characterized in that the centre strut
(2) the slope surface Duan Shangjun at both ends is carved with V-shaped groove structure.
7. a kind of assembly method of thin-wall circular cartridge type explosion wave pressure tester, it uses pressure as claimed in claim 6
Power tester, which is characterized in that the slope surface of upper press cover (3), the interior step through-hole of lower cover (4) is respectively adopted by thin-walled cylinder
(1) both ends are squeezed into the V-shaped groove at the both ends of centre strut (2), and the both ends of thin-walled cylinder (1) is made to form shredded form
And be pressed into the V-shaped groove at centre strut (2) both ends, meanwhile, the both ends of centre strut (2) respectively with upper press cover (3) and under
The interior step through-hole interference fit of gland (4), to realize two by the end at thin-walled cylinder (1) both ends and centre strut (2)
Side pressure fastens, and the both ends of thin-walled cylinder (1) and the both ends of centre strut (2) fall off when it being avoided to be hit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910377506.7A CN110132471B (en) | 2019-05-07 | 2019-05-07 | Thin-wall cylindrical explosion shock wave pressure tester and assembling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910377506.7A CN110132471B (en) | 2019-05-07 | 2019-05-07 | Thin-wall cylindrical explosion shock wave pressure tester and assembling method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN110132471A true CN110132471A (en) | 2019-08-16 |
| CN110132471B CN110132471B (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910377506.7A Active CN110132471B (en) | 2019-05-07 | 2019-05-07 | Thin-wall cylindrical explosion shock wave pressure tester and assembling method thereof |
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Cited By (3)
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| CN110987263A (en) * | 2019-11-28 | 2020-04-10 | 北京航星机器制造有限公司 | Impact overload force measuring mechanism and measuring method |
| CN114812902A (en) * | 2022-04-27 | 2022-07-29 | 北京理工大学 | Punching type explosion shock wave impulse tester and layout method thereof |
| CN116183083A (en) * | 2023-03-03 | 2023-05-30 | 西北核技术研究所 | Near-ground omni-directional pressure sensor and shock wave measurement system |
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|---|---|
| CN110132471B (en) | 2020-05-08 |
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