CN111982450A - Energetic metal impact test device - Google Patents
Energetic metal impact test device Download PDFInfo
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- CN111982450A CN111982450A CN202010900091.XA CN202010900091A CN111982450A CN 111982450 A CN111982450 A CN 111982450A CN 202010900091 A CN202010900091 A CN 202010900091A CN 111982450 A CN111982450 A CN 111982450A
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 114
- 239000002184 metal Substances 0.000 title claims abstract description 114
- 238000009863 impact test Methods 0.000 title claims abstract description 24
- 238000002347 injection Methods 0.000 claims abstract description 121
- 239000007924 injection Substances 0.000 claims abstract description 121
- 230000007246 mechanism Effects 0.000 claims abstract description 47
- 238000012360 testing method Methods 0.000 claims abstract description 39
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 238000002485 combustion reaction Methods 0.000 claims abstract description 23
- 238000004146 energy storage Methods 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000001737 promoting effect Effects 0.000 claims description 2
- 238000005507 spraying Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 34
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 239000007769 metal material Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004401 flow injection analysis Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004297 night vision Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The invention provides an energetic metal impact test device which comprises a test bed, a spraying mechanism arranged on the test bed and a detection assembly arranged on the test bed, wherein the spraying mechanism comprises a spraying mechanism body and a spraying mechanism body; a first impact bin and a second impact bin are arranged on the table top of the test bed, and a first stress piece is arranged in the first impact bin; a second stressed part is arranged in the second impact bin; the injection mechanism comprises a first injection pipe and a second injection pipe which are used for injecting high-pressure airflow; the outlet end of the first injection pipe is aligned with the first stress piece, and the energy-containing metal block can be pushed by high-pressure air flow to impact the first stress piece; the outlet end of the second injection pipe is aligned with the second stress piece, and a collision rod which is pushed by high-pressure air flow to collide the energy-containing metal block is arranged in the second injection pipe in a sliding manner; the detection assembly is used for detecting the flash intensity generated by the impact crushing combustion of the energy-containing metal block in the first impact bin and is also used for detecting the temperature value generated by the impact crushing combustion of the energy-containing metal block in the second impact bin.
Description
Technical Field
The invention belongs to the technical field of energetic material performance testing, and particularly relates to an energetic metal impact test device.
Background
Energetic metal materials such as zirconium-based amorphous alloy can be crushed and combusted under high-speed impact, so that intense light and temperature values are generated, the material is an ideal material for manufacturing advanced weaponry such as armor-piercing bullets, and at present, the research on energetic metal materials is in a high-speed development stage, technicians are exploring various performance indexes through continuous tests, however, as the impact crushing process of the energy-containing metal material is accompanied by the scattering of a large amount of crushed objects, the temperature value of the crushing combustion of the energy-containing metal material cannot be detected by adopting the conventional thermocouple device, moreover, the strong light generated along with the instant combustion of the flame is enough to cause the human eyes or night vision instruments to be blinded for a short time, therefore, the detection difficulty of the flash intensity generated by the impact crushing combustion is higher, and the judgment precision of the two characteristics of the energy-containing metal material is insufficient at present, so that the development and application progress of the energy-containing metal material is influenced.
Disclosure of Invention
The invention aims to provide an energy-containing metal impact test device, and aims to solve the problems that in the prior art, impact crushing combustion temperature values and flash intensity of energy-containing metal materials are difficult to detect, and detection precision is low.
In order to achieve the purpose, the invention adopts the technical scheme that: provided is an energetic metal impact test device, including:
the test bed is characterized in that a first impact bin and a second impact bin are arranged on the table top, wherein a light transmission window is arranged on the side wall of the first impact bin, and a first stress piece is arranged inside the first impact bin; a second stress piece is arranged in the second impact bin and used for fixing the energy-containing metal block;
the injection mechanism is arranged on the test bed, is used for connecting an air source and generating high-pressure air flow, and comprises a first injection pipe and a second injection pipe which are used for injecting the high-pressure air flow; the outlet end of the first injection pipe penetrates into the first impact bin and is aligned with the first stress piece, the first injection pipe is used for filling the energy-containing metal block and can push the energy-containing metal block to be injected into the first impact bin through high-pressure airflow to impact the first stress piece; the outlet end of the second injection pipe penetrates into the second impact bin and is aligned with the second stress piece, a collision rod is arranged in the second injection pipe in a sliding mode, and the collision rod can impact the energetic metal block arranged on the second stress piece under the pushing of high-pressure air flow;
the detection assembly is arranged on the test bed and used for detecting the flash intensity generated by the collision and crushing combustion of the energy-containing metal block in the first collision bin through the light-transmitting window and detecting the temperature value generated by the collision and crushing combustion of the energy-containing metal block in the second collision bin.
As another embodiment of the application, the injection mechanism further comprises two pressure cylinders respectively arranged on the test bed, the two pressure cylinders are respectively used for connecting an air source, and outlets of the two pressure cylinders are respectively connected with inlets of the first injection pipe and the second injection pipe; the pressure cylinder is connected with an energy storage assembly in a sliding mode along the axial direction of the pressure cylinder, the energy storage assembly has an energy storage state that the energy storage assembly is compressed along with the increase of air pressure when air is filled into the pressure cylinder, and also has an energy release state that the energy storage assembly is expanded along with the decrease of the air pressure when high-pressure air flow is discharged through the first injection pipe or the second injection pipe.
As another embodiment of the application, the energy storage assembly comprises a spring pressing cylinder plug and an elastic piece; the elastic pressing cylinder plug is connected with the pressure cylinder in a sliding mode along the axial direction of the pressure cylinder, and the peripheral wall of the elastic pressing cylinder plug is in sealing contact with the inner wall of the pressure cylinder; the elastic piece is arranged in the pressure cylinder, one end of the elastic piece is connected with the inner end wall of the pressure cylinder far away from the outlet of the pressure cylinder, and the other end of the elastic piece is connected with the elastic pressing cylinder plug.
As another embodiment of the present application, the first injection pipe includes a first valve port section connected to the injection mechanism, a boosting section with one end butted with the first valve port section, a first sliding section, and a slider; one end of the first sliding section is butted with the boosting section, the end is used for filling an energy-containing metal block, and the other end of the first sliding section penetrates into the first impact bin and is aligned with the first stress piece; the sliding block is connected with the boosting section in a sliding mode along the axial direction of the boosting section, a first plunger is arranged at one end of the sliding block, the first plunger has a first state of being in sealed insertion connection with the first valve port section when gas is filled into the injection mechanism, and also has a second state of slipping off the first valve port section when the air pressure in the injection mechanism reaches a preset value; the other end of slider is equipped with the push rod, and when first plunger was in first state, the push rod was used for with contain can the metal block butt, and when first plunger was in the second state, the push rod was used for promoting to contain can the metal block and removes in first section of sliding.
As another embodiment of this application, the internal diameter of boosting section is greater than the internal diameter of first valve port section and first glide phase, is equipped with a plurality of exhaust grooves that link up its both ends on the slider, is in the second state at first plunger, and when the slider slides under the promotion of high-pressure air current to the end wall butt with first glide phase, a plurality of exhaust grooves will boost section and first glide phase intercommunication.
As another embodiment of the present application, the second injection pipe includes a second port section connected to the injection mechanism and a second slip section having one end butted against the second port section, the other end of the second slip section penetrates into the second impact bin and is aligned with the second force receiving member, and the inner diameter of the second slip section is larger than that of the second port section; one end of the impact rod, which deviates from the second impact bin, is provided with a second plunger, the second plunger has a connection state of being in sealed insertion connection with the second valve port section when gas is filled into the injection mechanism, and the second plunger also has a free state of slipping off from the second valve port section when the air pressure in the injection mechanism reaches a preset value.
As another embodiment of the application, a first lining plate is arranged in the first impact bin, a first groove is formed in the first lining plate, and the first stress piece is arranged in the first groove; and a second liner plate is arranged in the second impact bin, a second groove is formed in the second liner plate, and a second stress piece is arranged in the second groove.
As another embodiment of the present application, the first force-receiving member is in sliding contact with a groove wall of the first groove, and a first pressure sensor is disposed between the first force-receiving member and a groove bottom of the first groove; the second stress piece is in sliding contact with the groove wall of the second groove, and a second pressure sensor is arranged between the second stress piece and the groove bottom of the second groove.
As another embodiment of the present application, the walls of both the first and second impingement plenums are connected to exhaust valves.
Furthermore, the detection assembly comprises an infrared thermal imager and an illuminometer which are arranged on the test bed; the detection end of the thermal infrared imager is aligned with the light-transmitting window; and the sensing end of the illuminometer penetrates through the side wall of the second impact bin and extends into the second impact bin.
The energetic metal impact test device provided by the invention has the beneficial effects that: compared with the prior art, the energetic metal impact test device has the advantages that energetic metal blocks are filled in the first injection pipe, the energetic metal blocks are fixed on the second stressed member, then the gas source is started to introduce gas into the injection mechanism and high pressure is formed in the injection mechanism, the high-pressure gas is released into the first injection pipe and the second injection pipe to form high-pressure gas flow, the energetic metal blocks filled in the first injection pipe are injected into the first impact bin at high speed under the pushing of the high-pressure gas flow and impact on the first stressed member to generate crushing combustion, the detection assembly detects the flash intensity generated by instantaneous combustion through the light-transmitting window, and the energetic metal blocks are injected into the first impact bin through the high-pressure gas flow, so that no other obstacles influencing light rays exist in the first impact bin after the energetic metal blocks impact and crush combustion, the detection accuracy of the flash intensity value is high, and the lance in the second injection pipe produces high-speed motion under high-pressure air current's promotion, thereby carry out high-speed striking to containing can metal block to locating on the second atress piece, thereby make containing can the metal block at second striking storehouse broken burning, adopt high-speed lance to contain can the metal block mode of striking, because the momentum of lance is big, consequently can make containing can the broken energy of striking of metal block carry out abundant release, detection component is through detecting the instantaneous temperature value in the second striking storehouse simultaneously, thereby obtain containing can the instantaneous high temperature value that the broken burning of striking of metal block produced, the measuring accuracy is high, whole testing process is simple and convenient, the operation is safe and reliable.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic perspective view of an energetic metal impact test apparatus provided in an embodiment of the present invention;
FIG. 2 is a schematic diagram of a side view structure of an energetic metal impact test apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is an enlarged view of a portion of the structure shown at B in FIG. 3;
FIG. 5 is an enlarged view of a portion of the structure at C in FIG. 3;
FIG. 6 is an enlarged view of a portion of the structure shown in FIG. 3 at D;
FIG. 7 is a schematic perspective view of a slider used in an embodiment of the present invention;
fig. 8 is a partially enlarged structural view at E in fig. 3.
In the figure: 1. a test bed; 11. a first impingement bin; 110. a light transmissive window; 111. a first force-receiving member; 112. a first liner plate; 113. a first pressure sensor; 12. a second impingement bin; 121. a second force-receiving member; 122. a second liner plate; 1221. a card sleeve; 123. a second pressure sensor; 124. a threaded support rod; 1241. a card slot; 125. a third pressure sensor; 126. sealing a slip ring; 13. an exhaust valve; 2. an injection mechanism; 20. a pressure cylinder; 21. a first injection pipe; 210. a slider; 2101. a first plunger; 2102. a push rod; 2103. an exhaust groove; 211. a first valve port section; 212. a boosting section; 213. a first slip section; 22. a second injection pipe; 220. a ram; 2201. a second plunger; 221. a second port section; 222. a second slip section; 23. an energy storage assembly; 231. the cylinder plug is pressed in a springing way; 232. an elastic member; 233. an elastic sealing steel ring; 3. a detection component; 31. a thermal infrared imager; 32. an illuminometer; 4. a booster pump; 5. a one-way valve; 6. a two-position three-way electromagnetic valve; 7. a barometer; 8. an energetic metal block.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 3, an energetic metal impact test apparatus according to the present invention will now be described. The energetic metal impact test device comprises a test bed 1, a spraying mechanism 2 arranged on the test bed 1 and a detection assembly 3 arranged on the test bed 1; the table board of the test bed 1 is provided with a first impact bin 11 and a second impact bin 12, the side wall of the first impact bin 11 is provided with a light transmission window 110, and a first stress piece 111 is arranged inside the first impact bin; a second stress element 121 is arranged inside the second impact bin 12, and the second stress element 121 is used for fixing the energy-containing metal block 8; the injection mechanism 2 is used for connecting an air source and generating high-pressure air flow and comprises a first injection pipe 21 and a second injection pipe 22 for injecting the high-pressure air flow; the outlet end of the first injection pipe 21 penetrates into the first impact bin 11 and is aligned with the first stress piece 111, the first injection pipe 21 is used for filling the energy-containing metal block 8, and the energy-containing metal block 8 can be pushed by high-pressure airflow to be injected into the first impact bin 11 to impact the first stress piece 111; the outlet end of the second injection pipe 22 penetrates into the second impact bin 12 and is aligned with the second stressed member 121, a striker 220 is slidably arranged in the second injection pipe 22, and the striker 220 can impact the energetic metal block 8 arranged on the second stressed member 121 under the pushing of high-pressure air flow; the detection assembly 3 is used for detecting the flash intensity generated by the impact crushing combustion of the energetic metal block 8 in the first impact chamber 11 through the light-transmitting window 110, and is also used for detecting the temperature value generated by the impact crushing combustion of the energetic metal block 8 in the second impact chamber 12.
It should be noted that the gas source is a high-pressure nitrogen source, and can continuously charge nitrogen into the injection mechanism 2 until the pressure value in the injection mechanism 2 reaches a preset value, by arranging an electromagnetic switch valve or an explosion-proof valve or other valve bodies between the inside of the injection mechanism 2 and the inlets of the first injection pipe 21 and the second injection pipe 22, when the pressure in the injection mechanism 2 is lower than the preset value, the electromagnetic switch valve or the explosion-proof valve is in a locked state, and when the pressure in the injection mechanism 2 reaches or exceeds the preset value, the electromagnetic switch valve is automatically opened or the explosion-proof valve is opened, so that the high-pressure gas in the injection mechanism 2 is instantly discharged into the first injection pipe 21 and/or the second injection pipe 22, and a high-pressure gas flow is generated.
In addition, the size of the energetic metal block 8 filled in the first injection pipe 21 should be matched with the inner diameter of the first injection pipe 21, and it is preferable that the energetic metal block 8 can slide freely in the first injection pipe 21 just to ensure that the energetic metal block 8 can move at a high speed in the first injection pipe 21 under the push of the high-pressure air flow, the peripheral wall of the striker 220 should also abut against the inner wall of the second injection pipe 22, and the striker can slide freely in the second injection pipe 22 to ensure that the energetic metal block 8 can slide at a high speed in the second injection pipe 22 under the push of the high-pressure air flow, and the energetic metal block 8 can be fixed on the second stressed member 121 in an adhesion manner.
Compared with the prior art, the energetic metal impact test device provided by the invention has the advantages that the energetic metal block 8 is filled in the first injection pipe 21, the energetic metal block 8 is fixed on the second stressed member 121, then the gas source is started to introduce gas into the injection mechanism 2 and form high pressure in the injection mechanism 2, the high pressure gas is released into the first injection pipe 21 and the second injection pipe 22 to form high pressure gas flow, the energetic metal block 8 filled in the first injection pipe 21 is injected into the first impact bin 11 at high speed under the pushing of the high pressure gas flow and impacts the first stressed member 111 to generate crushing combustion, the detection assembly 3 detects the flash intensity generated by instantaneous combustion through the light-transmitting window 110, and as the energetic metal block 8 is injected into the first impact bin 11 through the high pressure gas flow, no other obstacles influencing light rays exist in the first impact bin 11 after the energetic metal block 8 impacts the crushing combustion, therefore, the accuracy of the detected flash strength value is high, the striker 220 in the second injection pipe 22 moves at a high speed under the pushing of the high-pressure air flow, so that the energy-containing metal block 8 arranged on the second stress part 121 is impacted at a high speed, the energy-containing metal block 8 is crushed and combusted in the second impact bin 12, the mode that the energy-containing metal block 8 is impacted by the striker 220 moving at a high speed is adopted, the momentum of the striker 220 is large, so that the impact crushing energy of the energy-containing metal block 8 can be fully released, and meanwhile, the instantaneous high temperature value generated by the impact crushing and combustion of the energy-containing metal block 8 is obtained by detecting the instantaneous temperature value in the second impact bin 12 by the detection component 3.
As a specific embodiment of the energetic metal impact test device provided by the present invention, please refer to fig. 3, the injection mechanism 2 further includes two pressure cylinders 20 respectively disposed on the test bed 1, the two pressure cylinders 20 are respectively used for connecting to an air source, and outlets of the two pressure cylinders 20 are respectively connected to inlets of the first injection pipe 21 and the second injection pipe 22; the pressure cylinder 20 is connected with an energy storage assembly 23 in a sliding mode along the axial direction of the pressure cylinder, the energy storage assembly 23 has an energy storage state that the pressure cylinder is compressed along with the increase of air pressure when air is filled into the pressure cylinder 20, and has an energy release state that the pressure cylinder is expanded along with the decrease of air pressure when high-pressure air is discharged through the first injection pipe 21 or the second injection pipe 22.
Provide high-pressure gas power for first injection pipe 21, second injection pipe 22 respectively through two pressure tube 20 to can detect respectively containing can the broken burning instantaneous temperature value of striking or flash intensity of metal block 8, the detection of two kinds of performances does not influence each other, improves and uses the flexibility. The energy storage component 23 is arranged in the pressure cylinder 20, when gas is introduced into the pressure cylinder 20 from a gas source, the energy storage component 23 is pressurized to store energy (the gas containing space in the pressure cylinder 20 is increased), when the high-pressure gas flow is injected into the first injection pipe 21 or the second injection pipe 22, the gas discharge speed is far higher than the speed of the gas source introduced into the pressure cylinder 20, therefore, the pressure of the high-pressure gas flow is smaller and smaller, the energy is released through the energy storage component 23, the gas containing space in the pressure cylinder 20 is reduced due to the extension of the energy storage component 23 in the process of releasing the energy, the pressure drop speed of the high-pressure gas flow can be reduced, the sufficient pushing force of the high-pressure gas flow on the energy-containing metal block 8 or the impact rod 220 is ensured, the impact speed is increased, the impact energy of the energy-containing metal block 8 can be released more sufficiently, and the test accuracy is.
In this embodiment, please refer to fig. 1 and fig. 2, a booster pump 4 is disposed on the test bed 1, an inlet of the booster pump 4 is used for connecting an air source, an outlet of the booster pump 4 is connected to air inlets of two pressure cylinders 20 respectively (an outlet pipeline of the booster pump 4 is connected to a two-position three-way electromagnetic valve 6, two outlets of the two-position three-way electromagnetic valve 6 are connected to air inlets of the two pressure cylinders 20 respectively), a check valve 5 is disposed between the two pressure cylinders 20 and the booster pump 4 in a penetrating manner (the check valve 5 is serially disposed between the two-position three-way electromagnetic valve 6 and the two pressure cylinders 20 respectively), and an outlet pipeline. On one hand, the booster pump 4 ensures that the air pressure charged into the pressure cylinder 20 is sufficient, on the other hand, the check valve 5 prevents the high-pressure air in the pressure cylinder 20 from flowing backwards, and the air pressure in the pressure cylinder 20 can be intuitively obtained through the barometer 7, so that whether the test occurrence condition (high-pressure air flow injection pressure) meets the set condition is verified, and the accuracy of the test result is judged.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 3, the energy storage assembly 23 includes a spring-loaded cylinder plug 231 and an elastic member 232; wherein, the cylinder plug 231 is slidably connected with the pressure cylinder 20 along the axial direction of the pressure cylinder 20, and the peripheral wall is in sealing contact with the inner wall of the pressure cylinder 20; the elastic member 232 is disposed in the pressure cylinder 20, and has one end connected to the inner end wall of the pressure cylinder 20 away from the outlet thereof and the other end connected to the cylinder stopper 231.
Note that the air inlet of the pressure cylinder 20 is located between the plunger 231 and the outlet end of the pressure cylinder 20 (the connection end with the first injection pipe 21 or the second injection pipe 22). When the pressure cylinder 20 is inflated, the elastic cylinder plug 231 extrudes the elastic member 232 and slides in the pressure cylinder 20 in the direction away from the air inlet along with the increase of the air pressure in the pressure cylinder 20 until the air pressure in the pressure cylinder 20 reaches a preset value, the elastic member 232 also obtains elastic potential energy matched with the air pressure value, and when the high-pressure air flow rushes into the first injection pipe 21 or the second injection pipe 22 to form the high-pressure air flow, the elastic member 232 begins to extend due to the decrease of the air pressure in the pressure cylinder 20, so that the elastic cylinder plug 231 is pushed to extrude the air in the pressure cylinder 20 to achieve the effect of compensating the air pressure in the pressure cylinder 20, and the pressure value of the high-pressure air flow in the first injection pipe 21 or the second injection pipe 22 is ensured to be sufficient.
In this embodiment, referring to fig. 3 and 6, the circumferential wall of the elastic pressing cylinder plug 231 is provided with a plurality of grooves, an elastic sealing steel ring 233 is sleeved in the grooves, the outer annular surface of the elastic sealing steel ring 233 is in sliding contact with the inner circumferential wall of the pressure cylinder 20, and the inner annular surface or the side wall is in contact with the groove bottom wall or the groove side wall of the grooves. Through setting up elastic seal steel ring 233, both realized the sealed between the inner wall of suppressing a section of thick bamboo stopper 231 and pressure cylinder 20, can also utilize the low characteristic of coefficient of friction between the metal, reduce the sliding resistance of suppressing a section of thick bamboo stopper 231, reduce the energy loss that elastic component 232 release energy process produced on suppressing a section of thick bamboo stopper 231.
As a specific implementation manner of the embodiment of the present invention, referring to fig. 3 and fig. 4, the first injection pipe 21 includes a first valve port section 211 connected to the injection mechanism 2, a boosting section 212 with one end butted with the first valve port section 211, a first sliding section 213, and a slider 210; wherein, one end of the first sliding section 213 is butted with the boosting section 212, and the end is used for filling the energetic metal block 8, and the other end passes through the side wall of the first impact bin 11 and is aligned with the first force bearing piece 111; the sliding block 210 is connected with the boosting section 212 in a sliding mode along the axial direction of the boosting section 212, one end of the sliding block 210 is provided with a first plunger 2101, the first plunger 2101 has a first state of being in sealed insertion connection with the first valve port section 211 when gas is filled into the injection mechanism 2, and also has a second state of slipping off from the first valve port section 211 when the air pressure in the injection mechanism 2 reaches a preset value; the other end of the slider 210 is provided with a push rod 2102, when the first plunger 2101 is in the first state, the push rod 2102 is used for abutting against the energy-containing metal block 8, and when the first plunger 2101 is in the second state, the push rod 2102 is used for pushing the energy-containing metal block 8 to move in the first sliding section 213.
The first valve port section 211 is used for sealing and inserting the first plunger 2101 and the first valve port section 211 when the injection mechanism 2 is inflated, so that the first injection pipe 21 is in a blocking state, it should be noted that the first plunger 2101 is made of rubber, and is in interference fit with the first valve port section 211, when the air pressure inside the injection mechanism 2 exceeds a preset value, the air pressure thrust force borne by the first plunger 2101 is greater than the fit acting force between the first plunger 2101 and the first valve port section 211, at this time, the first plunger 2101 slides off from the first valve port section 211, the air inside the injection mechanism 2 is injected into the boosting section 212, and pushes the sliding block 210 to slide in the boosting section 212, and pushes the energy-containing metal block 8 to slide in the first sliding section 213 through the push rod, and simultaneously, the high-pressure air flow forms a thrust force to the energy-containing metal block 8 after entering the first sliding section 213, until the energy-containing metal block 8 is pushed by the high-pressure air flow to eject the first sliding section 213 at a high speed to impact the first force-receiving member 111, that is, during the acceleration of the energy-containing metal block 8 from rest to start, the energy-containing metal block 8 is subjected to a double thrust (a thrust exerted thereon by the slider 210 sliding in the boost section 212 through the push rod 2102 and a thrust exerted thereon by the high-pressure air flow passing through the slider 210), therefore, the starting acceleration can be improved, after the high-speed moving state is rapidly reached, the sliding block 210 stops sliding after sliding to the tail end (the end part butted with the first sliding section 213) of the boosting section 212, at the moment, the energy-containing metal block 8 is driven by the high-pressure air flow to move at high speed independently until the energy-containing metal block impacts the first stress piece 111, by the auxiliary pushing of the sliding block 210 in the boosting section 212, the energetic metal block 8 can be quickly reached to the preset speed, therefore, the whole length of the first injection pipe 21 can be shortened, the using amount of high-pressure gas is reduced, the operation difficulty is reduced, and the test accuracy is improved.
Referring to fig. 4 and 7, as a specific implementation manner of the embodiment of the present invention, an inner diameter of the boost section 212 is larger than inner diameters of the first valve port section 211 and the first sliding section 213, the slider 210 is provided with a plurality of exhaust grooves 2103, when the first plunger 2101 is in the second state, the slider 210 abuts against an end wall of the first sliding section 213, and the plurality of exhaust grooves 2103 communicate the boost section 212 with the first sliding section 213.
After the air pressure in the injection mechanism 2 exceeds a preset value, the first plunger 2101 slides off the first valve port section 211 and enters the boosting section 212 together with the slider 210, because the inner diameter of the boosting section 212 is larger than that of the first valve port section 211, a gap for passing high-pressure air flow is formed between the first plunger 2101 and the inner wall of the boosting section 212, and further the high-pressure air flow passes through each exhaust groove 2103 and enters the first sliding section 213 after passing through the slider 210, so that the high-pressure air flow applies thrust to the energetic metal block 8, and the slider 210 applies thrust to the energetic metal block 8 through the push rod 2102 under the pushing of the high-pressure air flow, so that the energetic metal block 8 is quickly started, because the inner diameter of the boosting section 212 is also larger than that of the first sliding section 213, the slider 210 slides to the tail end of the boosting section 212 and abuts against the end wall of the first sliding section 213, and the high-pressure air flow still passes through the slider 210 through the plurality of exhaust grooves 2103 and enters the first sliding section 213 to continuously push the energetic metal block 8, the structure is simple and reliable, and the accelerating effect of the energy-containing metal block 8 is good.
As a specific implementation manner of the embodiment of the present invention, referring to fig. 3 and 5, the second injection pipe 22 includes a second valve port section 221 connected to the injection mechanism 2 and a second sliding section 222 with one end abutting against the second valve port section 221, the other end of the second sliding section 222 passes through the sidewall of the second impact bin 12 and is aligned with the second force receiving member 121, and the inner diameter of the second sliding section 222 is larger than the inner diameter of the second valve port section 221; the end of the ram 220 facing away from the second impact chamber 12 is provided with a second plunger 2201, and the second plunger 2201 has a connection state of being in sealed insertion with the second valve port section 221 when the gas is filled into the injection mechanism 2, and also has a free state of slipping off the second valve port section 221 when the gas pressure in the injection mechanism 2 reaches a preset value.
When the injection mechanism 2 is inflated, the second plunger 2201 is in a connected state, when the air pressure inside the injection mechanism 2 reaches and exceeds a preset value, the second plunger 2201 slips with the second valve port section 221 under high-pressure impact and enters the second slipping section 222 along with the striker 220, the striker 220 continuously pushes the second slipping section 222 at a high speed under the action of high-pressure air flow and collides with the energy-containing metal block 8 arranged on the second stress part 121, the momentum of the striker 220 is large, the impact force on the energy-containing metal block 8 is sufficient, the impact crushing combustion energy of the energy-containing metal block 8 can be released more sufficiently, and the detection precision is improved.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 3, a first lining plate 112 is disposed in the first impact chamber 11, a first groove is disposed on the first lining plate 112, and the first stress member 111 is disposed in the first groove; a second lining plate 122 is arranged in the second impact bin 12, a second groove is formed in the second lining plate 122, and a second stress element 121 is arranged in the second groove. Through first welt 112, second welt 122 improves first striking storehouse 11, the intensity in second striking storehouse 12, and with first welt 112, second welt 122 is as final atress piece, ensure test process safe and reliable, in addition through setting up first recess respectively, the first atress piece 111 of second recess correspondence installation, second atress piece 121, can guarantee first atress piece 111, the rigidity of second atress piece 121 is reliable, avoid the dislocation and cause unable accurate striking to contain can metal block 8, improve test process's stability.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 3, in which the first force-receiving member 111 is in sliding contact with a groove wall of the first groove, and a first pressure sensor 113 is disposed between the first force-receiving member 111 and the groove bottom of the first groove; the second force-bearing member 121 is in sliding contact with a groove wall of the second groove, and a second pressure sensor 123 is arranged between the second force-bearing member 121 and the groove bottom of the second groove. Instantaneous impact force between the energy-containing metal block 8 and the first stress piece 111 and the second stress piece 121 can be respectively transmitted to the first pressure sensor 113 and the second pressure sensor 123, and whether the impact force meets the set standard or not is judged according to pressure values obtained by the first pressure sensor 113 and the second pressure sensor 123, so that whether the test process meets the impact set condition or not is judged, and the test result is accurate and reliable.
In the present embodiment, referring to fig. 8, a threaded support rod 124 is threadedly connected to an end of the second impact chamber 12 away from the second injection pipe 22, a first end of the threaded support rod 124 extends into the second impact chamber 12 perpendicular to the plate surface of the second liner plate 122, and a clamping groove 1241 is formed in a peripheral wall of the extending end; the plate surface of the second liner plate 122 facing the threaded support rod 124 is provided with a third pressure sensor 125, the periphery of the third pressure sensor 125 is provided with a clamping sleeve 1221 integrally formed with the second liner plate 122 or welded, the clamping sleeve 1221 is clamped into the clamping groove 1241, and the end of the threaded support rod 124 extends into the clamping sleeve 1221 and abuts against the third pressure sensor 125.
The length of the threaded rod supporting rod 124 extending into the second impact bin 12 can be adjusted by rotating the threaded supporting rod 124, so that the clamping relation between the clamping sleeve 1221 and the clamping groove 1241 drives the second lining plate 12 to adjust the position, the internal space of the second impact bin 12 is adjusted, the flash intensity generated by impact, crushing and combustion of metal blocks 8 contained in the illuminometer 32 in environments with different space sizes is enabled, the measuring accuracy and flexibility are improved, and the reference value of detection data is higher; in addition, when the energetic metal block 8 is impacted, crushed and combusted, the air pressure in the second impact bin 12 rises instantly, so that expansion pressure can be generated on the second lining plate 122, the third pressure sensor 125 can measure the pressure generated on the second lining plate 122 when the energetic metal block 8 is impacted and crushed, the actual space size of the second impact bin 12 is obtained according to the adjusting position of the threaded supporting rod 124, the capacity of the energetic metal block 8 released when the energetic metal block is impacted, crushed and combusted is calculated, the result is used as an auxiliary reference, the measurement accuracy of the flash intensity generated by the impact crushing of the energetic metal block 8 can be judged, and the high reliability of test data is ensured.
In addition, referring to fig. 8, the sealing slip ring 126 is embedded in the peripheral wall of the second liner plate 122, so that the air pressure generated when the energetic metal block 8 is impacted, crushed and combusted can be prevented from leaking between the second liner plate 122 and the inner wall of the second impact bin 12, and the detection accuracy of the instantaneous expansion pressure generated when the energetic metal block is impacted, crushed and combusted can be ensured to be high.
Referring to fig. 1, as a specific implementation manner of the embodiment of the present invention, the chamber walls of the first collision chamber 11 and the second collision chamber 12 are both connected with an exhaust valve 13. Because high-pressure air current can get into first striking storehouse 11, second striking storehouse 12 through first injection pipe 21, second injection pipe 22, can be discharged first striking storehouse 11 and the inside gas of second striking storehouse 12 fast through setting up discharge valve 13 here, avoid first striking storehouse 11 and second striking storehouse 12 internal gas pressure too high and influence the test result, ensure experimental accuracy.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 3, the detecting assembly 3 includes a thermal infrared imager 31 and an illuminometer 32 disposed on the test bed 1; wherein, the detection end of the thermal infrared imager 31 is aligned with the light-transmitting window 110; the sensing end of the light meter 32 extends through the side wall of the second impact chamber 12 into the interior of the second impact chamber 12.
Because the temperature value generated by crushing and burning the energy-containing metal block 8 under high-speed impact is extremely high, and the crushed objects scatter in the crushing process, the temperature value cannot be detected through a conventional thermocouple device, the detection end (usually a photosensitive element of an infrared detector) of the thermal infrared imager 31 is aligned to the light-transmitting window 110, so that infrared light emitted from the light-transmitting window 110 is received, an infrared thermograph is obtained, the combustion temperature value is judged through the infrared thermograph, and the test result is accurate and reliable; the light intensity is detected in the second impact bin 12 through the detection end (optical sensor) of the illuminometer 32, and the signal is transmitted to the illuminometer 32 for collection and recording, so that the flash intensity generated when the energetic metal block 8 is impacted and crushed for combustion is obtained, the test process is convenient, and the test result accuracy is high.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Contain ability metal impact test device, its characterized in that includes:
the test bed is characterized in that a first impact bin and a second impact bin are arranged on the table top, wherein a light transmission window is arranged on the side wall of the first impact bin, and a first stress piece is arranged inside the first impact bin; a second stress piece is arranged inside the second impact bin and used for fixing the energy-containing metal block;
the injection mechanism is arranged on the test bed, is used for being connected with an air source and generating high-pressure air flow, and comprises a first injection pipe and a second injection pipe which are used for injecting the high-pressure air flow; the outlet end of the first injection pipe penetrates into the first impact bin and is aligned with the first stress piece, the first injection pipe is used for filling energetic metal blocks, and the energetic metal blocks can be pushed by the high-pressure airflow to be injected into the first impact bin to impact the first stress piece; the outlet end of the second injection pipe penetrates into the second impact bin and is aligned with the second stressed part, a collision rod is arranged in the second injection pipe in a sliding mode, and the collision rod can impact an energy-containing metal block arranged on the second stressed part under the pushing of the high-pressure airflow;
the detection assembly is arranged on the test bed and used for penetrating through the light-transmitting window to detect the metal blocks containing energy, the flash intensity generated by the impact crushing combustion in the first impact bin is also used for detecting the metal blocks containing energy, and the temperature value generated by the impact crushing combustion in the second impact bin is also used for detecting the metal blocks containing energy.
2. The energetic metal impact test device according to claim 1, wherein the injection mechanism further comprises two pressure cylinders respectively arranged on the test bed, the two pressure cylinders are respectively used for connecting a gas source, and outlets of the two pressure cylinders are respectively connected with inlets of the first injection pipe and the second injection pipe;
the pressure cylinder is connected with an energy storage assembly in a sliding mode along the axial direction of the pressure cylinder, the energy storage assembly has an energy storage state that the pressure cylinder is compressed along with the increase of air pressure when air is filled into the pressure cylinder, and also has an energy release state that the pressure cylinder is expanded along with the decrease of air pressure when the high-pressure air flows through the first injection pipe or the second injection pipe and is discharged.
3. The energetic metal impact test apparatus according to claim 2, wherein the energy storage assembly comprises:
the elastic pressing cylinder plug is connected with the pressure cylinder in a sliding mode along the axial direction of the pressure cylinder, and the peripheral wall of the elastic pressing cylinder plug is in sealing contact with the inner wall of the pressure cylinder;
and the elastic piece is arranged in the pressure cylinder, one end of the elastic piece is connected with the inner end wall of the pressure cylinder, which is far away from the outlet of the pressure cylinder, and the other end of the elastic piece is connected with the elastic pressing cylinder plug.
4. The energetic metal impact test apparatus according to claim 1, wherein the first injection tube comprises:
the first valve port section is connected with the injection mechanism;
one end of the boosting section is butted with the first valve port section;
one end of the first sliding section is butted with the boosting section and used for filling an energy-containing metal block, and the other end of the first sliding section penetrates into the first impact bin and is aligned with the first stress piece;
the sliding block is connected with the boosting section in a sliding mode along the axial direction of the boosting section, a first plunger is arranged at one end of the sliding block, the first plunger has a first state of being in sealed insertion connection with the first valve port section when gas is filled into the injection mechanism, and also has a second state of slipping off from the first valve port section when the gas pressure in the injection mechanism reaches a preset value; the other end of slider is equipped with the push rod first plunger is in when first state, the push rod is used for with contain can the metal block butt, when first plunger is in the second state, the push rod is used for promoting to contain can the metal block and is in first section of sliding removes.
5. The energetic metal impact test device according to claim 4, wherein the boost section has an inner diameter greater than the inner diameters of the first valve port section and the first slip section, the slide block is provided with a plurality of vent grooves extending through both ends thereof, and when the first plunger is in the second state and the slide block slides to abut against the end wall of the first slip section under the urging of the high pressure gas flow, the plurality of vent grooves communicate the boost section with the first slip section.
6. The energetic metal impact test apparatus according to claim 1, wherein the second injection tube comprises:
a second port section connected to the injection mechanism;
a second sliding section, one end of which is butted with the second valve port section, and the other end of which penetrates into the second impact bin and is aligned with the second stress element, wherein the inner diameter of the second sliding section is larger than that of the second valve port section;
and a second plunger is arranged at one end of the impact rod, which deviates from the second impact bin, and has a connection state of being in sealed insertion connection with the second valve port section when gas is filled into the injection mechanism and a free state of slipping off from the second valve port section when the air pressure in the injection mechanism reaches a preset value.
7. The energetic metal impact test device according to claim 1, wherein a first lining plate is arranged in the first impact bin, a first groove is formed in the first lining plate, and the first stress member is arranged in the first groove; and a second liner plate is arranged in the second impact bin, a second groove is formed in the second liner plate, and the second stress piece is arranged in the second groove.
8. The energetic metal impact test device according to claim 7, wherein the first force-receiving member is in sliding contact with a groove wall of the first groove, and a first pressure sensor is arranged between the first force-receiving member and a groove bottom of the first groove; the second stress piece is in sliding contact with the groove wall of the second groove, and a second pressure sensor is arranged between the second stress piece and the groove bottom of the second groove.
9. The energetic metal impact test device according to claim 1, wherein vent valves are connected to the walls of the first impact chamber and the second impact chamber.
10. The energetic metal impact test device according to any one of claims 1 to 9, wherein the detection assembly comprises:
the thermal infrared imager is arranged on the test bed, and the detection end is aligned with the light-transmitting window;
and the illuminometer is arranged on the test bed, and the sensing end penetrates through the side wall of the second impact bin and extends into the second impact bin.
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Cited By (1)
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