CN115823973B - Multi-probe positioning and collecting device for testing detonation growth and testing method - Google Patents
Multi-probe positioning and collecting device for testing detonation growth and testing method Download PDFInfo
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- CN115823973B CN115823973B CN202211501545.1A CN202211501545A CN115823973B CN 115823973 B CN115823973 B CN 115823973B CN 202211501545 A CN202211501545 A CN 202211501545A CN 115823973 B CN115823973 B CN 115823973B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention relates to a multi-probe positioning and collecting device for testing detonation growth and a testing method, belongs to the technical field of ammunition engineering, and aims to solve the problems that an existing detonation testing mode cannot realize direct testing and is low in testing accuracy. The invention comprises the following steps: the device comprises a base, a grain limiting base, a probe positioning unit and a test probe; the explosive column limiting base is arranged at the center of the base, and the explosive column to be tested is arranged on the explosive column limiting base; the probe positioning unit is arranged on the base; a plurality of groups of probe positioning units are arranged in the circumferential direction of the grain to be detected; the test probe is fixedly arranged on the probe positioning unit and is abutted against the outer surface of the to-be-tested grain through the probe positioning unit. The invention monitors detonation time of a plurality of monitoring points on the surface of the grain, and further captures the emergent track of detonation waves in the grain to be tested, which are transmitted along the axis and on the side surface of the grain.
Description
Technical Field
The invention relates to the technical field of ammunition engineering, in particular to a multi-probe positioning and collecting device for testing detonation growth and a testing method.
Background
The detonation transfer explosion sequence is an important component in an explosion system, is a functional component for realizing stable detonation of main explosive through a transfer explosion powder column, and is particularly an effective way for realizing miniaturization and safety improvement, and by reducing the size of the transfer explosion powder, the insensitive main explosive is reliably detonated under the smaller transfer explosion powder column.
However, the explosion propagation process has certain complexity, is related to the characteristics of the explosive and the size and structure matching of the explosive, and relates to complex processes of impact initiation, explosion propagation, diffraction, back explosion, local non-detonation and the like of the explosive, which are important in the reliability evaluation and the safety evaluation of the explosion process. In the detonation transfer sequence research, under the impact detonation effect of the small-size transfer explosive column, the detonation growth process in the main charge column is expressed as a two-dimensional effect, and the obvious difference of the reaction rates along the axial direction and the radial direction determines the detonation transfer reliability. The detonation growth characteristics of the main charge under the action of the booster charges with different diameters are accurately mastered and effectively evaluated, and the detonation booster explosive has important significance for scientifically guiding the detonation booster sequence design, the reliability evaluation and the like.
The simplest method for researching the booster effect at present is to judge through the pit state of the steel witness plate after detonation, and comprises the effects of a charging structure, restraint, booster output energy and the like on the booster reliability, but the method lacks knowledge of the corners and the detonation dead zone in the detonation process. Another optical measurement method is a method for observing the detonation wave propagation process and recording the detonation wave propagation track by observing the side surface of the exposed main charge through a high-speed scanning camera. Due to the influence of test environment and air lateral sparse waves, the observed emergence condition of detonation waves on the surface of the main charge is not accurate enough. The method has relatively high requirements on instruments and test environments and inaccurate reflection on the development process of detonation.
Therefore, a new explosion propagation effect testing device is needed to be provided, the influence of the size structure of the explosion propagation medicine column on the detonation propagation of the main charge is researched, and a basis is provided for the size matching of the explosion propagation sequence.
Disclosure of Invention
In view of the above analysis, the present invention aims to provide a multi-probe positioning and collecting device and a testing method for testing detonation growth, which are used for solving the problems that the existing detonation effect testing mode cannot realize direct testing and has low testing accuracy.
The aim of the invention is mainly realized by the following technical scheme:
a multi-probe positioning and acquisition device for testing detonation growth, comprising: the device comprises a base, a grain limiting base, a probe positioning unit and a test probe;
The explosive column limiting base is arranged at the center of the base, and the explosive column to be tested is arranged on the explosive column limiting base; the probe positioning unit is arranged on the base;
a plurality of groups of probe positioning units are arranged in the circumferential direction of the grain to be detected;
the test probe is fixedly arranged on the probe positioning unit and is abutted against the outer surface of the to-be-tested grain through the probe positioning unit.
Further, the probe positioning unit includes: a vertical rotating rod and positioning cross rod assembly; the vertical rotating rod is arranged perpendicular to the base; the positioning cross rod assembly is vertically arranged on the vertical rotating rod.
Further, one end of the test probe is fixed at the end part of the positioning cross rod assembly and is in abutting contact with the to-be-tested grain; and the other end of the test probe is connected with a coaxial cable signal line.
Further, one end of the coaxial cable signal wire is connected with the test probe, and the other end of the coaxial cable signal wire is connected with the RC pulse network generator.
Further, the RC pulse network generator is connected with the dynamic signal acquisition system through a synchronous signal line.
Further, the contact positions of the surface of the grain to be detected and the plurality of test probes are used as monitoring points; the test probe is used for monitoring detonation wave emergent time of the corresponding monitoring point position.
Further, the probe positioning units are arranged in a plurality of groups and are uniformly distributed in the circumferential direction of the grain to be detected.
Further, a probe positioning unit includes a plurality of sets of the positioning rail assemblies.
Further, a plurality of groups of the positioning cross rod assemblies are arranged on the vertical rotating rod in parallel.
The multi-probe positioning and testing method for testing the detonation growth is characterized in that the multi-probe positioning and collecting device for testing the detonation growth is adopted; the test method comprises the following steps:
step 1: installing the grain to be tested on the multi-probe positioning and collecting device for testing detonation growth;
step 2: detonating the grain to be detected;
step 3: monitoring a plurality of monitoring points on the surface of the to-be-tested explosive column through a plurality of test probes.
The technical scheme of the invention can at least realize one of the following effects:
1. according to the invention, the test probe is fixed by adopting the multi-probe positioning and collecting device, the moment that the detonation wave reaches different positions on the surface of the grain to be tested is directly measured by the test probe, and the propagation track of the detonation wave in the grain to be tested along the side axis is captured.
2. According to the multi-probe positioning and collecting device and the testing method for testing the detonation growth, provided by the invention, by utilizing the ionization conduction characteristic of the detonation wave of the explosive, when the detonation wave reaches the monitoring point position of the testing probe, the testing probe can conduct electricity instantly, and pulse electric signals are transmitted to a dynamic signal collecting system through the RC pulse network generator and the cable (coaxial cable signal line and synchronous signal line). According to the invention, the moment that detonation waves reach different positions on the surface of the main explosive column is measured by the multi-probe positioning and collecting device, so that accurate and rapid measurement of the detonation growth process of the main explosive column is realized.
3. According to the multi-probe positioning and collecting device for testing detonation growth, provided by the invention, the detonation wave emergent track can be accurately obtained through monitoring a plurality of points on the surface of the explosive column to be tested by the testing probe, the influence of the size structure of the detonation transfer explosive column on detonation propagation of the main explosive is researched, and a basis is provided for size matching of the detonation transfer sequence.
In the invention, the technical schemes can be mutually combined to realize more preferable combination schemes. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, like reference numerals being used to refer to like parts throughout the several views.
FIG. 1 is a multi-probe positioning and collecting device for testing detonation growth in embodiment 1 of the present invention;
FIG. 2 is a block diagram of a grain limiting base in embodiment 1 of the present invention;
fig. 3 is a structural view of a probe positioning unit in embodiment 1 of the present invention;
FIG. 4 is a top view of the retention rail assembly of embodiment 1 of the present invention;
FIG. 5 is a side view of the retention rail assembly of embodiment 1 of the present invention;
fig. 6 is a schematic structural view of an insulating end of a cross bar in embodiment 1 of the present invention;
FIG. 7 is a schematic view showing the fixing state of the insulating end of the cross bar and the probe in embodiment 1 of the present invention;
Fig. 8 is a schematic diagram of the probe station position on the side surface of the grain in example 1 of the present invention.
Reference numerals:
1-a base; 2-a grain limiting base; a 3-probe positioning unit; 4-a pressure release round hole; 5-arc chute; 6-base legs; 7-a vertical rotating rod; 8-test probes; 9-a coaxial cable signal line; a 10-RC pulse network generator; 11-a synchronization signal line; 12-a dynamic signal acquisition system; 13-a grain to be tested; 14-prefabricating cracks; 15-positioning a cross bar assembly; 16-a connector; 17-positioning a cross bar; 18-a cross bar insulation end; 19-a first limiting piece; 20-springs; 21-an insulating bushing; 22-a first fastening jackscrew; 23-a probe positioning groove; 24-probe routing through holes; 25-an insulating end plug; 26-a second limiting piece; 27-a second fastening jackscrew.
Detailed Description
The following detailed description of preferred embodiments of the invention is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the invention, are used to explain the principles of the invention and are not intended to limit the scope of the invention.
Example 1
In one embodiment of the present invention, a multi-probe positioning and collecting device for testing detonation growth is provided, as shown in fig. 1-8, comprising: the device comprises a base 1, a grain limiting base 2, a probe positioning unit 3 and a test probe 8; the explosive column limiting base 2 is arranged in the center of the base 1, and an explosive column 13 to be tested is arranged on the explosive column limiting base 2; the probe positioning unit 3 is arranged on the base 1; a plurality of groups of probe positioning units 3 are arranged in the circumferential direction of the grain 13 to be detected; the test probe 8 is fixedly arranged on the probe positioning unit 3, and the test probe 8 is abutted against the outer surface of the to-be-tested explosive column 13 through the probe positioning unit 3.
Specifically, as shown in fig. 1, a pressure relief round hole 4 is reserved in the center of the base 1; the explosive column limiting base 2 is fixedly arranged in the pressure relief round hole 4 of the base 1.
As shown in fig. 1, the base 1 is further provided with four circular arc-shaped sliding grooves 5 for installing the probe positioning unit 3, and the circular arc-shaped sliding grooves 5 are uniformly distributed along the circumferential direction of the pressure relief round hole 4.
As shown in fig. 1, a plurality of base legs 6 are provided below the base 1; the base support legs 6 are arranged perpendicular to the base 1 and fixedly connected with the base 1 through welding or bolts; the base feet 6 are used to support the base 1. During testing, the base 1 is horizontally fixed on the ground of a test site through the base support legs 6.
Specifically, the base leg 6 is a telescopic structure; the base foot 6 comprises: an adjusting sleeve and an adjusting inner rod; the inside design of the adjusting sleeve is a threaded hole, the outer surface of the adjusting inner rod is provided with an external thread, the adjusting inner rod is sleeved with the adjusting sleeve through threads, the sleeved length can be adjusted through rotating the adjusting inner rod, and then the whole length of the base support leg 6 is adjusted. The adjusting sleeve is fixedly connected with the base 1, the adjusting inner rod is supported on the ground, and the base 1 can be adjusted to be horizontal when the ground is uneven by adjusting the length of each base supporting leg 6.
As shown in fig. 2, the grain limiting base 2 includes: a disk mounting portion and a cylindrical cartridge fixing portion.
Specifically, the disc mounting part of the explosive column limiting base 2 is arranged in the pressure relief round hole 4 of the base 1. The cylindrical explosive column fixing part is arranged in the center of the disc mounting part, and an explosive column mounting groove is formed in the cylindrical explosive column fixing part; the diameter of the grain mounting groove is equal to the diameter of the cylindrical grain 13 to be measured. The grain 13 to be measured is disposed in the grain mounting groove, and is supported and positioned by the grain mounting groove.
Further, as shown in fig. 2, a plurality of prefabricated cracks 14 are provided on the disc mounting portion of the grain limiting base 2, and the prefabricated cracks 14 are used for preventing the base 1 from being damaged by shock waves generated when the grain 13 to be tested explodes. Specifically, the prefabricated slit 14 includes a plurality of arc-shaped slits distributed along the circumferential direction of the grain limiting base 2 and a plurality of straight-line-shaped slits extending along the radial direction of the grain limiting base 2.
The probe positioning unit 3 is described below:
In one embodiment of the present invention, as shown in fig. 4, the probe positioning unit 3 includes: a vertical rotary rod 7 and a positioning cross bar assembly 15. Specifically, as shown in fig. 4, the vertical rotation lever 7 is installed perpendicular to the base 1; the positioning cross bar assembly 15 is vertically mounted on the vertical rotary bar 7.
In one embodiment of the present invention, the vertical rotation lever 7 includes: an upper cylindrical section, a middle boss and a lower stud section. Specifically, the stud section of the vertical rotating rod 7 is inserted into the circular arc chute 5 on the base 1, the stud section is screwed with the fixing nut, and the vertical rotating rod 7 can be clamped and fixed on the base 1 by screwing the fixing nut; the base 1 is located between the fixing nut and the boss.
Further, the probe positioning unit 3 further includes: a connector 16.
The connecting member 16 is provided with a first mounting hole and a second mounting hole, and the first mounting hole and the second mounting hole are perpendicular to each other.
As shown in fig. 3, the connecting piece 16 is sleeved on the cylindrical section of the vertical rotating rod 7; specifically, a first mounting hole is formed in the connecting piece 16, the vertical rotating rod 7 is inserted and mounted in the first mounting hole of the connecting piece 16, and an insulating bush 21 is arranged between the vertical rotating rod 7 and the connecting piece 16. The connecting piece 16 is sleeved and installed on the vertical rotating rod 7 through the first mounting hole, and can rotate around the axis of the vertical rotating rod 7, the side surface of the connecting piece 16 is provided with a fastening bolt which is communicated with the first mounting hole, and the connecting piece 16 can be fixed on the vertical rotating rod 7 by screwing the fastening bolt.
Further, the positioning rail assembly 15 is mounted on the vertical rotation rod 7 by means of a connection 16.
Specifically, the retention rail assembly 15 is mounted in a second mounting hole of the connector 16. Since the first and second mounting holes are perpendicular, the positioning rail assembly 15 is perpendicular to the vertical rotation rod 7.
Further, as shown in fig. 4 and 5, the positioning rail assembly 15 includes: the positioning cross bar 17, the cross bar insulation end 18, the first stop 19, the spring 20 and the first fastening jackscrew 22.
Specifically, the positioning rail 17 is slidably mounted in the second mounting hole of the connector 16; the second mounting hole is a rectangular hole, the second mounting hole is rectangular, rotation of the positioning cross rod 17 in the second mounting hole can be limited, and the positioning cross rod 17 can slide relative to the connecting piece 16.
Specifically, the first limiting member 19 and the spring 20 are both sleeved on the positioning cross bar 17, as shown in fig. 5. The first limiting piece 19 is provided with a first fastening jackscrew 22, and the first limiting piece 19 and the positioning cross rod 17 can be fixed or slide relatively by screwing or unscrewing the first fastening jackscrew 22. A spring 20 is arranged between the first stop 19 and the connecting piece 16.
In implementation, the length of the positioning cross rod 17 penetrating out of the connecting piece 16 can be adjusted by adjusting the mounting position of the first limiting piece 19 on the positioning cross rod 17, and then the cross rod insulating end 18 is pressed on the surface of the grain 13 to be tested through the spring 20.
Further, as shown in fig. 3, the positioning rail assembly 15 further includes: a second stop 26 and a second fastening thread 27. The second limiting member 26 is disposed at an end of the positioning cross bar 17, and the first limiting member 19 and the second limiting member 26 are disposed at both sides of the connecting member 16. The second limiting piece 26 is provided with a second fastening jackscrew 27, and the second limiting piece 26 and the positioning cross rod 17 can be fixed or slide relatively by screwing or unscrewing the second fastening jackscrew 27. The first and second fastening jackscrews are used to secure the first and second spacing elements 19, 26, respectively, to the positioning rail 17.
Further, as shown in fig. 6 and 7, the cross bar insulating end 18 is provided with a probe routing through hole 24 and a cylindrical insulating end plugging portion 25. The insulating end plug-in part 25 of the cross rod insulating end 18 is matched with the plug-in hole of the positioning cross rod 17, and the cross rod insulating end 18 is plugged and installed at the end part of the positioning cross rod 17 through hole column matching.
Specifically, the test probe 8 is composed of two enameled wires which are mutually wound into a spiral shape, the wound parts of the two enameled wires are mutually insulated, and the other end of the enameled wires is exposed out of the metal wire.
Further, the positioning cross bar 17 and the cross bar insulation end 18 are hollow tubes.
The positioning cross rod 17 is provided with a threading through hole, and the probe routing through hole 24 of the cross rod insulation end 18 is communicated with the threading through hole of the positioning cross rod 17 to form a channel for the test probe 8 to pass through.
Further, the cross bar insulation end 18 is provided with an offset front end surface, and the front end surface is perpendicular to the positioning cross bar 17; a linear probe positioning groove 23 is arranged on the front end face. The probe positioning groove 23 is used to fix the test probe 8 on the front end face of the rail insulating end 18. As shown in fig. 6 and 7, after the end portion of the test probe 8 is penetrated from the probe routing through hole 24, the portion of the test probe 8 extending out of the probe positioning groove 23 is bent backward, and two enamelled wire ends of the end of the test probe 8 are separated and adhered to the side surface of the insulating end 18 of the cross bar by an insulating tape. Specifically, the probe positioning grooves 23 of the plurality of groups of positioning cross bar assemblies 15 of the same probe positioning unit 3 are all installed horizontally, and the offset directions are consistent.
In the implementation process, the test probes 8 are fixedly and closely attached to the side surface of the to-be-tested explosive column 13 through a plurality of probe positioning units 3, one end of the test probes 8, which exposes out a metal wire, penetrates out of the rear end of the positioning cross rod 17 and is connected with the coaxial cable signal wire 9, and a signal input channel of the RC pulse network generator 10 is connected with each test probe 8 through the coaxial cable signal wire 9; the dynamic signal acquisition system 12 is connected with a signal output channel of the RC pulse network generator 10 through a synchronous signal line 11.
By adjusting the mounting positions and the number of the connecting pieces 16 on the vertical rotating rod 7, the mounting height, the positions and the number of the positioning cross bars 17 can be arbitrarily adjusted. By adjusting the direction of the positioning cross bar 17, the axis direction of the positioning cross bar 17 is directed to the heart of the explosion. By adjusting the position of the first stop 19, the length of the positioning rail 17 extending beyond the connector 16 is adjusted. The test probe 8 on the front end surface of the insulating end 18 of the cross rod is tightly contacted with the grain 13 to be tested, and the axial direction of the positioning cross rod 17 is directed to the axial line of the grain 13 to be tested.
As shown in fig. 6 and 7, the test probe 8 passes through the cross bar insulation end 18 and the positioning cross bar 17, the test probe 8 is clamped and fixed in the probe positioning groove 23 on the front end surface of the cross bar insulation end 18, the redundant part is bent backwards, the cross section of the test probe 8 is separately fixed on the side surface of the cross bar insulation end 18 by using an insulating adhesive tape, and the two branches are conducted under the detonation wave ionization effect during the test, so that the detonation moment of a detection point position is monitored.
In one embodiment of the present invention, one end of the test probe 8 is fixed at the end of the positioning cross bar assembly 15, and is in tight contact with the grain 13 to be tested; the other end of the test probe 8 is connected to a coaxial cable signal line 9. One end of the coaxial cable signal wire 9 is connected with the test probe 8, and the other end is connected with the RC pulse network generator 10. The RC pulse network generator 10 is connected with a dynamic signal acquisition system 12 through a synchronous signal line 11.
In one specific embodiment of the present invention, the contact positions between the surface of the grain 13 to be tested and the plurality of test probes 8 are used as monitoring points; the test probe 8 is used for monitoring whether detonation occurs at the corresponding monitoring point. Specifically, as shown in fig. 1, the probe positioning units 3 have four groups and are uniformly distributed in the circumferential direction of the grain 13 to be measured. As shown in fig. 3, one probe positioning unit 3 includes four sets of the positioning rail assemblies 15. Four sets of said positioning cross bar assemblies 15 are mounted in parallel on said vertical rotary bars 7.
In this embodiment, four probe positioning units 3 are installed, and four positioning cross bar assemblies 15 are installed on each probe positioning unit 3, and sixteen positioning cross bar assemblies 15 are total to fix sixteen test probes 8; correspondingly, sixteen monitoring points are arranged on the side surface of the grain 13 to be detected; the location distribution of the monitored points is shown in fig. 8.
Example 2
The invention relates to a multi-probe positioning test method for testing detonation growth, which adopts the multi-probe positioning acquisition device for testing detonation growth in embodiment 1 to test a grain 13 to be tested.
The test method comprises the following steps:
step 1: mounting the grain 13 to be tested on the multi-probe positioning and collecting device for testing detonation growth;
step 2: detonating the to-be-detected explosive column 13;
step 3: a plurality of monitoring points on the surface of the grain 13 to be tested are monitored by a plurality of test probes 8.
In the illustrated step 1, the process of installing the grain 13 to be measured includes:
Step S11: the base 1 is horizontally fixed on the ground of a test field through base legs 6;
Step S12: the explosive column limiting base 2 is arranged in a pressure relief round hole 4 in the center of the base 1, and an explosive column 13 to be tested is arranged in an explosive column mounting groove on the explosive column limiting base 2;
Step S13: the lower end part of the vertical rotating rod 7 is inserted into the circular arc chute 5 of the base 1; a fixing nut is screwed on the stud section at the lower end of the vertical rotating rod 7, and the vertical rotating rod 7 is fixed on the base 1 by screwing the fixing nut; an insulating bush 21 is fitted over the cylindrical section of the upper portion of the vertical rotation lever 7, and the cylindrical section of the vertical rotation lever 7 is inserted into the first mounting hole of the connecting member 16.
Step S14: assembling the positioning rail assembly 15 and slidably mounting the positioning rail assembly 15 on the connector 16;
step S15: mounting the test probe 8 on the positioning rail assembly 15; the positioning cross rod assembly 15 is adjusted, the axis direction of the positioning cross rod assembly 15 points to the axis of the grain 13 to be tested, and the test probe 8 is abutted against the outer surface of the grain 13 to be tested.
Further, in step S14, the assembling process of the positioning rail assembly 15 is as follows:
S14-1, inserting an insulating end inserting part 25 of the insulating end 18 of the cross rod into an inserting hole at one end of the positioning cross rod 17, and installing the insulating end 18 of the cross rod at the end part of the positioning cross rod 17 through column hole matching; rotating the cross bar insulating ends 18 to make the probe positioning grooves 23 on the front end faces thereof horizontal, and the offset directions of the front end faces of the plurality of cross bar insulating ends 18 on the same group of probe positioning units 3 are consistent;
s14-2, sequentially sleeving and installing a first limiting piece 19 and a spring 20 at the other end of the positioning cross rod 17, and installing a first fastening jackscrew 22 on the side surface of the first limiting piece 19; the positioning rail 17 is threaded into a second mounting hole in the connector 16 and the spring 20 is disposed between the connector 16 and the first stop 19.
S14-3: the end part of the positioning cross rod 17 penetrating out of the connecting piece 16 is sleeved with a second limiting piece 26, and a second fastening jackscrew 27 is arranged on the side surface of the second limiting piece 26.
When the first fastening jackscrew 22 is screwed, the first limiting piece 19 is fixedly arranged on the positioning cross rod 17; when the second fastening jackscrew 27 is screwed, the second limiting piece 26 is fixedly arranged on the positioning cross rod 17, and the positioning cross rod 17 is limited through the first limiting piece 19 and the second limiting piece 26, so that the positioning cross rod 17 cannot be separated from the connecting piece 16.
Further, in step S15, the mounting process of the test probe 8 is as follows:
S15-1, the test probe 8 consists of two enameled wires which are mutually wound into a spiral shape, and the parts of the two enameled wires which are wound together are mutually insulated; one end of the test probe 8 sequentially passes through the threading through hole inside the positioning cross bar 17 and the probe wiring through hole 24 of the cross bar insulation end 18, and passes out of the probe wiring through hole 24 of the cross bar insulation end 18.
S15-2, fixing the penetrating part of the test probe 8 in a probe positioning groove 23 on the end face of the insulating end 18 of the cross rod, bending the part of the test probe 8 extending out of the probe positioning groove 23 backwards, separating two enamelled wires at the tail end of the test probe 8 and adhering the enamelled wires on the side face of the insulating end 18 of the cross rod by using an insulating adhesive tape. The other end of the test probe 8 is exposed out of the metal wires and is connected with the coaxial cable signal wire 9 through the two metal wires.
Further, in step S15, the adjustment process of the positioning rail assembly 15 is as follows:
s15-3: adjusting the height and axial direction of the positioning rail assembly 15;
Unscrewing the fastening bolts on the sides of the connecting piece 16, so that the connecting piece 16 can slide along the vertical rotating rod 7 and can rotate around the axis of the vertical rotating rod 7; the dragging connecting piece 16 and the positioning cross rod assembly 15 slide along the axial direction of the vertical rotating rod 7, and the height of the positioning cross rod assembly 15 is adjusted; the rotary connecting piece 16 and the positioning cross rod assembly 15 adjust the axis of the positioning cross rod assembly 15 to point to the axis of the grain 13 to be measured; after the positioning cross bar assembly 15 is adjusted to the required height and direction according to the test requirement, the fastening bolts on the connecting piece 16 are screwed again to fix.
S15-4: the position of the positioning cross rod assembly 15 is adjusted according to the distance between the side surface of the to-be-tested explosive column 13 and the vertical rotary rod 7, so that the test probe 8 is in close contact with the to-be-tested explosive column 13;
first, unscrewing the first fastening jackscrew 22 to enable the first limiting piece 19 to slide along the positioning cross bar 17;
Then, the first limiting piece 19 is moved, the distance between the first limiting piece 19 and the connecting piece 16 is reduced, and the spring 20 is compressed; tightening the first fastening jackscrew 22 to fix the first limiting piece 19 and the positioning cross rod 17;
Finally, under the compressed state of the spring 20, the elastic force of the spring 20 can push the first limiting part 19 to move in the direction away from the connecting part 16, so that the positioning cross rod 17 and the cross rod insulating end 18 are driven to displace in the direction of the to-be-detected explosive column 13, and the test probe 8 on the cross rod insulating end 18 can be abutted against the surface of the to-be-detected explosive column 13.
Further, by adjusting the multiple sets of positioning cross bar assemblies 15, multiple test probes 8 are contacted with multiple monitoring points on the surface of the to-be-tested explosive column 13.
Further, in the step 3, when the monitoring point of the grain 13 to be tested is detonated, the two enamelled wires at the tail end of the test probe 8 are conducted in the detonation ionization environment, and meanwhile, the electric signals can be sequentially transmitted to the RC pulse network generator 10 and the dynamic signal acquisition system 12 through the coaxial cable signal wire 9 and the synchronous signal wire 11, so that the monitoring of the detonation time of a plurality of monitoring points is realized.
Further, in the step 3, after the explosive column 13 to be tested is detonated, the detonation time of a plurality of monitoring points on the outer surface of the explosive column 13 to be tested is monitored through a plurality of test probes 8, so as to realize detection of the detonation process and the explosion propagation process of the explosive column 13 to be tested.
Compared with the prior art, the technical scheme provided by the invention has at least one of the following beneficial effects:
1) The invention provides a multi-probe positioning and collecting device for testing detonation growth, which can randomly adjust the mounting height and the number of positioning cross bars 17 by adjusting the number of vertical rotating rods 7, the number of connecting pieces 16 and the mounting positions of the connecting pieces on the vertical rotating rods 7; the invention can be directly installed on explosion test sites and has enough strength and rigidity for resisting explosion impact.
2) According to the multi-probe positioning and collecting device for testing detonation growth, the prefabricated crack 14 is designed on the explosive column limiting base 2, so that the damage of shock waves to the base during the test is prevented; and only need change the spacing base of grain 2 of and location horizontal pole subassembly 15 can carry out many times experiments, equipment is convenient and the cost is lower.
3) According to the invention, the positioning cross rod assembly 15 can be adjusted in position by arranging the spring 20 and the first limiting piece 19 on the positioning cross rod 17 for pre-tightening and the rotatable design of the connecting piece 16 on the vertical rotating rod 7, and the positioning cross rod assemblies 15 can independently move without interference, so that the multiple test probes 8 can be tightly contacted with corresponding monitoring points on the to-be-tested explosive column 13, and the measurement precision of the multichannel probe is ensured.
4) According to the multi-probe positioning and collecting device for testing detonation growth, the insulating layer is arranged between the probe positioning cross rod and the vertical rotating rod, and the positioning cross rod end is also made of insulating materials, so that inter-channel interference caused by short circuit of the multi-channel probe in a detonation ionization environment can be prevented, and the accuracy of signals is improved. The multi-probe positioning and collecting device for testing detonation growth is made of stainless steel or common carbon steel through surface spray molding, has enough strength and rigidity, and has good corrosion resistance in various atmospheric environments.
5) Compared with the traditional optical shooting method, the method avoids the influence of air sparse waves on the detonation propagation process of the bare charge, acquires the electric signals of the detonation ionization conduction probe to monitor the detonation process, and can more accurately measure the characteristic parameters of the detonation waves.
6) According to the multi-probe positioning and collecting device for testing detonation growth, the positioning cross rod assembly 15 is subjected to position adjustment, so that the detonation evolution process can be monitored according to the detonation process of the to-be-tested explosive grains 13 with different sizes, and the detonation evolution process can be characterized by acquiring a first emergent position, a back detonation diffraction region, a curvature change region (detonation growth region), a stable detonation region, a local non-detonation region (detonation dead zone) and the like, so that the device has better expansibility.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention.
Claims (10)
1. A multi-probe positioning and collecting device for testing detonation growth is characterized by comprising: the device comprises a base (1), a grain limiting base (2), a probe positioning unit (3) and a test probe (8);
A pressure relief round hole (4) is reserved in the center of the base (1); the explosive column limiting base (2) is fixedly arranged in a pressure relief round hole (4) of the base (1), and an explosive column (13) to be tested is arranged on the explosive column limiting base (2);
The probe positioning unit (3) includes: a vertical rotating rod (7) and a positioning cross rod assembly (15);
the base (1) is also provided with a circular arc chute (5) for installing the probe positioning unit (3), and the stud section of the vertical rotating rod (7) is inserted into the circular arc chute (5) on the base (1);
A plurality of prefabricated cracks (14) are formed in the disc mounting part of the explosive column limiting base (2);
a plurality of groups of probe positioning units (3) are arranged in the circumferential direction of the grain (13) to be detected;
The test probe (8) is fixedly arranged on the probe positioning unit (3), and the test probe (8) is abutted against the outer surface of the to-be-tested grain (13) through the probe positioning unit (3).
2. The multi-probe positioning and acquisition device for testing detonation growth according to claim 1, characterized in that the vertical rotation rod (7) is mounted perpendicular to the base (1); the positioning cross rod assembly (15) is vertically arranged on the vertical rotating rod (7).
3. The multi-probe positioning and collecting device for testing detonation growth according to claim 2, wherein one end of the test probe (8) is fixed at the end of the positioning cross rod assembly (15) and is in abutting contact with the grain (13) to be tested; the other end of the test probe (8) is connected with a coaxial cable signal line (9).
4. A multi-probe positioning and collecting device for testing detonation growth according to claim 3, wherein one end of the coaxial cable signal wire (9) is connected with the test probe (8), and the other end is connected with the RC pulse network generator (10).
5. The multi-probe positioning and acquisition device for testing detonation growth according to claim 4, characterized in that the RC pulse network generator (10) is connected with a dynamic signal acquisition system (12) through a synchronization signal line (11).
6. The multi-probe positioning and collecting device for testing detonation growth according to claim 5, wherein the positions of the surface of the grain (13) to be tested, which are contacted with a plurality of the test probes (8), are used as monitoring points; the test probe (8) is used for monitoring detonation wave emergent time of the corresponding monitoring point position.
7. The multi-probe positioning and collecting device for testing detonation growth according to claim 6, wherein a plurality of groups of probe positioning units (3) are arranged and uniformly distributed in the circumferential direction of the to-be-tested grain (13).
8. The multi-probe positioning and acquisition device for testing detonation growth according to any one of claims 2-7, characterized in that one probe positioning unit (3) comprises a plurality of sets of said positioning crossbar assemblies (15).
9. The multi-probe positioning and collecting device for testing detonation growth according to claim 8, wherein a plurality of sets of the positioning cross bar assemblies (15) are mounted on the vertical rotary rod (7) in parallel.
10. A multi-probe positioning test method for testing detonation growth, which is characterized in that the test method adopts the multi-probe positioning acquisition device for testing detonation growth according to any one of claims 1-9; the test method comprises the following steps:
Step 1: mounting a grain (13) to be tested on the multi-probe positioning and collecting device for testing detonation growth;
step 2: detonating a grain (13) to be detected;
step 3: monitoring a plurality of monitoring points on the surface of the to-be-tested explosive column (13) through a plurality of test probes (8).
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102081104A (en) * | 2010-11-26 | 2011-06-01 | 西安天力金属复合材料有限公司 | Device and method for measuring detonating velocity of explosive |
| CN201965146U (en) * | 2010-11-26 | 2011-09-07 | 西安天力金属复合材料有限公司 | Explosive detonating velocity measuring device |
| RU110191U1 (en) * | 2011-05-27 | 2011-11-10 | Общество с ограниченной ответственностью Научно-техническая фирма "Взрывтехнология" | DEVICE FOR DETERMINING THE EXPLOSIVE SUBSTANCE CHARGE DETONATION SPEED (OPTIONS) |
| RU2439481C1 (en) * | 2010-08-02 | 2012-01-10 | Сергей Михайлович Мужичек | Method to estimate completeness of explosive charge detonation and device for its realisation |
| CN205861715U (en) * | 2016-07-31 | 2017-01-04 | 安徽理工大学 | A kind of instrument measuring explosion velocity of explosive |
| CN108871118A (en) * | 2018-07-17 | 2018-11-23 | 湖北三江航天红林探控有限公司 | A kind of explosion velocity of explosive multipoint acquisition system and its application method |
| CN109142668A (en) * | 2018-09-05 | 2019-01-04 | 西安近代化学研究所 | A kind of detonation wave turning performance test methods |
| CN112505347A (en) * | 2020-12-11 | 2021-03-16 | 西安近代化学研究所 | Method for testing detonation velocity of viscous-state explosive |
| CN215727843U (en) * | 2021-09-10 | 2022-02-01 | 海南鑫鹰爆破工程有限公司 | Stone blasting data supervision and evaluation platform |
| CN114509470A (en) * | 2021-12-28 | 2022-05-17 | 西安近代化学研究所 | Photoelectric test system for measuring explosive combustion to detonation |
| CN115165185A (en) * | 2022-06-21 | 2022-10-11 | 西北核技术研究所 | Curved surface explosive load distributed impulse calibration device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10747196B2 (en) * | 2018-04-16 | 2020-08-18 | Hamilton Sundstrand Corporation | Blast wave detector |
-
2022
- 2022-11-28 CN CN202211501545.1A patent/CN115823973B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2439481C1 (en) * | 2010-08-02 | 2012-01-10 | Сергей Михайлович Мужичек | Method to estimate completeness of explosive charge detonation and device for its realisation |
| CN102081104A (en) * | 2010-11-26 | 2011-06-01 | 西安天力金属复合材料有限公司 | Device and method for measuring detonating velocity of explosive |
| CN201965146U (en) * | 2010-11-26 | 2011-09-07 | 西安天力金属复合材料有限公司 | Explosive detonating velocity measuring device |
| RU110191U1 (en) * | 2011-05-27 | 2011-11-10 | Общество с ограниченной ответственностью Научно-техническая фирма "Взрывтехнология" | DEVICE FOR DETERMINING THE EXPLOSIVE SUBSTANCE CHARGE DETONATION SPEED (OPTIONS) |
| CN205861715U (en) * | 2016-07-31 | 2017-01-04 | 安徽理工大学 | A kind of instrument measuring explosion velocity of explosive |
| CN108871118A (en) * | 2018-07-17 | 2018-11-23 | 湖北三江航天红林探控有限公司 | A kind of explosion velocity of explosive multipoint acquisition system and its application method |
| CN109142668A (en) * | 2018-09-05 | 2019-01-04 | 西安近代化学研究所 | A kind of detonation wave turning performance test methods |
| CN112505347A (en) * | 2020-12-11 | 2021-03-16 | 西安近代化学研究所 | Method for testing detonation velocity of viscous-state explosive |
| CN215727843U (en) * | 2021-09-10 | 2022-02-01 | 海南鑫鹰爆破工程有限公司 | Stone blasting data supervision and evaluation platform |
| CN114509470A (en) * | 2021-12-28 | 2022-05-17 | 西安近代化学研究所 | Photoelectric test system for measuring explosive combustion to detonation |
| CN115165185A (en) * | 2022-06-21 | 2022-10-11 | 西北核技术研究所 | Curved surface explosive load distributed impulse calibration device |
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