CN102004120A - Test instrument of flame sensitivity of loading material for initiating explosive device - Google Patents
Test instrument of flame sensitivity of loading material for initiating explosive device Download PDFInfo
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- CN102004120A CN102004120A CN2010102760951A CN201010276095A CN102004120A CN 102004120 A CN102004120 A CN 102004120A CN 2010102760951 A CN2010102760951 A CN 2010102760951A CN 201010276095 A CN201010276095 A CN 201010276095A CN 102004120 A CN102004120 A CN 102004120A
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- stepper motor
- test
- worktable
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- magnetic induction
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Abstract
The invention discloses a test instrument of the flame sensitivity of a loading material for an initiating explosive device, belonging to the field of performance test of the loading material for the initiating explosive device. Based on the existing HGY-1 type flame sensitivity instrument, a height adjusting device comprising a ball screw pair and a stepper motor, a control instrument, a magnetic induction block, a zero-position sensor and a limit sensor are additionally arranged, and the ball screw pair is fixedly connected with a worktable for placing samples of the loading materials for the initiating explosive device to be tested and the stepper motor; and under the matching of the magnetic induction block, the zero-position sensor and the limit sensor, a control instrument can send various driver instructions to the stepper motor, so that the stepper motor rotates according to the step length given by the instructions, thereby driving the worktable to reach the set test position. By using the test instrument of the invention, the problem of automatic control of the height of loading material samples in the sensitivity test of the loading material for the initiating explosive device is solved, the adjustment precision and test precision of the ignition height are improved, the zero-distance ignition is also realized, and the test instrument can test the flame sensitivity for the loading materials with low flame sensitivity, simultaneously has the advantages of simple structure and reliable ignition, is convenient to operate and the like.
Description
Technical field
The invention belongs to the priming system technical field, relate generally to a kind of priming system powder performance proving installation, relate in particular to a kind of special test equipment that the flame sensitivity of priming system medicaments such as initiating explosive, primer mixture, primer charge, pyrotechnic composition is measured
Background technology
Most priming system medicament is to excite its effect with the mode of lighting a fire, only under the situation of only a few, just come initiation with modes such as blasts, therefore, for understanding the ignition performance of priming system medicament, and, just need to understand the flame sensitivity value of priming system medicament for researching and solving the reliability and security of priming system medicament to flame interaction.With the quantitative sample of priming system medicament, after certain height is subjected to flame interaction, observes it and whether get angry, calculate its 50% ignition height, be the flame sensitivity value of this medicament.
Domestic HGY-1 type flame sensitivity instrument commonly used at present is made up of critical pieces such as column, portfire, pallet, sample mold and guard shields, two root posts are supporting pallet and the sample mold of placing sample, on column, be carved with scale, can directly read ignition altitude, pallet can move up and down, and regulates ignition altitude with manual type.The test principle of this instrument can be sketched and be: heating wire is contained in the portfire the inside, the black powder post ignites after the heating wire energising is scorching hot, the flame interaction that utilizes the when burning ejection of black powder post in distance black powder post certain distance by test agent, observation sample is subjected to the reaction (whether getting angry) behind the flame interaction, the sparking rate or 50% of statistics some samples is got angry highly, as the flame sensitivity value of sample.There is following defective in HGY-1 type flame sensitivity instrument: the height control very flexible of (1) medicament sample and flame source, after each fire trial is intact, the artificial measuring distance of adjusting in being full of the instrument container of residual gas, it is relatively poor that flame height is adjusted precision, directly influences the flame sensitivity measuring accuracy of priming system medicament; (2) there is the observation blind spot in this instrument, can't hang down the flame sensitivity test of sensitivity medicament; (3) adopt autotransformer to light the black powder post, easily cause overvoltage to make resistance wire fusing damage instrument in the operation debug process.
Summary of the invention
The technical problem to be solved in the present invention is, at the deficiencies in the prior art, provides a kind of easy to operate, priming system medicament flame sensitivity tester that measuring accuracy is high, applied widely.
For solving the problems of the technologies described above, flame sensitivity tester provided by the invention comprises the portfire that contains powder column mould and die holder and power supply, two root posts, sample mold, worktable, guard shield, top cover, base, the height adjuster that contains ball screw assembly, and stepper motor, two ball bearing guide bushings, null pick-up, Magnetic Induction piece, limit sensors and controllers, the two ends of described two root posts are separately fixed on described top cover and the described base and the position is symmetrical in axial line between top cover and the base, and described guard shield is installed between top cover and the base; Described stepper motor and portfire are installed on the top cover, and described powder column mould is installed in the central hole of top cover by described die holder; Described worktable is installed on described two root posts by described two ball bearing guide bushings and can slides along two root posts, described sample mold be fixed on the table top of worktable and with described powder column mould over against, described Magnetic Induction piece then is fixed on a side of worktable; Nut and worktable in the described ball screw assembly, are connected, and leading screw one end in the ball screw assembly, is connected by bearing and described base, and the rotating shaft of the other end and stepper motor is connected; Described null pick-up and limit sensors are installed in respectively on top cover and the base, Magnetic Induction piece, null pick-up and limit sensors three are positioned on the straight line, when contacting with the Magnetic Induction piece, null pick-up arrives signal to described controller output zero-bit, and spacing to controller output when limit sensors contacts with the Magnetic Induction piece to signal; Described controller comprises display screen and the Programmable Logic Controller of test Control Software Package is housed, the test Control Software contains page module and apart from control module, the function of described page module is the hurdle to be set showing one group of function button on the described display screen and contain " test point setting ", " on move settings " and the parameter of " moving down setting " item, described function apart from control module is: receive " returning the mechanical zero button " order, send the reverse drive instruction to described stepper motor; Receive described zero-bit to signal or described spacing, send the instruction that stops operating to described stepper motor to signal; Receive " test point button " order, calculate the pairing motor step long number of " test point setting " hurdle middle distance parameter and count forward running instruction with this step-length to described stepper motor transmission; Receive " on move " or " moving down " button command, calculate " on move settings " or the pairing motor step long number of " moving down settings " hurdle middle distance parameter and to described stepper motor send with this step-length number oppositely or forward turn round and instruct.
The present invention also comprises a locking knob, and locking knob is installed on one of them described column, and is close to the lower surface of corresponding ball bearing guide bushing, and when locking knob screwed, described worktable can not move downward along this column.
In the present invention, the power supply of described portfire adopts the controllable silicon priming supply.
Beneficial effect of the present invention is embodied in the following aspects.
(1) the present invention is on the basis of existing sensibility instrument, by the height adjuster that increases controller and form by ball screw assembly, and stepper motor, realized placing the worktable of medicament sample to flame source high degree of intelligence chemical control system, be that operating personnel pass through the various distance parameters of input on the display interface of controller, height adjuster is under the control of testing software, and its stepper motor drives the corresponding distance of movable workbench and arrives test position.Thus, improve the adjustment precision of ignition altitude, also improved priming system medicament flame sensitivity measuring accuracy simultaneously.
(2) under the control of controller software, worktable can move to zero-bit exactly, and therefore, the present invention can realize the ignition distance of zero distance, has eliminated test blindspot of the prior art, thereby can carry out flame test to the low medicament of sensitivity.
(3) the present invention adopts the controllable silicon direct supply to light the sparking mode of flame source, has avoided adopting autotransformer sparking mode resistance wire in debug process easily to fuse and the phenomenon of damage instrument, has guaranteed the reliability of igniting.
Description of drawings
Fig. 1 is that the structure of flame sensitivity instrument of the present invention is formed synoptic diagram.
Fig. 2 is the annexation synoptic diagram of worktable shown in Fig. 1.
Fig. 3 is that the structure of portfire shown in Fig. 1 is formed synoptic diagram.
Fig. 4 is a controller when priming system medicament sample of test apart from control flow chart.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing and preferred embodiment.
As shown in Figure 1, the preferred embodiment of flame sensitivity instrument of the present invention comprises the height adjuster that contains ball screw assembly, 1, stepper motor 3, two ball bearing guide bushing 2, portfire 4 and controllable silicon priming supply thereof, null pick-up 5, two root posts 6, sample mold 7, worktable 8, Magnetic Induction piece 9, locking knob 10, guard shield 11, the top cover 12 that is provided with center pit, limit sensors 13, base 14 and controllers 23.
Two ball bearing guide bushing 2 correspondences are enclosed within on two root posts 6.The two ends of two root posts 6 are separately fixed on top cover 12 and the base 14 and the position is symmetrical in axial line between top cover 12 and the base 14.Stepper motor 3 is installed on the top cover 12.Worktable 8 is provided with mounting hole, center positioning hole and the via hole (referring to Fig. 2) of two position symmetries, two ball bearing guide bushing 2 correspondences be arranged on the worktable 8 two mounting holes and by the location of the flange on the ball bearing guide bushing 2 be connected; Sample mold 7 is placed on the worktable 8 and by the center positioning hole location, places priming system medicament sample to be measured on the sample mold 7.Nut in the ball screw assembly, 1 is arranged in via hole on the worktable 8 and both are connected, and leading screw one end in the ball screw assembly, 1 is connected by bearing and base 14, and the rotating shaft of the other end and stepper motor 13 is connected.Locking knob 10 is installed on one of them column 6, and the lower surface of being close to the ball bearing guide bushing 2 on this column, when locking knob 10 screws, ball bearing guide bushing 2 can not move downward along column 6, can prevent that thus worktable 8 moves down when transportation and off working state under action of gravity, thereby avoid ball screw assembly, 1 stress deformation.Magnetic Induction piece 9 is contained on the side of worktable 8, null pick-up 5 and limit sensors 13 all select Hall switch for use and be installed in top cover 12 respectively and base 14 on, Magnetic Induction piece 9, null pick-up 5 and limit sensors 13 threes are positioned on the straight line, when Magnetic Induction piece 9 is moved upwards up to when contacting with null pick-up 5 with worktable 8, null pick-up 5 arrives signal to controller 23 output zero-bits, when Magnetic Induction piece 9 is moved down into when contacting with limit sensors 13 with worktable 8, limit sensors 13 is spacing to signal to controller 23 outputs.The material of column 6, worktable 8, top cover 12 and base 14 is the 45# steel.Excessive in order to reduce burning gases, warranty test safety, flame sensitivity tester of the present invention has been installed the guard shield of making of organic glass 11 between top cover 12 and base 14, can observe the combustion case of sample by guard shield 11, the center of base 14 has air vent 14-1, this Kong Keyu extractor fan links to each other, so that discharge the waste gas that is produced by the sample burning in the guard shield 11.
According to shown in Figure 3, be fixed on portfire 4 on the top cover 12 and comprise die holder 15, powder column mould 16, resistance wire 17, two sleeves 18, adapter sleeve 19, insulation porcelain seat 20, top cap 21 and cover tubes 22.Die holder 15 is for having the bakelite right cylinder of central stepped, and its upper end also has prominent edge, a delineation position.The right cylinder that have central stepped of powder column mould 16 for adopting carbon tool steel T10A to make.T shape hollow circular cylinder and bottom that sleeve 18 adopts better conductivity brass to make have external thread.Cover tube 22 is made for the 45# steel.Top cap 21 is to have internal thread by U-shaped body and opening end that bakelite is made.Adapter sleeve 19 is the right cylinder that bakelite is made, and two via holes and the outer wall middle part which is provided with the both ends of the surface conducting are provided with annular flange, have external thread on the cylinder of annular flange one side.Two sleeves 18 are inserted into respectively in two via holes on the adapter sleeve 19 and by clamp nut both are connected, and wherein, the ring surface of sleeve 18 is positioned on the end face of adapter sleeve 19 screw threads one side.Resistance wire 17 turns to spiral fashion by the nickel filament of Φ 1mm, be connected on two output wiring terminals of insulation porcelain seat 20 after bringing out on two terminal stud is advanced by the bottom of two sleeve 18 hollows respectively, two input wires terminals of insulation porcelain seat 20 will link to each other with two lead-in wires of controllable silicon priming supply.The opening end of top cap 21 is connected with the thread end of adapter sleeve 19, and cover tube 22 1 ends then are enclosed within on adapter sleeve 19 other end right cylinders and with annular flange and are connected, and have constituted one thus and have connect electric assembly.Die holder 15 is arranged in the center pit of top cover 12, and its location, upper end is prominent along contacting with the upper surface of top cover 12.Powder column mould 16 is positioned in the ladder macropore in the die holder 15, and the bottom that connects the cover tube 22 in the electric assembly contacts with the upper surface of die holder 15, and the spiral part of resistance wire 17 is positioned on the upper surface of powder column mould 16.
Using method of the present invention and mechanism thereof are as follows.
The first step is powered up for controller 23 and motor 3 and unclamps locking knob 10.
Second step, click " returning mechanical zero " button on controller 23 display screens, stepper motor 3 drives worktable 8 by ball screw assembly, 1 and moves up, and when magnetic induction piece 9 contacted with null pick-up 5, motor 3 shut down.
The 3rd step, input test point position data and click " test point " button in " test point setting " hurdle of display screen, stepper motor 3 drives worktable 8 by ball screw assembly, 1 and moves down and arrive the test point position, ready firer's medicament sample to be measured is put into sample mold 7, shut guard shield 11, in the powder column mould 16 of portfire 4, adorn blackout powder grain or a safety fuse, adjust resistance wire 17 height with near black powder post or safety fuse.
The 4th step, open controllable silicon priming supply switch and give resistance wire 17 energisings, light black powder post or safety fuse after the spiral part of resistance wire 17 is scorching hot, black powder post or safety fuse produce sensitivity test flame, close the controllable silicon priming supply immediately.
In the 5th step, if the unignited firer's medicament sample to be measured of flame, the manual record test result is " not getting angry ", clears up powder column mould 16 afterwards.
The 6th step, input is with respect to the adjustment position data of last time test and click " on move " or " moving down " button in " on move setting " of display screen or " on move setting " hurdle, and stepper motor 3 drives worktable 8 by ball screw assembly, 1 and moves up or down and arrive and adjust the position; In the powder column mould 16 of portfire 4, adorn blackout powder grain or a safety fuse, adjust resistance wire 17 height with near black powder post or safety fuse.
The 7th step, open controllable silicon priming supply switch and give resistance wire 17 energisings, light black powder post or safety fuse after the spiral part of resistance wire 17 is scorching hot, black powder post or safety fuse produce sensitivity test flame, close the controllable silicon priming supply immediately.
The 8th step, if flame ignition firer's medicament to be measured sample not yet, the manual record test result is " not getting angry ", after the cleaning powder column mould 16, repeated for the 6th to the 8th step, up to flame ignition firer's medicament to be measured sample, the manual record test result is " ignition ", so far, finished a test of sending out firer's medicament sample to be measured.Afterwards, cleaning sample mold 7 and powder column mould 16, and return the first step and carry out the test that next sends out firer's medicament sample to be measured.Firer's medicament sample testing to be measured in all preparations finishes the tight locking in back knob 10.
Claims (3)
1. priming system medicament flame sensitivity tester, comprise the portfire [4] that contains powder column mould [16] and die holder [15] and power supply, two root posts [6], two ball bearing guide bushings [2], sample mold [7], worktable [8], guard shield [11], top cover [12], base [14], the two ends of described two root posts [6] are separately fixed at that described top cover [12] and described base [14] are gone up and the position is symmetrical in axial line between top cover [12] and the base [14], and described guard shield [11] is installed between top cover [12] and the base [14]; It is characterized in that: also comprise the height adjuster, null pick-up [5], Magnetic Induction piece [9], limit sensors [13] and the controller [23] that contain ball screw assembly, [1] and stepper motor [3], described stepper motor [3] and portfire [4] are installed on the top cover [12], and described powder column mould is installed in the central hole of top cover by described die holder [15]; Described worktable [8] is installed in described two root posts [6] by described two ball bearing guide bushings [2] and goes up also and can slide along two root posts [6], described sample mold [7] be fixed on the table top of worktable [8] and with described powder column mould [16] over against, described Magnetic Induction piece [9] then is fixed on a side of worktable [8]; Nut in the described ball screw assembly, [1] and worktable [8] are connected, and leading screw one end in the ball screw assembly, [1] is connected by bearing and described base [14], and the rotating shaft of the other end and stepper motor [13] is connected; Described null pick-up [5] and limit sensors [13] are installed in respectively on top cover [12] and the base [14], Magnetic Induction piece [9], null pick-up [5] and limit sensors [13] three are positioned on the straight line, when null pick-up [5] arrives signal to described controller [23] output zero-bit with Magnetic Induction piece [9] when contacting, when limit sensors [13] is exported spacing to signal with Magnetic Induction piece [9] to controller [23] when contacting; Described controller [23] comprises display screen and the Programmable Logic Controller of test Control Software Package is housed, the test Control Software contains page module and apart from control module, the function of described page module is the hurdle to be set showing one group of function button on the described display screen and contain " test point setting ", " on move settings " and the parameter of " moving down setting " item, described function apart from control module is: receive " returning the mechanical zero button " order, send the reverse drive instruction to described stepper motor [3]; Receive described zero-bit to signal or described spacing, send the instruction that stops operating to described stepper motor [3] to signal; Receive " test point button " order, calculate the pairing motor step long number of " test point setting " hurdle middle distance parameter and count forward running instruction with this step-length to described stepper motor transmission; Receive " on move " or " moving down " button command, calculate " on move settings " or the pairing motor step long number of " moving down settings " hurdle middle distance parameter and to described stepper motor send with this step-length number oppositely or forward turn round and instruct.
2. priming system medicament flame sensitivity tester according to claim 1, it is characterized in that: also comprise a locking knob [10], locking knob [10] is installed in the lower surface that corresponding ball bearing guide bushing [2] were gone up and be close to one of them described column [6], when locking knob [10] when screwing, described worktable [8] can not move downward along this column [6].
3. priming system medicament flame sensitivity tester according to claim 1 and 2 is characterized in that: the power supply of described portfire [4] adopts the controllable silicon priming supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102760951A CN102004120B (en) | 2010-09-08 | 2010-09-08 | Test instrument of flame sensitivity of loading material for initiating explosive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102760951A CN102004120B (en) | 2010-09-08 | 2010-09-08 | Test instrument of flame sensitivity of loading material for initiating explosive device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102004120A true CN102004120A (en) | 2011-04-06 |
| CN102004120B CN102004120B (en) | 2012-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102760951A Expired - Fee Related CN102004120B (en) | 2010-09-08 | 2010-09-08 | Test instrument of flame sensitivity of loading material for initiating explosive device |
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| Country | Link |
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| CN (1) | CN102004120B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108120667A (en) * | 2017-12-26 | 2018-06-05 | 西安航天精密机电研究所 | A kind of guiding and locking device of the test of priming system impact sensitivity |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11223619A (en) * | 1998-02-07 | 1999-08-17 | Horiba Ltd | Hydrogen flame ionization detector |
| CN101382533A (en) * | 2008-10-15 | 2009-03-11 | 西安近代化学研究所 | Device for testing powder combustion characteristics in vacuum condition |
| CN201527305U (en) * | 2009-11-16 | 2010-07-14 | 苏州宝联重工股份有限公司 | Convenient flame detector |
-
2010
- 2010-09-08 CN CN2010102760951A patent/CN102004120B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11223619A (en) * | 1998-02-07 | 1999-08-17 | Horiba Ltd | Hydrogen flame ionization detector |
| CN101382533A (en) * | 2008-10-15 | 2009-03-11 | 西安近代化学研究所 | Device for testing powder combustion characteristics in vacuum condition |
| CN201527305U (en) * | 2009-11-16 | 2010-07-14 | 苏州宝联重工股份有限公司 | Convenient flame detector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108120667A (en) * | 2017-12-26 | 2018-06-05 | 西安航天精密机电研究所 | A kind of guiding and locking device of the test of priming system impact sensitivity |
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| Publication number | Publication date |
|---|---|
| CN102004120B (en) | 2012-11-14 |
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Granted publication date: 20121114 Termination date: 20190908 |