CN105222641B - A kind of reluctance type Electromagnetical ejector testing stand - Google Patents

Abstract

The invention provides a kind of reluctance type Electromagnetical ejector testing stand, relate to reluctance type Electromagnetical ejector simulation technical field, for solving the problem that the accuracy of the analysis of simulation result of reluctance type Electromagnetical ejector is low present in prior art.Described reluctance type Electromagnetical ejector testing stand, including: pedestal, ejector installing plate and trigger mechanism, ejector main body is installed on ejector installing plate, ejector main body includes first pipe, the first accelerator, middle pipe, the second accelerator and the tail pipe being sequentially connected with, first accelerator and the second accelerator all include accelerating coil, it is respectively arranged with photogate transmitting-receiving hole on middle pipe and tail pipe, by each photogate transmitting-receiving hole, is separately installed with a photogate；The triggering end of trigger mechanism stretches in middle pipe, and Projectile Motion starts the second accelerator to trigger mechanism when triggering end.Described reluctance type Electromagnetical ejector testing stand is applied in reluctance type Electromagnetical ejector simulation process.

Description

A kind of reluctance type Electromagnetical ejector testing stand

Technical field

The present invention relates to reluctance type Electromagnetical ejector simulation technical field, especially relate to a kind of reluctance type Electromagnetical ejector Testing stand.

Background technology

Electromagnetism speed technology has the most wide application prospect in weapon manufacture, and its form is also varied.Make For the sophisticated technology of carrier-borne aircraft catapult-assisted take-off, electromagnetic launch always various countries' military project falls over each other the object of research.Especially at kinetic energy The research field of weapon, electromagnetic launch technology is the most leading, and its primitive form is also varied, has coilgun, track The various ways such as big gun, electrothermal gun.Wherein, coilgun is always the focus of various countries' research, and this form structure that launches is simple, launches Efficiency is the highest, and reluctance coil big gun is made up of the yoke iron core of a series of solenoid-activated coils and ferromagnetic material, when iron core is transported Time dynamic, the magnetic resistance of the magnetic circuit of wound coil will change, and the most just iron core bullet be created active force.When iron core advances to During hub of a spool, magnetic flux is relatively easy to form and passes through, this is because the air-gap of magnetic circuit diminishes, the magnetic resistance of magnetic circuit is the least, now The most minimum to the active force of iron core.When iron core is removed from hub of a spool, iron core magnetic force forward was originally drawn to now become to draw ferrum Core backward, therefore, must take some measure so that it is not pulled after iron core arrives hub of a spool immediately.In order to allow magnetic resistance Formula has launched higher kinetic energy, and general reluctance type electromagnetic launch needs to use the mode of multistage acceleration, with same principle for Bullet repeatedly accelerates, and Accelerator control thus proposes high requirement, because only that conservative control pulse current time Machine and waveform, could allow ejector work efficiency reach the highest.

Clearly for the calculating of reluctance type electromagnetic launch emission effciency, there is multiple non-linear variable, we can be based on Computer finite element analysis obtains more accurate simulation result, including inductance value analytical calculation, bullet stress curve with And bullet muzzle velocity, but for actual experiment during, finite element analysis has a lot of insurmountable problem.Such as, real The coil of border coiling and idealization coil former still have certain gap, especially after repeatedly launching coil due to stress Deformation occur, there is minor variations in inductance value.Another, ideal capacitor discharge curve is not followed in true capacitor electric discharge, Each electric capacity has different parameters, and the magnetization characteristic of bullet is also not quite similar, even the magnetic material of same label, also Can have different magnetization characteristics because production batch is different, these factors have all had a strong impact on simulation analysis result Accuracy.

Summary of the invention

It is an object of the invention to provide a kind of reluctance type Electromagnetical ejector testing stand, to solve present in prior art The problem that the accuracy of the analysis of simulation result of reluctance type Electromagnetical ejector is low.

For reaching above-mentioned purpose, the technical scheme is that and be achieved in that:

A kind of reluctance type Electromagnetical ejector testing stand that the present invention provides, including: pedestal, it is arranged at above described pedestal Ejector installing plate, is arranged at intervals with multiple first pillar, described ejector between described pedestal and described ejector installing plate Ejector main body is installed on installing plate, first pipe that described ejector main body includes being sequentially connected with, the first accelerator, middle pipe, the Two accelerators and tail pipe, described first accelerator and described second accelerator all include accelerating coil, described middle pipe and described tail It is respectively arranged with photogate transmitting-receiving hole on pipe, by each described photogate transmitting-receiving hole, is separately installed with one For measuring the photogate of velocity of shot；Described reluctance type Electromagnetical ejector testing stand also includes trigger mechanism, described The triggering end of trigger mechanism stretches in described middle pipe, and during described Projectile Motion to described triggering end, described trigger mechanism starts described Second accelerator.

Preferably, trigger mechanism includes contact fixed support and the triggering end being fixed on described contact fixed support, institute Stating triggering end and include the contact that two panels is electrically connected to each other, one of them described contact stretches into described middle pipe.

Preferably, described middle pipe be provided above trigger mechanism installing plate, described trigger mechanism installing plate and described bullet It is provided with multiple second pillar between emitter installing plate, described trigger mechanism installing plate axially offers cunning along described middle pipe Groove, described contact bracket slide is installed in described chute.

Preferably, described trigger mechanism includes triggering end, and described triggering end is rod-shaped conductor, described middle pipe is provided with tactile Send out grooving, described rod-shaped conductor pass described triggering grooving, described bullet through described rod-shaped conductor by described rod-shaped conductor Smashing, described trigger mechanism starts described second accelerator.

Preferably, the periphery of described first pipe, described middle pipe and described tail pipe is separately installed with postive stop baffle.

Preferably, the two ends of described first accelerator and the two ends of described second accelerator are separately installed with accelerator and fix Part.

Preferably, sensor stand, described sensor stand it are provided with between described pedestal and described ejector installing plate It is oppositely arranged with described photogate.

Preferably, the lower section of described pedestal is provided with base, and four angular zones under described base are respectively arranged with height and adjust Joint frame.

Preferably, described base being provided with pedestal suspension, described pedestal is by described pedestal suspension and described base phase Even.

Preferably, the upper surface of described first pipe offers observation groove.

Relative to prior art, reluctance type Electromagnetical ejector testing stand of the present invention has the advantage that

Use the reluctance type Electromagnetical ejector testing stand that the present embodiment provides, use the reluctance type electromagnetism that the present embodiment provides Ejector testing stand, can simulate reluctance type Electromagnetical ejector and carry out actual motion, such that it is able to detect actual turn to add The speed coil impact on bullet, it is also possible to detect accelerating coil after repeatedly launching and the change of parameter after deformation occurs and to bullet The impact that ball launches, and can carry out drawing the magnetization characteristic of himself reality according to the bullet that experiment uses.Meanwhile, originally The reluctance type Electromagnetical ejector testing stand that embodiment provides can utilize photogate switch sensor to measure via the first accelerator The speed parameter of bullet after accelerating with the second accelerator；Supply voltage parameter can be adjusted by regulation DC source voltage, visit Ask voltage for launching the impact of efficiency；The electric capacity that can adjust the accelerating coil in the first accelerator and the second accelerator holds Amount, finds optimal capacitance parameter；Also allow for changing variety classes, the accelerating coil of different parameters, to seek optimal acceleration The parameter of coil.It is to say, the reluctance type Electromagnetical ejector testing stand using the present embodiment to provide can simulate reluctance type electricity Magnetic ejector carries out actual motion, thus detects the change of the most each parameter of ejector, and can be in time to magnetic resistance The each several part parameter of formula Electromagnetical ejector is adjusted so that for reluctance type Electromagnetical ejector analysis of simulation result more Accurately.

Accompanying drawing explanation

In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to specifically In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, in describing below Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not paying creative work Put, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

The structural representation of the reluctance type Electromagnetical ejector testing stand that Fig. 1 provides for the embodiment of the present invention；

Fig. 2 is the structural representation of the ejector main body shown in Fig. 1；

The ejector main body that Fig. 3 provides for the embodiment of the present invention and the connection diagram of postive stop baffle；

The circuit diagram of trigger mechanism in the reluctance type Electromagnetical ejector testing stand that Fig. 4 provides for the embodiment of the present invention；

The structural representation of trigger mechanism in the reluctance type Electromagnetical ejector testing stand that Fig. 5 provides for the embodiment of the present invention；

The second accelerator that Fig. 6 provides for the embodiment of the present invention and the connection diagram one of accelerator fixture；

The second accelerator that Fig. 7 provides for the embodiment of the present invention and the connection diagram two of accelerator fixture；

The second accelerator that Fig. 8 provides for the embodiment of the present invention and the connection diagram three of accelerator fixture；

The reluctance type Electromagnetical ejector testing stand that Fig. 9 provides for the embodiment of the present invention shows with the connection of impulse current generator It is intended to.

Reference:

11-pedestal；12-ejector installing plate；13-trigger mechanism installing plate；

14-base；15-chute；21-head pipe；

22-manages；23-tail pipe；24-observes groove；

25-triggers groove；26-postive stop baffle；31-the first accelerator；

32-the second accelerator；33-accelerator fixture；41-the first pillar；

42-the second pillar；5-photogate；51-sensor stand；

6-trigger mechanism；61-contact fixed support；62-the first contact；

63-the second wafer；71-pedestal suspension；72-suspension in an opposite direction；

81-impulse current generator upper strata；82-impulse current generator intermediate layer；

83-impulse current generator bottom.

Detailed description of the invention

Below in conjunction with accompanying drawing, technical scheme is clearly and completely described, it is clear that described enforcement Example is a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill The every other embodiment that personnel are obtained under not making creative work premise, broadly falls into the scope of protection of the invention.

In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertically ", Orientation or the position relationship of the instruction such as " level ", " interior ", " outward " they are based on orientation shown in the drawings or position relationship, merely to Be easy to describe the present invention and simplifying describe rather than instruction or the hint device of indication or element must have specific orientation, With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ", " the 3rd " is only used for describing purpose, and it is not intended that indicate or hint relative importance.

In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " phase Even ", " connection " should be interpreted broadly, for example, it may be fixing connection, it is also possible to be to removably connect, or be integrally connected；Can To be mechanical connection, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi The connection of two element internals.For the ordinary skill in the art, can understand that above-mentioned term is at this with concrete condition Concrete meaning in invention.

The structural representation of the reluctance type Electromagnetical ejector testing stand that Fig. 1 provides for the embodiment of the present invention, as it is shown in figure 1, The reluctance type Electromagnetical ejector testing stand that the embodiment of the present invention provides, including: pedestal 11, it is arranged at the ejector above pedestal 11 Installing plate 12, is arranged at intervals with multiple first pillar 41, in FIG, the first pillar between pedestal 11 and ejector installing plate 12 41 are divided into two row, and each column eight interval is arranged, and ejector installing plate 12 is provided with ejector main body, and ejector main body includes depending on First pipe 21, first accelerator 31 of secondary connection, middle pipe the 22, second accelerator 32 and tail pipe 23, the first accelerator 31 and second adds Speed device 32 all includes accelerating coil, middle pipe 22 and tail pipe 23 is respectively arranged with photogate 5 and receives and dispatches hole, at each photoelectricity Door sensor 5 is received and dispatched and is separately installed with one by hole for the photogate 5 measuring velocity of shot, photogate 5 Employing reverse mounted method, downward outlet, its main body is placed between ejector installing plate 12 and pedestal 11, thus effectively Make use of space, make whole apparatus structure compact.The Main Function of photogate 5 is to measure velocity of shot, and it measures position Put and keep certain distance with the first accelerator 31 and the second accelerator 32 respectively, its objective is to determine that bullet departs from the first accelerator 31 and second accelerator 32 act on, and after velocity-stabilization, carry out tachometric survey again, it is ensured that data accuracy.；Reluctance type electromagnetism bullet Emitter testing stand also includes trigger mechanism 6, and the triggering end of trigger mechanism 6 stretches in middle pipe 22, and Projectile Motion touches to when triggering end Send out mechanism 6 and start the second accelerator 32.

Fig. 2 is the structural representation of the ejector main body shown in Fig. 1, during as in figure 2 it is shown, be embodied as, the first accelerator 31 is identical with the second accelerator 32 structure, all includes coil rack and the accelerating coil being wrapped on coil rack, wherein, coil Skeleton is made up of photosensitive resin, and photosensitive resin is non-conductive, nonmagnetic, and therefore in accelerating coil galvanization, coil rack is not Eddy current can be induced because of violent changes of magnetic field, also will not be because of the distribution that there is effect of magnetic influence magnetic field.First pipe 21, middle pipe 22 With the tubular structure that tail pipe 23 all uses square-outside and round-inside, internal circular channel passes through for Projectile Motion, external square shell It is easy to fixed installation.

The reluctance type Electromagnetical ejector testing stand using the present embodiment to provide, can simulate reluctance type Electromagnetical ejector and carry out Actual motion, such that it is able to detect the impact on bullet of the actual accelerating coil turned to, it is also possible to detects after repeatedly launching Accelerating coil deformation occurs after the change of parameter and impact that bullet is launched, and can carry out according to the bullet that experiment uses Draw the magnetization characteristic of himself reality.Meanwhile, the reluctance type Electromagnetical ejector testing stand that the present embodiment provides can be in order to The speed parameter of bullet after accelerating via the first accelerator 31 and the second accelerator 32 with light switch sensor measurement；Can To adjust supply voltage parameter by regulation DC source voltage, seek voltage for launching the impact of efficiency；First can be adjusted The capacitance of the accelerating coil in accelerator 31 and the second accelerator 32, finds optimal capacitance parameter；Also allow for changing not Same kind, the accelerating coil of different parameters, to seek the parameter of optimal accelerating coil.It is to say, use the present embodiment to carry The reluctance type Electromagnetical ejector testing stand of confession can be simulated reluctance type Electromagnetical ejector and be carried out actual motion, thus detects ejector The change of the most each parameter, and can in time each several part parameter of reluctance type Electromagnetical ejector be adjusted, from And make the analysis of simulation result for reluctance type Electromagnetical ejector more accurate.

Additionally, above-mentioned reluctance type Electromagnetical ejector testing stand can also utilize the instrument such as thermal resistance and temperature measurer quick, smart Really measure the state of temperature of accelerating coil, show that temperature is for launching the impact of efficiency.

The ejector main body that Fig. 3 provides for the embodiment of the present invention and the connection diagram of postive stop baffle 26, as it is shown on figure 3, For the ease of observing bullet moving situation in first pipe 21, it is preferable that the upper surface of first pipe 21 offers observation groove 24.In order to Ensure that first pipe 21, middle pipe 22 and tail pipe 23 will not bend in the course of the work, misplace, deformation, first pipe 21, middle pipe 22 and tail pipe 23 Periphery be separately installed with postive stop baffle 26, say, that at both sides (the vertical paper in Fig. 1 of first pipe 21, middle pipe 22 and tail pipe 23 The both sides in direction, face) and end face and bottom surface on be both provided with postive stop baffle 26.These postive stop baffles 26 are aluminium panels, Offer notch with the position observing groove 24 relative on first pipe 21, receive and dispatch hole with the photogate on middle pipe 22 and tail pipe 23 Relative position offers through hole so that the first pipe 21 of whole ejector main body, middle pipe 22 and tail pipe 23 are all wrapped by, real Show higher intensity, do not affect a series of measurements for bullet, position fixing process simultaneously.

The circuit diagram of trigger mechanism 6 in the reluctance type Electromagnetical ejector testing stand that Fig. 4 provides for the embodiment of the present invention, such as figure Shown in 4, after switch S1A Guan Bi, trigger mechanism 6 enters armed state, now has electric current through inductance L1, normally closed switch S1B, stream Telegram in reply resource loop, now gate pole and the negative electrode of the IGCT D1 of the second accelerator 32 is in reliable short circuit state, will not be triggered, When the moment that switch S1B opens, due to the choking effect of inductance L1, electric current will not be undergone mutation, and originally flows through the electricity of switch S1B Stream is forced to change its course the gate pole of the IGCT D1 flowing into the second accelerator 32, and then triggers the opening of IGCT D1 of the second accelerator 32 Logical.Its core is, using circuitry cuts as characterizing signal, triggers corresponding IGCT D1.This circuit theory is simple, it is easy to real Existing, the trigger current of IGCT D1 is directly controlled, is particularly due to the existence of choking-winding, can well reduce tactile In Power Generation Road, all kinds of stray capacitances, inductance cause delay for the triggering of IGCT, and theoretically, switch S1B opens and can lead Cause IGCT D1 the most open-minded without delay, smear arc extinguishing medium in contact, it is possible to reduce the most small electric arc, then Accelerate above-mentioned cutting-off process, in sum, it is achieved said process has only to realize a bit, that is, allow in bullet running, Need to trigger the position of the second accelerator 32, cutting off a certain current path, produce the condition that similar switch S1B quickly opens, Thus the zero-lag realizing the second accelerator 32 triggers.

The structural representation of trigger mechanism 6 in the reluctance type Electromagnetical ejector testing stand that Fig. 5 provides for the embodiment of the present invention, As it is shown in figure 5, in above-mentioned reluctance type Electromagnetical ejector testing stand, trigger mechanism 6 can be following structure: trigger mechanism 6 includes Contact fixed support 61 and the triggering end being fixed on contact fixed support 61, it is tactile that triggering end includes that two panels is electrically connected to each other Sheet, one of them contact stretches into middle pipe 22.When being embodied as, middle pipe 22 top offers triggering groove 25, two panels contact vertically Being made by pyrite, have preferable toughness and contact electric conductivity, for the ease of distinguishing the two contact, the two is touched by we Named first contact 62 of sheet and the second wafer 63, the first contact 62 tilts certain angle, its distance front end certain distance Region crimps the left end of the first contact 62 (in figure be crimp with the second wafer 63) with the second wafer 63, keeps good contact, from And define good path, and it being similar to the normally off of switch, the first contact 62 stretches in the triggering groove 25 of middle pipe 22.Work as bullet When ball therefrom pipe 22 passes through, in the moment touching the first contact 62, the front end of the first contact 62 can be started and (lift to the right Rise), thus cause the first contact 62 and the second wafer 63 to disengage, and then achieve throwing open of similar switch S1B Effect, now the IGCT of the second accelerator 32 can be the most open-minded, and time delay is the least.

For the ease of adjust trigger end position, in a preferred embodiment, middle pipe 22 be provided above trigger Mechanism's installing plate 13, is provided with multiple second pillar 42 between trigger mechanism installing plate 13 and ejector installing plate 12, trigger machine On structure installing plate 13 along in pipe 22 axially offer chute 15, contact bracket slide is installed in chute 15.When being embodied as, The upper end of contact fixed support 61 is provided with draw-in groove, and contact fixed support 61 is by the chute of draw-in groove with trigger mechanism installing plate 13 The side of 15 connects, so that trigger mechanism 6 can slide along the length direction of chute 15, thus drives triggering end at middle pipe 22 Triggering groove 25 in slide, easily trigger timing is accurately adjusted, and then is determined by experiment the optimum position of triggering Parameter, this trigger mechanism 6 can be run multiple times without changing parts with Reusability simultaneously, improves test every time Work efficiency.

Above-mentioned trigger mechanism 6 is adapted to low speed bullet, and when using High-velocity Projectiles, trigger mechanism 6 can be following structure: The triggering end of trigger mechanism 6 is rod-shaped conductor, and rod-shaped conductor is closed by the hybrid epoxidized glue laminated of metal dust and processed, on middle pipe 22 Being provided with triggering grooving, described triggering grooving is arc grooving, and rod-shaped conductor, through triggering grooving, serves as the role of switch, stream Galvanization, when bullet is after rod-shaped conductor, powerful impulsive force can pulverize rapidly rod-shaped conductor, causes similar switch S1B fast The effect that speed is opened, the most open-minded through rod-shaped conductor at bullet to ensure the IGCT of the second accelerator 32, thus accurately Control the trigger timing of the IGCT of the second accelerator 32.

The connection diagram one of the second accelerator 32 that Fig. 6 provides for the embodiment of the present invention and accelerator fixture 33；Fig. 7 The second accelerator 32 provided for the embodiment of the present invention and the connection diagram two of accelerator fixture 33；Fig. 8 is that the present invention is real Execute the second accelerator 32 and the connection diagram three of accelerator fixture 33 that example provides；As shown in fig. 6-7, in order to improve first Accelerator 31 and the stable connection of the second accelerator 32, it is preferable that the two ends of the first accelerator 31 and the second accelerator 32 Two ends are separately installed with accelerator fixture 33.When being embodied as, accelerator fixture 33 is aluminum design, accelerator fixture 33 axially have through hole along first pipes 21, and through hole is divided into two parts vertically, to connect between first pipe 21 and the first accelerator 31 Accelerator fixture 33 as a example by, the diameter of the part near first pipe 21 of the through hole of this accelerator fixture 33 and first pipe 21 On bossing coupling, can be mutually inserted with the bossing of first pipe 21, this ensures that there first pipe 21 solid with accelerator Locking member 33 is rigidly connected；Accelerator fixture 33 mates, directly with the interface section of first pipe 21 near the part of one-level accelerator First pipe 21 and the interface gap of one-level accelerator are coated with it, it is ensured that the rigidity of the interface section of first pipe 21 and the first accelerator 31 Connect, it is ensured that it will not occur dislocation or the phenomenon of bending；The relatively first pipe 21 of accelerator fixture 33 both sides radially are respectively provided with One wings, is preferably fixed together accelerator with accelerator base 14 by wings.

Further, two sensor stands 51, two sensor stands it are provided with between pedestal 11 and ejector base plate 51 install relative to two photogate 5 respectively, and sensor stand 51 is oppositely arranged with photogate 5, for stable Photogate 5 is installed, prevents from causing photogate 5 to rock during ejector main body is run and affecting measurement Result.

As the further deformation to above-mentioned reluctance type Electromagnetical ejector testing stand, the lower section of pedestal 11 is provided with base 14, four angular zones under base 14 are respectively arranged with height regulating frame.When being embodied as, base 14 makes for using monoblock Masson Pine Wooden base 14, wooden base 14 can well absorb ejector main body in running in the case of rigidity ensureing The mechanical shock produced.There are on base 14 three threading square holes laterally opened, occur installing for terminal block, make driving electric Current wire is hidden and is passed through, and base 14 also has the installing hole that two longitudinal directions are opened, is mainly used in the holding wire of photogate 5 Hide and pass through, bottom base 14, have five notches intersected respectively with threading square hole, draw bottom base 14 for wire and Do not affect base 14 steadily to lay.Now, coordinating base 14, pedestal 11 also has five through wires holes, big with base 14 through wires hole Little identical, for whole ejector main body reasonable line arrangement.Including reserved terminal block installing hole, for pacifying at through wires hole Dress terminal block.

Simultaneously as four angular zones under base 14 are respectively arranged with height regulating frame, by regulating each height regulating frame Height can adjust the inclination angle of base 14, thus adjust the tilt angled down of ejector main body, to compensate bullet with gravitional force The frictional resistance produced when ball slides in ejector main body, improves experimental result accuracy.

Owing to there is the bulge-structure of various connection securing member in pedestal 11 bottom, the nut of such as screw, nut etc., therefore The bottom of pedestal 11 out-of-flatness, it is impossible to fit tightly with base 14, pedestal 11 possibly even produces and rocks, it is difficult to fastening, because of And need to be fixed by thicker pedestal suspension 71.Please continue to refer to Fig. 1, base 14 is provided with pedestal suspension 71, base Seat 11 is connected with base 14 by pedestal suspension 71.When being embodied as, (it is vertical paper in FIG in the both sides of pedestal 11 Both sides) it is each provided with a pedestal suspension 71 being made up of aluminium sheet.Pedestal suspension 71 is for separating base 14 with pedestal 11 Certain distance.Pedestal suspension 71 has row's internal thread hole relative to the inner side of pedestal 11, for being fastenedly connected, so with pedestal 11 One, the bottom of pedestal suspension 71 does not just have the projection of securing member, as the connection of pedestal suspension 71 with base 14, at base Outside seat suspension 71, use tapping screw, it is achieved the fastening of two kinds of different materials.Pedestal suspension 71 undulate, regular Avoid pedestal 11 installation securing member below.This completes between base 14 with pedestal 11 firm is connected.

It addition, as it is shown in figure 1, in the left field (direction as shown in Figure 1) of base 14, base 14 is provided with by aluminum The suspension that plate is made son 72 in an opposite direction, suspension 72 in an opposite direction is positioned at the left side of pedestal 11, realizes its response function at supplementary base suspension 71 While, the suspension huge recoil that ejector main body can be produced in ejection process by son 72 in an opposite direction is controlled and absorbs, Prevent ejector main body from producing excessive displacement relative to base 14 in ejection process, thus strengthen whole attachment structure.

In above-mentioned reluctance type Electromagnetical ejector testing stand, the first accelerator 31 and the second accelerator 32 are respectively by pulse current Generator provides high level pulse current, the impulse current generator used the embodiment of the present invention below to illustrate.

The reluctance type Electromagnetical ejector testing stand that Fig. 9 provides for the embodiment of the present invention shows with the connection of impulse current generator Being intended to, as it is shown in figure 9, impulse current generator is divided into three layers, the components and parts in impulse current generator upper strata 81 serve control System is incorporated to the effect of tank capacitors quantity.Having negative electrode to conflux busbar above the circuit on upper strata 81, bleeder resistance switchs.Vent discharge Whether resistance switch accesses loop for the bleeder resistance of Non-follow control impulse current generator bottom 83, and bleeder resistance effect is exactly Release sb. unconditionally capacitance voltage, it is ensured that in emergency circumstances circuit safety.The negative electrode busbar that confluxes is spaced with following hexagonal double-ended bolt Layer of glass fiber insulation board, after being screwed into milled screw, so that it may so that busbar is corresponding on negative electrode confluxes the corresponding installing hole of busbar Hexagonal double-ended bolt reliable connection, namely corresponding capacitor is incorporated to tank circuit, realizes impulse current generator energy storage with this The regulation of capacitance parameter.

There are two row's Capacitor banks in impulse current generator intermediate layer 82, uses common-anode, each capacitor to coordinate Piece hexagonal double-ended bolt busbar that confluxes with negative electrode is connected, and its charging and discharging currents is guided by hexagonal double-ended bolt, constitutes relatively independent electricity Container group loop, facilitates Capacitor banks also entry loop or excision from loop on demand.It is anode in the middle of two row's Capacitor banks Conflux busbar, brass sheet digital control processing form, overall in T shape.T-shaped lower part is furnished with Capacitor banks anode tap sub-aperture, All capacitor common-anode are connected on anode and conflux on busbar, T-shaped busbar top crimping half control device blocks, serve and collect sun Electrode current, transfers to the effect that half control device controls.Finally, anode lead wire is drawn by half control device blocks, the control of half control device System terminates at cutting type and controls on current feedback circuit.

Impulse current generator bottom 83 is key-course.Inverter circuit, current-limiting resistance, bleeder resistance, relay are disposed Module, supplies as the DC source realizing various voltage, and current-limiting resistance is made up of high-power resistance connection in series-parallel, has enough thermal capacitances Amount, effect power rush to inverter when being exactly the charging of limiting capacitance device group, power peak is controlled at inverter specified Within power.Bleeder resistance is for the residual voltage of releasing capacitor group, it is ensured that the safety of experiment.Relay group is used for realizing electricity Relevant position, road cut-off control, control its action by chip programming, relatively low for danger coefficient, arcing probability is little, open Power-off stream is little and needs the place of frequent movement.24v direct current is 440v alternating current through inverter boosting, through Ultrafast recovery two Becoming HVDC after the pipe bridge rectifier of pole, high voltage direct current, through current-limiting resistance, charges to energy-storage capacitor to upper strata 81, continues Three, electrical equipment, wherein the series connection of the first two relay controls the break-make of high voltage direct current, it is ensured that safe and reliable, last relay Controlling IGBT group signal, wherein the triggering signal of the first accelerator 31 is provided by aneroid battery, the triggering of the second accelerator 32 Signal is provided by trigger mechanism 6.Impulse current generator intermediate layer 82 is accumulator, impulse current generator bottom 83 supply Answer pulse current, to coil discharge.Capacitor uses common-anode, and its negative electrode individually separates, by impulse current generator Knurled nut in layer 81 determines whether negative electrode accesses circuit.Electrical connection between layers is completely by pyrite hexagonal double-ended bolt Connect.

Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；To the greatest extent The present invention has been described in detail by pipe with reference to foregoing embodiments, it will be understood by those within the art that: it depends on So the technical scheme described in foregoing embodiments can be modified, or the most some or all of technical characteristic is entered Row equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology The scope of scheme.

Claims (10)

1. a reluctance type Electromagnetical ejector testing stand, it is characterised in that including: pedestal, be arranged at the bullet above described pedestal Emitter installing plate, is arranged at intervals with multiple first pillar between described pedestal and described ejector installing plate, described ejector is pacified On dress plate, ejector main body is installed, first pipe that described ejector main body includes being sequentially connected with, the first accelerator, middle pipe, second Accelerator and tail pipe, described first accelerator and described second accelerator all include accelerating coil, described middle pipe and described tail pipe On be respectively arranged with photogate transmitting-receiving hole, each described photogate transmitting-receiving hole by be separately installed with a use In the photogate measuring velocity of shot；Described reluctance type Electromagnetical ejector testing stand also includes trigger mechanism, described tactile The triggering end sending out mechanism stretches in described middle pipe, described trigger mechanism startup described the during described Projectile Motion to described triggering end Two accelerators.

Reluctance type Electromagnetical ejector testing stand the most according to claim 1, it is characterised in that trigger mechanism includes that contact is solid Fixed rack and the triggering end being fixed on described contact fixed support, described triggering end includes the contact that two panels is electrically connected to each other, One of them described contact stretches into described middle pipe.

Reluctance type Electromagnetical ejector testing stand the most according to claim 2, it is characterised in that being provided above of described middle pipe There is trigger mechanism installing plate, between described trigger mechanism installing plate and described ejector installing plate, be provided with multiple second pillar, Axially offering chute along described middle pipe on described trigger mechanism installing plate, described contact bracket slide is installed on described chute In.

Reluctance type Electromagnetical ejector testing stand the most according to claim 1, it is characterised in that described trigger mechanism includes touching Making a start, described triggering end is rod-shaped conductor, and described middle pipe is provided with triggering grooving, and described rod-shaped conductor is cut through described triggering Groove, described rod-shaped conductor is smashed by described bullet through described rod-shaped conductor, and described trigger mechanism starts described second and accelerates Device.

Reluctance type Electromagnetical ejector testing stand the most according to claim 1, it is characterised in that described first pipe, described middle pipe It is separately installed with postive stop baffle with the periphery of described tail pipe.

Reluctance type Electromagnetical ejector testing stand the most according to claim 1, it is characterised in that the two of described first accelerator The two ends of end and described second accelerator are separately installed with accelerator fixture.

Reluctance type Electromagnetical ejector testing stand the most according to claim 1, it is characterised in that described pedestal and described launch Being provided with sensor stand between device installing plate, described sensor stand is oppositely arranged with described photogate.

Reluctance type Electromagnetical ejector testing stand the most according to claim 1, it is characterised in that the lower section of described pedestal is arranged Having base, four angular zones under described base are respectively arranged with height regulating frame.

Reluctance type Electromagnetical ejector testing stand the most according to claim 8, it is characterised in that be provided with base on described base Seat suspension, described pedestal is connected with described base by described pedestal suspension.

Reluctance type Electromagnetical ejector testing stand the most according to claim 1, it is characterised in that the upper surface of described first pipe Offer observation groove.