CN104613828A - Micro electro mechanical system (MEMS) centrifugal safety mechanism for rotating ammunition and safety method thereof - Google Patents

Micro electro mechanical system (MEMS) centrifugal safety mechanism for rotating ammunition and safety method thereof Download PDF

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Publication number
CN104613828A
CN104613828A CN201510061978.3A CN201510061978A CN104613828A CN 104613828 A CN104613828 A CN 104613828A CN 201510061978 A CN201510061978 A CN 201510061978A CN 104613828 A CN104613828 A CN 104613828A
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centrifugal
slide block
baffle plate
propagation
ammunition
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CN104613828B (en
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王辅辅
娄文忠
王大奎
金鑫
丁旭冉
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Beijing Institute of Technology BIT
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Beijing Institute of Technology BIT
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Abstract

The invention discloses a micro electro mechanical system (MEMS) centrifugal safety mechanism for rotating ammunition and a safety method of the MEMS centrifugal safety mechanism. An elastic beam processed on a base plate integrally is connected with a centrifugal mass block, a centrifugal baffle plate fixedly connected on the centrifugal mass block is embedded into a groove in the bottom of a sliding block for restraining the sliding block, when the rotating ammunition falls off accidentally or rolls during order dealing, the elastic beam can ensure that the centrifugal mass block and the centrifugal baffle plate fixedly connected with the centrifugal mass block are at initial position, the centrifugal baffle plate can restrain the sliding block, an explosion propagation hole is isolated from an explosion propagation channel and a safety device is safe; if the launching operation is abnormal, the elastic beam still can drive the centrifugal baffle plate fixedly connected with the centrifugal mass block to return to the initial position to restrain the sliding block, so that the safety of the ammunition after misfiring accidentally is ensured. The MEMS centrifugal safety mechanism is wide in applicability, is suitable for various MEMS safety devices for rotating ammunition, and is integrally processed with the base plate, so that the assembling links are reduced; and the MEMS centrifugal safety mechanism is convenient for modular and generalized design, and is easy for batch production and low in cost.

Description

A kind of centrifugal insurance institution of the MEMS for rotating ammunition and insurance method thereof
Technical field
The present invention relates to rotation ammunition technology, be specifically related to a kind ofly exempt from the centrifugal insurance institution of assembling plate formula MEMS and insurance method thereof for what rotate ammunition.
Background technology
Ammunition comprises fuse and warhead; Wherein, in warhead, ignition charge is set; Fuse comprises safety protection device, initiation control circuit and priming system, safety protection device ensures that ammunition (assembles, carries, transports, stores and filling) and reach solution far away in duties processing procedure and does not ignite apart from front, after target or shock target, initiation control circuit controls priming system and detonates, and ignites the ignition charge in warhead.Pouring in recent years along with new technology, the continuous expansion of new battlefield surroundings, requires also to improve constantly to fuse, and meanwhile, modern weapons equipment requires also improving constantly to ammunition performance and damage effects.This just requires in the intrinsic volume of ammunition in hand, increases explosive payload and compresses the space of fuse.The application in fuse of various sensor, electronic module, the volume of safety protection device is compressed further, and in recent years along with the continuous renewal of new technology, MEMS (Micro-Electro-Mechanic System, MEMS) structure becomes a kind of trend, MEMS has that system is microminiaturized, batch production cost is low, integration degree high, the demand of these features and safety protection device miniaturization is very identical, therefore MEMS safety protection device research will become following MEMS fuse research in an important ring.Centrifugal insurance institution, as an important component part of safety protection device, plays important safety effect.Centrifugal insurance institution prevents safety protection device effect of meeting accident in duties processing procedure, in predefined conditions can the mechanism of arming.Traditional centrifugal insurance institution mainly comprises compression cylinder spring and centrifugal-block, and assembling link is loaded down with trivial details and take up room large, the serious miniaturization limiting safety protection device.Therefore, be badly in need of a kind of centrifugal insurance institution being applicable to MEMS safety protection device, meeting the miniaturization of safety protection device, while reducing assembling link, realize all functions of conventional centrifugal insurance institution.
Summary of the invention
For above problems of the prior art, the invention provides and a kind ofly exempt from the centrifugal insurance institution of assembling plate formula MEMS for what rotate ammunition, have size small, be easy to batch production, cost is low, integrated with substrate processes and exempt from advantages such as assembling, and can realize all functions of traditional centrifugal insurance institution.
The object of the present invention is to provide a kind of centrifugal insurance institution of MEMS for rotating in the safety protection device of ammunition.
Safety protection device is included in the slide block of fuze body inside, substrate, deck, dop, latch-down baffle, spring and propagation of explosion hole; Wherein, substrate is arranged on the inner surface of fuze body, one end mounting spring of substrate, and another arranges deck; One end of slide block is connected on substrate by spring, and the position that the other end of slide block is corresponding with deck is provided with dop; The top of slide block is provided with top groove, and the latch-down baffle being arranged on substrate top imbeds the top of slide block by top groove; Slide block arranges propagation of explosion hole.Under duties treatment state, propagation of explosion hole and propagation of explosion channel separation.
Safety protection device in fuse is between the responsive medicine and primer of priming system, and the passage at responsive medicine and primer place is called propagation of explosion passage.When being in duties state, the propagation of explosion hole in safety protection device and propagation of explosion channel separation, safety protection device guarantees that primer can not by unintended detonation; When ammunition is launched, the propagation of explosion hole in safety protection device and propagation of explosion passage align, and safety protection device arming, fuse enters arm-to-arm.
Centrifugal insurance institution of the present invention is integrated with deck, latch-down baffle and substrate to process, and form an entirety, centrifugal insurance institution comprises: spring beam, centrifugal mass block, centrifugal baffle plate and bottom groove; Wherein, one end of spring beam is connected with substrate, and the other end connects centrifugal mass block; The top of centrifugal mass block is connected centrifugal baffle plate; The position that the bottom of slide block is corresponding with centrifugal baffle plate is provided with bottom groove, and centrifugal baffle plate embeds the bottom of slide block by bottom groove; Under peacetime state, centrifugal baffle plate, by the constraint of spring beam, remains on the bottom groove place of slide block, and slide block is subject to the common constraint of centrifugal baffle plate and latch-down baffle, is limited in initial position, propagation of explosion hole and propagation of explosion channel separation; In transmit state, centrifugal mass block is subject to centrifugal force, and drive the centrifugal baffle plate be connected with it to depart from bottom groove, and the bottom of centrifugal mass block contacts with fuze body, remove the constraint to slide block, latch-down baffle departs from top groove simultaneously, removes the constraint to slide block, slide block moves until dop snaps in deck along the direction of spring and deck line, and propagation of explosion hole and propagation of explosion passage align; Do not remove the constraint of slide block due to latch-down baffle after ammunition is launched on time and normally do not get angry, when ammunition lands and stops the rotation, spring beam drives centrifugal mass block and centrifugal baffle plate to be returned to initial position, and retrains slide block, thus ensures the safety after the unexpected misfire of ammunition.
Centrifugal insurance institution of the present invention is flat, can adopt silica-based processes, also can adopt Ni-based technique or retrofit processes.
The material of spring beam adopts silicon, nickel or beryllium-bronze.When entering emission state, ammunition High Rotation Speed, centrifugal mass block is subject to centrifugal force, thus spring beam bending, and drive the centrifugal baffle plate be connected with centrifugal mass block to depart from bottom groove, the bottom of final centrifugal mass block contacts with fuze body, make spring beam that large distortion not occur, thus after transmitting due to latch-down baffle do not remove on time to the constraint of slide block normal get angry after, spring beam can keep enough resiliences, the centrifugal baffle plate driving mass and be connected with it, comes back to bottom groove, constraint slide block.
Under peacetime state, centrifugal baffle plate, by the constraint of spring beam, remains on the bottom groove place of slide block, and slide block is subject to the common constraint of centrifugal baffle plate and latch-down baffle, is limited in initial position, propagation of explosion hole and propagation of explosion channel separation; When duties process at ordinary times is surprisingly fallen, when falling position just makes centrifugal insurance institution depart from bottom groove, centrifugal mass block drives the centrifugal baffle plate be connected with it to disengaging bottom groove, because drop-out time is very of short duration, centrifugal mass block just has a small disturbance, is just returned to origin-location rapidly, when falling position just makes slide block move to the line along spring and deck, slide block drives bottom groove to clash into centrifugal baffle plate, the motion of centrifugal baffle slide block translation; When duties process is surprisingly rolled, the centrifugal force rolled is not enough to make spring beam produce large amount of deflection, thus operative constraint slide block is at initial position, thus in duties process, even if latch-down baffle surprisingly removes the constraint to slide block, occurring falling or rolling, centrifugal insurance institution still can ensure safety protection device safety.Under ammunition emission state, by Centrifugal Environment effect, centrifugal mass block overcomes spring beam constraint by large centrifugal force is moved laterally, centrifugal mass block drives the centrifugal baffle plate be connected with it to depart from bottom groove simultaneously, remove the constraint to slide block, and contact with fuze body, the Centrifugal Environment duration of launching due to ammunition is longer, therefore gives the time arming of slide block abundance; If ammunition is not removed the constraint of slide block due to latch-down baffle after launching and does not normally get angry on time, when ammunition lands and stops the rotation, spring beam drives centrifugal mass block and centrifugal baffle plate to be returned to initial position, and retrains slide block, thus ensures the safety after the unexpected misfire of ammunition.
The shape of centrifugal baffle plate can be rectangle, and the bottom groove of slide block is also correspondingly rectangle; Or have projection in the top-side of centrifugal baffle plate, bottom groove and centrifugal baffle plate are complementary figure, and side correspondingly also has projection, better to ensure the restraint performance of centrifugal insurance institution to slide block.
Latch-down baffle in the top groove of slide block is the device by electric control, and after being in emission state, the electric promotional implement connecting latch-down baffle promotes latch-down baffle and leaves top groove, removes the constraint to slide block.But battlefield is complicated electromagnetic environment, can cause the maloperation of electric promotional implement, therefore adopt the centrifugal insurance institution of machinery, if the unexpected arming of electric promotional implement, centrifugal insurance institution can ensure the safety of safety protection device.
The present invention adopts spring beam, if ammunition is not removed the constraint of slide block due to latch-down baffle after launching and does not normally get angry on time, because fuze body is to the constraint of centrifugal insurance institution, causes spring beam that large distortion does not occur, and keep enough resiliences, when ammunition lands, stop the rotation, spring beam drives centrifugal mass block and centrifugal baffle plate to be returned to initial position, and namely centrifugal baffle plate embeds in the bottom groove of slide block again, and retrain slide block, thus ensure the safety after the unexpected misfire of ammunition.
Another object of the present invention is the insurance method providing a kind of centrifugal insurance institution of the MEMS for rotating ammunition.
The insurance method of the centrifugal insurance institution of the MEMS for rotating ammunition of the present invention, comprises following state:
1) under peacetime state, centrifugal baffle plate, by the constraint of spring beam, remains on the bottom groove place of slide block, and slide block is subject to the common constraint of centrifugal baffle plate and latch-down baffle, is limited in initial position, propagation of explosion hole and propagation of explosion channel separation;
2) under state is surprisingly fallen in duties process, move to centrifugal mass Block direction along slide block when falling direction, when making centrifugal insurance institution depart from bottom groove, centrifugal mass block drives the centrifugal baffle plate be connected with it to depart from the bottom groove of slide block, because drop-out time is very of short duration, centrifugal mass block just has a small disturbance, just be returned to origin-location rapidly, move to deck line direction along spring when falling direction, when slide block drives bottom groove to clash into centrifugal baffle plate, the motion laterally of centrifugal baffle slide block, limit slide block at initial position, propagation of explosion hole and propagation of explosion channel separation,
3) under the unexpected rolling condition of duties process, the centrifugal force of rolling is not enough to make spring beam produce large amount of deflection, and centrifugal baffle plate is in the bottom groove of slide block, limits slide block at initial position, propagation of explosion hole and propagation of explosion channel separation;
4) in transmit state, ammunition High Rotation Speed, centrifugal mass block is subject to centrifugal force, and drives the centrifugal baffle plate be connected with it to move laterally, and the bottom of centrifugal mass block contacts with fuze body, remove the constraint to slide block, the electric promotional implement connecting latch-down baffle promotes latch-down baffle and leaves top groove, and the pulling force that slide block overcomes spring moves laterally, until dop snaps in deck, propagation of explosion hole and propagation of explosion passage align, safety protection device arming, and fuse enters arm-to-arm;
5) after transmitting because latch-down baffle is not removed the constraint of slide block and not under normally ignition state on time, when ammunition lands and stops the rotation, spring beam drives centrifugal mass block and centrifugal baffle plate to be returned to initial position, and retrains slide block, thus ensures the safety after the unexpected misfire of ammunition.
The present invention adopts the spring beam of integration processing on substrate to connect centrifugal mass block, the centrifugal baffle plate that centrifugal mass block is connected embeds the bottom groove constraint slide block of slide block, when surprisingly falling or rolling appears in duties process, spring beam can ensure that centrifugal mass block and the centrifugal baffle plate that is connected with it are at initial position, thus guarantee the constraint of centrifugal baffle plate to slide block, make propagation of explosion hole and propagation of explosion channel separation, guarantee safety protection device safety; Occur abnormal if get angry, spring beam still can drive the centrifugal baffle plate be connected with centrifugal mass block to get back to initial position and retrain slide block, thus ensures the safety after the unexpected misfire of ammunition.
Advantage of the present invention:
1, applicability is wide, is applicable in the MEMS safety protection device of various rotation ammunition;
2, integratedly with substrate to process, decrease assembling link;
3, be convenient to modularization, General design, be easy to batch production, with low cost.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of embodiment one under peacetime state for rotating the centrifugal insurance institution of MEMS in the safety protection device of ammunition of the present invention, wherein, a () is the profile perpendicular to fuze body axis, (b) is the profile along C-C ' line in (a);
Fig. 2 is the schematic diagram of the centrifugal insurance institution arming of the embodiment one for rotating the centrifugal insurance institution of MEMS in the safety protection device of ammunition of the present invention;
Fig. 3 is the schematic diagram of the safety protection device arming of the embodiment one for rotating the centrifugal insurance institution of MEMS in the safety protection device of ammunition of the present invention, wherein, a () is the profile perpendicular to fuze body axis, (b) is the profile along D-D ' line in (a);
Fig. 4 is the schematic diagram of embodiment two under peacetime state for rotating the centrifugal insurance institution of MEMS in the safety protection device of ammunition of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, by embodiment, the present invention will be further described.
Embodiment one
As shown in Figure 1, in the present embodiment, safety protection device is included in the slide block 6 of fuze body 1 inside, substrate 7, deck 8, dop 9, latch-down baffle 10, spring 11 and propagation of explosion hole 12; Wherein, substrate 7 is arranged on the inner surface of fuze body 1, one end mounting spring 11 of substrate 7, and adopt MEMS spring, another arranges deck 8; One end of slide block is connected on substrate by spring, and the position that the other end of slide block is corresponding with deck is provided with dop; The top of slide block is provided with top groove, and the latch-down baffle being arranged on substrate top imbeds the top of slide block by blind recess; Slide block arranges propagation of explosion hole.Under duties treatment state, propagation of explosion hole and propagation of explosion channel separation, as shown in Fig. 1 (b).
As shown in Fig. 1 (b), the safety protection device in fuse is between the responsive medicine 13 and primer 14 of priming system, and the passage at responsive medicine 13 and primer 14 place is called propagation of explosion passage.When being in duties state, the propagation of explosion hole in safety protection device and propagation of explosion channel separation, safety protection device guarantees that primer can not by unintended detonation; When the propagation of explosion hole 12 in safety protection device and propagation of explosion passage are to timing, safety protection device arming, fuse enters arm-to-arm, as shown in Fig. 3 (b).
As shown in Figure 1, centrifugal insurance institution of the present invention is integrated with deck 8, latch-down baffle 10 and substrate 7 to process, and centrifugal insurance institution comprises: spring beam 2, centrifugal mass block 3, centrifugal baffle plate 4 and bottom groove 5; Wherein, one end of spring beam 2 is connected with substrate 7, and the other end connects centrifugal mass block 3; The top of centrifugal mass block 3 is connected centrifugal baffle plate 4; The position that the bottom of slide block 6 is corresponding with centrifugal baffle plate is provided with bottom groove 5, and centrifugal baffle plate 4 embeds the bottom of slide block by bottom groove 5; Under peacetime state, centrifugal baffle plate 4, by the constraint of spring beam 2, remains on bottom groove 5 place of slide block, and slide block 6 is subject to the common constraint of centrifugal baffle plate 4 and latch-down baffle 10, is limited in initial position, propagation of explosion hole 12 and propagation of explosion channel separation.Under state is surprisingly fallen in duties process, when falling direction along moving from slide block to centrifugal mass Block direction, namely along the A direction in Fig. 1 (a), when making centrifugal insurance institution depart from bottom groove, centrifugal mass block 3 drives the centrifugal baffle plate 4 be connected with it to depart from the bottom groove 5 of slide block, because drop-out time is very of short duration, centrifugal mass block 3 just has a small disturbance, is just returned to origin-location rapidly; Move to deck line direction along spring when falling direction, namely along the B direction in Fig. 1 (a), when slide block 6 drives bottom groove 5 to clash into centrifugal baffle plate 4, centrifugal baffle plate 4 stops the horizontal movement of slide block 6, limit slide block 6 at initial position, propagation of explosion hole 12 and propagation of explosion channel separation; As shown in Figure 2, under the unexpected rolling condition of duties process, the centrifugal force of rolling is not enough to make spring beam 2 produce large amount of deflection, and centrifugal baffle plate 4 is in the bottom groove 5 of slide block 6, limits slide block 6 at initial position, propagation of explosion hole 12 and propagation of explosion channel separation.Therefore, when duties process at ordinary times, even if latch-down baffle surprisingly removes the constraint to slide block, centrifugal insurance institution also can ensure that safety protection device is in safety position under there is various situation.
Under ammunition emission state, by Centrifugal Environment effect, centrifugal mass block 3 overcomes spring beam 2 constraint by large centrifugal force is moved laterally, centrifugal mass block 3 drives the centrifugal baffle plate 4 be connected with it to move laterally simultaneously, remove the constraint to slide block 6, and contact with fuze body 1, centrifugal insurance institution removes, as shown in Figure 2; The Centrifugal Environment duration of launching due to ammunition is longer, therefore gives the time arming of slide block 6 abundance, and the propagation of explosion hole 12 in safety protection device aligns with propagation of explosion passage, and fuse enters arm-to-arm, as shown in Figure 3.
Embodiment two
In embodiment one, the shape of centrifugal baffle plate 4 is rectangle, and the bottom groove 5 of slide block is also correspondingly rectangle.In the present embodiment, as shown in Figure 4, the top-side of centrifugal baffle plate 4 has projection, and bottom groove 5 and centrifugal baffle plate are complementary figure, and side correspondingly also has projection, better to ensure the restraint performance of centrifugal insurance institution to slide block 6.
It is finally noted that, the object publicizing and implementing mode is to help to understand the present invention further, but it will be appreciated by those skilled in the art that: without departing from the spirit and scope of the invention and the appended claims, various substitutions and modifications are all possible.Therefore, the present invention should not be limited to the content disclosed in embodiment, and the scope that the scope of protection of present invention defines with claims is as the criterion.

Claims (6)

1., for rotating the centrifugal insurance institution of MEMS in the safety protection device of ammunition, described safety protection device is included in the slide block of fuze body inside, substrate, deck, dop, latch-down baffle, spring and propagation of explosion hole; Wherein, substrate is arranged on the inner surface of fuze body, one end mounting spring of substrate, and another arranges deck; One end of slide block is connected on substrate by spring, and the position that the other end of slide block is corresponding with deck is provided with dop; The top of slide block is provided with top groove, and the latch-down baffle being arranged on substrate top imbeds the top of slide block by top groove; Slide block arranges propagation of explosion hole, it is characterized in that, described centrifugal insurance institution is integrated with deck, latch-down baffle and substrate to process, and form an entirety, described centrifugal insurance institution comprises: spring beam, centrifugal mass block, centrifugal baffle plate and bottom groove; Wherein, one end of spring beam is connected with substrate, and the other end connects centrifugal mass block; The top of centrifugal mass block is connected centrifugal baffle plate; The position that the bottom of slide block is corresponding with centrifugal baffle plate is provided with bottom groove, and centrifugal baffle plate embeds the bottom of slide block by bottom groove; Under peacetime state, centrifugal baffle plate, by the constraint of spring beam, remains on the bottom groove place of slide block, and slide block is subject to the common constraint of centrifugal baffle plate and latch-down baffle, is limited in initial position, propagation of explosion hole and propagation of explosion channel separation; In transmit state, centrifugal mass block is subject to centrifugal force, and drive the centrifugal baffle plate be connected with it to depart from bottom groove, and the bottom of centrifugal mass block contacts with fuze body, remove the constraint to slide block, latch-down baffle departs from top groove simultaneously, removes the constraint to slide block, slide block moves until dop snaps in deck along the direction of spring and deck line, and propagation of explosion hole and propagation of explosion passage align; Do not remove the constraint of slide block due to latch-down baffle after ammunition is launched on time and normally do not get angry, when ammunition lands and stops the rotation, spring beam drives centrifugal mass block and centrifugal baffle plate to be returned to initial position, and retrains slide block.
2. centrifugal insurance institution as claimed in claim 1, is characterized in that, described centrifugal insurance institution is flat, adopts silica-based processes, or adopts Ni-based technique or retrofit processes.
3. centrifugal insurance institution as claimed in claim 1, is characterized in that, the material of described spring beam adopts silicon, nickel or beryllium-bronze.
4. centrifugal insurance institution as claimed in claim 1, is characterized in that, the shape of described centrifugal baffle plate is rectangle, and the bottom groove of slide block is also correspondingly rectangle.
5. centrifugal insurance institution as claimed in claim 1, is characterized in that, has projection in the top-side of described centrifugal baffle plate, and bottom groove and centrifugal baffle plate are complementary figure, and side correspondingly also has projection.
6. an insurance method for the centrifugal insurance institution of the MEMS for rotating ammunition, is characterized in that, described insurance method comprises following state:
1) under peacetime state, centrifugal baffle plate, by the constraint of spring beam, remains on the bottom groove place of slide block, and slide block is subject to the common constraint of centrifugal baffle plate and latch-down baffle, is limited in initial position, propagation of explosion hole and propagation of explosion channel separation;
2) under state is surprisingly fallen in duties process, move to centrifugal mass Block direction along slide block when falling direction, when making centrifugal insurance institution depart from bottom groove, centrifugal mass block drives the centrifugal baffle plate be connected with it to depart from the bottom groove of slide block, because drop-out time is very of short duration, centrifugal mass block just has a small disturbance, just be returned to origin-location rapidly, move to deck line direction along spring when falling direction, when slide block drives bottom groove to clash into centrifugal baffle plate, the motion laterally of centrifugal baffle slide block, limit slide block at initial position, propagation of explosion hole and propagation of explosion channel separation,
3) under the unexpected rolling condition of duties process, the centrifugal force of rolling is not enough to make spring beam produce large amount of deflection, and centrifugal baffle plate is in the bottom groove of slide block, limits slide block at initial position, propagation of explosion hole and propagation of explosion channel separation;
4) in transmit state, ammunition High Rotation Speed, centrifugal mass block is subject to centrifugal force, and drives the centrifugal baffle plate be connected with it to move laterally, and the bottom of centrifugal mass block contacts with fuze body, remove the constraint to slide block, the electric promotional implement connecting latch-down baffle promotes latch-down baffle and leaves top groove, and the pulling force that slide block overcomes spring moves laterally, until dop snaps in deck, propagation of explosion hole and propagation of explosion passage align, safety protection device arming, and fuse enters arm-to-arm;
5) after transmitting because latch-down baffle is not removed the constraint of slide block and not under normally ignition state on time, when ammunition lands and stops the rotation, spring beam drives centrifugal mass block and centrifugal baffle plate to be returned to initial position, and retrains slide block, thus ensures the safety after the unexpected misfire of ammunition.
CN201510061978.3A 2015-02-05 2015-02-05 A kind of centrifugal insurance institution of the MEMS for rotating ammunition and insurance method thereof Expired - Fee Related CN104613828B (en)

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