CN112461066B - Recoverable ball type MEMS (micro-electromechanical systems) safety system applied to high-overload and high-rotation environment and method thereof - Google Patents
Recoverable ball type MEMS (micro-electromechanical systems) safety system applied to high-overload and high-rotation environment and method thereof Download PDFInfo
- Publication number
- CN112461066B CN112461066B CN202011309331.5A CN202011309331A CN112461066B CN 112461066 B CN112461066 B CN 112461066B CN 202011309331 A CN202011309331 A CN 202011309331A CN 112461066 B CN112461066 B CN 112461066B
- Authority
- CN
- China
- Prior art keywords
- rotor
- mems
- pin
- ammunition
- spring pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C19/00—Details of fuzes
Abstract
The invention discloses a recoverable ball type MEMS (micro-electromechanical systems) safety system applied to a high-overload and high-rotation environment and a method thereof. The invention adopts a small ball limiting spring pin, a rotor limiting spring pin and an electromagnetic pin puller for limiting, pushes a driving rod to drive an MEMS rotor to rotate under the action of centrifugal force generated by high-speed rotation of ammunition through rolling a small ball along a rolling guide groove, and controls the rotation of the MEMS rotor to be fixed for 180 degrees through switching on and off the electromagnetic pin puller, thereby realizing the recoverable solution protection function; the invention adopts the MEMS safety system capable of recovering the ball type solution, and has the advantages of small structural space occupation, high reliability, simple part processing technology and the like from the aspects of ammunition fuse design and processing applied to high-overload and high-rotation environment; secondly, the environmental force insurance is completely utilized, the occurrence of abnormal functions in some situations due to the driving modes such as electricity or electric heat is avoided, and the working safety and reliability of the system are improved.
Description
Technical Field
The invention relates to an ammunition safety technology in a high-overload high-rotation environment, in particular to a recoverable ball type MEMS safety system applied to the high-overload high-rotation environment and an implementation method thereof.
Background
Modern weapons and ammunition are developing in a smart and intelligent direction, and the miniaturization and intelligence of fuses are also the main research schemes of a plurality of research institutions. The whole process of striking the target by the ammunition comprises a launching stage, a service processing stage, target finding and target striking, the traditional fuze safety system does not have a restorable function, and the ammunition still detonates when the attack instruction of the ammunition is cancelled, so that the design of the safety system with the restorable function has important significance. The fuze safety system is mainly applied to a spring-mass system, and the electromagnetic drive is matched with the spring-mass system to realize the restorable function of the safety system. Compared with the conventional spring-mass, the micro-rotor is a better choice, has higher moving speed and smaller space occupation (under the same loading) and is not influenced by any direction inertia effect.
Disclosure of Invention
The invention provides a recoverable ball type MEMS (micro electro mechanical system) safety system applied to a high-overload high-rotation environment and an implementation method thereof, in order to not influence the safety of a fuse and the action reliability of a release control system.
One objective of the present invention is to provide a recoverable ball MEMS security system for use in high overload and high spin environments.
The invention relates to a recoverable ball type MEMS safety system applied to a high-overload high-rotation environment, which is arranged between a micro initiating explosive and a next-stage charge of an ammunition, wherein the surface of the recoverable ball type MEMS safety system is vertical to a launching direction; in the ammunition, the initiating explosive device energy conversion element and the micro initiating explosive are aligned with the next-stage explosive charging position, and the initiating explosive device energy conversion element is connected to a micro control chip of the ammunition through a lead; ammunition is used in high overload and high rotation environments.
The invention relates to a recoverable ball type MEMS safety system applied to a high-overload and high-rotation environment, which comprises: the device comprises a substrate, a rolling guide groove, a rolling small ball, a small ball spring pin assembling groove, a small ball limiting spring pin, an axial stator, a spring gasket, an MEMS rotor, a fixing cap, a rotor spring pin assembling groove, a rotor spring pin assembling hole, a limiting buckle, a rotor limiting spring pin, a rotor limiting groove, an electromagnetic pin puller, a driving rod, a limiting mechanism, an explosion transfer hole and an explosion transfer medicine; wherein, the substrate is flat; the upper surface of the substrate is provided with a circular rolling guide groove; the rolling small ball is positioned in the rolling guide groove, and the diameter of the rolling small ball is not more than the width of the rolling guide groove; a small ball spring pin assembling groove is formed in the rolling guide groove, a small ball limiting spring pin is arranged in the small ball spring pin assembling groove, the surface of the small ball limiting spring pin is higher than the rolling guide groove, and a limiting buckle is arranged on the inner side wall of the small ball spring pin assembling groove; an axial stator is arranged in the center of the base plate, is coaxial with the rolling guide groove and is positioned on the central shaft of the ammunition; the axial stator is sequentially sleeved with an annular spring gasket and an MEMS rotor, the diameter of the MEMS rotor is smaller than the inner diameter of the rolling guide groove, the MEMS rotor can rotate around the axial stator, and the spring gasket reduces the friction force during rotation, so that the MEMS rotor is more flexible in the rotation process on the substrate; a fixing cap is arranged at the top end of the axial stator, and the radius of the fixing cap is larger than that of the axial stator, so that the axial stator is limited to rotate in a plane parallel to the base plate; a rotor spring pin assembling groove is formed in the substrate, a rotor spring pin assembling hole is formed in the corresponding position on the MEMS rotor, a rotor limiting spring pin is arranged in the rotor spring pin assembling groove and the rotor spring pin assembling hole, the upper end of the rotor limiting spring pin is higher than the lower surface of the MEMS rotor, and a limiting buckle is arranged on the inner side wall of the rotor spring pin assembling groove; two driving rods are arranged at the edge of the MEMS rotor, the connecting line of the two driving rods passes through the central shaft, and the front ends of the driving rods exceed the average radius of the rolling guide grooves; a limiting mechanism is arranged on the front side edge of each driving rod in the centrifugal force direction; two rotor limiting grooves are arranged in the rolling guide groove, and the connecting line of the two rotor limiting grooves passes through the central shaft; an electromagnetic pin puller is arranged in each rotor limiting groove and connected to a micro-control chip in the ammunition; under the non-electrified state, the top end of the pin of the electromagnetic pin puller is higher than the lower surface of the driving rod, and the shape of the rear edge of the pin of the electromagnetic pin puller along the centrifugal force direction is complementary with that of the limiting mechanism on the driving rod; the base plate is provided with a detonation transfer hole, the distances between the detonation transfer hole and the next-stage explosive charge from the central shaft are equal, and the detonation transfer hole is positioned on a straight line passing through the central shaft and where the two rotor limiting grooves are positioned; before ammunition is launched, the rolling small ball is located behind the small ball limiting spring pin along the centrifugal force direction, the small ball limiting spring pin limits the position of the rolling small ball to be fixed, the rotor limiting spring pin extends out of the rotor spring pin assembling hole to limit the MEMS rotor to be fixed, the electromagnetic pin puller is in a natural state without being electrified, the electromagnetic pin puller is located in a limiting mechanism of the driving rod and further limits the MEMS rotor to not rotate, the explosion transfer hole and the next-stage explosive charge are respectively located on two sides of the central shaft at the moment, namely the explosion transfer hole and the next-stage explosive charge are staggered, and the ball type restorable MEMS safety system is in a safe state; when ammunition is launched, ammunition starts to generate displacement under the action of huge chamber pressure in the launching tube and rotates at a high speed under the action of rifling in the launching tube, the restorable ball type MEMS safety system senses recoil overload at first, recoil force enables the small ball limiting spring pin and the rotor limiting spring pin to move in the small ball spring pin assembling groove and the rotor spring pin assembling groove respectively and to be limited in the small ball spring pin assembling groove and the rotor spring pin assembling groove respectively by respective limiting buckles, the limitation on rolling small balls is removed, and the ammunition is in a service processing state at the moment; the rolling ball moves along the rolling guide groove under the action of rotating centrifugal force and impacts a driving rod on the MEMS rotor; when the ammunition finds a target and attacks the target in a service processing state, the micro-control chip powers on the electromagnetic pin puller to ensure that the pin on the electromagnetic pin puller is sucked into the electromagnetic pin puller, so that the pin exits from the limiting mechanism, the top end of the pin is lower than the lower surface of the driving rod, the constraint of the electromagnetic pin puller on the driving rod is removed, and the rotation of the MEMS rotor is not limited any more; the rolling small balls push the driving rod to drive the MEMS rotor to start rotating under the action of centrifugal force generated by high-speed rotation of ammunition; after the MEMS rotor rotates, the micro-control chip immediately powers off the electromagnetic pin puller, the micro-control chip controls the time t from power on to power off of the electromagnetic pin puller to be longer than the time required by the rolling ball to push the driving rod to rotate through the pin on the electromagnetic pin puller and shorter than the time required by the rotation of the MEMS rotor by 180 degrees, and the pin on the electromagnetic pin puller stretches out of the electromagnetic pin puller again after the power off; the rolling small ball pushes the driving rod to drive the rotor to rotate at a high speed along with the ammunition, when the rotor rotates to 180 degrees, the limiting mechanism on the front side of the driving rod forms restraint with the electromagnetic pin puller again to limit the rotation of the MEMS rotor, the booster hole is aligned with the next-stage explosive charge, and the ammunition enters an attack state at the moment, so that safe and reliable delay protection of the ammunition is realized; when the target needs to be attacked, the micro control chip powers on the energy conversion element of the initiating explosive device and generates an electric explosion effect, the micro initiating explosive is initiated, the next-stage explosive is initiated through the booster explosive, and the ammunition explodes; when an attack target needs to be abandoned, the micro-control chip re-energizes the electromagnetic pin puller, the limitation on the MEMS rotor is removed again, the rolling small ball pushes the driving rod to drive the rotor to rotate under the action of centrifugal force generated by high-speed rotation of ammunition, the micro-control chip immediately powers off the electromagnetic pin puller after the MEMS rotor rotates, the time t from the energization to the power-off of the micro-control chip controls the electromagnetic pin puller to meet the requirement that the rolling small ball pushes the driving rod to rotate through a pin on the electromagnetic pin puller and is less than the time required by 180-degree rotation of the MEMS rotor, and the pin on the electromagnetic pin puller stretches out of the electromagnetic pin puller again after the power-off; when the rolling small balls push the driving rod to drive the rotor to rotate at a high speed along with the ammunition and rotate to 180 degrees, the electromagnetic pin puller and the driving rod form restraint again to limit the rotation of the MEMS rotor, the explosion transmission hole is dislocated with the next-stage explosive charge again, the ammunition returns to a service processing state, and the restorable function of the restorable ball type MEMS safety system is realized.
The thickness of the substrate is 1000 +/-50 mu m, the thickness of the MEMS rotor is 250 +/-20 mu m, the thickness of the spring gasket is 60 +/-10 mu m, the width and the depth of the rolling guide groove are 1.5 +/-0.2 mm and 400 +/-20 mu m respectively, and the thickness of the driving rod is 250 +/-20 mu m.
The substrate, the rolling small ball, the spring gasket, the axial stator and the limiting spring pin are all made of metal nickel-based materials, and the MEMS rotor and the driving rod on the rotor are made of silicon-based brittle materials.
The limiting buckle is in a barb shape, the barb points to the bottom of the small ball spring pin assembling groove or the rotor spring pin assembling groove, and after the small ball limiting spring pin or the rotor limiting spring pin moves downwards under the action of recoil force, the barb on the inner wall of the small ball spring pin assembling groove or the rotor spring pin assembling groove blocks the upper surface of the small ball limiting spring pin or the rotor limiting spring pin to limit the movement of the small ball limiting spring pin or the rotor limiting spring pin.
The pin of the electromagnetic pin puller is cylindrical, and the limiting mechanism is a semi-cylindrical groove.
The invention also aims to provide an implementation method of the recoverable ball type MEMS safety system applied to a high-overload and high-rotation environment.
The invention discloses a method for realizing a recoverable ball type MEMS safety system applied to a high-overload and high-rotation environment, which comprises the following steps:
1) before ammunition is launched, the rolling small ball is located behind the small ball limiting spring pin along the centrifugal force direction, the small ball limiting spring pin limits the position of the rolling small ball to be fixed, the rotor limiting spring pin extends out of the rotor spring pin assembling hole to limit the MEMS rotor to be fixed, the electromagnetic pin puller is in a natural state without being electrified, the electromagnetic pin puller is located in a limiting mechanism of the driving rod and further limits the MEMS rotor to not rotate, the explosion transfer hole and the next-stage explosive charge are respectively located on two sides of the central shaft at the moment, namely the explosion transfer hole and the next-stage explosive charge are staggered, and the ball type restorable MEMS safety system is in a safe state;
2) when ammunition is launched, ammunition starts to generate displacement under the action of huge chamber pressure in the launching tube and rotates at a high speed under the action of rifling in the launching tube, the restorable ball type MEMS safety system senses recoil overload at first, recoil force enables the small ball limiting spring pin and the rotor limiting spring pin to move in the small ball spring pin assembling groove and the rotor spring pin assembling groove respectively and to be limited in the small ball spring pin assembling groove and the rotor spring pin assembling groove respectively by respective limiting buckles, the limitation on rolling small balls is removed, and the ammunition is in a service processing state at the moment;
3) the rolling ball moves along the rolling guide groove under the action of centrifugal force generated by rotation of the ammunition and impacts a driving rod on the MEMS rotor;
4) when the ammunition finds a target and attacks the target in a service processing state, the micro-control chip powers on the electromagnetic pin puller to enable the pin on the electromagnetic pin puller to be sucked into the electromagnetic pin puller, so that the pin exits from the limiting mechanism, the top end of the pin is lower than the lower surface of the driving rod, the constraint of the electromagnetic pin puller on the driving rod is removed, and the rotation of the MEMS rotor is not limited any more; the rolling small balls push the driving rod to drive the MEMS rotor to start rotating under the action of centrifugal force generated by high-speed rotation of ammunition;
5) after the MEMS rotor rotates, the micro-control chip immediately powers off the electromagnetic pin puller, the micro-control chip controls the time t from power on to power off of the electromagnetic pin puller to be longer than the time required by the rolling ball to push the driving rod to rotate through the pin on the electromagnetic pin puller and shorter than the time required by the rotation of the MEMS rotor by 180 degrees, and the pin on the electromagnetic pin puller stretches out of the electromagnetic pin puller again after the power off;
6) the rolling small ball pushes the driving rod to drive the rotor to rotate at a high speed along with the ammunition, when the rotor rotates to 180 degrees, the limiting mechanism on the front side of the driving rod forms restraint with the electromagnetic pin puller again to limit the rotation of the MEMS rotor, the booster hole is aligned with the next-stage explosive charge, and the ammunition enters an attack state at the moment, so that safe and reliable delay protection of the ammunition is realized;
7) detonating or returning to a service processing state according to actual needs:
a) when the target needs to be attacked, the micro control chip powers on the energy conversion element of the initiating explosive device and generates an electric explosion effect, the micro initiating explosive is initiated, the next-stage explosive is initiated through the booster explosive, and the ammunition explodes;
b) when an attack target needs to be abandoned, the micro-control chip re-energizes the electromagnetic pin puller, the limitation on the MEMS rotor is removed again, the rolling small ball pushes the driving rod to drive the rotor to rotate under the action of centrifugal force generated by high-speed rotation of ammunition, the micro-control chip immediately powers off the electromagnetic pin puller after the MEMS rotor rotates, the time t from the energization to the power-off of the micro-control chip controls the electromagnetic pin puller to meet the requirement that the rolling small ball pushes the driving rod to rotate through a pin on the electromagnetic pin puller and is less than the time required by 180-degree rotation of the MEMS rotor, and the pin on the electromagnetic pin puller stretches out of the electromagnetic pin puller again after the power-off; when the rolling small balls push the driving rod to drive the rotor to rotate at a high speed along with the ammunition and rotate to 180 degrees, the electromagnetic pin puller and the driving rod form restraint again to limit the rotation of the MEMS rotor, the explosion transmission hole is dislocated with the next-stage explosive charge again, the ammunition returns to a service processing state, and the restorable function of the restorable ball type MEMS safety system is realized.
The invention has the advantages that:
the invention adopts the MEMS safety system capable of recovering the ball type solution, and has the advantages of small structural space occupation, high reliability, simple part processing technology and the like from the aspects of ammunition fuse design and processing applied to high-overload and high-rotation environment; secondly, the environmental force insurance is completely utilized, the occurrence of abnormal functions in some situations due to the driving modes such as electricity or electric heat is avoided, and the working safety and reliability of the system are improved.
Drawings
FIG. 1 is a top view of one embodiment of a recoverable ball MEMS security system for high overload and high spin environments of the present invention in a secured state;
FIG. 2 is a schematic view of one embodiment of a recoverable ball MEMS security system for high overload and high spin environments of the present invention with ammunition in a service condition, wherein (a) is a perspective view and (b) is a top view;
FIG. 3 is a top view of a substrate of one embodiment of the recoverable ball MEMS security system for high overload and high spin environments of the present invention;
FIG. 4 is a top view of a MEMS rotor of one embodiment of the recoverable ball MEMS security system of the present invention for use in a high overload high spin environment.
Detailed Description
The invention will be further elucidated by means of specific embodiments in the following with reference to the drawing.
As shown in fig. 1 to 4, the recoverable ball type MEMS security system applied to a high overload and high rotation environment of the present embodiment includes: the device comprises a substrate 1, a rolling guide groove 11, a rolling small ball 2, a small ball spring pin assembling groove 12, a small ball limiting spring pin 21, an axial stator 31, a spring gasket, an MEMS rotor 3, a fixing cap 33, a rotor spring pin assembling groove 13, a rotor spring pin assembling hole 35, a limiting buckle, a rotor limiting spring pin 34, a rotor limiting groove 41, an electromagnetic pin puller 4, a driving rod 5, a limiting mechanism 51, an explosion transfer hole 6 and an explosion transfer medicine; wherein, the substrate 1 is flat; the upper surface of the substrate 1 is provided with a circular rolling guide groove 11; the rolling small ball 2 is positioned in the rolling guide groove 11, and the diameter of the rolling small ball 2 is not more than the width of the rolling guide groove 11; a small ball spring pin assembling groove 12 is arranged in the rolling guide groove 11, a small ball limiting spring pin 21 is arranged in the small ball spring pin assembling groove 12, the surface of the small ball limiting spring pin 21 is higher than the rolling guide groove 11, and a limiting buckle is arranged on the inner side wall of the small ball spring pin assembling groove 12; an axial stator 31 is arranged at the center of the base plate 1, the axial stator 31 is coaxial with the rolling guide groove 11 and is positioned on the central shaft of the ammunition; annular spring gaskets and the MEMS rotor 3 are sequentially sleeved on the axial stator 31, the diameter of the MEMS rotor 3 is smaller than the inner diameter of the rolling guide groove 11, the MEMS rotor 3 can rotate around the axial stator 31, and the spring gaskets reduce the friction force during rotation, so that the MEMS rotor 3 can rotate on the substrate 1 more flexibly; a fixing cap 33 is arranged at the top end of the axial stator 31, the radius of the fixing cap 33 is larger than that of the axial stator 31, so that the axial stator 31 is limited to rotate in a plane parallel to the base plate 1; a rotor spring pin assembling groove 13 is formed in the substrate 1, a rotor spring pin assembling hole 35 is formed in a corresponding position on the MEMS rotor 3, a rotor limiting spring pin 34 is arranged in the rotor spring pin assembling groove 13 and the rotor spring pin assembling hole 35, the upper end of the rotor limiting spring pin 34 is higher than the lower surface of the MEMS rotor 3, and a limiting buckle is arranged on the inner side wall of the rotor spring pin assembling groove 13; two driving rods 5 are arranged at the edge of the MEMS rotor 3, the connecting line of the two driving rods 5 passes through the central shaft, and the front ends of the driving rods 5 exceed the average radius of the rolling guide grooves 11; a limiting mechanism 51 is arranged at the front side edge of each driving rod 5 in the centrifugal force direction; two rotor limiting grooves 41 are arranged in the rolling guide groove 11, and the connecting line of the two rotor limiting grooves 41 passes through the central shaft; an electromagnetic pin puller 4 is arranged in each rotor limiting groove 41, and the electromagnetic pin pullers 4 are connected to a micro-control chip in ammunition; in a non-electrified state, the top end of the pin of the electromagnetic pin remover 4 is higher than the lower surface of the driving rod 5, and the shape of the rear edge of the pin of the electromagnetic pin remover 4 along the centrifugal force direction is complementary with the shape of the limiting mechanism 51 on the driving rod 5; a detonation transfer hole 6 is formed in the base plate 1, the distances between the detonation transfer hole 6 and the next-stage explosive charge from the central shaft are equal, and the detonation transfer hole is located on a straight line passing through the central shaft and where the two rotor limiting grooves 41 are located.
In the present embodiment, the substrate 1 has a thickness of 1000 μm, the guide groove has a depth of 400 μm, the MEMS rotor 3 has a thickness of 250 μm, the spring washer has a thickness of 60 μm, the guide groove has a width and a depth of 1.5mm and 500 μm, respectively, and the driving lever 5 has a thickness of 200 μm. The substrate 1, the rolling small balls 2, the spring gasket, the axial stator 31 and the limiting spring pin are all made of metal nickel-based materials, and the MEMS rotor 3 and the driving rod 5 on the rotor are made of silicon-based brittle materials.
The implementation method of the recoverable ball type MEMS safety system applied to the high overload and high rotation environment comprises the following steps:
1) before ammunition is launched, the rolling small ball 2 is positioned behind the small ball limiting spring pin 21 along the centrifugal force direction, the small ball limiting spring pin 21 limits the position of the rolling small ball 2 to be fixed, the rotor limiting spring pin 34 extends out of the rotor spring pin assembling hole 35 to limit the MEMS rotor 3 to be fixed, the electromagnetic pin remover 4 is in a natural state without being electrified, the electromagnetic pin remover 4 is positioned in the limiting mechanism 51 of the driving rod 5 and further limits the MEMS rotor 3 to not rotate, at the moment, the explosion transfer hole 6 and the next-stage charge are respectively positioned on two sides of the central shaft, namely the explosion transfer hole 6 and the next-stage charge are staggered, and the restorable ball type MEMS safety system is in a safe state, as shown in figure 1;
2) when ammunition is launched, ammunition starts to generate displacement under the action of huge chamber pressure in a launching tube and rotates at a high speed under the action of rifling in the launching tube, the restorable ball type MEMS safety system senses recoil overload at first, recoil force enables the small ball limiting spring pin 21 and the rotor limiting spring pin 34 to move into the small ball spring pin assembling groove 12 and the rotor spring pin assembling groove 13 respectively and be limited in the small ball spring pin assembling groove 12 and the rotor spring pin assembling groove 13 respectively by respective limiting buckles, limitation on the rolling small ball 2 is removed, and the ammunition is in a service processing state at the moment;
3) the rolling ball 2 moves along the rolling guide groove 11 under the centrifugal force of the rotation of the ammunition and impacts the driving rod 5 on the MEMS rotor 3;
4) when the ammunition finds a target and attacks the target in a service processing state, the micro control chip powers on the electromagnetic pin puller 4, so that the pin on the electromagnetic pin puller 4 is sucked into the electromagnetic pin puller 4, the pin exits from the limiting mechanism 51, the top end of the pin is lower than the lower surface of the driving rod 5, the constraint of the electromagnetic pin puller 4 on the driving rod 5 is removed, and the rotation of the MEMS rotor 3 is not limited any more; the rolling small ball 2 pushes the driving rod 5 to drive the MEMS rotor 3 to start rotating under the action of centrifugal force generated by high-speed rotation of ammunition;
5) after the MEMS rotor 3 rotates, the micro control chip immediately powers off the electromagnetic pin remover 4, the micro control chip controls the time t from power on to power off of the electromagnetic pin remover 4 to be longer than the time required by the rolling ball 2 to push the driving rod 5 to rotate through the pin on the electromagnetic pin remover 4 and shorter than the time required by the rotation of the MEMS rotor 3 by 180 degrees, and the pin on the electromagnetic pin remover 4 extends out of the electromagnetic pin remover 4 again after the power off;
6) the rolling small ball 2 pushes the driving rod 5 to drive the rotor to rotate at a high speed along with the ammunition, when the rotor rotates to 180 degrees, the limiting mechanism 51 on the front side of the driving rod 5 forms restraint with the electromagnetic pin puller 4 again to limit the rotation of the MEMS rotor 3, the booster hole 6 is aligned with the next-stage explosive charge, and the ammunition enters an attack state at the moment, as shown in figure 2, an arrow in figure 2 indicates the centrifugal force direction, so that the safe and reliable delayed protection of the ammunition is realized;
7) detonating or returning to a service processing state according to actual needs:
a) when the target needs to be attacked, the micro control chip powers on the energy conversion element of the initiating explosive device and generates an electric explosion effect, the micro initiating explosive is initiated, the next-stage explosive is initiated through the booster explosive, and the ammunition explodes;
b) when an attack target needs to be abandoned, the micro control chip re-energizes the electromagnetic pin puller 4, the limitation on the MEMS rotor 3 is removed again, the rolling small ball 2 pushes the driving rod 5 to drive the rotor to rotate under the action of centrifugal force generated by high-speed rotation of ammunition, the micro control chip immediately powers off the electromagnetic pin puller 4 after the MEMS rotor 3 rotates, the time t from the energization to the power-off of the micro control chip controls the electromagnetic pin puller 4 to be longer than the time required by the rolling small ball 2 to push the driving rod 5 to rotate through a pin on the electromagnetic pin puller 4 and shorter than the time required by the rotation of the MEMS rotor 3 by 180 degrees, and the pin on the electromagnetic pin puller 4 extends out of the electromagnetic pin puller 4 again after the power-off; when the rolling small ball 2 pushes the driving rod 5 to drive the rotor to rotate at a high speed along with the ammunition and rotate to 180 degrees, the electromagnetic pin puller 4 and the driving rod 5 form restraint again to limit the rotation of the MEMS rotor 3, the explosion transfer hole 6 is dislocated with the next-stage explosive charge again, the ammunition returns to a service processing state, and the restorable function of the restorable ball type MEMS safety system is realized.
Finally, it is noted that the disclosed embodiments are intended to aid in further understanding of the invention, but those skilled in the art will appreciate that: various substitutions and modifications are possible without departing from the spirit and scope of the invention and the appended claims. Therefore, the invention should not be limited to the embodiments disclosed, but the scope of the invention is defined by the appended claims.
Claims (6)
1. A recoverable ball type MEMS safety system applied to a high overload and high rotation environment is arranged between a miniature primary explosive and a next-stage charge of an ammunition, and the surface of the recoverable ball type MEMS safety system is perpendicular to a launching direction; in the ammunition, the initiating explosive device energy conversion element and the micro initiating explosive are aligned with the next-stage explosive charging position, and the initiating explosive device energy conversion element is connected to a micro control chip of the ammunition through a lead; ammunition is applied to a high overload and high rotation environment, and is characterized in that the recoverable ball type MEMS safety system applied to the high overload and high rotation environment comprises: the device comprises a substrate, a rolling guide groove, a rolling small ball, a small ball spring pin assembling groove, a small ball limiting spring pin, an axial stator, a spring gasket, an MEMS rotor, a fixing cap, a rotor spring pin assembling groove, a rotor spring pin assembling hole, a limiting buckle, a rotor limiting spring pin, a rotor limiting groove, an electromagnetic pin puller, a driving rod, a limiting mechanism, an explosion transfer hole and an explosion transfer medicine; wherein, the substrate is flat; the upper surface of the substrate is provided with a circular rolling guide groove; the rolling small ball is positioned in the rolling guide groove, and the diameter of the rolling small ball is not more than the width of the rolling guide groove; a small ball spring pin assembling groove is formed in the rolling guide groove, a small ball limiting spring pin is arranged in the small ball spring pin assembling groove, the surface of the small ball limiting spring pin is higher than the rolling guide groove, and a limiting buckle is arranged on the inner side wall of the small ball spring pin assembling groove; an axial stator is arranged in the center of the base plate, is coaxial with the rolling guide groove and is positioned on the central shaft of the ammunition; the axial stator is sequentially sleeved with an annular spring gasket and an MEMS rotor, the diameter of the MEMS rotor is smaller than the inner diameter of the rolling guide groove, the MEMS rotor can rotate around the axial stator, and the spring gasket reduces the friction force during rotation, so that the MEMS rotor is more flexible in the rotation process on the substrate; a fixing cap is arranged at the top end of the axial stator, and the radius of the fixing cap is larger than that of the axial stator, so that the axial stator is limited to rotate in a plane parallel to the base plate; a rotor spring pin assembling groove is formed in the substrate, a rotor spring pin assembling hole is formed in the corresponding position on the MEMS rotor, a rotor limiting spring pin is arranged in the rotor spring pin assembling groove and the rotor spring pin assembling hole, the upper end of the rotor limiting spring pin is higher than the lower surface of the MEMS rotor, and a limiting buckle is arranged on the inner side wall of the rotor spring pin assembling groove; two driving rods are arranged at the edge of the MEMS rotor, the connecting line of the two driving rods passes through the central shaft, and the front ends of the driving rods exceed the average radius of the rolling guide grooves; a limiting mechanism is arranged on the front side edge of each driving rod in the centrifugal force direction; two rotor limiting grooves are arranged in the rolling guide groove, and the connecting line of the two rotor limiting grooves passes through the central shaft; an electromagnetic pin puller is arranged in each rotor limiting groove and connected to a micro-control chip in the ammunition; under the non-electrified state, the top end of the pin of the electromagnetic pin puller is higher than the lower surface of the driving rod, and the shape of the rear edge of the pin of the electromagnetic pin puller along the centrifugal force direction is complementary with that of the limiting mechanism on the driving rod; the base plate is provided with a detonation transfer hole, the distances between the detonation transfer hole and the next-stage explosive charge from the central shaft are equal, and the detonation transfer hole is positioned on a straight line passing through the central shaft and where the two rotor limiting grooves are positioned; before ammunition is launched, the rolling small ball is located behind the small ball limiting spring pin along the centrifugal force direction, the small ball limiting spring pin limits the position of the rolling small ball to be fixed, the rotor limiting spring pin extends out of the rotor spring pin assembling hole to limit the MEMS rotor to be fixed, the electromagnetic pin puller is in a natural state without being electrified, the electromagnetic pin puller is located in a limiting mechanism of the driving rod and further limits the MEMS rotor to not rotate, the explosion transfer hole and the next-stage explosive charge are respectively located on two sides of the central shaft at the moment, namely the explosion transfer hole and the next-stage explosive charge are staggered, and the ball type restorable MEMS safety system is in a safe state; when ammunition is launched, ammunition starts to generate displacement under the action of huge chamber pressure in the launching tube and rotates at a high speed under the action of rifling in the launching tube, the restorable ball type MEMS safety system senses recoil overload at first, recoil force enables the small ball limiting spring pin and the rotor limiting spring pin to move in the small ball spring pin assembling groove and the rotor spring pin assembling groove respectively and to be limited in the small ball spring pin assembling groove and the rotor spring pin assembling groove respectively by respective limiting buckles, the limitation on rolling small balls is removed, and the ammunition is in a service processing state at the moment; the rolling ball moves along the rolling guide groove under the action of rotating centrifugal force and impacts a driving rod on the MEMS rotor; when ammunition finds a target and attacks the target in a service processing state, the micro control chip powers on the electromagnetic pin puller to enable a pin on the electromagnetic pin puller to be sucked into the electromagnetic pin puller, so that the pin exits from the limiting mechanism, the top end of the pin is lower than the lower surface of the driving rod, the constraint of the electromagnetic pin puller on the driving rod is removed, and the rotation of the MEMS rotor is not limited any more; the rolling small balls push the driving rod to drive the MEMS rotor to start rotating under the action of centrifugal force generated by high-speed rotation of ammunition; after the MEMS rotor rotates, the micro-control chip immediately powers off the electromagnetic pin puller, the micro-control chip controls the time t from power on to power off of the electromagnetic pin puller to be longer than the time required by the rolling ball to push the driving rod to rotate through the pin on the electromagnetic pin puller and shorter than the time required by the rotation of the MEMS rotor by 180 degrees, and the pin on the electromagnetic pin puller stretches out of the electromagnetic pin puller again after the power off; the rolling small balls push the driving rod to drive the MEMS rotor to rotate at a high speed along with the ammunition, when the driving rod rotates to 180 degrees, the limiting mechanism on the front side of the driving rod forms restraint with the electromagnetic pin puller again to limit the rotation of the MEMS rotor, the booster hole is aligned with the next-stage explosive charge, and the ammunition enters an attack state at the moment, so that safe and reliable delay protection of the ammunition is realized; when the target needs to be attacked, the micro control chip powers on the energy conversion element of the initiating explosive device and generates an electric explosion effect, the micro initiating explosive is initiated, the next-stage explosive is initiated through the booster explosive, and the ammunition explodes; when an attack target needs to be abandoned, the micro-control chip re-energizes the electromagnetic pin puller, the limitation on the MEMS rotor is removed again, the rolling small ball pushes the driving rod to drive the MEMS rotor to start rotating under the action of centrifugal force generated by high-speed rotation of ammunition, the micro-control chip immediately powers off the electromagnetic pin puller after the MEMS rotor rotates, the time t from the energization to the power-off of the micro-control chip controls the electromagnetic pin puller to meet the requirement that the rolling small ball pushes the driving rod to rotate over a pin on the electromagnetic pin puller and is less than the time required by the rotation of the MEMS rotor for 180 degrees, and the pin on the electromagnetic pin puller stretches out of the electromagnetic pin puller again after the power-off; when the rolling small balls push the driving rod to drive the MEMS rotor to rotate at a high speed along with the ammunition and rotate to 180 degrees, the electromagnetic pin puller and the driving rod form restraint again to limit the rotation of the MEMS rotor, the explosion transmission hole is dislocated with the next-stage explosive charge again, the ammunition returns to a service processing state, and the restorable function of the restorable ball type MEMS safety system is realized.
2. The recoverable ball MEMS security system for high overload and high spin environments of claim 1, wherein the substrate has a thickness of 1000 ± 50 μm, the MEMS rotor has a thickness of 250 ± 20 μm, the spring spacer has a thickness of about 60 ± 10 μm, the rolling guide grooves have a width and a depth of 1.5 ± 0.2mm and 500 ± 30 μm, respectively, and the driving rod has a thickness of 200 ± 20 μm.
3. The recoverable ball MEMS security system for high overload and high spin environments of claim 1, wherein the substrate, the rolling ball, the spring washer, the axial stator, the ball-retaining spring pin, and the rotor-retaining spring pin are all made of a metal nickel-based material; the MEMS rotor and the driving rod on the MEMS rotor are made of silicon-based brittle materials.
4. The recoverable ball MEMS safety system for high overload and high rotation environments of claim 1, wherein the limiting buckle is in a barb shape, the barb points to the bottom of the ball spring pin assembling groove or the rotor spring pin assembling groove, and after the ball limiting spring pin or the rotor limiting spring pin moves downwards under the action of recoil force, the barb on the inner wall of the ball spring pin assembling groove or the rotor spring pin assembling groove clamps the upper surface of the ball limiting spring pin or the rotor limiting spring pin to limit the movement of the ball limiting spring pin or the rotor limiting spring pin.
5. The recoverable ball MEMS security system for use in high overload high spin environments of claim 1, wherein the pin of the electromagnetic pin puller is cylindrical in shape and the stop mechanism is a semi-cylindrical groove.
6. An implementation method of the recoverable ball MEMS security system for high overload and high rotation environment according to claim 1, wherein the implementation method comprises the following steps:
1) before ammunition is launched, the rolling small ball is located behind the small ball limiting spring pin along the centrifugal force direction, the small ball limiting spring pin limits the position of the rolling small ball to be fixed, the rotor limiting spring pin extends out of the rotor spring pin assembling hole to limit the MEMS rotor to be fixed, the electromagnetic pin puller is in a natural state without being electrified, the electromagnetic pin puller is located in a limiting mechanism of the driving rod and further limits the MEMS rotor to not rotate, the explosion transfer hole and the next-stage explosive charge are respectively located on two sides of the central shaft at the moment, namely the explosion transfer hole and the next-stage explosive charge are staggered, and the ball type restorable MEMS safety system is in a safe state;
2) when ammunition is launched, ammunition starts to generate displacement under the action of huge chamber pressure in the launching tube and rotates at a high speed under the action of rifling in the launching tube, the restorable ball type MEMS safety system senses recoil overload at first, recoil force enables the small ball limiting spring pin and the rotor limiting spring pin to move in the small ball spring pin assembling groove and the rotor spring pin assembling groove respectively and to be limited in the small ball spring pin assembling groove and the rotor spring pin assembling groove respectively by respective limiting buckles, the limitation on rolling small balls is removed, and the ammunition is in a service processing state at the moment;
3) the rolling ball moves along the rolling guide groove under the action of centrifugal force generated by rotation of the ammunition and impacts a driving rod on the MEMS rotor;
4) when ammunition finds a target and attacks the target in a service processing state, the micro control chip powers on the electromagnetic pin puller to enable a pin on the electromagnetic pin puller to be sucked into the electromagnetic pin puller, so that the pin exits from the limiting mechanism, the top end of the pin is lower than the lower surface of the driving rod, the constraint of the electromagnetic pin puller on the driving rod is removed, and the rotation of the MEMS rotor is not limited any more; the rolling small balls push the driving rod to drive the MEMS rotor to start rotating under the action of centrifugal force generated by high-speed rotation of ammunition;
5) after the MEMS rotor rotates, the micro-control chip immediately powers off the electromagnetic pin puller, the micro-control chip controls the time t from power on to power off of the electromagnetic pin puller to be longer than the time required by the rolling ball to push the driving rod to rotate through the pin on the electromagnetic pin puller and shorter than the time required by the rotation of the MEMS rotor by 180 degrees, and the pin on the electromagnetic pin puller stretches out of the electromagnetic pin puller again after the power off;
6) the rolling small balls push the driving rod to drive the MEMS rotor to rotate at a high speed along with the ammunition, when the driving rod rotates to 180 degrees, the limiting mechanism on the front side of the driving rod forms restraint with the electromagnetic pin puller again to limit the rotation of the MEMS rotor, the booster hole is aligned with the next-stage explosive charge, and the ammunition enters an attack state at the moment, so that safe and reliable delay protection of the ammunition is realized;
7) detonating or returning to a service processing state according to actual needs:
a) when the target needs to be attacked, the micro control chip powers on the energy conversion element of the initiating explosive device and generates an electric explosion effect, the micro initiating explosive is initiated, the next-stage explosive is initiated through the booster explosive, and the ammunition explodes;
b) when an attack target needs to be abandoned, the micro-control chip re-energizes the electromagnetic pin puller, the limitation on the MEMS rotor is removed again, the rolling small ball pushes the driving rod to drive the MEMS rotor to start rotating under the action of centrifugal force generated by high-speed rotation of ammunition, the micro-control chip immediately powers off the electromagnetic pin puller after the MEMS rotor rotates, the time t from the energization to the power-off of the micro-control chip controls the electromagnetic pin puller to meet the requirement that the rolling small ball pushes the driving rod to rotate over a pin on the electromagnetic pin puller and is less than the time required by the rotation of the MEMS rotor for 180 degrees, and the pin on the electromagnetic pin puller stretches out of the electromagnetic pin puller again after the power-off; when the rolling small balls push the driving rod to drive the MEMS rotor to rotate at a high speed along with the ammunition and rotate to 180 degrees, the electromagnetic pin puller and the driving rod form restraint again to limit the rotation of the MEMS rotor, the explosion transmission hole is dislocated with the next-stage explosive charge again, the ammunition returns to a service processing state, and the restorable function of the restorable ball type MEMS safety system is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011309331.5A CN112461066B (en) | 2020-11-20 | 2020-11-20 | Recoverable ball type MEMS (micro-electromechanical systems) safety system applied to high-overload and high-rotation environment and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011309331.5A CN112461066B (en) | 2020-11-20 | 2020-11-20 | Recoverable ball type MEMS (micro-electromechanical systems) safety system applied to high-overload and high-rotation environment and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112461066A CN112461066A (en) | 2021-03-09 |
| CN112461066B true CN112461066B (en) | 2021-08-24 |
Family
ID=74836890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011309331.5A Active CN112461066B (en) | 2020-11-20 | 2020-11-20 | Recoverable ball type MEMS (micro-electromechanical systems) safety system applied to high-overload and high-rotation environment and method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112461066B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113739652B (en) * | 2021-09-14 | 2022-04-29 | 北京理工大学 | Force-recoverable U-shaped electromagnetic drive MEMS (micro-electromechanical systems) safety system and method applied to weak environment |
| CN116222328B (en) * | 2022-12-29 | 2024-04-05 | 北京理工大学 | Electromagnetic drive MEMS safety system and method applied to high overload and high rotation environment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR950029750A (en) * | 1994-04-29 | 1995-11-24 | 배순훈 | Electric safety device |
| US7007606B1 (en) * | 2004-07-22 | 2006-03-07 | The United States Of America As Represented By The Secretary Of The Navy | Method for utilizing a MEMS safe arm device for microdetonation |
| US7051656B1 (en) * | 2003-08-14 | 2006-05-30 | Sandia Corporation | Microelectromechanical safing and arming apparatus |
| US9441931B1 (en) * | 2015-09-29 | 2016-09-13 | The United States Of America As Represented By The Secretary Of The Navy | MEMS rotary fuze architecture for out-of-line applications |
| CN107101541A (en) * | 2017-05-25 | 2017-08-29 | 南京理工大学 | A kind of Moving ball rotor fuse delay arming device |
| CN207095419U (en) * | 2017-06-27 | 2018-03-13 | 湖北三江航天红林探控有限公司 | A kind of constraint formula interrupter based on electromagnetism pin removal |
| CN111076627A (en) * | 2020-01-06 | 2020-04-28 | 北京理工大学 | Remote time-delay solution MEMS safety system and method applied to high-overload and high-rotation environment |
-
2020
- 2020-11-20 CN CN202011309331.5A patent/CN112461066B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR950029750A (en) * | 1994-04-29 | 1995-11-24 | 배순훈 | Electric safety device |
| US7051656B1 (en) * | 2003-08-14 | 2006-05-30 | Sandia Corporation | Microelectromechanical safing and arming apparatus |
| US7007606B1 (en) * | 2004-07-22 | 2006-03-07 | The United States Of America As Represented By The Secretary Of The Navy | Method for utilizing a MEMS safe arm device for microdetonation |
| US9441931B1 (en) * | 2015-09-29 | 2016-09-13 | The United States Of America As Represented By The Secretary Of The Navy | MEMS rotary fuze architecture for out-of-line applications |
| CN107101541A (en) * | 2017-05-25 | 2017-08-29 | 南京理工大学 | A kind of Moving ball rotor fuse delay arming device |
| CN207095419U (en) * | 2017-06-27 | 2018-03-13 | 湖北三江航天红林探控有限公司 | A kind of constraint formula interrupter based on electromagnetism pin removal |
| CN111076627A (en) * | 2020-01-06 | 2020-04-28 | 北京理工大学 | Remote time-delay solution MEMS safety system and method applied to high-overload and high-rotation environment |
Non-Patent Citations (1)
| Title |
|---|
| 微机电技术在引信中的应用综述;王辅辅等;《探测与控制学报》;20160630;第38卷(第3期);第22-28页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112461066A (en) | 2021-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112461066B (en) | Recoverable ball type MEMS (micro-electromechanical systems) safety system applied to high-overload and high-rotation environment and method thereof | |
| CN110285725B (en) | Heterogeneous integrated safety system applied to small-caliber bomb and implementation method thereof | |
| CN110132074B (en) | Recoverable electromagnetic MEMS safety system applied to ammunition and implementation method thereof | |
| CN112525022B (en) | Fuse security mechanism with modular design | |
| US7316186B1 (en) | Air-powered electro-mechanical fuze for submunition grenades | |
| CN110657721B (en) | Inner-environment self-adaptive small-caliber missile remote dissociation protection MEMS safety system and method | |
| KR20030009476A (en) | Directional control of missiles | |
| US7083140B1 (en) | Full-bore artillery projectile fin development device and method | |
| CN110823023B (en) | Electromagnetic drive MEMS rotor type safety system applied to weak environment force and method thereof | |
| CN111076627B (en) | Remote time-delay solution MEMS safety system and method applied to high-overload and high-rotation environment | |
| KR101234548B1 (en) | Device for activating thermal battery for artillery ammunition | |
| CN109186344B (en) | Single-aperture universal MEMS safety system and method | |
| US20180051971A1 (en) | Power supply for providing electrical energy to a self-destruct fuze for submunitions contained in a projectile | |
| CN113739652B (en) | Force-recoverable U-shaped electromagnetic drive MEMS (micro-electromechanical systems) safety system and method applied to weak environment | |
| CN109029138B (en) | MEMS safety system integrated device applied to small-caliber bomb and method thereof | |
| CN116222328B (en) | Electromagnetic drive MEMS safety system and method applied to high overload and high rotation environment | |
| US20080072781A1 (en) | System and method for safing and arming a bore-launched projectile | |
| US3724384A (en) | Centrifugally armed fuze | |
| EP2153161A1 (en) | Mechanical self destruct for runaway escapements | |
| CN212133469U (en) | Electromechanical fuse device for transmitting overload identification and relieving insurance | |
| CN112033239B (en) | Fuse MEMS safety and safety relief device | |
| CN218566320U (en) | Laser detonation control system based on MOEMS optical switch device | |
| WO2009002601A2 (en) | Command and arm fuze assembly having small piston actuator | |
| CN110774296A (en) | Device and method for destroying unexploded bomb | |
| CN216668439U (en) | Shape memory alloy MEMS safety system with dual functions of solution protection and driving |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |