Inertia sensor

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to the field of armaments and, in particular, to the starting devices of rocket shells. Sensor contains a housing with an electric line, an electric outlet and a key made in the form of a two-component microelectromechanical system - the MEMS key. Latter contains two electrically independent contact groups that are open in the initial position. These groups are provided with the possibility of triggering under the action of an overload and are designed in such a way, that the closure of contacts of different groups is ensured by the action of forces whose directions of action for different contact groups are mutually perpendicular. Electronic time block provides the possibility of counting the time of the overload, exceeding the threshold level and forming an electric pulse at the output in case of exceeding the duration of the overload action exceeding the threshold level of a certain time value. MEMS key is located in the housing of the inertial sensor in such a way that the closing of contacts of one group is provided under the effect of longitudinal overload, and the closing of the contacts of the other group is ensured by the action of centrifugal forces when the inertial sensor rotates about the longitudinal axis. One of the contacts of the group is provided with the possibility of operation under the action of longitudinal overload. It is connected to the electric motor of the inertial sensor. Another contact is connected to the input of an electronic time block whose output is connected to one of the contacts of the group. It is provided with the possibility of triggering under the action of centrifugal force. It is connected to the electric motor of the inertial sensor.

EFFECT: improvement of the overall mass characteristics of the launching device, increasing the reliability of its operation during combat use, and increasing security in service circulation.

1 cl, 1 dwg

 



 

Same patents:

FIELD: explosives.

SUBSTANCE: safety-and arming fuse mechanism refers to explosion engineering. Safety-and arming fuse mechanism includes body with electric detonator, transversely moved partition located in the guide slot of the body, inertia locking mechanism with centrifugal fixing device of end position of the partition, which is made in the form of two pins located in the partition hole perpendicular to electric detonator axis, and fixing devices of initial position of the partition, one of which is made in the form of stepped cylinder arranged in the body hole and in the appropriate coaxial hole of the partition, and two other are made in the form of spring-loaded axisymmetrical centrifugal fixing devices. On one of the partition surfaces there installed is switching plate, and normally open electric contacts are arranged in the body opposite the slot. On the partition surface there is projection, and at the body slot bottom there is additional through slot, and projection of surface enters the above slot with possibility of being moved along the slot. In partition there is through hole filled with explosive agent and offset relative to electric detonator axis, with possibility of their axes' alignment and contact closure with the switching plate to be connected to power supply after the partition arming. Hole of the partition for stepped cylinder is made in the form of blind cone hole with cone angle chosen within 45-60°, and its contact edge is made in the form of spherical segment.

EFFECT: improving safety when the fuse is used.

3 dwg

FIELD: blasting.

SUBSTANCE: fuse comprises metal body 1, containing the following components - metal arming unit of segment shape, consisting of electric spark igniter 2 and moderator 3 connected by tight cavity, electric filter arranged in insulating vessel of segment shape 4, composite reaction striker consisting of stem 5, striker 6 and pressing nut 7, inertial striker 8 with spring-loaded detonating cap 9 and transmitting detonator 10 spring-loaded with percussion detonator 11, bushing 12 with pyrotechnic compound 13, side bushing 14, detonator 15 and electric cord with contact unit 16.

EFFECT: fuse provides for safety of ship-based aviation under conditions of exposure to electromagnetic fields of high intensity, high reliability of aerial bomb actuation with reduced dimensions of fuse and its safety in case of release without supply of electric pulse from carrier.

4 cl, 2 dwg

Ordnance timer // 2399020

FIELD: weapons and ammunition.

SUBSTANCE: fuse case with ring thread outer diametre D incorporates D1-thick inner web. Fuse assembly units, i.e. detonating cartridge, safety-detonating device and electronic timer, are arranged below said web. The other elements of the fuse are arranged above said web. Diametres D and thickness D1 are related by the following ratio, i.e. D=(2.0…7.0)D1.

EFFECT: higher reliability of projectile burst.

1 dwg

FIELD: weapons and ammunition.

SUBSTANCE: proposed fuse comprises casing, target reactionary pickup, and actuator. Target pickup is made up of two, four or six current conducting pins arranged regularly on case face along D-diametre circumference, and cap with inner current conducting surface of diametre D1. Said pins are isolated from the case. Even pins are connected to control circuit of actuator, while uneven pins are connected to power supply circuit. Said cap is galvanically isolated from actuator circuit. Diametres D and D1 are related by the following ratio, i.e. D=(0.3…0.8)D1.

EFFECT: higher noise immunity and reliability of proposed fuse.

2 dwg

Artillery fuse // 2397436

FIELD: weapons and ammunition.

SUBSTANCE: artillery fuse comprises reaction striker with point, inertial striker with fuse-igniter, primary safety cartridge, primary safety spring, upper limit ball, lower stop balls, membrane and safety cap. Additional safety cartridge with locking lugs and lower limit flange as well as additional safety spring are arranged between primary safety cartridge and inertial striker. Note here that distance hd from lower face of additional safety cartridge to bottom of primary bore in inertial striker are described by relationship hd=(0.15…0.35)h, where h is distance from lower face of additional safety cartridge to bottom of primary bore in inertial striker, while inertial striker has recess to receive additional spring, recess depth making L=(0.1…0.2)Hstr, where Hstr is inertial striker depth. Note also that depth of primary bore in inertial striker is increased by the thickness of limit flange.

EFFECT: higher safety of fuse.

1 dwg

Starting mechanism // 2244249

FIELD: ammunition, applicable for accomplishment of starting of the power supply source or removal of the fuse protection stage of jet projectiles.

SUBSTANCE: the starting mechanism has a hollow cylindrical body, positioned in whose upper part are the bob-weight, the first group of balls, the first cylindrical compression spring, as well as the firing pin, hammer and the percussion primer. The mechanism is featured by the fact that it is provided with the second group of balls, second bob-weight made in the form of a case enveloping with a clearance the upper part of the body, second cylindrical compression spring enveloping the body and installed between the lower base of the body and the case, and the first bob-weight is made in the form of the first cylindrical bush, installed coaxially and with a clearance in the upper cavity of the body, the inner surface of the first bush is made stepped, the larger inside diameter of the first bush is made on the side of its upper face, the larger part of the second group of balls is positioned in a through hole made in the side wall of the body, and the smaller part is positioned in the first circular groove made on the outer surface of the first bush, the balls of the second group are engageable with the inner surface of the lower section of the case, with the second circular groove made in its upper section; a guide rod is fastened coaxially on the lower base of the body, and the hammer is made in the form of the second bush loose-fitted onto the guide rod and installed with a clearance inside the first bush, a flange resting on the step on the inner surface of the first bush is made in the upper section of the second bush, through holes are made in the upper section of the first bush, with the respective ball of their first group of balls engageable with the inner surface of the side wall of the body located with its larger part in each of them, made in the lower part of the side wall are through holes corresponding to the dimensions of the first group of balls, the lower, projecting part of each ball of the first group, from the bottom, is engageable with the flange of the second bush so as to prevent its motion upwards, a guide groove is made in the side wall of the body, a pin fastened in the wall of the first bush is positioned in the guide groove, the first cylindrical compression spring is fitted onto the guide rod between the lower base of the body and the lower face of the second bush, the firing pin and the percussion cap are installed above the hammer in the upper part of the body.

EFFECT: reduced probability of unauthorized actuation.

2 cl, 7 dwg

Artillery fuze // 2210054
The invention relates to the field of military technology and can be used in detonators for ammunition for various purposes

The invention relates to the field of military equipment and specifically to contact fuzing devices for highly maneuverable missiles

Starting mechanism // 2244249

FIELD: ammunition, applicable for accomplishment of starting of the power supply source or removal of the fuse protection stage of jet projectiles.

SUBSTANCE: the starting mechanism has a hollow cylindrical body, positioned in whose upper part are the bob-weight, the first group of balls, the first cylindrical compression spring, as well as the firing pin, hammer and the percussion primer. The mechanism is featured by the fact that it is provided with the second group of balls, second bob-weight made in the form of a case enveloping with a clearance the upper part of the body, second cylindrical compression spring enveloping the body and installed between the lower base of the body and the case, and the first bob-weight is made in the form of the first cylindrical bush, installed coaxially and with a clearance in the upper cavity of the body, the inner surface of the first bush is made stepped, the larger inside diameter of the first bush is made on the side of its upper face, the larger part of the second group of balls is positioned in a through hole made in the side wall of the body, and the smaller part is positioned in the first circular groove made on the outer surface of the first bush, the balls of the second group are engageable with the inner surface of the lower section of the case, with the second circular groove made in its upper section; a guide rod is fastened coaxially on the lower base of the body, and the hammer is made in the form of the second bush loose-fitted onto the guide rod and installed with a clearance inside the first bush, a flange resting on the step on the inner surface of the first bush is made in the upper section of the second bush, through holes are made in the upper section of the first bush, with the respective ball of their first group of balls engageable with the inner surface of the side wall of the body located with its larger part in each of them, made in the lower part of the side wall are through holes corresponding to the dimensions of the first group of balls, the lower, projecting part of each ball of the first group, from the bottom, is engageable with the flange of the second bush so as to prevent its motion upwards, a guide groove is made in the side wall of the body, a pin fastened in the wall of the first bush is positioned in the guide groove, the first cylindrical compression spring is fitted onto the guide rod between the lower base of the body and the lower face of the second bush, the firing pin and the percussion cap are installed above the hammer in the upper part of the body.

EFFECT: reduced probability of unauthorized actuation.

2 cl, 7 dwg

Artillery fuse // 2397436

FIELD: weapons and ammunition.

SUBSTANCE: artillery fuse comprises reaction striker with point, inertial striker with fuse-igniter, primary safety cartridge, primary safety spring, upper limit ball, lower stop balls, membrane and safety cap. Additional safety cartridge with locking lugs and lower limit flange as well as additional safety spring are arranged between primary safety cartridge and inertial striker. Note here that distance hd from lower face of additional safety cartridge to bottom of primary bore in inertial striker are described by relationship hd=(0.15…0.35)h, where h is distance from lower face of additional safety cartridge to bottom of primary bore in inertial striker, while inertial striker has recess to receive additional spring, recess depth making L=(0.1…0.2)Hstr, where Hstr is inertial striker depth. Note also that depth of primary bore in inertial striker is increased by the thickness of limit flange.

EFFECT: higher safety of fuse.

1 dwg

FIELD: weapons and ammunition.

SUBSTANCE: proposed fuse comprises casing, target reactionary pickup, and actuator. Target pickup is made up of two, four or six current conducting pins arranged regularly on case face along D-diametre circumference, and cap with inner current conducting surface of diametre D1. Said pins are isolated from the case. Even pins are connected to control circuit of actuator, while uneven pins are connected to power supply circuit. Said cap is galvanically isolated from actuator circuit. Diametres D and D1 are related by the following ratio, i.e. D=(0.3…0.8)D1.

EFFECT: higher noise immunity and reliability of proposed fuse.

2 dwg

Ordnance timer // 2399020

FIELD: weapons and ammunition.

SUBSTANCE: fuse case with ring thread outer diametre D incorporates D1-thick inner web. Fuse assembly units, i.e. detonating cartridge, safety-detonating device and electronic timer, are arranged below said web. The other elements of the fuse are arranged above said web. Diametres D and thickness D1 are related by the following ratio, i.e. D=(2.0…7.0)D1.

EFFECT: higher reliability of projectile burst.

1 dwg

FIELD: blasting.

SUBSTANCE: fuse comprises metal body 1, containing the following components - metal arming unit of segment shape, consisting of electric spark igniter 2 and moderator 3 connected by tight cavity, electric filter arranged in insulating vessel of segment shape 4, composite reaction striker consisting of stem 5, striker 6 and pressing nut 7, inertial striker 8 with spring-loaded detonating cap 9 and transmitting detonator 10 spring-loaded with percussion detonator 11, bushing 12 with pyrotechnic compound 13, side bushing 14, detonator 15 and electric cord with contact unit 16.

EFFECT: fuse provides for safety of ship-based aviation under conditions of exposure to electromagnetic fields of high intensity, high reliability of aerial bomb actuation with reduced dimensions of fuse and its safety in case of release without supply of electric pulse from carrier.

4 cl, 2 dwg

FIELD: explosives.

SUBSTANCE: safety-and arming fuse mechanism refers to explosion engineering. Safety-and arming fuse mechanism includes body with electric detonator, transversely moved partition located in the guide slot of the body, inertia locking mechanism with centrifugal fixing device of end position of the partition, which is made in the form of two pins located in the partition hole perpendicular to electric detonator axis, and fixing devices of initial position of the partition, one of which is made in the form of stepped cylinder arranged in the body hole and in the appropriate coaxial hole of the partition, and two other are made in the form of spring-loaded axisymmetrical centrifugal fixing devices. On one of the partition surfaces there installed is switching plate, and normally open electric contacts are arranged in the body opposite the slot. On the partition surface there is projection, and at the body slot bottom there is additional through slot, and projection of surface enters the above slot with possibility of being moved along the slot. In partition there is through hole filled with explosive agent and offset relative to electric detonator axis, with possibility of their axes' alignment and contact closure with the switching plate to be connected to power supply after the partition arming. Hole of the partition for stepped cylinder is made in the form of blind cone hole with cone angle chosen within 45-60°, and its contact edge is made in the form of spherical segment.

EFFECT: improving safety when the fuse is used.

3 dwg

Aircraft fuse // 2592934

FIELD: weapons and ammunition; blasting.

SUBSTANCE: invention relates to aircraft fuses. Fuse includes a housing, an arming unit with an electric igniter and retarder. Latter are integrated by common sealed cavity. Also includes an electric filter, composite reaction striker made in form of a rod, a striker and pressure nut. Furthermore, it comprises an inertial striker with spring-loaded ignition cap and transfer detonator, a spring-loaded firing device, sleeve with pyrotechnic composition, side sleeve, detonator and electric rope with contact unit. Fuse is equipped with an arming indicator and mechanical safety device. Arming indicator is made in form of mounted in sleeve housing with membrane tightly fitted therein and installed with possibility of movement along axis of sleeve stepped rod. One end of rod is made for contact with membrane, wherein its diameter is 0.5÷0.9 diameter of membrane. Second end of rod is arranged in hole made in housing. Mechanical safety device is made in form of mounted in housing a guide bushing installed in sleeve with possibility of longitudinal movement over inertial striker and fork and a sealing gasket. Width of neck of fork of fork-like part exceeds diameter of spring firing device. Furthermore, it comprises pivotally connected with fork a cylindrical part with an annular groove, and a cap. In bottom of cap there is an eight-shaped hole for accommodating bottom of cap in annular groove of cylindrical part of safety device.

EFFECT: higher safety of fuse by preventing random operation of fuse.

1 cl, 4 dwg

Safety actuator // 2633838

FIELD: weapons and ammunition.

SUBSTANCE: device contains the body with terminals, inside of which there is the explosive charge, the electric detonator with electrical terminals, the key made in the form of microelectromechanical system (hereinafter - MEMS key), opened in the initial position, triggered by overload, exceeding the threshold level, the electronic time block, that provides the countdown of the overload time, exceeding the threshold level and forming the electric impulse at the output, in case of exceeding the duration of the overload action of the certain time value. One of the MEMS key terminals is connected to the safety-actuator terminals, and the other terminal is connected to the electronic time block input, the output of which is connected to the electric detonator electric terminal. In the embodiment, the safety actuator further comprises the MEMS key, opened in the initial position, triggered by the overload, located in the electrical circuit, connecting the electronic time block output to the electric detonator electric terminal, wherein the additional MEMS key is disposed in such a way, that the contacts closure is carried out under the action of centrifugal force, when the safety actuator is rotated around the longitudinal axis.

EFFECT: small weight-size characteristics, increased reliability indices at combat use and safety at service handling.

5 cl, 1 dwg

Acceleration switch // 2636830

FIELD: weapons and ammunition.

SUBSTANCE: acceleration switch contains sensitive element - MEMS-key, made in the form of a microelectromechanical system, opened in its original position and fired by the action of overload exceeding the threshold level, an electronic time unit that provides a countdown to axis overload action exceeding the threshold level, and generates on the output of acceleration switch a trigger signal in case if the duration of the axis overload action exceeding threshold level exceeds a certain value. Wherein, MEMS key with one of the terminals is connected to the power point of acceleration switch, and with the other terminal is connected to the electronic time unit input, the output of which is connected to the electric output of acceleration switch.

EFFECT: invention will allow to reduce the mass-size characteristics of acceleration switch, increase the level of reliability during combat use and ensure a high level of security in service usage.

2 cl, 1 dwg

FIELD: blasting operations.

SUBSTANCE: invention relates to explosive engineering and can be used in fuses of projectiles. Safety-actuating mechanism comprises a housing with current leads, inside which is placed electric detonator with electrical leads, three or more MEMS keys, made in the form of microelectromechanical systems, opened in the initial position and triggered by overload, electronic time block that provides a countdown of the overload time exceeding the threshold level and forms electrical signal at the output in the event that the recorded time exceeds a certain value. One of the MEMS keys is located in such a way that the contacts are closed when the projectile contacts the obstacle under the influence of overload, exceeding the threshold level acting along the longitudinal axis of the safety-actuator. Other two or more MEMS switches are arranged in such a way, that the closing of the contacts is effected by the action of a centrifugal force when the safety-actuator rotates about the longitudinal axis, wherein the MEMS switches are disposed relatively to the longitudinal axis, preferably diametrically opposed. MEMS-key, triggered by longitudinal overload, one of the contacts is connected to one of the safety-actuator's current leads, and the other one is connected to the input of the electronic time block, output of which is connected to one of the electrodes of the electric detonator. MEMS keys, triggered by centrifugal force, are connected in series to the electrical circuit, one end of which is connected to the second actuator of the safety-actuator, and the other end is connected to the second electric outlet of the electric detonator.

EFFECT: invention allows to create a device characterized by improved overall mass characteristics, increased reliability indicators for combat use and increased safety in service circulation.

1 cl, 1 dwg

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