RU2216709C2 - Radio fuse accord-2k for salvo delayed action blasting of ammunition with optical-electron device acknowledging presence of target - Google Patents

Abstract

FIELD: initiation blasting facilities, contact-free radio controlled initiation devices. SUBSTANCE: radio fuse Accord-2K can be utilized to complement rocket missile ( rockets ) of salvo fire, in guided rockets of antiaircraft rocket complexes, in guided rocket air-to-air missiles of air and rocket defense, in Air Force aviation and other type of ammunition. Radio fuse for salvo delayed action blasting of ammunition with optical-electron device acknowledging presence of selected target in space comprises following units and structural elements placed on duralumin framework of typical form: Doppler transceiver with transceiving antenna, mixer, amplifier of signal TARGET, former of electric signal BLASTING, receiving optical system with narrow-band interference light filter, photodetector, amplifiersignal former of optical receiver, AND gate, delay circuit of signal BLASTING with time delay switch, encoder of signal BLASTING, transmitter of radio command BLASTING with transmitting antenna which radiation pattern faces rear hemisphere of missile ( rocket ), receiver of radio command BLASTING with receiving antenna, decoder of signal BLASTING, OR gate, power amplifier of signal BLASTING, thyristor key, filaments of electric detonator, inertial safety electric contacts, power supply sources ( turbo- generator and ampoule storage battery ), self-destructor, safety-actuation mechanism. Salient feature of fuse is that it blasts not only warhead of missile in which it is installed but ensures emission of radio command BLASTING into space by which groups ( groups in series ) of missiles ( rockets ) are blasted, that is, salvo blasting of ammunition near target is ensured. Radio fuse Accord-2K displays infrared target selectivity, has switch taking into account closing speed of missile ( rocket ) with target and is fitted with self-destructor that secures self-destruction of missile after 0.6-1.0 ms after reception of radio command BLASTING which makes it possible to hit target even in case of failure of standard activation of radio fuse due to any cause. EFFECT: raised functional reliability of radio fuse. 2 cl, 3 dwg _

Description

 The invention relates to explosive devices of a non-contact type, namely to radio-controlled initiating devices.

 This fuse is designed for use in rocket unguided shells of artillery multiple launch rocket systems, in guided missiles of anti-aircraft missile systems, in rockets and air-to-air missiles of the air defense system and air force aviation, can be used to detonate ammunition of volumetric explosion, other ammunition used in various branches of the armed forces and the Navy, and the principle of detonation can be applied to wirelessly control the detonation of charges during stripping operations in the mining industry, with roitelstve canals, railways and highways, or in the production of rescue and preventive works MOE services during natural disasters (floods, earthquakes, to force avalanches, for forest fires in large areas of fire, etc.).

Analogs of this type of fuse are:
1. "Active Doppler radar fuse RV-2U" Russia. (Description of the product PC-2 US, 1960, which was in service with the MIG-19PM and SU-9 fighters).

 2. "Radio fuse for controlling shells." USA, by class 102 - 70.2, patent 3269314, August 1966.

 3. "Non-contact radar fuse." USA, by class 102 - 70.2, patent 3877377 from 04/05/15.

 4. "Radio fuse for missiles." England, cl. F - 3A (F 42 C, 13/04), patent 1535795 Jan. 1979 year.

5. "Device for ground control the operation of proximity fuses." USA. according to NKI 102 - 702,2r, patent 4030420 dated 06/21/77
The indicated analogues are fundamentally, functionally and constructively identical in many respects, are designed for the same purpose and differ only in size and elemental base, i.e. they are designed to undermine the projectile (rocket) in which they are installed. The range of their application is limited and therefore it is impossible to use them to solve other critical combat missions. For example, to destroy low-flying and anti-ship missiles with the necessary degree of probability of their destruction.

 The probability of hitting air targets with ammunition equipped with such fuses does not exceed 0.7.

 In addition, their combat work is due to the consistency of the radiation pattern of the Doppler radar transceiver antenna with the spread angle of the fragments of the warhead of the projectile. In terms of goals with known characteristics (TTD) and to solve the problems for which they were designed, such fuses worked flawlessly.

 Closest to the invention is a radio fuse according to US patent 3745573, class. F 42 C 13/04, 07/10/1973, comprising an onboard radar transceiver with a transmitting and receiving antenna, a mixer, a Doppler frequency signal amplifier, and an "Undermine" electric signal conditioner.

 A disadvantage of the known radio fuse is its lack of effectiveness, since it lacks elements designed to confirm target detection.

 The present invention is a non-contact type fuse of delayed action of volley explosive ordnance for rockets of artillery systems of multiple launch rockets, missiles, including anti-aircraft guided missiles, as well as for aircraft and helicopter rockets and air-to-air missiles, but can also be used in other ammunition, as well as for volley blasting of charges during construction or emergency rescue and preventive work to eliminate the consequences of natural disasters.

 The claimed invention is aimed at solving a technical problem, which is to increase the reliability of the implementation of volley explosive ordnance on the trajectory near the target, at a calculated distance from it, serves to protect the radio fuse from being triggered in the presence of radio interference and, therefore, to increase the likelihood of destruction (destruction) of airborne - hazardous, ground and surface targets, provides fuse selectivity for infrared radiation of the target.

The solution to the technical problem is achieved:
1. The creation of a delayed-action radio fuse of volley explosive ordnance, the design of which contains an optical infrared receiving device, which is used to detect and confirm (for an electronic fuse circuit) the presence of a selected target in the fired space that needs to be destroyed.

 2. Creation of an electronic circuit of a radio fuse based on a modern elemental and technological base, taking into account the noise immunity from radio and light interference.

 3. The presence of a device for safe cocking of the fuse on the path (for example, inertial electrical contacts).

 4. Equipping the fuse with transmitting and receiving antennas with a circular radiation pattern.

 5. The use of a multiple launch rocket fuse in conjunction with the warhead of an omnidirectional (omnidirectional) action.

 6. Implementation of volley blasting of rockets (missiles) near the target by a radio command emitted by the radio fuse of a projectile that has approached the target at the estimated operating distance, taking into account the estimated time delay for issuing the command "Blasting".

 The achievement of a technical result, namely, an increase in reliability, is achieved due to the fact that the radio fuse of volley explosive detonation of delayed munitions, containing an onboard radar transceiver with a transmitting and receiving antenna, a mixer, a Doppler frequency signal amplifier, an electric signal shaper "Undermining" is equipped with an optical infrared receiving device serving to detect and confirm the presence of a selected target, connected in series with an AND circuit, a delay circuit, an OR circuit power amplifier, encoder and decoder of the signal "Undermine", the transmitter of the radio command "Undermine" with a transmitting antenna, the receiver of the radio command "Undermine" with a receiving antenna, thyristor key, electric detonator, inertial electrical contacts, electrical energy source, self-destruction device, safety-actuating mechanism, moreover, the optical infrared receiving device consists of a receiving optical system with a narrow-band interference filter of the photodetector, the output of which is connected nen with the amplifier-driver of the input electric signal of the optical target sensor, the output of the optical infrared receiving device is connected to the second input of the circuit And, the first input of which is connected to the electric signal driver "Undermine", the second output of the delay circuit is connected to the input of the encoder of the signal "Undermine", output which is connected to the transmitter of the "Demolition" radio command, the output of the "Demolition" radio command receiver is connected to the input of the "Demolition" signal decoder, the output of which is connected to the second input of the OR circuit, the output is the power starter is connected to the thyristor control electrode, the cathode of which is connected to the filament of the electric detonator, and the thyristor anode is connected via the inertial safety contact to the plus bus of the power supply, the second end of the filament is connected to the negative bus of the power source.

 The technical result is also achieved due to the fact that the radio fuse is equipped with a delay time switch delay circuit to take into account the speed of approach with the goal.

 The technical result is also achieved due to the fact that in the radio fuse the self-destruction device is made with the possibility of operation after 0.6-1.0 ms after receiving the radio command "Undermine".

 Note.

 If, under all technical conditions, the warhead did not undermine, then 0.6-1 ms after the projectile reaches the estimated distance, the device for self-destruction of the fuse and warhead detonated by the fuse is triggered. At the same time, the striking elements and explosion factors also hit the target during the self-destruction of the projectile, and do not undermine in the final section of the trajectory after the flight of the target, as is provided for with the ammunition available in the armament.

 Note: all the indicated time intervals are theoretical, close to the actual shooting conditions, but not experimental according to the test results.

 This system of initiating means provides for the use of elemental and technological base in its creation, corresponding to the current level of development of the necessary technical means and modern materials.

The presence of the optical part in the volley blast fuse, which serves to detect and confirm the presence in the field of view of the fuse of the target chosen for attack:
1 - provides a choice from the set of possible targets located in space, exactly the target for which the shooting is being conducted, i.e. goals of a certain type, for which the fuse is designed, i.e. a given fuse selectivity for infrared radiation of the target is ensured;
2 - excludes the operation of the fuse for radio interference;
3 - provides ammunition saving for reliable target destruction in each individual shooting.

 The fuse of the proposed design, if necessary, can have two circuit breakers in the input devices: one of them is in the output circuit of the radar receiving and transmitting device (target sensor), and the other in the optical IRF - receiving device (target sensor). When one of the interrupters is turned off, the fuse becomes monofunctional, and when the interrupters are turned on, it acquires the properties of a universal fuse of volley explosive ordnance.

 Unlike the prototype, the Accord-2K radio fuse has reliable protection against radio interference, has selectivity for infrared radiation, and has a Tzad. taking into account the speed of approach of the projectile (rocket) for the purpose, it is equipped with a self-liquidation device that provides self-liquidation of the projectile after 0.6-1 ms after receiving the "Explosion" radio command, which allows you to hit the target even if, for example, a malfunction did not occur the normal operation of the radio fuse at the time of rapprochement with the target.

 The proposed radio fuse of volley blasting of ammunition with an optical-electronic device for confirming the presence of the target "Accord-24" is schematically presented in figure 1, 2. 3.

 Figure 1 presents a General view of the fuse "Accord-2K."

Figure 2 presents the functional diagram of the radio fuse of multiple launch rocket "Accord-2K", which contains:
1 - radar transceiver with transmit-receive antenna WA1;
2 - mixer;
3 - amplifier working signal "Target";
4 - driver of the electrical signal "Undermining";
5 - receiving optical system with a narrow-band interference light filter;
6 - photodetector;
7 - amplifier - driver of an electric signal confirming the presence of a target - a source of infrared radiation;
8 - circuit I (has two inputs: input 1 and input 2) code formula 1 + 1 = 1;
9 is a diagram of the delay of the electrical signal "Undermining";
10 - encoder of the radio command "Undermine";
11 - transmitter radio command "Undermine" with the antenna WA2;
12 - receiver of the radio command "Undermine" with the antenna WA3;
13 - decoder of the radio command "Undermine";
14 is an OR diagram;
15 - power amplifier Executive electric signal "Undermine";
16 - thyristor key;
17 - filament of the detonator capsule;
18 - inertial safety electrical contacts (close when reaching longitudinal acceleration of 6 g).

 The device of the radio fuse of volley explosive ordnance "Accord-2K" works as follows.

 When a projectile (missile) flies to a target, a Doppler radar transceiver with WA1 antenna works in the same way as in the Accord-1K fuse circuit (prototype). In the process of approaching the projectile with the target, when reaching a distance from the target, on which the optical infrared device begins to receive infrared radiation from the target, that is, it detects and confirms the presence in the field of view of the fuse of the target (aircraft, helicopter, or ground targets - a tank, a convoy or surface ship), or other targets emitting ICL, amplifiers 3 and 6 give electrical signals to the shapers 4 and 7.

 Shapers 4 and 7 generate electrical signals "Blasting", which through the circuit And 8 are supplied to the delay circuit 9 in the form of an electrical signal "Blasting", from the output of the delay circuit 9, the electric signal is fed to the input of encoder 10, and from the output of the encoder to the input of the transmitter 11, through the transmitting antenna WA2 of which the radio command "Blasting" is emitted into the space around the projectile and into the rear hemisphere for receiving this command by receivers 12 through the receiving antennas WA3 of all rockets (missiles), a group (groups) of shells (missiles) and their subsequent salvos of undermining the target.

 The “Demolition” radio command received by the receivers of the 12th group (p) of shells is decoded by decoders 13 and fed to input 1 of the OR circuit 14, from the output of the OR circuit 14 the “Blast” command is sent to power amplifiers 15, from the output of which it is fed to the control electrodes of the thermistor keys 16 and through closed inertial electrical contacts 18, an electric current is supplied to the incandescent threads of the detonator capsules of group 17 (p) of detonators 17 of rockets (missiles) located near the target (around it).

 Detonators 17 undermine the warheads of a group (p) of rockets (missiles) almost simultaneously, which ensures volley blasting of ammunition at the target.

 The time required for the operation of the electronic circuit and the detonator of the fuse does not exceed 1 millisecond and therefore, due to its smallness, it can be neglected, because a time of 1 ms at a speed of approach with a target of 2000 m / s corresponds to 2 m, and at a speed of approach with a target of 1000 m / s, only 1 meter of distance.

 In FIG. Figure 3 shows the interaction diagram of the Accord-2K radio fuse of a projectile that detected a target with the same radio fuses in the group (groin) of shells approaching the target.

Claims (3)

 1. Radio fuse of volley blasting of time-delayed munitions, comprising an airborne radar transceiver with a transceiver antenna, a mixer, a Doppler signal amplifier, an electric signal shaper "Blast", characterized in that it is equipped with an optical infrared receiving device, which serves to detect and confirm the presence of the selected target connected in series with the AND circuit, the delay circuit, the OR circuit and the power amplifier, the encoder and decoder of the signal "Blasting", transmitted with the probe of the “Undermine” radio command with a transmitting antenna, the “Undermine” radio command receiver with a receiving antenna, thyristor key, electric detonator, inertial electrical contacts, an electric energy source, a self-liquidating device, a safety-executive mechanism, the optical infrared receiving device consisting of a receiving optical system with narrow-band interference light filter of the photodetector, the output of which is connected to the amplifier-driver of the input electrical signal opt of the target sensor, the output of the optical infrared receiving device is connected to the second input of the And circuit, the first input of which is connected to the “Demolition” electric signal conditioner, the second output of the delay circuit is connected to the input of the “Demolition” signal encoder, the output of which is connected to the transmitter of the “Demolition” radio command , the output of the receiver of the radio command "Undermine" is connected to the input of the decoder of the signal "Undermine", the output of which is connected to the second input of the OR circuit, the output of the power amplifier is connected to the control electrode of the thyristor, the cathode to it is connected to the incandescent filament of the electric detonator, and the thyristor anode through the inertial safety contact is connected to the plus bus of the power supply, the second end of the filament is connected to the minus bus of the power source.  2. The radio fuse according to claim 1, characterized in that it is equipped with a delay time switch of the delay circuit to take into account the speed of approach with the target.  3. The radio fuse according to claim 1, characterized in that the self-liquidation device is operable to trigger after 0.6-1.0 ms after receiving the radio detonator.

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