RU2700746C2 - Guided blast fastener for artillery ammunition - Google Patents

Abstract

FIELD: weapons.

SUBSTANCE: invention relates to controlled artillery projectiles with combined, contact and non-contact fuse operation for remote initiation of explosion from radiation of external source. Controlled detonating fuse for artillery ammunition is made in form of radio-frequency fuse containing millimeter range radio transmitter connected to encoder, a millimeter wavelength range detector connected through a comparator with a remote control unit, an electric igniter, and an energy-containing power supply. Remote control unit includes a decoder, a delay device, voltage stabilizers and a switch, millimeter range detector is made in the form of waveguide detector of millimeter wavelength range and is an antenna in form of a section of waveguide channel in the form of a cylindrical cavity in which a sapphire dielectric is inserted, connected to a detector microwave diode located inside the second waveguide perpendicular to the axis of the waveguide, and also filled with dielectric. Microwave diode is placed on a dielectric substrate inserted into a quarter-wave section of a third waveguide - short-circuiter. Output of detector microwave diode is connected to amplifier first input through comparator. Output of the comparator is connected to the first input of the decoder of the remote control unit. Energy-containing power supply is connected through switchboard and first stabilizer to amplifier of waveguide detector of millimeter range of wavelengths and second input of comparator, and through second stabilizer - to second input of decoder and to second input of delay device, output of which is connected to input of electric igniter.

EFFECT: invention enables to eliminate combustion products on the path of artillery ammunition with remote initiation of blasting for use in small-caliber projectiles while improving efficiency of combat action and functional reliability, as well as safety of use.

1 cl, 3 dwg

Description

The invention relates to guided artillery shells with a contactless fuse for remote initiation of an explosion from exposure to radiation from an external source.

The prior art in this area is characterized by an artillery shell with a remote fuse, including a radio signal receiver, a decoder (decoder) and a temporary deceleration device associated with an autonomous power source, and an electric detonator of a safety-actuating device for filling an explosive projectile, described in US patent No. US 4083308, F42C 11 / 06, publ. 1978.

The fuse is fired after a predetermined time after the shot as a result of processing the control information signals received by the receiver to set the boundary of their count, at the time of which a signal is sent to the electric detonator to undermine the filling of the projectile at the required flight distance.

Processing the received signals in a time delay (deceleration) device includes the steps of transmitting the first information signal to start the oscillation generator, transmitting the second information signal after a predetermined time interval to stop the generator, and the counter provides the output of the number of oscillations issued in the said unit time period, and transmitting the third an information signal representing the number of unit time intervals before the end of the delay interval and leading to the multiplication of this number by lo oscillations counted into said unit time interval. The value of this product is used as the counter boundary of the counter.

Next, the counter is set to the initial state with the erasure of the previously calculated number of oscillations, the oscillator is restarted and the counter counts the number of oscillations to the specified count boundary, upon reaching which a projectile detonation signal is generated.

Known fuses for artillery ammunition with combined initiation (see, for example, RF patent No. RU 2135947 dated 05/18/1998 IPC F45B 15/01, F42C 13/04, etc.) containing a housing, an autonomous shock pulse generator, filling, fuse with a contact converter and a remote control unit connected to a power source, including a time code receiving device and a deceleration device connected in series.

The closest known technical solution is a controlled fuse according to the patent of the Russian Federation No. RU 2483274 from 11.01.2012. IPC F42C 9/00, F42C 11/00. The fuse is installed in the bottom of the munition housing, and contains a remote control unit, an electric igniter, an energy-containing power source. The remote control unit consists of a time code receiver (including a receiver and a decoder), a delay device, voltage stabilizers and a switch, while the output of the remote control unit is connected to an electric igniter,

The delay device structurally includes sequentially triggering pulse counter, a comparison circuit, a long-range cocking controlled by a clock counter, and an output key, while the trigger pulse counter and clock counter are connected to the corresponding outputs of the clock connected to the decoder, the outputs of which are connected to a trigger pulse counter and a switch in the power line of the receiver of control encoded signals, as well as with a comparison circuit and with a control unit trolled delay established between the contact sensor and the driving circuit cocking.

Processing of the received signals is carried out in accordance with the regular algorithm described in the prototype.

The technical implementation of artillery shells according to the invention for combat use in high-speed shooting under external interference is not practically possible due to the peculiarities of the propagation of laser radiation through the combustion products of the propellant charge at the muzzle, as well as dust and other, optically opaque formations formed at high-speed shooting at the surface of the earth.

The problem to which the present invention is directed, is to improve the receiving device of the munition fuse and, accordingly, to eliminate combustion products in the way of performing artillery ammunition with remote initiation of detonation for use in small-caliber shells while increasing the effectiveness of combat action and functional reliability, as well as safety of use .

The required technical result is achieved in that the guided fuse for artillery ammunition is in the form of a radio frequency fuse containing a millimeter-wave radio transmitter connected to an encoder, a millimeter wavelength detector connected through a comparator to a remote control unit, an electric igniter, and an energy-containing power source at the same time, the remote control unit includes a decoder, a delay device, voltage stabilizers and a switch p, the millimeter wavelength detector is made in the form of a waveguide millimeter wavelength detector and is an antenna in the form of a section of a waveguide path in the form of a cylindrical cavity, in which a sapphire dielectric is inserted, connected to a microwave detector diode located inside the second waveguide perpendicular to the axis the waveguide, and also filled with a dielectric, while the microwave diode is placed on a dielectric substrate inserted into the quarter-wave segment of the third waveguide - short circuit , the output of the microwave detector diode through the amplifier is output to the first input of the comparator, the output of the comparator is connected to the first input of the decoder of the remote control unit, the energy-containing power source is connected through the switch and the first stabilizer to the amplifier of the waveguide detector of the millimeter wavelength range and the second input of the comparator, and through the second a stabilizer to the second input of the decoder and to the second input of the delay device, the output of which is connected to the input of the electric igniter,

At the same time, an annular groove can be made around the front of the housing, which is a means of reducing the side lobes of the antenna radiation pattern.

This technical solution will provide the ability to transfer commands (code parcels) on board the artillery ammunition, and will eliminate the influence of the products of the shot and opaque formations that form during high-speed firing at the surface of the earth on the reliable installation of the fuse, which will allow you to set the distance of the blast in the formation of gas - smoke interference and increase the effectiveness of the main battle.

The invention is illustrated in the drawing, which presents:

- in FIG. 1 - guided ammunition, (in which the bottom part has a waveguide detector of the millimeter wavelength range connected to the remote control unit);

- in FIG. 2, the implementation of the receiving waveguide radiation detector of the millimeter wavelength range;

In FIG. 3 is a structural diagram of a guided fuse.

In the drawing are indicated:

1 - housing

2 - waveguide radiation detector of the millimeter wavelength range,

3 - remote control unit,

4 - antenna

5 - waveguide with dielectric filling,

6 - detector microwave diode,

7 - short-circuited segment with dielectric filling,

8 - amplifier

9 - a receiving device containing a waveguide radiation detector of the millimeter wavelength range 2, and a comparator 10,

11 - decoder,

12 is a delay device

13 - electric igniter

14 is an energy source,

15 - stabilizer

16 - stabilizer

17 - switch

18 - radio transmitter

19 - encoder.

In the housing 1 of the artillery shell, in its bottom part there is a waveguide detector 2 and a remote initiation control unit 3,

The waveguide radiation detector 2 of the millimeter wavelength range, (Fig. 2) sequentially contains an antenna 4 - a millimeter wave radiation detector in the form of a cylindrical cavity into which a sapphire dielectric is inserted, a section of waveguide 5 is filled with a dielectric, and a microwave diode is located at its output 6, which is mounted on a dielectric substrate in a short-circuited segment of the waveguide 7 and is connected in series with the amplifier 8.

To protect the receiving device from the action of high-temperature powder gases and mechanical overloads, the antenna is made of sapphire, and the waveguide is filled with a dielectric that fixes the microwave diode.

The waveguide detector 2 is a part of the receiving device 9. From the output of the waveguide detector 2, the signal is supplied to the comparator 10 and the decoder 11 connected to it in series. In turn, the decoder is connected to the input of the delay device 12. The delay device 12 is connected in series with the electric igniter 13.

An energy-containing power source 14 is connected through a voltage stabilizer 15 to a receiver 9, through a stabilizer 16 to a delay device 12 and to a decoder 11. Moreover, communication with the receiver is via a switch 17, which is controlled by a decoder 11.

When fired from ignition of a propellant charge by the action of high-temperature powder gases or mechanically from overloads of acceleration of a projectile, an electric current source 14 is supplied, which feeds the structural elements of the fuse initiating remote control unit 3: receiver 9, decoder 11 and delay device 12.

After the time delay necessary for the guaranteed output of the energy-containing source 14 to the required level, sufficient for the structural elements of the fuse to work, an external millimeter-wave radio transmitter 18 connected to the gun emits a code pair in the form of two pairs in the direction of the projectile using encoder 19 (as in the prototype ) pulses.

The high-frequency signal of the transmitter is received by antenna 4 and, propagating in the waveguide with dielectric filling 5, is fed to the detector microwave diode 6, which is located in the short-circuited segment with dielectric filling 7. The detected signal is amplified in amplifier 8 and converted into digital form by comparator 10. Thus adopted the signal goes to the decoder 11.

The signal from the decoder 11 about the completion of the reception of the code packet is sent to:

- a switch 17 that turns off the power of the receiving device 9;

- a delay device 12, where a number characterizing a time-setting interval is also transmitted from the decoder 11.

After that, the delay device starts counting the triggering pulses with a frequency of a lower clock frequency, and circuit 14 compares the current values of the number with the number transmitted to the delay device 12 from the decoder 11.

Thus, the use of a millimeter-waveguide detector requires a radio transmitter, in which, due to the millimeter-wave coded radio line, an increase in fuse installation reliability is ensured with minimal changes to the product design and the use of existing technical solutions, which is important for high serial production.

The use of the radio range allows us to ensure all-weather and all-dayness and independence from the availability of shot products and dust of smoke formations.

Claims (1)

A controlled fuse for artillery ammunition containing a remote control unit, an electric igniter and an energy-containing power source, a remote control unit is installed in the bottom of the ammunition housing and contains a decoder, a delay device, voltage stabilizers and a switch, the output of the remote control unit is connected to an electric igniter, and the decoder output is connected to the first input of the delay device and connected to the first input of the switch, characterized in that in the control The fuse was introduced with an encoder, a millimeter-wave radio transmitter, and a radio-frequency detector made in the form of a millimeter-waveguide waveguide detector connected to a comparator, while the millimeter-waveguide detector is an antenna in the form of a section of a waveguide path in the form of a cylindrical cavity, which is inserted a sapphire dielectric connected to a microwave detector diode located inside the second waveguide perpendicular to its axis and also filled a dielectric, the microwave diode is placed on a dielectric substrate inserted into the quarter-wave segment of the third waveguide - short circuit, the output of the microwave detector diode through the amplifier is output to the first input of the comparator, the output of the comparator is connected to the first input of the decoder of the remote control unit, the energy-containing power source is connected through the switch and the first stabilizer to the amplifier of the waveguide detector of the millimeter wavelength range and the second input of the comparator, and through the second stabilizer to oromu decoder input and a second input of the delay unit.

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