KR101367594B1 - Apparatus for resisting recoil of mortar with multi-barrel - Google Patents

Abstract

The present invention relates to a resisting recoil system for a mortar with multiple barrels. The purpose of the present invention is to provide a shell outburst which uses high pressure gas generated from another breech, and a resisting recoil system for a mortar with multiple barrels, which can minimize firing impacts generated from the shell outburst. The resisting recoil system for a mortar with multiple barrels comprises: breeches which are penetrated and combined with barrels; a body unit (660) which is formed of a main piston chamber wherein a sub-piston chamber is included, and is combined with the bottom of each breech; a piston bundle (600) where a main piston is positioned between both rods having an outburst device (70), an air valve, and an air exhaust pipe, and where a breech piston and a sub-piston are combined and integrated into each end of the both rods in a concentric circular shape and are inserted into the breech and the body unit; an outburst pneumatic circuit which initiates firing with a shell burst using outside air pressure; a firing pin piston (730) which is inserted into a firing pin piston chamber in order to outburst a shell; a 3-port valve which realizes outburst functions of the resisting recoil system; oil which is stored inside the main piston chamber; and an air layer (695) which is formed between the oil and the main piston. Therefore, the resisting recoil system for a mortar with multiple barrels can minimize firing impacts generated when continuously firing multiple shells inserted into each of the breeches, and can mount a mortar with multiple barrels on a vehicle without increasing the caliber of the mortar, enhancing firing safety of the mortar with multiple barrels, and improving the structural strength of the existing mounting vehicle.

Description

Darexin Mortar Retreat {Apparatus for resisting recoil of mortar with multi-barrel}

The present invention relates to a main restoring machine for a polyfoam mortar mounted on each chamber bottom of a chamber block to mitigate shooting impact.

The conventional 60mm and 81mm mortars can be carried directly by infantry, but in the case of 120mm mortars, the infantry is difficult to carry directly due to an increase in the weight of the mortar, and thus it is being operated in a direction to be mounted on a vehicle.

However, mortars with large calibers have a higher impact impact force than mortars less than 81mm, and if the mortars are mounted on vehicles under the structure in which the increased impact force is directly transmitted to the slabs, they must meet the rigidity requirements of the vehicle frame. Due to the increase in the weight of the vehicle and the power system of the vehicle also requires a large capacity. Therefore, a problem arises that an improvement is required to increase the structural strength of the vehicle operating in the military.

In addition, the already filed dafosin mortar (application number: 10-2012-0127141) can automate shell loading and shell firing, and can be mounted and operated in various types of vehicles to improve maneuverability and survivability.

The multifoam mortar is characterized by the fact that a large number of shells are fired at the same time as the radiation cannon, and the shooting impact force is also generated continuously and transmitted to the turret so that the vibration (shaking) of the polyfoam mortar and the structural strength of the vehicle should be improved. As a countermeasure to solve the problem, a device that can mitigate the fire impact generated in each chamber is required.

The present invention has been made to solve the above problems,

The purpose of the present invention is to provide a retractor for a polyfoam mortar capable of triggering shells loaded in each chamber combined with multiple barrels using high pressure gas generated from other chambers and minimizing the fire impact generated when the shell is fired. have.

In order to achieve the above object, the main retractor for multifossil mortar according to the present invention, in each chamber coupled with the barrel of the barrel unit, absorbs the shell triggering force and the impact force generated during the trigger to minimize the shock transmitted to the shell plate In the main retractor for dafosin mortar,

Chambers 501, 502, 503, 505 and 508 coupled and perforated to have the same centerline as the barrels 301, 302, 303, 305 and 308 of the barrel unit;

A body portion 660 composed of a main piston chamber 661 having a sub piston chamber 670 therein and coupled to the chamber bottom surface 59;

The main piston 620 is positioned in the middle of both rods 640 and 650 having the percussion device 70, the air valve 642, and the air discharge pipe 651, and the chamber piston 610 and the sub piston at each end of the rods. 630 is a piston bundle 600 is integrally coupled to the concentric circle and inserted into the chamber and the body portion;

In order to connect the chamber 501 and the chamber 502 to form a high-pressure gas passage, there is a valve chamber 815 having a full chamber port 720 formed on the upper surface and a chamber port 721 formed on the inner circumferential surface thereof. Three-port valves (80, 81, 82) including springs (830) inserted and elastically supporting the valves, and valves (810, 811) having air inlet pipes (820);

A percussion pneumatic circuit including a solenoid valve 800 attached to an outer surface of the chamber block and pipes 850 and 851 connecting the solenoid valve and the three port valve;

An oil 690 embedded in the main piston chamber;

It is inserted into the main piston chamber through the air valve 642 to form a space between the oil and the main piston and consists of an air layer 695 having a compressibility,

The piston inside retracted by the shooting impact force causes the oil inside the sub-piston chamber to be compressed and discharged first, and the resistance is generated. Secondly, the main piston compresses the air layer to relieve the shooting impact force, and by the compression force accumulated in the air layer. The piston bundle is characterized in that the original position.

As described above, the main reinforcement seat for the dafosin mortar according to the present invention,

It is possible to minimize the firing impact generated when a plurality of shells inserted into each chamber are fired continuously, thereby increasing the size of the mortar easily, improving the shooting stability due to the anti-shake of the polyfoam mortar,

Dafossin mortars can be mounted on vehicles without improving the structural strength of existing vehicles.

1 is a perspective view showing a polyfoss mortar mortar coupled to the main backrest in each chamber coupled with nine barrels according to an embodiment of the present invention.
2 is a cross-sectional view taken along line AA of FIG.
3 is a partial enlarged view showing a three-port valve for cutting the polyfoam mortar of FIG. 1 with a BB, coupled to the bottom of each chamber of the chamber block coupled to the barrel unit, and the triggering function of the main retractor; .
Figure 4 is a view for explaining the percussion pneumatic circuit of the main reinforcement for multifoam mortar according to an embodiment of the present invention.
5 is a view showing a state in which a chamber block, in which a main retractor is coupled to each chamber of FIGS. 1 and 3, is rotated at an angle to load a shell;
<Explanation of Signs of Major Parts of Drawings>
20: gun plate, 21: clevis 22: frame
25: robot arm 30, 30a, 30b: barrel unit 31: closed flange disc
33: V groove 36: Double clevis 39: central axis
301,302,303,305,308: barrel 4: elevation control device
5: chamber block 50: gap space 501,502,505,508: chamber
52: closing ring 56, 57: biaxial 59: chamber bottom
60,61,63,64,66,67: Main retreat seat 600: Piston bunch
610: chamber piston 611: piston top surface 620: main piston
630: sub piston 640,650: piston rod 641: pneumatic door
642: air valve 651: air discharge pipe
660: body portion 661: main piston chamber 670: sub piston chamber
664,713: outlet 671: oil inlet 680: compression spring
690 oil 695 air layer 697 fastening bolt
70: trigger device 700: sinking piston chamber 711: sinking rod
712: spring 714: fixed plate 720: full chamber port
721,723 Chamber port 730,731
80,81,82: 3 port valve 800: solenoid valve 810,811; valve
812: fixed piece 815: valve chamber 820: air inlet pipe
830: Spring 840,841,842,844: Joint
850,851,853 Piping 91 Cylinder 93 Gear
94: geared motor

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the main restoring seat for a polyfoam mortar according to an embodiment of the present invention.

As shown in Figure 1, Figure 2, Figure 3, Figure 4, the polyfoam mortar according to an embodiment of the present invention is

A swash plate 20 on which clevis 21 is formed to support the biaxial shafts 56 and 57 of the chamber block;

A plurality of barrel units (30, 30a, 30b) coupled to the closing ring 52 of the chamber block by the closed plan support plate 31 is integrally coupled to the frame at regular intervals and coupled to the biaxial (56, 57) again Multiple gun barrels capable of shooting at high angles (301,302,303,305,308);

The biaxial of the chamber block is coupled to the clevis in a rotatable state, and can be combined with and separated from the multiple barrel by using the closing ring 52 formed on the circumferential surface thereof, and vertically and horizontally so as to coincide with the center axis 39 of the barrel. Chamber blocks 5 including chambers 501, 502, 503, 505 and 508 arranged in a direction;

The pinion gear engaged with the gear 93 coupled to the chamber block to couple the chamber block to the multi- barrel barrel, rotate to the position where the shell can be loaded, or to the position of removing the unexploded shell remaining in the chamber. A chamber block rotating device including a geared motor 94;

An alignment device including a cylinder (91) having a conical rod inserted into a conical groove (33) formed on the circumferential surface of the closing ring to align the barrel and the chamber with the same central axis in an environment in which a shooting impact force occurs;

A shell loader using the robot arm 25 installed on the shell;

An elevation control device 4 for adjusting the elevation of the multiple barrels by a screw jack device coupled to one side of the double clevis 36 and the other side of the slab 20 and driven by a control device;

A control device for driving control of the elevation control device, the alignment device, the chamber block rotation device, the shell loader, and the solenoid valve 800 of the percussion pneumatic circuit;

Piston bundle 660 having a trigger device 70 is inserted into the main piston chamber 661, the sub-piston chamber 670, and the chamber 501, respectively, the shell is triggered, and coupled to the barrel by the trigger The piston bundle is subjected to the shooting impact generated in the chamber to relieve the shock by compressing the oil 690 and the air layer 695 while performing a linear linear movement, and a plurality of main retractors coupled to the bottom surface 59 of each chamber ( 60,61,63,64,66,67;

It is driven by the control device and consists of a triggering pneumatic circuit which can start shell shooting using external air pressure or select an arbitrary main return seat to trigger the shell.

The triggered pneumatic circuit is as shown in Figure 4,

The main purpose is to trigger the shell inserted in the first chamber 501 by using external air pressure, and in addition, if any shell inserted in the chamber is not fired, To implement the function of triggering the shell inserted in the chamber to maintain the continuity of the shooting

A solenoid valve 800 coupled to one surface of the chamber block and driven by a control signal of the control device; Piping (850, 851) connecting the solenoid valve and the 3-port valve; It characterized in that it comprises a pipe (853) connecting the joint 841 and the joint 842 in order to maintain the continuity of shooting from the barrel unit to another barrel unit.

On the other hand, the main retractor (60, 61, 63, 64, 66, 67) as shown in Figure 3,

It is coupled to each chamber bottom (59) by a fastening bolt (697), and has a sub-piston chamber (670) therein to increase the oil resistance while supporting the piston bundle in linear movement under high pressure in two places A body portion 660 formed of a main piston chamber 661 and coupled to the chamber bottom surface 59;

The main piston 620 is positioned in the middle of both rods 640 and 650 having a percussion device 70, an air valve 642 and an air discharge pipe 651, and a chamber piston 610 at each end of both rods 640 and 650. And a piston bundle 600 in which the sub piston 630 is integrally coupled to the concentric circle and inserted into the chamber and the body;

The upper chamber and the chamber and the chamber chamber 720 through which the upper chamber and the chamber are penetrated, and the chamber ports 721 and 723 and the stationary piece 812, which penetrate through the chamber and the chamber to form a high pressure gas passage passage through the chamber and chamber. ) Is coupled to the valve chamber 815 and the valve chamber 810 and 811 inserted into the valve chamber and fixed to the fixed piece 812 so as to be movable, the air inlet pipe 820 is formed in the center, between the valve chamber and the valve Three port valves (80, 81, 82) including a spring (830) installed to elastically support the valve;

An oil 690 embedded in the main piston chamber;

It is inserted into the main piston chamber through the air valve 642 to form a space between the oil and the main piston, characterized in that composed of an air layer 695 having a compressibility.

The main piston chamber 661 has an insertion hole of the piston rod 640 perforated on the upper surface; It is characterized by being located in the chamber as a hole perforated around the insertion hole, the vacuum state generated in the space formed between the main piston and the main piston chamber and the piston rod 640 that is easy to enter and retreat by the impact impact And an outlet 664 that prevents a compressed state from occurring and prevents the piston from returning to its original position.

In addition, the sub-piston chamber 670, which has a concentric circle in the main piston chamber, is firmly supported by both the main piston and the sub-piston as a descending linear motion under tremendous impact force, so that the outer circumferential surface of the chamber piston and the inner circumferential surface of the chamber In order to alleviate the impact by maximally generating the frictional resistance of the oil while minimizing the friction of the oil and facilitating the linear movement.

An oil inlet 671 formed at the bottom of the sub-piston chamber is provided to allow the oil compressed through the oil inlet to move to the main piston chamber, and to prevent the descending sub-piston from colliding with the inner surface of the body part. One side is coupled to the inner bottom of the compression spring 680 is included.

The main piston 620 includes a packing fitted to an outer circumferential surface of the piston in order to prevent airtightness and leakage of oil.

The chamber piston 610 is a piston that serves as the bottom of the chamber and is fitted to the outer circumferential surface of the piston to contact with high pressure and high heat and to minimize the wear and tear on the inner surface of the chamber while performing linear movement up and down along the inner circumference of the chamber. A metallic ring.

The air discharge pipe 651 formed on the piston rod of the piston bundle is

It is a passage for supplying air provided through the air valve 642 into the main piston chamber, and discharges oil compressed by the sub piston as it moves backward from the sub piston chamber to the main piston chamber, thereby generating resistance and remaining in the sub piston chamber. Exhale air.

The air discharge pipe 651 is a pipe line which penetrates from one end of the piston rod 650 to an air valve coupled to the circumferential surface of the piston rod 640 between the bottom surface of the sinking piston chamber 700 and the main piston, It is characterized in that it is formed of a tube that passes through the circumferential surface and the circumferential surface of the piston rod 650 between the piston and the sub piston and intersect the pipeline.

In particular, the air discharge pipe 651, as shown in Figure 5,

When the chamber block is inclined at an angle, air moves and enters the subpiston chamber, and even after the chamber block is rotated to its original position, if air remains in the subpiston chamber, the remaining air is easily discharged to form an air layer.

The air valve 642 coupled to the air discharge pipe is a valve for supplying or discharging air to the main piston chamber, and the piston rod 640 inserted into the chamber is inserted into the rod insertion port to perform a linear reciprocating motion of the piston rod 640. It is characterized in that it is coupled to the air discharge pipe 651 so that the air valve does not protrude over the circumferential surface.

The triggering device 70 is a device for implementing the triggering function of the main retractor of the present invention

It is operated by using a high pressure gas generated from the shell firing or air pressure provided from the outside, is formed at one end of the central portion of the piston rod 640, the pneumatic inlet 641 is formed at the bottom, the discharge port 713 at the tip A sinking piston chamber 700 formed by coupling the fixed plate 714 provided therewith; A sinking piston 730.731 inserted into the sinking piston chamber 700 and movably coupled to the fixed plate, and having a sinking rod 711 coupled to the fixed plate; The spring 712 is installed between the sinking piston and the fixed plate to elastically support the sinking piston.

The spring 712 is to load the shell in the chamber so that the conical sunken rod 711 does not protrude to the upper surface 611 of the chamber piston even when the high pressure gas or external air pressure generated during the ignition of the charge is not provided. Prevent triggers in the process.

However, the main retractor according to the present invention having a trigger device in which the three-port valves 80, 81, 82 and the spring 712 are removed, and the sinking rod 711 is coupled to the upper surface 611 of the chamber piston is fixed. It is possible to apply the main mortar to the main mortar and to reduce the impact of the main mortar to reduce the weight and volume of the conventional mortar.

Hereinafter will be described with respect to the operation of the main restoring seat for the polyfoam mortar of the present invention described above.

When the air pressure supplied from the outside by the solenoid valve 800 operated by the control signal of the control device acts on the valve 811 of the 3-port valve 80 via the pipe 850, the valve compresses the spring and moves forward. And, the air inlet pipe 820 and the chamber port 723 of the advanced valve is connected, the air pressure is introduced into the chamber inner peripheral surface and the clearance space formed by the piston rod 640 and the chamber piston, the inlet air pressure to the piston rod Advance the sunken piston 730 through the formed pneumatic entrance 641 to strike the detonator of the shell to ignite the charge and the shell is started by the high pressure gas generated by the shell as the shell fires.

At this time, the high-pressure gas generated is the chamber chamber 720, the three-port valve 81, the piston space inserted into the other chamber adjacent through the chamber port 721 and the clearance space 50 formed by the inner circumferential surface of the chamber and the air pressure While being delivered to the sunken piston 731 through the doorway 641,

The advanced sunk piston 730 is returned by the restoring force of the spring and the high pressure gas introduced through the discharge port 713 is returned to the original position, at the same time the piston bundle 600 including the chamber piston 610 that is the bottom of the chamber is fired The impact force causes a rapid reverse.

The sub piston 630 of the revolving piston bundle is advanced while compressing the oil located inside the sub piston chamber 670, and the compressed oil is main piston chamber 661 through the oil inlet 671 and the air discharge pipe 651. The strong resistance is generated while moving to, and the compression spring 680 is compressed by the piston 630 to move forward.

The oil level is increased by the oil discharged from the sub-piston chamber 670, and the air layer 695 is compressed by the revolving main piston 620 while the piston bundle 600 serving as the bottom of the chamber receives the shooting impact force. Absorption is alleviated.

As soon as the shell rising along the muzzle exits the muzzle, the pressure in the chamber combined with the barrel decreases rapidly and the piston bundle 600 retracted by the restoring force of the compressed spring 680 and the energy accumulated in the compressed air layer returns to its original position. The oil located in the main piston chamber 661 moves back to the sub piston chamber 670 through the oil inlet 671, and the oil level is also lowered.

Therefore, after shell firing is initiated by external air pressure and percussion pneumatic circuit,

The process of automatically triggering the shells inserted into the next adjacent chamber by the generated high-pressure gas is repeated, and multiple shells loaded in each chamber are triggered and fired at the same time.

Claims (2)

In the main recuperator for the polyfoam mortar to absorb the fire impact generated in the chamber combined with the multiple barrels to minimize the shock transmitted to the slab,
Chambers 501, 502, 503, 505 and 508 coupled and perforated to have the same centerline as the barrels 301, 302, 303, 305 and 308 of the barrel unit; A body portion 660 composed of a main piston chamber 661 having a sub piston chamber 670 therein and coupled to the chamber bottom surface 59;
The main piston 620 is positioned in the middle of both rods 640 and 650 having a percussion device 70, an air valve 642 and an air discharge pipe 651, and a chamber piston 610 at each end of both rods 640 and 650. And a piston bundle 600 in which the sub piston 630 is integrally coupled to the concentric circle and inserted into the chamber and the body;
A valve chamber 815 having a chamber chamber 720 formed on the upper surface and a chamber port 721 formed on the inner circumferential surface of the chamber 501 and the chamber 502 to form a high pressure gas passage;
A three-port valve (80,81,82) including a spring (830) inserted into the valve chamber (815) to elastically support the valve, and valves (810,811) having an air inlet pipe (820);
A percussion pneumatic circuit including a solenoid valve 800 attached to an outer surface of the chamber block and pipes 850 and 851 connecting the solenoid valve and the three port valve;
An oil 690 embedded in the main piston chamber;
The air layer 695 provided through the air valve 642 into the main piston chamber to form a space between the oil and the main piston and having a compressibility;
The piston inside the sub-piston chamber is compressed and discharged by the piston bundle that retreats by the shooting impact force to generate resistance. Main retractor for multifoam mortar, characterized in that the piston bundle is in place. The method of claim 1,
The percussion device 70 of the piston bundle is formed at one end of the central portion of the piston rod 640, and an air extruded inlet 641 is formed at the lower end thereof, and a fixed plate 714 having an outlet 713 is coupled to the front end thereof. A formed sinking piston chamber 700;
A sinking piston 730.731 inserted into the sinking piston chamber 700 and movably coupled to the fixed plate, and having a sinking rod 711 coupled to the fixed plate;
It is installed between the sinking piston and the fixed plate, the main reinforcement seat for the multi-foam mortar, characterized in that consisting of a spring 712 elastically supporting the sinking piston.

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