DE3733215A1 - Device and method for moving a weapon barrel longitudinally in the axial direction - Google Patents

Abstract

According to the invention, a device and a method are proposed for moving a weapon barrel backwards and forwards longitudinally in the axial direction, the device being connected by means of flexible hydraulic hoses both to a hydraulic system and to a filling connecting stub of a hydropneumatic barrel counter-recoil mechanism and to a filling connecting stub of a hydraulic barrel brake. Despite the device being of simple construction, it allows the backwards and forwards movement of a weapon barrel to be carried out continuously and at an adjustable speed, without snatching, for carrying out repair, test and adjustment tasks. The device is simple to operate and, because of its low weight and small size, can also easily be carried in an armoured vehicle. The device (10) according to the invention for moving a weapon barrel longitudinally in the axial direction into a weapon housing (56) of a firing post (weapon system) (52) comprises essentially one 4/3-way valve (24) having three switch positions (64, 66 and 68), a pressure-reducing valve (26) and two adjustable restrictor valves (36, 38), which are connected to one another. The device (10) is connected by means of two hydraulic hoses (20, 22) having quick-release couplings (18) to a pressure connection (14) and a tank connection (16) of a hydraulic system (12) on the input side. On the output side, the device (10)... via two further hydraulic hoses (44, 46) to the filling connecting stubs (59 and 61 respectively) for a barrel counter-recoil mechanism ... Original abstract incomplete. <IMAGE>

Description

The invention relates to a device according to the Oberbe handle of claim 1 and a method for lengthways axially moving a gun barrel using that Contraption.

A distinction can be made with generic weapon systems frequent adjustment, testing and repair work only carry out when the weapon barrel from its front their position has been moved back. Is an additional Device for moving the gun barrel not available, the longitudinal axial tube movement proves to be extraordinary elaborate. In such cases, at least one Chain hoist or forklift to be operated on such device usually under operating conditions is not carried. So are corresponding works required, the corresponding weapon system must be off the area of operation, or the weapon system at worst it will be abandoned.

From DE-PS 19 64 896 is a pipe moving device known for guns, which is designed to carry arms pipe from its front fire into a rear driving or lashing position and then back into the fire box bring lung. One in a pipe rewinder Piston rod for a piston is designed as a hollow cylinder tet and forms a compressed gas space, with a liquid space surrounds the hollow piston rod as an annular space. A on Gun barrel attached driver is via a connection part firmly with the hollow piston rod of the pipe recoiler connected, and the end facing away from the connecting part one cylinder of the pipe recoiler is fixed with a cradle  connected. There is also a cylinder on the cradle Pipe moving device arranged. One in it axially Movable piston with piston rod has one with the Connection part loosely connected free end. The Annulus of the pipe recoiler and the cylinder interior of the Pipe moving devices are for performing the procedure rens connected as follows: A first Line leads from the annulus of the pipe recoiler a shut-off valve, a directional control valve and a pump in one Storage container. A second line connects the Zylin the interior of the pipe moving device via a shut-off valve and the directional valve with the reservoir. A Pressure relief valve is located between the two lines in the loading rich between the respective shut-off valve and the directional valve.

For moving the gun barrel backwards The two shut-off valves are in the driving or lashing position open. By means of the pump, the directional valve Brake fluid through the second line into the cylinder promoted interior of the pipe movement device. Theirs Piston is moved, leaving the free end of the piston rod pushes against the connecting part. This will also the piston in the pipe recoiler retracted and ver urges the brake fluid from the annulus over the first line and the directional valve described in more detail above into the storage container so that the gun barrel from the front their fire in the rear driving or lashing position is moved. To move the gun barrel in reverse the procedure essentially in the opposite direction guided.

The tube movement device remains installed on the gun but their piston rod and piston remain during of shooting at rest.

A disadvantage of that described in DE-PS 19 64 896 Pipe movement device is that it takes up the build volume a weapon system equipped with it ver enlarged. This is particularly disadvantageous if one  such weapon system as a turret-mounted barrel weapon Should be used. Another disadvantage is the proposal pipe movement device the complex construction, which is a disproportionately large additional maintenance effort required.

The invention is therefore based on the object direction and a method for longitudinal axial movement to create a weapon barrel of a weapon system, whereby the device itself from the known devices differentiate with little effort and greater simplicity det, the construction volume of the barrel weapon is not increased unnecessarily and easily take them to areas of application leaves.

This task is solved by the in the characteristic Part of claim 1 specified according to the invention Device and by that described in claim 5 Method for using the device according to the invention. Further embodiments of the invention are given in the subordinate say 2 to 4.

The particular advantage of the invention can be seen in that the device for moving a gun barrel prak table is designed as a small valve block with four flexible hydraulic hoses each with the Hydrau likananlage and the weapon system itself is connected. The This makes the device light, easy to transport and to handle and requires little storage space. Under Application of the method according to the invention is a con continuous and safe forward and backward movement the weapon barrel in any desired intermediate or stop position allows. It can also be advantageous Way the forward or backward movement of the gun barrel be regulated in their speed so that the ge desired position of the gun barrel by a slow and sensitive pipe return or flow through the entire pipe elevation range can be reached exactly.  

The additional use of a print according to the invention minder valves increases occupational safety. It is also advantageous that after a single vent of the connected device according to the invention Gun system or to the hydraulic system by the use Deten quick-release couplings a new entry is prevented from air into the system, so that repeated venting is unnecessary. Another advantage the device according to the invention is that according to An close to the filler neck of the pipe brake and pipe recoiler for changing the oil filling of the pipe brake at low temperature with warmed hydraulic oil from the pressure oil supplier armored vehicle for example that can.

In the following the device according to the invention Moving a gun barrel using a schematic Representation explained in detail, including the procedure for using the device according to the invention will.

A pipe movement device 10 is connected to a hydraulic system 12 , for example in an armored vehicle, with a pressure connection 14 and a tank connection 16 . The connection between the pipe movement device 10 and the hydraulic system 12 is made possible by two advantageously flexible hydraulic hoses, which are each end with quick-release couplings 18 with mechanically opening check valves. Both the pressure connection 14 and the tank connection 16 of the hy draulic system 12 have corresponding quick-action couplings 18 . A first hydraulic hose 20 connects the pressure connection 14 of the hydraulic system 12 with the pipe movement device 10 and a second hydraulic hose 22 connects the tank connection 16 of the hydraulic position 12 also with the pipe movement device 10 , since the pipe movement device 10 with quick-action couplings 18 is equipped on the input side.

Inside the, for example, a valve block, pipe movement device 10 , the first hydraulic hose 20 is connected via a pressure line 28 and the second hydraulic hose 22 via a tank line 30 to a 4/3-way valve 24 . Preferably, the three switching positions of the 4/3-way valve 24 can be switched mechanically by means of a lever, which is not described here in greater detail, the switching positions being lockable. At the output of the 4/3-way valve 24 , a first Rohrvor holer line 32 and a first pipe brake line 34 are closed. In the first pipe brake line 34 , a pressure reducing valve 26 and an adjustable second throttle valve 38 is inserted, the latter being part of a check valve with adjustable throttling. An adjustable first throttle valve 36 is inserted into the first pipe recuperator line 32 . On the input side of the pipe movement device 10 , both the pressure line 28 and the tank line 30 each contain a filter 40 . A manometer 42 , which is connected via a shuttle valve 43 to the first pipe recuperator line 32 and the first pipe brake line 34 , is used to monitor the working pressure in the pipe movement device 10 . From the aisle, two possibilities for the connection of quick-action couplings 18 are provided on the pipe movement device 10 , so that a flexible third hydraulic hose 44 is connected to the first pipe catcher line 32 and a flexible fourth hydraulic hose 46 is connected to the first pipe brake line 34 can. These hydraulic hoses 44 , 46 are similar to the first hydraulic hose 20 and the second hydraulic hose 22 each end equipped with quick-release couplings 18 . The third hydraulic hose 44 and the fourth hydraulic hose 46 connect the pipe movement device 10 with a weapon system 52 , which on a filler neck 59 for a pipe recoiler 58 and a filler neck 61 for a pipe brake 60 each have quick-action couplings 18 .

The filler neck 59 for the pipe recoiler 58 is connected to it by a second pipe recoiler line 48 . The filler neck 61 for the pipe brake 60 is connected to this by a second pipe brake line 50 . A compensating damper 62 is also connected to the pipe brake 60 . For clarification, a gun barrel 54 is also shown as belonging to the weapon system 52 in a gun housing 56 . 64, 66 and 68 denote a first, a second and a third switching position of the 4/3-way valve in the tube movement device 10 .

On the device 10 for the longitudinal axial movement of the gun barrel 54 in the gun housing 56 of the weapon system 52 , the four hydraulic hoses 20 , 22 , 44 and 46 are each with their quick-release couplings 18 to the corresponding connections of the pressure line 28 and the tank line 30 and the first Rohrvorholer-Lei device 32 and the first pipe brake line 34 of the device 10 Vorrich connected. Then the first hydraulic hose 20 , which is connected to the pressure line 28 of the device 10 , with the pressure connection 14 of the hydraulic system 12 and the second hydraulic hose 22 is connected to the tank connection 16 of the hydraulic system. Before the first start-up and before the further connection of the device 10 with the weapon system 52 through the third hydraulic hose 44 and the fourth hydraulic hose 46 , the device 10 is vented in a manner known per se. The quick-release couplings 18 used on the hydrau likschläuchen 20 , 22 , 44 and 46 then prevent a new entry of air, so that repeated venting is not necessary.

For operation of the apparatus 10 of the third hydraulic hose 44 is now with the filling nozzle 59 for the tube recuperator 58 and the fourth hydraulic hose 44 is now connected to the filler pipe 61 for the recoil brake 60th

For a return movement of the weapon barrel 54 , the 4/3-way valve 24 is switched from its second switching position 66 , the rest position, into the first switching position 64 . The hydraulic medium located in the hydraulic system 12 now passes through the pressure connection 14 of the hydraulic system 12 through the first hydraulic hose 20 into the pressure line 28 of the device 10 and into the 4/3-way valve 24 . There, the hydraulic fluid is pressed into the first pipe brake line 34 , a pressure reducing valve 26 monitoring the permissible working pressure and setting such that the working pressure in the entire system is below the maximum permissible pressure of the pipe brake 60 . Through the first pipe brake line 34 , the hydraulic fluid is pressed through the fourth hydraulic hose 46 via the filler neck 61 for the pipe brake 60 into the second pipe brake line 50 and from there into the known pipe brake 60 . The piston located in the tube brake 60 is thereby pressurized and moves via its piston rod, which is articulated in the weapon housing 56 , the weapon housing 56 and thus the weapon barrel 54 backwards. The hydraulic fluid located in the tube feeder 58 is pressed into the second tube feeder line 48 and flows through the filler neck 59 into the third hydraulic hose 44 and from there into the direction 10 in the first tube feeder line 32 . Since the 4/3-way valve 24 in its first switching position 64 continuously connects the tank line 30 to the first pipe recuperator line 32 , the hydraulic medium coming from the pipe recoiler 58 flows via the tank line 30 and the second hydraulic hose 22 into the tank connection 16 of the hydraulic system 12 from. The described backward movement of the weapon barrel 54 is infinitely variable in its speed by adjusting the adjustable throttle valves 36 , 38 . The working pressure in the device 10 for the axial movement of the weapon barrel 54 can be checked on the manometer 42 , so that the setting of the pressure reducing valve 26 can be changed if necessary. In order to filter out undesirable suspended matter in the transported hydraulic medium, which could lead to impairment of the functions of the valves, filters 40 are inserted into the pressure line 28 and the tank line 30 of the device 10 .

In order to move the gun barrel 54 back into its front position after checking or setting work has been carried out, the 4/3-way valve 24 is switched to its third switching position 68 . In this position, the pressure line 28 connected to the pressure connection 14 of the hydraulic system 12 is connected to the first pipe recuperator line 32 and the tank connection 16 of the hydraulic system 12 via the tank line 30 to the first pipe brake line 34 . In this case, the hydraulic medium of the hydraulic system 12 is pressed via the third hydraulic hose 44 into the filler neck 59 of the pipe recoiler 58 . The piston located inside the known hydropneumatic barrel retractor 58 and connected to the weapon housing is pressurized and moves the weapon barrel 54 into its forward position. The until then in the pipe brake 60 be sensitive hydraulic fluid is drained through the filler neck 61 through the fourth hydraulic hose 46 and the first pipe brake line 34 in the tank port 16 of the hydraulic system 12 . By appropriate adjustment of the throttle valves 36 , 38 of the device 10 , the Vorlaufbe movement of the gun barrel is adjustable in the desired manner.

Advantageously, the Vorrich device 10 according to the invention can also be brought into a position when the weapon barrel 54 is retracted, in which, for example, the nitrogen reservoir of the known hydropneumatic barrel recoiler 58 can be filled.

Reference symbol list

10 pipe movement device
12 hydraulic system
14 pressure connection of ( 12 )
16 tank connection from ( 12 )
18 quick-release couplings
20 first hydraulic hose
22 second hydraulic hose
24 ⁴ / ₃-way valve
28 pressure line
30 tank line
32 first pipe leader line
34 first pipe brake line
36 first throttle valve in ( 32 )
38 second throttle valve in ( 34 )
40 filters
42 manometers
43 shuttle valve
44 third hydraulic hose
44 third hydraulic hose
46 fourth hydraulic hose
48 second pipe recoiler line
50 second pipe brake line
52 weapon system
54 gun barrel
56 weapon housing
58 pipe recoilers
59 filler neck for ( 58 )
60 pipe brake
61 filler neck for ( 60 )
62 balance damper
64 first switching position of ( 24 )
66 second switching position of ( 24 )
68 third switching position of ( 24 )

Claims (6)

1. Device ( 10 ) for longitudinally moving a weapon barrel ( 54 ) of a weapon system ( 52 ) with a hydraulic system ( 12 ) and with a hydraulic tube brake ( 60 ) and one of the latter be independently operating hydropneumatic Rohrvorho ler ( 58 ), characterized by following features:

• a) The device ( 10 ) for moving the weapon barrel ( 54 ) essentially comprises a 4/3-way valve ( 24 ) and hydraulic lines ( 28 , 30 , 32 , 34 ) and two adjustable throttle valves ( 36 , 38 );
• b) the device ( 10 ) for moving the weapon barrel ( 54 ) is two hydraulic hoses ( 20 , 22 ) with the hydraulic system ( 12 ) and two further hydraulic hoses ( 44 , 46 ) each with the tube forward ( 58 ) and with the Pipe brake ( 60 ) connectable;
• c) on the hydraulic hoses ( 20 , 22 , 44 , 46 ) each have quick-release couplings ( 18 ) with mechanically opening check valves.

2. Device according to claim 1, characterized in that the 4/3-way valve ( 24 ) is switched mechanically by a lever against a return spring in its three switching positions ( 64 , 66 , 68 ) and in the respective switching position ( 64 , 66 or 68 ) can be locked. 3. Apparatus according to claim 1, characterized in that a pressure reducing valve ( 26 ) is provided in one of the hydraulic lines ( 32 , 34 ) to the weapon system ( 52 ). 4. The device according to claim 1, characterized in that in one of the hydraulic lines ( 32 , 34 ) to the weapon system ( 52 ) one of the throttle valves ( 38 ) is part of a check valve with adjustable throttling. 5. A method for longitudinally moving a weapon barrel ( 54 ) by means of the device ( 10 ) according to one of claims 1 to 4 or a combination thereof, characterized by the following method steps:

• a) The device ( 10 ) with two hydraulic hoses ( 20 , 22 ) with a hydraulic system ( 12 ) and with two hydraulic hoses ( 44 , 46 ) with the weapon system ( 52 ), more precisely with a filler neck ( 59 ) for the pipe recoiler ( 58 ) and with a filler neck ( 61 ) for the pipe brake ( 60 ), the verbun;
• b) of the recuperator (58) is continuously connected to a tank port (16) of the hydraulic system (12), whereby the recuperator (58) is taken from such a quantity of hydraulic means that acted upon by the recuperator (58) the weapon barrel (54) is substantially becomes free of forces.
• c) the tube brake ( 60 ) is supplied with such an amount of hydraulic fluid that the weapon barrel ( 54 ) is moved back overcoming frictional forces;

To move the gun barrel ( 54 ) forward, hydraulic tube is removed from the tube brake ( 60 ) in accordance with method steps b) and c) and hydraulic tube feeder ( 58 ) is supplied.