EP3908799A1

EP3908799A1 - Gun barrel mounting and gun

Info

Publication number: EP3908799A1
Application number: EP19828614.8A
Authority: EP
Inventors: Florian SCHWIEGER; Berthold Baumann; Rüdiger BORCHERT
Original assignee: Rheinmetall Waffe Munition GmbH
Current assignee: Rheinmetall Waffe Munition GmbH
Priority date: 2019-01-11
Filing date: 2019-12-12
Publication date: 2021-11-17
Anticipated expiration: 2039-12-12
Also published as: ZA202105637B; JP2022518405A; AU2019420325B2; ES2960200T3; US20220074697A1; KR20210122786A; EP3908799B1; PL3908799T3; SG11202107601UA; DE102019100579A1; CA3126314A1; SI3908799T1; AU2019420325A1; WO2020143985A1; US11585625B2; JP7174165B2; IL284735A; KR102601388B1; HUE063174T2

Abstract

The invention relates to a gun barrel mounting for a gun barrel (1), comprising a cradle (2) with at least one gun mounting (5, 6) for mounting the gun barrel (1) and a base part (3) that can be connected to the gun barrel (1).

Description

DESCRIPTION

Gun barrel storage and barrel weapon

The invention relates to a weapon barrel storage for a weapon barrel, in particular a large caliber weapon, comprising a cradle with at least one tube storage for storing the Waf fenrohrs and a bottom piece connectable to the weapon barrel.

Furthermore, the application relates to a barrel weapon, in particular a large-caliber weapon, comprising at least one such weapon barrel storage and at least one weapon barrel connected to the base piece.

A weapon barrel is usually stored in a cradle to allow the bolt and barrel to run back. The bearing is usually designed as a plain bearing bush. This storage should be designed with as little play as possible in order to achieve high precision of the weapon system. Due to thermal expansion and the expansion of the gun barrel due to the internal pressure occurring during the shot, however, a small bearing clearance is required. Due to this bearing play, the tube is usually only on the bottom of the tube on the bearing due to its own weight. If there is a shot, the pipe expands under the gas pressure. The center of the tube carries out a lifting movement in the vertical direction. This stroke movement represents a vibration excitation of the barrel and has negative effects on the precision of the weapon system.

DE 31 48 265 A1 discloses a bearing for a large-caliber weapon, which supports the weapon barrel in two sliding bushes which are arranged at the muzzle and bottom end of a cradle barrel. In such a sliding bushing storage, in which the Waf fenrohr rests due to the mass on the lower bearing inner edge, the gun barrel lifts due to the tube expansion occurring when the shot is fired. This leads to vibrations of the weapon barrel and has a negative impact on the accuracy of the hit of the respective projectile. DE 39 36 454 A1 discloses, in order to avoid the tube vibrations that occur during firing, of a large-caliber tube instead of conventional slide bush bearings to use stroke-effect-free bearings in which the weapon barrel does not strike a fixed stop when firing in the radial direction, so that both in the horizontal and in the vertical direction Tube expansion can take place. For storing the weapon barrel in the cradle barrel, four evenly distributed, extending in the direction of the longitudinal axis and designed as slide rails guide rails are provided on the circumferential side of the weapon barrel, which engage in corresponding guide grooves of the cradle barrel such that the directions of the bearing force and the radial tube expansion in each case are perpendicular to each other. The disadvantage of this storage is, above all, that the guide rails and guide grooves on the weapon barrel extend over the entire length of the cradle barrel and therefore a high manufacturing outlay is required. For larger weapon systems, the guide elements are provided at least in some areas in the front and rear or in several areas. The replacement of the weapon barrel is time-consuming in the case of barrel weapons of this type, and the outside diameter of the cradle is relatively large due to the use of such a bearing.

From DE 31 50 250 A1 a barrel weapon with stroke-free storage of a large-caliber weapon barrel in a cradle barrel is known. Again, four guide rails are angeord net, but not as a plain bearing, but as a roller bearing, the bearing surfaces of the guide rails are supported on the corresponding bearing surfaces of the cradle tube via rolling elements which are guided by flat cages in the pipe return. DE 31 50 250 A1 sees a disadvantage of the prior art on which this application is based, that only slide bearings are used for the longitudinally displaceable guidance of large-caliber gun barrels which, in order not to block, require an extraordinarily large bearing play. However, this camp game in turn has a negative impact on the accuracy of the hit. To solve the problem, it is therefore proposed to also include roller bearings instead of the plain bearings, so that the gun barrel not only runs completely free of play, but also works completely without slippage and wear.

DE 31 48 265 A1 is also based on the storage of a return and forward large-caliber weapon barrel by means of two plain bearing bushes as state of the art and notes that as a result of a plain bearing clearance to be maintained, the accuracy of hits is impaired by uncontrolled cross-tube movements. This problem is solved in that the weapon barrel is now stored without play within two bearings arranged in the cradle barrel. From DE 198 00 193 A1 a centered weapon barrel front bearing for large-caliber weapons is known, which stores the weapon barrel in the area of the cradle tube on the bottom piece side with a sliding bush bearing known per se with an existing fit clearance specification.

Another central tube bearing for large-caliber weapons is described in DE 102 26 534 A1. In it, the weapon barrel is mounted in a first at the mouth end and in a second at the bottom end of the cradle arranged sliding bushing ger. The first sliding bush bearing is constructed without a stroke effect and comprises a tubular bush, the outer surface of which is slidably mounted in the cradle tube. The respective tubular bushing has on the inside at least three groove-shaped recesses arranged uniformly distributed over the circumference, in which engage at least three strip-shaped projections of the waffle tube. Between the outer surface of the gun barrel or one of the ledge-shaped projections and positively connected to the gun barrel in nenringes and the inner surface of the barrel bushing and between the bar heads and the inner surface of the groove-shaped recesses of the barrel bushing, a predetermined game is provided such that the when the gun barrel is fired, the weapon barrel is within this game.

The previously known solutions have a large manufacturing cost and sometimes require a lot of space. In addition, changing the pipe system is very time-consuming.

Proceeding from this, the invention has for its object to provide a gun barrel storage that allows a reduction in the tube stroke movement and a gun barrel change sel not negatively affected.

This object is achieved by the weapon barrel storage of claim 1. Furthermore, this object is achieved by the barrel weapon of claim 10. Advantageous refinements and developments are the subject of the respective subclaims.

According to the invention, a weapon barrel support for a weapon barrel is provided, which comprises a cradle with at least one barrel support, preferably two barrel supports, for storing the weapon barrel and a base piece that can be connected to the weapon barrel. The cradle and the base piece are separably connected to one another by at least one guide which supports the base piece radially.

Furthermore, according to the invention, a barrel weapon is provided comprising at least one weapon barrel bearing of this type or as described below and at least one weapon barrel connected to the barrel. According to the invention, a weapon barrel holder is thus provided which has a cradle which is connected to the base piece via at least one guide. The bottom piece can again be connected to the weapon barrel. It is achieved that the weapon barrel is held in position by the base piece and the base piece can be positioned relative to the cradle via the guide. It is thereby achieved that, in particular in the area of the cargo space, the weapon barrel no longer lies on the cradle or a rear barrel support, but at least at the moment the shot is fired, there is play in relation to the barrel support. A significant reduction in the tube stroke movement is achieved, which is caused by the tube expansion. A support of the gun barrel and rear barrel storage is avoided according to the invention, in particular in the area of the cargo space, in which the gun barrel has a reduced wall thickness and consequently the barrel expansion is particularly large. Instead of leading the entire gun barrel on rails as in the previously known solutions, the gun barrel is preferably only guided until the projectile has left the returning gun barrel. Since the weapon barrel is mounted over the base piece in the barrel weapon according to the invention, the stroke movement of the barrel is also significantly less.

The configuration according to the invention also reduces the manufacturing outlay compared to the existing solutions. Furthermore, the space requirement is significantly reduced and a pipe change is not made difficult by guide rails and the like. In addition, the structure of the weapon barrel storage is not unnecessarily complicated.

Cradle and base are separated by the radially supporting guide a related party. This means that the cradle and base piece are movable with respect to one another, but are supported in a radial direction. The radial direction is a radial direction of the at least one barrel support, preferably the rear barrel support, and a radial direction of the weapon barrel.

In an advantageous further development it can be provided that the cradle and the base piece are movably connected in an axial direction by the at least one guide. This ensures that the returning mass can move axially relative to the cradle.

The axial direction is defined by the center line of the weapon barrel and / or the at least one barrel bearing (s).

In a further development it can be provided that the guide positions the cradle and the base piece in relation to one another in a radial direction of the at least one pipe bearing.

Characterized in that the cradle and base piece are positioned relative to each other, the base piece and a weapon barrel that can be connected to it are raised relative to the cradle and a rear barrel storage. Around the gun barrel is between the gun barrel and the rear Pipe storage formed an even game. The gun barrel can thus expand radially unimpeded when firing. The largest tube expansion occurs in the area of the loading area of the gun barrel, since here the internal pressure in the gun barrel is highest when the shot is fired and the wall thickness is reduced. The rear barrel support is preferably arranged in this area, so that there is a play between the rear barrel support and the barrel where the greatest expansion of the barrel has.

It can preferably be provided that the guide is attached to the cradle and is movable together with the cradle in the axial direction of the weapon barrel relative to the base piece. As a possible alternative to this, it can be provided that the guide is fastened to the base piece and, together with the base piece, is movable in the axial direction of the weapon barrel relative to the cradle.

In an embodiment, the weapon barrel storage can provide that the guide comprises two guide elements and two correspondingly shaped recesses for movably receiving one side of the guide elements in the cradle or in the base piece.

It can further be provided that the position of both guide elements can be adjusted in an up-down direction.

In a further development it can be provided that the position of a guide element can be adjusted in a right-left direction and the other folding element has play in the right-left direction in at least one of the recesses.

Furthermore, the weapon barrel mounting can provide that the guide has a guide piece arranged below the cradle for supporting the base piece. For this purpose, the guide piece is preferably adapted to the shape of the base piece.

In addition, the weapon barrel storage can provide in an embodiment that the cradle has a pressing device, in particular a spring-loaded cam, which prestresses the base piece with respect to the guide. This prevents accidental tilting of the base piece and weapon barrel relative to the cradle.

In a further development of the barrel weapon, it can be provided that the guide positions the base piece and the cradle radially to one another in such a way that radial play is formed between the weapon barrel and a rear barrel bearing.

Because the cradle and base piece are positioned relative to one another, the weapon tube is raised relative to the cradle and a rear tube bearing. Around the gun barrel, a uniform play is formed between the gun barrel and the rear barrel storage. The gun barrel can thus expand radially unimpeded when firing. The The greatest tube expansion occurs in the area of the cargo space of the gun barrel, since here the internal pressure in the gun barrel is highest when the shot is fired and the wall thickness is reduced. The rear barrel support is preferably arranged in this area, so that there is play between the rear barrel support and the barrel where the greatest expansion of the gun barrel is given.

In a further development of the barrel weapon, it can be provided that a radially supporting length of the guide is at least as large as the return path of a returning mass until a fired projectile leaves the barrel. The returning mass preferably comprises at least the weapon barrel and the base piece.

It is achieved that at least until the projectile has left the gun barrel there is play between the gun barrel and the rear barrel bearing, thereby avoiding a barrel stroke movement. It is possible that the guide is no longer in contact with the cradle and base piece for part of the return path. During a subsequent advance of the return mass, the guide is centered again by centering or aligning means in such a way that the return mass returns to its starting position. For example, a guide arranged on the cradle can be immersed in the base piece again. Likewise, a guide arranged on the base piece can plunge back into the cradle.

The invention will be explained by means of embodiments with reference to the drawings.

Show it:

Figure 1 is a schematic side view in section of a barrel weapon with a weapon barrel storage according to the invention according to an embodiment.

Fig. 2 is a schematic sectional view taken along section A-A of Fig. 1;

Fig. 3 is a schematic sectional view taken along section B-B of Fig. 1;

Figure 4 is a schematic side view in section of a barrel weapon with a weapon barrel storage according to the invention form according to another embodiment. and

5 shows a schematic sectional illustration along the section CC from FIG. 4. Fig. 1 shows a schematic side view in section of a barrel weapon with a weapon barrel holder according to the invention in accordance with one embodiment, the following disclosure relating to both the barrel weapon with weapon barrel holder and the weapon barrel barrel holder per se, without the barrel weapon. The weapon barrel storage has a cradle 2 and two tube supports 5, 6 for storing a weapon barrel 1. A front tube storage 5 is arranged in the front area of the cradle 2 and a rear tube storage 6 is arranged in a rear area of the cradle 2. Furthermore, the weapon barrel storage has a base piece 3 which can be connected to the weapon barrel 1. The cradle 2 and the base piece 3 are separably connected to one another by at least one guide 8.1, 8.2 which radially supports the base piece 3. Furthermore, the cradle 2 and the base piece 3 are movably connected in an axial direction A by the at least one guide 8.1, 8.2

The guide 8.1, 8.2 positioned in a radial direction of the rear barrel support 6, which can also be a radial direction of the weapon barrel 1, the cradle 2 and the base piece 3 radially to one another such that a radial clearance 10 is formed between the barrel 1 and a rear barrel bearing 6 .

The guide 8.1, 8.2 is designed such that it positions the cradle and the base piece 3 in relation to one another in a radial direction of the rear tube mounting 6, in particular in an up-down direction. The guide 8.1, 8.2 has at least two folding elements 15.1, 15.2 which engage in two recesses 16.1, 16.2. The part of the folding elements 15.1, 15.2 which engages in the recesses 16.1 and 16.2 forms a radially supporting length 9 of the guide 8.1, 8.2. The radially supporting length 9 of the guide 8.1, 8.2 is at least as large as the return path of a returning mass until a fired projectile leaves the weapon barrel 1. The returning mass comprises at least the weapon barrel 1 and the base piece 3.

The folding elements 15.1 and 15.2 are attached to the cradle 2. Recesses 14.1, 14.2 are formed in the cradle in which the folding elements 15.1, 15.2 are fixed. The folding elements 15.1, 15.2 are movable together with the cradle 2 in the axial direction of the weapon barrel 1 relative to the base piece 3. Flierzu the recesses 16.1, 16.2 in the Bo denstück 3 are formed.

FIG. 2 shows a schematic sectional illustration along the section AA from FIG. 1. The section AA runs through the cradle 2 in the area of the rear tube support 6. The rear tube support 6 is arranged within the cradle 2. A game 10 is formed between the weapon barrel 1 and the rear barrel bearing 6. Within the weapon barrel 1 along the section AA is a cargo space 7 of the lockable by a locking wedge 4 Gun barrel 1 trained. To fix the two holding elements 15.1, 15.2 two accordingly shaped recesses 14.1, 14.2 are formed in the cradle 2.

FIG. 3 shows a schematic sectional illustration along the section B-B from FIG. 1. The cut runs through the base piece 3 in the area of the guides 8.1, 8.2. As can be seen from FIG. 3, the weapon barrel 1 is fixed in the base piece 3. Recesses 16.1, 16.2 are formed within the base piece 3. The recesses 16.1, 16.2 are used to accommodate the movable elements 15.1, 15.2. The position of both holding elements 15.1, 15.2 can be adjusted in an up-down direction. The position of a holding element 15.2 is adjustable in a right-left direction and the other holding element 15.1 has a play 1 1 in the right-left direction in at least one of the recesses 16.1. The directions are indicated by corresponding direction arrows in the figures.

Fig. 4 shows a schematic side view in section of a weapon barrel holder according to the invention according to a further embodiment. The embodiment is based on the embodiment according to FIGS. 1 to 3, the differences between the embodiments being set out below. The guide 8.3 is designed in accordance with the embodiment shown in FIG. 4 as a guide piece 12 arranged below the cradle 2 for supporting the base piece 3. The guide piece 12 is formed along the axial length of the cradle 2. Furthermore, a pressing device 13 is formed, which has a spring-loaded cam which biases the base piece 3 with respect to the guide 8.1, 8.2, 8.3. The guide piece 12 and the pressing device 13 position the cradle 2 and the base piece 3 radially to one another in such a way that a radial play 10 is formed between the weapon barrel 1 and the rear barrel bearing 6.

The guide 8.3 is designed such that the base piece 3 together with the weapon barrel 1 is movable in the axial direction A relative to the cradle 2. The guide piece 12 forms a radially supporting length of the guide 8.3, which is at least as large as the return path 9 of the returning mass until a fired projectile leaves the weapon barrel 1.

FIG. 5 shows a schematic sectional illustration along the section CC from FIG. 4. The section runs through the base piece 3 in the region of the guide piece 12. As can be seen from FIG. 5, the weapon barrel 1 is fixed in the base piece 3. Within the bottom piece 3, recesses are formed a groove 17 which corresponds to the shape of the guide piece 12. The groove 17 serves to movably receive the guide piece 12. REFERENCE LIST

Gun barrel

Cradle

Bottom piece

Wedge

front pipe storage rear pipe storage

Cargo space

8.3 Leadership

radial support length radial play

Play in right-left direction

Guide piece

Pressing device

.2 cutouts

.2 guide elements

.2 recesses

Groove

Claims

PATENT CLAIMS

1. Gun barrel storage for a gun barrel (1), comprising

a cradle (2) with at least one tube bearing (5, 6) for storing the weapon barrel

(1 ),

a base piece (3) which can be connected to the weapon barrel (1),

characterized in that the cradle (2) and the base piece (3) are separably connected to one another by at least one guide (8.1, 8.2, 8.3) supporting the base piece (3) radially.

2. Gun barrel storage, according to claim 1, characterized in that the cradle (2) and the base piece (3) by the at least one guide (8.1, 8.2, 8.3) are movably connected in an axial direction (A).

3. weapon barrel storage, according to claim 1 or 2, characterized in that the Füh tion (8.1, 8.2, 8.3) in a radial direction of the at least one tube storage (5, 6) the cradle (2) and the bottom piece (3) positioned to each other.

4. Gun barrel storage, according to one of the preceding claims, characterized in that the guide (8.1, 8.2, 8.3) is attached to the cradle (2) and together with the cradle (2) in the axial direction (A) relative to the base piece (3 ) is movable or the guide (8.1, 8.2, 8.3) is fastened to the base piece (3) and, together with the base piece (3), is movable in the axial direction (A) relative to the cradle (2).

5. Gun barrel storage, according to one of the preceding claims, characterized in that the guide (8.1, 8.2, 8.3) two guide elements (15.1, 15.2) and two correspondingly shaped recesses (14.1, 14.2) for movably receiving one side of the guide elements (15.1 , 15.2) in the cradle (2) or in the base piece (3).

6. Gun barrel storage according to claim 5, characterized in that the position of both guide elements (15.1, 15.2) is adjustable in an up-down direction.

7. weapon barrel storage according to claim 6 or 7, characterized in that the position of a guide element (15.1, 15.2) is adjustable in a right-left direction and the other holding element (15.1, 15.2) a game (1 1) in right-left Direction in at least one of the recesses (14.1, 14.2).

8. Gun barrel storage according to one of the preceding claims, characterized in that the guide (8.3) has a guide piece (12) arranged below the cradle (2) for supporting the base piece (3).

9. Gun barrel storage according to one of the preceding claims, characterized in that the cradle (2) has a pressing device (13), in particular a spring-loaded cam, which biases the base piece (3) relative to the guide (8.1, 8.2, 8.3) .

10. Gun barrel comprising at least one gun barrel storage according to one of claims 1 to 9 and at least one gun barrel (1) connected to the base piece (3).

1 1. barrel weapon according to claim 10, characterized in that the guide (8.1, 8.2, 8.3) the bottom piece (3) and the cradle (2) positioned radially to one another such that a ra diales game (10) between the weapon barrel (1 ) and a rear pipe bearing (6) is formed.

12. Gun barrel according to claim 1 1 or 12, characterized in that a radially supporting length (9) of the guide (8.1, 8.2, 8.3) is at least as large as the return path of a returning mass until a fired projectile the weapon barrel ( 1) leaves.