DE3442110A1 - MACHINE CANNON - Google Patents

Description

The invention relates to a retractable barrel machine gun, in particular for armored vehicles, which are permanently installed on the vehicle side in a swivel part and via the front, vibration-damped weapon mounts on the Arms carrier is supported.

In the case of known machine guns with a returning barrel, the relative high recoil forces usually via the rigid weapon mount in the Weapon housing, the weapon carrier (swivel part), the mount or the turret and finally passed into the vehicle roof. Depending on the cadence the system consisting of the aforementioned parts is set in motion so that the hit result is naturally negatively influenced. Ever The lighter and more self-supporting the mount for the mount on the roof is, the less favorable this vibration behavior has on the hit position.

In a known machine gun (DE-GM 76 22 506) this disadvantage should are mitigated by the fact that the weapon bearings are fixed in the weapon carrier by means of pins and vibrating metals surrounding them. Because of your

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sleeve-like training, these vibration dampers act both in the Vorais also when returning the pipe. However, they require one-off production and very precise fitting in order to perform their function reasonably satisfactorily to be able to. They are also not sufficiently wear-resistant in continuous operation, so that the hit results suffer over time. They also bring relatively short spring travel of the rubber-metal bushings only for short bursts of fire a partial success in the hit pattern improvement.

The invention is based on the object of the machine gun mentioned at the beginning to be further developed in such a way that an improvement in the hit result is achieved and the hit result also over a longer period of operation is reproducible. Furthermore, the assembly and interchangeability of the weapon storage should be simplified.

This object is achieved according to the invention in that the front weapon storage are designed as linear slide bearings and that the sliding bearing part opposite the weapon carrier via vibration dampers, which run in both directions of the pipe are effective, is supported.

The inventive training receives the cannon compared to the generic state of the art by means of the plain bearings a perfect linear guide parallel to the pipe axis. This guidance is through the vibratory damper is not affected in any way. On the other hand, the vibration damping takes place directly at the weapons depot and thus as close as possible to the place of origin, by the vibration damper between the sliding bearing part and the weapon carrier are effective. The training according to the invention there is also the advantage over the known machine gun that the vibration damper for the forward and reverse movement in these Movement directions can be adapted to the forces to be increased so that optimal damping can be achieved in both running directions.

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According to one embodiment of the invention, the vibration dampers arranged between the sliding and the fixed bearing part of the plain bearings. The weapon storage and the vibration damper thus form a self-contained one Assembly that is used in the weapon carrier. Instead, it would of course also be possible to use the vibration damper on the one hand sliding bearing part, on the other hand, to be supported directly on the weapon carrier, so that the fixed bearing part can only assume leadership functions Has.

In a further embodiment of the invention, the plain bearings are designed as T-slot guides designed so that the weapon housing in two mutually perpendicular coordinates is flawlessly managed.

According to a preferred embodiment, the fixed bearing part in its Slideway has a recess into which a projection on the sliding bearing part protrudes, with an abutment on each side of the recess for one damping member is provided that is supported with its other end arr the approach. This training creates a very short and compact one Construction.

Although the abutments could in turn be provided on the weapon carrier, however, they are advantageously part of the fixed bearing part, so that the Vibration damping is integrated into the weapon storage.

It is useful if the abutment and / or the approach on the sliding Have bearing part pocket-like recordings for the attenuators. Means These pocket-like receptacles hold the attenuators in position and centered.

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As already indicated, the attenuators can be used for both running directions of the pipe have different damping characteristics in order to be able to take the different forces into account.

In the embodiment according to the invention, the fixed bearing part can have at least two spaced-apart pins, between which the abutments are located, be fastened in sockets on the weapon carrier, so that the weapon housing and the bearings are easy to assemble and, if necessary can also be exchanged.

The weapon housing enclosing the tube can, as is known per se, about Bolts on the sliding bearing part be pegged, with the addition of the weapon housing is fixed on the sliding bearing part via a tongue and groove connection, which runs axially parallel to the pipe axis. This is a perfect Centering and inclusion of the weapon housing guaranteed.

According to a further feature of the invention, a additional guide for the pipe to be provided in case of continuous fire To restrict uncontrolled pipe movements and a further calming down of the overall system.

The invention is described below with reference to an embodiment shown in the drawing.
In the drawing show:

Figure 1 shows a longitudinal section through the weapon carrier in the area of

front armory and

FIG. 2 shows a section II-II according to FIG. 1 on an enlarged scale.

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The weapon carrier is denoted by 1 in the drawing. He takes the front one Weapon storage 2, 3 for the weapon housing 18. Here are the two arsenals 2, 3 with respect to the weapon housing 18 arranged diametrically. The weapon housing 18 is via socket pins 4, 5, which the weapon carrier 1 with play reach through, connected to the front weapon stores 2, 3.

Both weapon bearings 2, 3 are designed as slide bearings and exist in each case from a fixed bearing part 6 and a sliding bearing part 7. Each fixed Bearing part 6 is in sockets 9 via two spaced hollow pins 8 fixed on weapon carrier 1. Closure covers 10 are placed on the hollow pin 8.

Each fixed bearing part 6 forms, as can be seen in particular from FIG Slideway 11 for the movable bearing part 7. Otherwise, the slide bearing designed as a T-slot guide. The sliding bearing part 7 has (Figure 2) a U-shaped cross-section, the web of the U-profile being the sliding surface has, while the legs are used to receive the socket pin 4.

The weapon housing 1 is also by means of a tongue and groove connection 12 on the sliding bearing part 7 centered.

As can be seen in more detail from Figure 1, the sliding bearing part 7 has an approximately radially outwardly extending projection 13 which reaches through a recess in the fixed bearing part 6. Both sides of the approach 13 are on the fixed bearing part 6 abutments 14, 15 in the form of pocket-like receptacles. Between the approach 13 and each of the two abutments 14, an attenuator 16 or 17 is used, which may also be added Centered by means of bolts or the like.

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The attenuators 16, 17 can, as can be seen from Figure 1, different be designed to take into account the different force ratios when advancing and retracting the cannon. In addition, the Attenuators can be of any construction, for example made of coil springs, Disc springs, vibrating metals, metal fabric cushions or the like. Consist .

Can on the weapon carrier or the pivoting part receiving the cannon an additional guide 19 (Fig.1) can be provided, which the movements of the pipe.

Claims (10)

Claims 1. Automatic cannon with a returning barrel, especially for armored vehicles Vehicles that are permanently installed in a swivel part and on the vehicle side is supported on the weapon carrier via front, vibration-damped weapon bearings, characterized in that the front weapon bearings (2, 3) are designed as linear slide bearings are and that the sliding bearing part (7) opposite the weapon carrier (1) via vibration dampers (16, 17), which in both directions of the Pipe are effective, is supported. 2. Machine gun according to claim 1, characterized in that the Vibration dampers (16, 17) are arranged between the sliding and the fixed bearing part (7 or 6) of the plain bearings (2, 3). 3. Machine gun according to claim 1 or 2, characterized in that the plain bearing (2, 3) is designed as a T-slot guide. - 2 · 7462/84-ly 4. Machine gun according to one of claims 1 to 3, characterized in that that the fixed bearing part (6) has a recess in its slideway (11) into which a projection (13) on the sliding bearing part (7) protrudes, and that on both sides of the recess a counter (14, 15) is provided for one damping element (16, 17) each, which is supported with its other end on the approach (13). 5. Machine gun according to one of claims 1 to 4, characterized in that that the abutments (14, 15) are part of the fixed bearing part (6). 6. Machine gun according to one of claims 1 to 5, characterized in that that the abutment (14, 15) and / or the extension (13) on the sliding bearing part (7) have pocket-like receptacles for the damping members (16, 17). 7. Machine gun according to one of claims 1 to 6, characterized in that that the attenuators (16, 17) for the two running directions of the pipe have different damping characteristics. 8. Machine gun according to one of claims 1 to 7, characterized in that that the fixed bearing part (6) has at least two spaced-apart pins (8) between which the Abutments (13, 14, 15) are located in sockets (9) on the weapon carrier (1). 9. Machine gun according to one of claims 1 to 8, characterized in that that the weapon housing (18) enclosing the tube is pegged by bolts (4) and (5) on the sliding bearing part (7). - 3 - 7462/84-Lj 10. Machine gun according to one of claims 1 to 9, characterized in that that an additional, movements of the Tube restricting guide (19) is arranged.