摘要:
A weapon for firing practice ammunition includes a barrel having a frontal length portion terminating in a muzzle; an ammunition loading chamber at a barrel end opposite the muzzle; and a plurality of first gas outlet bores provided in the frontal length portion. The first gas outlet bores are arranged in a plurality of circumferentially spaced axial rows. There is further provided a muzzle brake sleeve coaxially surrounding the frontal length portion and having a frontal end situated close to the muzzle. The muzzle brake sleeve includes a plurality of second gas outlet bores arranged in a plurality of circumferentially spaced axial rows. The first gas outlet bores are staggered with respect to the second gas outlet bores as viewed along the barrel. The frontal end of the muzzle brake sleeve is closed off by a plug.
摘要:
A method of closing the forward portion or region (u) of a cylindrical sleeve body (3) of a practice cartridge (1), wherein a predetermined number of inside and outside radial folds (8, 7, respectively) are created in the forward region (4) of the sleeve body (3) in two work cycles, and wherein circular arc-shaped inside folds (8) of predetermined depth are created during the first work cycle by the application of radial pressure using correspondingly shaped profiling tools. To achieve secure closing of the sleeve body (3) through folding in a simple and cost-effective manner and without predetermined fracture points resulting in the region of the inside folds (8) during closing, the inside folds (8) are created in the forward region of the projectile body (3) during the first work cycle so that a first, central opening having a diameter of at least 2 mm remains between the inside folds (8) after completion of this work cycle. Due to this first step, tools that have a relatively large bending radius can be used for creating the inside folds, despite the high number of folds. In the subsequent second work cycle, a further radial pressing together of the inside folds (8) is effected by exerting pressure on the outside folds (7), e.g. by using a conical die.
摘要:
A fuze mechanism (1) for projectiles, rockets, bomblets and mines which is of the type including a fuze housing (2) and a self-destruct device containing a pyrotechnic delay arrangement (10) and a firing pin (11), with the fuze housing (2) having a side opening (5) for a transversely movable detonator carrier (4) which can be moved out beyond the outer housing contour into the armed position and which contains the pyrotechnic delay arrangement (10) and a fuze detonator (7). To manufacture fuze mechanisms (1) which are simple and free of spin and whose self-destruct devices are additionally provided with a delay time that is as long as possible, the firing pin (11) for the self-destruct mechanism is pivotably fastened to the fuze housing (2) in the region of the side opening (5). Moreover, the detonator carrier (4), on its side facing the opening (5), is provided with a carrier member (12) which is in force-locking contact with the firing pin (11) and which, when the detonator carrier (4) is moved out, pivots the firing pin (11) toward the delay arrangement (10) so that the same is ignited.
摘要:
The present invention relates to a method of disassembling large-caliber combat cartridges, particularly armor-piercing cartridges, including a combustible casing jacket that conically widens in the direction of the projectile, a casing bottom and a casing cover to which is fastened a sub-caliber projectile equipped with a propelling sabot.To be able, on the one hand, to reduce expenditures for the disassembly of such combat cartridges and, on the other hand, to reuse a major portion of the original combat cartridges for the production of corresponding training cartridges, it is proposed to separate the casing jacket as well as the casing cover starting at their outer circumference, in regions having approximately the same, predetermined diameter D1. This diameter D1 here corresponds to the maximum diameter of the component of the new cartridge to be produced later from the disassembled components. The portion of the casing jacket and of the casing cover disposed between the regions is discarded and is replaced in the production of the new cartridge by a cylindrical casing jacket component having the diameter D1.
摘要:
A modular propellant charge (10) composed of N propellant charge modules (1; 11-16) each having a length Lo. In order to obtain an economical, durable, easily released connection between the propellant charge modules (1; 11-16), a displaceable sleeve (6; 17-22) of a length L is axially slidably arranged on the exterior of each propellant charge module (1; 11-16) with the relationship ##EQU1## applying for the length L. The displaceable sleeves are utilized to interconnect adjacent modules.
摘要:
A device for transferring ammunition from a magazine to a transfer arm of an adjustable weapon rotatable about a trunnion. The transfer arm is movable together with the weapon and tilts up to a maximum predetermined angle (.beta.') during azimuth adjustment of the weapon. Two angle compensating elements are rotatable relative to one another about a common axis in planes that are inclined by half the predetermined angle (.beta.'/2) and are operatively disposed adjacent the magazine. A planar turntable is rotatably mounted on the two angle compensating elements for rotation relative thereto about the common axis. The plane of the planar turntable is adjusted by the two angle compensating elements. An ammunition receiving and pivoting device is supported on the turntable for receiving ammunition from the magazine and pivoting the ammunition so that the ammunition can be received by the transfer arm of the weapon.
摘要:
In order to improve the cooling of one sided circuit boards for electronic power circuits in SMD configuration, the surface (14) of the circuit board (10) which is not provided with circuit components is part of the interior wall of a housing (26) through which flows a liquid coolant and which is equipped with inlet and outlet pipe connections (28, 30) for conduits through which flows a coolant. In order to remove heat, the side (14) of the circuit board (10) which is not provided with the circuit components can be directly wetted with coolant.
摘要:
A device is provided for reducing the rate of rotation of a spinning submunition unit having a tail end provided with a deployable braking device, from a time after the submunition unit is ejected from a spin stabilized carrier projectile until the braking device is deployed. The device includes a plurality of bands arranged to form a star-shaped symmetrical band structure for placement around the braking device. Each of the bands has a free end provided with a wind pocket.
摘要:
A deceleration device for a submunition unit includes a cartridge releasably attached to the submunition unit. A releasable package including at least one pocket is disposed in the cartridge and is connected to the cartridge by a packaging line. An auxiliary parachute and a rotation parachute are disposed in the cartridge, with at least the rotation parachute being accommodated in the at least one pocket of the releasable package and the auxiliary parachute being disposed in a pocket separate from the at least one pocket. The auxiliary parachute is connected to the cartridge and the rotation parachute is connected to the submunition unit. A deployment mechanism causes the auxiliary parachute to be deployed in advance of the rotation parachute after the cartridge is released from the submunition unit and the rotation parachute to be deployed after the cartridge is decelerated by the auxiliary parachute for decelerating the submunition unit.
摘要:
A submunition unit for a spin stabilized carrier projectile (1), with the submunition unit including an antenna disposed at the nose of its casing (7), and with the antenna (5) being covered by a protective cover (6). The casing (7) and the protective cover (6) are provided with respective axially overlapping collars (8, 9) which are each provided with respective opposed circumferential grooves (14, 15) to form an annular recess to accommodate an elastic securing ring (16). The securing ring, which is normally positioned within the innermost of the circumferential grooves, expands under the influence of centrifugal forces to connect the casing and protective cover together in a form-locking manner.