Breech mechanism for a gun barrel, sliding in a cradle with a recuperating cylinder, has a hydraulic drive on the cradle with a coupling to the breech drive shaft to open it for reloading at any barrel angle

摘要

The cannon has a gun barrel (1) which slides axially in the cradle (2) with at least one connected recuperating cylinder (4). The breech (7) swings on a lateral axis (9), with a breech drive shaft (10) coaxial to the axis. A hydraulic drive (13) for the breech drive shaft is mounted on the cradle, with a coupling (14). A coupling section (26) at the breech drive shaft gives disengagement from the drive coupling shaft. The hydraulic drive has a rack (17) at a setting cylinder (15), working with a pinion (22) on the breech drive shaft through at least one intermediate cogwheel (20).