Hydraulically controlled cardan joint - has forks connected rigidly to axle stubs of corresponding hydraulic rotary cylinders

摘要

The cardan joint has the swinging motions of the two perpendicular cardan forks controlled by hydraulic rotary cylinders. It consists of three forks (2,3,1) and two rotary cylinders (4,5). The housing of the cylinder (4) is rigidly connected with the ends of fork (1) and the cylinder is connected to hydraulic supply by extending nipple connections (6,7). The axle stub (16) of the cylinder (4) is rigidly connected to the ends of fork (2) the base of which carries a hydraulic rotary cylinder (5). The axle stub (17) is rigidly connected to the fork (3). Axles of both cylinders have a rotational angle of 180 degrees. Cylinder (5) receives hydraulic fluid via connection (8,9).