| 摘要 |
A parallel-kinematical machine (20) that includes three setting devices (24.1, 24.2, 24.3) each of which can be lengthened and shortened individually, wherein each setting device (24.1, 24.2, 24.3) is connected to a first, a second and a third respective inner gimbal ring (23.1, 23.2, 23.3) of universal gimbal joints (UGJ) and that each inner gimbal ring (23.1, 23.2, 23.3) is mounted in bearings (25, 26, 27) for rotation in gimbal holders (21, 22) which are rotationally mounted in outer gimbal bearings (28, 29, 39) in an outer mounting (290) wherein the first inner gimbal ring (23.1) and the third inner gimbal ring (23.3) are mounted for rotation in a common outer gimbal holder (21) which is mounted for rotation about a common gimbal axis (32, 52) and in that the second inner gimbal ring (23.2) is mounted for rotation in a single gimbal holder (22) which is mounted in two opposite bearings for rotation about a second gimbal axis (31, 51) which is not aligned with said common gimbal axis (32, 52). |
