| 摘要 |
The shaft (3, 7) enlargements (15, 16) are connected by a splined-on main coupling bush (14), with screw-on end bushes (20), completing rotary and longitudinal locking. In novel design, the main bush (14) external thread (19') and the mating internal thread (21') of its end coupling bush (20') are interrupted over equal circumferential angles (alpha ), by recesses, which alternate with the threaded sections. Each recess extends radially toward the axis (12), to below the thread root (28). The angle (alpha ) is 90[deg]. The end coupling bushes (20, 21) are locked against rotation by a security ring (33). Between each of these and the bushes, an anti-rotation coupling is formed by a recess and locking projection engaging it. The security ring is pressed by a compression spring (34) against the coupling bushes. The security ring is held against rotation relative to the main coupling bush (14), when in the locked position. In the unlocked position, raised from the bushes, the security ring is fixed against longitudinal movement. A security peg (37) of the main coupling bush engages an angled groove in the security ring. |
