The invention provides a rotation locking device and a winch, which can prevent a shaft-shaped component from rotating due to accidental operation when the shaft-shaped component is rotated in a rolling direction. A retaining plate (140) provided in a rotation lock device (100) has a guide groove (145) that engages with a stopper protrusion (131) and retains a stopper member (130) at a predetermined position in the radial direction of a stopper support member (120), and a third restricting wall (145d1) is provided on the other side in the circumferential direction of the guide groove (145), the third restricting wall (145d1) engaging with the stopper member (130) at a position at which the stopper member (130) protrudes to the outer diameter side. When the stopper protrusion (131) engages with the third stopper wall (145d1), the stopper protrusion (131) is located at a position where the stopper member (130) and the stopper locking means (120) do not engage with each other, and when the stopper protrusion (131) engages with the third stopper wall (145d1), the stopper protrusion (131) is located at a position where the stopper member (130) and the stopper locking means (120) do not engage with each other.
本发明提供一种能够防止在轴状构件被向卷起方向旋转时,因意外地进行工作而导致轴状构件无法旋转的旋转锁定装置及卷扬机;旋转锁定装置(100)所具备的保持板(140)具有与限动突起(131)卡合并将限动构件(130)保持于限动件支承构件(120)的径向上规定位置的导槽(145),在导槽(145)的周向另一侧设有第三限制壁(145d1),该第三限制壁(145d1)通过在限动构件(130)向外径侧突出的位置与该限动构件(130)卡合,从而阻止保持板(140)相对于限动件支承构件(120)向与第一旋转方向相反的第二旋转方向相对地旋转,限动突起(131)向第三限制壁(145d1)卡合时,是位于限动构件(130)和限动件卡定手段(120)不卡定的部位。
Rotation locking device and winch
旋转锁定装置及卷扬机
2024-02-23
Patent
Elektronische Ressource
Chinesisch
IPC: | B66D Haspeln , CAPSTANS |