| 摘要 |
<p>A strap coiling and releasing device for a winch comprises a rotatable strap reel (2) provided on the frame (1) of the winch with one of its ends protruding from the frame, and comprises a casing (3) securely connected to a side of the frame (1). A worm (4), a worm shaft (4b) and a worm wheel (5) are mounted in the casing (3). The worm wheel (5) is securely connected to the protruding end of the strap reel (2). The worm shaft (4b) is provided on a side of the worm wheel (5) and can move in its axial direction in the casing. Said worm (4) is arranged around the worm shaft (4b) and is securely connected to the same. A guide mechanism, which can make the worm shaft (4b) move in its axial direction when the worm shaft (4b) rotates, is mounted between the casing (3) and the worm (4) or worm shaft (4b). When the worm meshes with the worm wheel, the worm shaft (4b) or worm (4) will disengage from the guide mechanism.</p> |
