| 摘要 |
The coupling device consists of a primary mechanical assembly (1), which is suspended from the hook (8), of the lifting machine, by the ring (4), which is rigidly fixed to the horizontal strap (5). Vertical rods (6) extend downwards parallel to the lifting axis (Z-Z1) and carry lifting stops (7) at the lower ends. A second assembly (2) consists of two jacks (17 and 26), which operate via the rods (14 and 28), with pistons (15 and 27), to transmit motion to the third assembly (3). This forms a chuck body (33), which controls the movement of the spring operated body (33), which controls the movement of the spring operated jaws (36), which are used to grip the body (9) to be lifted. USE/ADVANTAGE - It provides automatic and remote attachment and release for a load to be lifted.
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