| 摘要 |
FIELD: mechanical engineering; materials handling facilities. ^ SUBSTANCE: proposed device contains flexible slings with hooks for catching tube edge hinge-connected to ends of slings by means of axles, slings being connected to hook of lifting machine. Fixed lever parallel to tube is secured to base of gripping hook, and movable level parallel to sling and connected by free end to said sling is connected to sling attachment axle. Said levers interact through locking mechanism placed in between. Base of movable lever is provided with bracket with screw on its end engaging in turn with projections on one of levers arranged at sides of each gripping hook and connected by common turning axle on surface of which pairs of guards disks are secured projecting beyond front edge of lever. Crossmember connects slings in lower third of their length and it is chosen to prevent bending of slings towards each other when gripping tubes to different length. ^ EFFECT: possibility of quick gripping of tubes of different length without readjustment, reduced mass of device. ^ 7 dwg |
