A crane, a lifting frame for a crane, and a method of lifting a component

摘要: A lifting frame (18) for a crane (10) comprises wheeled gantry (20) which is arranged to move in first direction on tracks (32) the and carriage (22) perpendicular (38) (20). The attached component (16) by attachment means (26) point (23) hook (14) shackle (24). force transducer (52) measures tension (24), accelerometers (58, 60) detect tilting of (18). processor (56) calculates position centre gravity combined from measured values automatically positions above maintain horizontal when it lifted ground. may be used with cranes or goliath cranes.