Weighing structure for hoisting mechanism of crane

A weighing structure for a hoisting mechanism of a crane comprises a loading frame and a main beam structure, two symmetrical weighing sensors are arranged between the loading frame and the main beam structure, specifically, the bottoms of the weighing sensors are fixed to the main beam structure, a positioning plate is fixed to the tops of the weighing sensors, the positioning plate is fixed to the outer spherical surface of a knuckle bearing, and the knuckle bearing is fixed to the outer spherical surface of the knuckle bearing. A connecting plate is fixed on the inner spherical surface of the knuckle bearing, the connecting plate is fixed on the loading frame, a vertical hole is formed in the loading frame, an anti-falling column is fixed on the main beam structure, the anti-falling column penetrates through the vertical hole, and the anti-falling column is in clearance fit with the vertical hole. The knuckle bearing is a self-lubricating knuckle bearing. Compared with the prior art, the utility model has