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< The structure of the black body fixed winch hoist is: frame, wire rope, pulley, drum, coupling
.
The frame of the winch hoist
is each The backing plates of components (such as bearing seats, motor seats, reducer seats, brake seats, etc.) should be processed, and the relative height error between each processed surface should not be greater than

. The allowable deviation of the wing plate and web plate after welding shall comply with the provisions of the appendix

. Post-weld stress relief treatment can use methods such as annealing and vibration aging. The selection and evaluation of vibration aging process parameters should comply with the regulations of

and

. The wire rope should comply with the relevant regulations of

. When the steel wire rope leaves the factory, is transported and stored, it should be rolled into a disk shape, the surface should be oiled, both ends should be tied tightly and labeled, indicating the order number and specifications. Unlabeled steel wire ropes should not be used. It is prohibited to extend the wire rope.