When the rated tension of the drawworks is greater than 125KN, a rope guide shall be set. At least 3~5 turns of wire rope shall be reserved on the drum, and the end of wire rope shall be fixed reliably. The distance from the outer side of the drum to the outermost steel wire rope shall not be less than 1.5 times of the diameter of the steel wire rope. During operation, no one shall cross the winch steel wire rope under operation.

Winch, a small and light lifting equipment that uses a drum to wind steel wire rope or chain to lift or pull heavy objects, is also called a winch. The winch can lift the heavy object vertically, horizontally or obliquely. Winches are divided into manual winch, electric winch and hydraulic winch. Mainly electric winch. It can be used alone or as a component of hoisting, road building, mine hoisting and other machinery. It is widely used because of its simple operation, large amount of rope winding and convenient displacement. It is mainly used for lifting or hauling materials in buildings, water conservancy projects, forestry, mines, docks, etc.