Gearless elevator dragging machine and climbing mechanism thereof

The utility model discloses an elevator dragging machine, in particular to a dragging and braking mechanism of an elevator moving vertically and a climbing mechanism for resolving the difficulties, which is a gearless elevator dragging machine and a climbing mechanism thereof. According to the principle that a dovetail groove friction pair can enlarge the frictional force, a brake is combined with a climbing mechanism which comprises a worm gear and a worm, so large space is saved, and sufficient braking power and climbing power is provided. The worm of the utility model can be detached and positioned in other place at ordinary time; when difficulties need to be resolved, the worm is installed again on a dragging machine. The gear teeth of the utility model is not convex, so the gear teeth can not injure an operator, and the safety performance of the dragging machine is guaranteed.