Drum winches

Drum winch

— any winch is a device for moving goods, working by rotating the drum, on which the cable is wound (less often, the belt). The use of a cable / belt is the most noticeable difference between such devices and hoists (where a chain is used). Another, less noticeable, but more fundamental point is that the rotation on the winch drum is often transmitted directly from the lever or engine, without additional mechanisms. However, drum models are an exception to this rule.

Drum winches work from the muscular strength of the user, who must rotate a special lever. This lever drives a small gear, which in turn is connected to a large gear on the drum itself. Such a design, by reducing the speed, increases the pulling force of the drum — that is, in fact, it is a simple gearbox.

Winches of this type can be used for both vertical and horizontal movement of goods, however, for technical reasons, they are rarely equipped with blocks and are generally inferior in terms of load capacity to lever models. In addition, drum devices are most often designed for permanent fastening — to a wall, floor, ceiling, etc. That is why they are noticeably less common than lever ones.