windlass

In addition to the different power parts of all kinds of windlass, its functional parts are basically the same, that is, they all include sprockets, winch rollers, clutches and brakes. These functions are arranged on the same power-driven spindle. The winch drum (auxiliary drum) at the end of the spindle generally rotates with the spindle, and the sprocket is controlled by an independent clutch and brake. When the clutch is closed, the sprocket and the main shaft are snapped together, and can be turned with the main shaft, so that the anchor chain can be twisted in or out. When the clutch is off, the sprocket does not rotate with the main shaft, and can be anchored or twisted. The brake is used to brake the anchor chain or control the speed of the loose chain. When the brake is tight, the sprocket is fastened to the body of the windlass and cannot be turned. Ships can generally be equipped with a double sprocket windlass. For large ships or ships with large bulbous heads, because of the large distance between the left and right hawse tubes, two single-chain wheel windsors (or single-side windsors) separated from each other are set up.

Windlass is divided into horizontal windlass and vertical windlass according to the arrangement. Horizontal windlass is widely used in modern transport ships, and its main shaft is horizontally arranged. In order to tie and untie the cable operation and adjust the force of the cable, modern ships often adopt a combination of anchor and mooring machine, which combines the anchor machine and mooring winch into one. In addition to the auxiliary reel at the spindle end, there is also a mooring winch (main reel) on the windlass spindle, which, like the sprocket, is driven by the spindle and controlled by an independent clutch and brake. Hold the clutch together to twist or loosen the cable. After the cable is twisted, the brake is tightened to maintain the force on the cable without moving it to the bollard.