Specification requirements for the production of anchor winches

Specification requirements for the production of anchor winches
The electric motor decelerates through two stages of worm gear and gear, driving the winch shaft to rotate. A pair of sprockets are looped on the winch shaft and a pair of toothed clutches are installed with sliding keys. The handle can slide the clutch axially, allowing it to be embedded or separated from the sprocket. When the ship's anchor windlass is lifted, the clutch is embedded with the sprocket, and the belt brake mechanism is relaxed. The winch shaft can drive the sprocket to rotate; When anchoring, separate the clutch and sprocket, loosen the band brake mechanism, and then use the self weight of the anchor to release. Release the clutch and use the brake band to brake the sprocket. The winch shaft only drives the winch drum to rotate, which can be used for twisting the cable. The sprocket shaft of the electric windlass is installed perpendicular to the deck, and the motor and reducer can be arranged below the deck. This ship's anchor winch not only reduces the floor area but also helps to protect the motor.

Marine anchor winches are machinery for pulling and anchoring, and there are several regulatory requirements for anchor winches:
1. The ship's anchor windlass should have an independent primary power drive.
2. The additional pulling force of the ship's anchor winch should not be less than 41.68d2N (4.25d2kgf), and when d<25mm, the additional pulling force should not be less than 36.8d2N (3.75d2dgf), where d is the chain diameter in millimeters. The average speed of anchoring when using additional tension should not be less than 9m/min.
3. The marine anchor winch should be able to operate continuously for 30 minutes under additional pulling force and speed, and should be able to operate continuously for 2 minutes under an overload pulling force effect of not less than 1.5 times the additional pulling force; In addition, the windlass should also be equipped with an overload protection device, which can turn to medium speed operation when overloaded.
4. The braking device on the chain wheel of the ship's anchor windlass should operate reliably and be able to brake 45% of the breaking load of the anchor chain (when the free anchoring speed reaches 5-7.5m/s, there can still be a brake on the sliding anchor chain); There should be a clutch between the sprocket of the windlass and the load shaft; The brake and clutch should be easy and reliable to operate; The windlass should be able to rotate clockwise and counterclockwise during operation, and should be stable and agile.
5. The marine windlass device should ensure that the three eyes (anchor chain barrel, chain stopper, and sprocket) are aligned when the anchor chain is pulled out.