Casting process of ship propeller
Marine propellers are usually composed of a hub and blades uniformly distributed along the circumference of the hub. The two are integrally formed by a casting process; and the middle of the hub is provided with a shaft hole and a keyway structure is machined. The shaft hole is connected with the drive shaft. Realize high-speed rotation. The surface of the current blade is smooth, and the stroke and driving performance depend on the curved surface of the blade and the torque transmitted by the drive shaft. The output torque of the drive shaft is limited by the performance of the motor and the entire propeller, and it is more difficult to improve;
The ship propeller is a mechanism that pushes the ship forward. It is an energy converter that converts natural force, manpower or mechanical energy into ship thrust. Ship propellers can be divided into active and reactive types according to the mode of action. Fibers and sails that rely on manpower or wind to drive the ship are active propellers, and those that rely on oars, sculls, paddle wheels, and propellers to drive the ship are reactive.
