Ship unloader

Slewing bearing of the ship unloader usually adopts a three-row roller structure with external gear and a diameter of about 4 meters.

The slewing structure of the ship unloader consists of two parts: a slew support device and a slew drive device. It uses the slew bearing to transmit vertical force, horizontal force and overturning moment and realize the rotation of the ship unloader. Its performance indicators directly determine the use and use of the loading and unloading machinery. Safety performance. When a shutdown failure occurs, the superstructure of thousands of tons usually needs to be lifted to a certain height to repair or replace the large slewing bearing. The repair time is long, the cost is high, the indirect loss of the shutdown is large, and even safety accidents may occur.

Slewing bearing is a new machine component that has gradually developed with the development of the machinery industry in the world in the past 50 years. It has been used in tower cranes, truck cranes, and excavators, and has gradually extended to transportation machinery and metallurgical machinery. , food processing machinery, military equipment, tanks, anti-aircraft guns, radars, rocket launch pads, medical machinery, ladders, windmills, robots, rotating entertainment facilities and other fields.