There are several common ways to install the propeller's shaft nowadays.
The use of epoxy plastic adhesives in shipbuilding is becoming more and more widespread. This is a reform of the turbine installation process. It is higher quality, safer, easier and faster to install than the traditional installation process. In order to make this new process more widely known and accepted.
The keyless hydraulic installation of propellers is a new process.
Most of the large ships in the world use hydraulic keyless coupling to fix the relative position of the propeller and the propeller shaft. The hydraulic keyless coupling is to form an interference fit between the propeller shaft and the propeller shaft within the elastic range of the material by the action of high-pressure oil, which generates a huge contact friction force with the interference fit so that the propeller and the shaft can be reliably connected together to achieve the function of transmitting the torque from the main engine. The hydraulic keyless coupling of the propeller not only has good assembly quality and reliability but also is easy to disassemble and assemble, which provides a strong guarantee for the navigation performance of the ship and the safety of cargo and personnel on board.
At present, almost all new ships at home and abroad adopt this method. In addition to the high efficiency of disassembling and assembling, another unique advantage of the keyless propeller hydraulic installation is that when the ship's main engine is a diesel engine, the propeller blades can be accurately adjusted to any desired position relative to the crank angle to reduce shaft vibration.
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