Central Rotating Shaft for Shield Machine

The Central Rotating Shaft for Shield Machine is crucial, located at the center of the soil chamber partition and main drive, serving as the sole passage for modified fluid transfer. It's generally divided into two parts. The front part connects to the cutterhead, while the rear part is flange - connected to the front. Fluid holes on the shaft, along with the outer shell's annular grooves and seals, ensure the holes communicate during rotation, enabling stable fluid delivery to the cutterhead front.

1.The Central Rotating Shaft for Shield Machine is made of high-strength materials and advanced technology to ensure its high load-bearing capacity and wear resistance. In addition, the design of the center rotary shaft also takes into account a variety of sealing structures, such as lip seals, to ensure reliable operation under high pressure and harsh environments.
2.The Central Rotating Shaft for Shield Machine is designed with a fluid hole, which connects the axial pipeline inside the central shaft with the radial hole of the outer shell, constructs a fluid transmission path, and ensures the smooth flow of lubricating fluids. The radial hole of the outer shell is connected to the fixed part of the pipeline to open up the fluid transmission link and ensure continuous and stable supply.
3.An annular groove is opened on the inner surface of the shell corresponding to the radial hole to provide an installation position for the seal. Rubber sealing rings, mechanical sealing components, etc. are embedded to effectively prevent fluid leakage. The central axis and the shell hole are connected to each other to maintain smooth fluid transportation.

During shield machine tunneling, the Central Rotating Shaft for Shield Machine is essential. Its structure aids cutterhead cutting, and fluid holes on the shaft deliver lubricant, coolant, and mud to reduce wear, cool the cutterhead, and improve soil. In the sealing mechanism, annular grooves and sealing components cooperate to prevent leakage and keep the interior clean, ensuring the shield machine steadily advances tunnel construction.