Central Rotary Sleeve for Shield Machine

The Central Rotary Sleeve for Shield Machine is an important part of the shield machine, usually installed between the front and back parts of the shield machine, playing a connecting and supporting role. It can realize the rotation of the shield machine, ensure the reliability of the shield machine, and can be used for a variety of media to meet the use requirements of the shield machine under different construction needs. It overcomes the lubrication problem of non-oily media during sealing and prolongs the sealing life.

1.The Central Rotary Sleeve for Shield Machine is hollow, providing space for internal systems and protecting components. The outer - wall grooves hold sealing components, and the flanges are for positioning and connection to ensure stable cooperation.
2.The Central Rotary Sleeve for Shield Machine is commonly made of high - strength, corrosion - resistant alloy steel, such as Q345R and 316L stainless steel, which adapt to working conditions with their strength - toughness and corrosion resistance respectively.
3.The Central Rotary Sleeve for Shield Machine is equipped with a combination of lip - type and mechanical seals to block mud and water with near - zero leakage. An internal lubrication channel delivers oil to reduce friction and ensure stable operation.
4.As it participates in high - speed rotation, the central rotating sleeve of the shield machine has high dynamic - balance requirements. Professional processes strictly control the unbalance to ensure smooth operation and reduce noise and impact.

During shield machine tunneling, the central rotating sleeve plays a vital role. Its hollow structure protects the power transmission and lubrication systems from muck and mud. The outer - wall grooves and flanges precisely connect the shell and support structures, facilitating the machine's coordination. Multiple high - performance sealing devices block impurities, and the grease lubrication channel delivers grease to reduce friction and wear, ensuring long - distance, high - intensity operations of the shield machine.