Vickers Tunnel Shield Machine Radial High-Pressure Pump Series and Models

Vickers pumps are core hydraulic components for tunnel shield machines, famous for their excellent radial pressure resistance, reliable sealing performance, strong anti-pollution capacity and stable operation under extreme underground working conditions (such as high humidity, dense dust, high ground pressure and long-term continuous operation). They are widely used in key hydraulic systems of shield machines, including propulsion mechanisms, segment erection mechanisms, grouting systems and auxiliary cutterhead drive systems. The following are the main series and typical models of Vickers radial high-pressure pumps specially adapted for tunnel shield machines, covering single and combined radial pumps to meet the high-pressure and high-stability requirements of different shield machine working mechanisms.

1. Core Radial High-Pressure Pump Series (Suitable for Main Hydraulic Systems of Shield Machines)

This series is developed for the core working mechanisms of shield machines that require high radial pressure and stable flow output, such as propulsion and grouting. It adopts advanced radial pump structure design, with strong pressure-bearing capacity, low energy consumption and long service life, which can effectively adapt to the harsh underground construction environment of tunnel shield machines.

1.1 PVH Series (Heavy-Duty Radial High-Pressure Pump)

As a high-performance heavy-duty radial high-pressure pump, this series integrates the advantages of compact structure, high volumetric efficiency and strong anti-pollution ability, and is specially optimized for the high-pressure demand of shield machine propulsion mechanisms. It can withstand long-term continuous operation under ultra-high radial pressure, and its sealing system is specially designed to prevent the intrusion of underground moisture and dust, ensuring the stable operation of the shield machine propulsion system.

Typical Models:

• PVH57 Series: PVH57QIC-RSF-1S-10-C25-31 (max radial pressure 420 bar, displacement adjustable, suitable for medium-sized shield machine propulsion mechanisms), PVH57QIC-RSF-1S-10-C30-31
• PVH63 Series: PVH63QIC-RSF-1S-10-C25-31 (continuous radial pressure 380 bar, strong adaptability, suitable for large shield machine main propulsion circuits), PVH63QIC-RSF-1S-10-C40-31
• PVH131 Series: PVH131QIC-RSF-1S-10-C25-31 (large displacement, high radial pressure resistance, suitable for super-large shield machine propulsion and cutterhead auxiliary drive systems)

1.2 VR Series (Special Radial High-Pressure Pump for Shield Machines)

This series is a special radial high-pressure pump developed by Vickers for tunnel shield machines, with a professional radial flow structure design that perfectly matches the force characteristics of shield machine hydraulic systems. It has the advantages of low noise, small vibration and easy maintenance, and is mainly used in shield machine segment erection mechanisms and grouting systems, which can provide stable high-pressure hydraulic power for precise operation of the mechanisms.

Typical Models:

• VR25 Series: VR25-1R15R-1A20 (max radial pressure 350 bar, small size, suitable for shield machine segment erection auxiliary mechanisms), VR25-1S20S-1A20
• VR35 Series: VR35-1R30R-1A20 (medium displacement, stable output, suitable for shield machine grouting systems, can adapt to high-pressure grouting requirements), VR35-1S35S-1A20
• VR45 Series: VR45-1R40R-1A20 (high radial pressure resistance, continuous pressure 320 bar, suitable for large shield machine high-pressure grouting and segment clamping mechanisms)

1.3 PVB Series (Radial-Axial Combined High-Pressure Pump)

This series adopts a radial-axial combined structure design, which combines the high pressure resistance of radial pumps and the high efficiency of axial pumps, and is suitable for shield machine hydraulic systems that require both high radial pressure and large flow, such as cutterhead drive auxiliary systems and emergency propulsion circuits. It has strong impact resistance and can adapt to the pressure fluctuation during shield machine tunneling.

Typical Models:

• PVB20 Series: PVB20-F-MRSFXN-10-CM-CVP-C-G-L-11-GE1 (radial pressure up to 380 bar, suitable for shield machine cutterhead auxiliary drive systems), PVB20-F-MRSFXN-10-CM-CVP-C-G-L-11-GE2
• PVB45 Series: PVB45RSY20CM12 (large displacement, radial pressure resistance 350 bar, suitable for shield machine emergency propulsion and multi-functional auxiliary circuits)

2. Combined Radial High-Pressure Pump Series (Suitable for Multi-Mechanism Hydraulic Systems of Shield Machines)

This series integrates two or three radial high-pressure pumps into one, with a compact structure and space-saving design, which can provide independent and stable high-pressure oil supply for multiple hydraulic mechanisms of shield machines (such as propulsion + grouting + segment erection) at the same time. It reduces the number of pump installations, improves the integration of the shield machine hydraulic system, and simplifies the maintenance process.

2.1 PVH-VR Combined Double Radial Pumps

Combined by PVH series heavy-duty radial pumps and VR series special radial pumps, it has flexible combination performance and stable operation, which is suitable for large shield machines with multi-mechanism coordinated operation requirements, and can meet the different high-pressure needs of the main propulsion mechanism and auxiliary mechanisms at the same time.

Typical Models:

• PVH63-VR35 Series: PVH63QIC-VR35-1R30R-1A20 (PVH63 for main propulsion, VR35 for grouting system, suitable for medium and large shield machines)
• PVH57-VR25 Series: PVH57QIC-VR25-1R15R-1A20 (compact structure, suitable for small and medium shield machines with limited installation space)

2.2 PVB-VR Combined Double/Triple Radial Pumps

Combined by PVB series radial-axial combined pumps and VR series special radial pumps, it is suitable for super-large shield machines that require high pressure, large flow and multi-mechanism precise coordination. It has high reliability and strong load-bearing capacity, and can adapt to the complex and changeable working conditions during shield machine tunneling.

Typical Models:

• PVB20-VR35 Double Pump: PVB20-F-MRSFXN-10-CM-CVP-C-G-L-11-GE1-VR35-1R30R-1A20
• PVB45-VR35-VR25 Triple Pump: PVB45RSY20CM12-VR35-1R30R-1A20-VR25-1R15R-1A20 (for super-large shield machines with multiple auxiliary mechanisms)

Note: All models listed above are specially adapted for tunnel shield machine hydraulic systems. The specific model selection should be determined according to the type of shield machine, tunneling diameter, working pressure, flow requirements and underground operating environment. For more detailed parameters (such as displacement range, maximum speed, control mode and sealing performance), please refer to the official technical manual of Vickers. It is recommended to select models with strong radial pressure resistance, excellent sealing performance and anti-pollution ability to adapt to the harsh underground working conditions of tunnel shield machines, and regular maintenance should be carried out to ensure long-term stable operation.