A2FM45/61W-VPB010 Hydraulic Piston Pump
Basic Information
• Model: A2FM45/61W-VPB010
• Type: Axial Piston Variable Displacement Pump with Tilting Plunger
Working Principle
A piston pump, a type of reciprocating pump and volumetric pump, operates with its plungers driven by the eccentric rotation of the pump shaft to perform reciprocating motion. Both its suction and discharge valves are check valves. The specific working process is as follows:
• Plunger Withdrawal: The pressure in the working chamber decreases, closing the discharge valve. When the pressure is lower than the inlet, the inlet valve opens, allowing liquid to enter.
• Plunger Advancement: The pressure in the working chamber increases, closing the inlet valve. When the pressure is higher than the outlet, the discharge valve opens, allowing liquid to be discharged.
Axial piston pumps with sliding shoe structures are currently widely used. In this structure, the plungers placed in the cylinder block are in contact with the swashplate through sliding shoes. When the drive shaft rotates the cylinder block, the swashplate pulls or pushes the plungers in and out of the cylinder block, completing the suction and discharge process.
Structural Characteristics
• Variable Displacement Mechanism: Used to change the inclination angle of the swashplate, thereby adjusting the pump's displacement by regulating the angle.
• Plungers and Cylinder Bore: Form working chambers where oil communicates with the pump's suction and discharge chambers through the valve plate.
• Material: Made of durable materials such as cast iron.
Application Areas
Hydraulic piston pumps, including the A2FM45/61W-VPB010 model, are primarily used in injection molding machines, ships, cranes, engineering machinery, construction machinery, coal mining machinery, mining machinery, metallurgical machinery, petrochemicals, port machinery, and many other fields.
Performance Characteristics
• Advantages:
• Compact structure, small size, and light weight.
• Excellent power-to-weight ratio.
• Economical design with relatively low costs.
• High initial and overall efficiency.
• Suitable for compact installation applications.
• Disadvantages(general disadvantages of piston pumps, may not fully apply to the A2FM45/61W-VPB010 model):
• Larger torque pulsations.
• Lower efficiency compared to some other types of pumps.
• Smaller starting torque (only 60%~70% of rated torque).
• Poor low-speed stability.
Precautions
• When using the A2FM45/61W-VPB010 hydraulic piston pump, ensure its correct installation and commissioning.
• Regularly inspect and maintain all pump components to ensure normal operation and extend service life.
• Choose suitable hydraulic oil and oil filters to maintain the cleanliness and stability of the hydraulic system.
In summary, the A2FM45/61W-VPB010 hydraulic piston pump has a wide range of applications and unique performance characteristics. When using it, it is important to fully understand its working principle and structural characteristics, and pay attention to relevant precautions to ensure its normal operation and optimal performance.