Displacement and Flow Rate:
The A7VO80 has a displacement of 80 cc/rev, indicating the volume of fluid displaced by the pump in one revolution.
This displacement is a crucial factor in determining the pump's capacity to deliver hydraulic fluid, and it influences the overall flow rate of the hydraulic system.
Pressure Rating:
This hydraulic piston pump is designed to operate at high pressures, typically reaching up to 450 bar. The ability to handle high pressure is essential for ensuring efficient power transmission and reliable operation in heavy-duty applications.
Rotation Speed:
The A7VO80 is capable of operating at varying speeds, allowing flexibility in adapting to different working conditions. The rotation speed is a critical parameter that influences the pump's performance and the speed at which hydraulic functions are actuated.
Efficiency and Control:
Bosch Rexroth emphasizes efficiency in its hydraulic components, and the A7VO80 is no exception. The pump is equipped with advanced control features, such as swashplate angle adjustment, to optimize efficiency and responsiveness according to the specific requirements of the excavator.
Hydraulic Piston Pump Components:
Understanding the components of the hydraulic piston pump is vital for effective repair and maintenance:
Piston and Cylinder Block:
The pump utilizes axial pistons that reciprocate within the cylinder block.
The movement of these pistons generates the hydraulic fluid flow, providing the necessary power for the excavator's functions.
Swashplate Mechanism:
The swashplate is a key component that regulates the displacement of the pistons. By adjusting the angle of the swashplate, operators can control the pump's output and, consequently, the speed and force of hydraulic functions.
Valve Plate:
The valve plate controls the flow of hydraulic fluid to and from the pistons. Proper functioning of the valve plate is essential for maintaining the pump's efficiency and preventing fluid leakage.
Drive Shaft:
The drive shaft connects the pump to the engine or motor of the excavator, transmitting mechanical power to drive the pump's operation.
Bearings and Seals:
High-quality bearings and seals are crucial for minimizing friction, preventing leaks, and ensuring the longevity of the hydraulic piston pump.
