Las bombas variables de pistones axiales son un tipo de bomba hidráulica que utiliza pistones giratorios y un plato cíclico en ángulo para variar el desplazamiento o el caudal de la bomba.. Una serie común de bombas de pistones axiales es la serie A4VG de Bosch Rexroth., a leading manufacturer of hydraulic components. En esta publicación de blog, we’ll take a closer look at the features and applications of the Bomba variable de pistones axiales A4VG.
How The A4VG Pump Works?
The A4VG is an axial piston swashplate design pump which means it uses pistons arranged in a circular pattern around a drive shaft. The pistons press against a swashplate that is mounted at an angle. As the drive shaft rotates, the angled swashplate causes the pistons to stroke in and out of their barrels. This sucking action draws hydraulic fluid in from the inlet port and the pushing action presses it out the outlet port.
By changing the angle of the swashplate, the stroke length of the pistons can be varied. This allows the displacement per revolution of the pump to be adjusted, altering the flow rate. At max swashplate angle, displacement and flow are at 100%. At min angle, there is no piston movement and flow drops to 0%. The A4VG enables stepless variation of the swashplate between these extremes, giving it the ability to smoothly and precisely control flow.
Key Features And Benefits
The A4VG axial piston variable pump provides a number of performance advantages:
- Compacto, lightweight design – Installation flexibility with range of shaft options.
Wide operating pressure range – Hasta 5,075 psi maximum system pressure capability. - Alta eficiencia – Axial piston and swashplate design minimizes losses.
- Steady operation – Minimizes noise and vibration.
- Long life – Durable components provide thousands of hours of reliable service.
- Versatile controls – Variety of mechanical and electronic control options.
The A4VG is highly efficient for its size and weight. The axial piston design and engineered surfaces reduce hydraulic losses. This improves overall system efficiency and reduces heat generation and power consumption.
The pump is designed for quiet operation with minimal noise and vibration. It maintains steady flow output across its operating range without pulsation or fluctuation in pressure. The A4VG delivers smooth, stable hydraulic power.
Applications Of The A4VG Variable Pump
The combination of compact size, high pressure capability, and variable displacement make the Axial Piston Variable Pump A4VG well-suited for a range of mobile and industrial uses, incluido:
- Equipo de construcción – Excavadoras, backhoes, grúas, bulldozers. Provides smooth and precise control of hydraulics for work functions.
- Materials handling – Carretillas elevadoras, scissor lifts. Allows fine position and speed control for material handling.
- Machine tools – Prensas, metal cutting/forming machines. Enables variable speed or force control.
- Process equipment – Plastic injection molding, metal die casting presses.
Adjustable flow/pressure for different molds or operations. - Robotics – Robotic arms and manipulators. Allows flexible programmable motion profiles.
- Marine propulsion – Outboard boat motors. Varies output for smooth acceleration and speed control.
The A4VG works well in applications that require adjustable hydraulic flow and pressure to drive or control mechanical motion and forces. The axial piston design can efficiently handle the high pressures needed for heavy duty equipment while also providing fine control for smooth and quiet operation.