variable displacement vane pump for hydraulic station

Variable displacement vane pumps are widely used in various hydraulic systems by virtue of their ability to automatically adjust the flow rate and pressure, especially in the occasions where volumetric speed regulation is required. It can not only improve the working efficiency of the hydraulic system and save energy, but also ensure that the equipment can run stably and efficiently under different loads. Variable vane pumps are widely used in modern industrial equipment, especially suitable for construction machinery, injection molding machines, CNC machine tools and other demanding hydraulic systems.

variable displacement vane pump Principle:

The working principle of variable vane pumps is similar to that of fixed displacement vane pumps, mainly through the relative motion of rotor, vane and eccentric sleeve to complete the suction, compression and discharge of liquid. However, the variable vane pump is characterized by its vane eccentricity can be adjusted to change the displacement of the pump. By adjusting the angle of inclination of the vanes, variable vane pumps are able to change the displacement in real time according to the load demand, ensuring that the hydraulic system is able to provide the appropriate flow rate and pressure under different operating conditions. A pressure adjustment device within the pump ensures that the pump automatically limits pressure in the event of overpressurization, while the flow adjustment device automatically adjusts the flow rate according to system demand.

variable displacement vane pump Features:

1. High efficiency: due to the ability to automatically adjust the output flow and pressure according to the load demand, variable vane pumps in different working conditions can provide good power output, thus improving the overall efficiency of the system and reducing unnecessary energy waste.
2. Energy saving: variable vane pumps by automatically adjusting the output flow and pressure, so that its output power and load demand accurate match. Compared with the traditional fixed displacement pump, it can reduce excessive hydraulic energy consumption and realize energy saving effect.
3. Safe and reliable: variable vane pumps are equipped with a pressure adjustment device, when the pressure of the hydraulic system reaches the set value, the device will automatically limit the pressure output of the pump to prevent the system from overpressurization, to ensure the safe operation of the hydraulic system.
4. Adaptable: due to the flow and pressure adjustment function, variable vane pumps can adapt to different working conditions and load changes, to ensure that the hydraulic system can cope with a variety of dynamic changes at the same time as the efficient operation.
5. Precise control: variable vane pumps can accurately adjust the flow and pressure of the hydraulic system, suitable for volume speed control of the hydraulic system. In the case of load changes, the pump can respond quickly to provide accurate hydraulic power to maintain the smooth operation of the equipment.

variable displacement vane pumps are widely used in hydraulic systems that require flow and pressure regulation, especially for the following areas:

1. Volumetric speed control hydraulic system: in the need for volumetric speed control hydraulic system, variable vane pumps can automatically adjust the displacement according to the load changes, so that the system can provide the required hydraulic power in different working conditions. For example, in some automated production lines, variable vane pumps can regulate the hydraulic demand of different processes, to ensure that the production process is carried out smoothly.
2. Engineering machinery: in excavators, bulldozers, cranes and other construction machinery, variable vane pumps are used to provide hydraulic power to regulate a variety of mechanical action. The pump can automatically adjust the flow rate according to the size of the load to ensure that there is appropriate hydraulic support under different loads, thus improving the efficiency and performance of the equipment.
3. Injection molding machine: injection molding machine hydraulic system often need accurate flow and pressure control. Variable vane pumps can automatically adjust the flow rate and pressure according to the operating requirements of the injection molding machine, so that the injection molding machine can work efficiently and stably under various working conditions, and improve production accuracy and efficiency.
4. CNC machine tools: in the hydraulic system of CNC machine tools and other high-precision equipment, variable vane pumps can provide precise hydraulic power to support cutting, feeding, clamping and other complex actions to ensure the accuracy and stability of machine tool operations.
5. Presses: in hydraulic presses, stamping presses and other equipment, variable vane pumps provide continuous and stable hydraulic power, and can automatically adjust the flow and pressure according to the different requirements of the workpiece, to ensure efficient and accurate work process.
6. Hydraulic system: applicable to hydraulic stations, industrial hydraulic power units and other hydraulic systems, variable vane pumps can provide different hydraulic power according to the demand, to enhance the reliability and energy efficiency of the system.
7. Agricultural machinery: in agricultural machinery (such as tractors, harvesters, etc.), variable vane pumps are used to drive the hydraulic system, which can automatically adjust the flow rate and pressure according to the workload to ensure the efficient operation of mechanical equipment.