variable displacement vane pumps for harvester and tractor

Variable displacement vane pumps are hydraulic pump with adjustable displacement and pressure control function, its core feature lies in the pressure adjustment device and flow rate adjustment device, so that the output flow rate of the pump can be automatically adjusted according to the change of system load. This pump can automatically adapt and adjust the output power according to the size of the working load and the demand of the hydraulic system to ensure the efficient operation of the hydraulic system under various working conditions. Its design allows for more precise control of flow and pressure, and is particularly suited to hydraulic systems with volumetric speed control.

Variable displacement vane pumps realize the suction, compression and discharge of liquid through the interplay of rotor, vane and eccentric sleeve. In this type of pump, the angle of inclination of the vanes and the displacement of the pump are adjustable and are usually controlled by a pressure adjustment device and a flow rate adjustment device. As the load changes, the flow and pressure are adjusted accordingly, thus ensuring that the hydraulic system is able to provide hydraulic power that matches the load demand. The pressure regulator ensures that when the system pressure reaches a set limit, the pump will automatically depressurize to prevent overpressurization. The flow regulator automatically adjusts the pump displacement according to load changes, optimizing the operating efficiency of the hydraulic system.

variable displacement vane pumps Features:

1. Automatic adjustment of flow and pressure: variable vane pumps can automatically adjust the output flow and pressure according to changes in load, so that the power output of the hydraulic system matches the size of the load and working speed. Avoid over-supply and energy waste, improve the efficiency of the hydraulic system.
2. Safe and reliable: equipped with a pressure adjustment device to ensure that the pump in the case of overpressure to automatically adjust or stop working, effectively avoiding damage to equipment or safety hazards due to overpressure, to ensure the safe operation of the system.
3. Adaptable: variable vane pumps can be automatically adjusted under different loads and working environments, adapting to the various changes in the hydraulic system to ensure the stability and efficiency of the system under different working conditions.
4. Precise control: due to the precise adjustment function of flow and pressure, variable vane pumps can provide very precise hydraulic control, especially suitable for application scenarios requiring high precision and high dynamic response.

Variable displacement vane pumps are widely used in industrial equipment that requires efficient and precise control of hydraulic system flow and pressure.

Common application areas include:

1. Volume speed control hydraulic system: In the hydraulic system that requires volumetric speed control, variable vane pumps can automatically adjust the flow and pressure according to the different loads, to ensure that the hydraulic system can provide the required power under different working conditions, widely used in high dynamic response and speed control requirements of the occasion.
2. Construction machinery: in excavators, cranes, bulldozers and other construction machinery, variable vane pumps to provide hydraulic power, automatically adjust the flow and pressure of the pump, to ensure that under different workloads can be efficient and smooth to complete a variety of complex operations.
3. Injection molding machine: injection molding machine in the process requires precise hydraulic control, variable vane pumps can automatically adjust the flow and pressure according to the load changes in the injection molding machine, to ensure that the injection precision and processing efficiency.
4. CNC machine tools: CNC machine tools hydraulic system needs to provide high-precision hydraulic power in the working process, variable vane pumps can automatically adjust the flow rate according to the changes in the machine tool load, so as to maintain stable performance and improve the machining accuracy.
5. Presses: in a variety of hydraulic presses, variable vane pumps provide dynamic response hydraulic power to ensure stable output under high loads and high pressure environments, avoiding excessive waste and overloaded operation.
6. Automated production lines: in the hydraulic system of automated production lines, variable vane pumps can automatically adjust the flow and pressure according to the hydraulic demand of different production processes to optimize production efficiency.
7. Agricultural machinery: in agricultural machinery such as harvesters, tractors and other equipment, variable vane pumps can automatically adjust the flow rate according to the workload, to ensure that the equipment in different operating conditions of efficient and stable operation.
8. Hydraulic station: as a hydraulic power source, variable vane pumps can provide the power support required by the hydraulic station, in the case of load changes, by adjusting the flow and pressure to ensure the continuous and stable operation of the hydraulic station.