Hydraulic systems are widely used in agricultural machinery, so what major categories are hydraulic pumps divided into?

Hydraulic systems are widely used in agricultural machinery, so what major categories are hydraulic pumps divided into? A hydraulic pump is the core component of a hydraulic system, mainly used to convert mechanical energy into liquid pressure energy, thereby driving other actuating components such as hydraulic cylinders or hydraulic motors to work. It is driven by an electric motor or engine, draws oil from the hydraulic oil tank into the pump chamber, and then outputs it under pressure to the system, pushing the actuating components to complete various actions. Hydraulic pumps are mainly divided into the following major categories: 1. Gear pump: A gear pump is a common hydraulic pump, composed of a pair of intermeshing gears. When the gears rotate, liquid is drawn into the pump chamber and then squeezed out. Its characteristics are simple structure, small size, and light weight, making it suitable for applications with relatively small flow rates. 2. Hydraulic plunger pump: A hydraulic plunger pump adopts a plunger-type working principle and is composed of a series of plungers and sliders. The plungers reciprocate within the pump chamber to achieve liquid suction and discharge. It has the advantages of high pressure and high flow rate, making it suitable for high-power hydraulic systems. 3. Hydraulic vane pump: A hydraulic vane pump is composed of vanes and a pump casing. When the pump shaft rotates, the vanes move under the action of centrifugal force, thereby completing liquid suction and discharge. It has a compact structure and stable operation, making it suitable for agricultural machinery applications with higher requirements. 4. Hydraulic blower: A hydraulic blower is driven by the pressure provided by a hydraulic pump to rotate an impeller, thereby generating airflow. It is mainly used for operations such as drying, cleaning, and conveying in agricultural machinery, and has the characteristics of high air volume and stable pressure.