What is the basic principle of hydraulic pump
The basic principle of hydraulic pump A hydraulic component that provides a pressurized liquid for hydraulic transmission. It is a type of pump. Its function is to transform the mechanical energy of the engine (such as motor and internal combustion engine) into liquid pressure. The CAM is spun by an electric motor. When the CAM drive plunger upward movement, the piston and cylinder form sealing volume decreases, and the oil from the seal volume extrusion, the check valve to where they are needed. When the CAM rotates to the down part of the curve, the spring force plunger downward, form a certain vacuum degree, oil tank of oil under the action of atmospheric pressure into the sealing capacity. The convex wheel keeps the plunger up and down, the seal volume decreases and increases periodically, and the pump absorbs oil and oil. Hydraulic pump, is the power of the hydraulic system components, is driven by the engine or motor, suction pressure oil from the hydraulic oil tank, formation pressure oil discharge, a components to the implementation of the components. Hydraulic pump is divided into gear pump, plunger pump, vane pump and screw pump.
A hydraulic pump is a hydraulic component that provides a pressurized liquid for hydraulic transmission. It is a type of pump. Its function is to transform the mechanical energy of the engine (such as motor and internal combustion engine) into liquid pressure. The output flow can be adjusted as needed to be called a variable pump, which is called a quantitative pump. There are three kinds of pump, vane pump and plunger pump in hydraulic system. Gear pump: small volume, simple structure, low demand for oil and low price; But the pump shaft is unbalanced, the wear is serious, the leak is bigger. Vane pump: it is divided into double acting vane pump and single acting vane pump. This kind of pump flow is uniform, smooth running, low noise, working pressure and volume efficiency are higher than the gear pump, the structure is more complicated than the gear pump. Plunger pump: high volume efficiency, low leakage, can work under high pressure, mostly for high power hydraulic system. But the structure is complex, the material and the processing precision is high, the price is expensive, the clean degree of oil is high. The plunger pump is used only when the gear pump and vane pump are not able to meet the requirements. There are other forms of hydraulic pumps, such as a screw pump, but the application is not as common as these three. It is, of course, the most important function of converting mechanical energy into liquid, such as motors and internal combustion engines.
Because of the different classification of the hydraulic pump, the principle of each is different, but there are four requirements: The fuel tank communicates with the atmosphere, Seal volume, The seal volume can alternate, There are oil fittings. These are all necessary for the hydraulic pump.
