The hydraulic pump is the power component of the hydraulic system. It is driven by an engine or an electric motor,hydraulic pump sucks oil from the hydraulic oil tank, forms pressure oil and discharges it,hydraulic pump and sends it to the actuator. Hydraulic pumps are divided into gear pumps, plunger pumps,hydraulic pump vane pumps and screw pumps according to their structure. A hydraulic component that provides pressurized liquid for hydraulic transmission is a kind of pump. Its function is to convert the mechanical energy of power machines (such as electric motors and internal combustion engines) into liquid pressure energy. There are many factors that affect the service life of a hydraulic pump. In addition to the pump's own design and manufacturing factors,hydraulic pump it is also related to the selection of some components related to the use of the pump (such as couplings, oil filters, etc.),hydraulic pump and the operation during trial operation.
The working principle of a hydraulic pump is that movement brings about a change in the volume of the pump cavity,hydraulic pump thereby compressing the fluid so that the fluid has pressure energy. The necessary condition is that the pump cavity has a sealed volume change.