Excavator hydraulic pump excavator

First, the basic concept and function of excavator hydraulic pump

Definition of excavator hydraulic pump: Excavator hydraulic pump is the core component of the excavator hydraulic system, which is responsible for converting mechanical energy into hydraulic energy to provide power for various actions of the excavator.

The function of the excavator hydraulic pump: The excavator hydraulic pump provides high-pressure oil for the excavator's cylinder, motor and other actuators by sucking in low-pressure oil and pressurizing the output, so as to drive the bucket, boom, slewing platform and other components of the excavator to carry out various actions.

Second, the working principle of the excavator hydraulic pump

Volumetric working principle: Most of the excavator hydraulic pumps adopt the volumetric working principle, that is, by changing the volume of the pump cavity to achieve oil suction and oil pressure. When the volume of the pump chamber increases, a local vacuum is formed, and the oil is sucked in; When the pump chamber volume is reduced, the oil is compressed and discharged.

Sealing and check valve: The hydraulic pump of the excavator is equipped with a sealing device and a check valve to ensure the one-way flow of oil in the pump and prevent oil backflow and leakage.

Third, the type and selection of excavator hydraulic pump

Type: Excavator hydraulic pump can be divided into various types such as gear pump, vane pump and piston pump according to the different structure and working principle. Among them, the piston pump is the most widely used in the hydraulic system of excavators because of its high pressure and large flow characteristics.

Selection: When choosing an excavator hydraulic pump, you need to consider the model, power, working environment of the excavator, as well as the working pressure, flow rate and other parameters of the hydraulic system. At the same time, it is also necessary to consider the brand, quality, after-sales service and other factors of the hydraulic pump.

Fourth, the use and maintenance of hydraulic pumps for excavators

Precautions for use: When using the hydraulic pump of the excavator, attention should be paid to maintaining the cleanliness of the oil to avoid the impurities in the oil causing wear to the pump; At the same time, attention should also be paid to controlling the temperature and pressure of the hydraulic system to avoid damage to the pump caused by too high or too low temperature and pressure.

Maintenance: Regular maintenance of the hydraulic pump of the excavator, such as checking the oil level, replacing the hydraulic oil, cleaning the oil filter, etc., can prolong the service life of the hydraulic pump and improve the work efficiency of the excavator. In addition, for faulty hydraulic pumps, they should be repaired or replaced in time so as not to affect the normal operation of the excavator.

Hydraulic pumps for excavator

Mini excavator hydraulic pump