According to the causes of fever, it can be divided into two categories:
One is heating caused by design;
One is the heating caused by the failure or improper use of hydraulic components.
Obviously, the causes of fever are different, and the elimination methods are also different.
Improper selection of the oil number of the hydraulic oil may cause the heating of the hydraulic system. When the oil temperature of the selected hydraulic oil is low, the system works normally, but after the system works for a period of time, the oil temperature increases and the viscosity of the hydraulic oil decreases, resulting in increased internal leakage of the system. With the increase of leakage, the oil temperature increases and forms a vicious circle of oil temperature.
The solution is to select the hydraulic oil with appropriate viscosity according to the load of the system and the requirements of normal working temperature.
The unreasonable design of the oil tank reduces the heat dissipation effect of the hydraulic system. The main function of the system heating oil tank is to store hydraulic oil, but it also plays the role of heat dissipation, precipitation of impurities and separation of water.
In the hydraulic system, the accumulator can store energy for short-term large oil supply, supplement leakage when the system is maintaining pressure, or slow down pressure fluctuation.