How To Prevent And Cure: Hydraulic Pumps Oil Temperature Problem
Engineering machinery hydraulic pump oil working temperature is generally better in the range of 30 degrees to 80 degrees, too high oil temperature will have a series of adverse effects on the system, such as reduced viscosity, increased leakage, volumetric efficiency decreased, resulting in hydraulic velocity Unstable, will cause gaps between motion amplitudes with different thermal expansion coefficients, and even jam, etc., will cause oil deterioration, seal aging, loss of sealing performance, etc. There are various reasons for the rise in oil temperature. For example, the volume of the fuel tank is too small, the heat dissipation area is not enough, the amount of oil stored in the fuel tank is too small, the ambient temperature is high, and the cooler fails. There is no unloading circuit in the system. Under high pressure overflow; the oil pipe is too thin and too long, excessive bending, excessive pressure loss, component processing accuracy is not high, and frictional heating of relative moving parts is excessive.
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