EQUIPMENT LUBRICATING OIL
time：2018-05-03
1、OverviewThe equipment lubricating oil mainly includes hydraulic oil, gear oil, transformer oil, air compressor oil, guide oil, bearing oil, ingot oil, heat conduction oil, chain oil, support wheel lubricating oil and so on.
The hydraulic oil is the transmission medium used by the hydraulic system of liquid pressure energy. It is mainly used in industrial hydraulic system, mobile hydraulic transmission system, engineering vehicle, marine hydraulic system and so on. It plays the role of power transmission, lubrication, anti-wear, rust protection, anti-corrosion and cooling in the hydraulic system.
2、Quality requirements for hydraulic oil
(1)Suitable viscosity and good viscosity temperature performance, in order to ensure that the working temperature change conditions can accurately and sensitively transfer power, and can ensure the normal lubrication of hydraulic components.
(2)Excellent anti-wear property, strong shear resistance and long service life.
(3)It has good rust resistance and antioxidant stability. It is not easy to oxidize and deteriorate under high temperature and high pressure condition, and has long service life.
(4)It has good anti foam property, the foaming of the oil is easy to disappear in order to make the power transfer stable and avoid the accelerated oxidation of hydraulic oil.
(5)It has excellent anti emulsifying property and prevents water leakage from causing emulsification.
3、Maintenance work of hydraulic oil
(1)Ensure that the hydraulic oil is not used at the prescribed high temperature, and the oil will oxidize and deteriorate at high temperature. Under normal conditions, the viscosity change is small and the control standard is ± 10%. If the viscosity changes beyond this range, it is probably due to the mixing and oxidation of the oil. New oil is needed at this time.
(2)The air filter on the hydraulic station should use filters that can filter particles and filter moisture. The management standard of normal moisture is less than 1000ppm (except for water glycol series hydraulic oil). If the moisture is beyond this range, it is required to drain and replenish new oil in time.
(3)If the total acid value of the oil is higher than that of the original oil, if the total acid value of the oil is 0.5mgK0H/g, it is proved that the new oil must be renewed if the hydraulic oil has been oxidized.
(4)To prevent air entering oil, the oil pump oil suction mouth should be sealed and reliable. The oil suction pipe in the tank should not be too close to the oil surface. The highest point of the system should be set up the exhaust valve and release the free air in the oil.
(5)The oil tank should be designed reasonably, the oil suction pipe should be far away from the oil pipe, avoid the use of lead, zinc, copper and other materials that catalyze the oxidation of oil. The oil tank should be coated with oil resistant anti-rust paint, and the cooler in the tank can not leak.