A kind of construction machinery hydraulic transmission lubricating oil composition

Abstract

The invention relates to a lubricating oil composite, in particular to a hydrodynamic drive lubricating oil composite for engineering plants, belonging to the technical field of lubricating oil. The lubricating oil composite mainly contains the following components in percentage by weight: mixture of 93-95% of hydrotreating base oil and 2.0-2.4% of polymethyl methacrylate of which the number-average molecular weight is 50000-60000, 0.5-1.0% of phosphite ester, 0.5-1.0% of boronizing thiophosphate phosphorothioate amine salt, 0.5-1.0% of sulfurized isobutene, 0.1-0.3% of nitrogen-contained thiophosphoric acid molybdenum, 0.1-0.3% of amine-type antioxidant, 0.1-0.3%of phenol type antioxidant and 0.1-0.3% of benzotriazole antiseptic antirusting agent. The lubricating oil composite has the beneficial effects of comprehensive performance and wide application range, energy consumption is not reduced while quickly and frequently shifting, less friction heat is generated, and the durability of a clutch sheet is improved. The labor intensity of workers and mechanical maintenance cost are lowered while improving work efficiency, and the lubricating oil composite also has good market prospect.

Description

technical field [0001] The invention relates to a lubricating oil composition, in particular to a lubricating oil composition for engineering machinery hydraulic transmission, and belongs to the technical field of lubricating oil. Background technique [0002] Construction machinery, also known as non-highway equipment, is mostly mobile equipment, such as: excavators, loaders, bulldozers, graders, road rollers, cranes, forklifts, concrete mixer trucks, etc. Such equipment has different requirements for hydraulic transmission oil than other equipment , the working conditions are relatively harsh, because (1) construction machinery is usually operated outdoors, and the ambient temperature changes greatly; (2) construction machinery mostly uses high-pressure plunger pumps with a pressure of 34.3MPa and above; (3) for those with wet For construction machinery with clutches, the friction characteristics of oil are very important; (4) The sealing materials used in construction mac...

AI Technical Summary

Problems solved by technology

Its standard was formulated in the 1980s. Its specifications are relatively low, and it cannot fully reflect the actual oil used in modern hydraulic transmissions. It does not meet the friction characteristics requirements of automobile automatic transmission fluids at all, and cannot meet the growing automobile industry and construction machinery industry in my country. needs, especially the inability to adapt to the requirements of modern engineering equipment, urgently need to be improved

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