Energy-saving engineering machinery hydraulic oil with high viscosity index and ultralow temperature

Abstract

The invention discloses energy-saving engineering machinery hydraulic oil with a high viscosity index and an ultralow temperature. The energy-saving engineering machinery hydraulic oil is composed of, by weight, 0.1-1 part of tricresyl phosphate, 0.5-1.5 parts of an antiwear agent, 3-7 parts of benzene triazole fatty amine, 1-5 parts of ethylene glycol oleate, 70-90 parts of viscosity index improvers, 1-3 parts of purification dispersant, 1-3 parts of antioxygen, 2-4 parts of 4, 4'-di-iso-octyldiphenylamine, 3-9 parts of pour point depressant, 0.01-0.05 part of an anti-foaming agent and 800-1000 parts of base oil. According to the energy-saving engineering machinery hydraulic oil, an ash-free extreme pressure antiwear additive agent is adopted for complex formulation, applicability is wider, abrasion resistance is better, efficiency is higher, and lubrication of a plunger pump of a hydraulic transmission system with high power and high pressure can be effectively met; preferably, compatibility between an oiliness agent and the antiwear agent with the base oil is good, and lubrication guarantee can be provided in time in different work stages; equipment can operate steadily, pressure transfer is even, frication is lowered, abrasion is reduced, temperature rise is low, heat dissipation is high in speed, the power loss is lowered, energy consumption is saved, and the oil exchange cycle is prolonged.

Description

technical field [0001] The invention relates to a static hydraulic system and belongs to the technical field of hydraulic oil, in particular to a high-viscosity index ultra-low temperature energy-saving engineering machinery hydraulic oil. Background technique [0002] There are many types of construction machinery, including excavators, loaders, cranes, mixer trucks, etc. These equipment generally work in the field with harsh natural environments for many years, and they all need to perform necessary work through the hydraulic transmission system. In the actual use process, since there is no relevant standard for domestic construction machinery special hydraulic oil, there are few hydraulic oils for the characteristics of construction machinery. Generally, the hydraulic oil used in industrial equipment is used, especially because the industrial equipment system generally uses It is a vane pump with low pressure, and construction machinery generally uses a plunger pump with ...

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Problems solved by technology

[0003] The hydraulic oil currently used has low viscosity index, poor viscosity-temperature performance, and poor oxidation stability. At low temperatures, the oil becomes viscous, which increases energy consumption. Under extreme conditions, it causes wear, damages the machine parts, and fails to work normally; Oxidation at high temperature shortens the life of the oil product, produces sludge, and clogs the filter device, making it difficult to meet the working conditions of the hydraulic system in a complex environment

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