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Oil-pressure operating oil for engineering machineries

A construction machinery and hydraulic technology, applied in the field of hydraulic actuating oil for construction machinery, can solve problems such as small friction coefficient and large pressing force, and achieve the effects of improving lubricating performance, prolonging service life and good anti-rust performance.

Active Publication Date: 2013-08-21
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the wet steering clutch has the disadvantages of small friction coefficient and greater pressing force; in addition, the steering and braking system generally adopts the form of wet steering clutch and humidified steering brake, and the main function of lubricating oil in this system is to smooth Gentle transmission of power requires lubricating oil to have a higher coefficient of static friction

Method used

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  • Oil-pressure operating oil for engineering machineries
  • Oil-pressure operating oil for engineering machineries
  • Oil-pressure operating oil for engineering machineries

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Blend the following components by mass percentage:

[0021]

[0022] The sum of the above components is 100%.

Embodiment 2

[0024] Blend the following components by mass percentage:

[0025]

[0026]

[0027] The sum of the above components is 100%.

Embodiment 3

[0029] Blend the following components by mass percentage:

[0030]

[0031] The sum of the above components is 100%.

[0032] Through the comprehensive evaluation of lubricating oil, all the physical and chemical indexes of the oil product of the present invention meet the requirements for use. Table 1 shows the typical physical and chemical indexes of the oil developed in Example 1.

[0033] Table 1 Typical physical and chemical indicators of hydraulic operating oil for construction machinery

[0034]

[0035]

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PUM

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Abstract

The invention discloses an oil-pressure operating oil for engineering machineries. Castor-base dioctyl sebacate and alkyl naphthalene are compounded to serve as base oil. The oil-pressure operating oil is composed of the following components in mass ratio: 88-92% of the base oil, 1.0-3.0% of antioxygen taken as an additive, 3.0-6.0% of extreme-pressure and abrasion resistance agent, 0.2-0.5% of anti-rusting agent, 0.002-0.005% of anti-foaming agent, 0.8-1.2% of anti-emulsifying agent and 1.0-2.0% of oiliness agent. The oil-pressure operating oil composite for the engineering machineries has good combination property, anti-corrosion performance, hydrolytic stability, oxidation stability, anti-emulsifying property, foam resistance, corrosion inhibition performance, water separation performance, abrasion resistance and bearing capacity, guarantees the oil film thicknesses of a steering system and a braking system, decreases the dynamic and static friction coefficients of metallic surfaces, improves the working efficiency and prolongs the services lives of the steering system and braking system of engineering machines.

Description

technical field [0001] The invention belongs to the oil pressure operating oil for engineering machinery which can ensure sufficient oil film thickness of the steering and braking system under severe conditions, reduce the friction coefficient of the metal surface, improve work efficiency and prolong the service life of the steering and braking system. Background technique [0002] With the development of construction machinery manufacturing technology, construction machinery has been widely used in various fields; hydraulic transmission is a transmission device commonly used in construction machinery equipment, which uses liquid as the transmission medium and uses the pressure or kinetic energy of the liquid to transmit energy system. Hydraulic transmission has the characteristics of small size, light weight, high power, fast response, high precision, large speed range, smooth movement, and convenient operation; the hydraulic system is basically composed of four parts: powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/06C10N30/10C10N30/12C10N30/18
Inventor 黄福川李胜莫宇飞卢朝霞梁景梁慧蓝明新肖友程唐彩珍粟满荣唐兴中田宗义李宏君赵钟兴廖丹葵刘琨黄旖瑶
Owner GUANGXI UNIV
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