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Crown gear central differential lubricant composition

A lubricant composition, the technology of the central differential, applied in the directions of the lubricant composition, the petroleum industry, etc., can solve the problems of increasing the non-slip torque, etc., and achieve the effects of reducing wear, providing vibration, and preventing corrosion

Inactive Publication Date: 2015-02-18
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The relative movement is thus limited, which limits the movement of the slipping drive shaft, thereby increasing the torque without slipping

Method used

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  • Crown gear central differential lubricant composition
  • Crown gear central differential lubricant composition
  • Crown gear central differential lubricant composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] It is formed by blending the following components in mass percentage:

[0019] components

Embodiment 2

[0020] Embodiment 2: each component of following mass percentage is reconciled and forms:

[0021] components

Embodiment 3

[0023] It is formed by blending the following components in mass percentage:

[0024] components

Content (mass percentage)

50% polyinternal olefin compounded with 50% diisodecyl sebacate by mass

74.59％

The mass ratio of 50% diisobutyl p-cresol and 50% phenyl-β-naphthylamine composite

1.5％

Combination of 70% sulfurized isobutylene and 30% trimethyl phosphate by mass

8.0％

The mass ratio is 70% sulfurized olefinic cottonseed oil and 30% oleic acid oxalate compound

4.0％

Combination of 50% benzotriazole derivatives and 50% 1,3,4-thiadiazole by mass

1.2％

Alkyl phosphite

2.0％

Benzyl silicone oil

0.01％

Mass ratio of 30% tolyl benzotriazole and 70% sodium petroleum sulfonate composite

1.5％

Molybdenum dithiocarbamate

1.2％

polyalkoxy polyol

1.0％

dienyl succinimide

3.0％

High base value calcium petroleum sulfonate

2.0％

[0025] The main techn...

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PUM

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Abstract

The invention discloses a crown gear central differential lubricant composition which uses the composite of polyinternalolefins and isodecyl sebacate as base oil and is matched with multiple composite additives, including antioxidant, antiwear additive, oily agent, metal passivator, friction improver, antifoam agent, rust inhibitor, antioxidant preservative, demulsifying compound, dispersing agent and reinforcing agent. The lubricant composition has the advantages of proper friction factor, favorable friction and abrasion resistance, favorable heat stability, favorable viscosity retentivity, favorable viscosity-temperature characteristics, favorable clean dispersity, favorable heat dissipation property, favorable carrying capacity, high acid number controllability and high oxidation resistance, prevents corrosion, reduces the abrasion, shock load and vibrations, and can effectively provide hydraulic power.

Description

technical field [0001] The invention belongs to the field of gear transmission lubricants in vehicle four-wheel drive, in particular to a lubricant composition for a crown tooth center differential. Background technique [0002] The usual torque-sensing central differential is mainly composed of a differential housing, planetary gears, sun gears, ring gears and friction discs. The planetary gears mesh with the ring gear and the sun gear internally and externally. The sun gear and ring gear are respectively power-connected to the front and rear drive shafts. When the speeds of the ring gear and the sun gear are not equal, the planetary gears are forced to produce an autorotation, which in turn causes axial relative motion with the ring gear or the sun gear. The pressure of the axial movement exerts pressure on the friction disc mounted on the device, creating internal friction. Relative motion is thus limited, which limits the movement of the slipping drive shaft, thereby ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N40/04C10N30/06C10N30/08C10N30/04C10N30/10C10N30/12
Inventor 黄福川李康春邓富康黄伊琳黄旖瑶
Owner GUANGXI UNIV
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