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A kind of special gear oil for subway train and preparation method thereof

A gear oil and train technology, which is applied in the field of special gear oil for subway trains and its preparation, can solve the problems of shortening the service life of friction parts, affecting the safe operation of subway trains, and carbon deposits in friction parts of gearboxes, so as to reduce noise and reduce subway Operating costs, the effect of extending oil change intervals

Inactive Publication Date: 2019-01-01
JIANGXI KIRBY LUBRICANT PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current GL-5 specification vehicle gear oil will turn black and thick after running for a period of time in the high temperature and extreme pressure environment of the subway train gearbox, and carbon deposits, sludge and paint film will appear on the friction parts of the gearbox, which will affect the lubrication effect , increase friction loss and shorten the service life of friction parts
In severe cases, it will also affect the safe operation of subway trains and bring serious safety hazards

Method used

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  • A kind of special gear oil for subway train and preparation method thereof
  • A kind of special gear oil for subway train and preparation method thereof
  • A kind of special gear oil for subway train and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A special gear oil for subway trains is composed of the following components in parts by weight: 93 parts of base oil, 1 part of thickening agent, 0.4 part of pour point depressant, 3.9 parts of special compounding agent, and 0.0015 parts of antifoaming agent.

[0026] The base oil is composed of 650SN, 500N, and 150BS base oils, and its weight ratio is: 47 parts of 650SN, 16 parts of 500N, and 30 parts of 150BS.

[0027] The tackifier is polyisobutylene.

[0028] The pour point depressant is polymethacrylate.

[0029] The special compounding agent includes by weight: 12 parts of extreme pressure antiwear agent, 11 parts of oily agent, 0.1 part of antioxidant, 0.12 part of friction modifier, and 0.1 part of rust inhibitor. Among them, the extreme pressure antiwear agent is a mixture of 3 parts of acidic dibutyl phosphite and 9 parts of vulcanized cottonseed oil, the oily agent is benzotriazole fatty acid ammonium salt, the antioxidant is dialkyl dithiocarbamate, fricti...

Embodiment 2

[0033] A special gear oil for subway trains is composed of the following components in parts by weight: 93 parts of base oil, 1 part of thickener, 0.4 part of pour point depressant, 4.1 parts of special compounding agent, and 0.0015 parts of antifoaming agent.

[0034] The base oil is composed of 650SN, 500N, and 150BS base oils, and its weight ratio is: 47 parts of 650SN, 16 parts of 500N, and 30 parts of 150BS.

[0035] The tackifier is polyisobutylene.

[0036] The pour point depressant is polymethacrylate.

[0037] The special compounding agent includes by weight: 12 parts of extreme pressure antiwear agent, 12 parts of oily agent, 0.2 part of antioxidant, 0.18 part of friction modifier, and 0.14 part of rust inhibitor. Among them, the extreme pressure antiwear agent is a mixture of 3 parts of acidic dibutyl phosphite and 9 parts of vulcanized cottonseed oil, the oily agent is benzotriazole fatty acid ammonium salt, the antioxidant is dialkyl dithiocarbamate, friction Th...

Embodiment 3

[0041] A special gear oil for subway trains is composed of the following components in parts by weight: 93 parts of base oil, 1 part of thickening agent, 0.4 part of pour point depressant, 4.4 parts of special compounding agent, and 0.0015 parts of antifoaming agent.

[0042] The base oil is composed of 650SN, 500N, and 150BS base oils, and its weight ratio is: 47 parts of 650SN, 16 parts of 500N, and 30 parts of 150BS.

[0043] The tackifier is polyisobutylene.

[0044] The pour point depressant is polymethacrylate.

[0045]The special compounding agent includes by weight: 12 parts of extreme pressure antiwear agent, 14 parts of oily agent, 0.3 part of antioxidant, 0.24 part of friction modifier, and 0.18 part of rust inhibitor. Among them, the extreme pressure antiwear agent is a mixture of 3 parts of acidic dibutyl phosphite and 9 parts of vulcanized cottonseed oil, the oily agent is benzotriazole fatty acid ammonium salt, the antioxidant is dialkyl dithiocarbamate, fricti...

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PUM

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Abstract

A subway train special gear oil is particularly suitable for using in high temperature and extreme pressure work status of a subway train in frequent start, braking and high-speed operation, has excellent high temperature stability, resistance to extreme pressure and anti-wear properties and high temperature oxidation resistance, ensures subway train gearboxes maintain stable oil films under very heavy duty conditions, reduces noise, prevents gear wear, can effectively prevent and subway train low rotation speed / high torque wear and intense heat produced in high-speed operation, and is especially suitable for using in high temperature and extreme pressure work status of the subway train in frequent start, braking and high-speed operation. By use of the subway train special gear oil, the gear oil change period may be extended by more than 20%, and the subway operating cost is reduced.

Description

technical field [0001] The invention relates to a lubricating oil, in particular to a special gear oil for subway trains and a preparation method thereof, belonging to the technical field of synthetic lubricating oil. Background technique [0002] Gear oil is an important lubricating oil prepared mainly from petroleum lubricating oil base oil or synthetic lubricating oil, with the addition of extreme pressure antiwear agents and oily agents. Used in various gear transmissions to prevent tooth surface wear, abrasion, sintering, etc., prolong its service life and improve transmission efficiency. Gear oil should have good anti-wear, load resistance and suitable viscosity. In addition, it should also have good thermo-oxidative stability, anti-foaming properties, water separation properties and anti-rust properties. [0003] The quality grade of automotive gear oil is usually classified by API (American Petroleum Institute), as shown in the table below. [0004] [0005] At...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10M167/00C10N40/04C10N30/06C10N30/10
Inventor 陈浩张惠萍李骏陈国需
Owner JIANGXI KIRBY LUBRICANT PROD
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