A kind of lubricating oil composition of worm gear and its manufacturing method

A technology of lubricating oil composition and worm gear, applied in lubricating composition, petroleum industry, additives, etc., can solve problems such as damage to worm gear mechanism, shortening service life, insufficient attention to rust prevention performance, etc.

Active Publication Date: 2019-11-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when these prior art compounds are used in worm gear lubricating oils, there is still room for improvement in the anti-oxidation performance, load-carrying capacity and anti-wear performance of oil products
In addition, the corrosion and rust of some key parts will also seriously damage the worm gear mechanism and shorten its service life
The existing technology does not pay enough attention to the anti-rust performance

Method used

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  • A kind of lubricating oil composition of worm gear and its manufacturing method
  • A kind of lubricating oil composition of worm gear and its manufacturing method
  • A kind of lubricating oil composition of worm gear and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0241] In a 500mL four-neck flask equipped with a stirrer, thermometer, condenser and dropping funnel, add 58.79g (0.323mol) of 2-tert-butyl-6-mercaptophenol, 6.88g (0.048mol) of boron trifluoride Ethyl ether (catalyst for alkylation reaction), 100 mL of n-hexane solvent and 161.61 g (0.162 mol) of polyisobutene (Mn=1000, manufactured by Jihua Group Fine Chemicals Co., Ltd.) were reacted at 80° C. for 2 h. After the reaction, the reaction mixture was washed once with 5% potassium hydroxide solution by mass fraction, and washed to neutrality with hot water to remove the catalyst, and then the solvent and unreacted phenol were distilled off under reduced pressure to obtain polyisobutylene mercaptophenol, hydroxyl The value was 53.49 mgKOH / g. For the determination of hydroxyl value, refer to the acetic anhydride method in GB / T7383-2007.

[0242] An example reaction is as follows:

[0243]

[0244] From the proton nuclear magnetic spectrum analysis of the polyisobutylene merc...

Embodiment 2

[0246]

[0247] Under a nitrogen protection atmosphere, in a 250mL four-necked flask equipped with a stirrer, a thermometer, a condenser and a dropping funnel, add 30.58 grams (156 mmol) of 2-mercapto-4-methyl-6-methylphenol, 9.29 grams ( 112mmol) formaldehyde, 32.38g (176mmol) N-phenyl-p-phenylenediamine and 100mL toluene, stirred rapidly, and reacted at 100°C for 2h. After the reaction was finished, the solvent and a small amount of water generated were distilled off under reduced pressure, and the shielded phenol product with the structure shown in the title was obtained through column chromatography separation.

[0248] Product characterization data are as follows:

[0249] 1 H NMR (300MHz, CDCl 3 ): δ1.40(9H), 2.37(3H), 4.02(1H), 4.83(2H), 6.95-7.00(12H), 7.26(2H), 7.55(1H);

[0250] 13 C NMR (75MHz, CDCl 3 ): δ21.2, 30.1, 34.1, 49.9, 114.3, 118.9, 119.4, 121.8, 122.2, 125.8, 126.5, 129.5, 131.8, 132.3, 133.5, 143.3, 150.8;

[0251] C 24 h 28 N 2 OS calcd for ...

Embodiment 3

[0253]

[0254]Under a nitrogen protective atmosphere, in a 250mL four-necked flask equipped with a stirrer, a thermometer, a condenser and a dropping funnel, add 31.65 grams (133mmol) of 2,6-di-tert-butyl-4-mercaptophenol, 1.86 grams (62mmol ) formaldehyde, 28.15 grams (153 mmol) of N-phenyl-p-phenylenediamine, 0.75 grams (7.5 mmol) of hydrochloric acid and 150 mL of isopropanol, stirred rapidly, and reacted at 25 ° C for 24 h. After the reaction was finished, the solvent and a small amount of water generated were distilled off under reduced pressure, and the shielded phenol product with the structure shown in the title was obtained through column chromatography separation.

[0255] Product characterization data are as follows:

[0256] 1 H NMR (300MHz, CDCl 3 ): δ1.36-1.54(18H), 3.75(1H), 4.80(2H), 5.32(1H), 6.80(2H), 6.97(5H), 7.17(2H), 7.26(2H), 7.55(1H) ;

[0257] 13 C NMR (75MHz, CDCl 3 ): δ29.6, 34.6, 51.2, 119.4, 121.8, 126.5, 129.5, 131.4, 136.6, 144.5, 153.4...

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Abstract

The present invention relates to a worm wheel worm lubricating oil composition, which comprises a shielded phenol compound, an extreme pressure anti-wear agent, a metal deactivator, an ash-free friction improver, an anti-emulsifying agent and a main amount of a lubricating oil base oil, wherein the structure of the shielded phenol compound is represented by a formula (I) defined in the specification, and each group in the formula (I) is defined in the specification. According to the present invention, the worm wheel worm lubricating oil composition has advantages of excellent oxidation resistance, excellent bearing ability, excellent anti-wear and anti-friction performance, excellent corrosion resistance, excellent rust resistance and excellent emulsifying resistance, and can completely meet the performance requirements of L-CKE, L-CKE / P worm wheel worm lubricating oil products.

Description

technical field [0001] The invention relates to a worm gear lubricating oil composition. Specifically, the present invention relates to a long-life CKE / P extreme pressure worm gear lubricating oil composition. Background technique [0002] Because of its small size, large transmission ratio, stable operation, low noise and large output torque, the worm gear mechanism is often used to transmit motion and power between two interlaced shafts, and has been widely used. Due to the large sliding between the tooth surfaces and the relatively longer contact time of the teeth in the worm gear transmission, the friction, wear and heat generation are more serious. Therefore, it is not suitable to use ordinary gear oil for lubrication. Worm gear lubricating oil plays a pivotal role in worm gear transmission, which can reduce friction, reduce wear, improve the transmission efficiency of worm gear pairs, and prolong the service life of worm gears. At present, worm gear lubricants are di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10M135/30C10M135/36C10M143/06C10N30/10C10N30/12C10N30/04C10N30/06C10N40/08
Inventor 苏朔段庆华张辉杨海宁姚立丹
Owner CHINA PETROLEUM & CHEM CORP
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