A kind of preparation method of planetary reducer grease

A planetary reducer and grease technology, applied in the field of grease, can solve the problems of gear grease leakage, unstable product quality, complex process, etc., and achieve the effects of reducing gear wear, high solid load reaction efficiency, and simple process

Active Publication Date: 2022-02-15
东莞市唯纳孚润滑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing technology, according to the structural characteristics and operating conditions of the planetary reducer in the current market, the gear grease leaks through the sealed deep groove bearing due to the existence of the pressure difference between the inside and outside of the cavity and the lack of sealing structure during the operation of the reducer. , and with the development of the reducer industry, the quality requirements of the lubricating grease required by the medium and high-end reducer are strict. The existing reducer grease has many defects in the noise generated during the operation of the equipment, the temperature rise, and the service life of the equipment.
[0004] Simultaneously, the existing planetary reducer lubricating grease preparation process is complex, the cost is high, the product quality is unstable, and there are

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  • A kind of preparation method of planetary reducer grease

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A preparation method of planetary reducer grease, comprising the steps of:

[0043] (1) In parts by weight, take 20 parts of refined mineral oil, 26.6 parts of polyα-olefin, 6 parts of lauryl hydroxystearic acid and 0.1 part of calcium hydroxide, mix them, heat up to 80°C for 0.5h, and then heat up to 100°C ℃, add 0.6 parts of lithium hydroxide monohydrate for saponification reaction for 2 hours; heat up to 210 ℃ for refining, keep the temperature for 20 minutes;

[0044] (2) After adding 10 parts of refined mineral oil and 13.4 parts of polyα-olefin, quench the temperature to 180°C for thickening, keep the constant temperature for 20 minutes, and carry out dispersing and circulating shearing; further, the quenching adopts a quenching mixer;

[0045] (3) Lower the temperature of the mixture obtained in step (2) to 120°C, add 18 parts of polyisobutylene, 4 parts of extreme pressure antiwear agent, 0.5 part of oxidizing agent, and 0.9 part of rust inhibitor, and stir even...

Embodiment 2

[0063] In this embodiment, a preparation method of grease for a planetary reducer comprises the following steps:

[0064] (1) In parts by weight, take 20 parts of refined mineral oil, 26.6 parts of polyα-olefin, 8 parts of lauryl hydroxystearic acid and 0.9 parts of calcium hydroxide, mix them, heat up to 80°C for 1 hour, and then heat up to 100°C. Add 0.5 lithium hydroxide monohydrate for saponification reaction for 2 hours; heat up to 220°C for refining, keep the temperature for 20 minutes;

[0065] (2) After adding 10 parts of refined mineral oil and 13.4 parts of polyα-olefin, quench the temperature to 170°C for thickening, keep the temperature for 10 minutes, and carry out dispersing and cyclic shearing;

[0066] (3) Lower the temperature of the mixture obtained in step (2) to 120°C, add 17 parts of polyisobutylene, 0.5 part of antioxidant, 3 parts of extreme pressure antiwear agent, and 0.6 part of rust inhibitor, and stir evenly.

[0067] (4) Grinding, homogenizing and...

Embodiment 3

[0084] In this embodiment, a preparation method of grease for a planetary reducer comprises the following steps:

[0085] (1) In parts by weight, take 20 parts of refined mineral oil, 26.6 parts of polyα-olefin, 3 parts of lauryl hydroxystearic acid and 0.58 parts of calcium hydroxide, mix them, heat up to 80°C for 1 hour, and then heat up to 100°C, Add 0.7 parts of lithium hydroxide monohydrate for saponification reaction for 2 hours; heat up to 200°C for refining, keep the temperature for 30 minutes;

[0086] (2) After adding 10 parts of refined mineral oil and 13.4 parts of polyα-olefin, quench the temperature to 175°C for thickening, keep the constant temperature for 10 minutes, and carry out dispersing and cyclic shearing;

[0087] (3) Lower the temperature of the mixture obtained in step (2) to 120°C, add 17 parts of polyisobutylene, 0.25 parts of antioxidant, 4 parts of extreme pressure antiwear agent, and 0.8 part of rust inhibitor, and stir evenly.

[0088] (4) Grind...

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Abstract

The invention relates to the technical field of lubricating grease, in particular to a method for preparing lubricating grease for a planetary reducer, comprising the following steps: (1) taking refined mineral oil, polyα-olefin, higher fatty acid and calcium hydroxide and mixing them for reaction, and then adding Saponification reaction of lithium hydroxide monohydrate; refining after heating; (2) After adding the remaining refined mineral oil and poly-alpha-olefin, quenching and cooling down, and dispersing and cyclic shearing. (3) adding polyisobutylene, extreme pressure antiwear agent, antioxidant, and rust inhibitor; (4) grinding, homogenizing, and degassing to obtain planetary reducer lubricating grease. The preparation method is simple and efficient, the operation process is easy to control, and it is beneficial to industrial production. The quality of the prepared lubricating grease product is stable. Lubricity ensures sufficient oil film thickness during gear operation, reduces friction surface wear, reduces noise and prolongs equipment life.

Description

technical field [0001] The invention relates to the technical field of lubricating grease, in particular to a preparation method of lubricating grease for a planetary reducer. Background technique [0002] The planetary reducer is a versatile industrial product that can reduce the speed of the motor while increasing the output torque. The planetary reducer can be used as a supporting component for lifting, excavation, transportation, construction and other industries. There are three main lubrication methods for planetary reducers: grease lubrication; splash lubrication (oil bath lubrication); forced lubrication (circulating oil injection lubrication). The lubrication method needs to be properly selected according to the conditions of use of the gear, and the basis for selection is mainly based on the peripheral speed (m / s) and rotational speed (rpm) of the gear. In order to maintain high-efficiency power transmission for gears, a stable oil film must be formed on the toot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10N30/06C10N40/04C10N30/08C10N50/10
CPCC10M169/044C10N2030/08C10N2030/06C10N2030/76C10N2040/04C10N2050/10
Inventor 马志宽
Owner 东莞市唯纳孚润滑科技有限公司
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