Heat-conducting lubricating grease for high-speed all-steel angular contact bearing and preparation method thereof

A technology for angular contact bearings and lubricating grease, which is applied in the field of lubricating grease, can solve the problems of high price, unsatisfactory thermal conductivity of lubricating grease, complicated production process, etc., achieve low preparation cost, simple and practical preparation method, and good storage stability Effect

Active Publication Date: 2012-10-03
国创(洛阳)轴承产业技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the technical solutions mentioned in the above patent documents, the grease thickener is mainly urea-based, the production process is complicated, and the thermal conductivity of the grease is not ideal.
[0005] For the grease used in high-speed all-steel angular contact bearings, the price of foreign high-speed grease is very expensive, which restricts the development of my country's high-speed machine tool industry. Therefore, there is an urgent need for a grease with smooth running, good thermal conductivity, low temperature rise, and low noise. , low vibration, no heavy metals, long life, can work smoothly at high speed and ultra high speed, can replace oil lubrication, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Take 5% by weight of 2,6-di-tert-butylphenol and add it to the beaker, take 10% by weight of nano-silicon magnesium nitride and add it to the beaker, and stir it in a magnetic stirrer for 30 minutes , carry out ultrasonic dispersion for 30 minutes, use the local high temperature, high pressure or strong shock wave generated during ultrasonic cavitation to greatly weaken the nano interaction energy between nanoparticles, effectively prevent the aggregation of nanoparticles and make them fully dispersed. Weigh 85% of the barium-based grease by mass, heat it to 70°C, keep the temperature for 10 minutes, add the thermal conductivity agent after ultrasonic dispersion into the barium-based grease, disperse it with an ultrasonic emulsifier for 30 minutes, and use a three-roll mill after cooling Grind three times to get grease.

Embodiment 2

[0027] Weigh 4% of 2,6-di-tert-butylphenol into the beaker by weight percentage, and weigh 6% of nanoparticles by weight percentage—nano-silicon carbide and nano-aluminum nitride, wherein nano-silicon carbide Add 3%, nano-aluminum nitride 3% into the beaker, stir in a magnetic stirrer for 25 minutes, and then carry out ultrasonic dispersion for 25 minutes. Using the local high temperature, high pressure or strong shock wave generated during ultrasonic cavitation, the nano-action between nanoparticles is greatly weakened It can effectively prevent the aggregation of nanoparticles and make them fully dispersed. Weigh 90% of the barium-based grease by mass, heat it to 75°C, keep the temperature for 10 minutes, add the heat-conducting agent after ultrasonic dispersion into the barium-based grease, disperse it with an ultrasonic emulsifier for 25 minutes, and use a three-roll mill after cooling Grind three times to get grease.

Embodiment 3

[0029] Take by weight 2% of 2,6-di-tert-butylphenol and add it to the beaker, take by weight 3% of nano-boron nitride and nano-silicon nitride, wherein, nano-boron nitride 2 %, 1% nano-silicon nitride, added to the beaker, stirred in a magnetic stirrer for 25 minutes, and then ultrasonically dispersed for 25 minutes, using the local high temperature, high pressure or strong shock wave generated during ultrasonic cavitation to greatly weaken the nano interaction between nanoparticles It can effectively prevent the aggregation of nanoparticles and make them fully dispersed. Weigh 95% of the barium-based grease by mass, heat it to 80°C, keep the temperature for 10 minutes, add the heat-conducting agent after ultrasonic dispersion into the barium-based grease, disperse it with an ultrasonic emulsifier for 30 minutes, and use a three-roll mill after cooling Grind three times to get grease.

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Abstract

The invention relates to heat-conducting lubricating grease for a high-speed all-steel angular contact bearing and a preparation method of the lubricating grease; the heat-conducting lubricating grease for the high-speed all-steel angular contact bearing is composed of the following raw materials by weight: 85-95% of barium-base lubricating grease, 3-10% of a heat-conducting agent and 2-5% of antioxidant; according to a technical proposal of the invention, the heat-conducting agents namely nano particles are added based on composite barium-base lubricating grease; so that the heat-conducting lubricating grease has a higher speed coefficient and a preferable heat-conducting performance; the bearing is characterized by low noise, low temperature rising, low vibration and longer service life; in addition, situations that speed coefficient of current domestic lubricating grease is short of an operation demand and the current domestic lubricating grease has poor heat conductivity are solved; an electric main shaft oil supply device is eliminated; noise when the high-speed all-steel angular contact bearing is operated is reduced; and temperature rising and vibration values are reduced.

Description

technical field [0001] The invention relates to a lubricating grease, in particular to a heat-conducting lubricating grease suitable for high-speed all-steel angular contact bearings, and also to a preparation method of the lubricating grease. Background technique [0002] With the development of CNC machine tools in the direction of high speed, high precision, high efficiency and environmental protection, it is required that the speed of the electric spindle of the machine tool is getting higher and higher, and the heat generated by the bearing becomes larger. If the heat is not dissipated in time, it will definitely cause thermal deformation of the bearing. , thus affecting the running accuracy and reliability of the electric spindle. High-speed bearings are the key components of electric spindles. Lubrication has an important impact on the fatigue life, friction, wear, temperature rise, vibration, etc. of rolling bearings. Without normal lubrication, the bearings cannot w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M177/00C10N40/02C10N50/10
Inventor 何强叶军牛青波李泽强张海鹏王琼王艳
Owner 国创(洛阳)轴承产业技术研究院有限公司
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