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Low-noise polyurea lubricating grease and preparation method thereof

A polyurea lubricating grease and low-noise technology, which is applied in the field of lubricating grease, can solve the problems of unsatisfactory noise reduction performance of lubricating grease and high noise of low-vibration bearings, and achieve the effect of good vibration value, stable vibration value and reduced noise value

Inactive Publication Date: 2016-03-23
HUIZHOU RES INST OF SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the noise reduction performance of the lubricating grease recorded in these two patents is not ideal, and there are problems such as excessive noise of the motors of office automation equipment and household appliances and low-vibration bearings.

Method used

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  • Low-noise polyurea lubricating grease and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4

[0022] According to the parts by weight in Table 1, weigh the required amount of base oil and polyurea thickener, heat and stir to 150-175°C, heat at a constant temperature for 120-240 minutes, stop heating and cool at room temperature to 140°C, add the hydroxyl compound, Stir and cool to 60-80°C, filter the grease with a sieve, continue to cool to room temperature, and grind it three times with a three-roller machine to obtain low-noise polyurea grease. The type and amount of each component in the grease are shown in Table 1.

[0023] Table 1

[0024]

Embodiment 5

[0026] [Examples 1-4] were tested for cone penetration and bearing vibration, and the test results are shown in Table 2.

[0027] For two commercially available lubricating greases commonly used in home appliances or office equipment (one domestic brand and one foreign brand): domestic brand grease 1 and foreign brand grease 2, bearing vibration value, cone penetration (GB / T269- 91) test, the test results are shown in Table 2.

[0028] Table 2

[0029] Example

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PUM

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Abstract

The invention discloses low-noise polyurea lubricating grease and a preparation method thereof. The low-noise polyurea lubricating grease is prepared from 85-90 parts by weight of base oil, 8-15 parts by weight of polyurea thickening agent and 1-4 parts by weight of hydroxyl compound. The polyurea lubricating grease prepared by the method disclosed by the invention has a better and stable vibration value, thereby reducing noise values of motors and low vibration bearings of office automation equipment and household appliances. The product has remarkable influence on a noise reduction effect.

Description

technical field [0001] The invention relates to the technical field of lubricating grease, in particular to a low-noise polyurea lubricating grease and a preparation method thereof. Background technique [0002] In modern manufacturing, including motors of office automation equipment and household appliances, low-noise and low-vibration ball bearings are used, and new military equipment also has higher requirements for bearing noise. Most of these bearings are small diameter, sealed disposable deep groove ball bearings and almost all are grease lubricated. [0003] At home and abroad, the research on low-noise grease is very important, and there are many sales and applications of low-noise grease products. The well-known low-noise grease products include NSK, SKF, ECCO, KLUBER, LUBCON, Japan Synergy and Sanyo, etc. company's products. There is still a relatively large gap between domestic low-noise grease products and international well-known brands, mainly due to the nois...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/06C10N50/10
CPCC10M169/06C10M2215/121C10N2030/76C10N2050/10
Inventor 纪红兵曾晖刘涛晏金灿
Owner HUIZHOU RES INST OF SUN YAT SEN UNIV
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