Preparation of hydrophobic magnetic lubricating grease for hydrophobic magnetic lubricating bearing

Abstract

The present invention discloses a preparation of dewatering magnetic grease lubricant used in dewatering magnetic lubrication bearing. Firstly, nano-meter magnetic liquid (magnetic fluid) which composed of nano-meter magnetic powder and base liquid is prepared, the nano-meter powder of magnetic fluid adopts soft magnetic particle powder Fe3O4 (ferroferric oxide) or MnZnFe2O4 (manganese-zinc ferrite), the base liquid of the magnetic fluid is dewatering magnetic lubricant, then the thickening agent is added in and mixed evenly to get the grease lubricant with both dewatering property and magnetic property, on the basis that the existing bearing structure is not changed, the dewatering magnetic grease lubricant is filled into the inner cavity of the bearing position in magnetic field, under the action of the magnetic field force, the grease lubricant is enabled to resist the washing of water from the outside, and can be kept inside the bearing without flowing to the outside. The grease lubricant with dewatering and magnetic properties is used to replace the current common universal grease lubricant, thus being able to guarantee the lubrication of the rolling and sliding bearing, and greatly prolong the service life of the bearing. The production cost of the present invention is low, the effect is good and the practicality is wide.

Description

[0001] This application is a divisional application of the application of "Hydrophobic Magnetic Lubricated Bearing and Preparation of Hydrophobic Magnetic Grease", the filing date is: 2006.3.28; the application number is: 200610039516.2. technical field [0002] The invention relates to the preparation of hydrophobic magnetic lubricating grease for hydrophobic magnetic lubricating bearings, and is especially suitable for lubricating bearings of open-air machinery, mining machinery, large-scale equipment, ships, oil drilling rigs, and field weaponry. Background technique [0003] Bearings are the most commonly used parts in machine reducing equipment, and their usage is very large. Because the bearings are affected by the speed, temperature and environment, the grease in the bearings is easy to lose under the action of external force, resulting in damage to the bearings. According to statistics, the annual consumption of bearings in the country reaches hundreds of millions of ...

AI Technical Summary

Problems solved by technology

This is because the lubricating grease will quickly deteriorate and lose under the washing of water, resulting in the lack of bearing lubrication and damage