Magnetofluid cylindrical roller thrust bearing and processing technology thereof

Abstract

The invention relates to the technical field of roller bearings, and discloses a magnetofluid cylindrical roller thrust bearing. The magnetofluid cylindrical roller thrust bearing comprises a bearing,a roller retainer, a bezel and a static rack from top to bottom in sequence, and rollers are arranged in the middle of the roller retainer in sequence; the roller retainer and the rollers are all arranged in an annular rolling passage at the upper portion of the bezel together, magnetofluid is injected into the annular rolling passage of the bezel, and an annular gasket and an annular axial permanent magnet are arranged inside an annular groove in the lower portion of the bezel. The invention further discloses a processing technology of the magnetofluid cylindrical roller thrust bearing. According to the magnetofluid cylindrical roller thrust bearing and the processing technology thereof, the magnetofluid is adopted as a thrust bearing lubricant, the bearing running requirements for low friction, micro-vibration and high bearing capacity can be met, the bezel is provided with the annular rolling passage serving as the system for lubrication of the magnetofluid and the rollers, and thepermanent magnet is adopted as an external magnetic field applying source and arranged at the lower portion of the magnetofluid. The magnetofluid cylindrical roller thrust bearing is reasonable in structural design, and particularly suitable for precise instruments with strict operation conditions.

Description

technical field [0001] The invention relates to the technical field of roller bearings, in particular to a magnetic fluid thrust cylindrical roller bearing and its processing technology. Background technique [0002] Roller bearings are a type of rolling bearings and are one of the most widely used components in modern machinery. It relies on the rolling contact between the main elements to support the rotating parts. Roller bearings are now mostly standardized. Roller bearings have the advantages of small starting torque, high rotation accuracy, and convenient selection. Rolling bearings are divided into ball bearings and roller bearings according to rolling elements. [0003] Roller bearings rely on the rolling contact between the main parts to support the rotating parts. Different roller bearings can withstand different radial and axial forces. When selecting roller bearings, the selection should be made according to the specific working conditions. Roller bearings ...

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Problems solved by technology

[0004] Traditional bearing lubricants and their lubricating elements decay with time, and the uncontrollability of the decay process can easily cause the bearing to lock up, which may lead to serious consequences. The unpredictable service life of the bearing has gradually become an engineering hidden danger

[0005] The magnetic fluid lubricant in the case of an external magnetic field can significantly reduce the friction and wear in the mechanical system, and compared with the traditional lubrication bearing, the magnetic fluid lubricated bearing has low noise and high temperature resistance, and the magnetic fluid lubricating oil film also has A certain vibration-absorbing ability can also greatly reduce friction loss and surface wear, and even eliminate wear, which is very beneficial to improving the stability and running accuracy of the bearing. However, the magnetic field in the existing magnetic fluid thrust cylindrical roller bearing is difficult. The distribution control and the magnetic fluid cannot be evenly distributed inside the rolling bearing raceway, which seriously affects the engineering application of the magnetic fluid bearing. Therefore, further improvement is needed

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