Improvement method of eccentric sleeve of high-speed precision roll grinding head and its eccentric sleeve

Abstract

The invention discloses a method for improving the eccentric sleeve of a high-speed precise roller grinding head and the eccentric sleeve of the high-speed precise roller grinding head. The method comprises the following steps: oil guiding grooves are formed in the eccentric sleeve, oil fluid entering the eccentric sleeve from flow controllers is introduced in hybrid bearings and a hydrostatic bearing cavities to provide lubricating oil for the bearings, and the eccentric sleeve rotates to change the central lines of the hybrid bearings so as to change the central position of the main shaft of a roll grinder and realize central convex and central concave grinding. Therefore, the rotation amount of the eccentric sleeve is changed to change the grinding concave-convex amount of a grinding wheel. With adoption of the method, internal guidance of lubricating oil can be better realized, the situation that one flow controller controls one oil inlet of the bearing is realized, and the oil inlet pressure can be better controlled; loss of oil pressure during flow diversion can be reduced without using an external flow guide tube; in addition, hybrid bearing adjusting arc chutes are formed in the eccentric sleeve, and bearing baffle plates can be adjusted through adjusting bearing end covers to adjust the bearing pressure.

Description

technical field [0001] The invention relates to metal cutting equipment, in particular to an improvement method for an eccentric sleeve of a high-speed precision roll grinding head and the eccentric sleeve. Background technique [0002] Existing roll grinders have various structures of eccentric sleeves, and most of the medium and high mechanisms use eccentric sleeves to realize the medium and high (concave) amount of grinding wheel grinding, but most of the eccentric sleeves used have too many oil guide grooves, and the processing cost is very high; Moreover, the dynamic and static pressure bearings of the eccentric sleeve of the existing roll grinder cannot be adjusted, and innovative improvements are still required. Contents of the invention [0003] The purpose of the present invention is to provide an improved method for the eccentric sleeve of a high-speed precision roll grinding head and the eccentric sleeve, so as to overcome the deficiencies in the prior art. [...

AI Technical Summary

Problems solved by technology

[0002] Existing roll grinders have various structures of eccentric sleeves, and most of the medium and high mechanisms use eccentric sleeves to realize the medium and high (concave) amount of grinding wheel grinding, but most of the eccentric sleeves used have too many oil guide grooves, and the processing cost is very high; Moreover, the dynamic and static pressure bearings of the eccentric sleeve of the existing roll grinder cannot be adjusted, and innovative improvements are still needed

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