Method for assembling mobile static pressure bearing

Abstract

The invention belongs to a machine work class and in particular relates to a method for assembling a hydro-hybrid bearing, which is characterized in that: a bearing shell is fixed on a base; two ends of an axis is propped by the finial of the axis; the finial is also fixed on the base; two bearing inner rings are machined and respectively sleeved between the axis and the shell; an oil circuit on each inner ring is switched on in order that a hydrostatic system between the inner ring and the axis can operate; the inner rings float on the axis; adhesive is input in the gap between the shell and the inner rings; after the adhesive is solidified, the axis and the shell are dismounted from the base, that is completing the assembly of the hydro-hybrid bearing. As the homogenization of hydrostatic oil film in the method for assembling the hydro-hybrid bearing, the isotropic gaps between two inner rings and the axis are uniform, thereby ensuring the coaxiality between two inner rings; as the two inner rings are respectively machined, the degree of symmetry of each oil sink can be ensured. The hydro-hybrid bearing assembled by the assembling method of the invention has high precision, a reasonable structure and small axis vibration.

Description

technical field [0001] The invention belongs to the category of mechanical manufacturing, in particular to an assembly method of a dynamic and static pressure bearing. Background technique [0002] The dynamic and static pressure bearing is a kind of bearing with good performance and long life. It is suitable for high-speed and ultra-high-speed support in principle, but the structure requires that the oil chambers at both ends of the support must be symmetrical, and the depth and width of the oil grooves in each oil chamber must be consistent. The centerlines of the supported ends must be coaxial. In actual manufacturing, due to the inevitable errors in manufacturing and assembly, the symmetry of each oil tank and the coaxiality of the two support ends are difficult to achieve high enough precision. When the bearing rotates at high speed or ultra-high speed, the rotating shaft will vibrate. The precision of the dynamic and static pressure bearing is reduced. Contents of t...

AI Technical Summary

Problems solved by technology

In actual manufacturing, due to the inevitable errors in manufacturing and assembly, the symmetry of each oil tank and the coaxiality of the two support ends are difficult to achieve high enough accuracy. When the bearing rotates at high speed or ultra-high speed, the rotating shaft will vibrate. Decreases the accuracy of dynamic and static pressure bearings

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