Novel hydrostatic bearing

Abstract

The invention discloses a novel hydrostatic bearing, and aims to overcome the defects that a radial hydrostatic bearing and an axial hydrostatic bearing are difficult to combine with an existing hydrostatic bearing, and response frequency and response speed are difficult to consider at the same time. The bearing comprises a bearing body, a bearing ring, a throttler and a bearing cover, the throttler comprises a throttling cover and a throttling body, an oil inlet is formed between the throttling cover and the throttling body, an oil outlet is formed in the throttling body, and the throttler is provided with a fixed throttling part and a variable throttling part. The bearing has the advantages of a fixed throttling device and a variable throttling device, a radial hydrostatic bearing and an axial hydrostatic bearing are combined, and the precision of the bearing is improved under the same machining and manufacturing conditions.

Description

technical field [0001] The invention relates to the field of precision machining, more specifically, it relates to a new type of hydrostatic bearing. Background technique [0002] With the continuous improvement of machine tools' requirements for high precision, high efficiency and surface roughness processing, the importance of static pressure dynamic and static pressure technology is increasing day by day. Good performance, high rotation accuracy / running accuracy, good adaptability, etc., can meet high precision and high efficiency, making hydrostatic bearings, hydrostatic guide rails, and hydrostatic screw screws more and more developed and applied, especially in large machine tools, Large-scale machine tools and precision instruments are widely used. Hydrostatic bearings are divided into radial hydrostatic bearings and axial hydrostatic bearings, which bear radial force and axial force (machine tool load) respectively. For small-sized hydrostatic bearings, radial beari...

AI Technical Summary

Problems solved by technology

Due to the slow response speed of the fixed throttle, and the frequency response problem of the variable throttle, the range of throttling is limited to a certain extent.

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