Aqueous suspension bearings

Abstract

The present invention relates to bearing, comprising two sections of water hydraulic stations and suspension bearing unit, wherein, the suspension bearing unit employs water as suspension medium, the suspension bearing unit contains principal axis, bearing sleeve, bearing wrap, wherein, a water pressure cavity formed between the principal axis and the bearing sleeve, and upon the bearing wrap is arranged with pressure water entrance, upon the bearing sleeve is arranged with aqueous medium channel to communicate with the pressure water entrance, inner side of the bearing sleeve is provided with at least three groups of aqueous medium pressure deep cavity and pressure shallow cavity distributed centering, each group of aqueous medium pressure deep cavity is also provided with inlet throttle ostiole. Because of using shuiji as suspension bearing medium cau effectively reduce resistance of suspension bearing liquid membrane, additionally the shuiji has good heat radiating effect, which can effectively resolve the heat reaidting problem of ultra-high speed suspension bearing and common suspension bearing. The aqueous suspension bearing can widely used in rotating position of precision machine tools principal axis and precision detection device, and principal axis with ultra-high speed high precision request.

Description

technical field [0001] The invention relates to a bearing widely used in various precision machine tools and testing equipment in the machinery manufacturing industry. Background technique [0002] As an important mechanical basic part for the supporting and maintenance of various electromechanical products, bearings have the characteristics of small friction, easy start-up, rapid speed-up, compact structure, high level of "three modernizations" (standardization, serialization, and generalization), and adapt to various modern The mechanical requirements of the working performance, long service life and easy maintenance and other characteristics, its performance, level and quality have a direct impact on the accuracy and performance of the main engine, and are widely used in various fields of the national economy. [0003] In 1772, C. Wallow of England designed and manufactured ball bearings, and installed them on the mail car for trial use. In 1794, P. Worth of England obta...

AI Technical Summary

Problems solved by technology

[0005] Traditional rolling element bearings can meet the requirements of high speed, but the accuracy of the spindle unit is difficult to meet the high precision requirements, and with the increase in use, the rolling elements will be worn and the accuracy of the spindle will decrease, which cannot meet the use of high-speed grinding machines Requirements, the current domestic grinding machine spindle system generally does not use the form of rolling bearings

[0006] Traditional hydrostatic bearings have been widely used on the spindles of precision machine tools such as grinding machines, and can meet the requirements of general speed and precision. However, the spindle oil with a certain pressure provided by the hydraulic station keeps the bearings in working condition. , the spindle oil has a certain viscosity, and it generates heat seriously when working under pressure, so that the working speed of the spindle is greatly restricted, which cannot meet the high-speed and high-precision requirements of the grinding machine

Images