STUDY ON PRECISION HYDROSTATIC JOURNAL BEARING WITH SELF-CONTROLLED RESTRICTOR

带自控限流器的精密静压径向轴承的研究

基本信息

批准号：
63460087
负责人：
ANNO Yoshiro
金额：
$ 3.2万
依托单位：
SCIENCE UNIVERSITY OF TOKYO
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1988
资助国家：
日本
起止时间：
1988 至 1989
项目状态：
已结题

项目摘要

In this work, a new type of self-controlled restrictor (called SCR below) is proposed to improve the stiffness in hydrostatic bearings. SCR makes it possible to easily get a very high stiffness (nearly infinite stiffness) in hydrostatic bearings by using the balance of pressure acting to a floating disk.First, SCR is applied to a hydrostatic thrust bearing and the static and dynamic characteristics of the thrust bearing is theoretically and experimentally investigated. Next, a new bearing structure to apply SCR to a hydrostatic journal bearing is proposed and the static characteristics of the hydrostatic journal bearing employing SCR is theoretically and experimentally discussed. As a result, the following conclusions are obtained.For the thrust bearing,(1).The proposed bearing can have a very high stiffness (nearly infinite stiffness) over a wide range of imposed load.(2).Bearing clearance in which a very high stiffness is obtained is determined only by the bearing dimensions and is not influenced by supply pressure. Therefore, the proposed bearing can maintain a very high stiffness even when the supply pressure is varied.(3).The proposed bearing shows a very rapid step response in the region where a very high stiffness is obtained and can be stably operated under the indented load.For the journal bearing,(1).The proposed journal bearing can a very high stiffness irrespective of the direction of the load over a wide range of imposed load.(2). The shaft center supported by the proposed journal bearing is almost stationary in the load range in which a very high stiffness is obtained even when the load direction is changed.

在这项工作中，提出了一种新型的自我控制限制器（称为SCR），以改善静水轴承的刚度。 SCR可以通过使用对浮动盘的压力平衡来轻松在静水轴承中轻松获得很高的刚度（几乎是无限的刚度）。首先，将SCR应用于液压推力轴承，并且在理论上是在推力轴承的静态和动态特征上进行的，并且是理论上和实验研究的。接下来，提出了一种新的轴承结构，以将SCR应用于静静力期刊轴承，并且在理论上和实验上讨论了使用SCR的静水杂志轴承的静态特征。结果，对于推力轴承，（1）。所提出的轴承可以在巨大的施加载荷上具有很高的刚度（几乎是无限的刚度）。（2）。仅获得非常高的刚度才能获得非常高的刚度，仅由轴承尺寸确定，并且不受供应压力的影响。因此，即使供应压力变化，提议的轴承也可以保持非常高的刚度。（3）。提议的轴承显示在获得非常高的刚度的区域非常快速的步骤响应，并且可以在凹入式载荷下稳定地操作。（1）轴承的轴承可以很高的刚度，即在较高的范围内，较高的范围（2范围）（2范围内）。由提议的期刊轴承支撑的轴中心在负载范围内几乎是固定的，即使更换负载方向，也获得了非常高的刚度。