ISO 12131-1:2020 滑动轴承 稳定状态下的水动力滑动止推垫轴承 第1部分：冲力垫轴承评估

标准编号：ISO 12131-1:2020

中文名称：滑动轴承 稳定状态下的水动力滑动止推垫轴承 第1部分：冲力垫轴承评估

英文名称：Plain bearings — Hydrodynamic plain thrust pad bearings under steady-state conditions — Part 1: Calculation of thrust pad bearings

发布日期：2020-07

标准范围

本文件的目的是通过应用油润滑流体动力滑动轴承的计算方法，实现运行可靠的滑动轴承设计，推力环和滑动轴承表面通过润滑剂膜完全分离[1]。本文件适用于具有结合的楔块和支撑表面的推力滑动轴承，所述楔块表面长度lwed与一个衬垫L的长度的任何比率。它处理值lwed/L=0,75，因为该值代表最佳比率[2]。一个垫的宽度与长度的比率可以在B/L=0.5至2的范围内变化。当雷诺方程的数值解已知时，本文件中描述的计算方法可用于其他结合间隙形状，例如具有集成挡板的推力滑动轴承。该计算方法用于设计和优化滑动轴承，例如用于风扇、齿轮单元、泵、涡轮机、电机、压缩机和机床。它仅限于稳态条件，即在连续运行条件下，所有旋转部件的负载和角速度都是恒定的。不包括动态操作条件。

The aim of this document is to achieve designs of plain bearings that are reliable in operation, by the application of a calculation method for oil-lubricated hydrodynamic plain bearings with complete separation of the thrust collar and plain bearing surfaces by a film of lubricant^[1].This document applies to plain thrust bearings with incorporated wedge and supporting surfaces having any ratio of wedge surface length lwed to length of one pad L. It deals with the value lwed/L = 0,75 as this value represents the optimum ratio^[2]. The ratio of width to length of one pad can be varied in the range B/L = 0,5 to 2.The calculation method described in this document can be used for other incorporated gap shapes, e.g. plain thrust bearings with integrated baffle, when for these types the numerical solutions of Reynolds equation are known.The calculation method serves for designing and optimizing plain thrust bearings e.g. for fans, gear units, pumps, turbines, electrical machines, compressors and machine tools. It is limited to steady-state conditions, i.e. load and angular speed of all rotating parts are constant under continuous operating conditions. Dynamic operating conditions are not included.

标准预览图