The utility model relates to a rectangular arc cavity type oil cushion for a dynamic and static thrust bearing. The utility model relates to a dynamic and static thrust bearing, in order to solve the problems of low bearing capacity, small application range and large space occupation of the existing large scale fan-shaped oil cushion. As is known to all, dynamic bearing has high bearing capacity, but dynamic pressure bearing can not guarantee dynamic pressure lubrication under the condition of starting or stopping, low speed, heavy load and reversing condition, and the stiffness of dynamic bearing is poor. Combining the advantages of dynamic and hydrostatic thrust bearings, a kind of rectangular arc cavity type oil cushion for dynamic and hydrostatic thrust bearings is designed. The oil pad body into a vertical oil chamber oil pad is a circular arc shape is a rectangle, overlooking at the geometric center of the oil pad symmetrically distributed in the oil chamber on the processing of a hole, both sides of the main body of the oil pad sector processing a return tank. The utility model is used for bearing the worktable of machine tools.
【技术实现步骤摘要】
一种动静压推力轴承矩形弧腔扇形油垫
:本技术涉及一种动静压推力轴承的油垫。
技术介绍
:随着现代工业的发展,旋转机械越来越向着精密、高速、重载方向发展。静压轴承无论在启动还是停车过程中磨损都较小,甚至不磨损,寿命长。而动压轴承在启动或者停车、低速重载以及换向条件下都不能保证形成动压润滑,并且动压轴承刚度较差。于是动静压轴承是近年来非常受重视的一种新型轴承结构,它综合了动压轴承和静压轴承综合优点,从低转速到极高转速都能保持良好的油膜刚度和良好的承载性能,其良好的承载能力取决于轴承结构,供油压力,旋转速度等条件。
技术实现思路
:本技术的目的在于设计一种动静压推力轴承矩形腔扇形油垫,解决大尺度扇形油垫承载范围小的缺点。本技术解决其技术问题所采用的技术方案是:一种动静压推力轴承矩形弧腔扇形油垫包括油垫主体,油垫主体为扇形,油垫的油腔垂直方向看是一圆弧形状,俯视是一长方形位于油垫几何中心对称分布,在油腔上加工有一个进油孔,油垫扇形主体两侧分别加工一个回油槽。本技术与现有扇形油垫相比较具有以下优点:将24个本技术油垫环形布置在静压推力轴承上,静压推力轴承安装在大尺度机床底座上, ...
【技术保护点】
一种动静压推力轴承矩形弧腔扇形油垫,其特征在于:将现有扇形腔扇形油垫改为动静压油膜主体为扇形结构,俯视看油腔为矩形,油腔截面为弧形结构,一进油管与油腔相连接,在扇形油垫两端分别有一个回油槽。
【技术特征摘要】
1.一种动静压推力轴承矩形弧腔扇形油垫,其特征在于:将现有扇形腔扇形油垫改为动静压油膜主体为扇形结构,俯视看油腔为矩形,油腔截面为弧形结构,一进油管与油腔相连接,在扇形油...
【专利技术属性】
技术研发人员:张艳芹,郭丽丽,刘国梁,孔祥滨,程海阔,
申请(专利权)人:哈尔滨理工大学,
类型:新型
国别省市:黑龙江,23
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