间隙密封旋转接头流场特性仿真分析

发布时间：2018-01-02 10:11

本文关键词：间隙密封旋转接头流场特性仿真分析　出处：《机械设计与制造》2016年10期 　论文类型：期刊论文

更多相关文章： 旋转接头 间隙密封 泄漏量 均压槽

【摘要】：间隙密封旋转接头在高速旋转过程中,密封间隙大小容易受到外界干扰而变化,从而引起接头体和芯轴的磨损以及泄漏量加剧。通过采用CFD技术对内部环形间隙进行仿真,分析了均压槽分布在芯轴表面和接头体内壁面两种不同形式以及芯轴转速对泄漏量的影响,得出了间隙流场内流体压力、速度分布和泄油口的流量。结果显示:间隙流场的压力呈线性分布;均压槽两种不同分布形式对旋转接头的泄漏量无影响,均压槽分布在芯轴表面具有更好的抗磨损作用;旋转接头的泄漏量随着转速的提高而减小。
[Abstract]:In the process of high speed rotation, the size of seal clearance is easily changed by external interference. Thus, the wear and leakage of the joint body and core shaft are increased. The internal annular clearance is simulated by using CFD technology. The influence of core shaft speed on leakage is analyzed, and the fluid pressure in interstitial flow field is obtained by analyzing the distribution of equal pressure slot on the core shaft surface and the inner wall surface of the joint, as well as the effect of the core shaft speed on the leakage rate. The velocity distribution and the flow rate of the outlet show that the pressure of the gap flow field is linearly distributed; There is no effect on the leakage rate of the rotary joint by two different distribution forms of the equal pressure slot, and the distribution of the uniform pressure groove on the surface of the core shaft has a better anti-wear effect. The leakage of rotary joint decreases with the increase of rotating speed.
【作者单位】：武汉科技大学机械自动化学院;
【基金】：国家自然科学基金资助项目(51475338)
【分类号】：TH136
【正文快照】： 1引言旋转接头是一种在360°旋转过程中输送液体或气体介质的密闭连接器,并作为专用机床、深孔钻机、板材卷曲机等机械设备上的关键部件被广泛使用。为满足现代机械设备高速、高压的使用条件,通常旋转接头采用间隙密封技术。间隙密封是一种简单而应用广泛的密封方法,它是依靠

【相似文献】