摘要
实践证明磨损是底枢摩擦副失效的主要原因。为了研究人字闸门底枢摩擦副的磨损机理及其影响行为,以三峡闸门为研究对象,深入分析其底枢的受力及应力分布情况,通过计算闸门运行时的各项力矩确定启闭方案,以相似理论作为理论计算依据,完成了试验台的基本结构尺寸设计;通过启闭液压缸、加载液压缸和摩擦阻尼装置模拟实际闸门的启闭、实际闸门的重量以及水压对闸门的影响;通过测定液压缸两端的油压能够较好地测量闸门底枢的实际摩擦系数。通过测控系统,该试验台能在设定参数下完成底枢摩擦副的往复摩擦实验,从而为人字闸门底枢的设计和维护提供了试验分析数据。
Practice shows that the wear is the main reason for the failure of bottom hinge friction pair.In order to study the wear mechanism and influence behavior of bottom hinge friction pair of miter gate,this paper has taken the three gorges lock as the research object,analyzing the force and stress distribution of bottom hinge deeply,and confirming the open-close scheme through calculating each torque of gate,and using similar theory as the theoretical basis,than the basic structure and size’s design of the test stand has been completed. And through the open-close hydraulic cylinder and loading hydraulic cylinder and friction damping device to simulate the actual gate opening and closing,the weight of the actual gate and the influence of water pressure on the gate;By measuring the hydraulic oil pressure at the ends of the cylinder to easily measure the actual friction coefficient of the bottom hinge of gate.Through the measurement and control system,the test stand has completed bottom hinge friction pair’s reciprocating friction experiment under the setting parameters,thus the experimental analysis data were provided for the bottom hinge of miter gate’s design and maintenance.
作者
徐翔
袁泽坤
赵新泽
郭文涛
XU Xiang;YUAN Ze-kun;ZHAO Xin-ze;GUO Wen-tao(College of Mechanical & Power Engineering,China Three Gorges University,Hubei Yichang 443002,China)
出处
《机械设计与制造》
北大核心
2019年第5期47-51,共5页
Machinery Design & Manufacture
基金
湖北省技术创新专项(重大项目)(闸门底枢摩擦学设计基础及设计系统开发(2016AAA076)
水电机械设备设计与维护湖北省重点实验室(三峡大学)开放基金(水工闸门底部清淤技术研究及配套装置设计(2017KJX01)
滚动轴承接触副界面摩擦与润滑研究(2017KJX06)
关键词
人字闸门
底枢
摩擦副
相似理论
液压系统
Miter Gate
Bottom Hinge
Friction Pair
Similarity Theory
Hydraulic System
