真空断路器弹簧机构凸轮优化与虚拟样机验证分析  

Optimization of Cam Structure of Vacuum Circuit Breaker Spring Actuator and Virtual Prototyping Validation Analysis

作　　者：刘晓明 梁澳 陈海 史红菲 李培源 史政凯 LIU Xiaoming;LIANG Ao;CHEN Hai;SHI Hongfei;LI Peiyuan;SHI Zhengkai(State Key Laboratory of Reliability and Intelligence of Electrical Equipment,Hebei University of Technology,School of Electrical Engineering,Tianjin 300401,China;Tianjin Yaohua Dingxin Intelligent Technology Co.,Ltd,Tianjin 300308,China)

机构地区：[1]省部共建电工装备可靠性与智能化国家重点实验室,河北工业大学电气工程学院,天津300401 [2]天津耀华鼎鑫智能科技有限公司,天津300308

出　　处：《真空科学与技术学报》2024年第10期878-884,共7页Chinese Journal of Vacuum Science and Technology

基　　金：国家自然科学基金面上项目(52177139)。

摘　　要：机构刚合速度特性是影响真空断路器合闸可靠性的关键因素,为减小机构动态冲击实现可靠关合,文章以10 kV交流真空断路器用弹簧操动机构为研究对象,以真空灭弧室动触头刚合运动特性为设计目标,采用响应面法对凸轮结构进行参数化设计。通过改变凸轮结构形面参数以及合闸簧预紧力,实现机构运动特性的优化。比对分析结果表明,在保证机构运动特性的前提下,选择以刚合速度时间特性优化凸轮轮廓可以提高机构合闸运动的可靠性。The initial closing speed characteristic of the actuator is a key factor affecting the closing reliability of the vacuum circuit breaker.In order to reduce the dynamic impact and achieve reliable closing performance,the spring operating actuator of a 10 kV AC vacuum circuit breaker is taken as the research object,the initial closing motion characteristics of the vacuum circuit breaker are determined as the design goal,and the response surface method is applied to optimize the cam structure parameters.The motion characteristics have been optimized by adjusting the cam structure parameters and the preload of the closing spring.The comparative analysis results indicate that under the premise of ensuring the motion characteristics of the actuator,the reliability of the closing operation can be improved by optimizing the cam with the initial closing speed.

关 键 词：真空断路器 弹簧操动机构 凸轮 合闸运动特性 响应面法 

分 类 号：TM561.2[电气工程—电器]