塑壳断路器操作机构故障分析与关键轴的优化设计OA
Fault Analysis and Optimization Design of Key Shaft for Operating Mechanism of Molded Case Circuit Breaker
基于塑料外壳式断路器(以下简称塑壳断路器)的物理样机,针对其机械寿命试验时出现的操作机构中的跳扣轴弯曲失效故障进行了分析,给出了跳扣轴的理论计算过程,解释了跳扣轴弯曲失效的原因,并对常用的2种材料进行了筛选,给出了最优解.通过Ansys Workbench软件建立了跳扣轴的有限元模型,利用静态结构分析还原了原始设计跳扣轴的弯曲故障,并校核了优化后跳扣轴的强度.理论计算与仿真分析相结合的方法,可以为塑壳断路器操作机构和其他部件关键轴的自主设计和优化提供参考.
Based on the physical prototype of molded case circuit breaker,the bending failure of the buckle shaft in the operating mechanism is analyzed during the mechanical life test,the theoretical calculation process of the buckle shaft is given,the cause of the buckle shaft bending failure is explained,and the two commonly used materials are screened and the optimal solution is given.The finite element model of the buckle shaft is established by Ansys Workbench software,the bending fault of the buckle shaft is restored by static structure analysis,and the strength of the optimized buckle shaft is checked.The combination of theoretical calculation and simulation analysis can provide a reference for the independent design and optimization of the key shaft of the operating mechanism and other components of the molded case circuit breaker.
向小青
上海电器科学研究所(集团)有限公司,上海 200063
动力与电气工程
塑壳断路器操作机构跳扣轴Ansys Workbench强度
molded case circuit breaker(MCCB)operating mechanismbuckle shaftAnsys Workbenchstrength
《电器与能效管理技术》 2024 (009)
34-37,76 / 5
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