断路器传动机构的相似模型设计研究

摘要: 针对高压断路器传动机构具有加载力大、占地面积大、不利于在实验室开展可靠性实验研究的问题，提出采用相似理论对断路器传动机构的主触头机构进行相似模型设计，并对该机构的连杆开展动态应力相似研究。首先采用闭环矢量法、达朗贝尔原理对主触头机构进行运动学、动力学理论分析。在此基础上，用方程分析法结合量纲分析法得到了主触头机构原型与相似模型的运动学、动力学相关物理量间的相似关系，并用ADAMS验证了理论推导的正确性。通过ANSYS得到相似模型连杆与原主触头机构连杆之间的动态应力关系。
- 断路器 /
- 传动机构 /
- 相似理论 /
- 动态应力
Abstract: High voltage circuit breaker is not benefit for reliability experimental study due to large loading force and area, with similarity theory the similar model design method of the main contact of transmission mechanism is proposed, and the dynamic stress similarity of link is studied. The closed-loop vector and dynamic static method are used to analyze the kinematics and dynamics of the main contact mechanism. In order to obtain the similar relationship of kinematics and dynamics between the main contact mechanism and its own similar model, the equation analysis method and the dimensional analysis method are used and the correctness of the theoretical analysis is verified by ADAMS. With the finite element software ANSYS, the dynamic stress relationship of link between the prototype mechanism and the similar model is acquired.
- circuit breakers /
- transmission mechanism /
- similarity theory /
- dynamic stress

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