补偿台偏心轮机构特性研究及优化  

Research and Optimization of Eccentricity Mechanism for Stage Compensating Elevator

作　　者：尹海鹏 石志孝[1,3] 金雅融 YIN Hai-peng;SHI Zhi-xiao;JIN Ya-rong(Gansu Gongda Stage Technology&Engineering Co.,Ltd.,Lanzhou Gansu 730050,China;School of Mechanical and Electrical Engineering,Lanzhou University of Technology,Lanzhou Gansu 730050,China;Cultural Industry Equipment Engineering Research Center,Lanzhou University of Technology,Lanzhou Gansu 730050,China)

机构地区：[1]甘肃工大舞台技术工程有限公司,甘肃兰州730050 [2]兰州理工大学机电工程学院,甘肃兰州730050 [3]甘肃演艺装备工程研究中心,甘肃兰州730050

出　　处：《演艺科技》2021年第7期33-38,共6页Entertainment Technology

摘　　要：偏心轮机构因响应快、结构紧凑、行程准确而广泛应用于演艺装备行业中的侧舞台补偿台,目前行业内设计的补偿台偏心轮普遍存在功率耗损或不足、安装困难、运行速度过大等问题。针对上述不足,首先理论分析了偏心轮机构运动周期内的运动学特性和力学特性,研究表明:偏向轮角位移θ=60°时承重轮推力最大,角位移θ=80°时承重轮和偏心轮法向接触力最大,角位移θ=90°时偏心轮机构的压力角最大,角位移θ=110°时承重轮运行速度和电机功率损耗最大。依据力学分析结论,进一步创建了接触应力最大时的优化模型并进行多目标优化分析,给出不同强度安全系数下的最优Pareto解,研究结论为工程实践提供重要的理论依据。Eccentric gear is widely used in side stage compensating elevator in entertainment equipment because of its fast response,compact structure and accurate stroke.At present,the eccentric wheel for compensating elevator in entertainment equipment generally has problems such as serious motor power loss or insufficient motor power,difficult installation process,and overspeed running.In view of the above deficiencies,first of all,the kinematics and mechanics characteristics of the Eccentric gear in the period of motion are analyzed theoretically,and the research shows that when the angular displacement of the eccentric wheelθ=60°,the bearing wheel has the maximum thrust;Whenθ=80°,the normal contact force between the bearing wheel and the eccentric wheel is the maximum;Whenθ=90°,the pressure angle of the eccentric mechanism is the maximum;Whenθ=110°,the running speed of bearing wheel and motor power loss are the maximum.According to the conclusion of mechanical analysis,the optimization model of the maximum contact stress is further established and the multi-objective optimization analysis is carried out.The optimal Pareto solution under different strength safety factors is given.The research conclusion provides an important theoretical basis for practice.

关 键 词：偏心轮机构 演艺装备 补偿台 运动学特性 力学特性 多目标优化 

分 类 号：TH112[机械工程—机械设计及理论]