汽车侧门锁弹簧连杆应急快开机构及其性能分析  

Emergency Quick Releasing Mechanism with Spring Linkage and Performance Analysis of the Vehicle Door Latch

作　　者：张佳乐 杭鲁滨 钟传磊 黄晓波 刘哲[2] 陈勇[2] Zhang Jiale;Hang Lubin;Zhong Chuanlei;Huang Xiaobo;Liu Zhe;Chen Yong(School of Mechanical and Automotive Engineering,Shanghai University of Engineering Science,Shanghai 201620,China;Pan Asia Technical Automotive Center Co.,Ltd.,Shanghai 201201,China)

机构地区：[1]上海工程技术大学机械与汽车工程学院,上海201620 [2]上汽集团泛亚汽车技术中心有限公司,上海201201

出　　处：《机械传动》2024年第1期165-175,共11页Journal of Mechanical Transmission

基　　金：国家自然科学基金项目(51475050);上海汽车工业科技发展基金会项目(1617)。

摘　　要：针对某汽车侧门锁紧急情况下开启需求,提出了弹簧连杆应急快开机构,可实现小开启力和优先级高的开启操作。以奇异位形、棘轮棘爪接触状态和限位接触状态为划分依据,研究了不同工况下应急开启支链在运动过程中的多运动模式和变拓扑结构;经过静力学分析,得到了应急开启的必要条件;通过Adams软件仿真,验证了应急开启支链在车门锁内快速开启的可行性;用控制变量法对应急开启支链的开启时间和开启时间一致性进行研究,主弹簧刚度在5~7 N/mm内,预载荷在75~85 N范围内,主弹簧最大储能位置偏移小,满足开启时间的一致性。提出的弹簧连杆应急快开机构嵌入汽车侧门锁内,满足小开启力、高优先级和开启时间的要求,为应急快开支链设计及性能优化提供了重要理论依据。In view of the demand for quick releasing of the side door latch of an automobile in an emergency,an emergency quick releasing mechanism based on spring linkage is proposed.Based on the singular configurations,the contact states of ratchet and pawl and the limit contact states,the variable topology and multiple motion modes of the emergency releasing branch chain under different working conditions are studied.The necessary conditions for emergency releasing are obtained by the static analysis.The feasibility of quick releasing of emergency releasing branch chain in door latch is verified by the Adams software simulation.The control variable method is used to study the releasing time and the consistency of the releasing time of the emergency branch chain.When the stiffness of the main spring is within 5-7 N/mm and the preload is within 75-85 N,the maximum energy storage position of the main spring has a small offset,which meets the consistency of the releasing time.The emergency quick releasing mechanism based on the spring linkage is embedded in the side door lock of the car,meeting the requirements of small releasing force,high priority and releasing time,and providing important theoretical basis and practical value for the design and performance optimization of emergency quick releasing branch chain.

关 键 词：汽车侧门锁 应急快开机构 机构主弹簧 奇异位形 最大储能位置 

分 类 号：TH112[机械工程—机械设计及理论] U463.834[机械工程—车辆工程]