摘要
转套式配流系统是一种新型的配流系统,克服了传统阀式配流系统体积大、结构松散、容积效率低等缺点,转套内凸轮槽型线直接影响转套式配流系统的运动学特性。本文通过分析正弦凸轮槽型线不自锁条件,提出四种新型凸轮槽型线,并对四种型线下的转套和传动销进行运动学分析。结果表明:线性凸轮槽型线转套的角速度和角加速度的幅值最小,分别为203.1 rad/s、4.961×10^4rad/s^2,一个周期内存在两次冲击;线性凸轮槽型线下传动销径向速度和加速度最小,分别为-0.387 m/s、115.0 m/s^2,运动过程中不存在冲击。因此,线性凸轮槽型线为最佳选择。
Rotating sleeve distributing-flow system is a new-type distributing-flow system,overcoming the shortcomings of traditional valve-type flow distribution systems such as large volume,loose structure,and low volumetric efficiency.The cam groove profile of the rotating sleeve directly affects the kinematics characteristics of rotating sleeve distributing-flow system.In this paper,by analyzing the self-locking characteristics of the sinusoidal cam groove profile,four new types of cam groove profiles are proposed,the kinematics analysis of rotating sleeve and drive pins under the four cam groove is performed.The results showed that:the amplitude of the angular velocity and angular acceleration of the line cam groove profile rotating sleeve is the smallest,which is 203.1 rad/s and 4.961×10^4 rad/s^2,respectively,and there are two impacts in one cycle;The radial speed and acceleration of drive pin under line cam groove profile is the smallest,which is-0.387 m/s and 115.0 m/s^2,respectively,and there is no impact during cycles.So,the line cam groove profile is the best choice.
作者
程前昌
张洪信
赵清海
张延君
姜晓天
CHENG QianChang;ZHANG HongXin;ZHAO QingHai;ZHANG YanJun;JIANG XiaoTian(Mechanical and Electronic Engineering College,Qingdao University,Qingdao 266071,China)
出处
《机械强度》
CAS
CSCD
北大核心
2020年第1期154-160,共7页
Journal of Mechanical Strength
基金
国家自然科学基金项目(51575286)
山东省自然科学基金项目(2014ZRB01503)资助。
关键词
凸轮槽型线
自锁
转套
配流系统
Cam groove profile
Self-locking
Rotating-sleeve
Distributing-flow system
作者简介
程前昌,男,1994年8月生,山东聊城人,汉族,青岛大学硕士研究生。主要从事车辆新型动力传动及其电子化;通信作者:张洪信,男,1969年6月生,山东潍坊人,汉族,青岛大学教授,博士。主要从事车辆新型动力传动技术研究。
