双层编织袋制外袋切刀动力学分析  

Dynamics analysis of external bag cutter for double-layer woven bag

作　　者：史常青[1] 邓援超[1] 高敏捷 皮莹 SHI Changqing;DENG Yuanchao;GAO Minjie;PI Ying(School of Mechanical Engineering,Hubei Univ.of Tech.,Wuhan 430068,China)

机构地区：[1]湖北工业大学机械工程学院,湖北武汉430068

出　　处：《湖北工业大学学报》2020年第1期5-9,共5页Journal of Hubei University of Technology

基　　金：国家科技部创新方法专项(2016IM020200-01)。

摘　　要：为了分析外袋切刀在偏心轮机构驱动下的运动与受力情况,对偏心轮机构中滑块(切刀部分)的运动规律进行运动学分析。基于达朗贝尔原理利用动静法求解切刀部分运动对机架产生的拉力,并对机架进行静力学分析,得到偏心轮机构中滑块的位移、速度、加速度的数学表达式,以及位移、速度、加速度随时间变化曲线,偏心轮机构中滑块在运动过程中对偏心轮机构产生的拉力F随着偏心轮转动的变化曲线。将所推导的加速度与力的变化情况运用到实际切刀机架上,静力学分析结果:切刀机架满足实际使用条件。In order to analyze the movement and force of external bag cutter driven by eccentric wheel mechanism.The motion of slider in eccentric mechanism being used to mathematical modeling and kinesiology analysis.Making use of dynamic-static method to solve the tension which comes from motion of cutter part on the rack,analyze the rack by statics.The mathematical expressions of the slider’s displacement,velocity and acceleration in the eccentric mechanism were obtained by analysis,and the time curves of displacement,velocity and acceleration,and the changing curves of the pulling force F which produced by the slider in the eccentric mechanism with the rotation of the eccentric wheel were also obtained.The deduced change of acceleration and force is applied to the actual cutter rack.To make Static Analysis of Cutter Frame.Cutter rack meets actual operating conditions.The kinematics and dynamics analysis of the slide block in the eccentric wheel mechanism is carried out and the results obtained are applied to the static analysis of the frame,which can provide reference for future designers to design integral fast cutter.

关 键 词：偏心轮机构 运动学分析 动静法 静力学分析 

分 类 号：TH112.1[机械工程—机械设计及理论]