桃子去核机合模机构的改进  

The Clamping Mechanism's Improvement of the Peach Pitting Machine

作　　者：吕鲲[1] 朱朝阳[1] 吕鹏辉[1] 王亚磊 

机构地区：[1]河南理工大学机械与动力工程学院,河南焦作454000

出　　处：《机械设计与制造》2017年第10期179-182,共4页Machinery Design & Manufacture

基　　金：国家科技支撑计划项目(子课题)(2015BAF20B02)

摘　　要：桃子去核机是罐头行业普遍使用的机械设备,目前使用的机器结构复杂,制造困难,且有较大的运动冲击,制约了其应用。研究的基本思路是利用步进电机控制的曲柄滑块机构代替复杂的三相异步电机驱动的凸轮连杆机构,从而对原有主传动机构进行简化改进。利用组合机构原理和反求技术,确定原有合模机构的主要参数,并推导出了位移的计算公式。根据行程要求设计了曲柄滑块机构并对其进行运动分析。利用MATLAB强大的计算和作图功能,绘制出了改造前后合模机构的位移、速度、加速度的函数线图。对比分析结果表明,简化后的机构在满足行程要求的前提下,能够准确实现预期功能。The peach pitting machine is commonly used in the canned-fruit industry. Its application of the currently-used machine is restricted because of its complex structure, manufacturing difficulty and serious motion impact. The basic research idea is to replace the complex cam--linkage mechanism driven by three phase asynchronous motors with slider-crank mechanism controlled by stepper motor, and then improve and simplify the main drive mechanism of the peach pitting machine. By applying the principle of mechanism combination and the reverse technology, the main sizes of the clamping mechanism are obtained and the calculation formula of displacement is deduced. According to the stroke requirement, the slider-crank mechanism is designed and its kinematical performances are analyzed. With the help of the calculation and diagram function in the Matlab, the displacement, velocity and acceleration diagram are drawn before and after the transformation. The results of analysis and comparison indicate that the simplified mechanism can accurately realize the expected function under the premise of meeting the stroke requirement.

关 键 词：桃子去核机 机构优化 运动分析 MATLAB 复数矢量法 合模机构 

分 类 号：TH16[机械工程—机械制造及自动化] TH122