油菜基质块苗移栽机传动机构动力学仿真分析  

Dynamic Simulation Analysis of the Transmission Mechanism of Rape Matrix Seedling Transplanter

作　　者：胡清明[1,2,3] 杨铭 孙丹丹 关彦齐 王俊峰 郭建华 Hu Qingming;Yang Ming;Sun Dandan;Guan Yanqi;Wang Junfeng;Guo Jianhua(School of Mechanical and Electrical Engineering,Qiqihar University,Qiqihar 161006,China;Qiqihar Heavy CNC Equipment Co.,Ltd.,Qiqihar 161003,China;Heilongjiang Province Collaborative Innovation Center for Intelligent Manufacturing Equipment Industrialization,Qiqihar University,Qiqihar 161006,China)

机构地区：[1]齐齐哈尔大学机电工程学院,黑龙江齐齐哈尔161006 [2]齐重数控装备股份有限公司,黑龙江齐齐哈尔161003 [3]齐齐哈尔大学黑龙江省智能制造装备产业化协同创新中心,黑龙江齐齐哈尔161006

出　　处：《机械传动》2023年第7期113-118,共6页Journal of Mechanical Transmission

基　　金：黑龙江省普通高等学校青年创新人才培养计划(UNPYSCT-2018104);中央引导地方科技发展专项项目(SBZY2021E043);黑龙江省省属本科高校基本科研业务费科研项目(135409604);黑龙江省教育厅高等教育教学改革研究项目(SJGY20190715);齐齐哈尔大学研究生创新科研项目(YJSCX2021084);齐齐哈尔大学学位与研究生教育教学改革研究项目(JGXM_QUG_2021007)。

摘　　要：同步带传动是移栽机传动机构的主要传动形式。基于传统梯形齿形的移栽机传动机构在分苗过程中稳定性较低,易产生跳齿、脱齿不良现象。采用刚柔耦合多体动力学仿真方法,建立分苗装置传动机构虚拟样机模型,对同步带周期性动载应力变化规律、横向振动及传动误差进行了动力学特性分析。结果表明,高齿圆弧齿同步带(Straight-Toothed Synchronous Belt,STSB)相较于高转矩(High Torque Drive,HTD)圆弧齿及传统梯形齿同步带,应力分布更均匀,最小应力值为59.16 N/mm2,横向振动幅值最小为33 mm,传动误差小,传动平稳。研究可为移栽机传动机构动力学仿真与齿形优化提供参考。The synchronous belt drive is the main drive form of the driving mechanism of the transplanter.Based on the low stability of the traditional trapezoidal tooth-shaped driving mechanism of the transplanter during seedling separation,it is easy to cause bad tooth skipping and tooth disengaging.A virtual prototype model of the seedling separation device driving mechanism is established by the rigid-flexible coupling multi-body dynamic simulation method to analyze the dynamic characteristics of periodic dynamic load stress variation,transverse vibration,and transmission error of the synchronous belt.The results show that the stress distribution of the straight-toothed synchronous belt(STSB)is more uniform than that of the high torque drive(HTD)and the traditional trapezoidal toothed synchronous belt.The minimum stress value is 59.16 N/mm2,and the minimum amplitude of transverse vibration is 33 mm.The transmission error is small,and the transmission is smooth.It provides reference for dynamic simulation and tooth profile optimization of the driving mechanism of the transplanter.

关 键 词：动力学特性 齿形齿廓 STSB 

分 类 号：S223.9[农业科学—农业机械化工程]