基于坐标变换的双角度定量调整机构建模方法  

Modeling method of dual-angle quantitative adjustment mechanism based on coordinate transformation

作　　者：郭慧 齐江涛[1,2] 刘慧力 王刚[2] 赵佳乐 GUO Hui;QI Jiangtao;LIU Huili;WANG Gang;ZHAO Jiale(Key Laboratory of Bionics Engineering,Ministry of Education,Jilin University,Changchun 130022,China;College of Biological and Agricultural Engineering,Jilin University,Changchun 130022,China)

机构地区：[1]吉林大学工程仿生教育部重点实验室,吉林长春130022 [2]吉林大学生物与农业工程学院,吉林长春130022

出　　处：《实验技术与管理》2021年第6期107-111,共5页Experimental Technology and Management

基　　金：国家重点研发计划项目(2018YFD0300207-5);吉林大学教改项目(VE2015044,2015QNYB050);国家自然科学基金项目(51705194;52075215)。

摘　　要：针对现有双角度定量调整机构调整精度低、操作复杂的现状,该文基于坐标变换准则提出了一种双角度定量调整机构建模方法。以该方法为依据,对双圆盘覆土器张角和倾角定量调整机构展开设计,通过调整螺栓对绕调整轴的卡孔在初始和调整后两个状态的位置进行定位,以实现张角和倾角的定量调整。通过CATIA软件对所设计的机构进行三维建模以验证机构的调整精度,结果显示张角和倾角调整后的相对误差分别为0.065%和0.01%,该结果也证实了采用本文建模方法所设计的调整机构具有调整精度高、操作简单的特点。Due to the low adjustment accuracy and complicated operation of the existing dual-angle adjustment mechanism, this paper proposes a modeling method of dual-angle quantitative adjustment mechanism based on coordinate transformation criterion. On the basis of the modeling method, an opening-angle and inclination-angle quantitative adjustment mechanism of double-disc soil covering device is built. Through adjustment card fixed on the adjustment shafts by adjustment bolt to achieve quantitative adjustment of the opening-angle and the inclination-angle, three-dimensional modeling of the designed mechanism is carried out through CATIA software. The results show that the relative errors after adjusting the opening-angle and inclination-angle are 0.065% and 0.01%, respectively, which also confirms that the adjustment mechanism designed by the modeling method has the characteristics of high adjustment accuracy and simple operation.

关 键 词：坐标变换 双角度 定量调整 建模方法 

分 类 号：S23-01[农业科学—农业机械化工程]