摘要
工农-5型手扶拖拉机配套深翻锄的工作部件是一种挖掘式耕作机构,它能实现土垡原行翻转,适合林业苗圃、茶园、果园等的行间翻耕作业.本文叙述了采用直观、简明的几何综合法进行该机构的设计,详细介绍了根据锄齿工作轨迹的要求用转动中心曲线和相对运动原理设计四杆机构的过程;通过对机构进行运动分析求出了锄尖的速度和加速度;并初步分析了受力及其平衡,经过轨迹复演检验和田间实测证明耕深、沟底平整度和工作稳定性都达到了设计和农艺技术要求.
The work component of the deep-digger which is hitched to Model GN-5 Walking Tractor is a kind of excavating tillage mechanism. It can perform the tillage of the soil block in original line, so it is suitable to cultivate the forest nursery, orchard and so on. This paper related how to design the mechanism with the objective and concise geometrical method and introduced in detail the process of designing the four-bar linkage by means of the rotary center curve and the relative motion principle according to the demands on the work path of the hoe-tip. Also, the velocity, acceleration, forces acted on the mechanism and its equilibrium were analysed. Though examination of path recurrence and the field tests, it was proved that the tillage depth, the evenness of ditch and the working stability of the deep-digger met the demands of design and agrotechnique
关键词
园林
拖拉机
深翻锄
设计
运动分析
forest and orchard
deep-digger
geometrical method
design
kinematic analysis
