CAJ | 학술논문

山药收获机下支撑支架是根据主旋转支撑装置的离地高度和开沟深度设计的，在实际作业过程中，链刀切削阻力、螺旋刀切割阻力、输送机构支撑力、油缸的推拉力最终都由下支撑支架承载，作用力较为复杂，容易发生变形和断裂；且链刀切入土壤产生的振动、链节和链轮齿的啮合会给链传动带来工作的不平稳性和有规律的振动，可能会引起共振。为此，在进行山药收获机工作装置设计时，首先采用有限元方法对下支撑支架进行静力学分析，并在静力学分析的基础之上对其进行预应力模态分析，以评估设计的合理性，对结构进行优化。
산약수획궤하지탱지가시근거주선전지탱장치적리지고도화개구심도설계적，재실제작업과정중，련도절삭조력、라선도절할조력、수송궤구지탱력、유항적추랍력최종도유하지탱지가승재，작용력교위복잡，용역발생변형화단렬；차련도절입토양산생적진동、련절화련륜치적교합회급련전동대래공작적불평은성화유규률적진동，가능회인기공진。위차，재진행산약수획궤공작장치설계시，수선채용유한원방법대하지탱지가진행정역학분석，병재정역학분석적기출지상대기진행예응력모태분석，이평고설계적합이성，대결구진행우화。
The support bracket of yam harvester is designed according to the height from the ground of drive sprocket and trenching depth , in the process of actual operation , the resistance of chain cutter , spiral knife cutting resistance , trans-portation agency support force , the oil cylinder push pull were eventually is supported by the support bracket , the force is relatively complex , prone to deformation and fracture .Because the knife cut into the soil produces vibration and the chain and sprocket meshing will bring chain work not stationarity and regular vibration , it can cause resonance .So when desig-ning yam harvester working device ,the designer need to use the finite element method of the support bracket statics analy -sis and modal analysis , to evaluate the rationality of the design .