果园开沟作业机组附加减速器的优化设计

Optimization Design of Attached Reducer of Orchard Ditching's Tractor

果园开沟作业需要拖拉机配有爬行挡,在满足工作和农艺要求下,机组速度应控制在120~140m/h。为此,通过对开沟机减速器与机组附加减速器的组合传动系统设计,实现了在果园正常开沟作业。以机组附加减速器为研究重点,采用MatLab软件的全局优化算法,对机组附加减速器的设计变量和约束条件进行了研究,并建立了优化数学模型。经过MatLab优化设计后,机组附加减速器的总中心距比传统理论设计总中心距减少了15%。

The tractor need to be equipped with creeper gear when trenching in the orchard, the speed of tractor should be controlled in 120 - 140m/h to satisfied work and agronomic requirements. Our group realized the normal trenching work in orchard by designing the combination drive system between reducer of trencher and attached reducer of tractor. To set attached reducer as the research focus, the paper uses the optimization algorithm of Matlab software to have a study on the design variables and constraints of the attached gear reducer, and the optimization mathematical model is established. Through optimization of Matlab, the center distance of attached gear reducer have decreased by 15 % than traditional theoretical design＇ s.