9ZFS-350型履带式自走剪枝粉碎机的设计与试验

为解决果树枝粉碎还田问题,设计了一种9ZFS-350型履带式自走剪枝粉碎机。首先,阐述了该机的整体结构和工作原理;然后,根据理论分析及前期试验确定以喂入量、粉碎转速、导流板倾角为试验因素,粉碎合格率为目标值,利用Design-expert数据处理软件对其目标值进行响应面优化分析。分析表明:影响目标值的显著顺序为粉碎转速X₂>喂入量X₁>导流板倾角X₃进行优化分析得到工作参数组合为:当喂入量X₁=354.57 kg/h、粉碎转速X₂=1979.01 r/min、导流板倾角X₃=20.81°时,粉碎合格率Y达到95.03%。田间试验结果表明:当喂入量X₁=355 kg/h、粉碎转速X₂=2000 r/min、导流板倾角X₃=21°时,粉碎合格率Y=92.94%,试验值与优化结果的相对误差为2.20%,小于5%。试验结果可为果树枝粉碎机的设计提供理论依据。

Parameter Optimization and Test of 9ZFS-350 Crawler Self-propelled Pruning Crusher

The crushing of fruit branches and returning to the fields is a problem that needs to be solved urgently,so this paper designs a 9ZFS-350 crawler self-propelled pruning crusher.First,the overall structure and working principle of the machine are explained,and then based on theoretical analysis and preliminary tests,it is determined that the feed rate,crushing speed,and deflector inclination are the test factors,and the crushing pass rate is the target value.Through using the design-expert data processing software,the target value is subjected to response surface optimization analysi.The significant sequence that affected the target value was:crushing speed X₂>feeding amount X₁>deflector inclination X₃,and performing optimization analysis to obtain a combination of working parameters:feeding amount X₁ was 354.57 kg/h,the crushing speed X₂ was 1979.01 r/min,and the deflector inclination X₃ was 20.81°,the crushing qualification rate Y reached 95.03%.Finally,it was verified by field experiments.The results showed that when the feeding amount X₁ was 355 kg/h,the crushing speed X₂ was 2000 r/min,and the deflector inclination X₃ was 21°,the crushing qualification rate Y was 92.94%.The relative error between the value and the optimized result was 2.20%and less than 5%.The test results provide a theoretical basis for the design of the fruit tree shredder.