CAJ | 학술논문

为确定切割速比、压辊圆周速度和拨禾速比3个山地牧草调制机关键设计参数，依据牧草收获农艺要求，以作业割茬高度低、重割次数少、压扁比例高及碎草损率失小为试验评价指标，结合正交试验研究，应用综合平衡法，得到各影响因素的最优方案组合：切割速比为2．5、压辊圆周速度为4．2 m·s-1、拨禾速比为2．5。按照该最优方案进行试验，试验结果表明：作业割茬为42 mm、重割率为0．73％、压扁比例为46．5％及碎草损失率为2．3％，符合牧草收获的作业要求。
위학정절할속비、압곤원주속도화발화속비3개산지목초조제궤관건설계삼수，의거목초수획농예요구，이작업할치고도저、중할차수소、압편비례고급쇄초손솔실소위시험평개지표，결합정교시험연구，응용종합평형법，득도각영향인소적최우방안조합：절할속비위2．5、압곤원주속도위4．2 m·s-1、발화속비위2．5。안조해최우방안진행시험，시험결과표명：작업할치위42 mm、중할솔위0．73％、압편비례위46．5％급쇄초손실솔위2．3％，부합목초수획적작업요구。
In order to determine the cutting speed ratio,press roller circumferential speed and reel speed ratio of mountain mower conditioner three key design parameters,an experiment was conducted in the right of requirements for pasture harvesting technology,with the low working stubble height,few recutting times,high flattening ratio and small broken grass loss rate as evaluating indicators .Through the orthogonal experiments,application comprehensive balance method to obtain the optimal combination working parameters:the cutting ration was 2 .5,the press roller circumferential speed was 4 .2 m·s-1 ,the reel speed ratio was 2 .5 .Measured with the optimal combination of operational parameters, the results showed that,the working stubble was 42 mm,the recutting rate was 0 .73%,the flattening ratio was 46 .5%and the crushed grass loss rate was 2 .3%,which could meet the demand of forage harvest operation .