| 引用本文： |
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罗亚兰，赵春花，卞鲁平，陈 凯，周 洋.山地牧草调制机关键设计参数确定与试验研究[J].大中文模板3,2014,(5):266-270. [点击复制]
- LUO Ya-lan, ZHAO Chun-hua, BIAN Lu-ping, CHEN Kai, ZHOU Yang.Design and experimental study of the key parameters on mountain mower conditioner[J].大中文模板3,2014,(5):266-270. [点击复制]
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| 摘要: |
| 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。 |
| 关键词: 牧草调制机 关键参数 设计 压扁 试验 |
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| 基金项目:2012农业部公益行业(农业)科研专项“苜蓿饲草料生产机械化关键工艺及装备的研发与示范”(201203024)；甘肃省农转项目“4GH120型手扶山地多功能收割机的中试”(1105NCNA095)；2012年甘肃省杰出青年基金项目“牧草生物力学通用数据库建立及配套割草压扁机理研究”(2012GS05590)；甘肃农业大学伏羲杰出人才培育计划“苜蓿机械化播种、收获机理研究及其应用开发” |
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| Design and experimental study of the key parameters on mountain mower conditioner |
| LUO Ya-lan, ZHAO Chun-hua, BIAN Lu-ping, CHEN Kai, ZHOU Yang |
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| Abstract: |
| 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 o
perational 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. |
| Key words: pasture mower conditioner key parameters design flattening test |
