自走式牧草青贮联合装袋机设计与试验
针对目前中国牧草收贮设备不能将盛产期的牧草切割后直接装袋而造成的运输成本高、工序多、营养损失大等问题,提出了将牧草在田间进行收割、粉碎、装袋、扎口联合作业的青贮保存方法,并设计了一种自走式牧草青贮联合装袋机。该文描述了机器的总体设计方案,并对输送粉碎装置、牧草粉碎后螺旋挤压等装置进行了设计,确定了其关键参数值。该研究进行了含水率为78%的牧草试验,机器前进的平均速度为2.3m/s、割茬高度为5~15mm,螺旋压缩比为2:1,临界旋转速度为99r/min,样机能够顺利工作,装袋的密度能达到320kg/m3,装袋平均时间为30s每袋。机型的设计不仅能够提高劳动生产率,方便取饲喂养,而且为青贮牧草的...
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Published in | 农业工程学报 Vol. 30; no. 19; pp. 30 - 37 |
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Main Author | |
Format | Journal Article |
Language | Chinese |
Published |
中国农业科学院草原研究所农业部草地资源与生态重点实验室,呼和浩特 010010%中国农业大学工学院,北京,100083
2014
中国农业大学工学院,北京 100083 |
Subjects | |
Online Access | Get full text |
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Summary: | 针对目前中国牧草收贮设备不能将盛产期的牧草切割后直接装袋而造成的运输成本高、工序多、营养损失大等问题,提出了将牧草在田间进行收割、粉碎、装袋、扎口联合作业的青贮保存方法,并设计了一种自走式牧草青贮联合装袋机。该文描述了机器的总体设计方案,并对输送粉碎装置、牧草粉碎后螺旋挤压等装置进行了设计,确定了其关键参数值。该研究进行了含水率为78%的牧草试验,机器前进的平均速度为2.3m/s、割茬高度为5~15mm,螺旋压缩比为2:1,临界旋转速度为99r/min,样机能够顺利工作,装袋的密度能达到320kg/m3,装袋平均时间为30s每袋。机型的设计不仅能够提高劳动生产率,方便取饲喂养,而且为青贮牧草的收获存储提供了新的方法。 |
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Bibliography: | 11-2047/S Silaging nutrient-rich phase grass with bags in the field can reduce nutrient loss, maintain green feed nutrients, and facilitate long-term preservation; thus promotes the growth of good livestock. To facilitate direct storage of forage harvested in the field, one self-propelled grass silage combined bagging machine was developed.. It integrated the cutting device, a conveyor feeding device, a crushing and throwing device, vertical auger conveyor equipment, grass bagging density control device. And their key device parameters were calculated. The self-propelled grass silage combined bagging machine used disc cutter to cut grass, the blade root diameter and top diameter were 500 and 620 mm, and the critical forward speed of the machine was 17.9 km/h so that leakage could be prevented and repeat cutting could be reduced. The designed grinding hob diameter and the width were 550 and 480 mm. it’s rated rotating speed was 1600 r/min and the linear velocity of the feed roller was from 2.1-17.1 m/s when the |
ISSN: | 1002-6819 |
DOI: | 10.3969/j.issn.1002-6819.2014.19.004 |