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Wan Qihao, Wang Decheng, Wang Guanghui, Gong Zeqi, Bai Yang. Design and experiment of self-propelled grass silage combined bagging machine[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2014, 30(19): 30-37. DOI: 10.3969/j.issn.1002-6819.2014.19.004
Citation: Wan Qihao, Wang Decheng, Wang Guanghui, Gong Zeqi, Bai Yang. Design and experiment of self-propelled grass silage combined bagging machine[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2014, 30(19): 30-37. DOI: 10.3969/j.issn.1002-6819.2014.19.004

Design and experiment of self-propelled grass silage combined bagging machine

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  • Received Date: May 17, 2014
  • Revised Date: October 10, 2014
  • Published Date: September 30, 2014
  • Abstract: 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 length of the cutting grass was 5-40 mm. The diameters of the front and intermediate feed roller were 300 and 260 mm, and the calculated rear feeding roller diameter was 90 mm. In order to minimize forage accumulation, the designed throwing roller diameter was 300 mm, the width was 510 mm, the angular velocity was 2 600 r/min, the leaf number was 4, and the angle of thrown pieces of angle was 20°. The displacement and velocity equations at any moment from the start. Grass compressed by screw auger before output from the silo. The compression ratio of the screw mechanism can be adjusted for achieving the desired output squeeze effect. The three different of compression ratio screw auger were designed for different types of forage, and spirals can be changed by the exchange of connecting flange. According to squeeze theory, the designed spiral inner diameter was 100 mm and screw conveyor segment pitch was 345 mm at the beginning of variable pitch segments, meanwhile the surface of screw extruder was polished and longitudinal grooves in the barrel were built for increasing the extrusion effect. The crushed forage was loose and easy to squeeze, and had a large volume gradient. Then the volume gradient became small, and pitch gradually becomes small, so rational compression ratio made compression effect better. Finally, the critical rotation speed was calculated and was 99 r/min. In the self-propelled silage harvester, this innovative design combined automatic pneumatic tying device could greatly reduce labor intensity. Working performance test of the developed prototype was conducted with forage whose moisture content is 78%. Results showed a stubble height was 5-15 mm, cutting leakage loss was 0.85%, average bagging density was 320 kg/m3, average bagging time was 30 s per bag, tying rate was 100%.With average forward speed at 2.3 m/s, operation capability of the machine can achieve 0.53-0.67 hm2/h without clogging. The presented study provides a new approach for the harvest and storage of silage grass.
  • [1]
    李向林,万里强. 苜蓿青贮技术研究进展[J]. 草业学报,2005,14(2):9-15.Li Xianglin, Wan Liqiang. Advances in technology alfalfa silage[J]. Acta Prataculturae Sinica, 2005, 14(2): 9-15. (in Chinese with English abstract)
    [2]
    马春晖,夏艳军,韩军,等. 不同青贮添加剂对紫花苜蓿青贮品质的影响[J]. 草业学报,2010,19(1):128-133.Ma Chunhui, Xia Yanjun, Han Jun, et al. Effects of different additives on the quality of Medic ago sativa silage[J]. Acta Prataculturae Sinica, 2010, 19(1): 128-133. (in Chinese with English abstract)
    [3]
    Edward H Priepke, Stevens, Robert A Wagstaff. Forage Harvester: United States, 4223846[P]. 1980-09-23.
    [4]
    Benjamin H S, Henry N L. Forage harvester cutterhead and method of sharpening: United States, 4319718[P]. 1982-03-23.
    [5]
    John R M, Mark K. Automatic knife sharpening system for forage harvester: United States, 5098027[P]. 1992-03-24.
    [6]
    Bernd K. Drive system for a crop processing device and a crop transport device of a harvesting machine: United States, US6810649B2[P]. 2004-11-02.
    [7]
    万霖,车刚,汪春,等. 4QZR-30型青贮饲料收获机设计与试验[J]. 农业机械学报,2008,39(3):187-190.Wan Lin, Che Gang, Wang Chun, et al. Design and test of 4QZR-30 Forage Harvester[J]. Transactions of the Chinese Society for Agricultural Machinery, 2008, 39(3): 187-190. (in Chinese with English abstract)
    [8]
    车刚,万霖,张伟,等. 青贮饲料收获机实体设计与试验[J]. 农业机械学报,2010,41(2):82-86.Che Gang, Wan Lin, Zhang Wei, et al. Solid design and experiment of Forage Harvester[J]. Transactions of the Chinese Society for Agricultural Machinery, 2010, 41(2): 82-86. (in Chinese with English abstract)
    [9]
    赵清华,车刚,万霖,等. 新型青贮饲料收获机滚筒切碎器的设计与试验研究[J]. 黑龙江八一农垦大学学报,2006,18(6):43-46.Zhao Qinghua, Che Gang, Wan Ling, et al. Design and experimental study on new type shredding drum of cylinder-type forage harvester[J]. Journal of Heilongjiang Bayi Agriculture University, 2006, 18(6): 43-46. (in Chinese with English abstract)
    [10]
    丛宏斌,李明利,李汝莘,等. 4YQK-2型茎秆青贮打捆玉米收获机的设计[J]. 农业工程学报,2009,25(10):96-100.Cong Hongbin, Li Mingli, Li Ruxin, et al. Design of 4YQK-2 combine harvester for corn and straw ensilage[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2009, 25(10): 96-100. (in Chinese with English abstract)
    [11]
    丛宏斌,李汝莘,韩新月,等. 青贮玉米收获机打捆装置自动控制系统设计[J]. 农业机械学报,2009,40(11):42-45.Cong Hongbin, Li Ruxin, Han Xinyue, et al. Design of automatic control system on baling apparatus for ensilage maize combine[J] .Transactions of the Chinese Society for Agricultural Machinery, 2009, 40(11): 42-45. (in Chinese with English abstract)
    [12]
    中国农业机械化科学研究院编. 农业机械设计手册[M]. 北京:中国农业科学技术出版社,2007.
    [13]
    杨明韶,杜建民. 草业工程机械学[M]. 北京:中国农业大学出版社,2013.
    [14]
    Dennis L. Determination of the Air and Crop Flow Behaviour in the Blowing Unit and Spout of a Pull-type Forage Harvester[D]. Saskatoon: Saskatchewan University of Saskatchewan, 2005.
    [15]
    Chattopadhyay P S, Pandey K P. Impact cuttingbehaviour of sorghum stalk using a flail-cutter-a mathematical Model and its Experimental Verification[J]. Journal of Agriculture Engineering Research, 2001, 78(4): 369-376.
    [16]
    Lisowski A, Swiatek K, Klonowski J, et al. Movement of chopped material in the discharge spout of forage harvester with a flywheel chopping unit: Measurements using maize and numerical simulation[J]. Biosystems Engineering, 2012, 111(4): 381-391.
    [17]
    Lee L Y, Quek T Y, Deng Rensheng, et al. Pneumatic transport of granular materials through a 90 bend[J]. Chemical Engineering Science, 2004, 59(21): 4637-4651.
    [18]
    胡瑞谦. 质点在绕水平轴等速旋转平面型叶片上运动的分析[J]. 农业机械学报,1980,11(4):62-71.Hu Ruiqian. The motive analysis of particle which is on the blade of plane type, the blade rotate round a horizontal axle with constant angular velocity[J]. Transactions of the CSAM, l980,11(4): 62-71. (in Chinese with English abstract)
    [19]
    翟之平,吴雅梅,王春光,等. 物料沿抛送叶片的运动仿真与高速摄像分析[J]. 农业工程学报,2012,28(2):23-28.Zhai Zhiping, Wu Yamei, Wang Chunguang, et al. Dynamic simulation and high-speed camera analysis on materials moving along throwing impellers[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2012, 28(2): 23-28. (in Chinese with English abstract)
    [20]
    肖旭霖. 食品机械与设备[M]. 北京:科学出版社,2006.
    [21]
    李波. 挤出机设计理论和计算[M]. 北京:中国建材工业出版社,2010.
    [22]
    张裕中. 食品加工技术装备(第2版)[M]. 北京:中国轻工业出版社,2007.
    [23]
    NY/T991-2006,牧草收获机械作业质量[S] .
    [24]
    GB10394-89,青饲料收获机试验方法[S].
    [25]
    B/T9700-1999,牧草收获机械试验方法通则[S].

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