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4YZP-2玉米收获机摘穗与剥皮试验

发表时间:2017-05-15  浏览量:1437  下载量:389
全部作者: 杜岳峰,宋正河,秦嘉浩
作者单位: 中国农业大学工学院
摘 要: 利用研制的摘穗和剥皮试验台,分别测试4YZP-2玉米收获机在正常工作时摘穗机构和剥皮机构的功耗。试验结果表明,拉茎辊转速为700~1 000 r/min时,摘穗功耗为2.4~3.9 kW,拉茎辊的最佳转速为800 r/min;剥皮辊转速为350~500 r/min时,剥皮功耗为1.45~1.90 kW,剥皮辊最佳转速为450 r/min. 利用高速摄像机采集正常喂入茎秆及果穗时的运动,基于图像分析软件计算出茎秆、果穗与工作部件接触时的运动速度以及拉茎辊、剥皮辊的有效工作长度。结果表明,茎秆竖直方向的拉引速度在3.04~4.06 m/s范围内变化,且拉茎辊的有效工作长度为246~343 mm;果穗沿剥皮辊方向的运动速度在0.61~0.75 m/s范围内变化,剥皮辊的有效剥皮长度仅为245~315 mm. 该研究为玉米收获机优化设计提供参考。
关 键 词: 农业机械学;功耗实验;摘穗;剥皮;高速摄像
Title: Experiment of picking and husking for 4YZP-2 corn harvester
Author: DU Yuefeng, SONG Zhenghe, QIN Jiahao
Organization: College of Engineering, China Agricultural University
Abstract: The power consumption of 4YZP-2 type maize header and husker was measured by using test bench respectively. The results of the experiment show that the power consumption of the header ranges from 2.4 to 3.9 kW when the snapping roller rotates at the speed of 700 to 1 000 r/min, and the optimum rotational speed of snapping roller is 800 r/min. The power consumption of maize husker ranges from 1.45 to 1.90 kW when the husking roller rotates at the speed between 350 to 500 r/min and the optimum rotational speed of husker roller is 450 r/min. Besides, the working process of maize header and husker was recorded using a high-speed camera, and the velocities of corn straws and corn-cobs along with the effective working lengths of snapping roller and husking roller were analyzed by utilizing the image analysis software. The results of the calculation show that the vertical velocity of corn straws ranges from 3.04 to 4.06 m/s, and the effective working length of snapping roller ranges from 246 to 343 mm. The velocity of the corn-cobs in the direction of the husking roller ranges from 0.61 to 0.75 m/s. Furthermore, the effective working length of husking roller is only 245 to 315 mm. The research offers reference for designing corn harvester.
Key words: agricultural mechanics; power consumption experiment; picking; husking; high-speed photography
发表期数: 2017年5月第9期
引用格式: 杜岳峰,宋正河,秦嘉浩. 4YZP-2玉米收获机摘穗与剥皮试验[J]. 中国科技论文在线精品论文,2017,10(9):1004-1010.
 
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