基于高速摄影的油茶果机械采摘受力分析
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摘要
目前,我国油茶果采摘机械尚不成熟,油茶果与机械装置作用受力情况较为复杂,难于分析。为了探索油茶果与机械装置作用机理,分析其受力情况,采用高速摄影相机PCO1200S和Image pro plus软件对旋转式胶辊、齿梳拨刀式和平行胶辊3种不同机械采摘方式下的油茶果所受的冲击力进行分析,得到旋转式胶辊、齿梳拨刀式和平行胶辊的动量大小分别是0. 05、0. 02、0. 13kg·m/s,所受冲击力分别是2. 06、2. 65、2. 7N。结果表明:旋转胶辊动量较小,采摘时受力最小,采摘效率最高,综合采摘性能最佳。研究结果可为阐明油茶果机械采摘机理及装置设计提供参考。
At present,Camellia fruit-picking machines developing slowly in China. As the effect of between Camellia fruit andpicking machine is complicated,so analyzing the mechanism of Camellia fruitpicking by machine is difficult. In this paper,in order to reveal themechanism between Camellia fruit and picking machine,the force of Camelliafruit was analyzed in the process of Camellia fruit harvest by three kinds of Camellia fruit picking machine. By means of high speed photography( PCO1200 S) andimage pro plus software,the impact force of Camellia fruit withrotary rubber roller,tooth comb and parallel rubberroller for Camellia fruit picking machine were computed,and the correspond ofCamellia fruit were obtained. The impact force was 2.06 N,2.65 N,2.7 Nrespectively; and the momentum was 0.05 kg·m/s,0.02 kg·m/s,0.13 kg·m/s respectively. The results show thatCamellia fruit picking with rotary rubber roller possess small momentum and theminimum force than those of other two mechanical picking devices. Moreover,therotary rubber roller owns the best comprehensive picking performance because ofits highest mechanical picking efficiency.which provide referencesfor revealing mechanism of Camellia fruit harvest by machine and its mechanicaldesign.
At present,Camellia fruit-picking machines developing slowly in China. As the effect of between Camellia fruit andpicking machine is complicated,so analyzing the mechanism of Camellia fruitpicking by machine is difficult. In this paper,in order to reveal themechanism between Camellia fruit and picking machine,the force of Camelliafruit was analyzed in the process of Camellia fruit harvest by three kinds of Camellia fruit picking machine. By means of high speed photography( PCO1200 S) andimage pro plus software,the impact force of Camellia fruit withrotary rubber roller,tooth comb and parallel rubberroller for Camellia fruit picking machine were computed,and the correspond ofCamellia fruit were obtained. The impact force was 2.06 N,2.65 N,2.7 Nrespectively; and the momentum was 0.05 kg·m/s,0.02 kg·m/s,0.13 kg·m/s respectively. The results show thatCamellia fruit picking with rotary rubber roller possess small momentum and theminimum force than those of other two mechanical picking devices. Moreover,therotary rubber roller owns the best comprehensive picking performance because ofits highest mechanical picking efficiency.which provide referencesfor revealing mechanism of Camellia fruit harvest by machine and its mechanicaldesign.
引文
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[2]顾宝兴,姬长英,王海青,等.智能移动水果采摘机器人设计与试验[J].农业机械学报,2012(6):153-160.
[3]章江丽,陈顺伟,庄晓伟,等.南方丘陵山地果园采摘机械的现状[J].林业机械与木工设备,2014(9):4-7.
[4]高自成,李立君,李昕,等.齿梳式油茶果采摘机采摘执行机构的研制与试验[J].农业工程学报,2013(10):19-25.
[5]程学良,李立君,高自成,等.油茶果振动采摘系统运动特性分析[J].农机化研究,2014,36(2):15-19.
[6]王朋辉,李立君,高自成,等.摆动式林果采摘头设计与分析[J].西北林学院学报,2015(5):288-291.
[7]张立勇,饶洪辉,罗时挺,等.基于ADAMS的油茶果采摘机械臂试验设计及优化[J].农机化研究,2017,39(11):158-163.
[8]罗时挺,饶洪辉,张立勇,等.齿梳拨刀式油茶果采摘装置设计与试验[J].农机化研究,2017,39(2):84-88.
[9]冯国坤,饶洪辉,许朋,等.油茶果机械采摘装备与技术研究现状[J].中国农机化,2015(5):125-127.
[10]邱发平,向红,何景风,等.高速摄影技术在跌落加速度测试中的应用研究[J].包装学报,2010(2):36-39.
[11]佚名.高速摄影技术及其应用(一)[J].航空工艺技术,1977(11):9-12.
[12]刘宝祥.阵列相机高速摄影技术研究[D].北京:北方工业大学,2016.
[13]黄业恩,安建虹,章思思,等.Image-Pro Plus与Image J图像分析功能比较及其在生物组织结构测试中的应用[J].中国体视学与图像分析,2015(2):185-196.
[14]赵亮,徐玉中,应伟,等.Image-Pro Plus技术在沟槽滤棒特征参数测量中的应用[J].烟草科技,2015(2):85-90.