Design and Experimentation of Conveying and Separating Device for Fresh-eating Sweet Potato Harvester in Sandy Soil

doi:10.13304/j.nykjdb.2024.0092

Abstract

Abstract:

Aiming at the problems of mechanization harvesting high skin breaking rate of fresh-eating sweet potato under sandy soil， this study designed a rubber-wrapped integrated conveying and separating device. The device key components were designed， the quadratic regression orthogonal rotating combination design was adopted to conduct field tests and performance analysis with the line speed of the conveying and separating device， the amplitude of the jitter device， and the digging depth as test factors， and the sweet potato skin breaking rate and loss rate as the evaluation indexes， as well as the variance analysis response surface drawing and parameter optimization were carried out by using Design Expert software of the test results. Optimal working parameter combination after optimization： the line speed of the conveying and separating device was 0.28 m·s^-1， the amplitude of the shaking device was 14 mm， the digging depth was 232 mm， forecast the skin breaking rate was 0.851%， the loss rate was 0.678%. According to the verification test get the parameter combination below the skin breaking rate was 0.866% and the loss rate was 0.694%， and the optimization results were basically consistent with the verification results， which met the requirements of fresh-eating sweet potato harvesting in sandy land.

Key words: sweet potato harvester, conveying and separating device, sandy soil, fresh-eating sweet potato

摘要：

针对沙地鲜食甘薯机械化收获破皮率高的问题，设计了一种橡胶包裹的一体式输送分离装置。对该装置的关键部件进行设计，以输送分离装置线速度、抖动装置振幅和挖掘深度为试验因素，以甘薯破皮率和损失率为评价指标，采用二次回归正交旋转组合设计进行田间试验和性能测试，并使用Design Expert软件对试验结果进行方差分析、响应面绘制以及参数优化。优化后最佳工作参数组合为：输送分离装置线速度为0.28 m·s^-1、抖动装置振幅为14 mm、挖掘深度为232 mm，预测破皮率为0.851%，损失率为0.678%。验证结果显示，该参数组合下破皮率为0.866%，损失率为0.694%，优化结果与验证结果基本一致，满足沙地鲜食甘薯收获要求。

关键词: 甘薯收获机, 输送分离装置, 沙质土壤, 鲜食甘薯

CLC Number:

S225.7+1

Gang ZHENG, Peng XU, Dongquan CHEN, Songmei YANG, Minsheng WU, Ranbing YANG. Design and Experimentation of Conveying and Separating Device for Fresh-eating Sweet Potato Harvester in Sandy Soil[J]. Journal of Agricultural Science and Technology, 2025, 27(6): 104-112.

郑刚, 许鹏, 陈栋泉, 杨松梅, 吴敏生, 杨然兵. 沙地鲜食甘薯收获机输送分离装置设计与试验[J]. 中国农业科技导报, 2025, 27(6): 104-112.

Figures/Tables 11

References 24

1	ZHANG J, JIA C, WU Y, et al.. Life cycle energy efficiency and environmental impact assessment of bioethanol production from sweet potato based on different production modes [J/OL]. PLoS One, 2017, 12(7):e0180685 [2023-06-15]. .
2	KATO K, NAGANE M, AIHARA N, et al.. Lipid-soluble polyphenols from sweet potato exert antitumor activity and enhance chemosensitivity in breast cancer [J]. J. Clin. Biochem. Nutr., 2021, 68(3):193-200.
3	李强,赵海,靳艳玲,等.中国甘薯产业助力国家粮食安全的分析与展望[J].江苏农业学报, 2022, 38(6):1484-1491.
	LI Q, ZHAO H, JIN Y L, et al.. Analysis and perspectives of sweetpotato industry contributing to national food security in China [J]. Jiangsu J. Agric. Sci., 2022, 38(6):1484-1491.
4	谢一芝,边小峰,贾赵东,等.中国鲜食甘薯产业发展现状及其发展前景[J].江苏农业学报, 2022, 38(6):1694-1701.
	XIE Y Z, BIAN X F, JIA Z D, et al.. Development status and prospect of fresh sweet potato industry in China [J]. Jiangsu J. Agric. Sci., 2022, 38(6): 1694-1701.
5	王欣,李强,曹清河,等.中国甘薯产业和种业发展现状与未来展望[J].中国农业科学, 2021, 54(3):483-492.
	WANG X, LI Q, CAO Q H, et al.. Current status and future prospective of sweet potato production and seed industry in China [J]. Sci. Agric. Sin., 2021, 54(3):483-492.
6	张晓光,王群,金嘉丰,等.彰武县沙地甘薯生态高效栽培关键技术[J].农业开发与装备, 2020(2):194, 147.
7	胡良龙,胡志超,王冰等.国内甘薯生产机械化研究进展与趋势[J].中国农机化, 2012(2):14-16.
	HU L L, HU Z C, WANG B, et al.. Research development and trend of sweet potato (lpomoea batatas Lam.) production mechanization in China [J]. Chin. Agric. Mech., 2012(2):14-16.
8	胡良龙,田立佳,计福来,等.国内甘薯生产收获机械化制因思索与探讨[J].中国农机化, 2011(3):16-18.
	HU L L, TIAN L J, JI F L, et al.. Analysis and discussion on the restriction causations for harvesting mechanization of sweet potato in China [J]. Chin. Agric. Mech., 2011(3):16-18.
9	侯国强,韩休海,陈维刚.马铃薯收获机工作原理与伤薯问题产生机理研究[J].农机使用与维修, 2021(8):20-21.
10	吴俊.基于EDEM的宝塔菜收获机的设计及仿真分析[D].宁夏:宁夏大学, 2018.
	WU J. Design and simulation analysis of artichok combine harvester based on EDEM [D]. Ningxia: Ningxia University, 2018.
11	杨红光,胡志超,王冰,等.马铃薯收获机械化技术研究进展[J].中国农机化学报, 2019, 40(11):27-34.
	YANG H G, HU Z C, WANG B, et al.. Research progress of harvesting mechanization technology of potato [J]. J. Chin. Agric. Mech., 2019, 40(11):27-34.
12	吕金庆,孙贺,兑瀚,等.粘重土壤下马铃薯挖掘机分离输送装置改进设计与试验[J].农业机械学报, 2017, 48(11):146-155.
	LÜ J Q, SUN H, DUI H, et al.. Design and experiment on conveyor separation device of potato digger under heavy soil condition [J]. Trans. Chin. Soc. Agric Mach., 2017, 48(11):146-155.
13	魏忠彩,李洪文,苏国粱,等.低位铺放双重缓冲马铃薯收获机设计与试验[J].农业机械学报, 2019, 50(9):140-152.
	WEI Z C, LI H W, SU G L, et al.. Design and experiment of potato harvester using double cushions for low laying separation technology [J]. Trans. Chin. Soc. Agric Mach, 2019, 50(9):140-152.
14	申海洋,王冰,胡良龙,等.4UZL-1型甘薯联合收获机薯块交接输送机构设计[J].农业工程学报, 2020, 36(17):9-17.
	SHEN H Y, WANG B, HU L L, et al.. Design of potato connecting and conveying mechanism for 4UZL-1 type sweet potato combine harvester [J]. Trans. Chin. Soc. Agric. Eng., 2020, 36(17):9-17.
15	申海洋,王公仆,胡良龙,等.4UZL-1型甘薯联合收获机刮板链提升机构设计与台架试验[J].中国农机化学报, 2021, 42(9):7-17, 121.
	SHEN H Y, WANG G P, HU L L, et al.. Design and bench test of scraper chain lifting mechanism of 4UZL-1 sweet potato combine harvester [J]. J. Chin. Agric. Mech., 2021, 42(9):7-17, 121.
16	李彦彬,张兆国,王圆明,等.马铃薯收获机多级输送分离装置设计与试验[J].沈阳农业大学学报, 2021, 52(6):758-768.
	LI Y B, ZHANG Z G, WANG Y M, et al.. Design and experiment of multistage conveying and separating device for potato harvester [J]. J. Shenyang Agric. Univ., 2021, 52(6):758-768.
17	韩嫣,屈雪,黄东,等.甘薯收获环节损失率测算及影响因素分析[J].西南农业学报, 2019, 32(6):1383-1390.
	HAN Y, QU X, HUANG D, et al.. Harvest loss rate of sweet potato and its influencing factors [J]. Southwest China J. Agric. Sci., 2019, 32(6):1383-1390.
18	李季成,吕伊宁,孙玉凯,等.马铃薯收获机分离升运装置设计与试验——基于当量半径法[J].农机化研究, 2022, 44(12):199-206, 256.
	LI J C, LÜ Y N, SUN Y K, et al.. Design and experiment of separating and lifting device of potato harvester—based on equivalent radius method [J]. J. Agric. Mech. Res., 2022, 44(12):199-206, 256.
19	魏忠彩,王业炜,李学强,等.弹性揉搓式马铃薯联合收获机设计与试验[J].农业工程学报, 2023, 39(14):60-69.
	WEI Z C, WANG Y W, LI X Q, et al.. Design and experiments of the potato combine harvester with elastic rubbing technology [J]. Trans. Chin. Soc. Agric Eng., 2023, 39(14):60-69.
20	杨摄,郑明军,吴文江,等.基于离散元的风沙沙粒物理特性参数标定[J].石家庄铁道大学学报(自然科学版), 2021, 34(1):49-57.
	YANG S, ZHENG M J; WU W J, et al.. Calibration of physical characteristics of wind sand particles based on discrete element method [J]. J. Shijiazhuang Tiedao Univ. (Nat. Sci.), 2021, 34(1):49-57.
21	张兆国,王法安,张永成,等.自走式三七收获机设计与试验[J].农业机械学报, 2016, 47(S1):234-240.
	ZHANG Z G, WANG F A, ZHANG Y C, et al.. Design and experiment of self-propelled panax notoginseng harvester [J]. Trans. Chin. Soc. Agric. Mach, 2016, 47(S1):234-240.
22	程祥勋.新型甘薯收获机关键装置设计与试验[D].泰安:山东农业大学, 2019.
	CHENG X X, Design and experiment of key equipment for new sweet potato harvester [D]. Tai'an: Shandong Agricultural University, 2019.
23	杨然兵,张建,尚书旗,等.甘薯联合收获机二级输送分离装置的设计与试验[J/OL].吉林大学学报(工学版): 1-14 [2023-06-15]. .
	YANG R B, ZHANG J, SHANG S Q, et al.. Design and test of secondary conveyor separator device for sweet potato combine harvester [J/OL]. J. Jilin Univ. (Eng. Tech.): 1-14 [2023-06-15]. .
24	赵永飞,周建东,刘志刚,等. 农业机械推广鉴定大纲薯类收获机:DG/T 078—2022 [S]. 北京:中国标准出版社,2022.

水平 Level	试验因素 Experimental factors
水平 Level	A：线速度 Line speed/（m·s^-1）	B：振幅 Amplitude/mm	C：挖掘深度 Digging depth/mm
1.682	0.40	30	260
1	0.37	26	248
0	0.32	20	230
-1	0.27	14	212
-1.682	0.24	10	200

水平 Level	试验因素 Experimental factors
水平 Level	A：线速度 Line speed/（m·s^-1）	B：振幅 Amplitude/mm	C：挖掘深度 Digging depth/mm
1.682	0.40	30	260
1	0.37	26	248
0	0.32	20	230
-1	0.27	14	212
-1.682	0.24	10	200

序号 Number	试验因素 Experimental factors			B_R：破皮率 Skin breaking rate/%	L_R：损失率 Loss rate/%
序号 Number	A/（m·s^-1）	B/mm	C/mm	B_R：破皮率 Skin breaking rate/%	L_R：损失率 Loss rate/%
1	0.32	20	230	1.07	0.93
2	0.32	20	230	1.12	0.85
3	0.37	14	212	1.47	1.51
4	0.24	20	230	0.97	0.51
5	0.32	20	260	1.63	1.35
6	0.32	20	230	1.10	0.88
7	0.32	30	230	1.82	0.78
8	0.37	14	248	1.34	1.76
9	0.32	20	230	1.09	0.95
10	0.27	14	212	1.24	0.57
11	0.40	20	230	1.58	1.92
12	0.32	20	230	1.14	0.86
13	0.32	20	200	1.78	0.87
14	0.27	14	248	1.05	0.62
15	0.27	26	212	1.54	0.54
16	0.37	26	212	1.85	1.35
17	0.32	10	230	0.89	1.03
18	0.32	20	230	1.06	0.95
19	0.27	26	248	1.51	0.58
20	0.37	26	248	1.96	1.57
21	0.32	20	230	1.15	0.97
22	0.32	20	230	1.05	0.99
23	0.32	20	230	1.08	0.92

序号 Number	试验因素 Experimental factors			B_R：破皮率 Skin breaking rate/%	L_R：损失率 Loss rate/%
序号 Number	A/（m·s^-1）	B/mm	C/mm	B_R：破皮率 Skin breaking rate/%	L_R：损失率 Loss rate/%
1	0.32	20	230	1.07	0.93
2	0.32	20	230	1.12	0.85
3	0.37	14	212	1.47	1.51
4	0.24	20	230	0.97	0.51
5	0.32	20	260	1.63	1.35
6	0.32	20	230	1.10	0.88
7	0.32	30	230	1.82	0.78
8	0.37	14	248	1.34	1.76
9	0.32	20	230	1.09	0.95
10	0.27	14	212	1.24	0.57
11	0.40	20	230	1.58	1.92
12	0.32	20	230	1.14	0.86
13	0.32	20	200	1.78	0.87
14	0.27	14	248	1.05	0.62
15	0.27	26	212	1.54	0.54
16	0.37	26	212	1.85	1.35
17	0.32	10	230	0.89	1.03
18	0.32	20	230	1.06	0.95
19	0.27	26	248	1.51	0.58
20	0.37	26	248	1.96	1.57
21	0.32	20	230	1.15	0.97
22	0.32	20	230	1.05	0.99
23	0.32	20	230	1.08	0.92

来源 Source	B_R：破皮率 Skin breaking rate
来源 Source	平方和 Sum of squares	自由度 Degree of freedom	均方 Mean square	F值 F value	P值 P value
模型 Model	2.250 0	9	0.249 5	122.30	<0.000 1**
A	0.387 9	1	0.387 9	190.12	<0.000 1**
B	0.808 2	1	0.808 2	396.11	<0.000 1**
C	0.017 7	1	0.017 7	8.68	0.011 4*
AB	0.007 2	1	0.007 2	3.53	0.082 9
AC	0.005 0	1	0.005 0	2.45	0.141 5
BC	0.020 0	1	0.020 0	9.80	0.008 0**
A²	0.074 8	1	0.074 8	36.67	<0.000 1**
B²	0.144 8	1	0.144 8	70.96	<0.000 1**
C²	0.766 6	1	0.766 6	375.73	<0.000 1**
残差 Residual	0.026 5	13	0.002 0
失拟项 Lack of fit	0.016 7	5	0.003 3	2.72	0.100 4
误差 Error	0.009 8	8	0.001 2
总和 Total	2.270 0	22