刚柔耦合式小麦脱粒弓齿设计及试验

doi:10.13229/j.cnki.jdxbgxb20190569

吉林大学学报(工学版) ›› 2020, Vol. 50 ›› Issue (2): 730-738.doi: 10.13229/j.cnki.jdxbgxb20190569

• 农业工程·仿生工程 • 上一篇

刚柔耦合式小麦脱粒弓齿设计及试验

付君^1,^2,³(),张屹晨^1,²,程超^1,²,陈志^2,³,唐心龙⁴(),任露泉^1,²

^1.吉林大学工程仿生教育部重点实验室，长春 130022
^2.吉林大学生物与农业工程学院，长春 130022
^3.中国农业机械化科学研究院，北京 100083
^4.吉林大学农业实验基地，长春 130062

收稿日期:2019-06-05 出版日期:2020-03-01 发布日期:2020-03-08
通讯作者: 唐心龙 E-mail:fu_jun@jlu.edu.cn;tangxinlong2005@sina.com
作者简介:付君（1983-），男，教授，博士生导师.研究方向：仿生收获技术与装备.E-mail：fu_jun@jlu.edu.cn
基金资助:
国家重点研发计划项目(2017YFD0700302);吉林省省校共建计划专项项目(SXGJXX2017-6)

Design and experiment of bow tooth of rigid flexible coupling for wheat threshing

Jun FU^1,^2,³(),Yi-chen ZHANG^1,²,Chao CHENG^1,²,Zhi CHEN^2,³,Xin-long TANG⁴(),Lu-quan REN^1,²

^1.Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, China
^2.College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China
^3.Chinese Academy of Agricultural Mechanization Sciences, Beijing 100083, China
^4.Agriculture Test Station, Jilin University, Changchun 130062, China

Received:2019-06-05 Online:2020-03-01 Published:2020-03-08
Contact: Xin-long TANG E-mail:fu_jun@jlu.edu.cn;tangxinlong2005@sina.com

摘要/Abstract

摘要：

为解决小麦脱粒中脱净率低、损伤率高的问题，对小麦脱粒标准弓齿进行创新设计，并对其脱粒界面进行分析。设计刚柔耦合式弓齿小麦脱粒试验台，开展二次回归正交对比试验，损伤率明显降低，降幅最大可达到1.04%，脱净率明显提高，增幅最大可达到4.64%。试验因素对刚柔耦合式弓齿损伤率的影响程度由大到小依次为滚筒转速、喂入量和脱粒间隙，得到损伤率最优作业参数组合：滚筒转速为350 r/min，脱粒间隙为30 mm，喂入量为6 kg/s。试验因素对刚柔耦合式弓齿脱净率的影响程度由大到小依次为滚筒转速、脱粒间隙和喂入量，得到脱净率最优作业参数组合：滚筒转速为600 r/min，脱粒间隙为10 mm，喂入量为3.5 kg/s。

关键词: 农业机械化工程, 脱粒, 弓齿, 刚柔耦合, 试验优化

Abstract:

In order to solve the problems of low threshing rate and high damage rate in wheat threshing, standard bow teeth for wheat threshing were designed Innovatively, and the threshing interface was analyzed. The new rigid flexible coupling bow teeth wheat threshing test bed was designed. The quadratic regression orthogonal tests were carried out to compare the performance of the new bow teeth with that of traditional wheat threshing bow teeth. The results show that the damage rate using the rigid flexible coupling bow teeth is significantly reduced, and the maximum reduction is 1.04%, the threshing rate using the rigid flexible coupling bow teeth was significantly increased, and its maximum increase is 4.64%. The influence degree of test factors on the damage rate of the rigid flexible coupling bow teeth is successively from large to small: drum speed, feeding amount and threshing clearance. Regression model of damage rate of rigid flexible coupling bow teeth was established. The optimal operation parameter combination for minimal damage rate is obtained by response surface analysis, which drum speed is 350 r/min, threshing clearance is 30 mm, and feeding amount is 6 kg/s. The influence degree of test factors on threshing rate of rigid flexible coupling bow teeth was successively from large to small: drum speed, threshing clearance and feeding amount. Regression model of threshing rate of rigid flexible coupling bow teeth was established. The optimal operation parameter combination for maximal threshing rate is obtained by response surface analysis, which drum speed is 600 r/min, threshing clearance is 10 mm, and feeding amount is 3.5 kg/s.

Key words: agricultural mechanization engineering, threshing, bow tooth, rigid flexible coupling, test optimization

中图分类号:

S225.39

付君,张屹晨,程超,陈志,唐心龙,任露泉. 刚柔耦合式小麦脱粒弓齿设计及试验[J]. 吉林大学学报(工学版), 2020, 50(2): 730-738.

Jun FU,Yi-chen ZHANG,Chao CHENG,Zhi CHEN,Xin-long TANG,Lu-quan REN. Design and experiment of bow tooth of rigid flexible coupling for wheat threshing[J]. Journal of Jilin University(Engineering and Technology Edition), 2020, 50(2): 730-738.

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试验编号	试验因素			试验指标/%
试验编号	x₁	x₂	x₃	y₁₁	y₁₂	y₂₁	y₂₂
1	1	1	1	1.28	0.35	94.98	99.12
2	1	1	-1	1.08	0.42	95.71	99.29
3	1	-1	1	1.21	0.43	96.23	99.41
4	1	-1	-1	1.45	0.49	96.26	99.46
5	-1	1	1	1.18	0.39	94.74	98.92
6	-1	1	-1	0.83	0.38	95.39	98.53
7	-1	-1	1	1.25	0.35	94.45	98.83
8	-1	-1	-1	1.02	0.37	94.19	98.51
9	r	0	0	1.29	0.49	96.53	99.72
10	-r	0	0	0.81	0.43	94.12	98.76
11	0	r	0	0.92	0.36	95.29	98.95
12	0	-r	0	1.29	0.41	96.34	99.36
13	0	0	r	1.35	0.31	95.34	99.03
14	0	0	-r	1.25	0.37	96.43	98.89
15	0	0	0	1.11	0.34	96.51	99.08
16	0	0	0	1.02	0.35	96.00	99.16
17	0	0	0	0.99	0.36	96.20	99.05

试验指标	标准弓齿损伤率y₁₁		刚柔耦合式弓齿损伤率y₁₂
试验指标	F₁₁	P₁₁	F₁₂	P₁₂
模型	13.29	0.01	22.97	0.01
x₁	42.45	0.05	67.80	0.05
x₂	24.73	0.05	24.10	0.05
x₃	10.03	0.10	41.95	0.05
x₁x₂	0.05	0.25	50.00	0.05
x₁x₃	12.32	0.10	18.00	0.05
x₂x₃	10.05	0.10	0.50	0.25
x₁²	0.51	0.25	162.30	0.01
x₂²	0.28	0.25	5.78	0.25
x₃²	24.49	0.05	15.68	0.05
失拟项	1.69	0.25	2.80	0.25

试验指标	标准弓齿脱净率y₂₁		刚柔耦合式弓齿脱净率y₂₂
试验指标	F₂₁	P₂₁	F₂₂	P₂₂
模型	11.24	0.01	35.13	0.01
x₁	57.78	0.01	380.71	0.01
x₂	9.68	0.05	21.71	0.05
x₃	17.06	0.10	12.24	0.10
x₁x₂	9.93	0.10	12.56	0.10
x₁x₃	0.75	0.25	33.44	0.05
x₂x₃	0.70	0.25	0.10	0.25
x₁²	23.23	0.01	2.13	0.05
x₂²	4.51	0.10	0.43	0.25
x₃²	3.02	0.05	30.30	0.05
失拟项	2.34	0.25	2.66	0.25

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刚柔耦合式小麦脱粒弓齿设计及试验

Design and experiment of bow tooth of rigid flexible coupling for wheat threshing

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水平	滚筒转速 x₁/(r·min^-1)	脱粒间隙 x₂/mm	喂入量 x₃/(kg·s^-1)
r	600	30	6
1	535	22.4	5.35
0	350	20	3.5
-1	165	12.6	1.65
-r	100	10	1