西北寒旱农区胡麻滚勺式精量穴播器的设计及试验

doi:10.13229/j.cnki.jdxbgxb.20211270

Abstract

Abstract:

In view of the practical problems such as large seed consumption， large variation coefficient of hole number and lack of seed in hole holes， a roller scoop type precision hole sowing seeder with scoop tongue was designed in Gansu mulch planting environment. By analyzing the operation principle of the seed rower and seed rowing process， the main parameters such as the composition of the rolling spoon assembly and the size， installation number and installation angle of the scooping spoon were determined， and the effects of the main spoon depth， the installation angle of the scooping spoon and the angular speed of the seed rowing wheel on the seed rowing performance of the seed rower were analyzed by the response surface method. The test showed that when the depth of main scoop was 6.68 mm， the installation angle of scoop was 7.62° and the angular speed of seed releasing wheel was 3.22 rad/s， the qualified rate of hole number was 92.5%， the rate of missed seeding was 2.54%， the rate of reseeding was 4.96%， and the seed releasing performance was better. This study can provide a basis for the design of precision hole-sowing seeding device for flaxes.

Key words: agricultural mechanical engineering, flaxes, cavity seeders

CLC Number:

S223.2

Lin-rong SHI,Wu-yun ZHAO. Design and test of rolling spoon type flaxes precision hole sower for caraway in northwest cold and arid agricultural region[J].Journal of Jilin University(Engineering and Technology Edition), 2023, 53(9): 2706-2717.

Figures/Tables 17

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水平	主勺深度X₁/mm	舀种勺安装角X₂/（°）	穴播器角速度X₃/（rad·s^-1）
-1	5.9	0	2
0	6.7	5	4
1	7.6	10	6

序号	试验因素			试验结果
序号	X₁/mm	X₂/（°）	X₃/（rad·s^-1）	穴粒数合格率Y₁/%	漏播率Y₂/%	重播率Y₃/%
1	5.90	10	4	86.67	13.33	0.00
2	7.60	5	6	6.67	0.00	93.33
3	6.75	5	4	83.33	3.33	13.34
4	6.75	0	6	6.66	0.00	93.34
5	5.90	5	2	76.67	16.67	6.66
6	6.75	10	6	66.67	23.33	10.00
7	6.75	0	2	16.67	0.00	83.33
8	6.75	10	2	90.00	3.33	6.67
9	7.60	5	2	63.34	3.33	33.33
10	5.90	5	6	73.33	3.33	23.34
11	7.60	0	4	16.67	0.00	83.33
12	6.75	5	4	83.33	3.33	13.34
13	7.60	10	4	56.67	0.00	43.33
14	6.75	5	4	83.33	3.33	13.34
15	6.75	5	4	66.67	0.00	33.33
16	6.75	5	4	73.33	13.33	13.34
17	5.90	0	4	60.00	6.66	33.34

方差来源	自由度	平方和	均方和	F	P	显著性
总和	16	13 799.40
模型	9	12 927.34	1436.37	11.53	0.0020	**
X₁	1	2938.79	2938.76	23.59	0.0018	**
X₂	1	5000.50	5000.50	40.14	0.0004	**
X₃	1	1089.04	1089.04	8.74	0.0212	*
X₁X₂	1	44.42	44.42	0.3566	0.5692
X₁X₃	1	710.76	710.76	5.71	0.0483	*
X₂X₃	1	44.36	44.36	0.3560	0.5695
X₁²	1	236.70	236.70	1.90	0.2105
X₂²	1	1289.14	1289.14	10.35	0.0147	*
X₃²	1	1289.51	1289.51	10.35	0.0147	*
残差	7	872.06	124.58
失拟项	3	650.02	216.67	3.90	0.11
误差	4	222.04	55.51

方差来源	自由度	平方和	均方和	F	显著性
总和	16
模型	9	1695.79	6.74	0.0099	**
X₁	1	4511.55	17.93	0.0039	**
X₂	1	6805.94	27.05	0.0013	**
X₃	1	1012.95	4.03	0.0848
X₁X₂	1	11.09	0.044	0.8397
X₁X₃	1	469.16	1.86	0.2144
X₂X₃	1	11.16	0.044	0.8392
X₁²	1	191.61	0.76	0.4118
X₂²	1	1066.61	4.24	0.0785
X₃²	1	957.63	3.81	0.0920
残差	7	251.62
失拟项	3	480.54	6.01	0.0579
误差	4	79.92

Design and test of rolling spoon type flaxes precision hole sower for caraway in northwest cold and arid agricultural region

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