锥体帆布带式排种器参数优化与试验
为使锥体帆布带式排种器性能达到育种试验播种要求,该文对设计的锥体帆布带式排种器相关结构进行了分析与参数优化试验。通过对该排种器的泄种、分种、携种环节中种子的力学、运动学及空间排布情况分析,选取出对锥体帆布带式排种器作业性能有显著影响的参数,通过单因素试验和图表分析将参数影响程度进行量化,确定了影响排种性能的主要参数有：锥体转速、锥体倾角和楔形环域单位排布量。通过三因素二次正交旋转设计试验,建立了因素与试验指标（排种均匀性变异系数）的回归方程;经优化计算得出：当锥体转速为3.46 rad/s,锥体倾角为45.8°,楔形环域单位排布量为7粒/cm时,排种器的性能综合评价指标达到育种试验最佳水平。该...
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| Published in | 农业工程学报 Vol. 32; no. 3; pp. 6 - 13 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
青岛农业大学机电工程学院,青岛,266109%济南二机床集团有限公司,济南,250022
2016
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1002-6819 |
| DOI | 10.11975/j.issn.1002-6819.2016.03.002 |
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| Abstract | 为使锥体帆布带式排种器性能达到育种试验播种要求,该文对设计的锥体帆布带式排种器相关结构进行了分析与参数优化试验。通过对该排种器的泄种、分种、携种环节中种子的力学、运动学及空间排布情况分析,选取出对锥体帆布带式排种器作业性能有显著影响的参数,通过单因素试验和图表分析将参数影响程度进行量化,确定了影响排种性能的主要参数有：锥体转速、锥体倾角和楔形环域单位排布量。通过三因素二次正交旋转设计试验,建立了因素与试验指标（排种均匀性变异系数）的回归方程;经优化计算得出：当锥体转速为3.46 rad/s,锥体倾角为45.8°,楔形环域单位排布量为7粒/cm时,排种器的性能综合评价指标达到育种试验最佳水平。该排种技术在2BZH-6型株行育种条播机上进行了推广应用,经田间试验验证,最佳参数组合下锥体帆布带式排种器不存在伤种和存种现象,作业性能与锥体格盘式排种器相比提升明显。该研究为现有育种条播机排种部件的改进设计提供了参考。 |
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| AbstractList | S223.2+6; 为使锥体帆布带式排种器性能达到育种试验播种要求，该文对设计的锥体帆布带式排种器相关结构进行了分析与参数优化试验。通过对该排种器的泄种、分种、携种环节中种子的力学、运动学及空间排布情况分析，选取出对锥体帆布带式排种器作业性能有显著影响的参数，通过单因素试验和图表分析将参数影响程度进行量化，确定了影响排种性能的主要参数有：锥体转速、锥体倾角和楔形环域单位排布量。通过三因素二次正交旋转设计试验，建立了因素与试验指标（排种均匀性变异系数）的回归方程；经优化计算得出：当锥体转速为3.46 rad/s，锥体倾角为45.8°，楔形环域单位排布量为7粒/cm时，排种器的性能综合评价指标达到育种试验最佳水平。该排种技术在2BZH-6型株行育种条播机上进行了推广应用，经田间试验验证，最佳参数组合下锥体帆布带式排种器不存在伤种和存种现象，作业性能与锥体格盘式排种器相比提升明显。该研究为现有育种条播机排种部件的改进设计提供了参考。 为使锥体帆布带式排种器性能达到育种试验播种要求,该文对设计的锥体帆布带式排种器相关结构进行了分析与参数优化试验。通过对该排种器的泄种、分种、携种环节中种子的力学、运动学及空间排布情况分析,选取出对锥体帆布带式排种器作业性能有显著影响的参数,通过单因素试验和图表分析将参数影响程度进行量化,确定了影响排种性能的主要参数有：锥体转速、锥体倾角和楔形环域单位排布量。通过三因素二次正交旋转设计试验,建立了因素与试验指标（排种均匀性变异系数）的回归方程;经优化计算得出：当锥体转速为3.46 rad/s,锥体倾角为45.8°,楔形环域单位排布量为7粒/cm时,排种器的性能综合评价指标达到育种试验最佳水平。该排种技术在2BZH-6型株行育种条播机上进行了推广应用,经田间试验验证,最佳参数组合下锥体帆布带式排种器不存在伤种和存种现象,作业性能与锥体格盘式排种器相比提升明显。该研究为现有育种条播机排种部件的改进设计提供了参考。 |
| Abstract_FL | The seed-metering link plays an important role in the process of plot sowing, and mechanized seed metering can reduce the labor intensity, improve the production efficiency and ensure the work quality. The seed-breeding seed-metering technology has been vigorously developed in China. However, at present, there are many disadvantages in the existing seed-breeding seed-metering device. In order to make plot sowing seed-metering device meet the requirements of high level test in plot sowing, this paper designed a cone canvas belt type metering device which applied a new type of structural material, analyzed the characteristics of the structure, and furthermore, optimized the parameters by means of composite test. This seed-metering device could avoid the serious defects that the cone grid plate type seed-metering device has, i.e. uneven seeding and seed injury. The mechanism consisted of a seed hopper, a seed-dispersing hand shank, a canvas belt type metering mechanism, a lever mechanism of adjusting tension, a base plate of seeding device, a receiving funnel and a spiral bevel gear. The structure parameters of the cone grid plate type metering device were not easy to distinguish and appraise. Some of them directly affected the performance of seed-metering device. Before further studying the parameter, the working process was divided into 3 links, which were discharging seeds, dispersing seeds and carrying seeds. By analyzing the seed mechanics, the seed kinematics and the conditions of space configuration about discharging seeds, dispersing seeds and carrying seeds, this paper found that a number of parameters had significant impact on the operation performance of the machine, and at the same time there was internal relationship between these parameters. Aiming at comparatively evaluating these parameters, this paper conducted the single factor experiment on discharging seeds. Through the above methods, the main parameters which influenced the performances of seed metering were identified: cone rotational speed, cone angle, and unit configuration amount in wedge-shaped ring domain. Through three-factor quadratic orthogonal rotation design, the regression equation of factors and test index (coefficient of variation of seed-metering uniformity) was established; the optimization of calculation showed that when the cone speed was 3.46 rad/s, the body bottom angle was 45.8°, and the unit configuration amount in wedge-shaped ring domain was 7 grains per centimeter, the comprehensive performance evaluation index reached the best level in the breeding test. Implementing the reproducibility test showed that the result of parameter optimization was accurate. The seed-metering technology was applied by 2BZH-6 type wheat nursery seeder for planting operation in different plot area. Under the condition of wheat seedling emergence, the statistical results were obtained by measuring the distance of the wheat plants: the average plant spacing was 51 cm for the cone grid plate type seed-metering device; and the coefficient of variation of uniformity distribution was 27.43%, which was relatively low. In addition, there was no phenomenon of residual seeds or broken seeds. The research results provide the reference for improving the design of the existing wheat nursery seeder’s seed-metering component. |
| Author | 杨然兵 张翔 李建东 尚书旗 柴恒辉 |
| AuthorAffiliation | 青岛农业大学机电工程学院,青岛266109 济南二机床集团有限公司,济南250022 |
| AuthorAffiliation_xml | – name: 青岛农业大学机电工程学院,青岛,266109%济南二机床集团有限公司,济南,250022 |
| Author_FL | Yang Ranbing Li Jiandong Chai Henghui Zhang Xiang Shang Shuqi |
| Author_FL_xml | – sequence: 1 fullname: Yang Ranbing – sequence: 2 fullname: Zhang Xiang – sequence: 3 fullname: Li Jiandong – sequence: 4 fullname: Shang Shuqi – sequence: 5 fullname: Chai Henghui |
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| Keywords | agricultural machinery seed seed-metering device experiment optimization 试验 优化 排种器 结构参数 种子 structure parameter 农业机械 |
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| Notes | 11-2047/S The seed-metering link plays an important role in the process of plot sowing, and mechanized seed metering can reduce the labor intensity, improve the production efficiency and ensure the work quality. The seed-breeding seed-metering technology has been vigorously developed in China. However, at present, there are many disadvantages in the existing seed-breeding seed-metering device. In order to make plot sowing seed-metering device meet the requirements of high level test in plot sowing, this paper designed a cone canvas belt type metering device which applied a new type of structural material, analyzed the characteristics of the structure, and furthermore, optimized the parameters by means of composite test. This seed-metering device could avoid the serious defects that the cone grid plate type seed-metering device has, i.e. uneven seeding and seed injury. The mechanism consisted of a seed hopper, a seed-dispersing hand shank, a canvas belt type metering mechanism, a lever mechanism of adjusting te |
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| Publisher | 青岛农业大学机电工程学院,青岛,266109%济南二机床集团有限公司,济南,250022 |
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| Snippet | 为使锥体帆布带式排种器性能达到育种试验播种要求,该文对设计的锥体帆布带式排种器相关结构进行了分析与参数优化试验。通过对该排种器的泄种、分种、携种环节中种子的力学、运... S223.2+6; 为使锥体帆布带式排种器性能达到育种试验播种要求，该文对设计的锥体帆布带式排种器相关结构进行了分析与参数优化试验。通过对该排种器的泄种、分种、携种环节中种... |
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| SubjectTerms | 优化 农业机械 排种器 种子 结构参数 试验 |
| Title | 锥体帆布带式排种器参数优化与试验 |
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