| 加压条件下气力轮式精密排种器性能分 |
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| 引用本文： | 孙裕晶,马成林,李萌. 加压条件下气力轮式精密排种器性能分[J]. 农业机械学报, 2009, 40(7): 72-77 |
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| 作者姓名： | 孙裕晶 马成林 李萌 |
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| 作者单位： | 1. 吉林大学工程仿生教育部重点实验室,长春,130025
2. 吉林大学生物与农业工程学院,长春,130025 |
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| 基金项目： | 国家科技支撑计划,吉林省科技发展计划 |
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| 摘 要： | 针对研制的气力轮式精密排种器,采用均匀设计法设计试验,运用均匀设计软件UST 1.0建立了大豆排种性能指标数学模型,分析气力条件下排种器设计参数对排种性能的影响规律.分析表明:气力条件下,排种性能指标主要受气压和作业速度影响,气压范围为1.4～1.8 kPa时粒距合格率达到85%以上,满足8 km/h速度以上大豆精密播种;充种角和清种角变化对排种性能影响不显著,充种角和清种角优化区域与常压条件下排种试验优化结果一致:充种角为46.35°、清种角为55°;气流方向对排种性能没有显著影响.
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| 关 键 词： | 排种器 性能 加压条件 均匀设计 数学模型 |
on Performance of an Air-blowing Vertical-rotor Type Precision Seed-metering Device |
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| Sun Yujing,Ma Chenglin,Li Meng. on Performance of an Air-blowing Vertical-rotor Type Precision Seed-metering Device[J]. Transactions of the Chinese Society for Agricultural Machinery, 2009, 40(7): 72-77 |
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| Authors: | Sun Yujing Ma Chenglin Li Meng |
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| Affiliation: | 1.Key Laboratory of Bionic Engineering;Ministry of Education;Jilin University;Changchun 130025;China2.College of Biological and Agricultural Engineering;China |
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| Abstract: | Uniform design was used to test the soybean seeding performance of an air-blowing vertical-rotor type precision seed-metering device in laboratory.Based on test results,regression models of seeding performance were constructed by uniform design software UST 1.0.The effects of designing and operating parameters of air-blowing vertical rotor seeder on its performance were investigated.The results suggest that seeding performance is sensitive to air pressure and operating speed in air-blowing condition.The qua... |
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| Keywords: | Seed-metering device Performance Air-blowing condition Uniform design Mathematical model |
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