doi:10.13733/j.jcam.issn.2095-5553.2020.11.001

Journal of Chinese Agricultural Mechanization ›› 2020, Vol. 41 ›› Issue (11): 1-6.DOI: 10.13733/j.jcam.issn.2095-5553.2020.11.001

Online:2020-11-15 Published:2020-11-15

气力集排式精量排种器内部流场分析与试验研究

祁兵;孙旭亮;张文毅;王云霞;扈凯;严伟;

农业农村部南京农业机械化研究所;常州嘉耘机械有限公司;

基金资助:
国家重点研发计划项目(2017YFD0700704);; 国家自然科学基金项目(51505243);; 中国农业科学院基本科研业务费专项(S202002)

Abstract

摘要： 为探究气力集排式精量排种器内部流场分布规律,确定排种器合理工作压力范围,采用分割实体方法构建排种器内部流场仿真模型并进行数值模拟。仿真分析发现充种区域压力较高且具有较高的扰种气流,排种气室内部压力适中且分布均匀,轴向不同排种行存在微小差异。气室压力试验表明:压力在2.5～5.5 kPa范围内,漏播指数始终保持在平均值为0.19%的较低水平,充种性能较好;重播指数随压力升高而增大,合格指数随压力升高而降低。综合考虑田间振动等影响,合理压力范围应为2.5～5.5 kPa较为适宜。

关键词: 精量播种;气力式排种器;流场分析;漏播指数;合格指数

CLC Number:

S223.2

祁兵;孙旭亮;张文毅;王云霞;扈凯;严伟;. 气力集排式精量排种器内部流场分析与试验研究[J]. 中国农机化学报, 2020, 41(11): 1-6.

[1]	Yang Changmin, Yi Wenyu, Qiu Yunqiao, Zhao Bangtai, Cheng Fangping, Chen Chang.. Research status and development analysis of seedraising precision seeder [J]. Journal of Chinese Agricultural Mechanization, 2022, 43(4): 183-188.
[2]	Chen Weipeng, Hu Peijie, Zhang Baochang, Qiu Tianyuan, Yang Shandong.. Design and experiment of notillage precision planters with staggered seedling belts for soybean [J]. Journal of Chinese Agricultural Mechanization, 2022, 43(2): 1-7.
[3]	Xu Gaowei, Song Yumin, Chu Ruixia, Jian Shichun, Qiu Xuyun, Gao Qi.. Dynamic optimization design and experiment of fivebar transplanting mechanism with counterweight for Salvia miltiorrhiza [J]. Journal of Chinese Agricultural Mechanization, 2022, 43(2): 15-21.
[4]	Zhang Baochang, Hu Peijie, Chen Weipeng, Qiu Tianyuan, Yang Shandong.. Design and experiment of notillage fertilizer planter for wheat with wide seedling belt [J]. Journal of Chinese Agricultural Mechanization, 2022, 43(2): 22-27.
[5]	Li Xiaoran, Zhang Yinping, Diao Peisong, Zhao Dianbao, Wang Zhenwei. . Design and experiment of vegetable precision seed metering device with a single plate and multiple rows with independent airway [J]. Journal of Chinese Agricultural Mechanization, 2022, 43(2): 28-36.
[6]	Liu Zesong, Wang Haoyi, Li Hua, Wang Yongjian, Ding Yuangeng, Zeng Xiaoping. . Lightweight design of a garlic planter frame based on finite element method [J]. Journal of Chinese Agricultural Mechanization, 2022, 43(1): 27-32.
[7]	Xing Kai, Gao Xiaohong, Dai Xiaojun, Wang Qiang, Zhang Ping, Zhou Haiyan.. Numerical simulation and experiment of distribution head of airblown seed drill based on DEMCFD coupling [J]. Journal of Chinese Agricultural Mechanization, 2022, 43(1): 39-46.
[8]	Sun Mengmeng, Song Minghan, He Ruiyin, Wei Qing.. Design and test of a toothed traytype straw shifting device [J]. Journal of Chinese Agricultural Mechanization, 2021, 42(12): 30-36.
[9]	Zhang Ningning, Kang Jianming, Wang Xiaoyu, Peng Qiangji, Zhang Chunyan, Wang Yongshuo. Simulation and experiment on seeding performance of peanut roller type hill-drop planter based on EDEM [J]. Journal of Chinese Agricultural Mechanization, 2021, 42(11): 1-6.
[10]	Gu Chenjia, Xi Xiaobo, Han Lianjie, Zhang Yifu, Zhang Baofeng, Zhang Ruihong. Design and experiment research of double-axis rotary tillage machine for sowing, ditching, and covering soil [J]. Journal of Chinese Agricultural Mechanization, 2021, 42(11): 17-22.
[11]	. [J]. Journal of Chinese Agricultural Mechanization, 2021, 42(10): 22-28.
[12]	. [J]. Journal of Chinese Agricultural Mechanization, 2021, 42(10): 34-41.
[13]	. [J]. Journal of Chinese Agricultural Mechanization, 2021, 42(9): 31-36.
[14]	. [J]. Journal of Chinese Agricultural Mechanization, 2021, 42(9): 114-121.
[15]	. [J]. Journal of Chinese Agricultural Mechanization, 2021, 42(8): 1-9.

气力集排式精量排种器内部流场分析与试验研究

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments