Vibration characteristics of pneumatic combined precision rapeseed seeder and its effect on seeding performance

被引：0
|
作者：
Liao Y.-T. [1 ,2 ]
Qi T.-X. [1 ]
Liao Q.-X. [1 ,2 ]
Zeng R. [1 ,2 ]
Li C.-L. [1 ]
Gao L.-P. [1 ]
机构：
[1] College of Engineering, Huazhong Agricultural University, Wuhan
[2] Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River, Ministry of Agriculture and Rural Affairs, Wuhan
来源：
Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition) | 2022年 / 52卷 / 05期
关键词：
Agricultural mechanization engineering; Combined precision rapeseed seeder; Pneumatic seeder; Seeding performance; Vibration;
D O I：
10.13229/j.cnki.jdxbgxb20210001
中图分类号：
学科分类号：
摘要：
Vibrations of pneumatic combined precision rapeseed seeder by internal and external excitation will affect the performance of seeder. In this study, the vibration characteristics of the direct seeder were measured and analyzed through field test, and the influence of the vibration characteristics on seeder performance was investigated by vibration seeding test bench. Time-domain analysis results of vibration signals tested in the field showed that the vertical vibration of the machine is much significant than the horizontal and forward direction, while the vibration on the uncultivated land is larger than that on the cultivated land. Furthermore, the amplitude of vibration increases with the increase of engine speed, rotary tillage speed and forward speed. A multiple linear regression model was established between the RMS value of vertical vibration acceleration and engine speed, rotary tillage speed and forward speed. The standard partial regression coefficient analysis showed that the rotary tillage speed and forward speed for uncultivated land are the main factors affecting the vibration amplitude of the machine. On the other hand, for cultivated land, the rotary tillage speed influenced the most on the machine vibration. Frequency domain analysis of vibration signals showed that the main frequency of vibration of the seeder was within 0~150 Hz, and the frequency distribution was related to the frequency multiplications of the working speed of engine and rotary tillage, but was hardly influenced by forward speed and the ground state. The vibration bench test results showed that vibration could reduce the multiple seeds holding probability at high level of negative pressure. When vibration frequency were 10 Hz and 20 Hz, the qualified index of seed metering device was significantly reduced. It was also observed that appropriate medium frequency vibration could improve single seed holding probability under negative pressure. What's more, the critical negative pressure of seed holding was variant under different vibration conditions. The results can provide basic parameters for optimization and improvement of operation performance of combined precision rapeseed seeder. © 2022, Jilin University Press. All right reserved.
引用
收藏
页码：1184 / 1196
页数：12
相关论文
共 30 条
  • [21] Gao Zhi-peng, Xu Li-zhang, Li Yao-ming, Et al., Vibration measure and analysis of crawlertype rice and wheat combine harvester in field harvesting condition, Transactions of the CSAE, 33, 20, pp. 48-55, (2017)
  • [22] Somchai Chuan-Udom, Development of a cutter bar driver for reduction of vibration for a rice combine harvester, KKU Res J, 15, 7, pp. 572-580, (2010)
  • [23] Kang Tae Hwan, Yutaka Kaizu, Vibration analysis during grass harvesting according to ISO vibration standards, Computers and Electronics in Agriculture, 79, 2, pp. 226-235, (2011)
  • [24] Ahmadiani H, HasSan-Beygi S R, Ghobadian B., Investigating a power tiller handle and seat vibration on transportation mode, INMATEH-Agricultural Engineering, 16, 4, pp. 194-206, (2014)
  • [25] Zhang Xiao-dong, Li Cheng-hua, Li Jian-qiao, Et al., Mathematic vibration model of spade punch planter of maize, Transactions of the Chinese Society for Agricultural Machinery, 45, 2, pp. 88-93, (2014)
  • [26] Wang Qi, Zhu Long-tu, Li Ming-wei, Et al., Vibration characteristics of corn no-tillage fingertype precision planter and its effect on seeding performance, Transactions of the CSAE, 35, 9, pp. 9-18, (2019)
  • [27] Liu Yue-qin, Study on vibration characteristics of air suction no-tillage planter and its effect on seed metering performance, (2017)
  • [28] Tian Bo-ping, Liao Qing-xi, Huang Hai-dong, Et al., Design of 2BFQ-6 precision planter for rapeseed, Transactions of the Chinese Society for Agricultural Machinery, 39, 10, pp. 211-213, (2008)
  • [29] Liao Qing-xi, Yang Song, Liao Yi-tao, Et al., Modeling for performance and parameters of pneumatic seed-metering system of precision planter for rapeseed, Transactions of the CSAE, 29, 17, pp. 9-15, (2013)
  • [30] Zhang Tao, Liu Fei, Zhao Man-quan, Et al., Movement law of maize population in seed room of seed metering device based on discrete element method, Transactions of the CSAE, 32, 22, pp. 27-35, (2016)
123