Rui Yang*, Pengcheng Zhai* and Qingxi Liao Pages 12 - 17 ( 6 )
Background: With the development of modern agriculture, metering devices are being widely used to accelerate the speed of planting and to provide an accurate sowing. Moreover, the seed metering device is very important since China is one of the important agricultural production countries. Especially, rapeseed metering device is desired for accurate planting because the rapeseed is so small that it is difficult to control in the planting process.Objective: Thus, rapeseed metering device design and analysis have become an important topic for researchers and engineers to provide a useful method. Methods: This paper aims to review various patents of metering devices which have been extensively studied in the recent years. Moreover, we focus on the recent developments on the rapeseed metering models and new designs, including the new structures and design theories. Results: The new rapeseed metering devices are more useful and effective to obtain accurate sowing. Conclusion: Recent patents and research articles on metering devices are investigated to illustrate the development of the rapeseed metering device designs.
Agricultural machines, design and theories of metering device, pneumatic seed-metering device, precision seeding, rapeseed, rapeseed metering device.
School of Sciences, Wuhan University of Technology, Wuhan, Hubei 430070, School of Sciences, Wuhan University of Technology, Wuhan, Hubei 430070, College of Engineering, Huazhong Agricultural University, Wuhan, Hubei 430070