Affiliation:
1. College of Mechanical and Electrical Engineering, Hunan Agriculture University, Changsha 410128, China
2. Modern Agricultural College, Yiyang Vocational & Technical College, Yiyang 413049, China
3. Collaborative Innovation Center of Southern Chinese Grain and Oilseed, Changsha 410128, China
Abstract
In view of the current situation of the low degree of mechanized harvesting of rape shoots, combined with the study of the material characteristics of rape shoots, the core components of the harvester were designed and analyzed, and a rape shoots harvester was designed and manufactured. The front-end cutter of the harvester cuts the stalks of rape shoots, while the clamping and conveying device transports and steers the stalks flexibly to achieve low damage and orderly harvesting. The forward speed of the machine, the speed of the clamping belt and the clamping gap were selected as the test factors, while the rate of missed cut, missed clamping, and plant damage were selected as the evaluation indexes for the single-factor and response surface optimization tests. Field validation test showed that the machine could effectively cut and transport rape shoots at a forward speed, clamping belt speed and clamping gap of 0.42 m/s, 0.89 m/s and 11.43 mm, respectively (missed cut rate, 2.63%; missed clamp rate, 4.84%; and plant damage rate, 5.22%). This study provides a reference for the research and optimization of the flexible harvesting device for rape shoots.
Funder
National Key R&D Program of China
Teaching Reform Research Project of Universities in Hunan Province
Excellent Postgraduate Courses in Hunan Province in 2019
Subject
Plant Science,Agronomy and Crop Science,Food Science
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