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Design and experiment of anti-vibrating and anti-wrapping rotary components for subsoiler cum rotary tiller

International Journal of Agricultural and Biological Engineering 2019年第4期12卷 47-55页

作者： Kan Zheng Allen D.McHugh Hongwen Li Qingjie Wang Caiyun Lu Hongnan Hu Wenzheng Liu Zhiqiang Zhang Peng Liu Jin He College of Engineering China Agricultural UniversityBeijing 100083China International Maize and Wheat Improvement Centre(CIMMYT) Dhaka 1213Bangladesh

The commonly used subsoiling cum rotary tiller machine(SRT)in Northern China is a combination of subsoiler and horizontal rotary tiller,however backfilling of the subsoiling slot,excessive vibration and plant residue wrapping on rotary components has been rarely ***,the rotary components and assembly were redesigned to address these issues and to an SRT fitted with IT225 short curve rotary blades behind the V-shape subsoiling slots and IIT245 long curve rotary blades between the *** and short blades were fitted on a rotor in a double helix,with optimal spiral angles of 65° and 90°,and phase angle of 147°and 180°,*** with the commonly used SRT(CSRT),the additional anti-wrapping cutting blades in the circumferential and axial direction of ASRT could remove hanging residue on the blade holders,wrapping on the rotor and formation of an isolation ***,the cutting edge curve of anti-wrapping cutting blades was an exponential *** tests demonstrated that the redesigned SRT with anti-vibrating and anti-wrapping rotary components(ASRT)had was a significant advancement over the ***,the working depth of rotary tillage was more stable,while other observations confirmed that backfilling of the subsoiling slot was also improved.

关键词： subsoiling rotary tiller anti-vibration anti-wrapping backfill tillage

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Development of Multi-purpose Small-sized rotary tiller for Greenhouses

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Journal of Northeast Agricultural University(English Edition) 1998年第1期5卷 48-54页

作者： Mi Bolin, Tu Chenghai, Guan Yanling, Li Bai, Zheng Qiumei (Northeast Agricultural University, Harbin 150030, P R C)

IGLP-62 multi-purpose small-sized rotary tiller is a tool of production urgently needed for “Vegetable Supplying System”in China. It is mainly used for rotary cultivation as well as for fertilizer mixing and stubble mulching in greenhouses. And it can be used for open vegetable plots and orchards as well. The machine is characterized by the integration of rotary tilling with driving. It has a good performance of clod crushing and high capacity. It is equipped with a power-take-off shaft to drive a water pump, thresher or rice mill. Thus the machine solved the long-standing problem of heavy manual labour in greenhouses. So it is a kind of ideal hand cultivation machinery of horticultural type.

关键词： rotary tiller gearbox greenhouse

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Optimal design of rotary tiller’s rotor and width proportionate to tractor power using energy method

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International Journal of Agricultural and Biological Engineering 2009年第2期2卷 1-7页

作者： Kaveh Mollazade Hojat Ahmadi Reza Alimardani Department of Agricultural Machinery Engineering Faculty of Biosystems EngineeringUniversity of TehranTehranIran

The goal of the modern farming systems is to economize energy consumption and to reduce farming *** selection and use of agricultural machines are important factors to achieve this *** tillers are tillage tools that are used for accomplishment of both the primary and secondary tillage *** the widespread application of rotary tillers and wide use of modern tractors in Iran,optimal design of these machines is *** in this study,the optimal working width and optimal diameter of the rotary tiller's rotor proportionate with the power of the MF 399 tractor was delineated based on the energy *** theoretical method is based on the specific works of tractor and rotary *** showed that the optimal working width and optimal diameter of the rotary tiller’s rotor with maximum of forward speed 1 m/s for tractor was 240 cm and 6.27 cm,respectively.

关键词： rotary tiller optimal design working width rotor MF 399

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