Design and Experiment on Cylinder-type and articulated-type cutterhead of Harvester for Fodder Rape

Jiang, Yajun; Chen, Yan; Hu, Zhigang

doi:10.1145/3453187.3453365

Cited by 2 publications

(1 citation statement)

References 1 publication

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“…The clearance between the blade and the cutter head can be varied by adjusting the bolt. In addition, different cutter types and cutter head shapes can be obtained by changing blades and cutter discs [16]. Moreover, the influence of different cavity shapes on the fluid can be analyzed by changing the shell.…”

Section: Structure Design and Working Principlesmentioning

confidence: 99%

Working Mechanism and Parameter Optimization of a Crushing and Impurity Removal Device for Liquid Manure

Chen

et al. 2022

Agriculture

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Aiming to solve the problems of easy clogging and high energy consumption of multi-way fertilization devices for liquid manure, a crushing and impurity removal device for liquid manure was designed by combining the physical characteristics of liquid manure and impurities, and building the corresponding test bench. The proposed device could crush flexible impurities such as straw and filoplume and intercept hard impurities with high density. The main structural parameters of the device were determined according to the survey analysis and the theoretical design. The influences of cutter head shape, cutter edge angle, cutter shaft speed, and cutting clearance on the disqualification rate and energy consumption of straw crushing were obtained by a single-factor experiment. Furthermore, the Box–Behnken central composite design method of the response surface was employed to investigate the effects of the cutter shaft speed, cutting clearance, and cutter edge angle on the disqualification rate and energy consumption of straw crushing. In addition, the working parameters of the device were optimized by employing the response surface method. On this basis, the mathematical relationship model among the disqualification rate, energy consumption, and all influencing factors was established. The results show that the optimal combination of working parameters includes a cutter shaft speed of 312 r/min, a cutting clearance of 1.4 mm, and a cutter edge angle of 45°. From the prediction model, the predicted failure rate was 4.15%, and the predicted energy consumption was 47.53 J. The verification experiment was then performed under the optimal combination of working parameters. The obtained disqualification rate was 4.08% and the energy consumption was 47.56 J, which met the design and work requirements.

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Section: Structure Design and Working Principlesmentioning

confidence: 99%

Working Mechanism and Parameter Optimization of a Crushing and Impurity Removal Device for Liquid Manure

Chen

et al. 2022

Agriculture

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Tool–Branch Interaction Mechanism of Impact-Pruning Process Based on Finite Element Method

Liu,

Ban,

Zhang

et al. 2024

Forests

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This study addresses the necessity for a more profound comprehension of the mechanical behavior and fracture mechanisms of tree branches during impact pruning. The methodologies of the research are to develop a failure model of impact-cutting mechanics and a tool–branch interaction model using the finite element method (FEM). The validation of the model was conducted through the measurement of cutting forces and cross-sectional morphology in the field. A comparative analysis between experimental and simulation data revealed an average relative error below 15% for cutting force and below 10% for the cross-sectional ratio, thereby confirming the accuracy of the model. The findings indicate the presence of plastic deformation within the cutting zone, with elastic deformation prevailing in the surrounding region. As the branch approaches the yield point, the phenomenon of plastic deformation intensifies, resulting in a notable increase in internal energy demands, particularly in larger branches. The optimal pruning diameter was identified as 15 mm. An increase in cutting velocity raises the peak cutting force by 460.9 N per m/s, while a 1° increase in the blade wedge angle adds 34.9 N. A reduction in normal stress by increasing the tool back angle improves energy efficiency. This study provides insights to optimize pruning practices, enhancing efficiency and precision.

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Design and Experiment on Cylinder-type and articulated-type cutterhead of Harvester for Fodder Rape

Cited by 2 publications

References 1 publication

Working Mechanism and Parameter Optimization of a Crushing and Impurity Removal Device for Liquid Manure

Working Mechanism and Parameter Optimization of a Crushing and Impurity Removal Device for Liquid Manure

Tool–Branch Interaction Mechanism of Impact-Pruning Process Based on Finite Element Method

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