等滑切角锯齿型刀片优化设计与试验

doi:13733/j.jcam.issn.2095-5553.2024.01.007

摘要/Abstract

摘要： 基于已设计出的藤茎类秸秆切割刀片，创建切割功耗模型，将切割功耗最小作为目标函数并进行优化计算，获得最优滑切角为40°。对切割功耗的三个主要影响因素进行正交试验，结果表明:当秸秆含水率增加时，切割功耗随含水率的增加而增大；当单次切割量增加时，切割功耗也随之增大；相同的切割情况下，滑切角为40°的锯齿型刀片的切割功耗最低、切割效率最高。两种统计学方法分析的结果都表明:刀片种类对切割功耗的影响最显著，然后是秸秆含水率，最后是单次切割量。最优组合为:秸秆含水率为20%左右，单次切割量为6kg，滑切角为40°的锯齿型刀片。

关键词: 等滑切角, 锯齿型, 刀片, 优化设计

Abstract: Based on the designed cane straw cutting blade, a cutting power consumption model is created. The minimum cutting power consumption is taken as the objective function and optimized. The optimal sliding angle is 40°. Orthogonal experiments were carried out on the three main influencing factors of cutting power consumption. The results showed as follows: Firstly, when the water content of straw increased, the cutting power consumption increased with the increase of water content. Secondly, when the amount of single cutting increased, the cutting power consumption also increased. Thirdly, in the same cutting condition, the serrated blade of 40° sliding angle had the lowest cutting power consumption and the highest cutting efficiency. The results of the two statistical methods showed that the blade type had the most significant effect on the cutting power consumption, then the water content of straw, and finally the single cutting amount. The optimum combination was that the water content of straw was about 20% and the single cutting amount was 6 kg, the blade type was serrated blade of 40° sliding angle.

Key words: equal slidingcutting angle, sawtooth type, blade, optimal design

中图分类号:

S225

郭茜, 高巍, 张西良. 等滑切角锯齿型刀片优化设计与试验[J]. 中国农机化学报, 2024, 45(1): 49-53.

Guo Qian, Gao Wei, Zhang Xiliang. Optimal design and experiment of serrated blade with equal sliding cutting angle[J]. Journal of Chinese Agricultural Mechanization, 2024, 45(1): 49-53.

参考文献

［1］闫秀芳. 盘刀式铡草机切碎器的虚拟设计及其性能研究［D］. 呼和浩特: 内蒙古农业大学， 2008.Yan Xiufang. Virtual design and performance study of flywheeltype cutterhead［D］. Hohhot: Inner Mongolia Agricultural University， 2008.
［2］郭茜，张西良，徐云峰，等. 藤茎类秸秆专用切割刀片的设计与试验［J］. 农业工程学报， 2014， 30（23）: 47-53.
Guo Qian, Zhang Xiliang, Xu Yunfeng, et al. Design and experiment of a special cutting blade for cane straw ［J］. Transactions of the Chinese Society of Agricultural Engineering, 2014, 30(23): 47-53.
［3］李双，梁栋，张喜瑞，等. 往复切削式香蕉茎秆切片分离机设计与试验［J］. 中国农机化学报， 2018, 39（6）: 23-27.
Li Shuang， Liang Dong， Zhang Xirui， et al. Design and experiment of reciprocating cutting banana stem splitter ［J］. Journal of Chinese Agricultural Mechanization， 2018, 39（6）: 23-27.
［4］宋占华，宋华鲁，闫银发，等. 棉花秸秆往复式切割器动刀片优化设计［J］. 农业工程学报， 2016, 32（6）: 42-49.
Song Zhanhua， Song Hualu， Yan Yinfa， et al. Optimizing design on knife section of reciprocating cutter bars for harvesting cotton stalk ［J］. Transactions of the Chinese Society of Agricultural Engineering， 2016, 32（6）: 42-49.
［5］杨康，赵丽梅，张大斌，等. 秸秆粉碎机刀刃曲线的优化设计［J］. 机械设计与研究， 2017， 33（6）: 130-133.
Yang Kang， Zhao Limei， Zhang Dabin， et al. Optimization design of blade curve of straw shredder ［J］. Machine Design and Research， 2017， 33（6）: 130-133.
［6］ Berthet M A, Gontard N, AngellierCoussy H. Impact of fibre moisture content on the structure/mechanical properties relationships of PHBV/wheat straw fibres biocomposites ［J］. Composites Science and Technology， 2015， 117: 386-391.
［7］ Sitz E D, Bajwa D S. The mechanical properties of soybean straw and wheat straw blended medium density fiberboards made with methylene diphenyl diisocyanate binder ［J］. Industrial Crops and Products， 2015， 75: 200-205.
［8］ Belhadj B， Bederina M， Montrelay N，et al. Effect of substitution of wood shavings by barley straws on the physicomechanical properties of lightweight sand concrete ［J］. Construction and Building Materials, 2014, 66: 247-258.
［9］ Babaei I， Madanipour M， Farsi M， et al. Physical and mechanical properties of foamed HDPE/wheat straw flour/nanoclay hybrid composite ［J］. Composites: Part B， 2014, 56: 163-170.
［10］严导淦. 对数螺线及其物理意义［J］. 物理与工程， 2013， 23（5）: 5-9.〖JP2〗Yan Daogan. About the logarithmic spiral curve ［J］.〖JP〗 Physics and Engineering, 2013， 23（5）: 5-9.
［11］李林，闫秀芳，崔红梅，等. 圆盘式切碎器动刀片等滑切角刀刃曲线的研究［J］. 农村牧区机械化， 2010（6）: 16-20.
［12］郭茜，张西良，徐云峰，等. 茄子藤秸秆微观结构及剪切力学特性［J］. 江苏农业科学， 2018， 46（6）: 189-192.Guo Qian， Zhang Xiliang， Xu Yunfeng， et al. Study on microstructure and mechanical properties of eggplant straw ［J］. Jiangsu Agricultural Sciences， 2018， 46（6）: 189-192.
［13］赵新军，孙宝天. 等滑切角圆盘式饲草切碎器的剪切功率［J］. 农业机械学报， 1995， 9（3）: 62-67.
Zhao Xinjun, Sun Baotian. A study on the cutterhead energy consumption of forage chopper ［J］. Transactions of the Chinese Society for Agricultural Machinery, 1995， 9（3）: 62-67.
［14］郭艳. 盘刀式切碎器刀刃曲线对切割功耗的影响［J］. 吉林农业大学学报， 2003， 35（1）: 101-110.
Guo Yan. Effect of flywheel cutterhead with different curve edges on cutting energy consumption ［J］. Journal of Jilin Agricultural University, 2003， 35（1）: 101-110.
［15］ Rodriguez M， Rodriguez A， Bayer Resplandis J, et al. Determination of corn stalk fibers strength through modeling of the mechanical properties of its composites ［J］. Bioresources， 2010， 5（4）: 2535-2546.
［16］ Zhao S， He P， Qiu S， et al. Longterm effects of potassium fertilization and straw return on soil potassium levels and crop yields in northcentral China ［J］. Field Crops Research， 2014， 169: 116-122.

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