电驱式青贮饲料打捆裹膜机设计与试验  

Design and experiment of silage baling and wrapping machine with electric driving

作　　者：冯斌 张涛 梁涛 张莹[2] 唐兴隆[2] 王关平 FENG Bin;ZHANG Tao;LIANG Tao;ZHANG Ying;TANG Xing-long;WANG Guan-ping(College of Electromechanical Engineering,Gansu Agricultural University,Lanzhou 730070,China;Chongqing Academy of Agricultural Sciences,Chongqing 401329,China)

机构地区：[1]甘肃农业大学机电工程学院,兰州730070 [2]重庆市农业科学院,重庆401329

出　　处：《吉林大学学报（工学版）》2024年第2期564-573,共10页Journal of Jilin University:Engineering and Technology Edition

基　　金：甘肃农业大学人才专项项目(GAU-KYQD-2020-33);重庆市农业科学院市级财政专项项目(NKY-2022AC014)。

摘　　要：针对青贮饲料打捆、裹膜作业环节分离和配套动力大等问题,设计了一款电驱式青贮饲料打捆裹膜机。通过分析整机工作原理和核心部件作业过程,确定了上料与打捆装置动力、输送带线速度、打捆腔室撑开角、裹膜2~3层所需时间等主要参数,并进行了机架满载可靠性模拟和整机打捆裹膜性能试验。结果表明:机架在满载工况下最大应力为116.4 MPa,最大变形量为0.71 mm,满足材料力学性能;样机成捆率为97.8%,规则捆率高达100%,草捆密度为148.2~162.5 kg/m^(3),草捆抗摔率为84.0%。整机运行平稳可靠、振动小,草捆抗摔率较低的原因为秸秆过于均匀且短小,以及缠线不完全,后期可在粉碎处理和缠线机构进行优化。Aiming at the problems of silage baling and film wrapping link separation,large supporting power,an silage baling and wrapping film machine with electric drive was designed.By analyzing the working principle of the machine and the operation process of the core components,the main parameters such as the power of feeding and baling device,the linear speed of conveyor belt,the opening angle of the baling chamber,and the time required for 2~3 layers of film wrapping were determined,the reliability simulation of the frame at full load and the performance test of the whole machine were carried out.The results show that the frame maximum stress was 116.4 MPa and the maximum deformation was 0.71 mm under full load condition,which meet the mechanical properties of the material.The bundling rate was 97.8%,the regular bundling rate was up to 100%,the bale density was 148.2~162.5 kg/m^(3),and the straw bale resistance rate was 84.0%.The whole machine runs smoothly and reliably with small vibration,the low straw bale resistance rate may be caused by the straw being too uniform and short,and the twine was not complete,which can be optimized in the later crushing treatment and twine mechanism.

关 键 词：农业机械 青贮饲料 缠线机构 打捆裹膜 有限元 试验 

分 类 号：S817.1[农业科学—畜牧学] S226.7[农业科学—畜牧兽医]