农业机械学报2025，Vol.56Issue(11)：135-145,11.DOI:10.6041/j.issn.1000-1298.2025.11.012
丘陵山区苜蓿捡拾打捆裹包一体机设计与试验
Design and Experiment of Alfalfa Picking,Baling and Wrapping Integrated Machine in Hilly and Mountainous Areas
摘要
Abstract
Aiming to address the issue of high difficulty in mechanical silage harvesting of alfalfa and high loss rate of bales in hilly and mountainous areas,an alfalfa picking,baling and wrapping integrated machine was designed,based on the topography of hilly and mountainous areas in Gansu Province and the agronomic requirements for alfalfa silage.The machine simultaneously performed picking,shredding,baling,net wrapping,and film wrapping operations on windrowed alfalfa.The pickup device,utilizing a swing roller and pusher disc cam mechanism as its key component,featured a working width of 0.7 m,a tine spacing of 58 mm,and a rotational speed of 124 r/min.The fixed blades and moving blades of the shredding device collaboratively achieved alfalfa shredding and forced feeding,the sliding shredding angle was 40°,the number of fixed blades was 13,and the feeding roller speed was 300 r/min.The baling device was mainly composed of the opening cylinder,drum,gap sensing device and frame,the alfalfa was rolled into a cylindrical bale with a diameter of 500 mm and a height of 700 mm by the baling chamber formed with 10 drums arranged in a vortex pattern.The speed ratio of the support roller and the wrapping arm in the film wrapping device was set at 0.55,the gear ratio of the film-guide differential unit was 1.5,and the film stretch ratio was 50％.The whole machine field performance experiment was conducted on alfalfa fields in hilly and mountainous areas with an undulating slope ranging from 0°to 15°,the results showed that when the operating speed was 1.3～1.4 m/s and the density of windrowed alfalfa was approximately 1.5 kg/m,the bale density was 566.02 kg/m3,with a total loss rate of 3.67％,meeting the requirements of alfalfa wrapping silage.关键词
丘陵山区/苜蓿/打捆裹包/捡拾装置/缠膜装置Key words
hilly and mountainous areas/alfalfa/baling and wrapping/pickup device/film-wrapping device分类
农业科技引用本文复制引用
张克平,李升升,李晓康,安晶..丘陵山区苜蓿捡拾打捆裹包一体机设计与试验[J].农业机械学报,2025,56(11):135-145,11.基金项目
甘肃省科技重大专项计划项目(23ZDNA004)、甘肃省科技计划项目(25CXNA028)、甘肃省现代寒旱特色农业牛产业技术体系建设专项(GSARS-01)和甘肃旱作农业装备产业研究院建设项目 （23ZDNA004）
