甘薯双垄旋耕起垄覆膜机的设计及试验研究

针对传统甘薯双垄旋耕起垄覆膜机具存在结构强度差、作业效率不高、垄体不规范等问题,研究设计一款与55~80kW大型拖拉机配套的新型甘薯双垄旋耕起垄覆膜机。采用理论设计与试验相结合的方法,对起垄覆膜的影响因子及各部件间最优结构参数、工作参数、协调关系进行研究分析。结果表明:甘薯种植起垄覆膜不规范、效果差主要与机具前进速度、压膜机构高度及旋耕深度有很大关系,主次因素顺序为:前行速度压膜机构高度旋耕深度,优选组合为:前行速度0.3m/s、压膜机构高度360mm、旋耕深度400mm。

Design and experiment of sweet potato transplanting operation machine with rotary tillage,ridging and covering film functions

In order to improve the mechanization transplanting level of sweet potato in major sweet potato producing areas and solve outstanding issues currently existed in mechanization transplanting of sweet potato including not enough ridging height,ridge density difference,low reliability,wheels going in ditches easy to cause damage and break ridges,low operating efficiency,etc.By means of combination of agricultural machinery and agronomy,a new type 1GQL-2 sweet potato transplanting compound operation machine matched with high-powered tractor of 55.13-80.85 kW was developed.The results show that:Compared with traditional segment operating machine,the machine can complete two ridges of rotary tillage,ridging,furrowing,shaping,covering film,suppressing and covering soil once,owning fewer farm working times and resulting in saving energy and reducing consumption,lightening roller compaction of farmland.This machine can solve effectively the traditional bottleneck problem,such as ridging height not enough,the ridge body of poor compactness,easy to collapse,destroyed ridge body side,non-standard river ridge distance easy to break,easy to wrinkle,not enough height and thickness,low reliability and low efficiency of the farm work problems.In conclusion,the preferred parameters are:the moving speed was 0.3 m/s,height of part of pressing film was 360 mm,and the rotary tillage depth was 400 mm.This study would provide theoretical basis and references for the innovation development and optimization of sweet potato ridging and laminating machine.