1QL-70型固定垄起垄机设计与试验

Design and Experiment of 1QL-70 Bed Former for Permanent Raised Beds

针对国内西北一年一熟绿洲农业区固定垄保护性耕作起垄机具缺乏的问题,设计了1QL-70型固定垄起垄机。分析和确定了起垄犁、垄面成形装置等关键部件的结构参数。采用熟地型起垄犁,具有较强的翻土和碎土能力;组合式垄面成形装置通过与圆柱形镇压滚筒配合,在起垄时不仅具有较好的垄面成形能力,而且能对垄床起到很好的镇压作用。田间试验表明:1QL-70型固定垄起垄机的起垄和修垄效果良好,起、修垄作业后垄形尺寸和垄面平整度能较好地满足河西走廊地区的农艺要求。

Focusing on the problem of lacking suitable bed former for permanent raised beds （PRB） in one crop a year oasis agricultural region of northwest China, 1QL - 70 bed former for PRB was designed, and the parameters of key components were analyzed and confirmed for bed-forming plough, combined forming-pressing device etc. Through adopting cultivated-type plough, the new bed-former could plough and smash the soil effectively. Combining with cylinder roller, the combined forming-pressing device could not only form the bed shape, but also press the beds effectively. Experiment results showed that the bed former was effective in forming and renovating the beds. Bed dimension and surface evenness after forming and renovating could meet the requirements of the agronomy in Hexi Corridor.