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新闻详情
微耕机刀组的选用原则与建议
时间:2012-10-10 来源:本站 作者:管理员

微耕机刀组的选择可以根据使用场;配套机组的动力、耕宽及耕深;材质这三个方面来选择。

 
一、根据微耕机的使用场地选择刀组
 
1、若用于杂草较少的旱地深松开荒,宜选用深耕刀 刀组;若用于土质较松软的干地、旱地、沙土地、荒地、 大棚作业等,选用旱地耕刀刀组。
2、若用于杂草较少的湿地旋耕或泥脚较硬的稻桩田,选用湿地弯刀刀组;
3、若用于泥脚较硬的稻桩田与土 质松软的湿地或带杂草的浅水田和水泡田,选用复合 式弯刀刀组
4、若用于泥脚土质较软的浅水田或用于耕后田块的碎土平整,选用水田轮:
此外,湿地弯刀刀组也町用于土质松软的旱地耕作。但建议最好根据不同的土壤选用适应的刀组,既可获得好的耕作质量也可减少刀具的损伤。
 
二、根据配套机组的动力、耕宽及耕深选择刀组 
 
一般来说,刀组旋转直径越大,耕深越深,消耗动力越大;刀组耕宽越大,消耗动力也越大。此外,还应考虑变速箱体齿轮所能承受的最大扭矩等因素。由于现在还没有比较实用的理论或经验公式用于刀组的受力分析,因此,对配套机组生产厂家来说要根据设计经 验或实验研究来选用刀组。对普通用户来说,尽量选用厂家原配型号的刀组,避免现“小马拉大车,大马拉小车”现象。
 
三、根据材质选择刀组 
 
在使用过程中,最容易现的失效现象是刀片断裂、刀柄脱落、刀组焊接件脱焊、锈蚀等。为减少这些现象的发生,刀组的刀片应用65mn钢锻压并经热处理 制成,刀组轴、刀柄应用45钢,并应有可靠的焊接