The utility model relates to a positive and negative two-way rotating double axis knife straw pulverizing machine. The upper and lower part of the crushing cavity are respectively installed with an active shaft and a driven shaft. The active shaft and the driven shaft are outside the crushing cavity in the same direction. The protruding ends of the active shaft are fixed with a belt wheel and an active gear on the protruding end of the active shaft, and the protruding ends of the driven shaft are fixed on the protruding end of the driven shaft. The housing between the driven gear, the driving gear and the driven gear is equipped with a primary shaft and a secondary axis, and the primary shaft is fixed with the first transmission gear and the second transmission gear. The secondary shaft is fixed with third transmission gears and fourth transmission gears, the active gear is meshed with the first transmission gear, and the second transmission is carried out. The gear is meshing with the third transmission gear, the fourth transmission gear is meshed with the driven gear, the pulley and the power output shaft of the fully fed combine harvester are connected by the belt drive, and the utility model adopts a multistage gear drive mode instead of the existing belt transmission mode, and the structure is more firm and reliable, and the crushing effect is better. One
【技术实现步骤摘要】
正反双向旋转双轴刀秸秆粉碎还田机
本技术涉属于农机领域,特别是一种正反双向旋转双轴刀秸秆粉碎还田机。
技术介绍
由于秸秆中含有大量的有机物,从发展循环农业经济角度考虑,秸秆还田是一项具有重大意义的作业模式,围绕秸秆粉碎机的研制一直是国内研究的重要方向之一;目前市场上生产的秸秆粉碎机主要有两种形式的机具:一是配套拖拉机的秸秆粉碎机,该机具是在收获后针对田间秸秆单独进行粉碎还田;二是配套联合收割机的秸秆粉碎机,开发出的粉碎机主要是以一个安装多把动刀的刀辊作为主要工作部件,通过与联合收割机排草口相连接,从而对收割机排草口排出的秸秆进行粉碎和抛洒。现有一种适用于联合收割机的秸秆粉碎机(专利号为CN201520855013.7),其包括上下两个转轴,转轴之间通过齿轮传动连接,工作中,秸秆首先从联合收割机排草口排出进入粉碎机,受到安装在粉碎机双轴上高速旋转的切割刀片产生冲击力进行第一次粉碎;两个转轴之间通过双槽皮带轮和单槽皮带轮配合,直接采用皮带传动连接,使主动轴和从动轴均同向旋转,从而在无差速情况下对秸秆进行第二次切碎;现有的此秸秆粉碎机,存在以下不足:1、因采用皮带传动方式,固定牢固度不足,长期使用易发生打滑、磨损,如在切割秸秆时故障,则会堵塞影响出料;2、采用皮带传动方式,使得主动轴和从动轴两个转轴同向旋转,经实践同向旋转下主动轴和从动轴的刀片无法对保证粉碎效率,造成部分秸秆未经充分粉碎就落入机壳下方堆积,造成出料厚度不均匀,抛洒范围也受到制约。
技术实现思路
针对上述现有技术的不足,本技术要解决的技术问题在于提供一种结构简便,粉碎效果更好的秸秆粉碎还田机。为此本技 ...
【技术保护点】
1.正反双向旋转双轴刀秸秆粉碎还田机,包括机壳,所述机壳内设有粉碎腔,所述粉碎
【技术特征摘要】
1.正反双向旋转双轴刀秸秆粉碎还田机,包括机壳,所述机壳内设有粉碎腔,所述粉碎腔的上端与全喂入式联合收割机的排草口连接,粉碎腔的上部和下部分别安装有主动轴和从动轴,所述主动轴与从动轴交错排列,所述主动轴上沿轴向均匀布设有若干组粉碎刀片,任意一组所述的粉碎刀片包括至少两个位于同一圆周上的长条刀片,所述从动轴上沿轴向均匀布设有若干个切割刀片,任意两个切割刀片之间对应有一个长条刀片,所述主动轴和从动轴于同向伸出破碎腔外,...
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