锤片式秸秆粉碎机是目前应用较为广泛的一种秸秆粉碎机型，针对传统锤片工作时受力不均、波动较大进而影响秸秆粉碎效率及锤片的使用寿命等问题，根据对数螺线方程原理，确定了锤片刃线方程及其参数，利用Solidworks建立对数螺线方程曲线刃线锤片的三维实体模型，设计出一种新型的秸秆粉碎机锤片，通过试验表明，等滑切角锤片与普通矩形锤片相比，粉碎玉米秸秆时单位产量的能耗量明显减少，且当滑切角为45°时仅为0.2 kw/h，具有显著的优势，随着玉米秸秆含水率的下降，电能消耗减少；当锤片为45°滑切角，秸秆含水率为20%，锤片末端线速度为70 m/s时，单位产量的能耗量最低。

Hammer type straw crusher is the widely used a straw crushing machine， this article in view of the traditional hammer of uneven when at work， volatile， in turn， affects the straw crushing efficiency， and the problem of the service life of hammer piece according to the principle of logarithmic spiral equation， the hammer slice blade line equation and parameters， the logarithmic spiral equation was established based on Solidworks three-dimensional entity model of the curve edge line hammer， designed a new type of straw crusher hammer， through test research shows that: such as sliding compared with ordinary rectangular corner cut hammer hammer， crushing the corn straw when the amount of energy consumption per unit of production decreased significantly， advantage， and when the sliding cutting angle is 45° only 0.2 kw/h， has significant advantages， as the moisture content of corn stalk， power consumption reduced； 45° sliding cutting Angle， when the hammer straw moisture content is 20%， the end of the hammer of linear velocity of 70 m/s， the lowest amount of energy consumption per unit of production .

S817.12

十二五国家科技支撑计划项目“西北绿洲农牧循环技术集成与示范”(2012BAD14B10)；干旱生境作物学重点实验室开放基金项目(GSCS-201209)