新型青贮饲料收获机滚筒切碎器的设计与试验研究

Design and Experimental study on New Type Shredding Drum of Cylinder-type Forage Harvester

切碎滚筒是青贮饲料收获机的重要工作部件,直接影响收获机的功率消耗、切碎性能及抛送性能。本研究在试验的基础上,设计了新型平板刀式滚筒切碎器,分析了滚筒切碎器的结构参数和运动参数对切碎性能的影响,确定了平板刀式滚筒切碎器较优的结构和工作参数。试验研究表明:滚筒转速和喂入量是影响功耗的重要因素,饲草的切碎均匀度与滚筒转速呈正相关。

Shredding drum is a major operating unit of cylinder-type forage harvester and it could influence the mincing performance, expulsion performance and power consumption of machine directly. In this article, the new plane table-knife drum cutter was designed based on experiments, followed the effects of structure parameters and mobile parameters of cutter on the working performance were analyzed and the best parameters of structure and working condition were ascertained. Experimental results showed that power consumption of machine was ascended by increased rotating speed and feed quantity. And when the rotating speed of cutter drum was quicker, the cutter quality was better and the expulsion performance was higher.