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平行四连杆型拨禾轮得到了最广泛的应用,但是使用这种拨禾轮,不论谷物直立或是倒伏,甚至在收割机组低速收割时,都会造成谷粒明显的损失。因此,提高这种拨禾轮的效能是极其迫切的任务。在图1中设;1—拨禾轮辐条;2—拨杆;O_1—拨禾轮轴;O_2—拨杆轴;R=O_1O_2—辐条长;C—拨杆端点;r=O_2C—拨杆长;U_0—机器行进速度;ω和u—拨禾轮旋转角速度和圓周速度;A和B—拨杆的侧棱;α—拨杆的安装角;α_0—
The parallel four-bar reel is the most widely used, but with this reel, whether grain stands upright or lodging, there is a significant loss of grain even when the harvester is harvesting at low speeds. Therefore, improving the effectiveness of this reel is an extremely urgent task. In Figure 1 set; 1- Wo Wo spokes; 2 lever; O_1-reel shaft; O_2-lever shaft; R = O_1O_2-spoke length; C-lever end point; r = O_2C-lever length ; U_0-machine travel speed; ω and u-reel rotation angular velocity and circumferential speed; A and B-side lever ribs; α-lever mounting angle; α_0-