目前,东风—2A 型水稻插秧机配备32、40、50毫米三种取秧滑道。可是在实际机插过程中,用这三种滑道来调整秧爪入帘高度不能满足各种秧苗的需要。为了解决上述问题,我们对固定滑道作了一点小改进。其办法是:把固定滑道取下来,将固定滑道上的三个(?)9毫米的固定孔用圆锉锉成腰形长孔(见图)。安装时可使固定滑遭绕分插轮轴承座旋转一定角度,就可得到20～32毫米,30～40毫米、40～50毫米范围内 At present, Dongfeng -2A rice transplanter equipped with 32,40,50 mm three kinds of seedling ride. However, in the actual machine insertion process, the use of these three slide to adjust the height of the seedling into the curtain can not meet the needs of a variety of seedlings. In order to solve the above problems, we made some minor improvements to the fixed slide. The method is: remove the fixed slide, the fixed slide on the three (?) 9 mm fixed hole filing into a long hole with a round file (see photo). Installation can be fixed slippery around the split wheel and pinion bearing rotation angle, you can get 20 to 32 mm, 30 to 40 mm, 40 to 50 mm range