目前，国内谷物烘干机械已经基本上能够自给自足，但是由于市场上大部分都是种子加工成套设备，价格高，能耗大，还不能完全适应小型种子生产和经营部门的要求。因此，研制开发出一种实用性强、市场前景好的小型谷物烘干机械。该机采用滚筒式干燥机的结构．热风对流式的干燥方法以及间歇式谷物干燥的工作方式，其配用动力是1．5kW，220V的单相交流电动机，滚筒半径为0．5m，转速为30r／rain，风机转速为560r／min，具有结构简单、使用方便和干燥速度快等优点。工作时，滚筒顺时针回转(进料时滚筒顺时针旋转)，但装有风机的圆筒不旋转。滚筒外侧正中安装有圆环形齿圈，与滚筒焊为一体，它被小齿轮驱动用于带动滚筒回转。在滚筒外侧的两端安装有钢圈，用作滚筒回转的轨道。在滚筒内壁镶有纵向抄板，当滚筒回转时，滚筒底部的种子被抄板炒起，随着滚筒的回转，抄板中的种子渐渐均匀撒落。处于均匀撤落状态的种子受到热风的吹拂，使种子中的水分蒸发出来。出料时，滚筒逆时针旋转，谷物顺着导料板滑出。

    为保证滚筒中谷物种子均匀撒落，滚筒转速n应保持不变，使其转动平稳。转筒由安装于轴向两端的4个滚轮支撑，转筒正中安装有齿圈，电动机经皮带将动力传递到减速箱。减速箱的输出端接小齿轮，在齿轮的驱动下，齿圈旋转带动转筒回转，如图5所示。1)取滚筒转速n=30r／min。2)带的选型与设计。电机的转速为1430r／min，滚筒的转速为30r／min，故总传动比为i=1430／30=47．7。小型滚筒式谷物烘干机创新之处： 1)采用220V单向交流电源供电，凡是有交流电源的地方都可使用，为用户提供了方便。 2)整机装在地排车下盘上，移动方便。 3)结构简单，维修方便。 4)整机效率高，且节能。
At present, the domestic grain drying machine has largely self-sufficient, but most of them are seed processing complete sets of equipment on the market, the price is high, large energy consumption, also can't fully meet the needs of a small seed production and operation department. Therefore, developed a kind of strong practicability and good market prospect of small grain drying machines. This machine adopts the structure of the drum dryer. Hot air convection drying method and the way the intermittent grain drying work, with its power is 1.5 kW, single-phase 220 v ac motor, roller radius of 0.5 m, the speed of 30 r/rain, fan speed of 560 r/min, has simple structure, convenient use and the advantages of fast drying speed. Work, drum clockwise rotation (feed roller clockwise), but not rotating cylinder with fan. The center of the cylinder outer install a circular ring gear, the and drum welding as an organic whole, it is small gear drive is used to drive the roller rotation. On both ends of the outside of the drum with rims, used as a roll