针对目前谷物联合收割机输送槽堵塞后排草困难的问题，本文对现有的联合收割机输送槽进行了计算与分析，设计了一种具有正转输送反转退草功能的联合收割机输送槽，设计结果为：双节距精密滚子输送链轮和链条节距为38.1 mm，短节距精密滚子传动链轮和链条节距为15.875 mm，第一、二、三锥齿轮齿数分别为28、40、28，带轮及带选用普通V带B型，孔板轮，带的根数为2根，动力连接轴内花键为15 × 32 H7 × 38 H10 × 3 H11，拨叉安装半圆面内圆直径为38 mm；本文的研究结果对设计具有正转输送反转退草功能的联合收割机输送槽的反转机构的设计具有一定的参考意义。
Aiming at the problem of the difficulty of blocking the back row of the current grain combine harvester, the existing combine harvester conveyor was calculated and analyzed. A kind of combine harvester conveying trough with positive transfer and reverse transfer function was designed. Design results shown that double pitch precision roller conveyor sprocket and chain pitch 38.1 mm, Short pitch precision roller conveyor sprocket and chain pitch was 15.875 mm, the number of first, second, third bevel gear teeth is 28, 40, 28, belt wheel and belt select common V belt B type, orifice plate wheel. The number of roots was 2. The power connecting shaft spline was 15 × 32 H7 × 38 H10 × 3 H11, fork installed semicircle diameter of 38 mm plane, the research results of this paper have some reference value for the design of the transfer mechanism of the combine harvester with the transfer of the positive transfer and the reverse transfer.
