Reduction case structure

The utility model provides a reduction case structure, includes casing and lower casing, last casing on be provided with mobilizable closing plate, seal plate connection have the observation board, the both sides of observation board be provided with the slide rail and be used for cooperating with the closing plate, closing plate below be provided with the sieve, the bottom of lower casing be provided with the fan, the fan just to the below of sieve. The utility model discloses following beneficial effect has: change original closing plate thread tightening into sideslipping formula, the simultaneous observation window directly sets up transparently, and the convenience is observed at any time, and when the closing plate was opened, pressure sensor switched on with the fan, and the high temperature inside the speed reducer transmits away through the trompil of fan and sieve. 种减速器箱体结构，包括上壳体和下壳体，所述的上壳体上设置有可移动的密封板，所述的密封板连接有观察板，所述的观察板的两侧设置有滑轨用于与密封板配合，所述的密封板下方设置有筛板，所述的下壳体的底部设置有风扇，所述的风扇正对于筛板的下方。本实用新型具有以下有益效果：把原有的密封