Cooling ring cover structure of speed reducer

The utility model relates to a cooling ring cover structure of a speed reducer, which comprises a main box body, a liquid adding port is arranged on the upper side of the main box body, a circulatingpump is arranged in the main box body, a liquid outlet and a liquid inlet are respectively arranged on the main box body, telescopic rubber pipes are respectively arranged on the liquid outlet and theliquid inlet, and a left wing bending box and a right wing bending box are respectively arranged on two sides of the main box body. The left wing bending box and the right wing bending box are both rotationally connected with the main box body, the left wing bending box and the right wing bending box are in pipeline communication with the liquid outlet and the liquid inlet through telescopic rubber pipes respectively, and a connecting pipe and a hook-and-loop fastener are arranged between the left wing bending box and the right wing bending box respectively. Protruding cooling fins are arranged outside the main box bo