Speed reducer with structure of air cooling, damper gears and oil-collecting lubricating

The invention discloses a speed reducer with the structure of air cooling, damper gears and oil-collecting lubricating. The speed reducer with the structure of air cooling, damper gears and oil-collecting lubricating comprises a speed reducer shell, a gear driving mechanism, an air cooling device and an oil collecting device. The air cooling device comprises a draught fan, an air filter and an oil-gas separator. A second gear and a fourth gear of the speed reducer each comprises an inner ring body, an outer ring body and damping blocks. The oil collecting device comprises a circular pipe body, clapboards and an oil storage cavity. According to the speed reducer with the structure of air cooling, damper gears and oil-collecting lubricating, gears and lubricating oil in the speed reducer shell are cooled through the air cooling device, so that the problems that the temperature of the lubricating oil rises and the performance of the speed reducer is reduced due to the long-time operation of the speed reducer are solved; in addition, the damping blocks are arranged between the inner ring body and the outer ring body for damping of the gears, so that the noise during the gear engagement is reduced, and the impact damage to gear teeth is avoided; furthermore, the lubricating oil is taken to a gear engagement zone through the oil collecting device for lubricating the gears, so that the lubricating effect and the cooling effect of the gears are improved, and the service life of the gears is prolonged.