Gear reducer capable of rapidly adding oil and exhausting air

The utility model relates to the technical field of gear reducers, in particular to a gear reducer capable of rapidly oiling and exhausting. Comprising a mounting assembly, a transmission assembly, an air compression assembly and an oiling assembly, the transmission assembly, the air compression assembly and the oiling assembly are all fixedly mounted on the mounting assembly, the air compression assembly and the oiling assembly are both located above the transmission assembly, and the transmission assembly is in transmission connection with the air compression assembly. The air compression pump, the filter head, the three-way pipe, the air delivery pipe, the sealing cover, the sealing ring and the exhaust valve are used in cooperation, external air is injected into the gear reducer through the air compression pump through the three-way pipe, the air delivery pipe and the sealing cover, and then hot air in the gear reducer is exhausted through the exhaust valve. Therefore, circulation of air in the gear speed