Five-gear transmission transmission system

A five-gear transmission transmission system belongs to the technical field of transmissions. The transmission system is few in idle gear pair, low in noise and compact in structure in the operation process. The transmission system comprises an input shaft assembly, an intermediate shaft assembly, an output shaft assembly and a reverse gear shaft assembly, the input shaft assembly is connected with the power transmission system, the input shaft assembly transmits power to the output shaft assembly through the intermediate shaft assembly, the output shaft assembly outputs the power, a plurality of gear pairs are arranged between the input shaft assembly and the intermediate shaft assembly, any one of the gear pairs is regulated and selected through a shifting fork to transmit the power, and gear shifting is achieved. And the reverse gear shaft assembly is in transmission connection with the input shaft assembly. According to the transmission system, an output torque increasing scheme is adopted, idle gear pair