Torque increasing structure of friction type power takeoff

The friction type power takeoff torque increasing structure comprises a box body, an output end cover, an output shaft gear, an output shaft, a gear ring, a gear engaging piston, a torque increasing assembly and a clutch friction plate set, and the output shaft gear, the torque increasing assembly, the gear engaging piston and the gear ring are sequentially installed on the output shaft; the torque increasing assembly comprises a joint piece, a sliding sleeve, a limiting bolt, a pressing bolt, a pressing spring and a tension spring. The gear-engaging piston is sleeved with the gear ring, and the joint piece is embedded into the gear-engaging piston through the second notch. A clutch friction plate set is arranged between the output shaft gear and the gear ring, a first oil channel is formed in the middle of the output shaft, and an oil channel outlet is formed between the gear engaging piston and the gear ring. Sensitivity to oil pressure is reduced through the torque increasing assembly, higher transmission