16F + 16R direct-connection four-wheel-drive gearbox device with front differential mechanism and rear differential mechanism

The invention discloses a 16F + 16R direct-connection four-wheel-drive gearbox device with a front differential mechanism and a rear differential mechanism, which comprises a front transmission system assembly, a bowing and twisting mechanism hinge assembly, a gearbox and rear axle assembly, a power output transmission assembly and a tail end transmission assembly, the bowing and waist twisting mechanism hinge assembly comprises a waist twisting cylinder, a bowing shell and a waist twisting shell, the bowing shell and the waist twisting shell are installed outside the waist twisting cylinder, a front box shell of the front transmission system assembly is fixedly connected with the waist twisting shell, the waist twisting shell is connected with the waist twisting cylinder through a positioning piece and cannot rotate relative to the waist twisting cylinder, and the bowing shell can rotate relative to the waist twisting cylinder. The gearbox and rear axle assembly comprises a reversing shell and a rear gearbox