The invention relates to the technical field of
vehicle driving mechanisms, in particular to a driving and braking integrated gearbox, a
bogie, a driving
system and a railway vehicle. The gearbox comprises a gearbox shell, a gear set, an
inertia mechanism and a braking device, the input end of the gear set is connected with an input shaft, and the output end of the gear set is connected with a mandrel; according to the gearbox, the
inertia mechanism and the braking device are added to the gearbox, the
inertia mechanism is connected with the gear set and can rotate along with the gear set, the braking device is connected with the inertia mechanism and used for applying braking force to the inertia mechanism so as to
brake the gear set and the mandrel, and therefore the braking function of the gearbox is achieved; driving and braking integration of the gear box is achieved, a
brake does not need to be installed at other positions of a vehicle
system, the cost of independently installing a
braking system is reduced, meanwhile, a
vehicle driving system is more integrated, the situation that the independent
brake occupies the space of a
bogie is avoided, and light-weight design of a vehicle is achieved easily.