Combined type stone ballast hopper car suitable for railway transportation and dismounting and mounting method of combined type stone ballast hopper car

The invention discloses a combined stone ballast hopper car suitable for railway transportation and a dismounting and mounting method thereof, and relates to the field of railway vehicles, the combined stone ballast hopper car comprises a flatcar transportation module and a hopper assembly module, the flatcar transportation module is detachably connected with the hopper assembly module, and the flatcar transportation module comprises a car body assembly, a locking system, a braking system and a deformation system. The funnel assembly module comprises an assembly vehicle body, an assembly platform, a bottom door opening and closing transmission system and an air control system; the locking system comprises two forms of olecranon locks which are respectively arranged at the corner and the two sides of the middle part of the vehicle body assembly; the combined vehicle body comprises a funnel assembly, and the funnel assembly penetrates through the hollow area of the vehicle body assembly; the combined platform c