Engineering vehicle having ballast unloading device and ballast leveling device

A railway ballast car having a vehicle body comprising a ballast unloading device and a ballast leveling device, wherein the ballast unloading device comprises:

• a ballast carrying portion provided with ballast unloading openings, and the ballast carrying portion being arranged on the vehicle body;
• ballast unloading doors capable of rotating relative to the ballast carrying portion, inner unloading passages and outer unloading passages being arranged on the ballast unloading doors, and the ballast unloading doors further comprising stop portions located between the inner unloading passages and the outer unloading passages;
• wherein by means of the rotation of the ballast unloading doors relative to the ballast carrying portion, the ballast unloading doors can switch among three states:
• (1) that the inner unloading passages are opposite to the ballast unloading openings;
• (2) the outer unloading passages are opposite to the ballast unloading openings;
• and
• (3) that the stop portions are arranged on the ballast unloading openings;
• wherein the ballast leveling device comprises:
• a plough piece slidably fixed to the vehicle body so as to ascend or descend relative to the vehicle body, and a plough head used for leveling ballasts being arranged on the plough piece;
• a first crank rotationally fixed to the vehicle body;
• a connecting rod, with one end being rotationally connected with the first crank, and the other end being rotationally connected with the plough piece;
• and
• a driving part used for driving the first crank to rotate so as to drive the plough piece to ascend or descend through the connecting rod, in order to drive the plough head to ascend or descend.