Dead axle of rail vehicle, rail vehicle, and rail transportation system

A dead axle of a rail vehicle, comprising:

• an axle body connected to a vehicle frame of the rail vehicle;
• a running wheel rotatable about an axis extending axially through the running wheel and transversely swingably mounted on the axle body, wherein the running wheel is supported on a rail beam along which the rail vehicle travels;
• a guiding frame mounted on the axle body rotatably relative to the axle body in a horizontal direction;
• a horizontal wheel disposed on the guiding frame;
• and
• a connecting rod component comprising a first transverse pull rod, a second transverse pull rod, and at least a first steering arm, wherein a first end of the first transverse pull rod is pivotally mounted on the guiding frame, the second transverse pull rod is transmission-connected to the first transverse pull rod and the running wheel,
• wherein a first end of the first steering arm is transmission-connected to the running wheel, a second end of the first transverse pull rod is pivotally connected to a middle of the first steering arm, and a second end of the first steering arm is transmission-connected to the second transverse pull rod, and
• wherein when the rail vehicle turns left, the horizontal wheel cooperates with the rail beam to drive the guiding frame to swing and to drive the first transverse pull rod to move together, and the second transverse pull rod is driven by the first transverse pull rod to drive the running wheel to swing to the left, and when the rail vehicle turns right, the horizontal wheel cooperates with the rail beam to drive the guiding frame to swing and to drive the first transverse pull rod to move together, and the second transverse pull rod is driven by the first transverse pull rod to drive the running wheel to swing to the right.