EMU bogie and rubber-tired train

An EMU bogie, comprising:

• a framework which comprises two side beams opposite to each other and cross beams connected to the two side beams;
• a first EMU wheelset which comprises a first axletree, and a first EMU wheel and a second EMU wheel which are arranged at two ends of the first axletree, the first axletree being connected to first ends of the two side beams;
• a second EMU wheelset which comprises a second axletree, and a third EMU wheel and a fourth EMU wheel which are arranged at two ends of the second axletree, the second axletree being connected to second ends of the two side beams;
• and
• an EMU steering driving device which comprises a driving part and a transmission part, the driving part being used for providing steering power, and the transmission part being connected to the driving part, the first EMU wheelset and the second EMU wheelset, and being used for transmitting the steering power provided by the driving part to the first EMU wheelset and the second EMU wheelset;
• wherein the driving part comprises:
• a driving motor communicating with a controller and used for outputting a steering force;
• and
• a power steering gear having an output end connected to the transmission part and used for changing a direction of the steering force output by the driving motor to provide steering power for the transmission part,
• wherein the transmission part comprises:
• a power steering swing arm, a first end of the power steering swing arm being connected to the output end of the power steering gear;
• a power steering drawbar, a first end of the power steering drawbar being connected to a second end of the power steering swing arm;
• a first tire steering swing arm fixedly connected to the first EMU wheel and comprising two first sub-swing arms, a first included angle being formed between the two first sub-swing arms, and a second end of the power steering drawbar being connected to one of the first sub-swing arms;
• a second tire steering swing arm fixedly connected to the second EMU wheel and comprising two second sub-swing arms, a second included angle being formed between the two second sub-swing arms, and the other first sub-swing arm of the first tire steering swing arm being connected to one of the second sub-swing arms through a first transmission rod;
• a third tire steering swing arm fixedly connected to the third EMU wheel and comprising two third sub-swing arms, a third included angle being formed between the two third sub-swing arms, and the other second sub-swing arm of the second tire steering swing arm being connected to one of the third sub-swing arms through a second transmission rod;
• and
• a fourth tire steering swing arm fixedly connected to the fourth EMU wheel and comprising two fourth sub-swing arms, a fourth included angle being formed between the two fourth sub-swing arms, and the other third sub-swing arm of the third tire steering swing arm being connected to one of the fourth sub-swing arms through a third transmission rod.