Friction type linear eddy current braking device

The invention discloses a friction type linear eddy current braking device which comprises two supporting beams and is characterized in that two transverse pull rods are arranged on the inner sides of the two supporting beams, dowel bar assemblies are arranged on the outer sides of the two supporting beams, and four sets of supporting arm assemblies are arranged at the two ends of the two supporting beams; four servo motor assemblies are arranged on the sides, connected with the supporting beams, of the four supporting arm assemblies, four suspension device assemblies are arranged on the upper end faces of the two supporting beams, two electromagnets are arranged below the two supporting beams, and a wearing plate is arranged at the bottoms of the two electromagnets. Four displacement sensor assemblies are arranged at the ends, close to the supporting arm assembly, of the two electromagnets. The train bogie and the supporting beam are connected through the air spring, the air spring is inflated and deflated t