The invention provides a heavy thrust wheel independent suspension, and belongs to the technical field of underground coal mine support carrier crawler walking parts. In order to achieve the technicalpurposes that a novel crawler walking part thrust wheel is provided, and the novel crawler walking part thrust wheel is high in yield strength, easy to disassemble and assemble, and convenient to useand maintain, the heavy thrust wheel independent suspension comprises a thrust wheel portal frame, high-yield-strength thrust wheels, high-lightness roller bearings, step seal rings, thrust wheel shafts, thrust wheel end covers, irregular portal frame fixing plates and high-strength bolts. The thrust wheel shafts, the high-lightness roller bearings, the step seal rings and the thrust wheel end covers are installed in inner holes of the high-yield-strength thrust wheels in sequence, and thrust wheel supports are clamped in gaps between the two ends of the high-yield-strength thrust wheels andfixed with thrust wheel fixing plates, the high-strength bolts and the thrust wheel shafts.