Large-load passenger elevator traction machine

The utility model belongs to the technical field of traction machines, and particularly relates to a large-load passenger elevator traction machine which comprises a machine base. The machine base is fixedly connected with a seam allowance step, a traction wheel is arranged on the outer surface of the seam allowance step, a rotating shaft is arranged in the machine base and the seam allowance step in a sleeved mode, a traction wheel end cover is arranged on the outer surface of the rotating shaft and the outer surface of the traction wheel, and the rotating shaft and the traction wheel end cover are connected with a bolt. The bolt is connected with an installation assembly matched with a traction wheel. When dismounting is needed, the bolt is rotated clockwise to be separated from the traction wheel end cover and the rotating shaft, then the installation assembly is separated from the traction wheel end cover and the traction wheel, the installation assembly is taken out, the traction wheel and the spigot ste