Turbine guide bearing mounting structure

The utility model discloses a turbine guide bearing mounting structure. The device comprises a pump shaft, a water guide bearing and a fixed shell, pump shaft penetrating through fixed shell, whereinthe water guide bearing is sleeved on the pump shaft and is arranged in the fixed shell, the water guide bearing comprises a guide bearing and a water guide bearing shell, an inner ring of the guide bearing is connected with the pump shaft in a thermal expansion or bonding mode, the water guide bearing shell is arranged on an outer ring of the guide bearing and is fixedly connected with the fixedshell, and a gap is arranged between the water guide bearing shell and the outer ring of the guide bearing. The guide bearing and the water guide bearing shell are installed in a split mode, and whenthe water guide bearing is abraded, maintenance can be completed only by machining the outer ring of the guide bearing and/or replacing the water guide bearing shell. Compared with the part cost and the maintenance cost of the