Cutter-disk hob-seat installing and positioning device

The utility model relates to a cutter-disk hob-seat installing and positioning device which is applied to all types of soil-pressure, mud-water and hard-rock shield-header industries and comprises a pressure plate, a first nut, a first gasket, a stud, a rod, lifting bolts, a soleplate, a bolt, a second gasket, a positioning plate, a second nut and a third gasket, wherein the pressure plate and the soleplate are connected and fixed through the first nut, the first gasket and the stud, the soleplate and the positioning plate are connected and fixed through the bolt and the second gasket, the rod and the positioning plate are connected and fixed through the second nut and the third gasket, and two lifting bolts are arranged on the pressure plate. The device can completely avoid the defects of a traditional mode and has the advantages of attractive appearance, high installation accuracy, simpleness in use, convenience in operation and reusability, the damage to a welded cutter-seat parent body is avoided, the pro