A middle bearing is installed on waist of ship main propulsion shaft system

• Main Authors: CHU JIAJUN, MIAO JUN, LI HUI, CHEN SIZHEN, LUO CHUNYUN, LUO PEICHENG, WANG HONGQING, CHEN BO, SUN DONGQUAN
• Format: Patent
• Language: Chinese; English
• Published: 05.01.2021
• Subjects: BEARINGS; BLASTING; CYLINDERS; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PISTONS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SEALINGS; SHAFTS; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model discloses a waist mounting intermediate bearing of a main propulsion shaft system of a ship. The waist mounting intermediate bearing comprises a bearing seat and a bearing cover which are matched with each other, the bearing is characterized in that the bearing seat and the bearing cover are connected and fixed through a fastening bolt, and a jacking bolt is arranged on the outerside of the fastening bolt; a lower bearing bush is arranged in the bearing seat, an upper bearing bush is arranged in the bearing cover, and an elastic cylindrical pin is arranged between the bearing cover and the upper bearing bush; and matching surfaces between the upper bearing bush and the bearing cover and between the lower bearing bush and the bearing seat are spherical surfaces. The bearing pedestal has the advantages that the lubricating oil cavity in the bearing pedestal is enlarged, the cooling coil directly contacts lubricating oil for heat exchange, and the cooling effect is good; the bearing seat is sim