Automatic gap adjusting type bearing

Abstract

Abstract PURPOSE: To control vibration caused by a rotor of a tilting pad type bearing, by using a spring between each piston and check valve in oil hole made on a pad holding ring. CONSTITUTION: Lubricating oil flows, through oil holes 10, 12, 15 made on a pad holding ring 6, in each hole 6a on the ring while pushing a check valve 4 against a spring 5 and presses a piston 3 toward a rotor shaft 1, thus the pad 2 being pressed to the shaft with a force F 2 . A force produced by the circumferential speed of the shaft and the viscosity of oil works as a force F 1 on the pad 2 in the wedge direction to keep it away, until F 1 is harmonize with F 2 for stabilization. Since an increase of oil pressure P 1 increases the pressure difference between P 1 and P 2 , the gap between the shaft 1 and pad 2 is decreased and vibration is effectively decreased. COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Yoshio Sera

Bibliographic Details