Title:
JOURNAL BEARING
Document Type and Number:
Japanese Patent JPS62237111
Kind Code:
A
Abstract:
PURPOSE:To control vibration of a pad due to minute self-excited vibration of a rotor by scraping off a metal portion of the pad extending over the whole width of the pad to increase oil film pressure. CONSTITUTION:Each inside diameter side of end surface portion on inlet side for lubricating oil 7 of pads 2a-2c among pads 2a-2e, which are positioned on the upper half side, is scraped off. Lubricating oil 7 is let flow in at the right end surface of the pad 26 and drawn by rotation of a rotor 1 to enter a gap between the inner surface of the pad 2b and the rotor 1. When the lubricating oil flows through the gap between the pad 2b and the rotor 1, it forms a wedge-shaped oil film in the gap, with a supporting point 6 of the pad 2b as a vertex and with the end surface portion of the pad 2b as a base. Accordingly, oil film pressure is increased, so that the pads are not excited by minute vibration of the rotor to improve stability.
Inventors:
SAKUTA OSAMU
Application Number:
JP7810886A
Publication Date:
October 17, 1987
Filing Date:
April 07, 1986
Export Citation:
Assignee:
HITACHI LTD
International Classes:
F16C33/10; F16C17/03; F16C33/00; (IPC1-7): F16C17/03; F16C33/10
Attorney, Agent or Firm:
Katsuo Ogawa