LUBRICATING STRUCTURE OF BEARING

• Main Authors: MATSUOKA KOICHI, KIKAWA SADAYUKI, KITAMURA MINORU, HIBINO SUMIKO, NAGAYAMA TAKASHI
• Format: Patent
• Language: English
• Published: 07.10.2013
• Subjects: BEARINGS; BLASTING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; LUBRICATING; MECHANICAL ENGINEERING; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a lubricating structure of a bearing, capable of preventing wear (fretting) that occurs because an inlet of a cylinder part comes into contact with a periphery of a piston part when a tip of the piston part swings over.SOLUTION: A lubricating structure of a bearing by grease G includes two filling chambers 14a, 15a/16a, 17a which are arranged on an external side and an internal side to sandwich bearings 12, 13 therebetween and are filled with the grease G, a movable part 19 arranged movably in the filling chambers 14a, 15a for causing the grease G in the filling chambers to flow, and a fluid pressure cylinder part 21 generating a driving force by a fluid pressure of operation grease Gand transmitting the driving force to the movable part 19 for driving the movable part 19. A swinging prevention means is provided between a piston part 21c which is pushed out in a predetermined direction by the pressure of the operation grease Gsupplied and the movable part 19 which is subjected to the action to connect them with each other.