Lubricating structure of rolling bearing

• Main Author: FUKADA, KIKUO
• Format: Patent
• Language: Chinese; English
• Published: 30.08.2024
• 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; MECHANICAL ENGINEERING; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; WEAPONS

This oil-gas lubrication structure for a rolling bearing (1) is provided with: a slope section (2ab) provided on the outer diameter surface (2a) of an inner ring (2) of the rolling bearing (1) so as to be continuous with an inner ring raceway surface (2aa); a nozzle member (6) disposed along the inclined surface portion (2ab) with a gap (delta) therebetween; and an oil gas discharge hole (8) which is provided in the nozzle member (6) and which opens toward the gap [delta]. When the amount of protrusion of the nozzle member (6) into the bearing is A and the axial center position of the rolling element (4) of the rolling bearing (1) is B, the nozzle member (6) is disposed such that the ratio (A/B) of the amount of protrusion of the nozzle member (6) to the axial position of the rolling element (4) is in the range of 0.5-0.7. 本发明的滚动轴承(1)的油气润滑结构包括：斜面部(2ab)，其在滚动轴承(1)的内圈(2)的外径面(2a)上与内圈滚道面(2aa)连续设置；喷嘴部件(6)，其沿着斜面部(2ab)隔开间隙δ配置；以及油气的喷出孔(8)，其设置在上述喷嘴部件(6)上，向间隙δ开口。当将喷嘴部件(6)向轴承内部的突出量设为A、将滚动轴承(1)的滚动体(4)的轴方向中心位置设为B时，以喷嘴部件(6)