LUBRICATION SYSTEM FOR A PLANETARY GEAR

• Main Authors: FORSBERG JORGEN, SETTERSJO HAKAN
• Format: Patent
• Language: Chinese; English
• Published: 15.05.2020
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

A lubrication system for a planetary gear (7) comprising a sun gear (9) rotationally fixedly arranged on a first shaft (14), a number of planet gears (11) rotatably supported by planet gear bearings (21) and a planet gear carrier (12) rotationally fixedly arranged on a second shaft (15). The lubrication system comprises a lubrication passage (35) adapted to direct lubricant from one of the shafts(14,15) to the planet gear bearings (21). The lubrication passage (35) comprises a first passage part (38) extending through the planet gear carrier (12) from an inlet opening (39) to a first outlet opening (40). The first passage part (38) further comprises a second outlet opening (41) adapted to direct lubricant to an engagement area (25) between the sun gear (9) and the planet gears (11). The second outlet opening (41) is located at a shorter radial distance from a rotation axis (18) of the sun gear (9) than the first outlet opening (40) and a flow restrictor (60) is arranged in the first passage part (38)between t