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    • 7. 发明申请
    • EPICYCLIC GEAR SYSTEM
    • 环形齿轮系统
    • WO2005038296A1
    • 2005-04-28
    • PCT/US2004/032725
    • 2004-10-04
    • THE TIMKEN COMPANYFOX, Gerald, P.JALLAT, Eric
    • FOX, Gerald, P.JALLAT, Eric
    • F16H1/28
    • F16H1/2836F16C19/386F16C33/605F16C2240/84F16C2361/61F16H57/082
    • An epicyclic gear system (A) has a sun gear (2), a ring gear (4) located around the sun gear (2), and planet gears (6) located between and engaged with sun (2) and ring (4) gears. In addition, it has a carrier (8) including a carrier flange (32) that is offset axially from the planet gears (6), and carrier pins (34) that project from the carrier flange (32) into the planet gears (6), each with a shank (40) anchored to the flange (32) and a head (42) remote from the flange (32). Between the planet gears (6) and the carrier pins (34) are double row tapered roller bearings (50), so that the planet gears (6) rotate on the pins (34). Each bearing (50) includes an inner race (52) having tapered raceways (64 and 66) presented away from the carrier pin (34), opposing tapered raceways (64 and 66) on the planet gear (6), and tapered rollers (58) organized in two rows between the raceways (64 and 66). Whereas the carrier pin (34) is cantilevered from the carrier flange (32), the inner race (84) is cantilevered from the head (42) of carrier pin (34). In operation, the pins (34) will deflect in one direction under torque applied to the carrier (8) and resisted by the planet gears (6), and the inner races (52) will deflect in the opposite direction, so that the axes about which the planet gears (6) rotate remain parallel to the central axis of the system (A). The pins (34) may have grooves (46) to enhance their deflection.
    • 行星齿轮系(A)具有太阳齿轮(2),位于太阳轮(2)周围的环形齿轮(4)和位于太阳(2)和环(4)之间并与其接合的行星齿轮(6) 齿轮。 另外,它具有载体(8),其包括从行星齿轮(6)轴向偏移的载体凸缘(32)和从载体凸缘(32)突出到行星齿轮(6)中的载体销(34) ),每个具有锚固到凸缘(32)的柄(40)和远离凸缘(32)的头部(42)。 在行星齿轮(6)和承载销(34)之间是双列圆锥滚子轴承(50),使得行星齿轮(6)在销(34)上旋转。 每个轴承(50)包括具有远离承载销(34)放置的锥形滚道(64和66),行星齿轮(6)上相对的锥形滚道(64和66)和圆锥滚子 58)组织在跑道(64和66)之间的两排。 而承载销(34)从承载法兰(32)悬臂,内座圈(84)从承载销(34)的头部(42)悬臂。 在操作中,销(34)将在施加到载体(8)并受行星齿轮(6)抵抗的扭矩下在一个方向上偏转,并且内圈(52)将沿相反方向偏转,使得轴 行星齿轮(6)旋转的位置与系统(A)的中心轴平行。 销(34)可以具有用于增强其偏转的凹槽(46)。