公开(公告)号：US20160160911A1

公开(公告)日：2016-06-09

申请号：US14961124

申请日：2015-12-07

Applicant: ROLLS-ROYCE PLC

Inventor： Stephen GALLIMORE ,  Paul FLETCHER ,  Philip PETERS

IPC: F16C19/54 ,  F01D25/16 ,  F16C19/52 ,  F16C19/06 ,  F16C33/78 ,  F16C35/04

CPC classification number: F16C19/54 ,  F01D25/16 ,  F01D25/164 ,  F02C7/06 ,  F05D2220/32 ,  F05D2240/54 ,  F05D2260/15 ,  F16C19/06 ,  F16C19/16 ,  F16C19/522 ,  F16C19/542 ,  F16C25/08 ,  F16C33/7823 ,  F16C35/042 ,  F16C41/02 ,  F16C2360/23

Abstract: Load sharing stacked bearing structure including first bearing having a first inner race, first outer race and first set of roller elements housed between first inner race and first outer race and a second bearing having a second inner race, second outer race and second set of roller elements housed between second inner race and the second outer race. A housing surrounds the first and second bearings. First compliant element is provided with the first compliant element connected between the housing and the first outer race. The first compliant element, first outer race and housing define at a pressure chamber. The first outer race axially slidable relative to the second outer race such that an increase in pressure in pressure chamber causes a change in axial spacing between the outer races. This induces an additional axial load on the bearings which helps balance thrust load sharing.

Abstract translation: 负载共享层叠轴承结构包括具有第一内圈，第一外圈和容纳在第一内圈和第一外圈之间的第一组滚子元件的第一轴承和具有第二内圈，第二外圈和第二组滚子的第二轴承 容纳在第二内圈和第二外圈之间的元件。 壳体围绕第一和第二轴承。 第一顺应元件设置有连接在壳体和第一外座圈之间的第一顺应元件。 第一顺应元件，第一外圈和外壳限定在压力室。 第一外座圈相对于第二外座圈可轴向滑动，使得压力室中的压力增加导致外座圈之间的轴向间距的变化。 这会在轴承上产生额外的轴向载荷，有助于平衡推力负荷分担。