公开(公告)号：WO1995016608A1

公开(公告)日：1995-06-22

申请号：PCT/US1994012910

申请日：1994-11-09

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  CHORY, Anthony, G. ,  THORN, Mark, L. ,  GEFFERT, Charles ,  HOLMES, Jeffrey, A. ,  SOBANIK, William, J. ,  KAREDES, Edward, J.

IPC: B64C27/12

CPC classification number: F16C35/063 ,  B64C27/12 ,  F16C19/54 ,  F16C2326/43

Abstract: A spacer (10) for a helicopter main rotor shaft (102) is mounted in combination with the main rotor shaft (102) and is operative to support the inner race (116) of the upper bearing assembly (110) of the main rotor shaft (102) and is concomitantly operative to restrain axial migration of the inner race (116). One preferred embodiment of the spacer (10) comprises a body member (11) having a stepped configuration defined by an upper cylindrical segment (12) and a lower cylindrical segment (20) to accommodate the outer structural envelope of the main rotor shaft (102). Structural continuity between the upper and lower cylindrical segments (12, 20) is provided by a lower annular collar (18) and an interface annular collar (22) and a plurality of reaction spokes (30) that extend between the upper annular collar (14) and the bottom annular collar (24).

Abstract translation: 用于直升机主转子轴（102）的间隔件（10）与主转子轴（102）组合安装，并且可操作以支撑主转子轴（110）的上轴承组件（110）的内座圈（116） （102）并且同时可操作地限制内圈（116）的轴向移动。 间隔件（10）的一个优选实施例包括主体构件（11），其具有由上部圆柱形段（12）和下部圆柱形段（20）限定的阶梯构造，以容纳主转子轴（102）的外部结构 ）。 上部和下部圆柱形段（12,20）之间的结构连续性由下部环形套环（18）和接口环形套环（22）和多个反应轮辐（30）提供，其在上部环形套环（14） ）和底部环形套环（24）。

公开(公告)号：EP0734343A1

公开(公告)日：1996-10-02

申请号：EP95902493.0

申请日：1994-11-09

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： CHORY, Anthony, G. ,  THORN, Mark, L. ,  GEFFERT, Charles ,  HOLMES, Jeffrey, A. ,  SOBANIK, William, J. ,  KAREDES, Edward, J.

IPC: B64C27 ,  F16C35

CPC classification number: F16C35/063 ,  B64C27/12 ,  F16C19/54 ,  F16C2326/43

Abstract: A spacer (10) for a helicopter main rotor shaft (102) is mounted in combination with the main rotor shaft (102) and is operative to support the inner race (116) of the upper bearing assembly (110) of the main rotor shaft (102) and is concomitantly operative to restrain axial migration of the inner race (116). The spacer (10) comprises a body member (11) having a stepped configuration defined by an upper cylindrical segment (12) and a lower cylindrical segment (20) to accommodate the outer structural envelope of the main rotor shaft (102). The upper cylindrical segment (12) includes an upper annular collar (14), an intermediate annular collar (16), and a lower annular collar (18), and the lower cylindrical segment (20) includes an interface annular collar (22) and a bottom annular collar (24). Structural continuity between the upper and lower cylindrical segments (12, 20) is provided by the lower annular collar (18) and the interface annular collar (22 ) and a plurality of reaction spokes (30) that extend between the upper annular collar (14) and the bottom annular collar (24). The reaction spokes (30) react the bearing migration loading exerted by the inner race (116). The upper annular collar (14) includes an annular shoulder (26) that engages the inner race (116) of the upper bearing assembly (110) to support the inner race (116) and to concomitantly restrain axial migration thereof. The endface surface (24E) of the bottom annular collar (24) selectively abuttingly engages the endface of a planetary carrier (106) to support the spacer (10) in combination with the main rotor shaft (102). A plurality of flats (28) are formed on the inner surface of the bottom annular collar (24) in alignment with corresponding reaction spokes (30). The faces (28F) of the flats (28) provide the mechanical engagement between the spacer (10) and the main rotor shaft (102), and function as a pin joint to prevent bending motion of the main rotor shaft from being inducing loads into the spacer (10).

Abstract translation: 用于直升机主转子轴（102）的间隔件（10）与主转子轴（102）组合安装，并且可操作地支撑主转子轴（110）的上轴承组件（110）的内座圈（116） （102）并且同时可操作地限制内圈（116）的轴向迁移。 间隔件（10）包括主体构件（11），其具有由上部圆柱形段（12）和下部圆柱形段（20）限定的阶梯构造，以容纳主转子轴（102）的外部结构外壳。 上部圆柱形部分（12）包括上部环形套环（14），中间环形套环（16）和下部环形套环（18），下部圆柱形部分（20）包括接口环形套环（22）和 底部环形套环（24）。 上部和下部圆柱形段（12,20）之间的结构连续性由下部环形套环（18）和接口环形套环（22）以及多个反应轮辐（30）提供，该反作用轮辐在上部环形套环（14） ）和底部环形套环（24）。 反作用轮辐（30）使由内圈（116）施加的轴承移动载荷作出反应。 上环形套环（14）包括与上轴承组件（110）的内座圈（116）接合以支撑内座圈（116）并且伴随地抑制其轴向迁移的环形肩部（26）。 底部环形套环（24）的端面（24E）选择性地邻接行星架（106）的端面，以与主转子轴（102）组合地支撑间隔件（10）。 多个平面（28）形成在底部环形套环（24）的内表面上，与对应的反应轮辐（30）对准。 平面（28）的面（28F）提供间隔件（10）和主转子轴（102）之间的机械接合，并且用作销接头，以防止主转子轴的弯曲运动引起负载 间隔件（10）。

公开(公告)号：EP0734343B1

公开(公告)日：1998-03-04

申请号：EP95902493.6

申请日：1994-11-09

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： CHORY, Anthony, G. ,  THORN, Mark, L. ,  GEFFERT, Charles ,  HOLMES, Jeffrey, A. ,  SOBANIK, William, J. ,  KAREDES, Edward, J.

IPC: B64C27/12 ,  F16C35/06

CPC classification number: F16C35/063 ,  B64C27/12 ,  F16C19/54 ,  F16C2326/43

Abstract: A spacer (10) for a helicopter main rotor shaft (102) is mounted in combination with the main rotor shaft (102) and is operative to support the inner race (116) of the upper bearing assembly (110) of the main rotor shaft (102) and is concomitantly operative to restrain axial migration of the inner race (116). The spacer (10) comprises a body member (11) having a stepped configuration defined by an upper cylindrical segment (12) and a lower cylindrical segment (20) to accommodate the outer structural envelope of the main rotor shaft (102). The upper cylindrical segment (12) includes an upper annular collar (14), an intermediate annular collar (16), and a lower annular collar (18), and the lower cylindrical segment (20) includes an interface annular collar (22) and a bottom annular collar (24). Structural continuity between the upper and lower cylindrical segments (12, 20) is provided by the lower annular collar (18) and the interface annular collar (22 ) and a plurality of reaction spokes (30) that extend between the upper annular collar (14) and the bottom annular collar (24). The reaction spokes (30) react the bearing migration loading exerted by the inner race (116). The upper annular collar (14) includes an annular shoulder (26) that engages the inner race (116) of the upper bearing assembly (110) to support the inner race (116) and to concomitantly restrain axial migration thereof. The endface surface (24E) of the bottom annular collar (24) selectively abuttingly engages the endface of a planetary carrier (106) to support the spacer (10) in combination with the main rotor shaft (102). A plurality of flats (28) are formed on the inner surface of the bottom annular collar (24) in alignment with corresponding reaction spokes (30). The faces (28F) of the flats (28) provide the mechanical engagement between the spacer (10) and the main rotor shaft (102), and function as a pin joint to prevent bending motion of the main rotor shaft from being inducing loads into the spacer (10).