Replaceable freewheel unit for helicopters
    21.
    发明授权
    Replaceable freewheel unit for helicopters 失效
    直升机可更换飞轮单元

    公开(公告)号:US3942387A

    公开(公告)日:1976-03-09

    申请号:US514853

    申请日:1974-10-15

    摘要: An angle gear box for a helicopter main rotor drive has a more compact arrangement of the usual gear train elements of the input section as well as a freewheel unit. The input section gear train includes a power input shaft mounted on bearings and having a bevel pinion and a power output shaft mounted on bearings and having a bevel gear meshing with the pinion. The output shaft has an axial chamber in which the freewheel unit is housed and from which it can be readily removed without disturbing the mounting elements of the gear train and the critical relationship of the high speed bevel gears.

    摘要翻译: 用于直升机主转子驱动器的角度齿轮箱具有输入部分的通常的齿轮系元件和飞轮单元的更紧凑的布置。 输入部齿轮系包括安装在轴承上的动力输入轴,具有斜齿轮和安装在轴承上的动力输出轴,并具有与小齿轮啮合的锥齿轮。 输出轴具有轴向室,其中容纳有飞轮单元,并且可以容易地从其中移除,而不会干扰齿轮系的安装元件和高速锥齿轮的关键关系。

    Marine propulsion device with anchoring means for propeller shaft
bearing carrier
    22.
    发明授权
    Marine propulsion device with anchoring means for propeller shaft bearing carrier 失效
    具有用于传动轴承承载器的锚固装置的船用推进装置

    公开(公告)号:US3937093A

    公开(公告)日:1976-02-10

    申请号:US503344

    申请日:1974-09-05

    摘要: Disclosed herein is a lower unit for a marine propulsion device including a drive shaft housing, a gearcase housing connected to the end lower of the drive shaft housing and having an interior wall defining an elongated, axially extending cavity, a propeller shaft extending axially in the gearcase housing cavity and carrying a propeller, and a hollow bearing carrier member generally encircling the propeller shaft and carrying a bearing for rotatably supporting the propeller shaft in the gearcase housing cavity. The bearing carrier member is removably fastened by bolts or the like to a resilient, annular anchoring element which fits into and frictionally engages an internal annular groove in the gearcase housing to retain the bearing carrier against the axial displacement relative to the gearcase housing and to minimize rotation of the bearing carrier relative to the gearcase housing. The bearing carrier member includes a radially extending rib which registers with a gap provided in the anchoring element to automatically index the bearing carrier member with the anchoring element during assembly.

    摘要翻译: 本文公开了一种用于船用推进装置的下部单元,其包括驱动轴壳体,连接到驱动轴壳体的下端的齿轮箱壳体,并且具有限定细长轴向延伸空腔的内壁,在轴向延伸的轴向延伸的传动轴 齿轮箱壳体并承载螺旋桨,以及中空轴承承载构件,其大致环绕传动轴并承载用于可旋转地支撑传动轴在齿轮箱容纳空腔中的轴承。 轴承承载构件通过螺栓等可拆卸地固定到弹性的环形锚固元件上,该弹性的环形锚固元件装配在齿轮箱壳体中并摩擦地接合齿轮箱壳体中的内部环形槽,以保持轴承承载件相对于齿轮箱壳体的轴向位移并且最小化 轴承架相对于齿轮箱外壳的旋转。 轴承承载构件包括径向延伸的肋,其与设置在锚固元件中的间隙对准,以在组装期间使锚定元件自动地向索引承载承载构件。

    Bearing mounting method and apparatus
    23.
    发明授权
    Bearing mounting method and apparatus 失效
    轴承安装方法和装置

    公开(公告)号:US3749463A

    公开(公告)日:1973-07-31

    申请号:US3749463D

    申请日:1970-10-13

    申请人: KRAPF J

    发明人: KRAPF J

    摘要: A bearing is mounted to a casing by undercutting the casing adjacent a shaft aperture to form a recessed shoulder, inserting a bearing mounting sleeve having an outer flange at one end and inner bearing retaining means at the other end into the aperture so that the flange is against the shoulder, and inserting the bearing into the sleeve against the bearing retaining means. The invention is particularly useful in repairing damaged transmissions of the type including output transfer gears.

    摘要翻译: 将轴承通过对轴孔附近的壳体进行底切而形成凹形肩部而将壳体安装到壳体上,将一端具有外凸缘的轴承安装套筒和另一端的内轴承保持装置插入孔中, 抵靠肩部,并将轴承插入套筒中抵靠轴承保持装置。 本发明在修复包括输出传动齿轮的类型的损坏传动装置中特别有用。

    Bearing system for minimizing shaft tilting
    24.
    发明授权
    Bearing system for minimizing shaft tilting 失效
    用于最小化倾斜倾斜的轴承系统

    公开(公告)号:US3685368A

    公开(公告)日:1972-08-22

    申请号:US3685368D

    申请日:1971-02-09

    申请人: LAVAL TURBINE

    发明人: THOMA FREDERIC A

    摘要: In order to reduce the tilting of the section of a ship''s shafting system which carries the main drive gear and thereby improve the load distribution between meshing gear teeth, a bearing system is provided comprising a pair of ordinary cylindrical journal bearings, one on either side of the main drive gear, and a pair of additional bearings, each located next to one of the cylindrical journal bearings. The latter bearings serve to provide a spring scale in the horizontal direction sufficient to reduce tilting of the main gear shaft section.

    摘要翻译: 为了减少承载主驱动齿轮的船舶轴系的部分的倾斜,从而改善啮合齿轮齿之间的载荷分布,提供一种轴承系统,其包括一对普通的圆柱形轴颈轴承,一个在 主驱动齿轮和一对额外的轴承,每个轴承都位于一个圆柱轴颈轴承旁边。 后者的轴承用于在水平方向上提供足以减少主齿轮轴部分倾斜的弹簧秤。