A METHOD OF AND A DEVICE FOR PROTECTING A MOTOR IN A POD AGAINST SHAFT BENDING SHOCKS
    1.
    发明公开
    A METHOD OF AND A DEVICE FOR PROTECTING A MOTOR IN A POD AGAINST SHAFT BENDING SHOCKS 有权
    方法和设备用于保护发动机吊舱BEFORE轴弯曲VIBRATIONS

    公开(公告)号:EP2748915A4

    公开(公告)日:2016-01-06

    申请号:EP12831803

    申请日:2012-09-10

    申请人: ROLLS ROYCE AB

    IPC分类号: H02K11/00 B63H23/34 F16C3/02

    摘要: A method of and a device for protecting an electric motor (4) in a pod unit (1) for propulsion of marine vessels against shaft bending shocks when the blades (2) of the pod propeller hit ice blocks or other hard objects, said motor (4) having a drive shaft (3), a rotor (41) and a stator (42), said shocks tending to momentarily bend the drive shaft (3) to such an extent that the rotor (41) will come into contact with the stator (42). In accordance with the present invention, the rotor (41) is prevented from coming in detrimental contact with the stator (42) by providing at least two members (61, 62), which together form a radial plain bearing (6) having mating arcuate bearing surfaces (611 and 621, respectively), which during normal operation of the motor (4) are spaced from one another by a gap and come in contact with one another only at extreme loads with short durations. One of the members (61, 62) is an inner member (61) having a circular circumference that constitutes one (611) of the bearing surfaces (611, 621). The arcuate bearing surface (611) of the inner member (61) is coaxial with the rotor (41) and rotary therewith, and at least one of the other members is an outer member (62), which fixed in relation to the stator (42) and has its arcuate bearing surface (621) coaxial there with.

    摘要翻译: 的用于在吊舱单元(1)保护免受电动马达(4),用于对轴船舶弯曲冲击当所述叶片(2)的荚果螺旋桨击中冰块或其它硬物的推进的方法和装置,所述电机 (4)具有驱动轴(3),转子(41)和定子(42),所述冲击倾向于暂时弯曲驱动轴(3)上的程度的搜索没有所述转子(41)将与接触 所述定子(42)。 在本发明雅舞蹈,所述转子(41)是通过提供至少两个部件(61,62),它们一起形成一径向滑动轴承(6),其具有配合的弓形从与所述定子(42)的有害接触防治 轴承表面(611和621,分别地),其中电动机的正常手术期间(4)彼此通过间隙隔开,并配备与仅在与短的持续时间极端负载彼此接触。 一项所述的构件(61,62)的是具有圆形的周边做的内部构件(61)构成一个支承面的(611)(611,621)。 内部构件的弧形支承面(611)(61)与转子(41)和旋转那里与同轴的,并且其他成员中的至少一个是外构件(62),固定在相对于所述定子( 42),并且具有其弧形轴承表面(621)与有同轴。

    A PROPULSION UNIT FOR A MARINE VESSEL AND A MARINE VESSEL HAVING A PROPULSION UNIT
    3.
    发明公开
    A PROPULSION UNIT FOR A MARINE VESSEL AND A MARINE VESSEL HAVING A PROPULSION UNIT 审中-公开
    ANTRIEBSEINHEITFÜREIN WASSERFAHRZEUG UND WASSERFAHRZEUG MIT EINER ANTRIEBSEINHEIT

    公开(公告)号:EP2593356A4

    公开(公告)日:2017-04-26

    申请号:EP11807145

    申请日:2011-06-22

    申请人: ROLLS-ROYCE AB

    IPC分类号: B63B35/12 B63H1/20

    摘要: The invention relates to a propulsion unit 1 for a marine vessel 2 which is intended to operate in icy waters. The propulsion unit is an azimuthing thruster with a propeller 3 mounted on a capsule 6. The propulsion unit 1 can be rotated in relation to the hull of the marine vessel 2 such that the propulsion unit 1 can propel the marine vessel 2 in different directions. The propeller 3 can act on ice to cut blocks of ice. The propeller 3 has a hub 4 which is arranged to cut ice when the hub 4 meets an ice block. The invention also relates to a marine vessel using the inventive propulsion unit.

    摘要翻译: 本发明涉及用于在冰水中操作的船舶2的推进单元1。 推进单元是具有安装在胶囊6上的螺旋桨3的方位推进器。推进单元1可以相对于船舶2的船体旋转,使得推进单元1能够沿不同方向推进船舶2。 螺旋桨3可以作用于冰上以切割冰块。 螺旋桨3具有轮毂4,该轮毂4布置成当轮毂4遇到冰块时切割冰。 本发明还涉及使用本发明的推进单元的船舶。