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    Working machine with power-branching drive
    1.
    发明授权
    Working machine with power-branching drive 有权

    公开(公告)号：US10464414B2

    公开(公告)日：2019-11-05

    申请号：US15570285

    申请日：2016-04-25

    Applicant: Liebherr-Components Biberach GmbH

    Inventor： Clemens Christ ,  Viktor Schindler ,  Norbert Hausladen

    IPC: B60K17/28 ,  F16H47/04 ,  B60K25/06 ,  F16H3/72 ,  B60K25/02 ,  E01C23/088 ,  F16H37/08

    Abstract: A working machine including a working assembly that can be driven by an engine, with the engine being connectable to the working assembly via a power branching transmission including a first mechanical power branch and a second electric or hydraulic power branch, the first and second power branches being combined by a summation transmission that can be coupled to the working assembly on the output side and provides a variable transmission ratio between the first mechanical power branch and the working assembly that can be adjusted by the rotational speed of the second electric or hydraulic power branch. A blocking device is provided for blocking the variability of the transmission ratio that can be adjusted between the first mechanical power branch and the output side of the summation transmission by the rotational speed of the second electric or hydraulic power branch.

    Adjustment and/or drive unit, wind power plant having such an adjustment and/or drive unit, and method for controlling such an adjustment and/or drive unit
    3.
    发明授权
    Adjustment and/or drive unit, wind power plant having such an adjustment and/or drive unit, and method for controlling such an adjustment and/or drive unit 有权

    公开(公告)号：US11454211B2

    公开(公告)日：2022-09-27

    申请号：US15983933

    申请日：2018-05-18

    Applicant: Liebherr-Components Biberach GmbH

    Inventor： Johannes Müller ,  Martin Dahl ,  Oliver Wennheller ,  Clemens Christ ,  Oliver Fenker

    IPC: F03D7/02 ,  F03D17/00 ,  F03D7/04 ,  F03D80/70 ,  F03D80/00

    Abstract: The present invention relates to adjustment and/or drive units which can be used in wind power plants for adjusting the azimuth angle of the nacelle of the wind power plant or the pitch angle of the rotor blades, wherein such an adjustment and/or drive unit has at least two adjusting drives for rotating two assemblies which are mounted so as to be rotatable relative to each other, and has a control device for controlling the adjusting drives. The control device controls the adjusting drives in such a manner that the adjusting drives are braced relative to each other during the rotation of the two assemblies and/or when the assemblies are at standstill. The invention further relates to a wind power plant comprising such an adjustment and/or drive unit, and to a method for controlling such an adjustment and/or drive unit. According to the invention, the control device comprises a bracing-adjustment device for variably adjusting the intensity of the bracing of the adjusting drives as a function of a variable external load on the assemblies being adjusted, wherein the intensity can be determined by means of a load determining device. According to another aspect of the invention, an overload protection is included, wherein the individual loads of the individual adjusting drives are determined by load determining devices and, in the event that an adjusting drive reaches overload, the distribution of the drive torques is modified in such a manner that the adjusting drive reaching overload is relieved or at least not further loaded, and at least one further adjusting drive is more heavily loaded in a supporting manner or is less heavily loaded in a bracing manner.

    Power split transmission
    4.
    发明授权
    Power split transmission 有权
    电源分配传输

    公开(公告)号：US09482331B2

    公开(公告)日：2016-11-01

    申请号：US14243944

    申请日：2014-04-03

    Applicant: Liebherr-Components Biberach GmbH

    Inventor： Viktor Schindler ,  Clemens Christ

    IPC: F16H47/08 ,  B60K6/445 ,  F16H47/04 ,  F16H37/08 ,  F16H37/10

    CPC classification number: F16H47/08 ,  B60K6/445 ,  F16H47/04 ,  F16H2037/0886 ,  F16H2037/103 ,  F16H2047/045 ,  F16H2200/2023 ,  Y02T10/6239

    Abstract: A power split transmission, in particular for a traction drive, having at least one drive shaft and at least one output shaft between which a mechanical first branch and a hydraulic or electrical second branch are provided that can be connected to one another at least in part by a planetary gear arrangement, wherein the second branch comprises a plurality of energy converters. The at least one drive shaft can be connected to a first energy converter and to a first connection element of the planetary gear arrangement, while the at least one output shaft can be connected to a second connection element of the planetary gear arrangement and the second and third energy converters can be connected to at least one or more further connection elements of the planetary gear arrangement and/or of the at least one output shaft.

    Abstract translation: 特别是用于牵引驱动器的动力分配变速器具有至少一个驱动轴和至少一个输出轴，在所述至少一个输出轴之间提供机械第一分支和液压或电气第二分支，其可以至少部分地相互连接 通过行星齿轮装置，其中第二分支包括多个能量转换器。 至少一个驱动轴可以连接到第一能量转换器和行星齿轮装置的第一连接元件，同时至少一个输出轴可以连接到行星齿轮装置的第二连接元件，而第二和 第三能量转换器可以连接到行星齿轮装置和/或至少一个输出轴的至少一个或多个另外的连接元件。

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