公开(公告)号：US12013023B2

公开(公告)日：2024-06-18

申请号：US18052356

申请日：2022-11-03

Applicant: Liebherr-Components Biberach GmbH

Inventor： Klaus Graner ,  Martin Paal

IPC: F16H57/04 ,  F16H57/025 ,  F16H1/28 ,  F16H57/02

CPC classification number: F16H57/025 ,  F16H57/0412 ,  F16H57/0476 ,  F16H1/28 ,  F16H2057/02034 ,  F16H2057/02073 ,  F16H57/0486

Abstract: The invention relates to a drive unit for a construction and/or material handling machine or lifting equipment such as a crane, comprising a torque density of more than 20 Nm/l at a predetermined output speed, wherein the drive unit comprises a drive motor and a connected transmission, wherein a fast-running electric motor is provided as the drive motor, wherein the motor speed thereof is at least two times said output speed of the drive unit and is reduced by the transmission by a factor of at least 2 to the output speed of the drive unit.

公开(公告)号：US11719328B2

公开(公告)日：2023-08-08

申请号：US17154629

申请日：2021-01-21

Applicant: Liebherr-Components Biberach GMBH

Inventor： Martin Paal ,  Frowin Wack ,  Norbert Hausladen

IPC: F16H57/04

CPC classification number: F16H57/0423 ,  F16H57/043 ,  F16H57/046 ,  F16H57/0431 ,  F16H57/0456

Abstract: The present invention relates to a drive for reaching a desired position of a component such as of a rotor blade, a crane tower, a superstructure and the like, having at least two drive elements that are in toothed engagement with one another and of which at least one is drivable from a drive source and the other is connectable to the component, and having a lubricating device for lubricating the drive elements, wherein at least one lubricant passage for the supply of lubricant to a meshing tooth pair is led through one of the drive elements. It is proposed to effect the supply of the lubricant by a distributor that is connected upstream of the lubricant passage integrated in the drive element and to control the connection between a supply passage of the distributor and the at least one lubricant passage integrated in the drive element by a relative movement between the drive element and the distributor.

公开(公告)号：US10927943B2

公开(公告)日：2021-02-23

申请号：US15370949

申请日：2016-12-06

Applicant: Liebherr-Components Biberach GMBH

Inventor： Martin Paal ,  Frowin Wack ,  Norbert Hausladen

IPC: F16H57/04

Abstract: The present invention relates to a drive for reaching a desired position of a component such as of a rotor blade, a crane tower, a superstructure and the like, having at least two drive elements that are in toothed engagement with one another and of which at least one is drivable from a drive source and the other is connectable to the component, and having a lubricating device for lubricating the drive elements, wherein at least one lubricant passage for the supply of lubricant to a meshing tooth pair is led through one of the drive elements. It is proposed to effect the supply of the lubricant by a distributor that is connected upstream of the lubricant passage integrated in the drive element and to control the connection between a supply passage of the distributor and the at least one lubricant passage integrated in the drive element by a relative movement between the drive element and the distributor.

公开(公告)号：US10737917B2

公开(公告)日：2020-08-11

申请号：US15860505

申请日：2018-01-02

Applicant: Liebherr-Components Biberach GmbH

Inventor： Martin Paal ,  Steven Kreyssig ,  Johannes Bulling

IPC: B66D1/26 ,  B66D1/14 ,  B66C19/00 ,  B66D1/12

Abstract: The present invention relates to a hoisting winch assembly comprising at least two preferably axially parallel drums spaced from each other axially, which can be driven in synchronism with each other by two motors via a transmission assembly. The invention furthermore relates to a crane, in particular a gantry and/or container crane, with such hoisting winch assembly. According to the invention, the transmission assembly has at least two separate gear trains, so that each motor is in drive connection with one drum each via a separate gear train. As compared to a common transmission to which both motors are connected, the separate gear trains can be configured significantly lighter and smaller, as no longer the power of both motors added up, but only the power of one motor must be transmitted. Nevertheless, high hoisting powers can be provided on the whole, as each motor must drive only one drum.