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Clutch Assembly

20170307037 ยท 2017-10-26

    Inventors

    Cpc classification

    International classification

    Abstract

    The present invention relates to an operating assembly for the mechanical connection of an engine to a work machine, comprising a drive shaft unit and an output shaft unit which are connected by means of a dynamically controllable multi-plate clutch, and comprising a holding brake acting upon the output shaft unit as well as a control unit, wherein the holding brake is a dynamically controllable brake.

    Claims

    1. An operating assembly for the mechanical connection of an engine to a work machine, comprising: a drive shaft unit and an output shaft unit which are connected by a dynamically controllable multi-plate clutch; and a holding brake acting upon the output shaft unit as well as a control unit, wherein the holding brake is a dynamically controllable brake.

    2. The operating assembly according to claim 1, wherein the multi-plate clutch and the holding brake are integrated in a common housing.

    3. The operating assembly according to claim 1, further comprising auxiliary drives.

    4. The operating assembly according to claim 3, further including pumps for a hydraulic supply of power, lubricant and/or cooling oil flows, wherein the pumps are driven by the auxiliary drives.

    5. The operating assembly according to claim 1, further comprising an electrically operated pump.

    6. The operating assembly according to claim 1, wherein the control unit comprises a unit for the stepless regulation of the hydraulic pressure on the multi-plate clutch between separation and full power transmission as well as a unit for the stepless adjustment of the hydraulic pressure on the holding brake between free run and fixation.

    7. A method for operating an operating assembly according to claim 1, wherein the output speed is regulated by a control of both the multi-plate clutch and the holding brake.

    8. A method according to claim 7, wherein drag torques arising at the multi-plate clutch are compensated by controlling the holding brake.

    9. A method according to claim 7, wherein the regulation of the output speed is carried out independently from the speed of the engine.

    10. A method according to claim 7, wherein regulation is carried out while maintaining a minimum speed of the engine.

    Description

    DRAWINGS

    [0024] Other advantages and features of the invention will become apparent from the following description by means of the figures. Herein:

    [0025] FIG. 1 is a cut schematic diagram of an operating assembly according to the invention;

    [0026] FIG. 2 is a schematic view of the functional groups and the regulation processes and

    [0027] FIG. 3 is a perspective view of a use of an operating assembly according to the invention in a marine propulsion drive.

    [0028] In the figures the same elements are provided with the same reference signs.

    DESCRIPTION

    [0029] As shown in FIG. 1, the exemplary embodiment consists of an integrated assembly, in which a drive shaft unit 2 is guided over a multi-plate clutch 4 and a holding brake 7 to an output shaft unit 3. Hydraulic oil is provided from an oil sump 5, the oil being delivered via a connected pump 6.

    [0030] The holding brake 7 as well as the multi-plate clutch 4 is a dynamically controllable assembly.

    [0031] According to FIG. 2, the speed of a drive shaft 21, which is driven by an engine 20, and the speed of an output shaft 24, which is transmitted to a work machine 25, will be compared. Depending on the target setting, the control unit (not shown) ensures that a corresponding torque is set, which is indicated with 31. Thus, a corresponding pressure is applied to the multi-plate clutch 22, on the one hand, and independently therefrom, to the holding brake 23, if a need for this exists.

    [0032] FIG. 3 exemplarily shows an application case, wherein a marine diesel 10 transmits its power to the drive shaft 11. The operating unit 1 transmits power to the output shaft 13 in a needs-based manner. A propeller 15 of a propeller group 12 is correspondingly driven via a gear 14.

    [0033] The described exemplary embodiment only serves for explanation and is not limiting. It goes without saying that corresponding sensors are provided in order to determine temperatures, pressures, speeds, oil levels and the like in a needs-based manner and to make them available to the control unit.