Multiple drive for a heavy-load application and method for operating such a multiple drive

Patent metadata

Field	Value
Publication number	US-2017366111-A1
Application number	US-201515528306-A
Country	US
Kind code	A1
Filing date	Nov 17, 2015
Priority date	Nov 21, 2014
Publication date	Dec 21, 2017
Grant date	—

Abstract

A multiple drive for a heavy load application includes a plurality of drive trains which are activated such that individual ones of the plurality of drive trains are successively activated automatically during startup of the heavy load application as part of a predefined activation strategy according to a predefined activation scheme and an activation sequence defined therein. In the event of a repeated start of the heavy-load application, a different activation scheme can be used for the activation.

First claim

What is claimed is:

1 .- 10 . (canceled)

11 . A multiple drive for a heavy load application, comprising a plurality of drive trains which are activated such that individual ones of the plurality of drive trains are successively activated automatically during startup of the heavy load application as part of a predefined activation strategy according to a predefined activation scheme and an activation sequence defined therein, wherein a different activation scheme is used when the startup of the heavy load application is repeated.

12 . The multiple drive of claim 11 , wherein the drive trains include a motor in the absence of an upstream main converter.

13 . The multiple drive of claim 11 , wherein the drive trains include a motor and a coupling operably connected to the motor and configured as a fluid coupling.

14 . A method for operating a multiple drive for a heavy load application, comprising:
automatically activating individual drive trains successively from a plurality of drive trains of the multiple drive during a startup of the heavy load application as part of a predefined activation strategy according to a predefined activation scheme and an activation sequence defined therein; and using a different activation scheme when the startup of the heavy load application is repeated.

15 . The method of claim 14 , wherein during the startup of the heavy load application, as part of the successive activation of the individual drive trains, initially activating only one of the drive trains, bringing the heavy load application to an initial speed by the one of the activated drive trains, and activating all the drive trains or further drive trains when the initial speed is attained.

16 . The method of claim 15 , wherein the initial speed is an idling speed.

17 . The method of claim 14 , further comprising:
measuring at least one temperature-proportional value for the drive trains of the multiple drive; and selecting the drive trains activated successively during the startup of the heavy load application on the basis of the measured temperature-proportional value.

18 . The method of claim 14 , further comprising:
measuring at least one temperature-proportional value for the drive trains of the multiple drive; and deactivating previously activated individual drive trains during a run-up of the heavy load application depending on the at least one measured temperature-proportional value.

19 . A computer program comprising program code which, when executed by a control device for controlling a multiple drive for a heavy load application, causes the control device to perform the steps of:
automatically activating individual drive trains successively from a plurality of drive trains of the multiple drive during a startup of the heavy load application as part of a predefined activation strategy according to a predefined activation scheme and an activation sequence defined therein; and using a different activation scheme when the startup of the heavy load application is repeated.

20 . The computer program of claim 19 , wherein the control device is caused during the startup of the heavy load application, as part of the successive activation of the individual drive trains, to perform the steps of initially activating only one of the drive trains, bringing the heavy load application to an initial speed by the one of the activated drive trains, and activating all the drive trains or further drive trains when the initial speed is attained.

21 . The computer program of claim 20 , wherein the initial speed is an idling speed.

22 . A control device for controlling a multiple drive for a heavy load application, comprising:
a processing unit; a memory; and a computer program embodied as a control program which, when loaded into the memory and executed by the processing unit during operation of the control device causes the processing unit to perform the steps of:
automatically activating individual drive trains successively from a plurality of drive trains of the multiple drive during a startup of the heavy load application as part of a predefined activation strategy according to a predefined activation scheme and an activation sequence defined therein; and
using a different activation scheme when the startup of the heavy load application is repeated.

23 . The control device of claim 22 , wherein the computer program causes the processing unit to perform during the startup of the heavy load application, as part of the successive activation of the individual drive trains, the steps of initially activating only one of the drive trains, bringing the heavy load application to an initial speed by the one of the activated drive trains, and activating all the drive trains or further drive trains when the initial speed is attained.

24 . A vertical mill, comprising:
a multiple drive for a heavy load application, said multiple drive comprising a plurality of drive trains which are activated such that individual ones of the plurality of drive trains are successively activated automatically during startup of the heavy load application as part of a predefined activation strategy according to a predefined activation scheme and an activation sequence defined therein, wherein a different activation scheme is used when the startup of the heavy load application is repeated; and a control device for controlling the multiple drive, said control device comprising a processing unit, a memory, and a computer program embodied as a control program in a non-transitory computer readable medium, wherein the computer program, when loaded into the memory and executed by the processing unit during operation of the control device causes the processing unit to perform the steps of automatically activating individual drive trains successively from a plurality of drive trains of the multiple drive during a startup of the heavy load application as part of a predefined activation strategy according to a predefined activation scheme and an activation sequence defined therein, and using a different activation scheme when the startup of the heavy load application is repeated.

25 . The vertical mill of claim 24 , wherein the drive trains include a motor in the absence of an upstream main converter.

26 . The vertical mill of claim 24 , wherein the drive trains include a motor and a coupling operably connected to the motor and configured as a fluid coupling.

27 . The vertical mill of claim 24 , wherein the computer program causes the processing unit to perform during the startup of the heavy load application, as part of the successive activation of the individual drive trains, the steps of initially activating only one of the drive trains, bringing the heavy load application to an initial speed by the one of the activated drive trains, and activating all the drive trains or further drive trains when the initial speed is attained.

28 . The vertical mill of claim 24 , further comprising a sensor system configured to measure at least one temperature-proportional value for the drive trains of the multiple drive, said computer program causing the control device to select the drive trains activated successively during the startup of the heavy load application on the basis of the measured temperature-proportional value.

29 . The vertical mill of claim 24 , further comprising a sensor system configured to measure at least one temperature-proportional value for the drive trains of the multiple drive, said computer program causing the control devi

Assignees

• Siemens Ag

Inventors

• Kube Andreas

Classifications

• B02C15/006 Primary

  Ring or disc drive gear arrangement · CPC title

• H02P1/58 Primary

  sequentially · CPC title

• B02C25/00

  Control arrangements specially adapted for crushing or disintegrating · CPC title

• H02P29/60

  Controlling or determining the temperature of the motor or of the drive (H02P29/02 takes precedence) · CPC title

• H02P29/68

  based on the temperature of a drive component or a semiconductor component · CPC title