SELF-PROPELLED MATERIAL PROCESSING AND/OR HANDLING SYSTEM

Abstract

The present invention relates to a self-propelled material processing and/or handling system for processing and/or handling construction and/or raw materials, in particular in the form of a mobile crushing system, with at least one working unit, which is drivable, by an electric unit drive, with an electric motor, at least one electric travel drive with an electric motor, as well as a control device to control the electric motors of the unit and travel drives. According to the invention, the control device comprises a common frequency converter for the at least one travel drive and the at least one unit drive and provides various parameter sets for the common frequency converter so that the travel drive is actuatable by the frequency converter on the basis of a first parameter set and the unit drive is actuatable by the common frequency converter on the basis of a second parameter set.

Claims

1. A self-propelled material processing and/or handling crushing system for processing and/or handling construction and/or raw materials comprising: at least one working unit drivable by an electric unit drive comprising an electric motor, an electric travel drive comprising an electric motor, a control device for controlling the electric motors of the unit and travel drives, wherein the control device comprises a common frequency converter for the travel drive and the unit drive and provides various parameter sets for the common frequency converter, so that the travel drive is actuatable by the frequency converter on the basis of a first parameter set, and wherein the unit drive is actuatable on the basis of a second parameter set.

2. The system of claim 1, wherein the at least one working unit comprises a circulating conveyor comprising a conveyor belt, and wherein the electric unit drive is actuatable by a common frequency converter.

3. The system of claim 1, wherein the at least one working unit comprises a crushing device or a sieve system, and wherein the electric unit drive is actuatable by a common frequency converter.

4. The system of claim 1, further comprising a crawler chassis drivable by the travel drive.

5. The system of claim 4, wherein the crawler chassis comprises right and left chassis parts, wherein the right and left chassis parts each comprise a distinct travel drive with an electric motor, wherein each travel drive is actuatable by a distinct frequency converter, wherein at least one of the multiple frequency converters of the two chassis parts is simultaneously provided to actuate at least one unit drive and can be operated with various parameter sets.

6. The system of claim 5, wherein each of the multiple frequency converters is configured to actuate one of the multiple travel drives and a further unit drive on the other hand.

7. The system of claim 1, wherein the parameter sets are stored in a memory module and are selectively accessible depending on whether the at least one travel drive or the at least one unit drive is to be actuated.

8. The system of claim 1, wherein the control device comprises a determining device configured to determine operating characteristics of the travel and unit drives to be actuated, and an adaptor module for adapting the parameterization of the common frequency converter depending on the determined operating characteristics.

9. The system of claim 1, wherein the control device comprises a switching device for switching between the multiple parameter sets for the common frequency converter.

10. The system of claim 9, wherein the switching device is configured for automatically switching depending on the input of a travel drive operating wish or a working unit operating unit, wherein the switching device is configured to switch the parameter set for the drive to be newly actuated only after a stopping of the drive to be actuated.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The invention is disclosed in further detail in the following based on a preferred exemplary embodiment and associated drawings. The drawings show in:

[0025] FIG. 1 a schematic illustration of a self-propelled crushing system according to an advantageous embodiment of the invention, according to which the frequency converters for the left and right chassis drives are respectively also used to actuate a conveyor belt, and

[0026] FIG. 2 a schematic illustration of a crushing system according to the prior art, according to which each drive was assigned its own frequency converter.

DETAILED DESCRIPTION

[0027] As FIG. 1 shows, a material processing and/or handling system 1 can be formed as a crushing system, which can serve to crush mineral construction or raw materials such as rock or the like. Such a crushing system 1 can comprise, as a main working unit 4, a crusher 21, for example including a crushing shaft and/or hammer tools, wherein the mentioned crusher 4 can be driven by a working unit drive 7, including an electric motor EM.

[0028] Further working units 2 and 3 can, for example, comprise circulating conveyors 15 and 16, for example in the form of conveyor belts, via which material to be processed can be supplied and removed. These further working units 2 and 3 can be driven via further unit drives 5 and 6, which likewise can comprise respectively at least one electric motor EM.

[0029] The mentioned main and secondary working units 5, 6 and 7 can be arranged on a machine body or frame 22, which can be supported by a chassis on the ground, wherein the mentioned chassis can in particular be configured as a crawler chassis 17, which comprises right and left chassis parts 18 and 19.

[0030] The mentioned right and left chassis parts 18 and 19 can respectively comprise a distinct travel drive 8 and 9 with an electric motor EM, respectively, so that the right and left chassis parts can be driven with travel speeds and/or drive directions alterable relative to one another.

[0031] In particular, the mentioned chassis parts 18 and 19 can respectively comprise a crawler track, which is drivable by the mentioned travel drives 8 and 9.

[0032] A control device 10 is provided to actuate the travel and unit drives 8, 9 or 5, 6 and 7, which device provides for frequency converters 11 and 12 for each of the two left and right travel drives 8 and 9, in order to variably control the mentioned travel drives 8 and 9 independently of each other or relatively to one another. The mentioned frequency converters 11 and 12 can simultaneously also be used to actuate the unit drives 5, 6 and 7 and form part of a power electronics, via which the mentioned travel and unit drives 8, 9 or 5, 6, 7 can be supplied with electrical energy.

[0033] In order to be able to use the common frequency converter 11 or 12 to actuate a travel drive 8 or 9 on the one hand, and to actuate a unit drive 5, 6, 7 on the other hand, the parameterization of the mentioned frequency converters 11 and 12 can be altered. To that end, the control device 10 can include a memory module 20, in which various parameter sets 13, 14 can be stored and are read or provided by the control device 10, depending on which drive is meant to be actuated.

[0034] The control device 10 can, to that end, comprise a switching device 23 which can provide a switching of the parameter sets 13 and 14 in the system operation, wherein the mentioned switching device 23 can include a manual activation means and/or alternatively or additionally also be configured automatically. For example, the switching can automatically be then provided when one of the conveyor belts 15 or 16 is started for example, wherein the control device 10 here initially examines if the travel drives 8 and 9 are stopped, in order to then switch the parameter set for the respective circulating conveyor to active. Conversely, if one of the travel drives 8 and 9 is required in that a travel request is entered, the control device 10 examines if the working units 2, 3, 4 are stopped and then switches the parameter set for the actuation of the travel drives to available.