Self-propelled material processing and/or handling system

Patent metadata

Field	Value
Publication number	US-11548735-B2
Application number	US-201916573913-A
Country	US
Kind code	B2
Filing date	Sep 17, 2019
Priority date	Mar 22, 2017
Publication date	Jan 10, 2023
Grant date	Jan 10, 2023

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.

First claim

We claim:

1. A self-propelled material processing and/or handling crushing system for processing and/or handling construction and/or raw materials comprising:
a working unit drivable by an electric working unit drive comprising an electric motor,
an electric travel drive comprising an electric motor,
a control device for controlling the electric motor of the electric working unit drive and the electric motor of the electric travel drive, wherein the control device comprises a common frequency converter configured to separately actuate the electric travel drive and the electric working unit drive, wherein the control device is configured to read or provide multiple parameter sets for the common frequency converter, wherein the electric travel drive is separately actuatable from the electric working unit drive by the common frequency converter on the basis of a first parameter set of the multiple parameter sets, and wherein the electric working unit drive is separately actuatable from the electric travel drive by the common frequency converter on the basis of a second parameter set of the multiple parameter sets.

2. The self-propelled material processing and/or handling crushing system of claim 1 , wherein the working unit comprises a circulating conveyor comprising a conveyor belt.

3. The self-propelled material processing and/or handling crushing system of claim 1 , wherein the working unit comprises a crushing device or a sieve system.

4. The self-propelled material processing and/or handling crushing system of claim 1 , further comprising a crawler chassis drivable by the electric travel drive.

5. The self-propelled material processing and/or handling crushing system of claim 4 , wherein the electric travel drive is a first electric travel drive, wherein the system further comprises a second electric travel drive comprising an electric motor, wherein the crawler chassis comprises a first chassis part and a second chassis part, wherein the first chassis part comprises the first electric travel drive, wherein the second chassis part comprises the second electric travel drive, wherein the first electric travel drive is actuatable by the common frequency converter, and wherein the second electric travel drive is actuatable by a frequency converter.

6. The self-propelled material processing and/or handling crushing system of claim 5 , wherein the first electric travel drive and the second electric travel drive are each configured to actuate a further electric working unit drive.

7. The self-propelled material processing and/or handling crushing system of claim 4 , wherein the crawler chassis is movable over ground.

8. The self-propelled material processing and/or handling crushing system of claim 1 , wherein the multiple parameter sets are stored in a memory module and are selectively accessible depending on whether the electric travel drive or the electric working unit drive is to be actuated.

9. The self-propelled material processing and/or handling crushing system of claim 1 , wherein the control device comprises a determining device configured to determine an operating characteristic of the electric travel drive and the electric working unit drive, and wherein the control device comprises an adaptor module for adapting the parameterization of the common frequency converter depending on a determined operating characteristic to actuate the electric travel drive or the electric working unit drive.

10. The self-propelled material processing and/or handling crushing system of claim 1 , wherein the control device comprises a switching device for switching between the multiple parameter sets.

11. The self-propelled material processing and/or handling crushing system of claim 10 , wherein the switching device is configured for automatically switching between the multiple parameter sets depending on a status of the electric travel drive or a status of the electric working unit drive, and wherein the switching device is configured to switch the first parameter set to the second parameter set only after a stopping of the electric travel drive.

12. The self-propelled material processing and/or handling crushing system of claim 11 , wherein the switching device is configured to switch the second parameter set to the first parameter set only after a stopping of the electric working unit drive.

13. The self-propelled material processing and/or handling crushing system of claim 10 , wherein the switching device is configured for automatically switching between the multiple parameter sets depending on a status of the electric travel drive or a status of the electric working unit drive, and wherein the switching device is configured to switch the second parameter set to the first parameter set only after a stopping of the electric working unit drive.

14. The self-propelled material processing and/or handling crushing system of claim 1 , wherein the electric travel drive is actuatable by the common frequency converter on the basis of the first parameter set while the electric working unit drive is stopped, and wherein the electric working unit drive is actuatable on the basis of the second parameter set while the electric travel drive is stopped.

15. The self-propelled material processing and/or handling crushing system of claim 1 , wherein the electric travel drive is actuatable by the common frequency converter on the basis of the first parameter set after the electric working unit drive is stopped, and wherein the electric working unit drive is actuatable on the basis of the second parameter set after the electric travel drive is stopped.

16. The self-propelled material processing and/or handling crushing system of claim 1 , wherein the working unit is propellable over ground by the electric travel drive.

17. The self-propelled material processing and/or handling crushing system of claim 1 , further comprising a track drivable by the electric travel drive, wherein the track is configured to contact ground.

Assignees

• Liebherr Components Biberach Gmbh

Inventors

• Palberg Michael
• Merkle Markus

Classifications

• B02C21/026 Primary

  self-propelled · CPC title

• B07B1/005

  Transportable screening plants · CPC title

• B02C25/00

  Control arrangements specially adapted for crushing or disintegrating · CPC title

• B65G43/00 Primary

  Control devices, e.g. for safety, warning or fault-correcting · CPC title

• B65G23/22

  Arrangements or mountings of driving motors {(B65G23/08 takes precedence)} · CPC title