DE3516258A1 - Method for reducing the band tensions in a conveyor belt - Google Patents

Method for reducing the band tensions in a conveyor belt

Info

Publication number
DE3516258A1
DE3516258A1 DE19853516258 DE3516258A DE3516258A1 DE 3516258 A1 DE3516258 A1 DE 3516258A1 DE 19853516258 DE19853516258 DE 19853516258 DE 3516258 A DE3516258 A DE 3516258A DE 3516258 A1 DE3516258 A1 DE 3516258A1
Authority
DE
Germany
Prior art keywords
drive
conveyor belt
drum
reducing
belt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
DE19853516258
Other languages
German (de)
Other versions
DE3516258C2 (en
Inventor
Heinrich Dipl.-Ing. 4130 Moers Jüngel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fried Krupp AG
Original Assignee
Fried Krupp AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fried Krupp AG filed Critical Fried Krupp AG
Priority to DE19853516258 priority Critical patent/DE3516258A1/en
Publication of DE3516258A1 publication Critical patent/DE3516258A1/en
Application granted granted Critical
Publication of DE3516258C2 publication Critical patent/DE3516258C2/de
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
    • B65G23/32—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements for effecting drive at two or more points spaced along the length of the conveyors
    • B65G23/36—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements for effecting drive at two or more points spaced along the length of the conveyors comprising two or more driving motors each coupled to a separate driving element, e.g. at either end of the conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
    • B65G23/02—Belt- or chain-engaging elements
    • B65G23/04—Drums, rollers, or wheels
    • B65G23/08—Drums, rollers, or wheels with self-contained driving mechanisms, e.g. motors and associated gearing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Belt Conveyors (AREA)

Abstract

In a method for reducing the band tension in an endless conveyor belt which is provided with at least two drive cylinders, at least one electric motor being assigned to each drive cylinder, a reduction of the band force is achieved by a method wherein the electric motors of the drive cylinders can be adjusted in respect of their speed of rotation and torque and are in each case controlled on the basis of the proportional band stress determined. This control is preferably implemented in infinitely variable manner.

Description

Verfahren zur Verringerung der Gurtspannungen einesMethod of reducing the belt tension of a

Förderbandes Die Erfindung bezieht sich auf ein Verfahren zur Verringerung der Gurtspannungen eines mit mindestens zwei Antriebstrommeln versehenen endlosen Förderbandes, wobei jeder Antriebstrommel wenigstens ein Elektromotor zugeordnet ist.Conveyor Belt The invention relates to a method of reducing the belt tension of an endless one provided with at least two drive drums Conveyor belt, with each drive drum assigned at least one electric motor is.

Bei Förderbandanlagen mit mindestens zwei Antriebstrommeln, sogenannte Doppel- oder Mehr-Trommelantriebe, bei denen die Antriebskraft durch Reibschluß von der jeweiligen Antriebstrommel auf den Fördergurt übertragen wird, sind die Antriebstrommeln an mindestens einem Ende des Fördergurts und/oder in zusätzlichen Fördergurt-Schleifen angeordnet.For conveyor belt systems with at least two drive drums, so-called Double or multiple drum drives in which the driving force is generated by frictional engagement is transferred from the respective drive drum to the conveyor belt, are the Drive drums at at least one end of the conveyor belt and / or in additional Conveyor belt loops arranged.

Die bekannten Förderbandanlagen dieser Art sind mit nichtregelbaren elektromotorischen Trommelantrieben versehen, so daß eine zweckmäßige, möglichst optimale Aufteilung der erforderlichen Gesamtleistung auf die einzelnen Trommelantriebe durch entsprechende Aufteilung der zu installierenden Motorleistung erreicht werden kann. Unter Berücksichtigung der erforderlichen Leistungsreserve für die Antriebe bedeutet das, daß die rechnerisch und auch tatsächlich aufgebrachte Antriebsleistung stets im Verhältnis der installierten Trommelantriebs-Leistungen auf die einzelnen Trommelantriebe aufgeteilt wird. Einer solchen Optimierung sind aber bereits durch die Stufung der Motorgrößen Grenzen gesetzt.The known conveyor belt systems of this type are non-adjustable electromotive drum drives provided, so that an expedient, if possible optimal distribution of the required total power to the individual drum drives can be achieved by distributing the motor power to be installed accordingly can. Taking into account the required power reserve for the drives this means that the calculated and actually applied drive power always in relation to the installed drum drive powers on the individual Drum drives is divided. Such an optimization are already through there are limits to the graduation of the motor sizes.

Bei einem Doppeltrommelantrieb ist es bereits bekanntgeworden, den Antriebsmotor der zweiten Trommel ständig unter annähernd voller Belastung zu fahren, während die Leistungsdifferenz bis zum jeweiligen Kraftbedarf des Förderbands entsprechend der Belastung vom Antriebsmotor der ersten Trommel gedeckt wird (Fördern und Heben, März 1952, Seite 7). Hierbei wird jedoch keine Verringerung der Gurtspannung erzielt, sondern lediglich eine ständig volle Beaufschlagung der einen Antriebs trommel und eine Uebernahme des Rest-Leistungsbedarfs durch die andere Trommel erreicht.In a double drum drive, it has already become known to the To keep the drive motor of the second drum running under almost full load, while the difference in performance up to the respective power requirement of the conveyor belt accordingly the load is covered by the drive motor of the first drum (conveying and lifting, March 1952, page 7). However, no reduction in belt tension is achieved here, but only a constant full application of a drive drum and a takeover of the remaining power requirement is achieved by the other drum.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art zu schaffen, bei dem unter Optimierung der Gurtspannung bei einem mit Leistungsreserven versehenen Gesamt-Förderbandantrieb eine Verringerung der tatsächlichen maximalen Gurtkraft erzielt wird. Die Lösung der Aufgabe besteht in den Merkmalen des kennzeichnenden Teils des Anspruchs 1.The invention is based on the object of a method of the initially to create mentioned type, in which, while optimizing the belt tension at a overall conveyor belt drive provided with power reserves reduces the actual maximum belt force is achieved. The solution to the task consists in the features of the characterizing part of claim 1.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Ansprüchen 2 und 3 wiedergegeben.Advantageous refinements of the invention are set out in the claims 2 and 3 reproduced.

Die Regelbarkeit der Elektromotoren kann auf verschiedene Weise erzielt werden. Vorzugsweise sind thyristorgesteuerte Käfigläufermotoren einsetzbar.The controllability of the electric motors can be achieved in various ways will. Thyristor-controlled squirrel cage motors can preferably be used.

Für die Regelung können bekannte, vorzugsweise rechnerunterstützte Regeleinrichtungen eingesetzt werden.For the regulation, known, preferably computer-aided Control devices are used.

Durch die Erzielung einer geringeren Gurtbelastung ergibt sich der Vorteil, einen Gurt von entsprechend geringerer Festigkeit zu verwenden, also den Materialaufwand entsprechend zu verringern.The achievement of a lower belt load results in the Advantage of using a belt with a correspondingly lower strength, i.e. the To reduce the cost of materials accordingly.

Das neue Verfahren ist auch bei generatorischer Betriebsweise der Elektromotoren anwendbar, wie z.B.The new method is also used in generator mode Electric motors can be used, e.g.

beim sogenannten Down-Hill-Betrieb.in so-called down-hill operation.

Nachfolgend ist ein Ausführungsbeispiel des Verfahrens nach der Erfindung wiedergegeben.Below is an embodiment of the method according to the invention reproduced.

Die Gurtbelastung wird indirekt aus den Drehmomenten der Antriebstrommeln ermittelt und die so ermittelten Werte aller Antriebstrommeln werden zentral erfaßt.The belt load is derived indirectly from the torques of the drive drums determined and the values determined in this way for all drive drums are recorded centrally.

Die vorzugsweise in einer Zentraleinheit erfaßten Werte werden addiert zu einem erforderlichen Gesamtdrehmoment und durch einen Rechner, vorzugsweise einen Mikroprozessor, in die erforderlichen Einzel-Drehmomente aufgeteilt. Die so ermittelten Drehmomente werden den einzelnen Antriebsmotoren, die vorzugsweise durch Frequenzumrichter gespeist sind, zugeteilt. Die einzelnen Antriebsmotoren werden somit entsprechend der momentanen optimalen Lastaufteilung einzeln gesteuert.The values, which are preferably recorded in a central unit, are added up to a required total torque and by a computer, preferably one Microprocessor divided into the required individual torques. The so determined Torques are given to the individual drive motors, preferably by frequency converters are fed. The individual drive motors are thus accordingly the current optimal load distribution individually controlled.

Berechnungsbeispiel: Nachfolgendes Berechnungsbeispiel zeigt an einem sog. Zwei-Trommel-Kopfantrieb den erzielbaren Vorteil einer Gurtkraftreduzierung.Calculation example: The following calculation example shows a so-called two-drum head drive the achievable advantage of reducing belt force.

Die rechnerische erforderliche Gesamtkraft soll FGes = 900 kN, die installierte Gesamtantriebskraft Finst = 1200 kN betragen. Der Trommel-Ablauffaktor soll K = 0,5 sein.The arithmetical required total force should FGes = 900 kN, the total installed driving force Finst = 1200 kN. The drum expiration factor should be K = 0.5.

Bei anteilig gleicher Auslastung beider Antriebstrommeln nach dem Stand der Technik beträgt die erforderliche Vorspannkraft F Tv = K x Ges = 0,5 x 900 = 225 kN 7 Als max. Gurtkraft Tmax ergibt sich daraus entsprechend Tmax = Tv + FGes = 225 + 900 = 1125 kN Bei der erfindungsgemäßen Aufteilung wird z.B. eine der Antriebstrommeln, die Trommel 1, voll mit Nennlast beaufschlagt, also: FI = 600 kN während die Trommel II den verbleibenden Restbedarf der Belastung deckt: F = FGes - FI = 900 - 600 = 300 kN II Daraus erhält man die erforderliche Vorspannkraft T = 0,5 x 300 = 150 kN v und Tmax. = 150 + 900 = 1050 kN Die sich im vorliegenden Beispiel ergebende Differenz der maximalen Gurtkräfte beträgt somit a Tmax = 75 kN, d.h.With proportionally the same utilization of both drive drums after According to the state of the art, the required preload force F Tv = K x Ges = 0.5 x 900 = 225 kN 7 The maximum belt force Tmax results from this accordingly Tmax = Tv + Ftotal = 225 + 900 = 1125 kN In the division according to the invention, e.g. one of the drive drums, drum 1, is fully loaded with the nominal load, i.e.: FI = 600 kN while drum II covers the remaining load requirement: F = FGes - FI = 900 - 600 = 300 kN II This gives the required pretensioning force T = 0.5 x 300 = 150 kN v and Tmax. = 150 + 900 = 1050 kN The difference in the maximum belt forces resulting from the example is thus a Tmax = 75 kN, i.e.

7,14 % bezogen auf den niedrigeren Wert von Tmax = 1050 kN, Der tatsächliche erzielbare Vorteil einer geringeren Gurtfestigkeit kann aber nur im Rahmen einer Gesamt-System-Betrachung hinreichend bewertet werden, denn er ist in erheblichem Maße abhängig von den jeweiligen projektbezogenen Bedingungen des Einzelfalls. 7.14% based on the lower value of Tmax = 1050 kN, the actual achievable advantage of a lower belt strength can only be achieved in the context of a Consideration of the overall system should be adequately assessed because it is substantial Dimensions depend on the respective project-related conditions of the individual case.

Claims (3)

Ansprüche 1. Verfahren zur Verringerung der Gurtspannungen eines mit mindestens zwei Antriebstrommeln versehenen endlosen Förderbandes, wobei jeder Antriebstrommel wenigstens ein Elektromotor zugeordnet ist, d a -d u r c h g e k e n n z e i c h n e t, daß die Elektromotoren der Antriebs trommeln drehzahl- und drehmomentveränderbar sind und jeweils aufgrund der ermittelten anteiligen Gurtbelastung geregelt werden. Claims 1. A method for reducing the belt tension of a endless conveyor belt provided with at least two drive drums, each Drive drum is assigned at least one electric motor, d a -d u r c h g e k It is noted that the electric motors of the drive drums are speed and The torque can be changed and in each case based on the determined proportional belt load be managed. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Regelung stufenlos erfolgt.2. The method according to claim 1, characterized in that the control stepless. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der bzw. die Elektromotoren jedes Trommelantriebs unabhängig von dem bzw. den Elektromotoren des bzw. der anderen Trommelantriebe geregelt werden.3. The method according to claim 1 or 2, characterized in that the or the electric motors of each drum drive independently of the electric motor or motors of the other drum drives are controlled.
DE19853516258 1985-05-07 1985-05-07 Method for reducing the band tensions in a conveyor belt Granted DE3516258A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19853516258 DE3516258A1 (en) 1985-05-07 1985-05-07 Method for reducing the band tensions in a conveyor belt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853516258 DE3516258A1 (en) 1985-05-07 1985-05-07 Method for reducing the band tensions in a conveyor belt

Publications (2)

Publication Number Publication Date
DE3516258A1 true DE3516258A1 (en) 1986-11-13
DE3516258C2 DE3516258C2 (en) 1993-02-11

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4242693A1 (en) * 1992-12-17 1994-06-23 Bergwerksverband Gmbh Method and appliance for adjusting pre-tensional force of conveyors
EP1209101A1 (en) * 2000-11-22 2002-05-29 Itoh Electric Company Limited Motorized roller
DE10009177B4 (en) * 2000-02-26 2006-10-26 Voith Turbo Gmbh & Co. Kg Conveyor for conveying bulk material, in particular for mining
DE102006005158A1 (en) * 2006-02-04 2007-08-16 Abb Patent Gmbh Drive drum of a belt conveyor and modular system for forming a drive drum
DE102007006839A1 (en) * 2007-02-12 2008-08-21 Siemens Ag Drive for e.g. flight package conveying system, has alternating current motors by which conveyors are driveable, where each conveyor is provided with drive motors and each drive motor is connectable and detachable from conveyors
DE102013204244A1 (en) 2013-03-12 2014-09-18 Takraf Gmbh High-performance conveyor system
WO2016124364A1 (en) * 2015-02-06 2016-08-11 Contitech Transportbandsysteme Gmbh Roller belt conveyor system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19820346C2 (en) * 1998-05-07 2000-04-27 Sasib Beverage Deutschland Gmb Process for setting a treatment machine
DE19911641C1 (en) * 1999-03-16 2000-07-20 Lausitzer Braunkohle Ag Conveyor belt tension control has a tensioning drum to deflect the path of the lower level with a setting unit and a process computer to modify the nominal tension value according to the current working conditions
DE10051758B4 (en) * 2000-10-18 2006-01-19 Heinrich Wemhöner GmbH & Co KG Maschinenfabrik Positioning device and its working method
DE102004051479A1 (en) * 2004-10-22 2006-04-27 Fedder, Dieter, Dipl.-Ing. Operating method for spiral conveyor system, involves gathering data relating to position of balance roll in conveyor system, and using this data to control servo unit which in turn powers drum drive of system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE428907C (en) * 1925-04-02 1926-05-15 Robert Thome Dipl Ing Drive for conveyor chains with several individual drives and clamping devices between the individual drives
DE1798675U (en) * 1958-09-27 1959-10-22 Stotz Ag A DRIVE DEVICE FOR CONVEYOR SYSTEMS.
DE1255570B (en) * 1966-04-29 1967-11-30 Konrad Grebe Conveyor device with several intermediate drives

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE428907C (en) * 1925-04-02 1926-05-15 Robert Thome Dipl Ing Drive for conveyor chains with several individual drives and clamping devices between the individual drives
DE1798675U (en) * 1958-09-27 1959-10-22 Stotz Ag A DRIVE DEVICE FOR CONVEYOR SYSTEMS.
DE1255570B (en) * 1966-04-29 1967-11-30 Konrad Grebe Conveyor device with several intermediate drives

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE-Z.: Sonderdruck, "Lange Förderbandanlagen", S.1-11 aus Fördern und Heben, H.3, März 1952 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4242693A1 (en) * 1992-12-17 1994-06-23 Bergwerksverband Gmbh Method and appliance for adjusting pre-tensional force of conveyors
DE10009177B4 (en) * 2000-02-26 2006-10-26 Voith Turbo Gmbh & Co. Kg Conveyor for conveying bulk material, in particular for mining
EP1209101A1 (en) * 2000-11-22 2002-05-29 Itoh Electric Company Limited Motorized roller
US6672449B2 (en) 2000-11-22 2004-01-06 Itoh Electric Company Limited Motorized roller
DE102006005158A1 (en) * 2006-02-04 2007-08-16 Abb Patent Gmbh Drive drum of a belt conveyor and modular system for forming a drive drum
US7543700B2 (en) 2006-02-04 2009-06-09 Abb Ag Drive drum for a belt conveyor
DE102007006839A1 (en) * 2007-02-12 2008-08-21 Siemens Ag Drive for e.g. flight package conveying system, has alternating current motors by which conveyors are driveable, where each conveyor is provided with drive motors and each drive motor is connectable and detachable from conveyors
DE102007006839B4 (en) * 2007-02-12 2010-09-02 Siemens Ag Drive for a conveyor system
DE102013204244A1 (en) 2013-03-12 2014-09-18 Takraf Gmbh High-performance conveyor system
DE102013204244B4 (en) 2013-03-12 2018-04-05 Takraf Gmbh High-performance conveyor system
WO2016124364A1 (en) * 2015-02-06 2016-08-11 Contitech Transportbandsysteme Gmbh Roller belt conveyor system

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Owner name: FRIED. KRUPP AG, 4300 ESSEN, DE

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8339 Ceased/non-payment of the annual fee