WO2008025305A1 - Procédé pour surveiller un dispositif de transport, et dispositif servant à la mise en oeuvre de ce procédé - Google Patents

Procédé pour surveiller un dispositif de transport, et dispositif servant à la mise en oeuvre de ce procédé Download PDF

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Publication number
WO2008025305A1
WO2008025305A1 PCT/DE2006/001517 DE2006001517W WO2008025305A1 WO 2008025305 A1 WO2008025305 A1 WO 2008025305A1 DE 2006001517 W DE2006001517 W DE 2006001517W WO 2008025305 A1 WO2008025305 A1 WO 2008025305A1
Authority
WO
WIPO (PCT)
Prior art keywords
dancer roll
deflection
value
belt
monitoring
Prior art date
Application number
PCT/DE2006/001517
Other languages
German (de)
English (en)
Inventor
Hubert Bellm
Wolfgang Ens
Herbert Grieb
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to PCT/DE2006/001517 priority Critical patent/WO2008025305A1/fr
Priority to DE112006004106T priority patent/DE112006004106A5/de
Publication of WO2008025305A1 publication Critical patent/WO2008025305A1/fr

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
    • B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
    • B65G43/02—Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load carriers, e.g. for interrupting the drive in the event of overheating

Definitions

  • the invention relates to a method for monitoring a device for continuously conveying an elongated product, for example a wire, a rope, a belt or a belt, and a device suitable for carrying out the method.
  • conveyor belts are a fundamental design element. The most important element of a conveyor belt is the conveyor belt, an endless, circulating on idlers or slideways band that serves as a carrier and at the same time as a traction device. It is often driven by friction of one or more drive rollers. Conveyor belts are often stretched over so-called dancer rollers, which compensate for a fluctuating train with their lifting movement.
  • the invention has for its object to provide a method and a device for monitoring a conveyor, which make it possible to issue an early warning for impending tearing of an elongated product to be conveyed, for example a conveyor belt, before the conveyor stops.
  • the invention is based on the recognition that a conveyed elongate material, for example a conveyor belt of a packaging machine, already changes its mechanical properties, for example its elongation or its elastic properties, some time before tearing. This change can be evaluated by determining and evaluating the deflection of the dancer roll and advantageously deriving therefrom a diagnosis statement.
  • a predictive maintenance it is made possible by the invention to already detect a faulty state of a conveyor before it comes to a significant failure or failure of the conveyor. An unplanned downtime, for example, of a packaging machine can thus be avoided and maintenance can be carried out, for example, in cyclic maintenance intervals in which a repair or an exchange of the conveyor belt can be made without further production failures. There are hardly any additional
  • the frequency of vibrations in particular of the oscillations with maximum amplitude, can be determined on the basis of the course of the deflection of the dancer roll and used as a characteristic variable.
  • a change in the elongation leads, for example, in a conveyor belt to a change in the rigidity and thus to a shift in the frequencies of the movements of the dancer roll. Based on this size can thus also be obtained a diagnosis of the condition of a conveyor belt.
  • a comparison with a specimen-specific reference value is made possible in an advantageous manner when the reference value is determined and stored during the commissioning of the conveyor and thus in the good state. This can further improve the reliability of the diagnostic statement.
  • Conveyor 1 with an endless, on two support rollers 2 and 3 circulating conveyor belt 4, as it is used for example in packaging machines, shown.
  • a dancer roller 5 on which a tensile force is exerted with a spring 6, the tension of the conveyor belt 4 is adjusted.
  • the dancer roller 5 compensates with its strokes length changes of the conveyor belt 4 and ensures a constant tension of the belt 4.
  • the respective deflection of the dancer roller 5 is determined by a distance sensor 7 and passed to an electronic evaluation device 8.
  • the tensile force exerted on the dancer roller 5 by the spring 6 can be detected by a force sensor 9 and reported to the electronic evaluation device 8, as shown in the figure by an arrow 10 marked with broken lines.
  • this force acts approximately proportionally to the deflection of the dancer roll 5 and thus likewise represents a measured value representing the deflection of the dancer roll 5.
  • the conveyor belt 4 can break. This tearing is preceded by an elongation of the conveyor belt 4, which can be detected and evaluated with the distance sensor 7 and / or the force sensor 9 with the aid of the electronic evaluation device 8.
  • a course of measured values of the deflection of the dancer roller 5 is stored in a memory 12 in the electronic evaluation unit 8 by means of a microcontroller 11.
  • the moving average value is calculated and compared with a reference value which was determined during the commissioning of the conveyor belt 1, that is to say when the conveyor belt 4 was new, and stored in a memory 13. If the deviation, that is, the difference between the current moving average and the stored reference value, a predetermined threshold exceeds, so this indicates an impending error of the conveyor belt 4 and it is issued a corresponding warning as a display signal 14.
  • the threshold value is selected on the one hand such that the monitoring device does not react too sensitively, and on the other hand that errors are already detected before they occur. Furthermore, it can be deduced from the tendency of consecutively determined values of the moving average value whether a failure of the conveyor belt 1 is to be expected in the period until the next maintenance cycle or not. Unforeseen downtimes can therefore be largely avoided and thus the productivity of a packaging machine equipped with such a monitoring device can be increased.

Landscapes

  • Control Of Conveyors (AREA)

Abstract

L'invention concerne un procédé et un dispositif pour surveiller un dispositif conçu pour transporter en continu un produit allongé, par exemple un fil métallique, un câble, une sangle (4) ou une bande. Le procédé selon l'invention consiste : à ajuster la contrainte de traction exercée sur le produit allongé par l'intermédiaire d'un rouleau libre (5); à détecter la déviation de ce rouleau libre (5); à déterminer la valeur d'une grandeur caractéristique de l'évolution résultante de ladite déviation du rouleau libre (5), telle que la valeur moyenne mobile; à comparer cette valeur avec une valeur de référence prédéterminée; et à émettre un avertissement par l'intermédiaire d'un signal (14) si l'écart entre les valeurs dépasse une valeur-seuil prédéterminée. Ce procédé permet d'indiquer au personnel exécutant une rupture imminente du produit allongé avant la rupture du produit et par conséquent avant toute période d'arrêt imprévue.
PCT/DE2006/001517 2006-08-30 2006-08-30 Procédé pour surveiller un dispositif de transport, et dispositif servant à la mise en oeuvre de ce procédé WO2008025305A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/DE2006/001517 WO2008025305A1 (fr) 2006-08-30 2006-08-30 Procédé pour surveiller un dispositif de transport, et dispositif servant à la mise en oeuvre de ce procédé
DE112006004106T DE112006004106A5 (de) 2006-08-30 2006-08-30 Verfahren zur Überwachung einer Fördereinricthung sowie Einricthung zur Durchführung des Verfahrens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2006/001517 WO2008025305A1 (fr) 2006-08-30 2006-08-30 Procédé pour surveiller un dispositif de transport, et dispositif servant à la mise en oeuvre de ce procédé

Publications (1)

Publication Number Publication Date
WO2008025305A1 true WO2008025305A1 (fr) 2008-03-06

Family

ID=38006927

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2006/001517 WO2008025305A1 (fr) 2006-08-30 2006-08-30 Procédé pour surveiller un dispositif de transport, et dispositif servant à la mise en oeuvre de ce procédé

Country Status (2)

Country Link
DE (1) DE112006004106A5 (fr)
WO (1) WO2008025305A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102234021A (zh) * 2010-04-24 2011-11-09 徐州泰荣煤矿设备有限公司 钢丝绳牵引胶带防逆转智能保护装置
CN102259754A (zh) * 2011-04-15 2011-11-30 徐州华峰测控技术有限公司 一种能声光报警的断带抓捕装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6926614B2 (ja) * 2017-04-14 2021-08-25 横浜ゴム株式会社 コンベヤベルトの管理システム

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2221296A1 (de) * 1972-04-29 1973-11-15 Filip Kukuruzovitz Sicherung fuer den antrieb von foerderbaendern
DE3131963A1 (de) * 1981-08-13 1983-02-24 Peter Lancier Maschinenbau-Hafenhütte GmbH & Co KG, 4400 Münster Foerderanlagen- und laufrollenueberwachungssystem
DE4011257A1 (de) * 1990-04-05 1991-01-31 Andreas Peter Erfassungseinrichtung fuer laengsrisse in einem stetig foerdernden gurt eines foerderbandes sowie fuer schieflauf
NL1020527C2 (nl) * 2002-05-03 2003-11-04 Conway Exploitatie En Beheer B Transportinrichting voor het transporteren van producten zoals deegstukken in een narijskast.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2221296A1 (de) * 1972-04-29 1973-11-15 Filip Kukuruzovitz Sicherung fuer den antrieb von foerderbaendern
DE3131963A1 (de) * 1981-08-13 1983-02-24 Peter Lancier Maschinenbau-Hafenhütte GmbH & Co KG, 4400 Münster Foerderanlagen- und laufrollenueberwachungssystem
DE4011257A1 (de) * 1990-04-05 1991-01-31 Andreas Peter Erfassungseinrichtung fuer laengsrisse in einem stetig foerdernden gurt eines foerderbandes sowie fuer schieflauf
NL1020527C2 (nl) * 2002-05-03 2003-11-04 Conway Exploitatie En Beheer B Transportinrichting voor het transporteren van producten zoals deegstukken in een narijskast.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102234021A (zh) * 2010-04-24 2011-11-09 徐州泰荣煤矿设备有限公司 钢丝绳牵引胶带防逆转智能保护装置
CN102259754A (zh) * 2011-04-15 2011-11-30 徐州华峰测控技术有限公司 一种能声光报警的断带抓捕装置

Also Published As

Publication number Publication date
DE112006004106A5 (de) 2009-08-20

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