TY - GEN A1 - Schneider, Robert A1 - Fritsch, Tim A1 - Hernschier, Stephan A1 - Magister, Jan A1 - Täschner, Dirk A1 - Simon, Sylvio ED - Katterfeld, André ED - Krause, Friedrich ED - Fottner, Johannes ED - Günthner, Willibald A. ED - Pfeiffer, Dagmar T1 - Methode zur zustandsbezogenen Instandhaltung auf Grundlage von Schallmessungen am Beispiel ausgewählter Gurtförderanlagen T2 - 27. Fachtagung Schüttgutfördertechnik 2023 : "Innovationen, Nachhaltigkeit, Trends, Effizienz, Lebensdauer" : am 20. und 21. September 2023 in Magdeburg : herausgegeben als Begleitband zur gleichnamigen Fachtagung N2 - Die Erfassung der Eigenschaften von Tragrollen und Fördersystemen ist nicht nur im Rahmen der Fertigung und Qualitätssicherung erforderlich, sondern insbesondere auch nach Inbetriebnahme und während der gesamten Laufzeit der Förderanlage. Im Regelfall erfolgt kurz nach der Erstinbetriebnahme die Abnahmekontrolle durch den Hersteller oder Anlagenbetreiber, indem die im Pflichtenheft aufgeführten Parameter überprüft werden. Bei Inbetriebnahme: - grundsätzliche Funktionskontrolle mit und ohne Fördergut - Anlaufverhalten - Kontrolle auf Gurtschieflauf - Ausrichtung der Gerüstfelder und Tragrollengirlanden - akustische Abnahme für immissionsrelevante Anlagen - zusätzlich Gurtspannung, Kontrolle der Getriebe, Antriebe und Gurttrommeln hinsichtlich elektrischer Parameter, Schlupf usw. Im Zuge des Betriebs tritt kontinuierlicher Verschleiß, insbesondere im Bereich der Tragrollen auf. Um ungeplante Stillstände und Störungen zu vermeiden, werden verschiedene Kontrollen und Instandhaltungsmaßnahmen durchgeführt (Lars Sternitzke, LEAG, 2021): - regelmäßige Kontrollfahrten durch z.B. mobilen Löschtrupp, Überprüfung auf grobe optische und akustische Auffälligkeiten - automatische Wärmebildkameras zur Detektion von Heißläufern, insbesondere bei brandgefährdeten Anlagen (Kohle) - jährliche Schallmessungen bei immissionsrelevanten Anlagen KW - Tragrolle KW - Zustandsbezogene Instandhaltung KW - Verschleiß KW - Akustik KW - Schallleistung KW - Akustische Kamera Y1 - 2023 SN - 978-3-948749-29-3 U6 - https://doi.org/10.25673/97279 SP - 107 EP - 122 ER - TY - GEN A1 - Simon, Sylvio A1 - Taeschner, Dirk A1 - Rieder, Thomas A1 - Schneider, Robert A1 - Hernschier, Stephan A1 - Magister, Jan A1 - Fritsch, Tim A1 - Abbasov, Ilgar A1 - Turabov, Dashqin A1 - Globa, Svetlana T1 - Investigation in characteristics of belt conveyors and their idler rollers for coal-fired power plants T1 - Исследования характеристик ленточных конвейеров и их несущих роликов для угольных электростанций T2 - Safety and Reliability of Power Industry N2 - Belt conveyors are highly efficient systems used in mining and other industries to transport bulk materials, mainly brown coal and overburden, over distances ranging from short distances to several kilometres. For technical reasons, their operation is associated with noise emissions. During inspections and maintenance this can lead to increased noise exposure of employees. In the vicinity of residential buildings or in areas needing protection, exceeding the emission limits can lead to a temporary restriction of the operation of these high performance installations. Measures are required to reduce the noise impact primarily at the source or in the immediate vicinity. The acoustic and mechanical parameters are investigated on a test bench at the Technical University of Brandenburg (BTU) Cottbus-Senftenberg as part of the drive assembly tests in cooperation with LEAG. The stages of these tests are: Run-up test. In this test the supporting roller is accelerated under test load to a circumferential speed of 10 m/s and the sound pressure level is recorded. This makes it possible to calculate the sound emission as a function of the peripheral speed; Recording the geometry of the idler gear. An accurate description of the geometry of the idler housing allows conclusions to be drawn about the possible causes of excitation. The defined characteristics serve to quantify the acoustic effect of the driven rollers and derive specifications for use in belt conveyor systems. Based on the special requirements to the planned belt conveyor system, an adapted selection of low-noise idler rollers can be made at an early stage on the basis of specified parameters and confirmed test results. KW - belt conveyor KW - noise reduction KW - test stand KW - sound pressure level Y1 - 2021 U6 - https://doi.org/10.24223/1999-5555-2021-14-3-125-133 SN - 2542-2057 SN - 1999-5555 VL - 14 IS - 3 SP - 125 EP - 133 ER - TY - GEN A1 - Schneider, Robert A1 - Danneberg, Nina A1 - Rieder, Thomas A1 - Fritsch, Tim A1 - Hernschier, Stephan A1 - Magister, Jan T1 - Presentation of a new type of axial clearance testing device and evaluation of suitable limit values for the axial displaceability rollers with a bearing size of 6308, 6310 and 6312 T2 - “Machine-building and Energy : New Concepts and Technologies” International Scientific-practical Conference materials N2 - In the following, the results of the investigations on rollers with bearing failures from a bearing size above 6308 are presented. The values for the axial clearance were too low, which turned out to be the cause of the damage. DIN 22112 part 2 only lists limit values for the axial displacement of rollers up to a bearing size of 6306. An evaluation of idlers with larger bearings in terms of quality was not possible until now. Based on the results, a new axial test device was developed and comparative tests were carried out on the rollers using the test device from DIN 22112 Part 3. KW - Axial displaceability rollers KW - Bearing KW - Belt conveyor KW - Bulk materials Y1 - 2021 UR - https://www.researchgate.net/publication/392130645_Machine-building_and_Energy_New_Concepts_and_Technologies_International_Scientific-practical_Conference_MATERIALS SP - 45 EP - 47 ER - TY - GEN A1 - Rieder, Thomas A1 - Hernschier, Stephan A1 - Magister, Jan A1 - Fritsch, Tim A1 - Täschner, Dirk T1 - Unbalance and noise of rollers on conveyor belts T2 - “Machine-building and Energy : New Concepts and Technologies” International Scientific-practical Conference materials N2 - The further investigation of the effect of unbalance on the sound emission of a conveyor belt roller uses the help of defined adhesive strips that simulate caked material. The unbalance resulting from the adhesive strip becomes "balanced" with a second adhesive strip that is offset by 180° on the roller surface. The proof of a geometry-related excitation to sound radiation is then provided by a theoretically expected level increase of 3 dB. Depending on the rotational frequency, the change in geometry of the two adhesive strips doubles the excitation. For geometry-related changes and the peripheral speed of the test roller selected for the comparison the conditions must be constant. KW - Sound emission KW - Conveyor rollers KW - Unbalance KW - Conveyor belts Y1 - 2021 UR - https://www.researchgate.net/publication/392130645_Machine-building_and_Energy_New_Concepts_and_Technologies_International_Scientific-practical_Conference_MATERIALS SP - 42 EP - 44 ER -