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Wyszukujesz frazę "belt" wg kryterium: Temat


Tytuł:
Measurement of the friction parameters of a belt transmission under heavy load
Autorzy:
Kubas, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/2056095.pdf
Data publikacji:
2022
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
poly-V belt
belt transmission
belt slip
measurements
belt-pulley friction
Opis:
This article presents the results of measurements of a belt transmission with a poly-V belt 5PK, most often used in the industry, especially in industrial drives, agricultural machines and in the automotive industry. The main goal of the works was to obtain the dependence of the belt slip value on the measured, relatively high values of resistance torque. For this purpose, a series of measurements were made using a specialised research stand consisting of two alternating current motors and attached pulleys. It considered four cases of the value of the belt pre-tensioning force. In each of the cases, while making the measurements, the resistance of the passive pulley was increased, resulting in increasing values of belt slip. Finally, the achieved courses were approximated. The obtained results will be used to develop empirical models of friction at the belt-pulley interface. They can also be useful for belt manufacturers to make better belts, especially those subjected to higher loads.
Źródło:
Archiwum Motoryzacji; 2022, 95, 1; 18--31
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimizing splice geometry in multiply conveyor belts with respect to stress in adhesive bonds
Autorzy:
Bajda, M.
Błażej, R.
Hardygóra, M.
Powiązania:
https://bibliotekanauki.pl/articles/89032.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Wydział Geoinżynierii, Górnictwa i Geologii. Instytut Górnictwa
Tematy:
belt conveyor
conveyor belt
textile belt splices
splice testing
Opis:
This paper presents the results of investigations into stress distribution in the adhesive bonds of multiply conveyor belt splices. The splices were cold-vulcanized with the use of chemically hardening glues having various strength parameters. The research results demonstrated that the length of splices may be reduced without the risk of lowering their tensile strength and fatigue life. The paper presents stress values in adhesive joints of various belt types and the influence that the properties of belts, splices and splicing materials have on stress values in the adhesive bond of the splice.
Źródło:
Mining Science; 2018, 25; 195-206
2300-9586
2353-5423
Pojawia się w:
Mining Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A device for measuring conveyor belt thickness and for evaluating the changes in belt transverse and longitudinal profile
Urządzenie do pomiaru grubości oraz oceny zmian profilu poprzecznego i wzdłużnego taśmy przenośnikowej
Autorzy:
Błażej, R.
Jurdziak, L.
Kirjanów, A.
Kozłowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/329652.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:
belt wear
belt degradation
belt durability
taśma przenośnikowa
zużycie
degradacja
trwałość
Opis:
Loads acting on the conveyor belt cause it to undergo a continuous process of wear and tear. One of many symptoms indicating such wear and tear is the abrasion of the carrying cover and the pulley cover. Decrements in the belt’s cross-section reduce its puncture resistance, thus increasing the risk of core damage. Early detection of even the slightest damage to belt covers and the evaluation of damage increment may help the user to prepare a more precise schedule of current repairs. Such precision will in turn help to minimize losses due to belt conveyor emergency downtime. This article presents a device for measuring conveyor belt thickness and for evaluating the changes in the belt’s transverse and longitudinal profile. The measurements are performed continuously, along the belt axis. Belt thickness is measured on a flat section, during belt operation. The device may be applied to any type of belt used in mining industry. The measurement device is managed by an application called DiagBeltSonic, specially designed for this purpose. The application allows the user to define some basic information about the conveyor prior to the test. The measurement results show a sectional view of the belt along the length of the complete loop and also show the longitudinal and transverse profile of the tested belt.
Na skutek obciążeń działających na taśmę przenośnikową, ulega ona ciągłemu procesowi zużycia. Jedną spośród wielu oznak jej eksploatacji jest ścieranie okładki nośnej i bieżnej. Ubytki w przekroju poprzecznym taśmy zmniejszają ich wytrzymałość na przebicie co wpływa za zwiększenie ryzyka uszkodzenia rdzenia. Wczesne wykrycie najmniejszych uszkodzeń okładek oraz ocena ich narastania pozwoli użytkownikowi, dokładniej niż dotychczas, planować bieżące naprawy. To z kolei przełoży się w przyszłości na zminimalizowanie strat spowodowanych przerwami w pracy przenośnika taśmowego. W artykule przedstawiono autorskie urządzenie do pomiaru grubości oraz oceny zmian profilu poprzecznego i wzdłużnego taśmy przenośnikowej. Pomiar realizowany jest w sposób ciągły wzdłuż osi taśmy. Grubość taśmy mierzona jest na płaskim odcinku w trakcie pracy przenośnika. Rozwiązanie może być stosowane na każdym typie taśm stosowanych w górnictwie. Do obsługi urządzenia pomiarowego stworzono aplikację o nazwie DiagBeltSonic. Pozwala ona użytkownikowi na wprowadzenie podstawowych informacji dotyczących przenośnika przed rozpoczęciem pomiaru. Wyniki pomiaru przedstawiają przekrój taśmy na całej długości pętli oraz ukazują profil wzdłużny i poprzeczny badanej taśmy.
Źródło:
Diagnostyka; 2017, 18, 4; 97-102
1641-6414
2449-5220
Pojawia się w:
Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling conveyor belt passage with a driving drum using finite element methods
Autorzy:
Mikušová, N.
Milľo, S.
Powiązania:
https://bibliotekanauki.pl/articles/102488.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
belt conveyor
belt
finite element method
Opis:
Finite element methods are used in many disciplines for the development of products, typically in mechanical engineering (for example in automotive industry, biomechanics, etc.). Some modern programs of finite element methods have specific tools (electromagnetic, fluid and structural simulations). The finite elements methods allow detailed presentation of structures by bending or torsion, complete design, testing and optimization before the prototype production. The aims of this paper were model a conveyor belt passage with a driving drum. The model was created in Abaqus CAE program. The created model presented data about forces, pressures, and deformation of the conveyor belt.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 4; 239-246
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Roller damage detection method based on the measurement of transverse vibrations of the conveyor belt
Autorzy:
Bortnowski, Piotr
Król, Robert
Ozdoba, Maksymilian
Powiązania:
https://bibliotekanauki.pl/articles/2172035.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
belt conveyor
conveyor belt
belt vibrations
diagnostics
roller
idler
LSTM
autoencoder
Opis:
The article presents the detection of damage to rollers based on the transverse vibration signal measured on the conveyor belt. A solution was proposed for a wireless measuring device that moves with the conveyor belt along of the route, which records the signal of transverse vibrations of the belt. In the first place, the research was conducted in laboratory conditions, where a roller with prepared damage was used. Subsequently, the process of validating the adopted test procedure under real conditions was performed. The approach allowed to verify the correctness of the adopted technical assumptions of the measuring device and to assess the reliability of the acquired test results. In addition, an LSTM neural network algorithm was proposed to automate the process of detecting anomalies of the recorded diagnostic signal based on designated time series. The adopted detection algorithm has proven itself in both laboratory and in-situ tests.
Źródło:
Eksploatacja i Niezawodność; 2022, 24, 3; 510--521
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new tool in belts resistance to puncture research
Autorzy:
Bajda, M.
Błażej, R.
Jurdziak, L.
Powiązania:
https://bibliotekanauki.pl/articles/88905.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Wydział Geoinżynierii, Górnictwa i Geologii. Instytut Górnictwa
Tematy:
conveyor belt condition
condition monitoring
belt failures
Opis:
In the Belt Conveying Laboratory (LTT) at the Faculty of Geoengineering, Mining and Geology at Wroclaw University of Technology a new area of application has been found for the newly developed high resolution magnetic diagnostic device for assessment of steel cord conveyor belts condition. In addition to monitoring of belts during their operation on conveyors this device can be used in LTT as the new tool in belts resistance to puncture investigations. High resolution images of changes in magnetic field of magnetized cord wires can be used for evaluation of failures and cuts caused by dynamic impact of iron head (striker) during laboratory tests without belt cover removal. The usefulness of the device is even greater due to not only condition of steel cord belts can be evaluated, what for this device was developed, but it allows also on observations of failures in impact-resistant metal breakers in textile belts. Breakers are frequently made of thin wires vulcanized above carcass inside the top cover laterally to the center line of the belt. The aim of breakers is protection of the expensive core against failures caused by big lumps of rock with sharp edges falling onto belt surface in loading points. Their role is shock absorption to minimize gouging and resistance of longitudinal rips. Due to breaker wires can also be magnetized after changing the direction of samples of punctured belts they can be monitored using the developed device at the testing conveyor. In the paper the first outcomes of application of magnetic diagnostic device for evaluation of punctured steel cord belts and textile belts with metal breakers are presented.
Źródło:
Mining Science; 2016, 23; 173-182
2300-9586
2353-5423
Pojawia się w:
Mining Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Laboratory testing of conveyor textile belt joints used in underground mines
Autorzy:
Hardygóra, M.
Bajda, M.
Błażej, R.
Powiązania:
https://bibliotekanauki.pl/articles/972332.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Wydział Geoinżynierii, Górnictwa i Geologii. Instytut Górnictwa
Tematy:
conveyor belt
fabric belt joints
joint testing
Opis:
In order to achieve the high standards of safety and operational reliability required of belt conveyors, there is a requirement for systematic testing of conveyor belts and their joints. This article describes joint testing methods and presents an analysis of the causes of reduced strength of multi-ply belt joints. Testing was carried out at the Belt Conveying Laboratory (LTT) of Wroclaw University of Technology. Presented here is a proprietary method for the measurement of stress distribution in conveyor belt adhesive joints.
Źródło:
Mining Science; 2015, 22; 161-169
2300-9586
2353-5423
Pojawia się w:
Mining Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Design and Implementation of a Dynamic Testing Rig for Testing of Pipe Conveyor Belt and their Components
Autorzy:
Michalik, Peter
Molnár, Vieroslav
Fedorko, Gabriel
Powiązania:
https://bibliotekanauki.pl/articles/2201757.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
testing rig
pipe belt conveyor
conveyor belt
Opis:
Pipe conveyors represent a continuous transport system that is difficult to obtain real operating data from in terms of operational characteristics’ research. That is why the research of these conveyors is mainly supported with the data from special, static testing rigs. However, the measurements do not provide corresponding operating results and can differ from actual operating conditions. That is why, a dynamic testing rig was designed for the research which also represents the smallest pipe conveyor worldwide. The article describes options of conveyor belts and pipe belt conveyor components examination with the use of static and dynamic testing rig, and researches a new design and implementation of a dynamic testing rig - the smallest fully functional pipe belt conveyor in the world with a length of 11 m and belt width of 0.6 m. The said testing device can provide data obtained during dynamic operation of the pipe conveyor, which compared with a static rig increases the accuracy and value of obtained data and results.
Źródło:
Advances in Science and Technology. Research Journal; 2022, 16, 3; 155--164
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Theoretical basis for determining rolling resistance of belt conveyors
Autorzy:
Gładysiewicz, L.
Konieczna, M.
Powiązania:
https://bibliotekanauki.pl/articles/972328.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Wydział Geoinżynierii, Górnictwa i Geologii. Instytut Górnictwa
Tematy:
rolling resistance
belt
idler
conveyor belt
damping factor
Opis:
Conveyor belts are the most common way of mechanical handling equipment in industry, especially in underground and open-pit mines. Maintenance of conveyor belts generate high costs, there-fore energy savings belts have become popular in recent years. Constant development of continuous transport equipment and looking for savings implies necessary of carrying advanced theoretical research and analysis. In this case determine of indentation rolling resistance is the clue. Based on previous re-search authors suggested new theoretical model of determination rolling resistance. Authors proofed that stress distribution described in time coordinates coexists with lateral deformation of belt. In two dimensional Kelvin–Voigt model it has two components: the particular solution of the differential equation of belt’s model and an general solution (which is typical for harmonic load). In this new model authors included overlooked by others particular solution; that gives a possibility of designating the whole spectrum of changes in the value of the rolling resistance. The obtained results allow to specify new and more accurate damping factor.
Źródło:
Mining Science; 2016, 23; 105-119
2300-9586
2353-5423
Pojawia się w:
Mining Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Designing of the machine for cutting transport belts: conceptual works
Autorzy:
Kale, Aashutosh
Biszczanik, Aleksandra
Wałęsa, Krzysztof
Kukla, Mateusz
Berdychowski, Maciej
Wilczyński, Dominik
Powiązania:
https://bibliotekanauki.pl/articles/1837934.pdf
Data publikacji:
2020
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
transport belts cutting
flat transport belt
polyurethane belt
composite belt
knife cutting
knife penetration force
Opis:
Belt conveyors are commonly employed in manufacturing and excavation processes. One of the basic components of such equipment are flat transport belts which can be monolithic or composite. In both cases, the belts are most often made of plastic materials. The manufacturing process of flat transport belts usually involves two stages. During the first stage, belts of very high length of up to several hundred meters are manufactured with use of the correct technology for a given belt type. In order to be usable in the finished conveyor system, correct length of such belts is to be achieved. Considering the above, the subsequent stage of manufacturing requires cutting the belts down to the appropriate length and very often joining the ends to form a closed loop with specific circumference. In an attempt to answer the demand of the manufacturing industry, the authors took up design works on an automated device for crosswise cutting of monolithic and composite belts. This article presents three construc-tion concepts of the authors’ own design together with an analysis of construction and operating factors which affect their usability. The presented discussion leads to selecting one of the solutions for which a drive system concept designed by the authors is proposed. Additionally, an analysis of the influence of the cutting knife geometry on cutting force is provided.
Źródło:
Acta Mechanica et Automatica; 2020, 14, 3; 144-153
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A method of discretising the belt in a flat model of a belt transmission
Autorzy:
Kubas, K.
Powiązania:
https://bibliotekanauki.pl/articles/263107.pdf
Data publikacji:
2017
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
poly-V belt
belt transmission
discrete model of belt
pas poliklinowy
przekładnia cięgnowa
model dyskretny pasa
Opis:
The article presents a method of discretising a belt used in a transmission model with any number of pulleys and tensioning rollers and any direction of wrapping the pulleys or rollers. The positions of the discretising points are formulated in a global coordinate system. The method allows for arbitrary placement of pulleys and tensioning rollers. It also consequently allows to calculate the length of the belt, resulting from the geometry of the transmission, and the length of the belt, resulting from the coordinates of the discretising points that lie on its circumference. The method presented here allows to estimate the number of points that would provide satisfactory accuracy of the belt’s curvature surrounding the individual pulleys and rollers. In the paper presented comparison between two proposed ways of estimating. Designated points can be used as input data to analyse the belt dynamics with the belt modelled as rigid elements connected to one another by translational or rotational spring-damping elements.
Źródło:
Archiwum Motoryzacji; 2017, 78, 4; 93-105
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A model for dynamic analysis of a 5pk belt transmission in dry or wet conditions
Autorzy:
Kubas, K.
Powiązania:
https://bibliotekanauki.pl/articles/263356.pdf
Data publikacji:
2015
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
belt transmissions
dynamics analysis
friction
poly-V belt
wet belt
przekładnie pasowe
analiza dynamiki
tarcie
pas poliklinowy
Opis:
A belt transmission model with dry or partially wet belt models used for dynamic analysis has been presented in this paper. A two-dimensional discrete model was created, consisting of rigid elements connected with each other by means of longitudinal and torsional spring-damping elements (SDEs). The belt-pulley contact phenomena were described with the use of a model with appropriate stiffness and damping between the contacting surfaces and a simplified Threlfall friction model was used to describe the friction phenomenon. Motion of the transmission is triggered under the influence of torque loads applied on the pulleys. Calculations results are presented of reaction, contact and friction forces acting on dry and partially wet belt. Finally, an example of using the model to analyse the dynamics of a wet automotive belt transmission system driving the alternator and coolant pump has been presented.
Źródło:
Archiwum Motoryzacji; 2015, 70, 4; 75-96
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zwiększenie wydajności procesu regeneracji taśm przenośnikowych dla górnictwa odkrywkowego
Increasing the efficiency of the regeneration process conveyor belts opencast mining
Autorzy:
Wróbel, J.
Sygut, P.
Powiązania:
https://bibliotekanauki.pl/articles/109041.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
taśmy przenośnikowe
doskonalenie procesu produkcyjnego
regeneracja taśm przenośnikowych
conveyor belt
conveyor belt condition
conveyor belt regeneration
Opis:
W pracy przedstawiono wyniki badań zrealizowanych w jednym z krajowych przedsiębiorstw zajmujących się regeneracją taśm przenośnikowych wykorzystywanych w górnictwie odkrywkowym. Dokonano charakterystyki stosowanych taśm przenośnikowych pod względem budowy i ich przeznaczenia. Na podstawie wyników otrzymanych podczas badań przedstawiono zalecenia, które mogą być wykorzystane w doskonaleniu istniejącego procesu regeneracji taśm przenośnikowych oraz zwiększenia jego wydajności.
The paper presents the results of research carried out in one of the national companies involved in regeneration of conveyor belts used in opencast mining. It have been made characteristics of conveyor belts used in construction and its use. Based on the results obtained during the study are presented recommendations that can be used to improve the existing process of conveyor belts regeneration and to increase its efficiency.
Źródło:
Archiwum Wiedzy Inżynierskiej; 2016, 1, 1; 3-5
2544-2449
Pojawia się w:
Archiwum Wiedzy Inżynierskiej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the results of the strength tests of finger splices
Autorzy:
Kirjanów, A.
Powiązania:
https://bibliotekanauki.pl/articles/89001.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Wydział Geoinżynierii, Górnictwa i Geologii. Instytut Górnictwa
Tematy:
conveyor belt
finger splice
tensile strength of conveyor belt joints
Opis:
The paper analyses the results of the strength tests of finger splices of conveyor belts carried out at the Belt Transport Laboratory (LTT). The article presents a statistical analysis of data and assessment the reasons of the reduced strength of finger splices. The results of these tests are a valuable source material, which should be used in further works.
Źródło:
Mining Science; 2015, 22, Special Issue 2; 31-37
2300-9586
2353-5423
Pojawia się w:
Mining Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efficiency increasing of belt conveyor’s drive by ceramic lagging of driving pulley
Wzrost wydajności przenośników pasowych w wyniku nałożenia okładziny ceramicznej na bębny
Autorzy:
Jurman, J.
Cholevova, I.
Onderkova, I.
Powiązania:
https://bibliotekanauki.pl/articles/410185.pdf
Data publikacji:
2012
Wydawca:
STE GROUP
Tematy:
conveyor belt
drum
heat
Opis:
In any point of the belt contact with the drum a relative speed compensation takes place that is carried out by a slippage even when the relevant contact spots are fairly clean and dry. This leads to heat generation that is being absorbed by both materials involved – by the belt as well as by the drum. Unlike the belt, the drum lagging would increase its temperature up to a certain limit that depends on number of factors. When the lagging surface temperature is reaching appx. 60°C some structural changes in the lagging material take place and further rise of temperature can create a risk of belt inflammation and destruction of the driving unit. This can be avoided by lagging the drum with new materials that eliminate any friction on the contact surfaces and that are heat resistant.
Źródło:
Management Systems in Production Engineering; 2012, 2 (6); 18-21
2299-0461
Pojawia się w:
Management Systems in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł

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