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Wyszukujesz frazę "slewing bearing" wg kryterium: Temat


Wyświetlanie 1-8 z 8
Tytuł:
A peculiarity of determining a static carrying capacity for the one-row ball slewing bearing loaded the large radial force
Autorzy:
Śpiewak, S.
Powiązania:
https://bibliotekanauki.pl/articles/246680.pdf
Data publikacji:
2016
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
slewing bearing
one row ball slewing bearing
radial force
axial force
tilting moment
curve of the static carrying capacity
numerical modelling
Opis:
Slewing bearings are applied commonly in the following devices inter alia: harbour cranes, traveling cranes, radar stations, machinery underground and an opencast mining, armaments industry, building machines, medical analysis devices, rotary kilns, manufacturing systems, a power engineering. A static limiting load curve of the slewing bearings describes ranges of the allowable loads, which the bearing can be safely carried for assumption by a manufacturer durability. The static carrying capacity of a slewing bearing describe the relationship between a tilting moment M and an axial force Fa for assumed a value of a radial force Fr. The article concerns problems related to catalo selection of rolling bearings which are loaded the large radial forces which may by differently directed in relation to a tilting moment's vector. Manufactures of the slewing bearings mostly does not present in product catalogs of a static limiting load curve, which have taken into account an action the radial forces. According to an INA company, the radial forces are reduced to determining an equivalent tilting moment and an equivalent axial force. In this work, the static limiting load curves have been determined based on the FEM models, the equations of contact mechanics for the ball and the bearing raceway. The models were performed by use the ADINA system. Juxtaposition of results obtained on a basis of method's INA company and own model have been presented in form the static limiting load curves. The object of the analysis was the one row ball slewing bearing, domestic production, which is used in excavator type F250H.
Źródło:
Journal of KONES; 2016, 23, 3; 533-540
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Influence of the Geometrical Parameters for Stress Distribution in Wire Raceway Slewing Bearing
Autorzy:
Gunia, D.
Smolnicki, T.
Powiązania:
https://bibliotekanauki.pl/articles/139896.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
wire race bearing
Hertz stress
slewing bearing
łożysko drutowe
naciski Hertza
łożysko ślizgowe
Opis:
This paper presents the current study of the distribution of stresses for fourpoint contact wire race ball bearing. The main aim of this article is to define the most important geometrical rules in a wire-race bearing. The results for bearings of different geometrical parameters are presented. In the study, one also estimates the distribution of internal pressure in particular bearing elements.
Źródło:
Archive of Mechanical Engineering; 2017, LXIV, 3; 315-326
0004-0738
Pojawia się w:
Archive of Mechanical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Damage risk of the raceway edge arise in four-point slewing bearing
Autorzy:
Krynke, Marek
Mielczarek, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/973027.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
slewing bearing
contact angle
contact zone
łożyska wieńcowe
kąt zwilżania
strefa styku
Opis:
In the article some forms of damage to raceway of slewing bearings for single-row ball bearing slewing ring with four-point contact and their causes were shown. Changes of the contact angle and its influence on the geometry for contact zone of the rolling elements raceway were analyzed. An identification of changes for contact angle of individual balls for different parameters of the contact was received. It was showed that contact angles of some rolling elements were increasing. It can cause damage to the raceway by spalling or rolling out of edge of the bearing ring. Ways of avoiding too early damage to the raceway at the stage of the design and the selection of coronary bearings were suggested.
Źródło:
System Safety : Human - Technical Facility - Environment; 2019, 1, 1; 632-638
2657-5450
Pojawia się w:
System Safety : Human - Technical Facility - Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quantitative determination of the reasons of errors concerning the calculation of the bearing capacity of slewing bearings
Kwantyfikacja przyczyn błędów dotyczących obliczania nośności łożysk tocznych wieńcowych
Autorzy:
Jagusiak-Kocik, M.
Krynke, M.
Powiązania:
https://bibliotekanauki.pl/articles/112929.pdf
Data publikacji:
2016
Wydawca:
STE GROUP
Tematy:
slewing bearing
carrying capacity
FMEA
Ishikawa diagram
łożysko wieńcowe
nośność statyczna
metoda FMEA
diagram Ishikawy
Opis:
In the article the factors influencing the improvement of the quality and improvement of process of calculation of bearing capacity of rolling slewing bearings. An aim of conducted deliberations is the identification and elimination of sources of errors in determining the characteristics of slewing bearing capacity. The result of the research is to determine the risk of making mistakes and tips for designers of slewing bearings.
W artykule przedstawiono czynniki wpływające na poprawę jakości i udoskonalenia procesu obliczania nośności łożysk tocznych wieńcowych. Celem prowadzonych rozważań jest znalezienie i wyeliminowanie źródeł powstawania błędów przy określaniu charakterystyk nośności łożysk tocznych wieńcowych. Wynikiem prowadzonych badań jest określenie stopnia ryzyka popełniania błędów oraz wskazówki dla projektantów łożysk tocznych wieńcowych.
Źródło:
Systemy Wspomagania w Inżynierii Produkcji; 2016, 3 (15); 87-96
2391-9361
Pojawia się w:
Systemy Wspomagania w Inżynierii Produkcji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Safety management at the design stage of rotation node in mobile crane
Autorzy:
Krynke, Marek
Mielczarek, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/23944765.pdf
Data publikacji:
2022
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
safety management
mobile crane
slewing bearing
FEM (Finite Element Method) model
zarządzanie bezpieczeństwem
łożysko obrotowe
metoda elementów skończonych (MES)
Opis:
The article analyzes the safety aspects related to the construction and operation of a mobile crane. The load-bearing capacity of the boom sub-assembly rotation node was tested in a mobile crane. When identifying the load, the uneven compliance of the supporting components was taken into account. The considerations are illustrated with an example of a mobile crane slewing bearing with a lifting capacity of 50 tons. The basic problems of building the computational model are discussed and the results of the load bearing capacity of the slewing ring bearing for different positions of the load-bearing component of the tested machine are presented. An analysis of the load of the rolling elements in a slewing ring bearing was carried out and the reasons for changes in the load capacity in relation to the methods of calculating the load capacity, assuming non-deformability of the bearing rings, were indicated. It has been shown that deformations of the supporting frames are so large that they significantly change the distribution of forces transmitted by individual bearing rollers.
Źródło:
System Safety : Human - Technical Facility - Environment; 2022, 4, 1; 116-127
2657-5450
Pojawia się w:
System Safety : Human - Technical Facility - Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of causes and effects errors in calculation of rolling slewing bearings capacity
Autorzy:
Krynke, M.
Mielczarek, K.
Powiązania:
https://bibliotekanauki.pl/articles/112049.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
FMEA method
FMEA
Failure Mode and Effect Analysis
slewing bearing
carrying capacity
quality
metoda FMEA
metody zarządzania jakością
łożysko obrotowe
nośność
Opis:
In the paper the basic design features and essential assumption of calculation models as well as the factors influencing quality improvement and improvement of calculation process of bearing capacity of rolling slewing bearings are discussed. The aim of conducted research is the identification and elimination of sources of errors in determining the characteristics of slewing bearing capacity. The result of the research aims at determining the risk of making mistakes and specifying tips for designers of slewing bearings. It is shown that there is a necessity fora numerical method to be applied and that real conditions of bearing work must necessarily be taken into account e.g. carrying structure deformations as the first ones.
Źródło:
Production Engineering Archives; 2016, 12, 3; 38-41
2353-5156
2353-7779
Pojawia się w:
Production Engineering Archives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of the stiffness of 3D-printed wire raceway slewing bearing based on simplified FEA model and experiment
Autorzy:
Gunia, Dominik
Smolnicki, Tadeusz
Stańco, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/38907108.pdf
Data publikacji:
2023
Wydawca:
Instytut Podstawowych Problemów Techniki PAN
Tematy:
wire raceway bearings
slewing bearings
bearing stiffness
3D printing
Opis:
The wire-raceway bearings are a subcategory of slewing bearings. Their popularity has recently increased due to their advantages, including weight that is lower than that of other similar slewing bearings, and the ability of transferring various loads, such as axial load, radial load and tilting moment. Currently, metal rings (steel or aluminum) are the most popular choice for all kinds of slewing bearings; however, with advent of additive manufacturing a new ‘chapter’ opens for the development of wire raceway slewing bearings, where the interface between the rolling elements and the raceway is the same as in other bearings (i.e., contact between steel-steel). At the same time, rings can be made from other lightweight materials, such as composites or plastics, with high-level shape customization due to 3D printing. Stress between wire raceways and rings is much lower. Hence, rings’ lower material properties do not significantly affect bearing capacity. Proper calculation methodology should be created to analyze lightweight wire raceway bearings, as materials can differ significantly from typical materials covered by current theories. The paper presents a prototyped 3D-printed bearing with rings made from polylactic acid (PLA). The bearing stiffness is measured and compared with the simplified finite element analysis (FEA) model using the equivalent bearing model with nonlinear springs and beam elements.
Źródło:
Engineering Transactions; 2023, 71, 3; 383-397
0867-888X
Pojawia się w:
Engineering Transactions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Management the safety of exploitation of the rotation mechanism in a self-propelled crane
Autorzy:
Krynke, Marek
Vaško, Alan
Powiązania:
https://bibliotekanauki.pl/articles/88690.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
stability of cranes
slewing bearings
bearing capacity
stabilność dźwigów
łożyska wieńcowe
nośność podłoża
Opis:
The article analyzes of the load capacity of the rotation mechanism of the boom arm sub-assembly for a self-propelled crane. The uneven flexibility of systems supporting structures of the machine was taken into account in the identification of the load. The consideration are illustrated by the example slewing bearing from self-propelled crane. FEM method was used for calculations. The basic problems of construction of numerical model were discussed. Sample calculations of bearing carrying capacity has been done taking into account flexibility of bearings supporting structures, which also allowed to define the internal load distribution in the bearing. On example of the supporting structure of the mobile crane DST 5050 the internal load distribution in the crane bearing at different positions of the crane machine body were defined. During the rotation of the crane body priority angels were indicated. It has been shown that the deformations of the supporting frames are so large that they significantly change the distribution of forces transmitted by the individual bearing rollers.
Źródło:
System Safety : Human - Technical Facility - Environment; 2019, 1, 1; 624-631
2657-5450
Pojawia się w:
System Safety : Human - Technical Facility - Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-8 z 8

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