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    Wyświetlanie 1-5 z 5
    Tytuł:
    The effect of machining conditions on the forces in the process of roller brush machining
    Autorzy:
    Matuszak, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/102899.pdf
    Data publikacji:
    2017
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    brushing
    machining conditions
    radial force
    cutting force
    Opis:
    Because of its advantages, brushing processing has many uses. The main ones include the removal of corrosion products, surface cleaning, deburring and shaping the properties of the surface layer. The intensity of these processes depends on the degree of impact of brush fibres on the work surface. In the case of tools, in which the resilient fibres are the working elements, forces in the brushing process, apart from the machining parameters, depend on the characteristics and overall dimensions of individual fibres. The paper presents the results of studies of the influence of technological parameters and type of fibres on the radial force in the brushing process.
    Źródło:
    Advances in Science and Technology. Research Journal; 2017, 11, 4; 294-300
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Solutions of the Roller Conveyor in Terms of Logistics Provider
    Autorzy:
    Madleňáková, Lucia
    Matúšková, Mária
    Madleňák, Radovan
    Rudawska, Anna
    Rybicka, Iwona
    Powiązania:
    https://bibliotekanauki.pl/articles/957997.pdf
    Data publikacji:
    2018
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    conveyor
    belt
    sorting
    transporter
    pas
    sortowanie
    Opis:
    Implementation of modern handling facilities contributes to the quality performance of each business subject. Nowadays, mechanization and automation of processes associated with the handling of shipments finds an important place especially under the conditions of the postal and logistics sector, which is growing due to ecommerce. The method of allocating large mechanization and automation, the performance and other characteristics significantly influence the realization of processing shipments in relation to the quality of service but also labour intensity and human performance. The paper deals with the issue of the appropriate location of the conveyor within the space available depot, as well as calculation of performance and technical parameters and multi-criteria evaluation for an appropriate choice of the conveyor. Such factors as energy performance, noise, safety at work, location and so on, were considered.
    Źródło:
    Advances in Science and Technology. Research Journal; 2018, 12, 4; 1-9
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mechanism of origin of structural vibrations in conical roller bearings
    Autorzy:
    Marchuk, V. I.
    Ravenets, L. M.
    Marchuk, S. V.
    Świć, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/103313.pdf
    Data publikacji:
    2014
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    vibroactivity
    geometric undulation
    structural vibration microtopography
    design
    technological factors
    Opis:
    This paper investigates the mechanism of origin of structural, structural and technological defects of rollers. The technique for integrated indicator of vibration working surfaces of the rings to determine the level of life of the finished part to the operation as part of the bearing and predict the vibroacoustic characteristics of rolling bearings. It was established that technological defects cause low-frequency and high-frequency vibrations. The question about the extent to which it is necessary to strengthen the tolerances on the parameters of bearings on which vibration level is determined not errors bearing parts and their structural properties. Calculated values of the amplitudes vibroacceleration due to the rigidity of the bearing vibrations are so small that in some cases adopted precision calculations turned enough to detect such vibrations. Thus, when tested on the vibro-acoustic installations structural vibration does not play an important role.
    Źródło:
    Advances in Science and Technology. Research Journal; 2014, 8, 23; 68-72
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The study of the surface quality of the thin wall bearing units to rolls roller seats pipe conveyor
    Autorzy:
    Michalik, P.
    Zajac, J.
    Fabianova, J.
    Mital, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/102283.pdf
    Data publikacji:
    2017
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    thin wall
    roughness
    pipe conveyor
    bearing houses
    Opis:
    The article deals with the study of surface roughness of thin-walled houses bearing rollers for roller mills. The size and shape of the rear end housing was designed in order to measure the surface roughness of the inner cylindrical bearing surface with a wall thickness of 4, 5 and 6 mm. For comparison the roughness was measured also on the wall with a thickness 26 mm. The welded housing and the base plate was clamped in the machine vice jaw with a width of 150 mm. Material components bearing small house has been fine-grain weld able steel bearing S355. For finishing the hole with a diameter of 40 mm, a tool with a diameter of 32 mm was used with three cutting blades SDXT09M405R MM. Spindle speed was 1350 rev / min. Tool feed speed was 850 mm / min. The surface roughness was measured with a Mitutoyo SJ 400th.
    Źródło:
    Advances in Science and Technology. Research Journal; 2017, 11, 2; 192-197
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Centering Technique for Cast-Iron Moulds in Horizontal Centrifugal Casting
    Autorzy:
    Hrabovský, Leopold
    Mašlonka, Ivan
    Kubín, Tomáš
    Mantič, Martin
    Powiązania:
    https://bibliotekanauki.pl/articles/2024078.pdf
    Data publikacji:
    2021
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    centrifugal casting
    centering of cast-iron moulds
    driving conic roller
    friction drive
    odlewanie odśrodkowe
    centrowanie form żeliwnych
    napędzający wałek stożkowy
    napęd cierny
    Opis:
    In this contribution, a technique of axial centering of cast-iron moulds, e.g. the so-called “rail system” as suggested by KonCAD CZ s.r.o. for the application of horizontal centrifugal metal casting process, is described, evaluated, and finally not recommended for practical use. The proposed principle of the axial centering technique is based on the fact that on the cast-iron mould external perimeter there are welded, perpendicularly to the cast-iron longitudi-nal centreline, two rings the external shape of which is similar to the shape of the Vignole (flat-bottomed) rail. The cast-iron moulds are supported by two pairs of opposite conic roll-ers. The cast-iron mould is driven by a contact power transmission, i.e. by the friction meth-od employing a pair of conic rollers and acting over the welded rings to the cast-iron mould. The circumferential force transfer is carried out by the friction between the cast-iron mould rings and the two driving rollers. Both driving and driven rollers have similar shapes analo-gous to a tyred wheel profile. The two driving rollers are tightly fit on the common drive shaft, the centreline of which runs in parallel with the cast-iron mould longitudinal centre-line. Both driving and driven rollers have a similar shape as a tyred wheel profile. The neces-sity of creating of a sufficient thrust force of the cast-iron mould against the rollers causes wear conditions at the rounding of external shapes of rings, bearings, as well as roller con-tact conic surfaces.
    Źródło:
    Advances in Science and Technology. Research Journal; 2021, 15, 1; 10-17
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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