Wyniki wyszukiwania - BazTech

1

A geometrical surface texture study of sliding sleeves and pins after bench tests

Olejarczyk Krzysztof, Wikło Marcin

Diagnostyka

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2023

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Vol. 24, No. 4

art. no. 2023412

EN

Objectives was to determine the durability of pins and sleeves used in the construction of a cycloidal gear. The methods used were based on a comparative analysis of selected macro photos of their surfaces and representative surface profiles recorded before and after the bench tests and the Ra and Rz surface roughness values determined on their basis. Before and after the bench tests, the weight of each sleeve and pin was measured, their surface profiles were recorded and micro photos of these surfaces were taken. Based on each recorded surface profile, the roughness parameters Ra and Rz were determined. The advantages of using steel sleeves in the cycloidal drive structure, increasing its durability, have been demonstrated by the low mass wear of the sleeves and the low surface roughness parameters Ra and Rz. It was shown that the appropriate accuracy of the pins and sleeves is necessary.

2

A geometrical surface texture study of cycloid drive discs after bench tests

Olejarczyk Krzysztof, Kalbarczyk Marek

Tribologia

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2021

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nr 3

27--33

EN

The article presents the results of a geometrical surface texture study of cycloid drive discs after bench tests. For this purpose, the working surfaces, such as peak and valley areas of the epicycloid and the holes inner surfaces of both discs, were investigated using contact profilometry. From each surface, a transverse profiles were extracted, before and after 50 cycles of bench test. The discs and the profiles were examined for signs of wear and roughness changes. For each profile, the Ra and Rz roughness parameters were determined. On the base of the obtained profiles and the values of roughness parameters, it can be stated that the assumed test parameters provide stable working conditions, with an uninterrupted lubrication film, which results in practically negligible and unmeasurable wear. Taking into account the operating specification of a helicopter winch as an example of potential application of the presented cycloidal drive, the developed solution fulfils the requirements concerning wear resistance

PL

W artykule zaprezentowano wyniki badań laboratoryjnych trwałości kół przekładni cykloidalnej. W tym celu z powierzchni współpracy kół wyodrębniono obszary szczytu i doliny powierzchni epicykloidalnej, a także wewnętrzne powierzchnie otworów, które poddano badaniom przy użyciu profilometrii stykowej. Dla każdej z powierzchni wyznaczono profile chropowatości przed i po 50 cyklach testu stanowiskowego. Koła, jak również profile zostały poddane analizie pod kątem obecności śladów zużycia i zmian chropowatości. Dla każdego z uzyskanych profili wyznaczono parametry chropowatości Ra i Rz. W oparciu o uzyskane profile i wartości parametrów chropowatości można stwierdzić, że przyjęte parametry testowe zapewniają stabilne warunki pracy z nieprzerwanym filmem smarowym, czego efektem jest niemalże pomijalne, niemierzalne zużycie. Jednym z przykładowych zastosowań opracowanej przekładni cykloidalnej jest wyciągarka śmigłowcowa, a biorąc pod uwagę specyfikę jej pracy, uzyskane rozwiązanie konstrukcyjne spełnia wymagania dotyczące zapewnienia wystarczającej odporności na zużycie.

3

Wybrane obliczenia ryglowego hamulca w manipulatorach wykorzystywanych w technologii systemów automatyzacji sortowania i pakowania

Kołodziejczyk Krzysztof, Król Kazimierz, Wikło Marcin, Olejarczyk Krzysztof

Autobusy : technika, eksploatacja, systemy transportowe

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2019

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R. 20, nr 12

140--145

PL

W artykule omówiony został hamulec ryglowy do zastosowań w robotyce i wybrane zagadnienia związane z metodyka obliczeń jego elementów.

EN

The article discussed the mechanical bolt brake for use in robotics and selected issues related to the methodology of calculating its elements.

4

Wear Assessment of Sliding Sleeves in a Single-Stage Cycloidal Drive

Żurowski Wojciech, Olejarczyk Krzysztof, Zaręba Renata

Advances in Science and Technology. Research Journal

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2019

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Vol. 13, no 4

239--245

EN

In the paper, the issue of sliding sleeves wear in a cycloidal transmission was addressed. The working model of a cycloidal drive was constructed and tested in the special rig, and its sleeves underwent detailed analysis afterwards. The sleeves were produced by the sintering technique out of Selfoil bronze with self-lubricating properties. In particular, their surface appearance, weight loss and dimensional changes were assessed; as additionally, the chemical content of the gearbox oil was analyzed. The differences in the sleeves wear were pointed out, related to their positions in the transmission.