DETERMINATION OF CONTACT STRESSES AND GAPS IN CHAIN TRANSMISSION HINGES

The article considers the questions of determination of contact stresses in the chain transmission hinges that need to be known for assessing their wear resistance, because the wear and tear of hinges is the most common type of damage to the chain gears. In this context the main attention was paid t...

Full description

Bibliographic Details
Main Authors: Yury V Belousov, Stanislav V Strashnov
Format: Article
Language:English
Published: Peoples’ Friendship University of Russia (RUDN University) 2018-12-01
Series:RUDN Journal of Engineering Research
Subjects:
Online Access:http://journals.rudn.ru/engineering-researches/article/view/18911
_version_ 1797934675786727424
author Yury V Belousov
Stanislav V Strashnov
author_facet Yury V Belousov
Stanislav V Strashnov
author_sort Yury V Belousov
collection DOAJ
description The article considers the questions of determination of contact stresses in the chain transmission hinges that need to be known for assessing their wear resistance, because the wear and tear of hinges is the most common type of damage to the chain gears. In this context the main attention was paid to determining the required clearance between the bushing and the pin of roller chain drives. This gap largely determines the character of the distribution and magnitude of contact stresses in the hinge, and, consequently, the durability of chain drives. A method of calculation of the maximum contact stresses in the chain transmission hinges is developed. It is shown that decreasing clearance in the hinges increases the contact angle between the pin and the bushing and reduces the maximum contact pressure. However, for the actual angles of contact the contact stress greatly exceeds the allowable average unit pressure, causing increased wear of the hinges. One of the possible solutions to this problem is the use of transition fits in hinges, in which the gaps and interferences are relatively small. When pressing the pins into in the bushings, due to cutting microasperities from the contact surfaces, the interference in the connection virtually disappears. Examples of determining gaps and contact stresses in the chain transmission hinges are provided.
first_indexed 2024-04-10T18:03:45Z
format Article
id doaj.art-5f022c892929486e82c5fb25bd634bef
institution Directory Open Access Journal
issn 2312-8143
2312-8151
language English
last_indexed 2024-04-10T18:03:45Z
publishDate 2018-12-01
publisher Peoples’ Friendship University of Russia (RUDN University)
record_format Article
series RUDN Journal of Engineering Research
spelling doaj.art-5f022c892929486e82c5fb25bd634bef2023-02-02T14:20:58ZengPeoples’ Friendship University of Russia (RUDN University)RUDN Journal of Engineering Research2312-81432312-81512018-12-0119214715410.22363/2312-8143-2018-19-2-147-15416637DETERMINATION OF CONTACT STRESSES AND GAPS IN CHAIN TRANSMISSION HINGESYury V Belousov0Stanislav V Strashnov1<p>Московский государственный технический университет им. Н.Э. Баумана (национальный исследовательский университет)</p><p>Российский университет дружбы народов (РУДН)</p>The article considers the questions of determination of contact stresses in the chain transmission hinges that need to be known for assessing their wear resistance, because the wear and tear of hinges is the most common type of damage to the chain gears. In this context the main attention was paid to determining the required clearance between the bushing and the pin of roller chain drives. This gap largely determines the character of the distribution and magnitude of contact stresses in the hinge, and, consequently, the durability of chain drives. A method of calculation of the maximum contact stresses in the chain transmission hinges is developed. It is shown that decreasing clearance in the hinges increases the contact angle between the pin and the bushing and reduces the maximum contact pressure. However, for the actual angles of contact the contact stress greatly exceeds the allowable average unit pressure, causing increased wear of the hinges. One of the possible solutions to this problem is the use of transition fits in hinges, in which the gaps and interferences are relatively small. When pressing the pins into in the bushings, due to cutting microasperities from the contact surfaces, the interference in the connection virtually disappears. Examples of determining gaps and contact stresses in the chain transmission hinges are provided.http://journals.rudn.ru/engineering-researches/article/view/18911шарниры цепиконтактные напряжения в шарнирах цепизазор в шарнирах цепипосадки шарниров цепи
spellingShingle Yury V Belousov
Stanislav V Strashnov
DETERMINATION OF CONTACT STRESSES AND GAPS IN CHAIN TRANSMISSION HINGES
RUDN Journal of Engineering Research
шарниры цепи
контактные напряжения в шарнирах цепи
зазор в шарнирах цепи
посадки шарниров цепи
title DETERMINATION OF CONTACT STRESSES AND GAPS IN CHAIN TRANSMISSION HINGES
title_full DETERMINATION OF CONTACT STRESSES AND GAPS IN CHAIN TRANSMISSION HINGES
title_fullStr DETERMINATION OF CONTACT STRESSES AND GAPS IN CHAIN TRANSMISSION HINGES
title_full_unstemmed DETERMINATION OF CONTACT STRESSES AND GAPS IN CHAIN TRANSMISSION HINGES
title_short DETERMINATION OF CONTACT STRESSES AND GAPS IN CHAIN TRANSMISSION HINGES
title_sort determination of contact stresses and gaps in chain transmission hinges
topic шарниры цепи
контактные напряжения в шарнирах цепи
зазор в шарнирах цепи
посадки шарниров цепи
url http://journals.rudn.ru/engineering-researches/article/view/18911
work_keys_str_mv AT yuryvbelousov determinationofcontactstressesandgapsinchaintransmissionhinges
AT stanislavvstrashnov determinationofcontactstressesandgapsinchaintransmissionhinges