Foldable slewing crane

Bibliographic Details
Main Author: Pedrosa, Delfim Duarte Rolo
Publication Date: 2008
Other Authors: Teixeira, Patrício, Crespo, Joel, Costa, Daniel, Esteves, João Sena
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: http://hdl.handle.net/1822/8420
Summary: This paper describes a slewing crane with electromagnet, operated by three three-phase induction motors but powered from a single-phase power supply. A switchboard drives the motors and the electromagnet. From its seat – mounted on the crane – an operator can make the crane arm slew left or right. The electromagnet can be moved back, forward, up or down and is capable of lifting 80kg loads. Crane slewing is limited to an 180º angle, for safety reasons. Pressing an emergency button switches off all command circuits. An 8051 microcontroller-based system determines the vertical position of the electromagnet, which cannot be switched off while being on a high position, not even if the emergency button is pressed. The crane is made of iron, has a height of 3m and a length of 2,5m. Such proportions make it very suitable for science fair events.
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spelling Foldable slewing craneSlewing caneElectromagnetSwitchboardContactorInverter8051 microcontrollerThis paper describes a slewing crane with electromagnet, operated by three three-phase induction motors but powered from a single-phase power supply. A switchboard drives the motors and the electromagnet. From its seat – mounted on the crane – an operator can make the crane arm slew left or right. The electromagnet can be moved back, forward, up or down and is capable of lifting 80kg loads. Crane slewing is limited to an 180º angle, for safety reasons. Pressing an emergency button switches off all command circuits. An 8051 microcontroller-based system determines the vertical position of the electromagnet, which cannot be switched off while being on a high position, not even if the emergency button is pressed. The crane is made of iron, has a height of 3m and a length of 2,5m. Such proportions make it very suitable for science fair events.Universidade do MinhoPedrosa, Delfim Duarte RoloTeixeira, PatrícioCrespo, JoelCosta, DanielEsteves, João Sena20082008-01-01T00:00:00Zbook partinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/1822/8420engCOSTA, M. F. [et al.], ed. lit. - “Selected Papers on Hands-on Science”. Braga : Associação Hands-on Science Network, 2008. ISBN 978-989-95336-2-2. p. 531-541.978-989-95336-2-2info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2024-05-11T05:36:36Zoai:repositorium.sdum.uminho.pt:1822/8420Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T15:24:00.004264Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Foldable slewing crane
title Foldable slewing crane
spellingShingle Foldable slewing crane
Pedrosa, Delfim Duarte Rolo
Slewing cane
Electromagnet
Switchboard
Contactor
Inverter
8051 microcontroller
title_short Foldable slewing crane
title_full Foldable slewing crane
title_fullStr Foldable slewing crane
title_full_unstemmed Foldable slewing crane
title_sort Foldable slewing crane
author Pedrosa, Delfim Duarte Rolo
author_facet Pedrosa, Delfim Duarte Rolo
Teixeira, Patrício
Crespo, Joel
Costa, Daniel
Esteves, João Sena
author_role author
author2 Teixeira, Patrício
Crespo, Joel
Costa, Daniel
Esteves, João Sena
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Pedrosa, Delfim Duarte Rolo
Teixeira, Patrício
Crespo, Joel
Costa, Daniel
Esteves, João Sena
dc.subject.por.fl_str_mv Slewing cane
Electromagnet
Switchboard
Contactor
Inverter
8051 microcontroller
topic Slewing cane
Electromagnet
Switchboard
Contactor
Inverter
8051 microcontroller
description This paper describes a slewing crane with electromagnet, operated by three three-phase induction motors but powered from a single-phase power supply. A switchboard drives the motors and the electromagnet. From its seat – mounted on the crane – an operator can make the crane arm slew left or right. The electromagnet can be moved back, forward, up or down and is capable of lifting 80kg loads. Crane slewing is limited to an 180º angle, for safety reasons. Pressing an emergency button switches off all command circuits. An 8051 microcontroller-based system determines the vertical position of the electromagnet, which cannot be switched off while being on a high position, not even if the emergency button is pressed. The crane is made of iron, has a height of 3m and a length of 2,5m. Such proportions make it very suitable for science fair events.
publishDate 2008
dc.date.none.fl_str_mv 2008
2008-01-01T00:00:00Z
dc.type.driver.fl_str_mv book part
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/8420
url http://hdl.handle.net/1822/8420
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv COSTA, M. F. [et al.], ed. lit. - “Selected Papers on Hands-on Science”. Braga : Associação Hands-on Science Network, 2008. ISBN 978-989-95336-2-2. p. 531-541.
978-989-95336-2-2
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
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