Centro de Bachillerato Tecnológico Industrial y de Servicios #11
Física 2
Proyecto interdisciplinario: levadores !idr"ulicos
B electricidad
$uipo 2
Integrantes: %iego Fernando &ega Casta'eda (avier )le*andro +oera Ch"ve, Saulo -entería )yala (es.s )lonso +ópe, /lvare,
Pro0esora: a Ivone &idal 3uintanar
T4 !er5osillo sonora a 164674261
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Índice -esu5en de la investigación888888888888888888888881 investigación888888888888888888888881
Introducción8888888888888888888888 Introducción88888888888 8888888888888888888 888888882 2
Plantea5iento del pro9le5a8888888888 pro9le5a88888888888888888888 8888888888888 888
)ntecedentes888888888888888888888 )ntecedentes88888888888 8888888888888888888; 888888888;
I5portancia y *usti0icación del estudio888888888 e studio8888888888888888888 8888888888
<9*etivos =generales y especí0icos>88888888888888888888? especí0icos>88888888888888888888?
arco teórico =investigación 9i9liogr"0ica>88888888888888888@ 9i9liogr"0ica>88888888888888888@
%esarrollo de la investigación 88888888888888888888 8888888888888888888881A 81A 1 2 ; ?
sos y aplicacione aplicaciones888 s8888888 88888888 88888888 88888888 8888 1A 1A &isita &isita a la la e5presa888 e5presa8888888 88888888 88888888 88888888 8888826 826 ntrevista8 ntrevista88888 88888888 88888888 88888888 88888888 8888888 8882 2 Tríptico Tríptico8888 88888888 88888888 88888888 88888888 88888888 88888 827 27 aterial aterial di0erente di0erente al poer poer point888 point8888888 88888888 8888888 888 6 6 Prototipo88 Prototipo888888 88888888 88888888 88888888 88888888 8888888 8881 1
Conclusiones888888888888888888888 Conclusiones88888888888 88888888888888888? 8888888?
-e0erencias 9i9liogr"0icas888888888 9i9liogr"0icas88888888888888888888 88888888888888@ 888@
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Resumen de la investigación n elev elevado adorr hidr" hidr"ul ulic ico o es un sist siste5 e5a a dise dise'a 'ado do para para 5overs 5overse e verti vertica cal5 l5en ente te aprovechando las propiedades 5ec"nicas de los lí$uidos !ay varios tipos de elevadores hidr"ulicos: +os gatos de 9otellaE levadores de autosE +as 9o59as de 5ano y ontacargas n elevador elevador hidr"ulico hidr"ulico tiene los siguientes co5ponentes: co5ponentes: otorE otorE Bo59aE Blo$ue de v"lvulasE %epósito de aceiteE Pistón hidr"ulico y Cilindro Su inventor 0ue -ichard %udgeon $ue 0ue un 5a$uinista del siglo I $ue inventó el elevador hidr"ulico a 5ediados del siglo Su invención ree5pla,o al gato de rosca $ue era el elevador est"ndar utili,ado durante Gste período de tie5po
El principio de Pascal l prin princi cipio pio de Pasc Pascal al es la eHpli eHplica caci ción ón pri5ar pri5aria ia al 0unc 0uncio iona na5i 5ient ento o de los los elevadores hidr"ulicos ste principio esta9lece $ue la presión contenida en un recipiente es igual en todos los puntos
Su funcionamiento Para su9ir se 9o59ea el 0luido a un grupo de v"lvulas donde es enviado hacia el pistón Se a9re una de las v"lvulas y el 0luido pasa y regresa al depósito centralE pero cuando la v"lvula se cierra el 0luido va hacia el cilindro )l acu5ularse el 0luido en el cilindroE la presión e5pu*a el pistón hacia arri9a elevando la ca9ina del ascensor Para 9a*ar la ca9inaE el siste5a de control del ascensor envía una se'al a la v"lvula Cuando la v"lvula se a9reE el 0luido $ue esta9a en el cilindro 0luye hacia el depósito de la central
Usos y aplicaciones )ntes era usado co5o un ascensor de ca9ina pero lo re5pla,o el elevador elGctricoE es por esto $ue ahora se usa en los elevadores de auto en los 5ontacargas los gatos de 9otellaE en 0in se usan 5"s para el sector industrial ya $ue son un poco 5"s de uso rudo
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Introducción sta es una investigación acerca de los elevadores hidr"ulicos para la 5ateria de 0ísica 2 la cual 0ue hecha por el e$uipo 2 del B electricidad turno 5atutino sta 0ue hecha con el 0in de eHplicar a 0ondo acerca de este tipo de elevador y co5prender 5e*or su 0unciona5ientoE así co5o conocer cada una de sus partes y el 0unciona5iento 0unciona5iento de cada una de estas y sus usos y aplicaciones aplicaciones en el día a día en las e5presasE negocios o la industria $ue es donde 5"s se utili,an estos elevadores ya $ue pueden pesos 5uy grandes Co5o ya se sa9e los elevadores son 5"$uinas echas para elevar cual$uier cosas en especial personas en rascacielosE pero el pro9le5a es $ue son 5uy grandesE y a e5presas o negocios negocios chicos no les convienen convienen estos tipos de elevadores elevadores ya $ue son caros y se gasta 5ucha energía elGctrica ade5"s de no ser para uso rudo s por esto $ue surgen los elevadores hidr"ulicos para satis0acer esas necesidadesE co5o por e*e5plo el 5ontacargas y el elevador de autos para la 5ec"nica auto5otri, +os elevadores hidr"ulicos hidr"ulicos son 5"$uinas 5"$uinas $ue tra9a*an tra9a*an por 0uer,a de los lí$uidosE lí$uidosE claro $ue ta59iGn con 9o59as y 5otoresE pero su principal ele5ento son los lí$uidos sta investigación investigación consta de 7 puntos i5portantes i5portantes los cuales 0ueron hechos para la 5e*o 5e*orr co5p co5pren rensi sión ón acerc acerca a del del te5a te5aEE esto estoss 7 punt puntos os son son los los sigu siguie ient ntes: es: plantea5iento del pro9le5aE antecedentesE i5portancia y *usti0icación del estudioE o9*etivosE 5arco teórico conclusiones re0erencias 9i9liogr"0icas y glosarioE co5o ya se di*o la investigación consta de estos 7 puntos para la 5e*or co5prensión posi9le $ue pueda tener el lector y se lo 5as claro posi9le Todo el e$uipo se es0or,ó para $ue esta investigación sea posi9leE así $ue espera5os $ue aprenda algo acerca del te5a o a5pliG su conoci5ientoE la cual es la 0inalidad de este proyecto
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Planteamiento del problema
¿Cómo es que funciona un elevador idr!ulico" sta pregunta nos las hici5os cada uno de los ; integrantesE ya $ue ninguno de los cuatro avia5os tocado este te5a en alg.n punto de la vidaE 0ue por esto $ue 0ue lo pri5ero $ue nos pusi5os a investigarE pero por$ue no lo pri5ero nos pusi5os a investigar 0ue $ue es un elevador hidr"ulicoJ uy sencilloE al sa9er $ue es un elevador e hidr"ulicaE supi5os $ue este se eleva9a y 0unciona9a a travGs de lí$uidos
¿#u$ tiene que ver un elevador idr!ulico con la f%sica" sta pregunta ta59iGn nos las hici5os todo el e$uipoE ya $ue la 5ateria es 0ísica y creí5os $ue no tenía nada $ue verE pero nos e$uivoca5os ya $ue 0ue la segunda cosa $ue se investigóE y nos di5os cuenta $ue tiene $ue ver 5ucho ya $ue todos los elevadores hidr"ulicos 0uncionan con el principio de pascal en el cual eHiste una 0uer,a y una presiónE ya $ue a59os conceptos son de 0ísica
sta stass dos pregun pregunta tass 0uer 0ueron on nues nuestr tro o plan plante tea5 a5ie ient nto o para para e5pe e5pe,ar ,ar nuest nuestra ra investigación ya $ue se nos )sia curioso su 0unciona5iento y su relación con la 0ísica
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&ntecedentes
+a hidr"ulica se viene estudiando desde hace 5uchoE al igual $ue los elevadores elevadores hidr"ulicos en esta investigación se 5enciona a -ichard dudgeon $uien 0ue el pri5ero en utili,ar la hidr"ulica para utili,arla para elevar cosasE es por esto $ue se le ad*udica $ue 0ue el $ue invento los elevadores hidr"ulicos
Pero a di0erencia de esos estudiosE nuestra investigación no pretende revolucionar los elevadores hidr"ulicosE solo se pretende hacer conoci5iento acerca del te5aE ya $ue no se tienen los conoci5ientos necesarios de la hidr"ulica y 5ecatrónica co5o para reali,ar un invento $ue revolucione la hidr"ulicaE co5o ya lo hi,o el se'or -ichard dudgeon a 5ediados del siglo I
-ichard dudgeon invento el gato hidr"ulico el cual se sigue utili,ando hasta la 0echa en los auto5óvilesE así $ue espera5os lo 5is5o de nuestra investigación $ue se utilice utilice para generaciones generaciones 0uturas 0uturas $ue $uieran tener conoci5ientos conoci5ientos acerca del te5a de elevadores hidr"ulicos
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Importancia y 'ustificación del estudio
+a i5portancia de esta investigación es la de conocer la relación de los elevadores hidr"ulicos con la 0ísica para su aplicación en distintos ca5posE aplicando el principio de pascal el cual se ver" en esta investigaciónE de esta 5anera se *usti0ica su s u estudioE de tal 5anera $ue a continuación vere5os su i5portancia en el ca5po la9oral stos elevadores son 5uy i5portantes para la industria y los pe$ue'os negocio ya $ue es donde 5"s se utili,anE pero Por $uGJ sto es por$ue los elevadores hidr"ulicos a di0erencia de los elevadores elGctricos son para uso 5"s rudo *e5plos *e5plos de ello es en las 9odegas donde se usa el 5ontacargas 5ontacargas co5o elevador de9ido a su pe$ue'o ta5a'o y su 0"cil 5anio9ra 5iento en pe$ue'os espacios es considerado elevador ya $ue se pueden elevar cosas con el
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(b'etivos n esta investigación hay varios o9*etivos $ue se $uieren lograr y son por lo cual reali,a5os esta investigación +os o9*etivos a lograr son los siguientes:
Denerales: Kconocer $ue es un elevador hidr"ulico K conocer los tipos de elevadores hidr"ulicos Kidenti0icar las partes de un elevador hidr"ulico
specí0icos: K)prender có5o 0unciona un elevador hidr"ulico K)prender có5o 0unciona cada una de las partes de un elevador hidr"ulico K Co5prender el principio de pascal KConocer sus aplicaciones y usos
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Elevadores idr!ulicos )desarrollo del tema* Para Para co5p co5pren render der 5e*o 5e*orr $ue $ue son son los los eleva elevador dores es hidr" hidr"ul ulic icos os e5pe e5pe,ar ,are5 e5os os dividiendo los conceptos $ue son: elevador e hidr"ulica
+idr!ulica s la ciencia $ue estudia el co5porta5iento de los 0luidos en 0unción de sus propiedades especí0icas s decirE estudia las propiedades 5ec"nicas de los lí$uidos dependiendo de las 0uer,as a $ue pueden ser so5etidos
Elevador s un siste5a de transporte transporte vertical vertical dise'ado para 5over personas u o9*etos entre di0erentes di0erentes niveles Puede ser utili,ado utili,ado para ascender o descender descender entre los niveles de un edi0icio o en una construcción su9terr"nea st" 0or5ado por partes 5ec"nicasE 5ec"nicasE elGctricas y electrónicas electrónicas $ue 0uncionan 0uncionan con*unta5ente con*unta5ente para lograr un 5edio seguro de 5ovilidad
Elevador idr!ulico Por Por tant tanto o un elev elevad ador or hidr hidr"u "ulilico co es un sist siste5 e5a a dise dise'a 'ado do para para 5ove 5overs rse e vertical5ente aprovechando las propiedades 5ec"nicas de los lí$uidos
,ec!nica de -luidos. Parte de la Física $ue se ocupa de la acción de los 0luidos en reposo o en 5ovi5ientoE así co5o de las aplicaciones y 5ecanis5os de ingeniería $ue utili,an
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+a 5ec"nica de 0luidos puede su9dividirse en dos ca5pos principales:
+idrost!tica/ $ue se ocupa de 0luidos en reposo
0in!mica de fluidos: $ue trata de 0luidos en 5ovi5iento l tGr5ino de hidrodin"5ica se aplica al 0lu*o de lí$uidos o al 0lu*o de los gases a 9a*a 9a*a velo veloci cida dadE dE en el $ue $ue puede puede consi consider derar arse se $ue $ue el gas gas es esenc esencia ial5 l5en ente te inco inco5p 5pre resi si9l 9le e +a aerod erodin in"5 "5ic icaE aE o din" din"5 5ica ica de gase gasesE sE se ocup ocupa a del del co5porta5iento de los gases cuando los ca59ios de velocidad y presión son su0i su0ici cien ente te5e 5ent nte e gran grande dess para para $ue $ue sea sea nece necesa sari rio o incl inclui uirr los los e0ec e0ecto toss de co5presi9ilidad ntre las aplicaciones de la 5ec"nica de 0luidos est"n la propulsión a chorroE las tur9inasE los co5presores y las 9o59as =)ire co5pri5ido> +a hidr"ulica estudia la utili,ación en ingeniería de la presión del agua o del aceite
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1ipos de elevadores idr!ulicos/ !ay varios tipos de elevadores hidr"ulicos $ue son utili,ados para di0erentes 0ines
K2os gatos de botella
3Elevadores de autos
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2as bombas de mano.
,ontacargas
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K protección del 5otor contra los picos de intensidadE consiguiendo una vida 5ayor de la instalación K reducción de la potencia re$uerida para la instalación
4omba +as 9o59as utili,adas en los grupos i5pulsores de los ascensores hidr"ulicos son de engrana*esE de pistones rotativos o de husillos 5.ltiples +as 5"s silenciosas y las 5"s utili,adas son las 9o59as de husillos n generalE los grupos i5pulsores est"n 0or5ados por el 5otor elGctrico y la 9o59aE acoplados directa5enteE y a veces 0or5ando un solo cuerpo +a 9o59a est" pr"ctica5ente sie5pre su5ergida en el depósito del aceiteE y el 5otor con su e*e vertical so9re la tapa del depósito
4loque de v!lvulas l 9lo$ue de v"lvulasE $ue general5ente se instala so9re el depósito de aceite del grupo i5pulsorE est" co5puesto por las v"lvulas de 5anio9ra del circuito hidr"ulico del ascenso ascensor r )lgun )lgunas as son de acciona acciona5ie 5iento nto electr electro5a o5agnG gnGtic tico o a9riGn a9riGndose dose o cerr"ndoseE co5andadas por la 5anio9ra elGctrica del ascensor
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Histen dos tipos de acciona5ientos del pistón hidr"ulico: K acción indirecta: la ca9ina es i5pulsada por el pistón por 5edio de ca9les
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Tiro lateral Tiro directo central: el pistón est" enterrado y e5pu*a al 9astidor de la ca9ina desde a9a*o
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n esta i5agen se aprecian los co5ponentes principales $ue utili,a un elevador hidr"ulico para su 9uen 0unciona5iento
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Ricard 0udgeon -ich -ichar ard d %udg %udgeon eon 0ue 0ue un 5a$u 5a$uin inis ista ta del del sigl siglo o I I $ue inve invent ntó ó el eleva elevado dor r hidr"ulico hidr"ulico a 5ediados del siglo Su invención ree5pla,o ree5pla,o al gato de rosca $ue era el elevador est"ndar utili,ado durante Gste período de tie5po
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El principio de Pascal
l prin princi cipio pio de Pasc Pascal al es la eHpli eHplica caci ción ón pri5ar pri5aria ia al 0unc 0uncio iona na5i 5ient ento o de los los elevadores hidr"ulicos ste principio esta9lece $ue la presión contenida en un recipiente es igual en todos los puntos +os gatos hidr"ulicos utili,an este principio co59inando dos cilindros =uno pe$ue'o y otro grande> para incre5entar la presión para poder levantar o9*etos de 5ayor peso
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puede volver al depósito de la central a travGs de la 9o59aE y la v"lvula sigue cerrada> l v"stago se apoya so9re el 0luido y la ca9ina se $ueda allí donde est"
Para ba'ar Para 9a*ar la ca9inaE el siste5a de control del ascensor envía una se'al a la v"lvula Cuando la v"lvula se a9reE el 0luido $ue esta9a en el cilindro 0luye hacia el depósito de la central Dracias Dracias a la 0uer,a de gravedadE gravedadE el peso de la ca9ina =y la cargaE en caso de $ue la haya> e5pu*a el cilindro hacia a9a*o y conduce el 0luido al depósitoE haciendo
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0esarrollo de la investigación
Usos y aplicaciones +os elevadores hidr"ulicos se usan general5ente para elevar o9*etos con un 0in
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1omas 1omas idr!ulicas o elevadores de autos
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6ISI1& & 2& E,PRES&
n esta ocasión se visitó un taller en el cual utili,an un elevador hidr"ulico para
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