Curso Completo a10vso

68
1 Date, Department, Filing References: These are entered by selecting <View>, <Header and Footer> and typing in the <Footer> f ield © All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. BOMBA A10VSO 2005 INSTRUTOR INSTRUTOR Eng. Danilo Oliveira Diogo Eng. Danilo Oliveira Diogo Email: [email protected] RESPONSAVEL PELA DIDÁTICA RESPONSAVEL PELA DIDÁTICA Eng. Fábio Fernandes Eng. Fábio Fernandes Email: [email protected] r

Transcript of Curso Completo a10vso

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BOMBA A10VSO 2005

INSTRUTORINSTRUTOR

Eng. Danilo Oliveira DiogoEng. Danilo Oliveira Diogo

Email: [email protected]

RESPONSAVEL PELA DIDÁTICARESPONSAVEL PELA DIDÁTICA

Eng. Fábio FernandesEng. Fábio Fernandes

Email: [email protected]

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Conteúdo Programático

Material didático

1) Fundamentos Básicos da Mecânica dos fluidos 1) Fundamentos Básicos da Mecânica dos fluidos

2) Conceitos de circuito hidráulico 2) Conceitos de circuito hidráulico

3) Principio de funcionamento 3) Principio de funcionamento

4) Instalação e Start-up 4) Instalação e Start-up

5) Analise Técnica do Catálogo5) Analise Técnica do Catálogo

6) Manutenção6) Manutenção

7) Sistemas de Filtragem7) Sistemas de Filtragem

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Fundamentos Básicos da Mecânica dos FluidosRelação Física

Força Pressão

Velocidade Vazão

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Fundamentos Básicos da Mecânica dos FluidosO paradoxo hidráulico

A1=A2=A3

F1 = F2 = F3

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Fundamentos Básicos da Mecânica dos FluidosLei de Pascal

O efeito de uma força sobre o liquido em repouso se propaga em todas as direções dentro deste liquido.

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Fundamentos Básicos da Mecânica dos FluidosTransmissão de forças (vasos comunicantes)

Líquido em repouso Pressões são iguais P1 = P2

O volume de líquido deslocado é igual V1 = V2

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Fundamentos Básicos da Mecânica dos Fluidos Principio de uma instalação hidráulica ( macaco hidráulico)

PEQUENA PEQUENA FORÇAFORÇA

GRANDE GRANDE FORÇAFORÇA

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Fundamentos Básicos da Mecânica dos FluidosLei do Fluxo

VazãoVazão

Q =Vol

t

Q = vazão ( lit/min ) A = área (cm2)

Vol = volume ( litros ) s = espaço (cm)

t = tempo ( min ) V = velocidade (cm/s)

VolumeVolume

Vol = A . s

Q =A .s

t

VelocidadeVelocidade

VazãoVazão

Q = A . V

Q1 = Q2A1

A2

v2

v1=

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Fundamentos Básicos da Mecânica dos FluidosPrincipio de Venturi – conservação da energia

Energia de movimentoEnergia de movimento

= constantev

2

2P

pe+g . h +

g = aceleração da gravidade

h = altura manometrica

P = pressão

v = velocidade

pe = peso especifico

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Fundamentos Básicos da Mecânica dos FluidosPerda de Pressão ou perda de carga

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Fundamentos Básicos da Mecânica dos FluidosFluxo laminar x Fluxo turbulento

REGIME LAMINAR

REGIME TURBULENTO

Numero de Reynolds (Re)Numero de Reynolds (Re)

Re = v . dh

n

v = velocidade

dh = diametro hidraulico

n = viscosidade cinematicaRe < 2300 = laminarRe < 2300 = laminar

Re > 2300 = turbulentoRe > 2300 = turbulento

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Circuitos abertos e Circuitos fechados

Circuito abertoCircuito abertoCircuito fechadoCircuito fechado

Normalmente aplicado na Normalmente aplicado na industriaindustria

Normalmente aplicado na Normalmente aplicado na mobilmobil

T T

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Circuitos abertos e Circuitos fechados

Circuito abertoCircuito aberto Circuito fechadoCircuito fechado

Normalmente aplicado na Normalmente aplicado na industriaindustria

Normalmente aplicado na Normalmente aplicado na mobilmobil

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Bombas HidráulicasVisão geral

EngrenagensEngrenagens

InternoInterno ExternoExterno

PistõesPistões

RadialRadial AxialAxial

PalhetasPalhetas

SimplesSimples

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Bombas HidráulicasBomba variável de pistões axiais - de prato inclinado

BOMBABOMBA

A10VSO A10VSO

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Bombas HidráulicasBomba variável de pistões axiais - de prato inclinado

Ajuste de pressãoAjuste de pressão MAXIMAMAXIMA

Ajuste de pressãoAjuste de pressão MINIMAMINIMA

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DRDR DFR e DFR1DFR e DFR1 DFLRDFLR

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Bombas HidráulicasCOMPENSADORES

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Bombas HidráulicasBomba variável de pistões axiais - de prato inclinado

Compensador de pressão (DR)Compensador de pressão (DR) Compensador de pressão e vazão (DFR)Compensador de pressão e vazão (DFR)

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Bombas HidráulicasCOMPENSADORES

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Bombas HidráulicasCOMPENSADORES

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Bombas HidráulicasBomba variável de pistões axiais - de prato inclinado

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Bombas HidráulicasBomba variável de pistões axiais - de prato inclinado

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Bombas HidráulicasCavitação - INSTALAÇÃO RECOMENDADA

Bolas de AR

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Bombas HidráulicasINSTALAÇÃO RECOMENDADA

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Bombas HidráulicasBomba variável de pistões axiais - de prato inclinado

Montagem Montagem

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Bombas HidráulicasDESGASTE

DESGASTE POR ESFORÇO AXIAL

( Cavitação )

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Bombas HidráulicasDESGASTE

DESGASTE POR CONTAMINAÇÂO

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Bombas HidráulicasDESGASTE

PRESENÇA DE LIMALHA

METALICA

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Bombas HidráulicasSPARE PARTS KITS

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Bombas HidráulicasRECOMENDAÇÕES

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Parte 14 : apresentação Filtragem

Por que devemos controlar o nível de Por que devemos controlar o nível de contaminação em fluidos hidráulicos ?contaminação em fluidos hidráulicos ?

Porque de Porque de 70 a 80%70 a 80% das avarias que das avarias que ocorrem nos equipamentos hidráulicos ocorrem nos equipamentos hidráulicos são provocadas por contaminantes no são provocadas por contaminantes no fluidofluido

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Parte 14 : apresentação Filtragem

Quais os prejuizos causados pela contaminação ?Quais os prejuizos causados pela contaminação ?

1.1. Perdas de produçãoPerdas de produção

2.2. Parada de máquinaParada de máquina

3.3. Custo de reposição de equipamentoCusto de reposição de equipamento

4.4. Custo com compras urgentesCusto com compras urgentes

5.5. Desgaste prematuro dos equipamentosDesgaste prematuro dos equipamentos

6.6. Custo com troca de fluidoCusto com troca de fluido

Vidas humanas

Vidas humanas

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Parte 14 : apresentação Filtragem

Quais os tipos de contaminantes ?Quais os tipos de contaminantes ?

Párticulas sólidasPárticulas sólidas

LíquidosLíquidosGasosoGasoso

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Parte 14 : apresentação Filtragem – Efeito dos contaminantes

Tipos de contaminação

Gasosa Líquida Sólida

Efeito

ÁguaArÓxido de ferroPartículas de ferrugem

FerroAçoLatão Bronze Alumínio

Tecidos durosFibrasDesgastes de vedaçõesPartículas de borracha

Partículas de pinturaProdutos de oxidação

vindas de mangueiras

do fluido hidráulico

extremamentedanoso

muitodanoso

poucodanoso

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Parte 14 : apresentação Filtragem – comparação de tamanhos de partículas

Filme lubrific.de armazenagem

Partículasfinas/grossas

15

15

75

Diâ

me

tro

em

µm Cabelo humano

30

Quais os tamanhos das partículas ?Quais os tamanhos das partículas ?

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Parte 14 : página 248Filtragem – Fontes de contaminação

1.1. HASTE DE CILINDROSHASTE DE CILINDROS

2.2. MONTAGEMMONTAGEM

3.3. CONTAMINAÇÃO INICIALCONTAMINAÇÃO INICIAL

4.4. CONTAMINAÇÃO INTERNACONTAMINAÇÃO INTERNA

5.5. DESGASTEDESGASTE

6.6. ÓLEOS NOVOSÓLEOS NOVOS

7.7. REPAROSREPAROS

Quais as fontes de contaminação ?Quais as fontes de contaminação ?

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Parte 14 : página 250Filtragem – Folgas dos componentes

Quais são as folgas ?Quais são as folgas ?

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Parte 14 : apresentaçãoFiltragem – Danos nas folgas internas

Quais são os danos ?Quais são os danos ?

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Parte 14 : apresentaçãoFiltragem – Reação em cadeia

Uma reação em cadeiaUma reação em cadeia

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Parte 14 : apresentaçãoFiltragem – Danos nas folgas internas

– Partícula estranha na pista do rolamento de esferas

– Contaminação como dano conseqüente– Cavaco de usinagem encravado

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Parte 14 : apresentaçãoFiltragem – Classificação

Como classificar os contaminantes ?Como classificar os contaminantes ?

NAS 1638NAS 1638

ISO 4406ISO 4406

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Parte 14 : apresentaçãoFiltragem – Norma NAS 1638

Quantidade máxima de contaminantes a cada Quantidade máxima de contaminantes a cada 100 ml100 ml de fluido de fluido

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Parte 14 : apresentaçãoFiltragem – Norma ISO 4406 - (1999)

Quantidade máxima de contaminantes a cada Quantidade máxima de contaminantes a cada

1 ml1 ml de fluido de fluido

ISO-Code Partikelanzahl / 100ml(nach ISO 4406) von bis

0 0,5 1

1 1 2

2 2 4

3 4 8

4 8 16

5 16 32

6 32 64

7 64 130

8 130 250

9 250 500

10 500 1000

11 1000 2000

12 2000 4000

13 4000 8000

14 8000 16000

15 16000 32000

16 32000 64000

17 64000 130000

18 130000 260000

19 260000 500000

20 500000 1000000

21 1000000 2000000

22 2000000 4000000

23 4000000 8000000

24 8000000 16000000

25 16000000 32000000

26 32000000 64000000

27 64000000 130000000

28 130000000 250000000

15 / 13 / 1015 / 13 / 10>4>4µµm >6m >6µµm >14m >14µµmm15 / 13 / 1015 / 13 / 10>4>4µµm >6m >6µµm >14m >14µµmm

Quant. de partículas / 1 mlde até(conf.

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Parte 14 : apresentaçãoFiltragem – Óleo NAS 7 ou ISO 18/16/13

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Parte 14 : apresentaçãoFiltragem – FOTOS DE CONTAMINANTES

Óleo novo, fornecido em minicontainers

• NAS 7 ISO 18/16 /13

Óleo novo, fornecido em caminhão tanque

• NAS 9 ISO 20/18/15

Óleo novo, fornecido em tambores

• NAS 12 ISO 23/21/18

• NAS 5 ISO 16/14/11• Necessária para modernos sistemas hidráulicos

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Parte 14 : apresentaçãoFiltragem – Classificação

Qual o nível adequado ?Qual o nível adequado ?

Classe de purezaClasse de pureza Grau de filtr. Grau de filtr. ComponentesComponenteshidrhidrááulicosulicos

atatéé absolutoabsoluto

NAS NAS 16381638

ISO DISISO DIS44064406

recomendadorecomendado

[[µµm]m]

Bombas de engrenagemBombas de engrenagem 99 21/18/1521/18/15 1010CilindrosCilindros 99 21/18/1521/18/15 1010VVáálvulas direcionaislvulas direcionais 99 21/18/1521/18/15 1010VVáálvulas lim. de pressãolvulas lim. de pressão 99 21/18/1521/18/15 1010VVáálvulas estranguladoraslvulas estranguladoras 99 21/18/1521/18/15 1010Bombas de pistõesBombas de pistões 99 21/18/1521/18/15 1010Bombas de palhetasBombas de palhetas 99 21/18/1521/18/15 1010VVáálvulas de pressãolvulas de pressão 66--88 19/16/1319/16/13 55VVáálvulas proporcionaislvulas proporcionais 66--88 19/16/1319/16/13 55ServovServováálvulaslvulas 44 16/13/1016/13/10 33ServocilindrosServocilindros 44 16/13/1016/13/10 33

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Parte 14 : apresentaçãoFiltragem – CONTAMINAÇÃO POR ÁGUA

Água livreÁgua livre

Água emulsionadaÁgua emulsionada

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Parte 14 : apresentaçãoFiltragem – CONTAMINAÇÃO POR ÁGUA

3% de H2O3% de H2O 0,03% de H2O0,03% de H2O

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Parte 14 : pagina 255Filtragem – FILTROS

SUPERFICIESUPERFICIE PROFUNDIDADEPROFUNDIDADE

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Parte 14 : pagina 256Filtragem – FILTRO de SUPERFICIE

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Parte 14 : pagina 256Filtragem – FILTRO de PROFUNDIDADE

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Parte 14 : pagina 256Filtragem – FILTRO de PROFUNDIDADE

Tubo de apoioTubo de apoio

Malha de apoioMalha de apoio

Fibra de apoioFibra de apoio

Fibra filtrante Fibra filtrante principalprincipal

Fibra de prFibra de préé--filtrafiltraççãoão

Fibra protetoraFibra protetora

Malha protetoraMalha protetora

Camisa de metal estiradoCamisa de metal estirado

Tampa de fechamentoTampa de fechamento

Tampa de fechamentoTampa de fechamento

Esteira filtranteEsteira filtrante(Mesh Pack)(Mesh Pack)

Tubo de apoioTubo de apoio

Malha de apoioMalha de apoio

Fibra de apoioFibra de apoio

Fibra filtrante Fibra filtrante principalprincipal

Fibra de prFibra de préé--filtrafiltraççãoão

Fibra protetoraFibra protetora

Malha protetoraMalha protetora

Camisa de metal estiradoCamisa de metal estirado

Tampa de fechamentoTampa de fechamento

Tampa de fechamentoTampa de fechamento

Esteira filtranteEsteira filtrante(Mesh Pack)(Mesh Pack)

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Parte 14 : pagina 260Filtragem – Razão Beta

nfluxo entrada x µm

nfluxo de saída x µmßX=

nfluxo entrada x µm

nfluxo de saída x µmßX=

Nfluxo entrada Nfluxo saída

elementofiltranteem teste

nfluxo entrada x µm

nfluxo de saída x µmßX=

nfluxo entrada x µm

nfluxo de saída x µmßX=

Nfluxo entrada = 500 Nfluxo saída = 20

elementofiltranteem teste

ßX = 25

nfluxo entrada x µm

nfluxo de saída x µmßX=

nfluxo entrada x µm

nfluxo de saída x µmßX=

Nfluxo entrada = 200 Nfluxo saída = 1

elementofiltranteem teste

ßX = 200

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Parte 14 : apresentaçãoFiltragem – LOCALIZAÇÃO DOS FILTROS

MM

M

COMANDO

M

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Parte 14 : apresentaçãoFiltragem – FILTRO DE SUCÇÃO

MM

M

COMANDO

M

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Parte 14 : apresentaçãoFiltragem – FILTRO DE PRESSÃO

MM

M

COMANDO

M

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Parte 14 : apresentaçãoFiltragem – FILTRO DE RETORNO

MM

M

COMANDO

M

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Parte 14 : apresentaçãoFiltragem – FILTRO DE AR

MM

M

COMANDO

M

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Parte 14 : apresentaçãoFiltragem – INDICADORES DE CONTAMINAÇÃO

VISUALVISUAL

ELÉTRICOELÉTRICO

ELÉTRICO COM LEDELÉTRICO COM LED

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FIM

OBRIGADO !!!!OBRIGADO !!!!