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Dimensionamento da Talha
Para escolhermos a que melhor se adapta ao projeto, devemos levar em conta o tempo médio
diário de funcionamento e o estado de solicitação.
O tempo médio diário de funcionamento é dado pela fórmula abaixo:
Para o Projeto foi adotado:
Percurso médio do gancho: 6m
Ciclos por Hora: 5
Horas Trabalhadas por dia: 6
Velocidade de Elevação: 3m/min
O estado de solicitação é definido pela tabela abaixo. Com o tempo médio de funcionamento e
o estado de solicitação podemos entrar na tabela abaixo e definir o grupo requerido.
Estado de solicitação
1. LEVE
Mecanismos ou elementos sujeitos a solicitações
reduzidas e raras vezes a solicitações máximas.
2. MODERADO
Mecanismos ou elementos submetidos a
comumente a 1/3 da carga nominal e raramente a
carga nominal.
3. SEVERO
Mecanismos ou elementos submetidos
freqüentemente a cargas normais e comumente de
1/3 a 2/3 da carga nominal.
4. MUITO SEVERO
Mecanismos ou elementos submetidos comumente
a cargas máximas ou próxima as máximas.
Tempo médio diário calculado: 2,4h
Multiplicando pelo fator recomendado pela Koch do Brasil tem-se: 2,4*1,25=3ton

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Dimensionamento da talha

  • 1. Dimensionamento da Talha Para escolhermos a que melhor se adapta ao projeto, devemos levar em conta o tempo médio diário de funcionamento e o estado de solicitação. O tempo médio diário de funcionamento é dado pela fórmula abaixo: Para o Projeto foi adotado: Percurso médio do gancho: 6m Ciclos por Hora: 5 Horas Trabalhadas por dia: 6 Velocidade de Elevação: 3m/min O estado de solicitação é definido pela tabela abaixo. Com o tempo médio de funcionamento e o estado de solicitação podemos entrar na tabela abaixo e definir o grupo requerido. Estado de solicitação 1. LEVE Mecanismos ou elementos sujeitos a solicitações reduzidas e raras vezes a solicitações máximas. 2. MODERADO Mecanismos ou elementos submetidos a comumente a 1/3 da carga nominal e raramente a carga nominal. 3. SEVERO Mecanismos ou elementos submetidos freqüentemente a cargas normais e comumente de 1/3 a 2/3 da carga nominal.
  • 2. 4. MUITO SEVERO Mecanismos ou elementos submetidos comumente a cargas máximas ou próxima as máximas. Tempo médio diário calculado: 2,4h Multiplicando pelo fator recomendado pela Koch do Brasil tem-se: 2,4*1,25=3ton