Hidráulica leva potência para o novo túnel através dos Alpes

  • Brenner base Tunel
  • Os trens autopropelidos com soluções Danfoss são inteligentes, e oferecem segurança e confiabilidade

    Transmissão de potência hidráulica desempenha papel importante na construção do novo Túnel Ferroviário de Brenner, de 55 km, que possibilitará uma conexão mais rápida entre o norte e o sul da Europa a partir de 2020.

    A BIBUS HYDRAULIC Group, parceira da Danfoss, desenvolveu e instalou um sistema hidráulico para sua cliente Rowa, líder em sistemas e logística de túneis.

    Trens especializados - sobre rodas

    "Nossa empresa forneceu o sistema hidráulico para seis trens autopropelidos da Rowa. São veículos especializados para atividades como o transporte de componentes para dentro do túnel, evacuação de funcionários e combate a incêndio.", informou Gabriel Richter, CEO da BIBUS HYDRAULIC na Suíça. "São os primeiros trens de túnel sobre rodas, no lugar de trilhos".

    Sistema de máquinas pesadas

    Com carga máxima de 130 toneladas, os trens devem subir uma inclinação de 12% dentro do túnel e frear com eficiência. A velocidade máxima é de 25km/15mph por hora.

    A Danfoss desenvolveu um sistema de acionamento com bombas de pistão de alto desempenho e motor tipo bent axis H1. Há uma solução Danfoss em cada roda, possibilitando o direcionamento de todas elas. Centenas de válvulas eletro-hidráulicas PVG e de cartucho garantem controle preciso de vazão com load-sensing nos sistemas de acionamento, amortecimento e frenagem

    Sistema
     de freio personalizado

    Devido à carga pesada a bordo, o motor diesel de 460kW não consegue fornecer 100% de capacidade de frenagem. Por isso, a BIBUS desenvolveu um bloco de freio com válvulas PVG 120 e PVG 32 da Danfoss para suportar 30% da carga de frenagem.

    "A segurança funcional é uma questão de extrema importância. Por isso, disponibilizamos suporte para a Rowa com análise de risco e acomodação de riscos identificados no projeto de sistema hidráulico", informou Gabriel Richter.

    Controle inteligente

    A equipe de especialistas em eletrônica da BIBUS programou o software Danfoss PLUS+1® para controle inteligente e proativo de todo o sistema hidráulico.

    "O PLUS+1 equaliza a aceleração das plataformas de carga do trem, já que esta varia de acordo com o peso da carga de cada plataforma. Isso garante que as plataformas individuais subam e desçam inclinações na mesma velocidade, independentemente do peso.", afirmou Richter.

    Com o apoio da Danfoss, a BIBUS elaborou o projeto e entregou o sistema hidráulico em menos de três meses. Os trens da Rowa estão hoje em plena atividade, correspondendo a todas as expectativas de alto desempenho.


     

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