The present invention relates to an energy regeneration system of a forklift truck using a lift. More specifically, according to the present invention, the energy regeneration system of a forklift truck using a lift comprises: an electric motor; a hydraulic pump connected to the electric motor and an oil tank to be operated in one direction; a regeneration control valve connected to the hydraulic pump; a solenoid valve connected to the regeneration control valve, and opened or closed in accordance with current; a regenerative hydraulic motor connected to the solenoid valve in parallel; a regenerative generator connected to the regenerative hydraulic motor to generate electric energy; a lift cylinder connected to the regenerative generator and the solenoid valve; and a check valve formed between the regenerative hydraulic motor and the regeneration check valve to allow a fluid to flow only when the lift cylinder is lowered. Accordingly, the electric energy is generated from the hydraulic energy when the lift is lowered by self-weight.

    본 발명은 리프트를 이용한 지게차 에너지 회생 시스템에 관한 것이다. 더욱 상세하게는, 전기모터; 전기모터 및 오일탱크와 연결되어 전기모터에 따라 한 방향으로 구동되는 유압펌프; 유압펌프와 연결되는 회생 제어 밸브; 회생 제어 밸브와 연결되며 전류에 따라 열리거나 닫히는 솔레노이드 밸브; 솔레노이드 밸브와 병렬로 연결된 회생용 유압모터; 회생용 유압모터와 연결되어 전기에너지를 발생하는 회생용 발전기; 회생용 발전기 및 솔레노이드밸브와 연결된 리프트 실린더; 및 회생용 유압모터와 회생 제어 밸브 사이에 형성되어, 리프트 실린더가 하강할 때만 유체가 흐르게 하는 체크밸브; 를 포함하여, 자체중량에 의해 리프트 하강 시 유압 에너지로 전기 에너지를 생성하는 리프트를 이용한 지게차 에너지 회생 시스템에 관한 것이다.


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    Titel :

    Energy Regeneration System of Fork Lift Using Lift


    Weitere Titelangaben:

    리프트를 이용한 지게차 에너지 회생 시스템


    Beteiligte:
    HAN SUNG MIN (Autor:in) / AHN KYOUNG KWAN (Autor:in) / SHIN JUNG WOO (Autor:in) / HA TAE WOOK (Autor:in) / YOO CHUNG MOK (Autor:in) / JEONG EUN JIN (Autor:in) / KIM JI WOONG (Autor:in)

    Erscheinungsdatum :

    2018-12-14


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein



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