The invention discloses an electrically-driven hybrid power transmission crane which comprises a frame, an engine, a clutch, a gearbox, a transmission shaft, a hydraulic pump, a hydraulic oil pipe, a central rotary body, a hydraulic valve group, a hydraulic motor, an axle and a get-off transfer case, and further comprises an ISG (Integrated Starter Generator) motor, a high-voltage electric wire and a high-voltage battery. The system has a pure electric driving mode, an oil-electricity hybrid driving mode and a plug-in driving mode, an ISG motor provides a power source for a hydraulic system through a high-voltage battery, electric energy is converted into hydraulic energy, a hydraulic executing mechanism is driven to achieve actions of an upper vehicle hydraulic system and a chassis hydraulic system, and when the electric quantity of the battery is insufficient, a lower vehicle engine transmission system drives the ISG motor to generate electricity. The high-voltage battery is charged, and a power source is continuously provided. The output rotating speed and torque of the motor are controlled in real time according to the hydraulic load requirement, the motor response is fast, the hydraulic executing mechanism is high in working efficiency and good in controllability, and the hydraulic system control precision is high.

    本发明公开了一种电驱混合动力传动起重机,包括车架、发动机、离合器、变速箱、传动轴、液压泵、液压油管、中心回转体、液压阀组、液压马达、车轴、下车分动箱,还包括ISG电机、高压电线以及高压电池,采用液压单发传动路线,具有纯电驱动模式、油电混合驱动模式和插电驱动模式,ISG电机通过高压电池提供液压系统的动力源,将电能转化为液压能,驱动液压执行机构实现上车、底盘液压系统动作,电池电量不足时,通过下车发动机传动系统驱动ISG电机发电,给高压电池充电,持续提供动力源。本发明根据液压负载需求实时控制电机输出转速和扭矩,电机响应快,液压执行机构工作效率高,操控性好,液压系统控制精度高。


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    Title :

    Electrically-driven hybrid power transmission crane


    Additional title:

    一种电驱混合动力传动起重机


    Contributors:
    WU GAOTENG (author) / CAO GUANGGUANG (author) / DONG YUGUANG (author) / GAO SONG (author) / WEI RONG (author)

    Publication date :

    2023-05-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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