The invention discloses a walking power unit of electric wheel type engineering machinery, which comprises a variable speed pump driving unit arranged at the upper part of a power box body, a walking driving unit positioned below the variable speed pump driving unit, and a variable speed gear shifting mechanism connected with the walking driving unit, and the variable speed gear shifting mechanism is connected with an output shaft; a front flange and a rear flange are arranged at the two ends of the output shaft; the transmission is characterized in that an intermediate shaft is arranged between the speed changing and gear shifting mechanism and the output shaft, and a high-speed gear driven gear meshed with a high-speed gear driving gear of the speed changing and gear shifting mechanism, a low-speed gear driven gear meshed with a low-speed gear driving gear of the speed changing and gear shifting mechanism and an output driving gear are installed on the intermediate shaft; and the output driving gear is meshed with an output driven gear mounted on the output shaft. The gear shifting device has the advantages that a high gear and a low gear are achieved, power gear shifting is not switched, and gear shifting can be achieved even if the rotating speed difference exists.

    本发明公开了一种电动轮式工程机械的行走动力单元,包括安装在动力箱体上部的变速泵驱动单元和位于变速泵驱动单元下方的行走驱动单元以及连接行走驱动单元的变速换挡机构,所述变速换挡机构连接输出轴,所述输出轴的两端布置有前法兰和后法兰;其特征在于:所述变速换挡机构和输出轴之间设有中间轴,所述中间轴上安装有与变速换挡机构的高速档主动齿轮啮合的高速档从动齿轮、与变速换挡机构的低速档主动齿轮啮合的低速挡从动齿轮以及输出主动齿轮,所述输出主动齿轮啮合安装在输出轴上的输出从动齿轮。本发明实现高低2个档,不切换动力换挡,即使存在转速差,也能够换挡的优点。


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    Title :

    Walking power unit of electric wheel type engineering machinery


    Additional title:

    一种电动轮式工程机械的行走动力单元


    Contributors:
    LI YINGYING (author) / LU FENGCHEN (author) / ZHANG WEIDONG (author) / CUI GUOMIN (author) / QIAO ZHENG (author) / CAO JIANRONG (author)

    Publication date :

    2022-12-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    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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