The invention relates to the field of semitrailers, and particularly relates to a semitrailer suspension device. The semitrailer suspension device comprises a longitudinal beam and a front suspensionsupport mechanism, wherein the front suspension support mechanism is connected with the lower surface of the longitudinal beam; the front suspension support mechanism comprises an outer gear ring, a threaded rod, a first air spring, a front suspension support, an inner threaded sleeve, a toothed plate, a hydraulic cylinder and a mounting plate; a front suspension support is arranged below the longitudinal beam, the upper surface of the front suspension support is connected with the threaded rod through the first air spring, and the threaded rod extends into an inner threaded sleeve with an opening in the lower end and is in threaded connection with the inner threaded sleeve; the upper end of the inner threaded sleeve is rotationally connected with the longitudinal beam, the outer surface of the inner threaded sleeve is fixedly connected with the outer gear ring which rotates coaxially, the lower surface of the inner threaded sleeve is fixedly connected with the horizontally-arranged hydraulic cylinder through the mounting plate, and the output end of the hydraulic cylinder is fixedly connected with the toothed plate. The semitrailer suspension device provided by the invention has the advantages that the height of the semitrailer body can be adjusted, and the buffering effect is good.

    本发明涉及半挂车领域,具体的说是一种半挂车悬挂装置,包括纵梁;前悬挂支架机构,所述前悬挂支架机构与纵梁的下表面连接,且前悬挂支架机构包括外齿圈、螺纹杆、第一空气弹簧、前悬挂支架、内螺纹套筒、齿板、液压缸和安装板,所述纵梁的下方设有前悬挂支架,前悬挂支架的上表面通过第一空气弹簧连接有螺纹杆,螺纹杆延伸到下端开口的内螺纹套筒内并与内螺纹套筒螺纹连接;所述内螺纹套筒上端与纵梁转动连接,且内螺纹套筒的外表面固定连接有同轴转动的外齿圈,所述的下表面通过安装板固定连接有水平设置的液压缸,液压缸的输出端固定连接有齿板。本发明提供的半挂车悬挂装置具有可以调节车身高度且缓冲效果好的优点。


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    Titel :

    Semitrailer suspension device


    Weitere Titelangaben:

    一种半挂车悬挂装置


    Beteiligte:
    LI YANG (Autor:in) / SUN WEN (Autor:in)

    Erscheinungsdatum :

    2020-10-20


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge



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