The invention discloses a hydro-pneumatic suspension device for a trailer and a semitrailer. The device comprises a plate spring and a plate spring support hinged through a spring eye, the middle of the plate spring is fixed to an axle through a fixing device, and the end of the plate spring is hinged to the plate spring support through the spring eye. The top of the plate spring support is fixedly connected with a frame longitudinal beam, a lower support is welded to the side face of the axle, the lower support is connected with a hydro-pneumatic spring cylinder through a spherical hinge, thetop of the hydro-pneumatic spring cylinder is connected with an upper support through a spherical hinge, and the hydro-pneumatic spring cylinder is fixedly connected with the side face of the frame longitudinal beam so that the effective stroke can be utilized to the maximum extent and deviation can be reduced. The optimal working efficiency and the optimal service life can be achieved; a plate spring is prevented from being bent, the length of the plate spring is reduced by about 1/3, the effects of reducing weight and saving oil can be achieved to a certain extent, and the problem in trafficability caused by reduction of a ground clearance due to downward bending of the plate spring is solved.

    本发明公开了一种挂车、半挂车用油气悬架装置,一种挂车、半挂车用油气悬架装置,包括板簧和通过卷耳铰接的板簧支架,所述板簧中部通过固定装置固定在车轴上,且板簧端部通过卷耳铰接在板簧支架上,所述板簧支架顶部固定连接车架纵梁,所述车轴侧面焊接有下支架,所述下支架通过球铰连接油气弹簧缸,所述油气弹簧缸顶部通过球铰连接上支架,所述油气弹簧缸固定连接车架纵梁侧面,以最大限度的利用其有效行程和减少偏差,保证能够达到最佳的工作效率和使用寿命;板簧避免了折弯、长度减少约1/3,可一定程度上达到减重节油效果,并且避免了由于板簧向下弯曲引起的离地间隙变小而产生的通过性问题。


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    Title :

    Hydro-pneumatic suspension device for trailer and semitrailer


    Additional title:

    一种挂车、半挂车用油气悬架装置


    Contributors:

    Publication date :

    2021-02-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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