The invention relates to the technical field of air suspension wheelbase adjustment, and provides a semitrailer air suspension wheelbase adjusting mechanism which comprises a support, a bolt, a shaft sleeve and a wheelbase adjusting piece, the wheelbase adjusting piece is installed on the shaft sleeve, the bolt penetrates through the wheelbase adjusting piece and the shaft sleeve and is used for fastening the wheelbase adjusting piece on the shaft sleeve, and the wheelbase adjusting piece is an eccentric sleeve set. The eccentric sleeve set comprises an inner circle eccentric sleeve and an inner polygonal eccentric sleeve, the inner circle eccentric sleeve and the inner polygonal eccentric sleeve are installed on the two shaft sleeves respectively, eccentrically-arranged through holes are formed in the inner circle eccentric sleeve and the inner polygonal eccentric sleeve, an inner polygonal counterbore is formed in the inner polygonal eccentric sleeve and used for containing a nut of a bolt, and the inner polygonal counterbore is used for containing the nut of the bolt. And the tail end of the bolt is provided with threads, extends out of the inner circle eccentric sleeve and is screwed with a nut. By means of the technical scheme, the problems that in the prior art, impact force of starting or braking of a vehicle on the fastening bolt is concentrated, and the fastening bolt is seriously abraded and prone to breakage are solved.

    本发明涉及空气悬架轴距调整技术领域,提出了一种半挂车空气悬架轴距调整机构,包括支架、螺栓、轴套和轴距调整件,轴距调整件安装在轴套上,螺栓穿过轴距调整件和轴套,用于将轴距调整件紧固在轴套上,轴距调整件为偏心套组,偏心套组包括内圆偏心套和内多角偏心套,内圆偏心套和内多角偏心套分别安装在两个轴套上,内圆偏心套和内多角偏心套上均开设有偏心设置的通孔,内多角偏心套上开设有内多角沉头孔,内多角沉头孔用于容纳螺栓的螺帽,螺栓尾端具有螺纹且探出内圆偏心套,用于螺接螺母。通过上述技术方案,解决了现有技术中车辆起步或制动对紧固螺栓的冲击力集中,紧固螺栓磨损严重易断裂的问题。


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    Title :

    Air suspension wheelbase adjusting mechanism of semitrailer


    Additional title:

    一种半挂车空气悬架轴距调整机构


    Contributors:

    Publication date :

    2023-11-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge



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