The invention belongs to the field of engineering machinery connecting pieces, and particularly relates to a pin shaft structure and an installation method of a steering oil cylinder of an articulated dump truck. The support comprises a bottom plate and two lug plates vertically arranged on the bottom plate, the two lug plates are both provided with through mounting holes, the mounting holes of the two lug plates are located in the same axial center line, and bushings are mounted in the mounting holes of the lug plates; the pin shaft assembly comprises a conical shaft, a conical sleeve and a pressing plate; the middle of the conical shaft is a cylindrical surface, the two ends of the conical shaft are conical surfaces with the diameters gradually decreased outwards in the axial direction, a through bolt hole is formed in the axis, and the outer diameter of the middle of the conical shaft is smaller than the inner diameter of the bush; the outer surface of the taper sleeve is a cylindrical surface, the inner surface of the taper sleeve is a conical surface, and the conical surface of the taper sleeve and the conical surface of the taper shaft have the same taper. The outer diameter of the middle part of the conical shaft is smaller than the inner diameter of the bushing, so that the conical shaft can easily penetrate into or out of the bushing, and the conical shaft, the conical sleeve and the bushing can be mutually compressed by fastening the conical shaft, the conical sleeve and the bushing through a bolt to realize interference installation.

    本发明属于工程机械连接件领域,具体涉及一种销轴结构及铰接式自卸车的转向油缸的安装方法,销轴结构包括支座和销轴组件;支座包括底板以及垂直设置在底板上的两块耳板,两块所述耳板均设有贯穿的安装孔,且两块所述耳板的安装孔处于同一轴向中心线上,耳板的安装孔内安装有衬套;销轴组件包括锥轴、锥套和压板;锥轴的中部为圆柱面,两端为沿着轴向朝外直径逐渐变小的锥面,轴心设有贯穿的螺栓孔,锥轴中部的外径小于衬套的内径;锥套的外表面为圆柱面,内表面为锥面,锥套的锥面与锥轴的锥面所采用的锥度相同。锥轴中部的外径小于衬套的内径,能够轻易将锥轴穿入或穿出衬套,通过螺栓紧固,便能使锥轴、锥套、衬套之间相互压紧,实现过盈安装。


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    Title :

    Pin shaft structure and installation method of steering oil cylinder of hinged dump truck


    Additional title:

    销轴结构及铰接式自卸车的转向油缸的安装方法


    Contributors:
    WANG ZHOU (author) / QIN HONGYI (author) / ZHANG JIESHAN (author) / QIAO KUIPU (author) / TANG ZHIMING (author)

    Publication date :

    2022-11-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16C SHAFTS , Wellen / B62D MOTOR VEHICLES , Motorfahrzeuge



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