The invention discloses an integral internal-locking fine-tuning eyelet bolt and an indication rod adjusting mechanism comprising the same, and belongs to the field of turnout switching equipment. The internally-locked fine-tuning swing bolt comprises a swing bolt body, a shaft sleeve, two thrust ball bearings and a fastening nut, a stop boss is arranged on the inner side of a bolt hole of the swing bolt body, the two thrust ball bearings are arranged on the two sides of the stop boss respectively, the shaft sleeve is a capped screw with an axial through hole, internal threads matched with external threads of an indication rod are arranged on the inner side of the axial through hole, and the fastening nut is arranged on the outer side of the shaft sleeve. The outer side of the far end of the capped screw is provided with an external thread matched with the fastening nut, and the fastening nut is used for fixing the two thrust ball bearings and the swing bolt to the outer side of the shaft sleeve, so that the integral internally-locked fine-adjustment swing bolt is formed. The swing bolt and the shaft sleeve are connected through the thrust ball bearing, then the swing bolt and the shaft sleeve form a whole through the fastening nut, overall adjustment of the integral internal locking fine adjustment swing bolt on the axial position of the indication rod is achieved through adjustment of the threads between the shaft sleeve and the indication rod, adjustment is convenient, and precision is high.

    本发明公开了一种整体式内锁微调活节螺栓及包括其的表示杆调整机构,属于道岔转换设备领域。该内锁微调活节螺栓包括活节螺栓、轴套、推力球轴承和紧固螺母,活节螺栓栓孔内侧设有止动凸台,推力球轴承包括两个,分别设置在止动凸台两侧,轴套采用带轴向通孔的带帽螺杆,轴向通孔内侧设有与表示杆外螺纹匹配的内螺纹,带帽螺杆的螺杆远端外侧设有与紧固螺母匹配的外螺纹,紧固螺母用于将两个推力球轴承和活节螺栓固定在轴套外侧,形成整体式内锁微调活节螺栓。本发明依靠推力球轴承连接活节螺栓和轴套,再通过紧固螺母使之形成整体,利用轴套与表示杆之间的螺纹调节实现该整体式内锁微调活节螺栓在表示杆轴向位置上的整体调节,调节方便,精度高。


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    Title :

    Integral internal-locking fine-tuning eyelet bolt and indication rod adjusting mechanism comprising integral internal-locking fine-tuning eyelet bolt


    Additional title:

    一种整体式内锁微调活节螺栓及包括其的表示杆调整机构


    Contributors:
    TANG JUNNUO (author) / XU JIANJUN (author) / ZHANG WEI (author) / ZHAO YONGGEN (author) / DING JIANGJIANG (author) / LI LIWEN (author) / YAN RUIKANG (author) / ZHAO YONGJUN (author) / TANG TIANYI (author) / ZHANG XIAODONG (author)

    Publication date :

    2023-03-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile / B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC



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