The invention discloses a welding method of a bogie frame, the bogie frame and a railway vehicle, and belongs to the technical field of bogies. The surface, close to the weldment cover plate, of the weldment vertical plate is provided with an inclined face, the surface, close to the weldment vertical plate, of the weldment cover plate and the inclined face form a groove, the angle of the groove is 40-55 degrees, and the length of the truncated edge of the groove is 5-6 mm. Welding the outer side of the weldment vertical plate and the outer side of the weldment cover plate through a deep penetration welding process and a welding seam to obtain an outer welding seam located at the groove of the outer side; by adopting the design structure of the large truncated edge and the small groove, the machining amount of a single groove is reduced, the machining efficiency is improved, and the tool loss and the machining cost are reduced; according to the welding method, the main body welding seams in the bogie frame are welded by adopting one welding seam layer by layer, so that the welding filling amount is reduced, and the occurrence of interlayer defects is reduced.

    本发明公开了一种转向架构架的焊接方法、转向架构架及轨道车辆,属于转向架技术领域。焊件立板靠近焊件盖板的表面设有斜面,焊件盖板靠近焊件立板的表面和斜面形成坡口,坡口角度为40°‑55°,坡口钝边的长度为5‑6mm;通过深熔焊工艺并采用一道焊缝对焊件立板和焊件盖板的外侧进行焊接,得到位于外侧的坡口处的外焊缝;其采用大钝边、小坡口的设计结构,减少单件坡口的加工量,提高加工效率,减少刀具损耗和加工成本;本申请将转向架构架中的主体焊缝采用一层一道焊缝焊接完成,减少焊接填充量,减少层间缺陷的发生。


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    Titel :

    Welding method of bogie frame, bogie frame and rail vehicle


    Weitere Titelangaben:

    一种转向架构架的焊接方法、转向架构架及轨道车辆


    Beteiligte:
    HU WENHAO (Autor:in) / BI YUEKUAN (Autor:in) / DUAN ZEBIN (Autor:in) / LU XUXIN (Autor:in) / ZHOU LIJUN (Autor:in) / WANG GUANGYING (Autor:in)

    Erscheinungsdatum :

    2023-12-29


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B23K Löten , SOLDERING OR UNSOLDERING / B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES



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