The invention discloses a special rail wheel forged piece for a highway-railway dual-purpose vehicle, and a manufacturing method thereof. The rail wheel forged piece is composed of a wheel through hole forged piece, an upper annular groove is formed in the top face of the wheel through hole forged piece, a lower annular groove is formed in the bottom face of the wheel through hole forged piece, athrough hole is formed in the middle of the wheel through hole forged piece, and the two ends of the through hole are horn-mouth-shaped. The method comprises the following steps: feeding a material; performing medium-frequency heating; upsetting and punching by adopting a prefabricated die on a 1600T double-station servo oil press to prepare a prefabricated blank; forging into a pre-forged piece by adopting a pre-forging die on the 1600T double-station servo oil press; and using a die on the 4000 T electric screw press to precisely forge the pre-forged piece into the wheel through hole forgedpiece. The special rail wheel forged piece is simple in structure, easy to manufacture, simple in process, free of skin connection, free of a punching procedure of a punching machine, free of foldinghidden danger at the two ends of the through hole, capable of saving time and labor, capable of reducing labor intensity, capable of prolonging the service life of the die of the 4000 T electric screwpress and capable of reducing production cost of enterprises.

    本发明公开了公铁两用车专用的轨道车轮锻件及其制造方法,它由车轮通孔锻件构成,车轮通孔锻件的顶面设有上环槽,车轮通孔锻件的底面设有下环槽,车轮通孔锻件的中部设有通孔,通孔的两端都呈喇叭口状。它由以下步骤完成:下料;中频加热;采用1600T双工位伺服油压机上的预制模具墩粗冲孔制成预制坯;采用1600T双工位伺服油压机上的预锻模具锻造成预锻件;采用4000T电动螺旋压力机上的模具将预锻件精锻成车轮通孔锻件。本发明结构简单,容易制作,工艺简单,无连皮,无需冲床的冲孔工序,通孔的两端不存在折叠隐患,省时省力,降低了劳动强度,延长了4000T电动螺旋压力机的模具的使用寿命,降低了企业的生产成本。


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    Titel :

    Special rail wheel forged piece for highway-railway dual-purpose vehicle, and manufacturing method thereof


    Weitere Titelangaben:

    公铁两用车专用的轨道车轮锻件及其制造方法


    Beteiligte:
    REN QIHUA (Autor:in) / LI XINJUN (Autor:in) / JI BAOHUA (Autor:in) / XU SHANJUN (Autor:in) / LI YUNRUI (Autor:in)

    Erscheinungsdatum :

    2020-07-24


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge / B21J FORGING , Schmieden / B21K MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS , Herstellen von Schmiede- oder Presserzeugnissen aus Metall, z.B. Hufeisen, Nieten, Bolzen oder Rädern / B60F VEHICLES FOR USE BOTH ON RAIL AND ON ROAD , Fahrzeuge für den Verkehr sowohl auf Schienen als auch auf Straßen



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