The slewing bearing comprises an inner ring, balls and an outer ring, the inner ring is sleeved with the outer ring, the balls are arranged between the inner ring and the outer ring, grooves for containing the balls are formed in the outer wall of the inner ring and the inner wall of the outer ring, an outer ring is arranged on the outer ring, and a plurality of steel balls are arranged between the outer ring and the outer ring. The steel balls are embedded in the inner wall of the outer ring and movably connected with the outer ring, and the outer ring is movably connected with the outer ring through the steel balls; a plurality of first oil injection channels are formed in the outer ring in the thickness direction of the outer ring, correspond to the grooves in the outer ring and communicate with the grooves; a plurality of second oil injection channels are formed in the outer ring, each second oil injection channel is of an L-shaped structure, one end of each second oil injection channel is arranged on the upper surface of the outer ring, and the other end of each second oil injection channel is arranged on the inner wall of the outer ring and communicates with the position, where the steel balls are embedded, of the outer ring; the machined bearing is good in performance, good in lubricating property and not prone to damage, and the service life is prolonged.

    本发明公开了一种起重机用回转轴承,包括内圈、滚珠和外圈,外圈套设在内圈外,内圈与外圈之间设置有数个滚珠,内圈的外壁和外圈的内壁上均设有放置滚珠的凹槽,外圈上设有外环,外环与外圈之间设有数个钢球,钢球嵌入设置在外环的内壁上,并与外环活动连接,外圈与外环通过钢球活动连接;外圈上沿其厚度方向设有多个第一注油通道,第一注油通道对应于外圈上的凹槽设置,第一注油通道与凹槽相联通;外环上设有多个第二注油通道,第二注油通道为L型结构,第二注油通道的一端设置于外环的上表面,另一端设置于外环内壁上,并与外环上嵌入钢球的位置相连通;加工出来的轴承性能佳,轴承润滑性好,不容易损坏,延长使用寿命。


    Access

    Download


    Export, share and cite



    Title :

    Slewing bearing for crane and machining process thereof


    Additional title:

    一种起重机用回转轴承及其加工工艺


    Contributors:
    HE YUE (author)

    Publication date :

    2023-11-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES / B23P Sonstige Metallbearbeitung , OTHER WORKING OF METAL / F16C SHAFTS , Wellen



    Crane slewing bearing replacing device

    LIU LEI / QIANG SHAOHUA / REN YUGANG et al. | European Patent Office | 2023

    Free access

    Tower crane slewing bearing and tower crane

    ZHOU BING / WEN CHAOHUI / LI XIANGMIN et al. | European Patent Office | 2023

    Free access

    Slewing bearing fixing device for crane

    LIU LEI / REN YUGANG / QIANG SHAOHUA et al. | European Patent Office | 2023

    Free access

    Slewing bearing structure applied to crane

    SHU HAO / LIU HANLUN / ZHAO RUIXUE et al. | European Patent Office | 2024

    Free access

    SLEWING CRANE

    NISHIMOTO MASASHI / AKAMATSU MIKIO | European Patent Office | 2016

    Free access