The invention discloses a single-double combined boom structure of a crane, which comprises a lower boom section, an upper boom section and a transition joint, the lower boom section is of a double-arm structure, the two sides of the lower boom section are symmetrical, and the upper boom section is of a single-arm structure; the arm support lower section is formed by sequentially connecting a root part, a root part section and a lower section standard section, and the arm support upper section is formed by sequentially connecting an upper section standard section and a head section; the upper arm support section and the lower arm support section are connected through a transition joint. The upper section of the single-double combined cantilever crane structure is the single arm, the lower section of the single-double combined cantilever crane structure is the double arms, the transition joint is arranged at the transition position of the single arm and the double arms, lateral stability is good, and meanwhile arrangement of a connecting beam is avoided. Compared with a single-arm boom, the lateral stability of the single-arm and double-arm boom structure is better, the self weight of the single-arm and double-arm boom structure is lighter, and the single-arm and double-arm boom structure has obvious advantages in the aspects of technical feasibility, safety, economical efficiency and the like; each rod of the transition joint adopts a circular tube section, and the transition joint is symmetrically arranged in structure and is compact in structure and reasonable in force transmission.

    本发明公开了一种起重机单双组合臂架结构,包括臂架下段、臂架上段和过渡节,臂架下段为双臂结构、两侧对称,其上段为单臂结构;所述臂架下段由根部、根部节和下段标准节依次连接构成,臂架上段由上段标准节和头部节依次连接构成;所述臂架上段和臂架下段通过过渡节连接。本发明采用单双组合臂架结构上段为单臂,下段为双臂,单臂和双臂的过渡处设置过渡节,侧向稳定性好,同时又避免了设置连梁。相对单臂臂架,单双臂架结构的侧向稳定性更好,相对双臂臂架,单双臂架结构的自重更轻,从技术可行性、安全性、经济性等方面均具有明显优势;过渡节的各杆均采用圆管截面,过渡节结构对称布置、结构紧凑、传力合理。


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    Title :

    Single-double combined boom structure of crane and mast crane thereof


    Additional title:

    一种起重机单双组合臂架结构及其桅杆起重机


    Contributors:
    LI PENGJU (author) / ZHU TIANEN (author) / LI XIAOXIAO (author) / LIU ZUJIAN (author) / ZHENG YUNLONG (author) / GAO QIANG (author) / AN YUZHEN (author) / LIU BIN (author)

    Publication date :

    2025-03-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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