The invention discloses a plug-free pin shaft assembly which comprises a pin shaft sleeve, a first inclined groove and a second inclined groove, and the first inclined groove and the second inclined groove are opposite in the inclined direction and formed in the surface of the pin shaft sleeve. A pin shaft assembly is arranged in the pin shaft sleeve; the pin shaft assembly comprises an inner shaft and an outer shaft, a hole is formed in one end of the outer shaft, the inner shaft is of a stepped shaft structure, an inner stepped shaft section of the inner shaft is inserted from the hole formed in the end of the outer shaft and is pressed at the inner end of the hole through a compression spring, a handle perpendicular to the outer shaft is fixed to the outer shaft, and a positioning pin perpendicular to the inner stepped shaft section is fixed to the inner stepped shaft section of the inner shaft. A strip-shaped groove is formed in the outer shaft, the positioning pin penetrates out of the outer shaft through the strip-shaped groove, and when the inner shaft moves in the outer shaft, the positioning pin moves along the strip-shaped groove. The plugging-free pin shaft assembly can quickly realize locking and unlocking switching of the pin shaft, and after the plugging-free pin shaft assembly is used for a rotary structure of a supporting leg, the convenience of supporting leg state switching can be improved, the labor intensity is reduced, and the working efficiency is improved.

    本发明公开了一种免插拔销轴组件,包括:销轴套筒,所述销轴套筒表面开设倾斜方向相对的第一斜槽和第二斜槽;所述销轴套筒内设有销轴组件;所述销轴组件包括内轴和外轴,所述外轴一端开孔,所述内轴为阶梯轴结构,其内阶梯轴段由外轴的端部开孔处插入,并通过压簧压于孔内端,所述外轴上固定有与其垂直的手柄,所述内轴的内阶梯轴段固定有与其垂直的定位销,所述外轴上开设条形槽,所述定位销由条形槽穿出外轴,所述内轴在外轴内运动时,定位销沿条形槽移动。本发明的免插拔销轴组件可快速实现销轴锁定和解锁切换,用于支腿的旋转结构后,可提高支腿状态切换的便利性,降低劳动强度,提高作业效率。


    Access

    Download


    Export, share and cite



    Title :

    Plugging-free pin shaft assembly, rotary supporting leg and crane


    Additional title:

    一种免插拔销轴组件及旋转支腿、起重机


    Contributors:
    SUN WENTAO (author) / SHANG XIAOHENG (author) / CAI LI (author) / REN LUYAO (author) / CHEN LEI (author) / ZHANG JIAN (author) / LIU CHENGLONG (author) / CHAO XIAOQING (author)

    Publication date :

    2024-09-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



    Rotary pin plugging and pulling mechanism and automobile crane

    HAN KUI / HU DINGFENG / ZHOU BIN | European Patent Office | 2020

    Free access

    ROTARY SHAFT SUPPORTING STRUCTURE

    AKIMOTO KENSUKE / KITAHATA HIROTATSU / ONO TOMOHITO et al. | European Patent Office | 2017

    Free access


    Rotary assembly of tower crane and tower crane

    LI GUIFANG / ZHANG PENG / ZHU BIN | European Patent Office | 2020

    Free access

    Rotary assembly and tower crane

    LI HAO / FENG JUN / XIE PANHU | European Patent Office | 2022

    Free access