Assembled hinged oil cylinder seat and shield tunneling machine hinging device

An assembled hinged oil cylinder seat comprises a base, a plurality of limiting blocks and a plurality of fixing blocks. A spherical hinge groove is formed in the top surface of the base; the limitingblock is provided with an arc-shaped opening coaxial with the spherical hinge groove, the multiple arc-shaped openings can be spliced to form a complete circle, and the limiting block is arranged onthe top face of the base and used for limiting axial movement of the oil cylinder piston rod. The fixed block is used for limiting the axial movement of the limiting block; by means of split mountingtype connection, the connecting strength of the hinge device is guaranteed, and the dismounting and replacing efficiency is improved. 一种拼装式铰接油缸座，包括：一底座、多个限位块和多个固定块；所述底座顶面设有一个球形铰接槽；所述限位块设有一个与球形铰接槽同轴心的弧形口，所述多个弧形口可拼接形成一个完整圆，所述限位块设置在底座的顶面上，用于限制油缸活塞杆的轴向移动；所述固定块用于限制限位块的轴向移动；通过拼装式连接既保证其运用在铰接装置中连接的强度，又提高了拆卸及更换的效率。