Rotating assembly and intelligent eyeglass suspension arm

A rotating assembly comprises a first support, a second support, a rotating shaft and a limiting piece; the first support and the second support are rotationally connected through the rotating shaft; the limiting piece is arranged at the first end of the rotating shaft and is connected with the first support and the second support; and when the first support and the second support relatively rotate under the external force action, the limiting piece limits the rotating angle of the first support relative to the second support. 种转动组件，所述转动组件包括第支架、第二支架、转轴及限位件，所述第支架与第二支架通过转轴转动连接，所述限位件设置于所述转轴的第端且分别与所述第支架、第二支架连接，所述第支架及第二支架在外力作用下相对转动时，所述限位件限制所述第支架相对第二支架的转动角度。