A gap-adjustable two-degree-of-freedom spherical hinge for a micro-vibration control platform comprises an upper ball socket and a lower ball socket which are oppositely arranged, a ball body located between the upper ball socket and the lower ball socket and a hollow bolt fixedly arranged on one side, the upper ball socket, the lower ball socket, the ball body and the hollow bolt are connected in a penetrating mode through a steel wire rope, and the two ends of the steel wire rope are connected with the upper ball socket and the lower ball socket respectively. According to the two-degree-of-freedom clearance-adjustable spherical hinge, the arc-shaped groove and the conical threading hole which are perpendicular to each other are designed in the ball body, the arc-shaped flange is designed on the ball socket, and the clearance elimination design of pre-tightening of the steel wire rope and the hollow bolt is adopted, so that the two-degree-of-freedom clearance-adjustable spherical hinge is achieved, and the fit clearance between the ball body and the ball socket can be adjusted by adjusting the screwing length of the hollow bolt; the mechanism has the advantages of compact structure, high rigidity, zero clearance, high motion precision, no redundant degree of freedom and the like.
一种面向微振动控制平台的可调间隙两自由度球铰,包括:相对设置的上、下球窝、位于其间的球体以及固定设置于一侧的空心螺栓,其中:上、下球窝、球体和空心螺栓通过钢丝绳贯穿连接,钢丝绳的两端分别与上、下球窝相连。本发明通过在球体上设计相互垂直的弧形凹槽以及锥形穿丝孔,在球窝上设计弧形凸缘,并采用钢丝绳和空心螺栓预紧的间隙消除设计,实现两自由度可调间隙球铰,可通过调节空心螺栓的旋合长度调节球体和球窝间的配合间隙,具有结构紧凑、刚度大、无间隙、运动精度高、不存在冗余自由度等优点。
Gap-adjustable two-degree-of-freedom spherical hinge for micro-vibration control platform
面向微振动控制平台的可调间隙两自由度球铰
2023-08-01
Patent
Elektronische Ressource
Chinesisch