Small space docking mechanism based on profile-guided three-jaw locking action sequence

Abstract

The invention provides a small space docking mechanism based on a profile-guided three-claw locking action sequence, which belongs to the technical field of spacecraft on-orbit services. The mechanism includes a fixed table, a service active end, a target passive end and a transmission system. The edge profile is used to carry out a large-angle tolerance guiding and docking process. A single drive source is used to link the three claws to open and close to achieve locking and unlocking. Heat exchange and information transfer within axial tolerances are achieved using floating connections. The invention provides a design scheme for realizing locking under large butt tolerance for a small space docking mechanism, solves the problem of realizing butt locking without occupying the position of the electromechanical and thermal integrated transmission interface of the docking surface, and improves the design root cause. The utilization rate of space is improved, the design is simple and compact, the deviation correction ability is large, and the locking is reliable.

Description

technical field [0001] The invention relates to the technical field of on-orbit service of spacecraft, in particular to a small space docking mechanism based on profile-oriented three-claw locking action sequences. Background technique [0002] With the rapid development of aerospace technology, space activities are more frequent, the structure and composition of spacecraft are becoming more and more complex, and the performance and technical level are constantly improving. The docking mechanism is the key equipment for spacecraft rendezvous and an important guarantee for the successful completion of docking tasks. . [0003] The taper rod guide technology is relatively mature, but the docking tolerance depends on the influence factors such as the length of the taper rod, the diameter of the taper hole, and the angle of the taper hole. The docking tolerance increases with the increase of the space occupied by the butt joint, which is relatively large The physical space limi...

AI Technical Summary

Problems solved by technology

[0003] The cone-rod guide technology is relatively mature, but the docking tolerance depends on factors such as the length of the cone rod, the diameter of the taper hole, and the angle of the taper hole. The docking tolerance increases with the increase in the space occupied by the docking device, which is relatively large. physical space limits launch capabilities, and can only achieve one-way docking

The heterogeneous and isomorphic peripheral multi-piece guide valves and the design of the action mechanism are complex. In addition, most of the existing space docking mechanisms complete the insertion process of the electrical connector at the end of the guiding process, and finally complete the locking process, and the electrical connectors are fixed and distributed in the On the docking end face, such an arrangement puts forward strict requirements on the precision of the guide docking. If the precision is not high, it will easily lead to damage to the pins of the electrical connector and failure of insertion.

Images