Small space docking mechanism based on molded surface guiding three-jaw locking action time sequence

Abstract

The invention provides a small space docking mechanism based on a molded surface guiding three-jaw locking action time sequence, and belongs to the technical field of spacecraft on-orbit service. The mechanism comprises a fixed table, a service active end, a target passive end and a transmission system, wherein the edge profile is used for conducting the large-angle tolerance guiding butt joint process, a single driving source is adopted for linkage of three jaws to be opened and closed, and locking and unlocking are achieved. Meanwhile, heat exchange and information transmission under axial tolerance are realized by using floating connection. The invention provides a design scheme for realizing locking under large butt joint tolerance for a small space butt joint mechanism, and solves the problem of realizing butt joint locking under the condition of not occupying the position of an electromechanical-thermal integrated transmission interface on a butt joint surface. The invention improves the space utilization rate from the root of design, and is simple and compact in design, high in deviation correction capability and reliable in locking.

Description

Technical field [0001] The present invention relates to spacecraft in the field of rail service, in particular, refer to a small spatial docking mechanism based on the timing of the type surface-directed trip. Background technique [0002] With the rapid development of space technology, space activities are more frequent, the structure of spacecraft, the complexity, performance, and technical levels are constantly improving, and the docking mechanism is a key equipment for spacecraft intersection, and it is also an important guarantee for the successful completion of docking tasks. . [0003] The cone type orientation technology is relatively mature, but the contact tolerance depends on the cone length, the tapered hole diameter, the angle angle angle, and the contact tolerance increases with the increase of the space occupied by the contact, so the relatively large Physical space limits the launch capability and only one-way docking can be implemented. The allogenic pending mult...

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.

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