Knot of tension of the cables forming the reflecting surface of the network of a deployable space antenna reflector

摘要

The utility model relates to cable tensioning devices in deployable large-sized reflectors of space mirrored antennas (ZKA), made on the basis of large-sized rod structures and metal knitted radio networks for electrical purposes. The technical result of the proposed utility model is to reduce the overall dimensions and simplify the design of the unit for simultaneously controlling the pulling force of the cables forming the reflective surface of a metal knitted radio network for deployable large-sized space antenna reflector, as well as to ensure and simplify the disclosure of the reflector surface. The technical result is provided due to the fact that the cables are pulled by the tension unit at the same time and evenly, and the tension force is adjustable. For this purpose, a cable tension unit has been developed that formally reflects the reflecting surface of the net-sheet of a deployable space antenna reflector, characterized by the use of cables as elements of load and displacement in regulation and geometric positioning systems of an adjustable object, the components of the tension unit are a drum with the possibility of rotation around its central axis, supports rotation of the drum in the hub of the reflector frame, as well as the possibility of winding cables onto the core rotational drum and at the same time the uniform tension of many cables located with circular (rotational) symmetry relative to the drum, on the core of which they are wound, while simultaneously regulating the tension force of the forming cables (the drum tension is regulated by the drum rotation relative to the main focal axis of the reflector and, accordingly, the net cable). The proposed utility model implements the uniform tension of many cables at once, located with circular (rotational) symmetry relative to the drum on which they are wound. In this case, each cable is attached to the core of the rotating drum located inside the stationary casing, then laid through the holes in the drum and the casing, then through the guide eyes located along the radial rod of the reflector, up to the point of attachment of the cable with the net-hollow. 1 s.p. f-ly, 4 ill.