Cylindrical cable net reflection system driven by three telescoping rods

Abstract

The invention discloses a cylindrical cable net reflection system driven by three telescoping rods, aiming to solve the problems that a reflection system in the prior art is large in intensity and complex in structure. The cylindrical cable net reflection system includes a net surface cable (1), a fastening cable (4), a center column (6), an expandable outer circular ring unit (7), an upper platform (8), the three telescoping rods (10), a lower platform (12), and a support platform (13), a feed source (5) is arranged at the top of the center column, the center column and the outer circular ring are connected through upper and lower support cables (2), an adjusting cable (3) is connected between the net surface cable and the fastening cable to control the deformation of the reflection plane by changing the length, the upper ends of the three telescoping rods are connected with the upper platform through a spherical hinge connection structure (9), the lower end is connected with the lower platform through a revolute pair connection structure (11), and by changing the length of the three telescoping rods, the attitude control of the reflection device is realized. The reflection system is simple in structure, portable and flexible, accurate in attitude control, and can be used for the reflection or convergence of optical and electrical energies.

Description

technical field [0001] The invention belongs to the technical field of mechanical structures, in particular to a tracking and positioning ring-column type cable net reflection system, which can be used for reflection or convergence of electromagnetic energy or light energy. Background technique [0002] Large-scale reflector systems have not only been widely used in the field of electronic information technology, but also gradually expanded and applied in the field of solar energy application technology. A large reflector system generally includes a reflector, a support frame, and a control device for adjusting the pitch angle and azimuth angle. Among them, the surface accuracy of the reflecting surface is an important index to ensure the effective operation of the reflector. Due to the effect of gravity, wind and rain and other loads in the surface environment, in order to ensure the surface accuracy of the reflector, the reflector panels in the large reflector structure a...

AI Technical Summary

Problems solved by technology

The 500m-aperture spherical radio telescope to be built in my country in 2016 has adopted system-level innovative design ideas based on active reflector technology and flexible cable traction feed source technology, and its aperture surface density is still 6.6Kg / m 2 , not only high construction cost and material cost, but also unfavorable for wide-scale popularization and use

[0003] In space, large-scale deployable antennas with cable-net structures have been widely used. Since the gravity of the space environment is close to zero, this soft structure combined with rigidity and flexibility can form the desired surface accuracy and is ultra-light in weight. Density not exceeding 0.4Kg / m 2 , but this kind of cable net structure under the action of no gravity cannot be directly used on the ground

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