Ring frame column type cable net reflective system driven by three telescopic rods

Abstract

The invention discloses a ring frame column type cable net reflection system driven by three telescopic rods. It includes a circular truss (1), a central pillar (3), a mesh cable (4), a traction cable (5), three telescopic rods (7) and a fixed platform (11); the central pillar is fixed by a support cable (10) At the center of the circular truss; a feed source (2) is installed on the top of the central pillar; a fastening cable (6) is installed between the mesh cable and the traction cable, adjusting the length of the fastening cable can control the deformation of the mesh cable, changing The shape of the reflective surface; the circular truss is connected to the three telescopic rods through the spherical pair connection structure (8); the three telescopic rods are connected to the fixed platform through the rotating pair connection structure (9); by changing the length of the three telescopic rods, the ring frame column shape The azimuth and elevation angles of the cable net reflection system reach the required attitude. The invention is simple in structure, light and flexible, can realize precise control of the azimuth and pitch of the reflection system, and can be used for reflection or convergence of light and electric energy.

Description

technical field [0001] The invention belongs to the technical field of mechanical drive, and in particular relates to a ring-frame column type cable net structure reflection system, which can be used for reflection or convergence of electromagnetic energy or light energy. Background technique [0002] Large-scale reflection systems are not only widely used in the fields of electronic information technology such as communication, navigation, detection, tracking, measurement and control, but also will be expanded and applied in the field of solar energy application technology, so as to realize the energy saving promised at the global climate conference. Provide strong technical support for emission reduction targets. [0003] The structure of a large reflection system generally includes a reflection surface, a support frame, and a control device for adjusting pitch angle and azimuth angle. Among them, the surface accuracy of the reflecting surface is an important index to ens...

AI Technical Summary

Problems solved by technology

Since the gravity of the space environment is close to zero, this soft structure of rigid-flexible combination can form the desired surface accuracy, and the weight is ultra-light. Usually, its caliber surface density does not exceed 0.4Kg / m 2 , which makes the construction cost and material cost very low, but this cable-net structure cannot be directly used on the ground

Due to the influence of external loads such as gravity and wind on the ground, the profile accuracy of the reflective surface will be greatly affected and cannot meet the requirements of use.

[0005] On the pitch angle and azimuth angle adjustment control device, that is, the tracker, the traditional two-axis serial tracker is commonly used at present. The two axes control the rotation of the azimuth and the rotation of the pitch respectively, and the tracking and positioning are realized through the change of the angle in turn. The structure of the tracker is relatively complicated, the flexibility is not high, the stability is poor, the processing cost is high, the installation efficiency is low, the maintenance cost is high, and the accumulated error is difficult to eliminate. A "blind cone" region that cannot be continuously tracked "over the top", so it is difficult for traditional pitch trackers to achieve accurate continuous tracking

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