Self-tracking zero-gravity unloading hanging device

A hanging device and zero-gravity technology, which is applied in the field of self-tracking zero-gravity unloading hanging device, can solve the problems of unable to hang the center of mass, complex antenna deployment form, and pressure, so as to eliminate the accuracy error of antenna deployment and simplify the antenna deployment work , Increase the effect of operational safety

Active Publication Date: 2021-01-29
XIAN INSTITUE OF SPACE RADIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complex deployment form of this type of antenna, it is necessary to accurately unload the center of mass of the reflector. Since the reflector is a parabolic reflector, its center of mass is in the direction of its mouth surface and is not in a physical position, so the center of mass cannot be suspended.
The unloading of the center of mass in the prior art requires installing a counterweight frame on the back of the reflector to configure and transfer the center of mass. If necessary, copper counterweights will be added to the back frame to transfer the center of mass of the back frame reflector assembly to the back of the reflector. Through the C-type Hook hanging unloading sling realizes zero-gravity unloading of the back frame reflector assembly, which leads to a large weight of the antenna unfolding part, which puts pressure on the antenna unloading device and personnel operation, has a great impact on the operation safety and test accuracy, and cannot be performed well. Simulation of in-orbit zero-gravity deployment motion

Method used

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  • Self-tracking zero-gravity unloading hanging device
  • Self-tracking zero-gravity unloading hanging device
  • Self-tracking zero-gravity unloading hanging device

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Experimental program
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Embodiment

[0070] Hereinafter, the present invention will be further described by taking the antenna reflector as the unloaded part.

[0071] As shown in Figure 1(a) and Figure 1(b), the self-tracking zero-gravity unloading hanging device provided by the present invention includes a center of mass rotation unit, a hanging beam, a balance beam, a balance weight, a weight screw assembly, a center of mass Moving ruler, circular arc slide rail, outer round block and rotating ring.

[0072] combine image 3 , the center-of-mass rotating unit is divided into a rotating part and a fixed part, the fixed part of the unit is rigidly connected with the suspension beam and the balance beam as a whole, and the rotating part rotates freely around the axis of the fixed part, that is, the center-of-mass transfer axis Z;

[0073] Combined with Figure 2(a) and Figure 2(b), the center of mass moving ruler is installed on the top of the hanging beam, and the arc slide rail is installed on the center of mas...

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Abstract

The invention relates to a self-tracking zero-gravity unloading hanging device which is used for realizing a self-tracking hanging unloading function of an unloaded piece, and realizes that the hanging unloading force of the hanging device automatically tracks and passes through a centroid in the three-dimensional movement process of the unloaded piece through the combined movement of a centroid rotating unit, a rotating hanging ring, an outer circular guide rail and an outer circular sliding trolley, and thus the zero-gravity unloading of the centroid of the unloaded piece is realized. The device is good in universality, easy to install and debug, light in weight and convenient to operate.

Description

technical field [0001] The invention relates to a self-tracking zero-gravity unloading and hanging device, which is used to realize the ground simulation deployment of a spaceborne antenna, and belongs to the technical field of antenna mechanisms. Background technique [0002] The unfolded form of the expandable overlapping antenna is as follows: Image 6 , Figure 7(a), Figure 7(b), Figure 7(c), Figure 7(d). Due to the complex deployment form of this type of antenna, it is necessary to accurately unload the center of mass of the reflector. Since the reflector is a parabolic reflector, its center of mass is in the direction of its mouth surface and is not in a physical position, so the center of mass cannot be suspended. The unloading of the center of mass in the prior art requires installing a counterweight frame on the back of the reflector to configure and transfer the center of mass. If necessary, copper counterweights will be added to the back frame to transfer the cente...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64G7/00
CPCB64G7/00
Inventor 薛兆璇陶啸侯健柯昌文丁辉兵赵颖万健
Owner XIAN INSTITUE OF SPACE RADIO TECH
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