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Planetary-gear-train-type folding and unfolding device and folding and unfolding method thereof

A planetary gear train and planetary gear technology, applied in the aerospace field, can solve the problems of lack of locking device, low power supply, low transmission efficiency, etc., and achieve the effects of small size and weight, improved power generation efficiency, and high transmission efficiency.

Active Publication Date: 2017-10-17
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the solar panels used in this type of solar panel deployment mechanism are mainly rigid structures, and there are problems such as low power supply per unit mass.
In addition, most spacecraft folding mechanisms have only one stage of deployment, lack of locking devices, small folding ratio, and low transmission efficiency

Method used

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  • Planetary-gear-train-type folding and unfolding device and folding and unfolding method thereof
  • Planetary-gear-train-type folding and unfolding device and folding and unfolding method thereof
  • Planetary-gear-train-type folding and unfolding device and folding and unfolding method thereof

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with accompanying drawing.

[0037] Such as figure 1 , 2 As shown in and 3 , the planetary gear train type folding device includes a rotating mechanism 2 , an overturning plate 3 , a folding assembly 5 , a planetary gear train transmission mechanism 6 , a second motor 7 , a stationary plate 9 and an unlocking mechanism 10 .

[0038] Such as figure 1 , 2 , 3 and 4, the rotating mechanism 2 includes a magnetic lock plate 1, a fixed plate 11, a connecting plate 2-1, a hinged shaft 2-2, a fixed boss 2-3, a magnetic lock 2-4, and the first hinged seat 2 -5. The second hinge seat 2-6, the rolling bearing 2-7 and the first motor 2-8; the magnetic lock plate 1 and the fixed plate 11 are all fixed on the spacecraft. The magnetic lock plate 1 and the fixed plate 11 are arranged at intervals. The first hinge base 2-5 is fixed on the fixed plate 11. The hinged shaft 2-2 is supported on the first hinged seat ...

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Abstract

The invention discloses a planetary-gear-train-type folding and unfolding device and a folding and unfolding method thereof. The majority of spacecraft folding and unfolding mechanisms only have one-stage unfolding and lack locking devices, the folding ratio is small, and the transmission efficiency is low. The planetary-gear-train-type folding and unfolding device comprises a rotary mechanism, an overturn plate, a folding and unfolding assembly, a planetary-gear-train transmission mechanism, a gear driving piece and a static plate. The rotary mechanism comprises a fixing plate, a connecting plate and a first motor. The planetary-gear-train transmission mechanism comprises a fan-shaped inner gear, a planetary gear, a sun gear, a first support, a second support and a planetary frame. The folding and unfolding assembly comprises a first connecting rod, a second connecting rod, a first sliding block, a second sliding block and (2n+1) supporting frames. The (2n+1) supporting frames are sequentially arranged, and the inner ends of every two adjacent supporting frames are hinged. According to the planetary-gear-train-type folding and unfolding device, the folding ratio is large, thin-film solar cells on the supporting frames are utilized to control the unfolding angles, and high accuracy and stability are achieved.

Description

technical field [0001] The invention belongs to the field of aerospace, and in particular relates to a planetary gear system folding device and a folding method thereof. Background technique [0002] Solar energy is the main energy source for spacecraft. In order to ensure that enough solar energy is received, folding mechanisms are widely used in construction machinery and aerospace fields. At present, mature solar panel deployment mechanisms mainly include hinged deployment mechanisms and rod-shaped deployment mechanisms, which are characterized by a large light-receiving area after deployment. However, the solar cell panels used in this type of solar cell panel deployment mechanism are mainly rigid structures, and there are problems such as low power supply per unit mass. In addition, most spacecraft folding mechanisms have only one stage of deployment, lack of locking devices, small folding ratios, and low transmission efficiency. Contents of the invention [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H37/12F16H57/023F16H57/08
CPCF16H37/12F16H57/023F16H57/08Y02E10/50
Inventor 胡明张丹丹赵德明马善红陈文华周煦武
Owner ZHEJIANG SCI-TECH UNIV
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