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Seven-revolute pair extensible unit and space extensible mechanism using same

A rotating pair and space technology, applied to the supporting structure of photovoltaic modules, motor vehicles, electrical components, etc., can solve the problems of demanding geometric parameters, poor deployment performance, and low reliability, and achieve good shock resistance, long life, Ease of production and processing

Active Publication Date: 2011-08-31
哈工大机电工程(嘉善)研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems that the existing 5-rotating pair mechanism has strict requirements on geometric parameters, poor deployment performance, low reliability, and is not suitable for a large-scale space expandable mechanism, and further provides a seven-rotating pair expandable Unit and space expandable mechanism adopting the expandable unit

Method used

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  • Seven-revolute pair extensible unit and space extensible mechanism using same
  • Seven-revolute pair extensible unit and space extensible mechanism using same
  • Seven-revolute pair extensible unit and space extensible mechanism using same

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specific Embodiment approach 1

[0012] Specific implementation mode one: combine figure 1 Describe this embodiment, a seven-rotation pair expandable unit in this embodiment, it includes a first expandable unit A, the first expandable unit A is a single closed-loop single-degree-of-freedom expandable unit, the first expandable unit A includes Base 1, first rotating pair 2, first connecting rod 3, second rotating pair 4, second connecting rod 5, third rotating pair 6, third connecting rod 7, fourth rotating pair 8, fifth rotating pair 9. The fourth connecting rod 10, the sixth rotating pair 11, the fifth connecting rod 12, the sixth connecting rod 13 and the seventh rotating pair 14, the first rotating pair 2 and the seventh rotating pair 14 are rotatably installed on the base 1 , the axis of the first rotating pair 2 and the axis of the seventh rotating pair 14 intersect at point P1 in the horizontal plane, and the axis of the first rotating pair 2 and the axis of the seventh rotating pair 14 are parallel to ...

specific Embodiment approach 2

[0013] Specific implementation mode two: combination figure 1 The present embodiment will be described. The susceptor 1 of the present embodiment is a regular polygonal susceptor. Such an arrangement not only facilitates the installation of multiple rotating pairs, but also facilitates the first expandable mechanism to be evenly arranged on the base. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0014] Specific implementation mode three: combination Figure 2-Figure 4Describe this embodiment, a space expandable mechanism using seven rotating pair expandable units in this embodiment, it includes a plurality of first expandable units A', each of the first expandable units A' is a single closed-loop single Degree of freedom expandable unit, the first expandable unit A' includes a common base 1', a first rotating pair 2, a common first connecting rod 3', a second rotating pair 4, a second connecting rod 5, and a third rotating pair 6. The third connecting rod 7, the fourth rotating pair 8, the fifth rotating pair 9, the fourth connecting rod 10, the sixth rotating pair 11, the fifth connecting rod 12, the shared sixth connecting rod 13' and the seventh rotating pair 14. The first revolving pair 2 and the seventh revolving pair 14 are rotatably mounted on a common base 1', the axis of the first revolving pair 2 and the axis of the seventh revolving pair 14 intersect at poi...

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Abstract

The invention provides a seven-revolute pair extensible unit and a space extensible mechanism using same, and relates to a single-closed loop and single-freedom degree space extensible mechanism aiming at solving the problem that the existing five-revolute pair mechanism is rigorous in geometric parameter requirement, poor in extensible performance, low in reliability, and not suitable for a large-size space extensible mechanism. A plurality of first extensible units are single-closed loop and single-freedom degree extensible units, a plurality of first extensible unit ring arrays are arranged on a common base, and every two adjoining first extensible units are formed into a first space extensible mechanism by a common first connecting rod or a common sixth connecting rod; and a plurality of second extensible units are single-closed loop and single-freedom degree space extensible units, a plurality of second extensible unit ring arrays are arranged on the common base, and every two adjoining second extensible units are formed into a second space extensible mechanism by the common first connecting rod or the common second connecting rod. The invention is suitable for a support frame of a satellite parabolic antenna and a solar battery array.

Description

technical field [0001] The invention relates to a seven-rotation pair expandable unit and a space expandable mechanism using the expandable unit. Background technique [0002] With the increasingly complex functions of spacecraft, the energy demand for spacecraft has increased significantly, and the area of ​​spacecraft solar arrays has also increased significantly. For complex and large spacecraft such as the International Space Station, the area of ​​solar arrays is huge, but spaceflight However, the envelope size of the device is limited by the volume of the payload compartment of the launch vehicle, which requires a high-folding-ratio expandable mechanism that can shrink to a small volume during the launch phase and expand to a large area or volume during the operation phase. Deployable mechanisms are widely used in spacecraft such as space stations, communication satellite platforms, space telescopes, space shuttles, and planetary probes. Such as the basic skeleton of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64G1/22H01L31/042H02S20/30
CPCY02E10/50
Inventor 邓宗全郭宏伟刘荣强李兵黄海林
Owner 哈工大机电工程(嘉善)研究院
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