Regular tetrahedral symmetrical deployable mechanism unit

A mechanism unit and regular tetrahedron technology, which is applied in the field of regular tetrahedral symmetrical deployable mechanism units, can solve the problems of difficult design and engineering application of new expandable structures, and few types of mechanism units, and achieves simple structure, beautiful appearance, Create convenient effects

Inactive Publication Date: 2013-02-06
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are still few types of mechanism units at this stage, which brings g...

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  • Regular tetrahedral symmetrical deployable mechanism unit
  • Regular tetrahedral symmetrical deployable mechanism unit
  • Regular tetrahedral symmetrical deployable mechanism unit

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Embodiment Construction

[0017] The following describes the present invention further in conjunction with specific embodiments and with reference to the drawings:

[0018] figure 1 Figure 2 is a schematic diagram of the structure and a schematic diagram of the main components of a tetrahedral symmetrical deployable mechanism unit of the present invention.

[0019] The tetrahedral symmetrical deployable mechanism unit of the present invention includes 16 three-bar intersecting connecting nodes 1 and 24 connecting rod units 2 of equal length. Each three-bar intersecting connecting node 1 is provided with three rotating pairs 3 , The three-bar intersection connection node 1 is connected to the three link units 2 through three rotating pairs 3, and the two ends of each link unit 2 are respectively connected to different three-bar intersection connection nodes 1 through the rotating pair 3. As shown in Figure 2, each connecting node 1 in the deployable mechanism unit of the present invention is provided with th...

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Abstract

The invention discloses a regular tetrahedral symmetrical deployable mechanism unit which comprises 16 three-rod intersected connecting nodes and 24 equilong connecting rod units, wherein each three-rod intersected connecting node is provided with three revolute pairs, and the three-rod intersected connecting node is respectively connected with three connecting rod units through the three revolute pairs, and the two ends of the each connecting rod unit are respectively connected with different three-rod intersected connecting nodes through the revolute pairs; and the axial leads of the three revolute pairs on each three-rod intersected connecting node are located in a same plane, and a triangle formed by the intersection of the axial leads of the three revolute pairs is an equilateral triangle, a connecting rod installing position of each revolute pair is arranged at the midpoint of an edge of the equilateral triangle, and a connecting rod unit is perpendicular to the axial lead of the revolute pair connected with the connecting rod unit. The deployable mechanism unit disclosed by the invention is just composed of connecting rods and revolute pairs, so that the deployable mechanism unit is simple in structure, beautiful in modelling, convenient to manufacture, and easy to be folded and unfolded.

Description

Technical field [0001] The invention relates to a mechanism and a deployable structure, in particular to a regular tetrahedral symmetrical deployable mechanism unit. Background technique [0002] The deployable structure can be quickly expanded and formed in a compact and folded state, which has attracted wide attention from designers and engineers, and has gradually been applied in engineering. In recent years, researchers have proposed several types of deployable structural units. Among them, the shear hinge unit is the more common basic unit in the deployable structure. The Bennett unit and the derived Bricard unit belong to another type of classic closed loop mechanism. . The above types of basic units all have single-degree-of-freedom motion characteristics, and the multiple self-stress modes of the structure can provide additional structural rigidity, which has played an important role in the design of deployable structures. However, there are still fewer types of mechani...

Claims

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Application Information

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IPC IPC(8): E04B1/344
Inventor 陈耀冯健
Owner SOUTHEAST UNIV
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