Periphery type space mesh equal-bottom expanding and gathering mechanism
A mesh and space technology, applied in motor vehicles, foldable antennas, walking sticks, etc., can solve the problems of area change, complicated structure of peripheral retractable mechanism, etc., and achieve simple structure, large retraction ratio, and strong rigidity. Effect
Active Publication Date: 2015-09-09
SHANGHAI AEROSPACE SYST ENG INST
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Problems solved by technology
However, the bottom of the common peripheral retractable mechanism will change in size during the retractable process, which complicates the structure of the peripheral retractable mechanism.
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[0029] Such as Figure 1 to Figure 10 As shown, the present invention is a peripheral space net-shaped equal-bottom expansion and retraction mechanism, which is composed of an offset scissor hinge mechanism (1) and an equiangular multiplier mechanism (2); among them, a plurality of offset scissor hinge mechanisms (1) Concatenated in series to form an equiangular multiplier mechanism (2), a plurality of equiangular multiplier mechanisms (2) coaxial arrays form a closed peripheral space mesh bottom extension and retraction mechanism; peripheral space mesh bottom extension Due to the difference in rod shape of the offset scissor hinge mechanism (1), the retracting mechanism is divided into two types: the peripheral pyramid-shaped equal-bottom retracting mechanism (3) and the peripheral ellipsoid-shaped equal-bottom retracting mechanism (4). The offset scissor hinge mechanism (1) of the equal bottom expansion and retraction mechanism (3) is a planar linkage mechanism; the offset s...
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The present invention discloses a periphery type space mesh equal-bottom expanding and gathering mechanism. A periphery type space mesh equal-bottom expanding and gathering device is formed by bias shear hinge mechanisms and equiangular double-stroke mechanisms. The equiangular double-stroke mechanisms are formed by the series connection of a plurality of bias shear mechanisms. A closed periphery type space mesh equal-bottom expanding and gathering mechanism is formed by a plurality of equiangular double mechanism coaxial arrays. The periphery type space mesh equal-bottom expanding and gathering mechanism is divided into a periphery type pyramid equal-bottom expanding and gathering mechanism and a periphery type ellipsoidal equal-bottom expanding and gathering mechanism due to the rod shape difference of bias shear hinge mechanisms. According to the periphery type space mesh equal-bottom expanding and gathering mechanism, a fixed bottom mode is used to complete expanding and gathering operations, the structure is simple, the reliability is high, the periphery type space mesh equal-bottom expanding and gathering mechanism and a spacecraft body can be coaxially arranged, a central passageway is not affected, an expanding and gathering ratio is large, the mechanism belongs to a parallel network structure, and the rigidity is strong. According to the periphery type space mesh equal-bottom expanding and gathering mechanism, an effective solution is provided for a non-sealed shielding or collection operation of a large diameter passage with the need of controlling opening and closing.
Description
technical field [0001] The invention relates to the technical field of unfolding and retracting mechanisms, in particular to a peripheral space mesh bottom unfolding and retracting mechanism. Background technique [0002] Common unfolding and retracting mechanisms are mostly center-type retracting and retracting. Taking an umbrella as an example, when retracting, the surroundings move closer to the center. Peripheral retractable mechanisms are mostly seen on movable roofs of sports venues, where multiple shielding devices gather from the center to the periphery to achieve daylight adjustment. At present, in the field of aerospace, there is an urgent need for a hollow peripheral unfolding and retracting mechanism, which is used for non-sealed shielding or collection operations of large-diameter channels that need to be controlled to open and close. It can not affect the space operation on the central passage, and can be used for the skeleton of the shielding device of the ...
Claims
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IPC IPC(8): H01Q1/08B64G1/22A45B25/02
Inventor 谢哲张晓伟邱华勇
Owner SHANGHAI AEROSPACE SYST ENG INST