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Spring extension type unfoldable mechanism

A deployment mechanism and telescopic technology, which is applied in the direction of motor vehicles, space navigation equipment, space navigation vehicles, etc., can solve the problems of complex structure of the deployable mechanism, intense deployment process, low deployment reliability, etc., and achieve stable deployment process, The structure is simple, and the effect of preventing failure of unfolding

Active Publication Date: 2017-12-12
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of complex structure, intense deployment process, low deployment precision and low deployment reliability of the existing deployable mechanism, the present invention proposes a deployment mechanism with high deployment precision, simple structure, high deployment reliability and stable deployment process. Telescopic deployment mechanism

Method used

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  • Spring extension type unfoldable mechanism
  • Spring extension type unfoldable mechanism
  • Spring extension type unfoldable mechanism

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Embodiment Construction

[0034] Below in conjunction with accompanying drawing and specific embodiment content of the present invention is described in further detail:

[0035] The invention provides an unfolding mechanism with high unfolding precision, simple structure, high unfolding reliability, stable unfolding process and wide application range.

[0036] The spring telescopic expandable mechanism includes a support ring 3, a spring 1, a rubber washer 7, a rope 6 and a clutch assembly 5; The support rings are the second-level support ring 32, the third-level support ring 33 and the fourth-level support ring 34, and the three intermediate support rings are sequentially arranged between the first-level support ring 31 and the last-level support ring 35; the clutch assembly 5 For explosive bolts or solenoid valves;

[0037] The spring is arranged between the outer peripheral surface of the first-stage support ring and the outer peripheral surface of the last-stage support ring, and is connected with...

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Abstract

The invention relates to a spring extension type unfoldable mechanism. The spring extension type unfoldable mechanism comprises supporting rings, a spring, a rope and a clutch assembly, and the supporting rings comprise the first stage supporting ring, the last stage supporting ring and the middle supporting rings; the adjacent supporting rings are connected through long screws, screw caps at one ends of the long screws are fixedly arranged in counterbores of one of the adjacent supporting rings, the other ends of the long screws are connected with nuts which are arranged in counterbores of the other supporting rings; the spring is connected with the first stage supporting ring and the last stage supporting ring; one end of the rope is connected to the first stage supporting ring, and the other end of the rope is connected to the last stage supporting ring; flange lugs are arranged on the first stage supporting ring and the last stage supporting ring correspondingly, and mounting holes are formed in the centers of the flange lugs; and the clutch assembly penetrates through the mounting holes and is connected with the first stage supporting ring and the last stage supporting ring. The extension type unfoldable mechanism is high in unfolding precision, simple in structure style, high in unfolding reliability and stable in unfolding process.

Description

technical field [0001] The invention relates to a spring telescopic expandable mechanism, which can be widely used in the unfolding work of aerospace and ground mechanisms. Background technique [0002] In the field of aerospace at home and abroad, deployable technology is widely used. Large-scale deployable antennas, large-aperture deployable optical systems, and large-scale deployable hoods all have deployable mechanisms. Common deployable mechanisms generally include inflatable deployment mechanisms, thin-walled deployment mechanisms, and hinged truss-type deployment mechanisms; inflatable deployment mechanisms, such as the Inflatable Deployment Antenna Space Expansion Test (IAE) in the United States in 1996, have an inflatable deployment structure with quality It has the advantages of light weight, high folding efficiency, strong bearing capacity, and low engineering complexity, but its rigidity and unfolding accuracy are low, and thermal deformation is relatively large;...

Claims

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Application Information

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IPC IPC(8): B64G1/22
CPCB64G1/222
Inventor 林上民刘阳王虎薛要克刘杰曹婧陈苏刘美莹车云强周藏龙
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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