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Super-cell and large-range variable stiffness mechanical metamaterial based on planetary gear system

A planetary gear, supercell technology, applied in the direction of gear transmission, belt/chain/gear, transmission parts, etc., can solve the problems of less stable state, low control robustness, narrow elastic parameter adjustment range, etc. The effect of reliability

Active Publication Date: 2021-12-10
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the deficiencies in the above-mentioned prior art, the present invention provides a supercell based on a planetary gear system and a large-scale variable stiffness mechanical metamaterial, which overcomes the In the existing reconfigurable mechanical metamaterial design technology, the elastic parameter adjustment range is narrow, the stable state is few, and the control robustness is low; The tensile modulus, and there are defects such as interference between the stressed part and the controlled deformation

Method used

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  • Super-cell and large-range variable stiffness mechanical metamaterial based on planetary gear system
  • Super-cell and large-range variable stiffness mechanical metamaterial based on planetary gear system
  • Super-cell and large-range variable stiffness mechanical metamaterial based on planetary gear system

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Embodiment 1

[0046] like Figure 1-5 As shown in the present embodiment, a super cell based on the planetary gear system is applied to a wide range of rigidity mechanics super materials, including planetary gear mechanisms and transmission mechanisms. Among them, the planetary gear mechanism includes an outer ring 1, the sun gear 2 is provided with a plurality of first rounds 101 along the inner wall of the outer ring 1, and the outer wall of the sun wheel 2 is disposed along the circumferential interval. Several second wheel tooth 201, the first round of teeth 101, the second wheel tooth 201 is engaged with the planet wheel 3 assembly, and the outer ring 1 is coaxial with the sun gear 2. The transmission gear 4 includes a drive gear 4 and a central shaft 5, and the center shaft 5 is fixed to the center of the drive gear 4, and the other end is fixed to the center of the sun gear 2, and the transmission gear 4 is coaxial with the solar wheel 2.

[0047] Specifically, the planetary wheel 3 assem...

Embodiment 2

[0055] refer to Image 6 A large-range change rigidity force super material based on the planetary gear system is disclosed, and the hypermaps are periodically extended in the X-axis direction and / or the Y-axis direction from the plurality of Example 1. Mechanical super material For a hierarchical structure, all periodicized transmission is one layer, all periodic planetary gear mechanisms are one layer, and a gap between two layers is connected by a central axis 5. Specifically, between the adjacent two hypertons, the two outer ring 1 are tangentially and fixed, thereby enabling all outer ring 1 forming the outer ring 1 frame structure, which is convenient for molding. The two transmission gear 4 mesh each other, by rotating one of the drive gear 4, driving all the planet wheels 3 in the ultracellular wheel 3 rotates in the ultravailable sun gear 2 in the hypervilization, thereby achieving the mechanical super material equivalent compression Adjustment of Yangyang modulus.

[00...

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Abstract

The invention discloses a super-cell and large-range variable stiffness mechanical metamaterial based on a planetary gear system. The mechanical metamaterial is formed by periodically extending a plurality of super-cells in an x-axis direction and / or a y-axis direction, and each super-cell comprises a planetary gear mechanism and a transmission mechanism. Each planetary gear mechanism comprises an outer ring, a sun gear and a planetary gear assembly. Each transmission mechanism comprises a transmission gear and a center shaft, one end of each center shaft is fixedly connected with the center of the corresponding transmission gear, and the other end is fixedly connected with the center of the corresponding sun gear. According to the mechanical metamaterial, on one hand, the defects that in an existing reconfigurable mechanical metamaterial design technology, the adjustment range of elastic parameters is narrow, the number of stable states is small, and adjustment and control robustness is low are overcome; and on the other hand, the defects that a mechanical metamaterial based on a common plane gear is difficult to bear tensile load, the tensile modulus is difficult to adjust, and interference exists between a stress part and regulation and control deformation are overcome.

Description

Technical field [0001] The present invention relates to the field of material science, mechanical and mechanical engineering technology, and is specifically a super cell based on the planetary gear system and a wide range of rigidity force. Background technique [0002] At present, the fourth industrial revolution has arrived, the core of the fourth industrial revolution is intelligent structure and equipment, such as adaptive aircraft, adaptive control system, intelligent connector, intelligent vibration noise control, and more. The intelligence of the equipment requires the manufacture of units and materials for the manufacturing equipment. Young's modulus (ie rigidity) continuously adjustable mechanical materials can provide basic support for smart equipment design and preparation. However, traditional piezoelectric materials and shape memory alloy materials are difficult to produce a wide range of elastic regulation. There are many challenges in the design of new intelligent ...

Claims

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Application Information

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IPC IPC(8): F16H1/28F16H1/46F16H57/08
CPCF16H1/28F16H1/46F16H57/08
Inventor 方鑫温激鸿郁殿龙
Owner NAT UNIV OF DEFENSE TECH
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