Novel double-shaft flexible hinge with elliptical cross section

A technology of flexible hinges and cross-sections, applied in the direction of pivot connection, etc., can solve problems such as stress concentration, achieve the effect of solving stress concentration, avoiding restriction of rotation angle, and improving stroke

Pending Publication Date: 2022-02-25
SHANTOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can solve the problem of stress concentration at the apex of the cross section of the flexible hinge, improve the bending flexibility stroke, and improve the fatigue life

Method used

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  • Novel double-shaft flexible hinge with elliptical cross section
  • Novel double-shaft flexible hinge with elliptical cross section
  • Novel double-shaft flexible hinge with elliptical cross section

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Embodiment Construction

[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0034] Such as Figure 4 As shown, a novel biaxial flexible hinge with an elliptical cross-section according to an embodiment of the present invention includes a flexible notch area 1 and a relatively rigid block 1 2 and a relatively rigid block 2 3, 4 connected to its two ends as a whole. The geometric central axis that runs through 1, 2, and 3 structures.

[0035] In order to facilitate the description of the structure of the present invention, use Figure 4 The shown section plane perpendicular to the central axis is defined as a transverse section, and the section plane including the central axis is defined as a longitudinal section, and there may be multiple cross-sectional sections and longitudinal sections.

[0036] Among them, the cross section 11 is the...

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PUM

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Abstract

The embodiment of the invention discloses a novel double-shaft flexible hinge with an elliptical cross section, the flexible hinge comprises a first rigid block, a second rigid block and a flexible notch area, the first rigid block and the second rigid block are positioned at two ends, the flexible notch area is positioned between the first rigid block and the second rigid block, and at least one part of the flexible notch area is elliptical in the cross section perpendicular to the central axis of the whole. By the adoption of the double-shaft flexible hinge, the problems that stress at the vertex of the cross section of an existing double-shaft flexible hinge with the rectangular cross section is concentrated, and the cross section is prone to buckling deformation are effectively solved, the rotation angle is prevented from being limited, the bending flexibility stroke is improved, and the fatigue life is prolonged.

Description

technical field [0001] The invention relates to the technical field of flexible hinges, in particular to a novel biaxial flexible hinge with an elliptical cross section. Background technique [0002] Compliant mechanism (flexible mechanism) refers to a special mechanism that uses the elastic deformation of its constituent materials to transmit or convert force, motion or energy. Compared with the traditional rigid mechanism, the compliant mechanism has the advantages of no gap, no assembly, high transmission accuracy, etc., and has been widely used in cutting-edge fields such as robotics, precision positioning, and biomedical engineering. Such as figure 1 Shown is a rigid four-bar linkage versus a flexible four-bar linkage. [0003] The flexible hinge (flexible kinematic pair) is one of the core components of the compliant mechanism. Flexible hinge refers to a kinematic pair structure that uses elastic deformation of materials to generate relative motion between adjacent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C11/04
CPCF16C11/04
Inventor 魏华贤牛小东王奉涛杨剑李远超陈洲武
Owner SHANTOU UNIV
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