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A Large-Stroke Flexible Rotary Hinge Based on Four-bar Mechanism

A technology of four-bar mechanism and large stroke, which is applied in the direction of anti-centrifugal rotating parts, mechanical equipment, bearings, etc., can solve the problems of small rotation angle and large strain, reduce stress and strain, improve stroke and service life, and center drift small effect

Active Publication Date: 2018-07-20
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of small rotation angle or large strain existing in the existing flexible rotary hinge, the present invention provides a flexible rotary hinge with a large stroke based on a four-bar mechanism. °

Method used

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  • A Large-Stroke Flexible Rotary Hinge Based on Four-bar Mechanism
  • A Large-Stroke Flexible Rotary Hinge Based on Four-bar Mechanism
  • A Large-Stroke Flexible Rotary Hinge Based on Four-bar Mechanism

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Embodiment Construction

[0026] The specific embodiments of the present invention will be further described below.

[0027] Implementing the above-mentioned large-stroke flexible rotating hinge based on a four-bar mechanism provided by the present invention, the flexible rotating hinge is a flexible rotating hinge based on a four-bar mechanism, and the four-bar mechanism is used as a motion transmission and energy storage module. Take the crank-rocker mechanism as an example, the rocker is replaced by a flexible rod, the flexible rocker is used to store energy, and the crank is replaced by the inner ring, so as to realize the rotation movement of a large turning angle; during the movement of the mechanism, the flexible The flexible rod of the hinge has a certain deformation, stores energy, locks the mechanism, releases the locking part, and rotates the flexible rod in the hinge to realize the reverse movement of the mechanism; the flexible hinge based on the four-bar mechanism, including the outer ring...

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Abstract

A flexible rotary hinge based on four-link mechanisms is formed in such a way that an inner ring and an outer ring are connected with each other through the uniformly distributed four-link mechanisms and are connected with an outer ring support frame. In each four-link mechanism, one end of each side link is connected with the inner wall of the outer ring, the other ends of the side links are connected with rigid links, and the other ends of the rigid links are connected with the inner ring, so that a four-link rotation magnification structure is formed. The flexible rotary hinge provided by the invention is a flexible rotary hinge based on driving of the four-link rotation magnification mechanisms, has the characteristics of large travel and high precision and is suitable for a large-travel precise control mechanism.

Description

technical field [0001] The invention relates to a flexible rotating hinge, in particular to a large-stroke rotating hinge based on a crank-rocker mechanism with enlarged rotation angle, which is suitable for robots, folding mechanisms and the like. Background technique [0002] Flexible hinge refers to a form of kinematic pair that uses the elastic deformation of materials to generate relative motion between adjacent rigid rods under the action of external force or moment, which is very different from the structure of traditional rigid kinematic pairs. The rigid hinge (mechanism) of the flexible hinge (mechanism) has the advantages of integration, freedom from lubrication, no gap and friction, etc. At the same time, its energy storage characteristics lay the foundation for the application of the flexible rotating hinge in the space folding mechanism. [0003] Rotary hinge, also known as rotary hinge, is to perform coaxial rotation of different components, allowing two compon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H33/02F16C11/12
CPCF16C11/12F16C2300/02F16H33/02
Inventor 张静崔功军高贵军李军霞闫凯
Owner TAIYUAN UNIV OF TECH
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