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Large-travel flexible rotary hinge based on four-link mechanisms

A four-bar mechanism, large stroke technology, applied to rotating parts, mechanical equipment, bearings and other directions that resist centrifugal force, can solve problems such as small rotation angle and large strain, reduce stress and strain, small center drift, improve stroke and use effect of life

Active Publication Date: 2016-12-14
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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  • Large-travel flexible rotary hinge based on four-link mechanisms
  • Large-travel flexible rotary hinge based on four-link mechanisms
  • Large-travel flexible rotary hinge based on four-link mechanisms

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Embodiment Construction

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

[0027] Implementing the above-mentioned invention provides a large-stroke flexible rotary hinge based on a four-bar mechanism. The flexible rotary hinge is based on a four-bar mechanism. The four-bar mechanism is used as a motion transmission and energy storage module. Taking the crank-rocker mechanism in the above as an example, the rocker is replaced by a flexible rod, and the flexible rocker is used to store energy, and the crank is replaced by the inner ring, so as to realize the rotational movement of a large rotation 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 locked 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 includes the outer ring and the inner ri...

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

Claims

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Application Information

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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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