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CN109968327A - It is a kind of to open up coupling mechanism containing 16 rings - Google Patents

It is a kind of to open up coupling mechanism containing 16 rings Download PDF

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Publication number
CN109968327A
CN109968327A CN201910242375.1A CN201910242375A CN109968327A CN 109968327 A CN109968327 A CN 109968327A CN 201910242375 A CN201910242375 A CN 201910242375A CN 109968327 A CN109968327 A CN 109968327A
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China
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plane
rod piece
rod
degree
interior
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CN201910242375.1A
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CN109968327B (en
Inventor
赵小明
刘婧芳
丁华锋
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Beijing University of Technology
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Beijing University of Technology
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25JMANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J9/00Programme-controlled manipulators
    • B25J9/003Programme-controlled manipulators having parallel kinematics
    • B25J9/0045Programme-controlled manipulators having parallel kinematics with kinematics chains having a rotary joint at the base
    • B25J9/0048Programme-controlled manipulators having parallel kinematics with kinematics chains having a rotary joint at the base with kinematics chains of the type rotary-rotary-rotary

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  • Engineering & Computer Science (AREA)
  • Robotics (AREA)
  • Mechanical Engineering (AREA)
  • Toys (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

Coupling mechanism is opened up containing 16 rings the invention discloses a kind of, which includes 18 node rod pieces, and 32 connecting rods hingedly form 16 rings by connecting rod between node rod piece altogether.18 node rod pieces include two regular quadrangle rod pieces, eight Ι type quadrangle rod pieces, eight triangle rod pieces.Angle is 90 degree between the adjacent axis of four revolute pairs on regular quadrangle rod piece, and the angle between the adjacent axis of four revolute pairs on Ι type quadrangle rod piece is followed successively by 124 degree, 56 degree, 56 degree, 124 degree.Angle between the adjacent axis of three revolute pairs of triangle rod piece is 135 degree, 90 degree, 135 degree.The mechanism each branched structure composition is identical and symmetrical, can unidirectionally move, and coupling mechanism can be opened up by belonging to a kind of polyhedron.The mechanism can be collapsed according to operating condition and environmental demand stretching, extension, be readily transported, can preferably be adapted to special occasions, there is good application prospect.

Description

It is a kind of to open up coupling mechanism containing 16 rings
Technical field
The present invention be it is a kind of singly move it is polycyclic open up symmetrical coupled mechanism, be related to applied mechanism technical field, especially Relate to a kind of space robot field with foldable mechanism.
Background technique
As mechanism is from simply to complicated, flat space-oriented, monocycle to polycyclic continuous development, mechanics innovation is machine always The key and research hotspot of device equipment innovation.The advantages such as existing parallel institution has bearing capacity strong, and rigidity is big, and inertia is low, But working space is limited: serial mechanism working space is big, and structure is simply dexterous, but intensity is low, is not suitable for heavily loaded occasion.? Under such development trend, hybrid mechanism comes into being.Well there is the advantages of serial mechanism and parallel institution in this kind of mechanism It imitates compound, while the shortcomings that break through each self-structure, becomes the research hotspot of field of mechanisms in recent years.Structure composition complexity but appearance Novel hybrid mechanism, the connection branch between rack and moving platform intercouple, not independent each other, usually with more The form that a identical ring structure connection reticulates coupling mechanism is presented, so that such mechanism has structure function and appearance Two-fold advantage meets the development trend of mechanism.
But since the Structure Configuration Synthesis theory of existing maturation is suitable for the parallel institution with individual branches.With parallel machine It is totally different in structure structure, Structure Configuration Synthesis theory that oneself has is determined to polycyclic coupling mechanism and is not suitable for, and coupling is greatly limited Mechanism, the proposition of especially polycyclic coupling new mechanism, is very important to a large amount of development and application for promoting this kind of mechanism.
Summary of the invention
The object of the present invention is to provide a kind of single movements containing 16 rings can open up coupling mechanism robot mechanism, Invention information and technical support are provided for domestic enterprise and research institution.
To achieve the above object, the technical solution adopted by the present invention is that a kind of single movement containing 16 rings can open up coupling machine Structure, the mechanism include 18 node rod pieces, 32 connecting rods;16 are hingedly formed altogether by connecting rod between node rod piece Ring.
18 node rod pieces are by two regular quadrangle rod pieces, eight Ι type quadrangle rod pieces, eight triangle rod piece groups At.Angle is 90 degree between the adjacent axis of four revolute pairs on regular quadrangle rod piece, four rotations on Ι type quadrangle rod piece Angle between secondary adjacent axis is followed successively by 124 degree, 56 degree, 56 degree, 124 degree.Three revolute pairs of triangle rod piece it is adjacent Angle between axis is 135 degree, 90 degree, 135 degree.
The axis of the revolute pair of connecting rod two end is parallel to each other, and both ends are connect with different types of node rod piece, and connecting rod connects Node rod piece is connect there are two types of connection type, the first connection type be connecting rod both ends respectively with four side of triangle rod piece and Ι type Shape rod piece is hinged, and second of connection type is that the both ends of connecting rod are hinged with Ι type quadrangle rod piece and regular quadrangle rod piece respectively;
The central point of 18 node rod pieces is distributed in from the bottom up in six parallel planes, plane P1With plane P6It is interior Respectively arrange a regular quadrangle rod piece, the line DM and this six planes between two regular quadrangle rod piece central points are vertical;It is flat Face P2Four Ι type quadrangle rod pieces of interior arrangement, the central point of four Ι type quadrangle rod pieces are evenly arranged on line DM and plane P2's Intersection point is plane P on the circumference in the center of circle3Four triangle rod pieces of interior arrangement, the central point of four triangle rod pieces be evenly arranged on Line DM and plane P3Intersection point be the center of circle circumference on, plane P4Four triangle rod pieces of interior arrangement, four triangle rod pieces Central point is evenly arranged on line DM and plane P4Intersection point be the center of circle circumference on, plane P5Four Ι type quadrangle bars of interior arrangement The central point of part, four Ι type quadrangle rod pieces is evenly arranged on line DM and plane P5Intersection point be the center of circle circumference on;18 The central point of node rod piece was also distributed about in eight perpendiculars of line DM and the angle between them is 45 degree, successively remembers For R1、T1、R2、T2、R3、T3、R4、T4, wherein plane P1The central point M of interior node rod piece, plane P2In interior node rod piece Heart point Ai, P4The central point C of interior node rod pieceiIt is distributed in same plane RiIt is interior, i=1,2,3,4;Plane P6Interior node rod piece Central point D, plane P3The central point B of interior node rod piecei, plane P5The central point D of interior node rod pieceiIt is distributed in same Plane TiInterior, each node rod piece passes through connecting rod hingedly different types of node rod piece.
Compared with prior art, the invention has the following advantages that
Each branched structure composition of the mechanism is identical and symmetrical, and node rod piece component is by regular quadrangle rod piece, four side of Ι type Shape rod piece, triangle rod piece composition, and general coupling mechanism is only made of n-shaped, enriches the multiplicity of coupling mechanism Property;
The mechanism has single-degree-of-freedom moving movement property, and under specific drive condition, which can unidirectionally be moved And movement is shunk and is unfolded to geometric center, and is collapsed according to operating condition and environmental demand stretching, extension, and it is readily transported, it can be more preferable Ground adapts to special occasions, there is good application prospect.
Detailed description of the invention
A kind of Fig. 1: single mobile schematic diagram for opening up symmetrical coupled mechanism for containing 16 rings
In figure: the central point of 18 node rod pieces is distributed in from the bottom up in six parallel planes, plane P1Peace Face P6One regular quadrangle rod piece of interior each arrangement, line DM and this six planes between two regular quadrangle rod piece central points hang down Directly;Plane P2Four Ι type quadrangle rod pieces of interior arrangement, the central point of four Ι type quadrangle rod pieces are evenly arranged on line DM and put down Face P2Intersection point be the center of circle circumference on, plane P3The central point of four triangle rod pieces of interior arrangement, four triangle rod pieces is uniformly distributed With line DM and plane P3Intersection point be the center of circle circumference on, plane P4Four triangle rod pieces of interior arrangement, four triangle bars The central point of part is evenly arranged on line DM and plane P4Intersection point be the center of circle circumference on, plane P5Four Ι type quadrangles of interior arrangement The central point of rod piece, four Ι type quadrangle rod pieces is evenly arranged on line DM and plane P5Intersection point be the center of circle circumference on;18 The central point of a node rod piece was also distributed about in eight perpendiculars of line DM and the angle between them is 45 degree, successively It is denoted as R1、T1、R2、T2、R3、T3、R4、T4, wherein plane P1The central point M of interior node rod piece, plane P2Interior node rod piece Central point Ai, P4The central point C of interior node rod pieceiIt is distributed in same plane RiIt is interior, i=1,2,3,4;Plane P6Interior point lever The central point D of part, plane P3The central point B of interior node rod piecei, plane P5The central point D of interior node rod pieceiIt is distributed in same One plane TiInterior, each node rod piece passes through connecting rod hingedly different types of node rod piece.
Fig. 2: schematic diagram is received in the symmetrical coupled mechanism exhibition of opening up containing 16 rings
Specific embodiment
As shown in Figure 1, the central point of 18 node rod pieces is distributed in from the bottom up in six parallel planes, plane P1With plane P6One regular quadrangle rod piece of interior each arrangement, line DM between two regular quadrangle rod piece central points and this six it is flat Face is all vertical;Plane P2Four Ι type quadrangle rod pieces of interior arrangement, the central point of four Ι type quadrangle rod pieces are evenly arranged on line DM and plane P2Intersection point be the center of circle circumference on, plane P3Four triangle rod pieces of interior arrangement, the center of four triangle rod pieces Point is evenly arranged on line DM and plane P3Intersection point be the center of circle circumference on, plane P4Four triangle rod pieces of interior arrangement, four three The central point of side shape rod piece is evenly arranged on line DM and plane P4Intersection point be the center of circle circumference on, plane P5Four Ι types of interior arrangement The central point of quadrangle rod piece, four Ι type quadrangle rod pieces is evenly arranged on line DM and plane P5Intersection point be the center of circle circumference On;The central point of 18 node rod pieces was also distributed about in eight perpendiculars of line DM and the angle between them is 45 Degree, is successively denoted as R1、T1、R2、T2、R3、T3、R4、T4, wherein plane P1The central point M of interior node rod piece, plane P2Interior section The central point A of point rod piecei, P4The central point C of interior node rod pieceiIt is distributed in same plane RiIt is interior, i=1,2,3,4;Plane P6It is interior Node rod piece central point D, plane P3The central point B of interior node rod piecei, plane P5The central point D of interior node rod piecei It is distributed in same plane TiInterior, each node rod piece passes through connecting rod hingedly different types of node rod piece.

Claims (2)

1. a kind of single movement containing 16 rings can open up coupling mechanism, it is characterised in that: the mechanism include 18 node rod pieces, three 12 connecting rods;16 rings are hingedly formed by connecting rod altogether between node rod piece;
18 node rod pieces are by two regular quadrangle rod pieces, eight Ι type quadrangle rod pieces, eight triangle rod piece compositions;Just Angle is 90 degree between the adjacent axis of four revolute pairs on quadrangle rod piece, four revolute pairs on Ι type quadrangle rod piece Angle between adjacent axis is followed successively by 124 degree, 56 degree, 56 degree, 124 degree;The adjacent axis of three revolute pairs of triangle rod piece Between angle be 135 degree, 90 degree, 135 degree;
The axis of the revolute pair of connecting rod two end is parallel to each other, and both ends are connect with different types of node rod piece, connecting rod connection section Point rod piece there are two types of connection type, the first connection type be connecting rod both ends respectively with triangle rod piece and Ι type quadrangle bar Part is hinged, and second of connection type is that the both ends of connecting rod are hinged with Ι type quadrangle rod piece and regular quadrangle rod piece respectively.
2. a kind of single movement containing 16 rings according to claim 1 can open up coupling mechanism, it is characterised in that: 18 sections The central point of point rod piece is distributed in from the bottom up in six parallel planes, plane P1With plane P6One positive four side of interior each arrangement Shape rod piece, the line DM and this six planes between two regular quadrangle rod piece central points are vertical;Plane P2Four Ι types of interior arrangement The central point of quadrangle rod piece, four Ι type quadrangle rod pieces is evenly arranged on line DM and plane P2Intersection point be the center of circle circumference On, plane P3Four triangle rod pieces of interior arrangement, the central point of four triangle rod pieces are evenly arranged on line DM and plane P3Friendship Point is plane P on the circumference in the center of circle4Four triangle rod pieces of interior arrangement, the central point of four triangle rod pieces are evenly arranged on to connect Line DM and plane P4Intersection point be the center of circle circumference on, plane P5Four Ι type quadrangle rod pieces of interior arrangement, four Ι type quadrangle bars The central point of part is evenly arranged on line DM and plane P5Intersection point be the center of circle circumference on;The central point of 18 node rod pieces It was distributed in eight perpendiculars of line DM and the angle between them is 45 degree, and be successively denoted as R1、T1、R2、T2、R3、T3、 R4、T4, wherein plane P1The central point M of interior node rod piece, plane P2The central point A of interior node rod piecei, P4Interior point lever The central point C of partiIt is distributed in same plane RiIt is interior, i=1,2,3,4;Plane P6The central point D of interior node rod piece, plane P3It is interior Node rod piece central point Bi, plane P5The central point D of interior node rod pieceiIt is distributed in same plane TiIt is interior, each node rod piece Pass through the hinged different types of node rod piece of connecting rod.
CN201910242375.1A 2019-03-28 2019-03-28 Extensible coupling mechanism with sixteen rings Active CN109968327B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112454376A (en) * 2020-10-28 2021-03-09 北京工业大学 Deployable coupling mechanism containing twenty-four rings

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6618025B2 (en) * 1999-06-11 2003-09-09 Harris Corporation Lightweight, compactly deployable support structure with telescoping members
JP4425550B2 (en) * 2003-02-05 2010-03-03 株式会社アイ・オー・データ機器 Multi-view stereoscopic camera
CN106393063A (en) * 2016-09-20 2017-02-15 北京工业大学 Single-freedom-degree moving dodecahedron foldable symmetric coupling mechanism
CN106493717A (en) * 2016-12-30 2017-03-15 北京工业大学 A kind of icosahedral single movement can open up symmetrical coupled mechanism
CN108890627A (en) * 2018-08-02 2018-11-27 北京交通大学 A kind of five-freedom parallel structure of the branch containing closed loop
CN108942898A (en) * 2018-09-26 2018-12-07 北京工业大学 Coupling mechanism is opened up containing 120 rings

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6618025B2 (en) * 1999-06-11 2003-09-09 Harris Corporation Lightweight, compactly deployable support structure with telescoping members
JP4425550B2 (en) * 2003-02-05 2010-03-03 株式会社アイ・オー・データ機器 Multi-view stereoscopic camera
CN106393063A (en) * 2016-09-20 2017-02-15 北京工业大学 Single-freedom-degree moving dodecahedron foldable symmetric coupling mechanism
CN106493717A (en) * 2016-12-30 2017-03-15 北京工业大学 A kind of icosahedral single movement can open up symmetrical coupled mechanism
CN108890627A (en) * 2018-08-02 2018-11-27 北京交通大学 A kind of five-freedom parallel structure of the branch containing closed loop
CN108942898A (en) * 2018-09-26 2018-12-07 北京工业大学 Coupling mechanism is opened up containing 120 rings

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112454376A (en) * 2020-10-28 2021-03-09 北京工业大学 Deployable coupling mechanism containing twenty-four rings
CN112454376B (en) * 2020-10-28 2023-08-01 北京工业大学 Deployable coupling mechanism containing twenty-four rings

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