CN102913604B - Connection joint for ensuring synchronous movement of rod pieces - Google Patents
Connection joint for ensuring synchronous movement of rod pieces Download PDFInfo
- Publication number
- CN102913604B CN102913604B CN201210397273.5A CN201210397273A CN102913604B CN 102913604 B CN102913604 B CN 102913604B CN 201210397273 A CN201210397273 A CN 201210397273A CN 102913604 B CN102913604 B CN 102913604B
- Authority
- CN
- China
- Prior art keywords
- shaped
- rod member
- shaped plate
- movement
- node
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Pivots And Pivotal Connections (AREA)
Abstract
The invention discloses a connection joint for ensuring the synchronous movement of rod pieces. The connection joint comprises a base, N L-shaped plates, N T-shaped rotating shafts and 2N conical gears, wherein N is an integer more than 2, the N L-shaped plates are arranged on one surface of the base in a central symmetrical manner, each T-shaped rotating shaft is arranged between the two adjacent L-shaped plates, the two ends of each T-shaped rotating shaft respectively penetrate through the adjacent L-shaped plates so as to be connected with one conical gear, and each L-shaped plate is meshed with the two adjacent conical gears. Each L-shaped plate is formed by connecting two same straight plates, and a break angle is arranged between the two straight plates. According to the connection joint, the cost is low, the condition that the rod pieces can freely rotate for 180 degrees is ensured, and the rod pieces to be connected are in accurate synchronous movement.
Description
Technical field
The present invention relates to mechanism and deployable structure, particularly relate to a kind of connected node that rod member is synchronized with the movement of guaranteeing.
Background technique
In the last thirty years, the fast development of China's Space Science and Technology facilitates the application of deployable structure in fields such as Aero-Space, military engineering, civil engineerings.As a kind of new space structures, deployable structure has mechanism motion characteristic, can cater to the actual demands such as the time of residing environment, space, the geometric configuration of change structure effectively, and in movement process, each rod member is in unstress state substantially.Such as, deployable structure is folded into compact rounding state usually, and when it is desired to be used, deployable structure can drive by the external world and progressively launch, and is converted to stable working state.Therefore, deployable structure have be convenient to transport and store, reusable, the duration is short, the advantage such as handsome in appearance.
In the design of mechanism or deployable structure, design of node is extremely important, and joint form determines the expansion-folding property of deployable structure.Be different from general structure node, the node in deployable structure needs to allow institute's connecting rod generation Large travel range and rotation, avoids rod member in expansion process, produce distortion, produces rub with node; In addition, under arrangement works state, node needs to have enough strength and stiffness, to bear various load action.According to the relative movement mode of institute's connecting rod, the connected node in deployable structure mainly comprises translation pair, reverses the types such as pair, revolute pair, and wherein revolute pair node is the most conventional.Because the node in deployable structure generally connects many rod members, need to adopt multipair revolute pair to connect each bar respectively, and appended by node, the axis of each revolute pair is in the same plane, causes node to connect the motion of each rod member thus asynchronous.Existing node mainly relies on the geometric constraint of structure itself that rod member is synchronized with the movement, but when each rod member center and institute's connected node are in same plane, can produce Kinematics singularity phenomenon, geometric constraint was lost efficacy.Therefore, design a kind of novel connected node for improve the service behaviour of deployable structure with Security, guarantee that deployable structure interior joint is connected each rod member and is synchronized with the movement and will has great importance.
Summary of the invention
Technical problem: the object of the invention is to overcome deficiency of the prior art, there is provided a kind of connected node that rod member is synchronized with the movement of guaranteeing be applied in deployable structure, this connected node effectively can guarantee that each rod member that node connects remains synchronous in movement process.
Technological scheme: of the present inventionly guarantee the connected node that rod member is synchronized with the movement, comprise base, N number of L shaped plate, N number of T-shaped rotating shaft and 2N angular wheel, wherein N be greater than 2 integer, N number of L shaped plate is centrosymmetric and is arranged on the one side of base, T-shaped rotating shaft is arranged between two adjacent L shaped plates, be connected with an angular wheel after T-shaped rotating shaft two ends are each passed through adjacent L shaped plate, each L shaped plate two angular wheels adjoining intermesh.
In the present invention, L shaped plate is formed by connecting by two blocks of identical straight plates, a knuckle α is had between two blocks of straight plates, two blocks of straight plates are respectively arranged with an axis hole, two axis holes with the bisectrix of knuckle α for axisymmetric, T-shaped rotating shaft comprises rotatingshaft and is vertically connected on connecting rod on rotatingshaft mid point, and the two ends of rotatingshaft are connected with an angular wheel after being each passed through the axis hole in adjacent L shaped plate.
In the present invention, the knuckle α=2 π/N between two blocks of straight plates of L shaped plate.
In the present invention, be provided with bearing in axis hole, bearing is fixedly connected with on the rotating shaft.
In the present invention, base 1 is provided with breach, the shape of breach, position respectively with connecting rod want the shape of connecting rod and pivotal position to match, to ensure, connecting rod can rotate moving axis 180 degree of free rotations.
In the present invention, connecting rod is provided with the screw thread for being connected with rod member.
Beneficial effect: compared with prior art, the present invention has the following advantages:
(1) existing connected node mainly adopts multipair revolute pair to connect different rod member respectively, and rely on the geometric constraint of structure self to force rod member to be synchronized with the movement, but when rod member center and institute's connected node are positioned at same plane, there is Kinematics singularity point, each rod member is no longer synchronized with the movement; This connected node, according to the mechanical drive principle of angular wheel, makes the rotatingshaft synchronous axial system engaged between two, thus ensure that the rod member precise synchronization motion that each rotatingshaft mid point place connects.
(2) this connected node is provided with rotary bearing dexterously between rotatingshaft and node body, and on node base reserving hole, ensure that the node institute connecting rod moving axis 180 degree that can rotate freely rotates without friction, smoothly intactly complete expansion-fold overall process; And node institute connecting rod can compactly connect in a folded configuration, considerably improves the storage rate of deployable structure.
(3) preparation process of the present invention is simple and cost is low, handsome in appearance, can produce by batch; Screw thread has been preset in connecting rod one end of the T-shaped rotating shaft of this node, is convenient to be connected with rod member.
Accompanying drawing explanation
Fig. 1 a-Fig. 1 c is respectively the present invention and guarantees the overlooking of the connected node that rod member is synchronized with the movement, side-looking, schematic three dimensional views.
Fig. 2 is the critical piece decomposing schematic representation that the present invention guarantees the connected node that rod member is synchronized with the movement.
Fig. 3 a-Fig. 3 f is the structure synchronization movement process schematic diagram of node of the present invention when being applied to connection four rod members, wherein Fig. 3 a, Fig. 3 f are respectively the folded state of rod member downwards, when upwards drawing in completely, Fig. 3 b is the synchronously downward motion state of four rod members, Fig. 3 c, Fig. 3 d be the central point of four rod members close to threshold state during same plane, Fig. 3 e is the synchronous motion states upwards of four rod members.
Fig. 4 a, Fig. 4 b are respectively the present invention for connecting overlooking and schematic three dimensional views of the connected node agent structure of three rod members.
Fig. 5 a, Fig. 5 b are respectively the present invention for connecting overlooking and schematic three dimensional views of the connected node agent structure of five rod members.
Wherein: 1 is connected node base, 2 is L shaped plate, and 3 is bearing, and 4 is T-shaped rotating shaft, and 5 is angular wheel, and 11 is the breach that node base is arranged, and 21 is axis hole set on straight plate, and 41 is rotatingshaft, and 42 is connecting rod.
Embodiment
Below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described further:
Fig. 1, Fig. 2 are respectively of the present invention and guarantee the general structure schematic diagram of the connected node that rod member is synchronized with the movement and the schematic diagram of chief component.
Of the present inventionly guarantee the connected node that rod member is synchronized with the movement, comprise base 1, N number of L shaped plate 2, N number of T-shaped rotating shaft 4 and 2N angular wheel 5, wherein N be greater than 2 integer, N number of L shaped plate 2 is centrosymmetric and is arranged on the one side of base 1, T-shaped rotating shaft 4 is arranged between two adjacent L shaped plates 2, T-shaped rotating shaft 4 two ends are each passed through after adjacent L shaped plate 2 and are connected with an angular wheel 5, each L shaped plate 2 two angular wheels 5 adjoining intermesh.
In the present invention, L shaped plate 2 is formed by connecting by the straight plate of two pieces of isometric uniform thickness, a knuckle α is had between two blocks of straight plates, two blocks of straight plates are respectively arranged with an axis hole 21, two axis holes 21 with the bisectrix of knuckle α for axisymmetric, the connecting rod 42 that T-shaped rotating shaft 4 comprises rotatingshaft 41 and is vertically connected on rotatingshaft 41 mid point, the axis hole 21 that the two ends of rotatingshaft 41 are each passed through in adjacent L shaped plate 2 is connected with an angular wheel 5 afterwards, Placement, for be coaxially fixedly connected with, can adopt the conventional fastener methods such as screw, bolt or rivet.
In the present invention, the knuckle α=2 π/N between two blocks of straight plates of L shaped plate 2.
In the present invention, be provided with bearing 3 in the axis hole 21 in L shaped plate 2, bearing 3 is fixedly connected on rotatingshaft 41, to guarantee that the relative L shaped plate 2 of T-shaped rotating shaft 4 is that the internal diameter of its middle (center) bearing 3 is identical with the external diameter of the rotatingshaft 41 of T-shaped rotating shaft 4 without frictional rotation.
In the present invention, in order to ensure, connecting rod can around T-shaped rotating shaft 180 degree of free rotations, complete expansion-folding movement the process successfully completing rod member, node base 1 is provided with breach 11, the shape of breach 11, position respectively with connecting rod 42 want the shape of connecting rod and pivotal position to match.
In the present invention, connecting rod 42 being provided with the screw thread for being connected with rod member, being convenient to be connected with rod member.
Fig. 3 a---Fig. 3 f is depicted as node of the present invention and is applied to connection four rod members, namely when N=4, knuckle α=pi/2, form the process schematic that is synchronized with the movement of structure, wherein Fig. 3 a, Fig. 3 f are respectively the folded state of four rod members downwards, when upwards drawing in completely, Fig. 3 b is the synchronously downward motion state of four rod members, Fig. 3 c, Fig. 3 d be the central point of four rod members close to threshold state during same plane, Fig. 3 e is the synchronous motion states upwards of four rod members.
Below be schematically described the present invention and mode of execution thereof, this description does not have restricted, accompanying drawing 1---and shown in Fig. 3 is also one of embodiments of the present invention, and actual connected node is not limited to this.Such as, node of the present invention can connect many rod members arbitrarily, can the shape of concept transfer base according to actual needs, and adjusts the angle of articulation of angular wheel.Fig. 4, when Figure 5 shows that the present invention is respectively used to connection three (N=3), five rod member (N=5), the main body base of connected node and L shaped plate schematic diagram.Therefore, if others skilled in the art are not when departing from the invention aim, adopt the mode of structure similar to this technological scheme and embodiment, all should protection scope of the present invention be belonged to.
Because this connected node adopts angular wheel, make the rotatingshaft synchronous axial system engaged between two, effectively guarantee the rod member precise synchronization motion that each rotatingshaft connects, therefore this category node can be applicable in deployable structure, especially relates to by revolute pair, cuts the Planar Mechanisms system that hinge formula unit etc. forms.
Claims (6)
1. guarantee the connected node that rod member is synchronized with the movement for one kind, it is characterized in that, this connected node comprises base (1), N number of L shaped plate (2), N number of T-shaped rotating shaft (4) and 2N angular wheel (5), wherein N be greater than 2 integer, described N number of L shaped plate (2) is centrosymmetric and is arranged on the one side of base (1), described T-shaped rotating shaft (4) is arranged between two adjacent L shaped plates (2), T-shaped rotating shaft (4) two ends are each passed through adjacent L shaped plate (2) and are connected with an angular wheel (5) afterwards, each L shaped plate (2) two angular wheels (5) adjoining intermesh.
2. according to claim 1ly guarantee the connected node that rod member is synchronized with the movement, it is characterized in that, described L shaped plate (2) is formed by connecting by two blocks of identical straight plates, a knuckle α is had between described two blocks of straight plates, two blocks of straight plates are respectively arranged with an axis hole (21), described two axis holes (21) with the bisectrix of knuckle α for axisymmetric, described T-shaped rotating shaft (4) comprises rotatingshaft (41) and is vertically connected on the connecting rod (42) on described rotatingshaft (41) mid point, the axis hole (21) that the two ends of rotatingshaft (41) are each passed through in adjacent L shaped plate (2) is connected with an angular wheel (5) afterwards.
3. according to claim 2ly guarantee the connected node that rod member is synchronized with the movement, it is characterized in that, the knuckle between two blocks of straight plates of described L shaped plate (2)
.
4. according to claim 2ly guarantee the connected node that rod member is synchronized with the movement, it is characterized in that, be provided with bearing (3) in described axis hole (21), described bearing (3) is fixedly connected on rotatingshaft (41).
5. according to claim 1 and 2ly guarantee the connected node that rod member is synchronized with the movement, it is characterized in that, described base (1) is provided with breach (11), the shape of described breach (11), position respectively with connecting rod (42) want the shape of connecting rod and pivotal position to match.
6. according to claim 2ly guarantee the connected node that rod member is synchronized with the movement, it is characterized in that, described connecting rod (42) being provided with the screw thread for being connected with rod member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210397273.5A CN102913604B (en) | 2012-10-18 | 2012-10-18 | Connection joint for ensuring synchronous movement of rod pieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210397273.5A CN102913604B (en) | 2012-10-18 | 2012-10-18 | Connection joint for ensuring synchronous movement of rod pieces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102913604A CN102913604A (en) | 2013-02-06 |
| CN102913604B true CN102913604B (en) | 2015-03-11 |
Family
ID=47612104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210397273.5A Expired - Fee Related CN102913604B (en) | 2012-10-18 | 2012-10-18 | Connection joint for ensuring synchronous movement of rod pieces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102913604B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110755243A (en) * | 2019-09-10 | 2020-02-07 | 赛夫 | Head massage device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2883894A (en) * | 1955-03-31 | 1959-04-28 | Tsuchikawa Takeo | Gear rolling machine |
| WO1997022817A1 (en) * | 1995-12-15 | 1997-06-26 | Sikorsky Aircraft Corporation | Method for fabricating a split path transmission providing equal torque splitting |
| CN101963206A (en) * | 2010-10-19 | 2011-02-02 | 华南理工大学 | Regular polygon axial distribution-based micro speed reducer |
| CN102535647A (en) * | 2012-02-06 | 2012-07-04 | 东南大学 | Eccentric node of unfoldable structure of pantograph |
| CN102633075A (en) * | 2012-04-18 | 2012-08-15 | 南京华德仓储设备制造有限公司 | Lifting mechanism for shuttling tool |
-
2012
- 2012-10-18 CN CN201210397273.5A patent/CN102913604B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2883894A (en) * | 1955-03-31 | 1959-04-28 | Tsuchikawa Takeo | Gear rolling machine |
| WO1997022817A1 (en) * | 1995-12-15 | 1997-06-26 | Sikorsky Aircraft Corporation | Method for fabricating a split path transmission providing equal torque splitting |
| CN101963206A (en) * | 2010-10-19 | 2011-02-02 | 华南理工大学 | Regular polygon axial distribution-based micro speed reducer |
| CN102535647A (en) * | 2012-02-06 | 2012-07-04 | 东南大学 | Eccentric node of unfoldable structure of pantograph |
| CN102633075A (en) * | 2012-04-18 | 2012-08-15 | 南京华德仓储设备制造有限公司 | Lifting mechanism for shuttling tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102913604A (en) | 2013-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109860972B (en) | Modularized extensible antenna mechanism based on symmetrical structure tetrahedron combination unit | |
| CN106346450B (en) | Three branch 3-freedom parallel mechanisms | |
| Fan et al. | Type synthesis of 2T2R, 1T2R and 2R parallel mechanisms | |
| CN201771947U (en) | Hinge structure | |
| CN102912852B (en) | Regular tetrahedral symmetrical deployable mechanism unit | |
| CN105508407A (en) | Prosthetic structure for multi-shaft hinge apparatus, multi-shaft hinge apparatus, and folding equipment | |
| CN105468091A (en) | Electronic equipment and connection device | |
| CN102673669B (en) | Polyhedral rolling mechanism | |
| CN103144106A (en) | Asymmetric parallel mechanism having three DOF (degrees of freedom) including two rotations and one movement | |
| JP6836665B2 (en) | Biaxial hinge mechanism used for mobile terminals and mobile terminals | |
| CN103738426A (en) | Dual-mode sixteen-rod rolling mechanism | |
| CN102303313A (en) | Asymmetrical completely-isotropic three-degree-of-freedom parallel connection robot mechanism | |
| CN102501243A (en) | Decoupling parallel robot mechanism with one rotational degree of freedom and two translational degrees of freedom | |
| CN106426094B (en) | A kind of four-freedom parallel mechanism | |
| CN102913604B (en) | Connection joint for ensuring synchronous movement of rod pieces | |
| CN104552280A (en) | Double-displacement double-rotation four-degree-of-freedom decoupling parallel mechanism | |
| CN103144097A (en) | Asymmetric parallel robot mechanism with two rotations and one movement | |
| CN202162805U (en) | Spherical surface rotation parallel mechanism having three degrees of freedom of decoupling | |
| CN205780585U (en) | Intersection cord clip | |
| CN106515890A (en) | Hexahedron moving robot | |
| CN2934422Y (en) | Glass curtain connecting claw | |
| CN103624559B (en) | A kind of two rotate full decoupled parallel institution | |
| CN104281206B (en) | A kind of electronic equipment | |
| CN204226417U (en) | Linking mechanism and electronic equipment | |
| CN104314968A (en) | Rotating shaft structure for notebook computer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20201018 |