CN104575228A - Connecting rod mechanism experimental table with motion uncertainty - Google Patents
Connecting rod mechanism experimental table with motion uncertainty Download PDFInfo
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- CN104575228A CN104575228A CN201410718089.5A CN201410718089A CN104575228A CN 104575228 A CN104575228 A CN 104575228A CN 201410718089 A CN201410718089 A CN 201410718089A CN 104575228 A CN104575228 A CN 104575228A
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- motor
- connecting rod
- motion
- controlled
- linkage assembly
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
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- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to a connecting rod mechanism experimental table with motion uncertainty. The whole experimental table is shown in a figure 1, wherein a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod are sequentially connected through hinges; the first connecting rod is connected with a first controlled motor through a shaft coupler and is driven by the first controlled motor; the fourth connecting rod is connected with a second controlled motor through a flexible cross-shaped universal shaft coupler and a gear and is driven by the second controlled motor; a point A is fixed; a point E is positioned on a sliding block; a sliding block E can do reciprocation motion on a guide rail; rotation speed and rotation angles of the first motor and the second motor can be measured by a first optical encoder and a second optical encoder and the first motor and the second motor are controlled by a control unit MPU to rotate and stop; phase difference of the two motors is adjusted, so that the input control of original motive parts is realized; moreover, because of low cost and simple structure, the connecting rod mechanism experimental table is applied to research on teaching and stochastic motion generation.
Description
Technical field:
The present invention relates to the uncertain linkage assembly experiment table of a kind of motion, belong to mechanical principle technical field.
Background technology:
Conventional planar linkage mechanism comprises lanar four rod mechanism: crank and rocker mechanism, double-crank mechanism, double rocker mechanism and their evolution forms and multi-connecting-rod mechanism, it is not only used in numerous industrial and agricultural machinery and engineering machinery and is used widely, and at the development mechanism of such as artificial satellite solar panels, the gear train of mechanical arm, there is application the aspects such as human body artificial limb.
Therefore in the teaching such as mechanical principle, design, be considered as key content, and all linkage assemblys all need to have the motion determined, to meet the designing requirement of certain movement rule and movement locus.But the shortcomings such as established product has dismounting inconvenience, complex structure, beyond one's depth, thus have that cost is low, structure simple, be convenient to realize planar linkage mechanism portion determines the important role of the uncertain linkage assembly experiment table of the motion of motion demonstrating and explanation in rote teaching test.
Summary of the invention:
The technical problem to be solved in the present invention is to provide a kind of experiment table that can realize the demonstration of planar linkage mechanism indefinite motion, and by control realization by the uncertain motion to determining.The present invention solves the problems of the technologies described above by the following technical solutions: first connecting rod, second connecting rod, third connecting rod are connected with hinge successively with double leval jib, first connecting rod is connected with the first controlled motor by shaft coupling, driven by the first controlled motor, double leval jib is connected with second controlled motor by scalable cross universal coupling and gear, driven by the second controlled motor, wherein, A point is fixed, E point is on slide block, and slide block E can move reciprocatingly on guide rail; The rotating speed of the first motor and the second motor and corner are measured by the first optical encoder and the second optical encoder, rotation and the stopping of the first motor and the second motor is controlled by control module MPU, and adjust the phase differential of two motors, realize the control of driving link input.Its driving link number of linkage assembly of the uncertain linkage assembly experiment table of the present invention's campaign is less than the number of degrees of freedom, of mechanism, at motion process without the characteristics of motion determined and track, in conjunction with the 3rd driven by motor screw mandrel, slide block is fixed, the fortune merit this linkage assembly being had determine, with lower cost and the application of simple structure with in imparting knowledge to students and producing the research of random motion.
Accompanying drawing explanation
Fig. 1: the structural representation of the uncertain linkage assembly experiment table that moves.
Fig. 2: the mechanism principle figure of the uncertain linkage assembly experiment table that moves.
Fig. 3: the fundamental diagram of the uncertain linkage assembly experiment table that moves.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
First connecting rod 18 of the present invention, second connecting rod 17, third connecting rod 14 are connected with hinge successively with double leval jib 15, the first axle 20 that first connecting rod 18 is supported by diaxon bearing 19,21 by shaft coupling is connected with the first controlled motor 22, driven by the first motor 22, third connecting rod 14 is by scalable cross universal coupling 9, gear 3,4,7, supported by bearing seat 2,8 and be connected with second controlled motor 1, driven by the second motor 1, wherein, A point is fixed, E point is on slide block 16, and slide block 16 can move reciprocatingly along guide rail 11; The rotating speed of the first controlled motor 22 and the second controlled motor 1 and corner are measured by the first optical encoder 23 and the second optical encoder 6, rotation and the stopping of the first motor 22 and the second motor 1 is controlled by control module MPU, and adjust the phase differential of two motors, realize the control of driving link input.
As shown in Figure 1, first controlled motor 22 and the second controlled motor 1 drive first connecting rod 18 and double leval jib 15 respectively, the rotating speed of first connecting rod 18 and third connecting rod 14 can independently control, slide block 16 can move left and right, 3rd motor 10 can drive platform 12 by screw mandrel, and platform 12 can be connected by bolt 13 and slide block 16; When slide block 16 is separated with platform 12, when first connecting rod 18 and double leval jib 15 are driven by the first motor 22 and the second motor 1 respectively, the driving link number of this mechanism is less than number of degrees of freedom, and the motion of second connecting rod 17, double leval jib 14 and slide block 16 is uncertain; When the 3rd motor 10 drives platform 12 to be fixed by slide block 16, first connecting rod 18 and double leval jib 15 are driven by the first motor 22 and the second motor 1 respectively, the driving link number of this mechanism equals number of degrees of freedom, second connecting rod 17 and third connecting rod 14 are with certain regular movement, control disconnection first motor 22 or the second motor 1, mechanism will carry out uncertain motion again.
Claims (2)
1. the present invention relates to the uncertain linkage assembly experiment table of a kind of motion, testing table entirety as shown in Figure 1.First connecting rod, second connecting rod, third connecting rod are connected with hinge successively with double leval jib, first connecting rod is connected with the first controlled motor by shaft coupling, driven by the first controlled motor, double leval jib is connected with second controlled motor by scalable cross universal coupling and gear, driven by the second controlled motor, wherein, A point is fixed, E point is on slide block, and slide block E can move reciprocatingly on guide rail; The rotating speed of the first motor and the second motor and corner are measured by the first optical encoder and the second optical encoder, rotation and the stopping of the first motor and the second motor is controlled by control module MPU, and adjust the phase differential of two motors, realize the control of driving link input.
2. the uncertain linkage assembly experiment table of one motion according to claim 1, its driving link number of linkage assembly of the uncertain linkage assembly experiment table of the present invention's campaign is less than the number of degrees of freedom, of mechanism, at motion process without the characteristics of motion determined and track, in conjunction with the 3rd driven by motor screw mandrel, slide block is fixed, the fortune merit this linkage assembly being had determine, with lower cost and the application of simple structure with in imparting knowledge to students and producing the research of random motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410718089.5A CN104575228A (en) | 2014-12-02 | 2014-12-02 | Connecting rod mechanism experimental table with motion uncertainty |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410718089.5A CN104575228A (en) | 2014-12-02 | 2014-12-02 | Connecting rod mechanism experimental table with motion uncertainty |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104575228A true CN104575228A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410718089.5A Pending CN104575228A (en) | 2014-12-02 | 2014-12-02 | Connecting rod mechanism experimental table with motion uncertainty |
Country Status (1)
| Country | Link |
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| CN (1) | CN104575228A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421725A (en) * | 2017-06-06 | 2017-12-01 | 中南大学 | A kind of multi-DOF platform for testing electronic key |
| CN107871434A (en) * | 2016-09-28 | 2018-04-03 | 广西大学 | A kind of motion teaching research experimental provision |
| CN107871435A (en) * | 2016-09-28 | 2018-04-03 | 广西大学 | A kind of six bars become input linkage experimental bench |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201984710U (en) * | 2011-03-18 | 2011-09-21 | 孔宪彬 | Demonstrating teaching device for hinge four-bar mechanism |
| CN202058361U (en) * | 2011-05-10 | 2011-11-30 | 湖州师范学院 | Hinging four-bar mechanism connecting rod curve drawing teaching instrument |
| CN202075903U (en) * | 2011-05-10 | 2011-12-14 | 湖州师范学院 | Hinge four-bar mechanism teaching instrument |
| CN202905003U (en) * | 2012-11-20 | 2013-04-24 | 燕金华 | Link mechanism demonstration teaching aid |
-
2014
- 2014-12-02 CN CN201410718089.5A patent/CN104575228A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201984710U (en) * | 2011-03-18 | 2011-09-21 | 孔宪彬 | Demonstrating teaching device for hinge four-bar mechanism |
| CN202058361U (en) * | 2011-05-10 | 2011-11-30 | 湖州师范学院 | Hinging four-bar mechanism connecting rod curve drawing teaching instrument |
| CN202075903U (en) * | 2011-05-10 | 2011-12-14 | 湖州师范学院 | Hinge four-bar mechanism teaching instrument |
| CN202905003U (en) * | 2012-11-20 | 2013-04-24 | 燕金华 | Link mechanism demonstration teaching aid |
Non-Patent Citations (1)
| Title |
|---|
| 张铁异 等: "基于UG的多功能变尺寸连杆机构实验台设计", 《轻工科技》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107871434A (en) * | 2016-09-28 | 2018-04-03 | 广西大学 | A kind of motion teaching research experimental provision |
| CN107871435A (en) * | 2016-09-28 | 2018-04-03 | 广西大学 | A kind of six bars become input linkage experimental bench |
| CN107421725A (en) * | 2017-06-06 | 2017-12-01 | 中南大学 | A kind of multi-DOF platform for testing electronic key |
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Application publication date: 20150429 |
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