CN202041379U - Experimental platform for multi-configuration planar link rod mechanisms - Google Patents
Experimental platform for multi-configuration planar link rod mechanisms Download PDFInfo
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- CN202041379U CN202041379U CN2011201193770U CN201120119377U CN202041379U CN 202041379 U CN202041379 U CN 202041379U CN 2011201193770 U CN2011201193770 U CN 2011201193770U CN 201120119377 U CN201120119377 U CN 201120119377U CN 202041379 U CN202041379 U CN 202041379U
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Abstract
The utility model relates to an experimental platform for multi-configuration planar link rod mechanisms, which has novel design and simple structure, reasonably utilizes the combined-type planar link rod mechanism configurations and better achieves the design, motion demonstration, characteristic study and the like of the planar link rod mechanisms of multiple configurations on one experimental platform at a time. The planar link rod mechanism configuration structure makes full use of the space of the experimental platform, and the assignment of the mechanism configuration is effectively increased; particularly, the experimental platform brings convenience to carrying out experiments with respect to the overlapping of the planar link rod mechanisms of multiple configurations, the motion and dynamics characteristics of multiple mechanisms and the like, and has important significance for a learner to master the relevant knowledge of the planar link rod mechanisms; and simultaneously, a researcher can verify the theories in the planar link rod mechanism through the platform. The platform has the characteristics of convenience for manufacture and good application effect, and is convenient to popularize and apply.
Description
Technical field
The utility model relates to a kind of linkage assembly experiment porch, specifically, relates to a kind of multi-configuration planar linkage mechanism experiment porch.
Background technology
Planar linkage mechanism is an a kind of application mechanism very widely, is an important topic of theory of mechanisms research to its design and analysis always.The various complexity of planar linkage mechanism configuration, present linkage assembly experiment porch is primarily aimed at the planar linkage mechanism of a certain configuration, is used for the experiment of cognitive type and demonstration mode, only is fit to the ABC that the beginner learns planar linkage mechanism.When planar linkage mechanism design innovation and researcher are studied characteristics such as multi-configuration motion of mechanism, dynamics, can meet difficulty.A kind of controlled planes five-rod testing table that can provide experimental basis for any given motion, can accurately realize the arbitrary motion track is disclosed in the Chinese patent 200820190530.7.This testing table only can be tested at planar five-bar mechanism, and is powerless for the test of the mechanism of configurations such as four-bar mechanism, multi-bar linkage.Described a kind of plane mechanism testing table in the Chinese patent 03248164.0, it is primarily aimed at design, assembly unit, the motion demonstrating of multiple plane mechanism, provides a kind of desirable teaching aid for the student of mechanical subject learns plane mechanism knowledge.This testing table can only can carry out motion demonstrating to four-bar linkage during still specific to planar linkage mechanism at multiple plane mechanism, can not adapt to the The Characteristic Study of the planar linkage mechanism of multiple configuration.Dynamic test, the designed teaching experiment mechanism of a kind of effective analogue crank, guide rod, slide block movement are disclosed in the Chinese patent 01257105.9.This experiment mechanism can not satisfy on the experiment table that coexists and carry out the design of multiple configuration planar linkage mechanism, motion demonstrating, characteristic research only at slider-crank mechanism and crank guide rod mechanism.
The utility model content
For overcome the mechanism that exists in the prior art single, can not satisfy on the experiment porch that coexists and carry out deficiencies such as the design of multiple configuration planar linkage mechanism, motion demonstrating, characteristic research.The utility model provides a kind of multi-configuration planar linkage mechanism experiment porch, and this experiment porch is reasonable in design, and is simple in structure, performances such as the kinematics of research institution, dynamics easily, and effect is good, is convenient to promote the use of.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: experiment porch comprises: panel, support, thick bar, thin bar, moving platform, pin shaft hole, bearing pin, elongate rod; Described panel is fixedly mounted on the stand, the through hole that at least two component cloth are arranged is set on the panel, every group of through hole is made up of pin shaft hole and a plurality of screw hole, following and the bearing pin that driving motor is installed in panel is connected, support is fixedly mounted on the panel and is connected with thick bar with screw by bearing pin, and thick bar is connected with screw with carefully using bearing pin between bar or elongate rod or the moving platform; The pin shaft hole that is provided with on the central through hole at bracket tab position and the panel is on same axis.
Described support is " several " word shape, and place, both sides of the edge, lower end is symmetrically arranged with threaded hole, is used for support is fixed on panel; The boss center position of support is provided with through hole, is used for the location and supports bearing pin.
Described thick bar is the unequal straight-bar spares in both ends, end edge is to be the semicircular arc of diameter with the straight-bar width, the circle centre position of semicircular arc is provided with through hole, wherein bigger end through hole both sides respectively are equipped with a threaded hole makes thick bar fixedly connected with bearing pin, thick bar cooperates with bearing pin and is used to transmit Motor torque, and the other end of thick bar is connected with thin bar.
The flat bar rod member that described thin bar is the halves symmetry, the center section hollow out, two ends are equipped with round tube hole and bearing pin is used, and the through hole both sides respectively are provided with a threaded hole, are used for thin bar is fixedlyed connected the transmission moment of torsion with bearing pin.In order to study the characteristic of mechanism under the different-stiffness, the present invention is equipped with the refill-unit of a thin bar, and is the same with thin bar structure, and rigidity is little.
Described elongate rod is the stock that both ends are semicircular arc, and the circle centre position of semicircular arc is provided with round tube hole, and the through hole both sides respectively are provided with a threaded hole, is used for elongate rod and the bearing pin transmission moment of torsion that is fixedly connected.The center section hollow out of elongate rod.
Described moving platform is the equilateral triangle thin plate, is provided with some apertures according to the center extension, is respectively arranged with round tube hole on three angles, and the through hole internal fixation has neck bush to cooperate with bearing pin; Set aperture is used for sensor installation and makes things convenient for the later stage to gather experimental data.
A kind of multi-configuration planar linkage mechanism of the utility model experiment porch, novel in design, rationally utilized combined flat surface linkage assembly configuration, effectively solved existing in prior technology mechanism single, can not satisfy and on an experiment porch, carry out simultaneously problems such as the design of multiple configuration planar linkage mechanism, motion demonstrating, characteristic research.Its beneficial effect is: planar linkage mechanism configuration structure has made full use of the experiment porch volumetric spaces, can effectively increase mechanism configuration and arrange, and makes the planar linkage mechanism type be improved; As the six-bar mechanism of five bars of the four-bar mechanism of multiple configuration, multiple configuration, multiple configuration and the multi-bar linkage of multiple configuration; Especially bring convenience in the experiment of carrying out aspects such as multiple configuration planar linkage mechanism overlap joint, various mechanism motion and dynamics, it is significant that the learner is grasped the planar linkage mechanism relevant knowledge, the theory during the researcher can learn by this platform validation planar linkage mechanism simultaneously.The utlity model has simple in structurely, easy to make, effect is good, is convenient to promote the use of.
Description of drawings
Below in conjunction with drawings and embodiments a kind of multi-configuration planar linkage mechanism of the utility model experiment porch is described in further detail.
Fig. 1 is the utility model multi-configuration planar linkage mechanism experiment porch structural representation.
Fig. 2 is the panel synoptic diagram of multi-configuration planar linkage mechanism experiment porch.
Fig. 3 is the thick bar synoptic diagram of multi-configuration planar linkage mechanism experiment porch.
Fig. 4 is the thin bar synoptic diagram of multi-configuration planar linkage mechanism experiment porch.
Fig. 5 is the elongate rod synoptic diagram of multi-configuration planar linkage mechanism experiment porch.
Fig. 6 is the moving platform synoptic diagram of the utility model multi-configuration planar linkage mechanism experiment porch.
Fig. 7 is the support synoptic diagram of the utility model multi-configuration planar linkage mechanism experiment porch.
Fig. 8 is the synoptic diagram of two-freedom three revolute pair redundancy parallel mechanisms.
Fig. 9 is the structural representation of planar five-bar mechanism.
Figure 10 is the structural representation of four-bar linkage.
Figure 11 is the structural representation of plane six bar mechanism.
Among the figure:
1. panel 2. supports 3. thick bar 4. thin bars
5. moving platform 6. pin shaft holes 7. bearing pins 8. elongate rod
Embodiment
The utility model multi-configuration planar linkage mechanism experiment porch is optimized the size of each member for each member of maximum using, can adapt to multiple complicated experiment conditions such as becoming rigidity, change gap, multiple configuration planar linkage mechanism research after the standardization.Can expand the usable range of this platform by changing the specific (special) requirements that member reaches the user separately.Be example explanation embodiment with planar three freedom three revolute pair parallel institutions, plane two-freedom three revolute pair redundancy parallel mechanisms, planar five-bar mechanism, four-bar linkage and watt type plane six bar mechanism below.
Embodiment 1
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 7, present embodiment is a kind of multi-configuration planar linkage mechanism experiment porch, comprises panel 1, support 2, thick bar 3, thin bar 4, moving platform 5, pin shaft hole 6, bearing pin 7, elongate rod 8 and part of standards part.Wherein, panel 1 is fixedly mounted on the stand, arrangement at least two group through holes are set on the panel 1, every group of through hole is made up of pin shaft hole 6 and a plurality of screw hole, following and the bearing pin 7 that driving motor is installed in panel 1 is connected, support 2 is fixedly mounted on the panel 1 and is connected with thick bar 3 with screw by bearing pin 7, uses bearing pin 7 and screw attachment between thick bar 3 and thin bar 4 or the moving platform 5; Place, both sides of the edge, support 2 lower end is symmetrically arranged with threaded hole, is used for support 2 is fixed on panel; The boss center position of support 2 is provided with through hole, is used for the location and supports bearing pin 7.Described thick bar 3 is the unequal straight-bar spares in both ends, end edge is to be the semicircular arc of diameter with the straight-bar width, the circle centre position of semicircular arc is provided with through hole, wherein bigger end through hole both sides respectively are equipped with a threaded hole makes thick bar 3 be fixedly connected with bearing pin 7, thick bar cooperates with bearing pin and is used to transmit Motor torque, and the other end of thick bar 3 is connected with thin bar 4.Described thin bar 4 is the flat bar rod member of halves symmetry, the center section hollow out, and two ends are equipped with round tube hole and bearing pin is used, and the through hole both sides respectively are provided with a threaded hole, are used for thin bar 4 and the bearing pin transmission moment of torsion that is fixedly connected; As Fig. 4.Described elongate rod 8 is the stock of semicircular arc for both ends, and the circle centre position of semicircular arc is provided with round tube hole, and the through hole both sides respectively are provided with a threaded hole, is used for elongate rod 8 connected with bearing pin transmitting moment of torsion.The center section hollow out of elongate rod 8; Referring to Fig. 5.Described moving platform 5 is the equilateral triangle thin plate, is provided with some apertures according to the center extension, is respectively arranged with round tube hole on three angles, and the through hole internal fixation has neck bush to cooperate with bearing pin; Set aperture is used for sensor installation and makes things convenient for the later stage to gather experimental data; As shown in Figure 6.
During installation, on panel 1, install and fix earlier three supports 2, the top of three supports 2 is installed three thick bars 3 respectively by bearing pin 7 and screw, the other end of three thick bars 3 is installed with screw by bearing pin with an end of three thin bars 4 respectively and is connected, three thin bar 4 other ends are connected with moving platform 5 respectively, form planar three freedom three revolute pair parallel institutions.Thin bar 4 among Fig. 1 is replaced by the littler refill-unit of rigidity, and the vibration acceleration of test key point can compare experiment to the magnitude of vibrations of mechanism.Change the lining of installing on the moving platform, can carry out the kinematic accuracy experiment, the movement locus and the range of movement of driven member are tested, on this basis, the motion of mechanism precision is estimated.On moving link, arrange foil gauge, can carry out dynamic stress experiment, can test member dynamic stress size by strainmeter, thus the mechanical gain of mechanism is estimated.
Embodiment 2
As shown in Figure 8, be present embodiment two-freedom three revolute pair redundancy parallel mechanisms, comprise panel 1, support 2, bearing pin 7, thick bar 3, thin bar 4, elongate rod 8.
At first on panel 1, three supports 2 are installed by screw retention, the top of three supports 2 is installed three thick bars 3 respectively by bearing pin 7 and screw, transmit moment of torsion and motion that motor provides, the top of three thick bars 3 is installed two thin bars 4 and an elongate rod 8 respectively, forms two-freedom three revolute pair redundancy parallel mechanisms.Present embodiment can carry out the redundant drive experiment, for Two-Degree-of-Freedom mechanism, adopts three motor-driven, determines the rational characteristics of motion, by redundant drive, realizes the experiment that overcomes of unusual bit-type.Elongate rod in the mechanism is replaced by the littler refill-unit of rigidity, is used to do the different-stiffness contrast vibration comparative analysis of mechanism down; Change the copper sheathing of different-thickness and can do motion of mechanism precision experiment under the different gap.
Embodiment 3
Fig. 9 has showed the embodiment that is used for planar five-bar mechanism, this embodiment can carry out the movement locus experiment according to the planar five-bar mechanism of version, movement locus to certain point on the plane motion member is drawn, and also can dead point, utmost point position and the pressure angle of mechanism be experimentized.In the structure of planar five-bar mechanism, comprise panel 1, support 2, bearing pin 7, thick bar 3, thin bar 4, elongate rod 8.
In the present embodiment, two supports 2 of fixed installation on panel 1, the top of two supports 2 is installed two thick bars 3 respectively by bearing pin and screw, transmit moment of torsion and motion that motor provides, the top of thick bar 3 has been installed a thin bar 4 and an elongate rod 8 respectively, thin bar 4 is connected with the top of elongate rod 8, has formed a kind of planar five-bar mechanism of version.Change the installation site of one of them support, the top of two thick bars 3 has been installed 4, two thin bars of two thin bars, 4 tops respectively and has been connected, and has just formed the planar five-bar mechanism of another kind of version.
Embodiment 4
Figure 10 is the embodiment of four-bar linkage, comprises panel 1, support 2, bearing pin 7, thick bar 3, thin bar 4, moving platform 5.In the present embodiment, the top of 2, two supports 2 of two supports of fixed installation is connected with moving platform 5 with a thick bar 3 respectively on panel 1 earlier, and the top of thick bar 3 is equipped with elongate rod 8, thick bar 3 is connected with the top of elongate rod 8, has formed a kind of four-bar linkage of version.Elongate rod among the embodiment 8 is changed the littler replacement bar of rigidity, can carry out the vibration characteristics experiment of mechanism under the different-stiffness.Can carry out simultaneously the range of movement experiment.
Embodiment 5
Figure 11 is the structure of plane six bar mechanism, comprises panel 1, support 2, bearing pin 7, thick bar 3, thin bar 4, moving platform 5.At first on panel 1, three supports 2 are installed by screw retention, two thick bars 3 are installed with bearing pin and screw in the top of two supports 2, moving platform 5 is installed on the top of another support, the top of two thick bars 3 is connected with two thin bars 4 respectively, two thin bars 4 link together with moving platform 5, have formed watt type plane six bar mechanism.The copper sheathing of changing different-thickness can carry out the kinematic accuracy experiment, and the motion of mechanism precision is estimated.Also can carry out the dynamic stress experiment,, thereby the mechanical gain of mechanism be estimated by strain-gauge test member dynamic stress size.
Claims (6)
1. multi-configuration planar linkage mechanism experiment porch, comprise panel, support, thick bar, thin bar, moving platform, pin shaft hole, bearing pin, elongate rod, it is characterized in that: described panel is fixedly mounted on the stand, the through hole that at least two component cloth are arranged is set on the panel, every group of through hole is made up of pin shaft hole and a plurality of screw hole, following and the bearing pin that driving motor is installed in panel is connected, support is fixedly mounted on the panel and is connected with thick bar with screw by bearing pin, and thick bar is connected with screw with carefully using bearing pin between bar or elongate rod or the moving platform; The pin shaft hole that is provided with on the central through hole at bracket tab position and the panel is on same axis.
2. multi-configuration planar linkage mechanism experiment porch according to claim 1, it is characterized in that: described support is " several " word shape, and place, both sides of the edge, lower end is symmetrically arranged with threaded hole, and the boss central through hole of support is used for the location and supports bearing pin.
3. multi-configuration planar linkage mechanism experiment porch according to claim 1, it is characterized in that: described thick bar is the unequal straight-bars in both ends, end edge is to be the semicircular arc of diameter with the straight-bar width, the circle centre position of semicircular arc is provided with through hole, bigger end through hole both sides respectively are equipped with a threaded hole makes thick bar fixedly connected with bearing pin, and the other end of thick bar is connected with thin bar.
4. multi-configuration planar linkage mechanism experiment porch according to claim 1 is characterized in that: the flat bar rod member that described thin bar is the halves symmetry, and the center section hollow out, two ends are equipped with round tube hole and cooperate with bearing pin.
5. multi-configuration planar linkage mechanism experiment porch according to claim 1 is characterized in that: described elongate rod is the stock that both ends are semicircular arc, and the circle centre position of semicircular arc is provided with round tube hole, and the through hole both sides respectively are provided with a threaded hole.
6. multi-configuration planar linkage mechanism experiment porch according to claim 1 is characterized in that: described moving platform is the equilateral triangle thin plate, is provided with some apertures according to the center extension, is respectively arranged with round tube hole on three angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201193770U CN202041379U (en) | 2011-04-21 | 2011-04-21 | Experimental platform for multi-configuration planar link rod mechanisms |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201193770U CN202041379U (en) | 2011-04-21 | 2011-04-21 | Experimental platform for multi-configuration planar link rod mechanisms |
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| CN202041379U true CN202041379U (en) | 2011-11-16 |
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| CN2011201193770U Expired - Fee Related CN202041379U (en) | 2011-04-21 | 2011-04-21 | Experimental platform for multi-configuration planar link rod mechanisms |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269653A (en) * | 2011-04-21 | 2011-12-07 | 西北工业大学 | Multi-structure planar linkage mechanism testing platform |
| CN103824503A (en) * | 2014-03-10 | 2014-05-28 | 武昌工学院 | Experimental device and method for mechanisms |
| CN104199346A (en) * | 2014-08-16 | 2014-12-10 | 丁云广 | Typical movement mechanism material object and movement parameter real-time synchronization interaction system |
| CN104200739A (en) * | 2014-09-01 | 2014-12-10 | 重庆交通大学 | Composite teaching tool of planar linkage and demonstrating control method thereof |
-
2011
- 2011-04-21 CN CN2011201193770U patent/CN202041379U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269653A (en) * | 2011-04-21 | 2011-12-07 | 西北工业大学 | Multi-structure planar linkage mechanism testing platform |
| CN102269653B (en) * | 2011-04-21 | 2013-06-26 | 西北工业大学 | Multi-structure planar linkage mechanism testing platform |
| CN103824503A (en) * | 2014-03-10 | 2014-05-28 | 武昌工学院 | Experimental device and method for mechanisms |
| CN103824503B (en) * | 2014-03-10 | 2017-12-12 | 武昌工学院 | The experimental provision and experimental method of a kind of theory of mechanisms |
| CN104199346A (en) * | 2014-08-16 | 2014-12-10 | 丁云广 | Typical movement mechanism material object and movement parameter real-time synchronization interaction system |
| CN104200739A (en) * | 2014-09-01 | 2014-12-10 | 重庆交通大学 | Composite teaching tool of planar linkage and demonstrating control method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20140421 |