CN204143702U - A kind of teaching aid for demonstrating vector correlation - Google Patents
A kind of teaching aid for demonstrating vector correlation Download PDFInfo
- Publication number
- CN204143702U CN204143702U CN201420599100.6U CN201420599100U CN204143702U CN 204143702 U CN204143702 U CN 204143702U CN 201420599100 U CN201420599100 U CN 201420599100U CN 204143702 U CN204143702 U CN 204143702U
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- China
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- slide block
- crank
- connecting rod
- light
- base
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Abstract
For demonstrating a teaching aid for vector correlation, it comprises base, crank base, crank, servomotor, light-emitting device, slide block, first connecting rod, fixing slide block, second connecting rod, roller and brace table; Base one end is provided with crank base and servomotor, and the other end is provided with brace table; Crank lower end is fixed on crank base by bearing and is also connected with servomotor by shaft coupling through crank base; Slide block is nested on crank; Hinge axis on one end of first connecting rod and slide block is hinged, and the other end is through the fixing slide block being arranged on brace table top; Hinge axis on one end of second connecting rod and slide block is hinged, and the other end and the roller shaft be arranged in brace table are hinged; End, the first connecting rod of slide block hinge axis are equipped with light-emitting device through fixing one end of slide block and the end of roller shaft.The utility model can demonstrate vector correlation effectively, not only vivid, and makes the correlated knowledge point of student's vector easier to understand.
Description
Technical field
The utility model relates to teaching aid technical field, specifically a kind of teaching aid for demonstrating vector correlation.
Background technology
In high school physics study, student's initial contact, to this concept of vector, in some physical quantity, should have numerical values recited (comprising relevant unit), have direction to determine completely again.General algebra rule is not followed in computing between this tittle, and follows special algorithm.Such as the physical quantity that displacement is such, such amount is called physics vector.At present, do not have a kind of teaching aid of very vivid displaying vector correlation, especially a kind of teaching aid demonstrating angular velocity and linear velocity and velocity composite isovector relation, Most students is for the relevant knowledge of vector and application indigestion and grasp.
Utility model content
In order to overcome above-mentioned technical matters, the utility model provides a kind of teaching aid for demonstrating angular velocity and linear velocity and velocity composite isovector relation.
The technical scheme in the invention for solving the technical problem is: a kind of teaching aid for demonstrating vector correlation, it is characterized in that, comprise base, crank base, crank, servomotor, light-emitting device, slide block, first connecting rod, fixing slide block, second connecting rod, roller and brace table; Described base is a rectangular parallelepiped platform, and one end is provided with crank base and servomotor, and the other end is provided with brace table, and described crank base and brace table leading flank and base leading flank are positioned on same vertical direction; Described crank lower end is fixed on crank base by bearing and is also connected with servomotor by shaft coupling through crank base, and crank moves under the driving of servomotor on the vertical direction of parallel plinth leading flank; Described slide block is nested on crank along crank axial free movement; One end and the hinge axis be arranged on slide block of described first connecting rod are hinged, and the other end is through the fixing slide block being arranged on brace table top, and first connecting rod is side-to-side movement in the horizontal direction under the drive of crank; One end of described second connecting rod and the hinge axis be arranged on slide block are hinged, the other end with to be arranged in brace table and the roller shaft that in the vertical direction freely moves up and down is hinged; End, the first connecting rod of slide block hinge axis are equipped with light-emitting device through fixing one end of slide block and the end of roller shaft.
Preferably, the leading flank of described brace table offers the T-slot of a vertical direction, and the degree of depth of described T-slot is greater than roller widths, and the width of T-slot is equal with roller diameter.
Preferably, described crank large end face place plane, described first connecting rod large end face place plane and described second connecting rod large end face place plane are parallel to each other.
Preferably, described light-emitting device comprises light emitting diode, battery and gauge tap, and described light emitting diode, battery and gauge tap are connected in series.
Preferably, slide block hinge axis end, first connecting rod adopt different colours respectively light emitting diode through the light emitting diode of the light-emitting device of fixing slide block one end and roller shaft end is arranged on described in.
Preferably, the described light emitting diode being arranged on the light-emitting device of slide block hinge axis end adopts red light emitting diodes, the described first connecting rod that is arranged on adopts yellow light-emitting diode through the light emitting diode of the light-emitting device of fixing slide block one end, described in be arranged on the light-emitting device of roller shaft end light emitting diode adopt blue LED.
The beneficial effects of the utility model are: after adopting said structure, the utility model can demonstrate the vector correlation of the relation of angular velocity and linear velocity and the synthesis of speed effectively, not only vivid, and make the correlated knowledge point of student's vector easier to understand.
Accompanying drawing explanation
Perspective view when Fig. 1 is the utility model expansion;
Fig. 2 is main TV structure schematic diagram of the present utility model;
Fig. 3 is plan structure schematic diagram of the present utility model;
Fig. 4 is the demonstration schematic diagram that the utility model carries out velocity composite;
Fig. 5 is the vector correlation figure of velocity composite described in the utility model;
In figure: 1 base, 2 crank bases, 3 cranks, 4 servomotors, 5 light-emitting devices, 6 slide blocks, 7 first connecting rods, 8 fixing slide block, 9 second connecting rods, 10 rollers, 11 brace tables.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by embodiment, and in conjunction with its accompanying drawing, the utility model is elaborated.Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present utility model.Of the present utility model open in order to simplify, hereinafter the parts of specific examples and setting are described.In addition, the utility model can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.It should be noted that parts illustrated in the accompanying drawings are not necessarily drawn in proportion.The utility model eliminates the description of known assemblies and treatment technology and process to avoid unnecessarily limiting the utility model.
As shown in Figure 1, Figure 2 and Figure 3, a kind of teaching aid for demonstrating vector correlation of the present utility model, it comprises base 1, crank base 2, crank 3, servomotor 4, light-emitting device 5, slide block 6, first connecting rod 7, fixing slide block 8, second connecting rod 9, roller 10 and brace table 11; Described base 1 is a rectangular parallelepiped platform, and one end is provided with crank base 2 and servomotor 4, and the other end is provided with brace table 11, and described crank base 2 and brace table 11 leading flank and base 1 leading flank are positioned on same vertical direction; Described crank 3 lower end is fixed on crank base 2 by bearing and is also connected with servomotor 4 by shaft coupling through after crank base 2, and crank 3 moves under the driving of servomotor 4 on the vertical direction of parallel plinth 1 leading flank; Described slide block 6 is nested on crank 3 along crank 3 axial free movement; One end and the hinge axis be arranged on slide block 6 of described first connecting rod 7 are hinged, the other end is through the fixing slide block 8 being arranged on brace table 11 top, fixing slide block 8 is provided with the through hole that first connecting rod is passed freely through, and first connecting rod 7 is side-to-side movement in the horizontal direction under the drive of crank 3; One end of described second connecting rod 9 and the hinge axis be arranged on slide block 6 are hinged, the other end with to be arranged in brace table 11 and roller 10 wheel shaft that in the vertical direction freely moves up and down is hinged; End, the first connecting rod 7 of slide block 6 hinge axis are equipped with light-emitting device 5 through fixing one end of slide block 8 and the end of roller 10 wheel shaft.
Preferably, the leading flank of described brace table 11 offers the T-slot for holding roller 10 of a vertical direction, the degree of depth of described T-slot is greater than roller 10 width, and the width of T-slot and roller 10 equal diameters, roller 10 can freely move up and down in T-slot.
Preferably, described crank 3 large end face place plane, described first connecting rod 7 large end face place plane and described second connecting rod 9 large end face place plane are parallel to each other, namely the plane of movement of crank 3, first connecting rod 7 and second connecting rod 9 is parallel to each other, and ensure that vector correlation demonstrating effect.
Preferably, described light-emitting device 5 comprises light emitting diode, battery and gauge tap, described light emitting diode, battery and gauge tap are connected in series, and described in be arranged on slide block 6 hinge axis end, first connecting rod 7 adopt different colours respectively light emitting diode through the light emitting diode of the light-emitting device 5 of fixing slide block 8 one end and roller 10 axle ends, enhance demonstrating effect.In order to make demonstrating effect more vivid, the described light emitting diode being arranged on the light-emitting device 5 of slide block 6 hinge axis end adopts red light emitting diodes, the described first connecting rod 7 of being arranged on adopts yellow light-emitting diode through the light emitting diode of the light-emitting device 5 of fixing slide block 8 one end, described in be arranged on the light-emitting device 5 of roller 10 axle ends light emitting diode adopt blue LED.
During use, rotated with a fixed angular speed by servomotor 4 driving crank 3, allow the movement velocity of observation of students three light-emitting devices 5 and movement locus.As shown in Figure 4 and Figure 5, slide block can slide along crank, and first connecting rod is along tangential movement, and when servomotor rotates with certain angular velocity omega, roller is with at the uniform velocity V
emove upward along vertical chute.
Now, the angular velocity of existence and linear velocity relation:
ω
BE＝V
E/OE,V
B＝ω
BE*OB，ω＝V
E/OB
The velocity composite relation existed:
V
D＝V
E+V
B
Student by observation three light-emitting devices, sets up the kinematic relation of three light-emitting devices in conjunction with velocity composite knowledge point, thus understands angular velocity and the relation of linear velocity and the compositive relation of speed, understands vector correlation knowledge point further.
The above is preferred implementation of the present utility model; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also make some improvements and modifications, these improvements and modifications are also regarded as protection domain of the present utility model.
Claims (6)
1. for demonstrating a teaching aid for vector correlation, it is characterized in that, comprising base, crank base, crank, servomotor, light-emitting device, slide block, first connecting rod, fixing slide block, second connecting rod, roller and brace table; Described base is a rectangular parallelepiped platform, and one end is provided with crank base and servomotor, and the other end is provided with brace table, and the leading flank of described crank base and brace table leading flank and base is positioned on same vertical direction; Described crank lower end is fixed on crank base by bearing and is also connected with servomotor by shaft coupling through crank base, and crank moves under the driving of servomotor on the vertical direction of parallel plinth leading flank; Described slide block is nested on crank along crank axial free movement; One end and the hinge axis be arranged on slide block of described first connecting rod are hinged, and the other end is through the fixing slide block being arranged on brace table top, and first connecting rod is side-to-side movement in the horizontal direction under the drive of crank; One end of described second connecting rod and the hinge axis be arranged on slide block are hinged, the other end with to be arranged in brace table and the roller shaft that in the vertical direction freely moves up and down is hinged; End, the first connecting rod of slide block hinge axis are equipped with light-emitting device through fixing one end of slide block and the end of roller shaft.
2. a kind of teaching aid for demonstrating vector correlation according to claim 1, is characterized in that, the leading flank of described brace table offers the T-slot of a vertical direction, and the degree of depth of described T-slot is greater than roller widths, and the width of T-slot is equal with roller diameter.
3. a kind of teaching aid for demonstrating vector correlation according to claim 1, is characterized in that, described crank large end face place plane, described first connecting rod large end face place plane and described second connecting rod large end face place plane are parallel to each other.
4. a kind of teaching aid for demonstrating vector correlation according to any one of claims 1 to 3, it is characterized in that, described light-emitting device comprises light emitting diode, battery and gauge tap, and described light emitting diode, battery and gauge tap are connected in series.
5. a kind of teaching aid for demonstrating vector correlation according to claim 4, it is characterized in that, described in be arranged on slide block hinge axis end, first connecting rod adopt different colours respectively light emitting diode through the light emitting diode of the light-emitting device of fixing slide block one end and roller shaft end.
6. a kind of teaching aid for demonstrating vector correlation according to claim 5, it is characterized in that, the described light emitting diode being arranged on the light-emitting device of slide block hinge axis end adopts red light emitting diodes, the described first connecting rod that is arranged on adopts yellow light-emitting diode through the light emitting diode of the light-emitting device of fixing slide block one end, described in be arranged on the light-emitting device of roller shaft end light emitting diode adopt blue LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420599100.6U CN204143702U (en) | 2014-10-16 | 2014-10-16 | A kind of teaching aid for demonstrating vector correlation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420599100.6U CN204143702U (en) | 2014-10-16 | 2014-10-16 | A kind of teaching aid for demonstrating vector correlation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204143702U true CN204143702U (en) | 2015-02-04 |
Family
ID=52420374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420599100.6U Withdrawn - After Issue CN204143702U (en) | 2014-10-16 | 2014-10-16 | A kind of teaching aid for demonstrating vector correlation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204143702U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240565A (en) * | 2014-10-16 | 2014-12-24 | 济南大学 | Teaching aid for demonstrating vector relation |
-
2014
- 2014-10-16 CN CN201420599100.6U patent/CN204143702U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240565A (en) * | 2014-10-16 | 2014-12-24 | 济南大学 | Teaching aid for demonstrating vector relation |
| CN104240565B (en) * | 2014-10-16 | 2016-08-24 | 济南大学 | A kind of teaching aid for demonstrating vector correlation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150204 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |