CN202230648U - Damping vibration curve recorder in different mediums - Google Patents
Damping vibration curve recorder in different mediums Download PDFInfo
- Publication number
- CN202230648U CN202230648U CN2011203693051U CN201120369305U CN202230648U CN 202230648 U CN202230648 U CN 202230648U CN 2011203693051 U CN2011203693051 U CN 2011203693051U CN 201120369305 U CN201120369305 U CN 201120369305U CN 202230648 U CN202230648 U CN 202230648U
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- recording
- rectangular frame
- fixed
- vibrating object
- rotation axis
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Abstract
The utility model discloses a damping vibration curve recorder in different mediums. The damping vibration curve recorder includes a spring, a vibrating object, and a rectangular frame. The damping vibration curve recorder is characterized in that the middle of a bottom plate of the rectangular frame is provided with a speed regulation motor; a main shaft of the speed regulation motor is connected with a rotating shaft; an upper end of the rotating shaft is fixed on an upper frame of the rectangular frame via a bearing; the rotating shaft is fixed with a rotating cylinder; one side of the rotating shaft is provided with a driven shaft which is arranged in parallel with the rotating shaft; the driven shaft is fixed with a reel; the reel is wound with a recording paper; a pulling end of the recording paper is fixed on the rotating cylinder; the vibrating object is fixed with a recording pen; and a pen head of the recording pen contacts the recording paper on the rotating cylinder. The recorder not only can qualitatively observe, quantitatively analyze and access the demonstration test results, but also can analyze the different changes of damping vibration curves in different mediums. Besides, the recorder is simple in structure and is easy to operate, thus further raising the learning interests of students and improving the thinking of students.
Description
Technical field
The utility model relates to a kind of improvement of damped vibration apparatus for demonstrating, belongs to the physics teaching teaching aid, the damped vibration chart recording instrument in specifically a kind of different medium.
Background technology
" vibration " is the part of senior middle school physics teaching, comprises damped vibration, forced vibration, synchronous vibration.Wherein damped vibration is meant that the vibrating object with certain amplitude overcomes resistance of medium and work done when in medium, vibrating, consumed energy, thus amplitude is diminished gradually, the vibration that finally stops.In physics teaching, usually the demonstration teaching aid of vibration teaching only is oral account, is not easy to let students understand.Can know through retrieval,, comprise bracing frame, spring, vibrating object also relevant for the report of vibration demonstration device; Vibrating object through spring be lifted on bracing frame below, in air, vibrate, under the resistance of air dielectric; Amplitude reduces gradually, until stopping.The deficiency of this apparatus for demonstrating is and can only watches qualitatively, can not quantitative test, and can not access demonstration result.
Summary of the invention
The purpose of the utility model is to provide a kind of and can not only watches qualitatively, and analysis that can also be quantitative, also can access demonstration test the damped vibration chart recording instrument in result's the different medium.
For reaching above purpose, the technical scheme that the utility model adopted is: the damped vibration chart recording instrument in this different medium comprises spring, vibrating object and rectangular frame; The upper end of spring is hung in the upper ledge one end inboard of rectangular frame, and the lower end of spring connects goes up vibrating object, it is characterized in that: the base plate middle part at rectangular frame is provided with buncher; The main shaft of buncher connects through shaft coupling goes up rotation axis; On the upper ledge of rectangular frame, rotation axis is parallel under static state with spring through bearing fixing in the upper end of rotation axis, is fixing rotating cylinder on the rotation axis; Side at rotation axis is provided with the driven axle that is parallel to rotation axis; Fixing coiling on driven axle is wound with recording chart on reel, the pulling end of recording chart is fixed on the rotating cylinder; Fixing recording pointer on the vibrating object, the nib of recording pointer is touched the recording chart on the rotating cylinder.
The utility model is also implemented through following measure: the upper and lower end of described driven axle is provided with corresponding bearing.
Described vibrating object stretches in the cartridge; When vibrating object is made Damped Vibration Experiment in liquid mediums; Medium in the replaceable cartridge is made different damped vibration curves thereby can observe vibrating object in air, in the liquid of variable concentrations.
The rotating speed of described buncher can be adjusted, thereby avoids the oscillating curve of vibrating object to overlap, and simultaneously, can calculate the cycle and the variation thereof of oscillating curve according to the velocity gauge of buncher.
The beneficial effect of the utility model is: compare with present damped vibration apparatus for demonstrating; Can not only watch qualitatively; And analysis that can also be quantitative, also can access demonstration test the result, can also analyze the difference of the damped vibration curvilinear motion in the different medium, and simple in structure, easy to operate; Can further improve students'interest in learning, improve student's thinking.
Description of drawings
Fig. 1 cuts open synoptic diagram for the structure forward sight office of the utility model.
Among the figure: 1, spring; 2, vibrating object; 3, rectangular frame; 4, buncher; 5, shaft coupling; 6, rotation axis; 7,7 ', bearing; 8, driven axle; 9, reel; 10, recording chart; 11, rotating cylinder; 12, recording pointer; 13, cartridge.
Embodiment
Make the utility model with reference to Fig. 1.Damped vibration chart recording instrument in this different medium comprises spring 1, vibrating object 2 and rectangular frame 3, and the upper end of spring 1 is hung in the upper ledge one end inboard of rectangular frame 3; The lower end of spring 1 connects goes up vibrating object 2; It is characterized in that: the base plate middle part at rectangular frame 3 is provided with buncher 4, and the main shaft of buncher 4 connects through shaft coupling 5 goes up rotation axis 6, and the upper end of rotation axis 6 is fixed on the upper ledge of rectangular frame 3 through bearing 7; Rotation axis 6 is parallel under static state with spring 1; Rotating cylinder 11 on fixing on the rotation axis 6 is provided with the driven axle 8 that is parallel to rotation axis 6 in a side of rotation axis 6, fixing coiling 9 on driven axle 8; On reel 9, be wound with recording chart 10; The pulling end of recording chart 10 is fixed on the rotating cylinder 11, is fixing recording pointer 12 on the vibrating object 2, and the nib of recording pointer 12 is touched the recording chart 10 on the rotating cylinder 11.When spring 1 is vertically vibrated; 2 of vibrating objects are done upper and lower motion; Also start buncher 4 this moment simultaneously; Rotating cylinder 11 drives recording chart 10 and rotates, and 12 of the recording pointers on the vibrating object 2 mark the change curve that amplitude reduces with time of vibration gradually on recording chart 10, thereby reach purpose objective, the quantitative test damped vibration.
Further improvement as the utility model: the upper and lower end of described driven axle 8 be provided with corresponding bearing 7 ', through corresponding bearing 7 ' be fixed on the rectangular frame 3.
Described vibrating object 2 stretches in the cartridge 13; When vibrating object 2 is made Damped Vibration Experiment in liquid mediums; Medium in the replaceable cartridge 13 is made different damped vibration curves thereby can observe vibrating object 2 in air, in the liquid of variable concentrations.
The rotating speed of described buncher 4 can be adjusted, thereby avoids the oscillating curve of vibrating object 2 to overlap, and simultaneously, can calculate the cycle and the variation thereof of oscillating curve according to the velocity gauge of buncher 4.
Claims (3)
1. the damped vibration chart recording instrument in the different medium; Comprise spring (1), vibrating object (2) and rectangular frame (3); The upper end of spring (1) is hung in the upper ledge one end inboard of rectangular frame (3); The lower end of spring (1) connects goes up vibrating object (2), it is characterized in that: the base plate middle part at rectangular frame (3) is provided with buncher (4), and the main shaft of buncher (4) is through rotation axis (6) in shaft coupling (5) connection; The upper end of rotation axis (6) is fixed on the upper ledge of rectangular frame (3) through bearing (7); Go up the fixing rotating cylinder (11) of going up at rotation axis (6), be provided with the driven axle (8) that is parallel to rotation axis (6), go up fixedly coiling (9) at driven axle (8) in a side of rotation axis (6); On reel (9), be wound with recording chart (10); The pulling end of recording chart (10) is fixed on the rotating cylinder (11), goes up the fixing recording pointer (12) of going up at vibrating object (2), and the nib of recording pointer (12) is touched the recording chart (10) on the rotating cylinder (11).
2. the damped vibration chart recording instrument in the different medium according to claim 1 is characterized in that: the upper and lower end of described driven axle (8) is provided with corresponding bearing (7 '), is fixed on the rectangular frame (3) through corresponding bearing (7 ').
3. the damped vibration chart recording instrument in the different medium according to claim 1 is characterized in that: described vibrating object (2) stretches in the cartridge (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203693051U CN202230648U (en) | 2011-10-07 | 2011-10-07 | Damping vibration curve recorder in different mediums |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203693051U CN202230648U (en) | 2011-10-07 | 2011-10-07 | Damping vibration curve recorder in different mediums |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202230648U true CN202230648U (en) | 2012-05-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203693051U Expired - Fee Related CN202230648U (en) | 2011-10-07 | 2011-10-07 | Damping vibration curve recorder in different mediums |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202230648U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103632591A (en) * | 2013-11-29 | 2014-03-12 | 天津工业大学 | Comprehensive tester for mechanical vibration of single-DOF system |
| CN103837224A (en) * | 2014-03-06 | 2014-06-04 | 鞍钢股份有限公司 | Simple amplitude measuring device and using method thereof |
-
2011
- 2011-10-07 CN CN2011203693051U patent/CN202230648U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103632591A (en) * | 2013-11-29 | 2014-03-12 | 天津工业大学 | Comprehensive tester for mechanical vibration of single-DOF system |
| CN103837224A (en) * | 2014-03-06 | 2014-06-04 | 鞍钢股份有限公司 | Simple amplitude measuring device and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120523 Termination date: 20121007 |