CN205068936U - Frictional force display device - Google Patents
Frictional force display device Download PDFInfo
- Publication number
- CN205068936U CN205068936U CN201520888711.7U CN201520888711U CN205068936U CN 205068936 U CN205068936 U CN 205068936U CN 201520888711 U CN201520888711 U CN 201520888711U CN 205068936 U CN205068936 U CN 205068936U
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- raceway
- spin
- layer
- friction force
- exhibiting device
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Abstract
The utility model discloses a frictional force display device relates to physical teaching equipment field, and this frictional force display device's raceway and arc ramp separate into the part that four width equal through five baffles that are parallel to each other, and four parts bond through the binder respectively in proper order and have glass layer, wood board layer, rubber layer, cotton layer, and last four parts for the raceway of high platform are equipped with four columniform ball holes respectively, and the scale all is carved with to the both sides in raceway and arc ramp. It can roll down the spin respectively to go up the class hour teacher from spreading the high platform that the raceway that has glass layer, wood board layer, rubber layer, cotton layer corresponds, measure the spin again and stop to roll a little to high platform's distance, tell about different substance and have different coefficient of friction, and coefficient of friction is big more, and the spin is rolled just a little closely more from high platform's distance, and this frictional force display device is vivid, can understand and explain coefficient of friction knowledge directly.
Description
Technical field
The utility model relates to physics teaching apparatus field, particularly a kind of friction force exhibiting device.
Background technology
Junior physics starts learning foundation mechanics, also starts the concept introducing friction force.Students starts to learn different material and has different friction force, there has been the concept of friction factor.Present Physical Education Teacher is merely able to tell about different material by the form of video or picture and has different friction factor, is difficult to allow students participate in, cannot obtains the good successes achieved in teaching.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of friction force exhibiting device, a plateau and four raceways are set, glassy layer, plank layer, rubber layer, cotton layer is laid successively on raceway, spin is rolled down from plateau, explained the size of the friction factor of different material by the rolling distance measuring spin, reach the teaching efficiency of deepening student's impression.
For achieving the above object, the utility model provides following technical scheme: a kind of friction force exhibiting device, it is characterized in that: described friction force exhibiting device comprises plateau, arc ramp, raceway, spin, raceway and arc ramp are divided into the equal part of four width by the baffle plate that five are parallel to each other, four parts are bonded with glassy layer respectively by cementing agent successively, plank layer, rubber layer, cotton layer, plateau, arc ramp, raceway, baffle plate is monolithic construction, plateau is respectively equipped with four columniform ball relative to four of raceway parts, scale is all carved with in the both sides in raceway and arc ramp.
Preferably, described plateau, arc ramp, raceway, baffle plate are by cast iron manufacture, and surface is brushed with rust protection paint.
Preferably, described spin is manufactured by stainless steel.
Preferably, the distance between described two adjacent baffle plates is greater than the diameter 3mm of spin.
Preferably, the diameter of described ball is less than the diameter of spin.
The beneficial effect of above technical scheme is adopted to be: the raceway of this friction force exhibiting device and arc ramp are divided into the equal part of four width by the baffle plate that five are parallel to each other, four parts are bonded with glassy layer, plank layer, rubber layer, cotton layer respectively by cementing agent successively, plateau is respectively equipped with four columniform ball relative to four of raceway parts, and scale is all carved with in the both sides in raceway and arc ramp.Upper class hour teacher can by spin respectively from being covered with glassy layer, plank layer, rubber layer, plateau that the raceway of cotton layer is corresponding roll down, measure spin again and stop the distance of point to plateau of rolling, tell about different material and there is different friction factor, and friction factor is larger, rolling ball rolls point from plateau distance more close to, this friction force exhibiting device is vivid, can understand and directly explain friction factor knowledge.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 is the front view of a kind of friction force exhibiting device of the utility model;
Fig. 2 is the vertical view of a kind of friction force exhibiting device of the utility model;
Fig. 3 is the right view of a kind of friction force exhibiting device of the utility model.
Wherein, 1-raceway, 2-plateau, 3-spin, 4-arc ramp, 5-baffle plate, 6-glassy layer, 7-plank layer, 8-rubber layer, 9-cotton layer, 10-ball, 11-scale.
Embodiment
The preferred implementation of a kind of friction force exhibiting device of the utility model is described in detail below in conjunction with accompanying drawing.
Fig. 1, Fig. 2 and Fig. 3 shows the embodiment of a kind of friction force exhibiting device of the utility model: this friction force exhibiting device comprises plateau 2, arc ramp 4, raceway 1, spin 3, raceway 1 and arc ramp 4 are divided into the equal part of four width by five baffle plates be parallel to each other 5, four parts are bonded with glassy layer 6 respectively by cementing agent successively, plank layer 7, rubber layer 8, cotton layer 9, plateau 2, arc ramp 4, raceway 1, baffle plate 5 is monolithic construction, plateau 2 is respectively equipped with four columniform ball 10 relative to four of raceway 1 parts, scale 11 is all carved with in the both sides in raceway 1 and arc ramp 4.
Composition graphs 1, Fig. 2 and Fig. 3, plateau 2, arc ramp 4, raceway 1, baffle plate 5 are by cast iron manufacture, and surface is brushed with rust protection paint, and weight is large, good stability.Spin 3 is manufactured by stainless steel, and the inertia that rolls from top to bottom is large, and rolling distance is far away, is beneficial to observation.Distance between two adjacent baffle plates 5 is greater than the diameter 3mm of spin 3, both can retrain the raceway direction of spin 3, and spin 3 can be allowed again to rock, and reduces kinetic energy rejection.The diameter of ball 10 is less than the diameter of spin 3, allows spin 3 be unlikely to fall down in ball 10.
Upper class hour teacher can by spin respectively from be covered with glassy layer 6, plank layer 7, rubber layer 8, cotton layer 9 the plateau 2 of raceway 1 correspondence roll down, measure spin 3 again and stop the distance of point to plateau 2 of rolling, tell about different material and there is different friction factor, and friction factor is larger, spin 3 roll point from plateau 2 distance more close to, this friction force exhibiting device is vivid, can understand and directly explain friction factor knowledge.
Above is only preferred implementation of the present utility model; it should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (5)
1. a friction force exhibiting device, it is characterized in that: described friction force exhibiting device comprises plateau (2), arc ramp (4), raceway (1), spin (3), raceway (1) and arc ramp (4) are divided into the equal part of four width by five baffle plates be parallel to each other (5), four parts are bonded with glassy layer (6) respectively by cementing agent successively, plank layer (7), rubber layer (8), cotton layer (9), plateau (2), arc ramp (4), raceway (1), baffle plate (5) is monolithic construction, plateau (2) is respectively equipped with four columniform ball (10) relative to four parts of raceway (1), scale (11) is all carved with in the both sides of raceway (1) and arc ramp (4).
2. friction force exhibiting device according to claim 1, is characterized in that: described plateau (2), arc ramp (4), raceway (1), baffle plate (5) are by cast iron manufacture, and surface is brushed with rust protection paint.
3. friction force exhibiting device according to claim 1, is characterized in that: described spin (3) is manufactured by stainless steel.
4. friction force exhibiting device according to claim 1, is characterized in that: the distance between described adjacent two baffle plates (5) is greater than the diameter 3mm of spin (3).
5. friction force exhibiting device according to claim 1, is characterized in that: the diameter of described ball (10) is less than the diameter of spin (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520888711.7U CN205068936U (en) | 2015-11-04 | 2015-11-04 | Frictional force display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520888711.7U CN205068936U (en) | 2015-11-04 | 2015-11-04 | Frictional force display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205068936U true CN205068936U (en) | 2016-03-02 |
Family
ID=55395460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520888711.7U Expired - Fee Related CN205068936U (en) | 2015-11-04 | 2015-11-04 | Frictional force display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205068936U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106327965A (en) * | 2016-11-08 | 2017-01-11 | 赵冲 | Multifunctional physical experiment instrument |
| CN107764212A (en) * | 2017-09-27 | 2018-03-06 | 界首市皖俊轴承有限公司 | A kind of mechanism arrangement for the detection of bearing inner race annular groove smoothness |
-
2015
- 2015-11-04 CN CN201520888711.7U patent/CN205068936U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106327965A (en) * | 2016-11-08 | 2017-01-11 | 赵冲 | Multifunctional physical experiment instrument |
| CN107764212A (en) * | 2017-09-27 | 2018-03-06 | 界首市皖俊轴承有限公司 | A kind of mechanism arrangement for the detection of bearing inner race annular groove smoothness |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20161104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |