CN209000321U - A kind of friction force demonstration device of different materials - Google Patents
A kind of friction force demonstration device of different materials Download PDFInfo
- Publication number
- CN209000321U CN209000321U CN201821271715.0U CN201821271715U CN209000321U CN 209000321 U CN209000321 U CN 209000321U CN 201821271715 U CN201821271715 U CN 201821271715U CN 209000321 U CN209000321 U CN 209000321U
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- China
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- different materials
- slot
- friction force
- winder
- plate
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Abstract
The utility model discloses a kind of friction force demonstration devices of different materials, comprising: bottom plate, winder, tensiometer and slide plate, the backplate surface indent is provided with T-slot, the front end on bottom plate and being located at T-slot is arranged in the winder, the square plate of several piece different materials is arranged at intervals in the T-slot, the slide plate is arranged in square plate, and the nose is provided with pull ring, winding is provided with the drawstring being connected with pull ring on the winder, and the tensiometer is connected on drawstring.The friction force demonstration device of different materials described in the utility model, student is in an experiment, the winding of drawstring is realized using the rotation of winder, slide plate is driven to slide in the square plate of several piece different materials, and pulling force of the drawstring when slide plate passes through different square plate surfaces is demonstrated by tensiometer, it is thus realized that the frictional force difference on different materials surface, promotes quality of instruction.
Description
Technical field
The utility model relates to instruments used for education field more particularly to a kind of friction force demonstration devices of different materials.
Background technique
In physics teaching, frictional force is important component part.The roughness on different materials surface is different, and frictional force is certainly
It is so also different.
For a long time, in junior-senior high school laboratory, the experiment of frictional force and apparatus for demonstrating are always blank, are brought to teaching
Inconvenience is unfavorable for student to the understanding of different materials skin-friction coefficient and frictional force, needs to improve.
Utility model content
The purpose of this utility model is to provide a kind of friction force demonstration devices of different materials, to different materials plate table
Face carries out frictional force experiment, reinforces recognizing frictional force.
For this purpose, the utility model uses following technical scheme:
A kind of friction force demonstration device of different materials, comprising: bottom plate, winder, tensiometer and slide plate, the bottom plate table
Face indent is provided with T-slot, and the winder is arranged in the front end on bottom plate and being located at T-slot, is spaced setting in the T-slot
There is a square plate of several piece different materials, the slide plate is arranged in square plate, and the nose is provided with pull ring, on the winder
Winding is provided with the drawstring being connected with pull ring, and the tensiometer is connected on drawstring.
Wherein, it is provided with article putting groove at the top of the slide plate, is provided with clump weight in the article putting groove.
Wherein, one end of the winder is provided with handwheel.
Wherein, display is provided on the tensiometer.
Wherein, the slide plate two sides are respectively arranged with the directive wheel for extending to T-slot side wall.
Wherein, the limited block positioned at square plate rear end is provided in the T-slot, the limited block is bolted to T
In shape slot.
The utility model has the beneficial effects that a kind of friction force demonstration device of different materials, student in an experiment, using around
The winding of drawstring is realized in the rotation of line device, drives slide plate to slide in the square plate of several piece different materials, and drill by tensiometer
Show pulling force of the drawstring when slide plate is by different square plate surfaces, it is thus realized that the frictional force difference on different materials surface, is promoted
Quality of instruction.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The technical solution of the utility model is further illustrated below with reference to Fig. 1 and by specific embodiment.
A kind of friction force demonstration device of different materials, comprising: bottom plate 1, winder 2, tensiometer 5 and slide plate 8, the bottom
1 concave surface of plate is provided with T-slot 9, and 9 front ends on bottom plate 1 and being located at T-slot, the T-slot 9 is arranged in the winder 2
In be arranged at intervals with the square plates 6 of 3 pieces of different materials, the installation and limit of square plate 6 are carried out using T-slot 9, keeps the flat of square plate 6
It is whole.
The limited block 11 positioned at 6 rear end of square plate is provided in the T-slot 9, the limited block 11 is fixed using bolt 10
In T-slot 9, after square plate 6 is installed, the limit of square plate 6 is carried out using limited block 11, avoids the shaking of square plate 6.
The slide plate 8 is arranged in square plate 6, and 8 front end of slide plate is provided with pull ring 4, winds setting on the winder 2
There is the drawstring 3 being connected with pull ring 4, the tensiometer 5 is connected on drawstring 3.Drawstring 3 pulls square plate 6 in the side of different materials
When sliding on plate 6, the pulling force needed is different, and the real-time monitoring of pulling force is carried out using tensiometer 5.It is set on the tensiometer 5
It is equipped with display, it can be with the pulling force of real-time display drawstring 3, for observing the variation of frictional force.
One end of the winder 2 is provided with handwheel 13, can carry out the manual operation of winder 2, easier, favorably
In the manipulative ability of training student.
It is provided with article putting groove at the top of the slide plate 8, clump weight 12 is provided in the article putting groove.The friction of part square plate 6
Coefficient is small, if 8 weight of slide plate is too light, frictional force is just smaller, is unfavorable for the detection work of tensiometer 5, can add counterweight
Block increases frictional force, facilitates the variation of frictional force.
8 two sides of slide plate are respectively arranged with the directive wheel 7 for extending to 9 side wall of T-slot, and directive wheel 7 can be to avoid slide plate 8
Deflection, slide plate 8 is moved linearly, stability is high, and the resistance of directive wheel 7 is small, the influence to frictional force detection
It is small.
The above content is only the preferred embodiment of the utility model, for those of ordinary skill in the art, according to this reality
With novel thought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as
Limitations of the present invention.
Claims (6)
1. a kind of friction force demonstration device of different materials characterized by comprising bottom plate, winder, tensiometer and slide plate,
The backplate surface indent is provided with T-slot, and the front end on bottom plate and being located at T-slot, the T-slot is arranged in the winder
In be arranged at intervals with the square plates of several piece different materials, the slide plate is arranged in square plate, and the nose is provided with pull ring, institute
It states winding on winder and is provided with the drawstring being connected with pull ring, the tensiometer is connected on drawstring.
2. the friction force demonstration device of different materials according to claim 1, which is characterized in that setting at the top of the slide plate
There is article putting groove, is provided with clump weight in the article putting groove.
3. the friction force demonstration device of different materials according to claim 1, which is characterized in that one end of the winder
It is provided with handwheel.
4. the friction force demonstration device of different materials according to claim 1, which is characterized in that be arranged on the tensiometer
There is display.
5. the friction force demonstration device of different materials according to claim 1, which is characterized in that the slide plate two sides difference
It is provided with the directive wheel for extending to T-slot side wall.
6. the friction force demonstration device of different materials according to claim 1, which is characterized in that be arranged in the T-slot
There is the limited block positioned at square plate rear end, the limited block is bolted in T-slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821271715.0U CN209000321U (en) | 2018-08-07 | 2018-08-07 | A kind of friction force demonstration device of different materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821271715.0U CN209000321U (en) | 2018-08-07 | 2018-08-07 | A kind of friction force demonstration device of different materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209000321U true CN209000321U (en) | 2019-06-18 |
Family
ID=66796880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821271715.0U Expired - Fee Related CN209000321U (en) | 2018-08-07 | 2018-08-07 | A kind of friction force demonstration device of different materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209000321U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110533997A (en) * | 2019-09-11 | 2019-12-03 | 罗森聪 | Integrated demonstration experimental device for the experiment of physical friction power |
-
2018
- 2018-08-07 CN CN201821271715.0U patent/CN209000321U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110533997A (en) * | 2019-09-11 | 2019-12-03 | 罗森聪 | Integrated demonstration experimental device for the experiment of physical friction power |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190618 Termination date: 20200807 |
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| CF01 | Termination of patent right due to non-payment of annual fee |