CN204143708U - One probes into friction force rule detection instrument - Google Patents
One probes into friction force rule detection instrument Download PDFInfo
- Publication number
- CN204143708U CN204143708U CN201420704266.XU CN201420704266U CN204143708U CN 204143708 U CN204143708 U CN 204143708U CN 201420704266 U CN201420704266 U CN 201420704266U CN 204143708 U CN204143708 U CN 204143708U
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- CN
- China
- Prior art keywords
- slide block
- base plate
- stay cord
- friction force
- detection instrument
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to education and instruction technical field, specifically one probes into friction force rule detection instrument, it comprises base plate, weight beam, slide block, stay cord, it is characterized in that base plate one end is provided with support, support is provided with roller, roller is connected with support through fulcrum, one end of fulcrum is provided with crank, the other end of base plate is provided with pole, pole upper end is provided with crossbeam, pendulum spring dynamometer on crossbeam, base plate immediately below weight beam is provided with pulley through support, base plate between pulley and roller places slide plate, one end of slide plate is connected with roller by stay cord, slide block is provided with above slide plate, slide block one end is provided with hook, one end of stay cord is connected with slide block through hook, the stay cord other end is connected with weight beam steelyard hook through pulley, when using in teaching, have directly perceived, simply, student accepts soon, the advantages such as experiment is convenient.
Description
Technical field
The utility model relates to education and instruction technical field, specifically a kind of practical, probe into friction force rule detection instrument intuitively.
Background technology
At present, in teaching, probe in the experiment of stiction and kinetic force of friction rule, dynamometer horizontal positioned, probably makes dynamometer self gravitation produce friction force, causes measurement result inaccurate, and not directly perceived during reading, there is contingency to research stiction and kinetic force of friction rule.
Utility model content
The purpose of this utility model solves above-mentioned the deficiencies in the prior art, provide a kind of rational in infrastructure, instructional function strong, research friction force rule detection instrument easy and simple to handle.
The utility model solves the technical scheme that its technical matters adopts:
One probes into friction force rule detection instrument, comprise base plate, weight beam, slide block, stay cord, it is characterized in that base plate one end is provided with support, support is provided with roller, roller is connected with support through fulcrum, one end of fulcrum is provided with crank, crank is easily controlled by student, power supply need not be equipped with, be convenient to the size of students experience to power, the other end of base plate is provided with pole, pole upper end is provided with crossbeam, pendulum spring dynamometer on crossbeam, reading is directly perceived, when avoiding dynamometer horizontal positioned, self gravitation is on the impact of experimental result simultaneously, base plate immediately below weight beam is provided with pulley through support, base plate between pulley and roller places slide plate, one end of slide plate is connected with roller by stay cord, slide block is provided with above slide plate, slide block one end is provided with hook, one end of stay cord is connected with slide block through hook, the stay cord other end is connected with weight beam steelyard hook through pulley, be convenient to student and record experimental data.
One described in the utility model probes into friction force rule detection instrument, it is characterized in that weight beam precision is 0.1N, makes experimental result more accurate.
One described in the utility model probes into friction force rule detection instrument, it is characterized in that slide block is the different rectangular parallelepipeds of length, width and height, bottom surface and right flank are provided with sand paper, upper bottom surface and left surface are provided with glossy paper, supply probes into different surface of contact, different contact area to friction effects, avoids the error changing slide block generation.
One described in the utility model probes into friction force rule detection instrument, it is characterized in that slide block one end is provided with two hooks, also can meet pulling force in horizontal direction, make experiment conclusion more accurate when overturning change contact area to make slide block.
One described in the utility model probes into friction force rule detection instrument, it is characterized in that the stay cord connected with slide block and slide plate is parallel with base plate, makes experimental data more accurate, reduces experimental error.
One described in the utility model probes into friction force rule detection instrument, it is characterized in that weight beam top left and right sides is respectively equipped with two bolts, two knobs are respectively equipped with immediately below two bolts, knob is bolted on weight beam, article two, stay cord connects square bolt and below knob respectively, the degree of tightness of stay cord is regulated by knob, article two, be installed with draw runner between stay cord, when shaking crank, weight beam pointer is drop-down, pointer promotes draw runner and glides, when reaching maximum static friction force, draw runner is fixed, continue shake crank, skid, pointer moves, intuitively can find out the relation of maximum static friction force and force of sliding friction.
The utility model is owing to adopting said structure, in teaching, when probing into stiction and force of sliding friction, reading intuitive and convenient, avoid the impact of spring self gravitation on experimental result, intuitively can find out the relation of maximum static friction force and force of sliding friction, simultaneously can probe into out force of sliding friction and pressure, surface of contact area, have between speed of related movement and surface of contact degree of roughness irrelevant, and quantitatively can measure the quantitative relationship of force of sliding friction and pressure, have intuitively, simple, student accepts soon, test the advantages such as convenient.
accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated:
As shown in drawings, one probes into friction force rule detection instrument, comprise base plate 1, weight beam 3, slide block 5, stay cord, it is characterized in that base plate 1 one end is provided with support, support is provided with roller 8, roller 8 is connected with support through fulcrum, one end of fulcrum is provided with crank 7, crank 7 is easily controlled by student, power supply need not be equipped with, be convenient to the size of students experience to power, the other end of base plate 1 is provided with pole 9, pole 9 upper end is provided with crossbeam 2, pendulum spring dynamometer 3 on crossbeam 2, reading is directly perceived, when avoiding weight beam 3 horizontal positioned, self gravitation is on the impact of experimental result simultaneously, weight beam 3 lower end steelyard hook shortens, replace with cord, greatly reduce the friction effects between the arm beam of steelyard and weight beam 3 shell, weight beam 3 precision is 0.1N, make experimental result more accurate, weight beam 3 top left and right sides is respectively equipped with two bolts 10, two knobs 12 are respectively equipped with immediately below two bolts 10, knob 12 is bolted on weight beam 3, article two, nylon withdrawal line connects square bolt 10 and below knob 12 respectively, the degree of tightness of nylon withdrawal line is regulated by knob 12, article two, be installed with draw runner 11 between nylon withdrawal line, when shaking crank 7, weight beam 3 pointer is drop-down, pointer promotes draw runner 11 and glides, when reaching maximum static friction force, draw runner 11 is fixed, draw runner 11 is fixed, continue shake crank 7, slide block 5 slides, pointer moves, intuitively can find out the relation of maximum static friction force and force of sliding friction, base plate 1 immediately below weight beam 3 is provided with pulley 4 through support, base plate 1 between pulley 4 and roller 8 places slide plate 6, one end of slide plate 6 is connected with roller 8 by stay cord, slide plate 6 is provided with slide block 5 above, slide block 5 is the different rectangular parallelepipeds of length, width and height, bottom surface and right flank are provided with sand paper, upper bottom surface and left surface are provided with glossy paper, different surface of contact is probed in supply, different contact area is to friction effects, avoid the error changing slide block generation, slide block 5 one end is provided with two hooks, also pulling force can be met in horizontal direction when overturning change contact area to make slide block 5, make experiment conclusion more accurate, one end of stay cord is connected with slide block 5 through hook, the stay cord other end is connected with weight beam 3 steelyard hook through pulley 4, be convenient to student and record experimental data, the stay cord connected with slide block 5 and slide plate 6 is parallel with base plate 1, make experimental data more accurate, reduce experimental error.
When the utility model uses in teaching, slow shake crank 7, slide plate is stressed, slide block 5 is under static state moved, weight beam 3 shows slide block 5 stress data, intuitively can find out slide block 5 stressing conditions, when probing into stiction and force of sliding friction, reading intuitive and convenient, avoid weight beam 3 self gravitation to the impact of experimental result, intuitively can find out the relation of maximum static friction force and force of sliding friction, force of sliding friction and pressure can be probed into out simultaneously, surface of contact area, have irrelevant between speed of related movement and surface of contact degree of roughness, and quantitatively can measure the quantitative relationship of force of sliding friction and pressure, have directly perceived, simply, student accepts soon, the advantages such as experiment is convenient.
Claims (6)
1. probe into friction force rule detection instrument for one kind, comprise base plate, weight beam, slide block, stay cord, it is characterized in that base plate one end is provided with support, roller is connected with support through fulcrum, one end of fulcrum is provided with crank, the other end of base plate is provided with pole, pole upper end is provided with crossbeam, pendulum spring dynamometer on crossbeam, base plate immediately below weight beam is provided with pulley through support, base plate between pulley and roller places slide plate, slide plate is connected with roller by stay cord, slide block is provided with above slide plate, slide block is provided with hook, one end of stay cord is connected with slide block through hook, the stay cord other end is connected with weight beam steelyard hook through pulley.
2. one according to claim 1 probes into friction force rule detection instrument, it is characterized in that weight beam precision is 0.1N.
3. one according to claim 1 probes into friction force rule detection instrument, and it is characterized in that slide block is the different rectangular parallelepipeds of length, width and height, bottom surface and right flank are provided with sand paper, and upper bottom surface and left surface are provided with glossy paper.
4. require that the one described in 1 probes into friction force rule detection instrument as requested, it is characterized in that slide block one end is provided with two hooks.
5. one according to claim 1 probes into friction force rule detection instrument, it is characterized in that the stay cord connected with slide block and slide plate is parallel with base plate.
6. one according to claim 1 probes into friction force rule detection instrument, it is characterized in that weight beam top left and right sides is respectively equipped with two bolts, two knobs are respectively equipped with immediately below two bolts, knob is bolted on weight beam, article two, stay cord connects square bolt and below knob respectively, is installed with draw runner between two stay cords.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420704266.XU CN204143708U (en) | 2014-11-21 | 2014-11-21 | One probes into friction force rule detection instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420704266.XU CN204143708U (en) | 2014-11-21 | 2014-11-21 | One probes into friction force rule detection instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204143708U true CN204143708U (en) | 2015-02-04 |
Family
ID=52420380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420704266.XU Expired - Fee Related CN204143708U (en) | 2014-11-21 | 2014-11-21 | One probes into friction force rule detection instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204143708U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105654816A (en) * | 2016-01-22 | 2016-06-08 | 王义金 | Gravity and friction relationship test device |
| CN106441666A (en) * | 2016-08-12 | 2017-02-22 | 浙江工业大学 | Frictional force measuring method and frictional force measuring device for sliding block on horizontal linear guide rail |
| CN107749222A (en) * | 2017-12-15 | 2018-03-02 | 胡国领 | A kind of maximum static friction force demonstrator |
-
2014
- 2014-11-21 CN CN201420704266.XU patent/CN204143708U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105654816A (en) * | 2016-01-22 | 2016-06-08 | 王义金 | Gravity and friction relationship test device |
| CN106441666A (en) * | 2016-08-12 | 2017-02-22 | 浙江工业大学 | Frictional force measuring method and frictional force measuring device for sliding block on horizontal linear guide rail |
| CN106441666B (en) * | 2016-08-12 | 2022-05-13 | 浙江工业大学 | Method for measuring friction force of sliding block on horizontal linear guide rail |
| CN107749222A (en) * | 2017-12-15 | 2018-03-02 | 胡国领 | A kind of maximum static friction force demonstrator |
| CN107749222B (en) * | 2017-12-15 | 2024-04-16 | 胡国领 | Maximum static friction force demonstration instrument |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20161121 |