CN208315041U - A kind of physical friction power experiment teaching aid - Google Patents
A kind of physical friction power experiment teaching aid Download PDFInfo
- Publication number
- CN208315041U CN208315041U CN201820576226.XU CN201820576226U CN208315041U CN 208315041 U CN208315041 U CN 208315041U CN 201820576226 U CN201820576226 U CN 201820576226U CN 208315041 U CN208315041 U CN 208315041U
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- China
- Prior art keywords
- plate
- experiment
- teaching aid
- cabinet
- friction power
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Abstract
The utility model discloses a kind of physical friction power experiment teaching aids, including cabinet, support plate, experimental plate, mounting screw and experiment block, when utility model works, under the action of fixture and mounting screw, the experimental plate of different surface roughness can be replaced, according to requirement of experiment in the second motor, the angle of regulation experiment plate under the action of first bevel gear and second bevel gear, corner can be accurately controlled under the action of bevel protractor, and in first motor, the height of regulation experiment plate adapts to the direction of pull of requirement of experiment under the action of gear and rack gear, frictional force experiment under the conditions of can satisfy more, weight such as counterweight etc. is placed in placed cavity, and pressure is provided, pressure value is measured under the action of pressure sensor and is shown by display screen, rotate the pulling force of shake handle adjustment cotton rope, pulling force is shown by dynamometer, every numerical value Real-time display, so that teaching aid experiment and demonstrating effect greatly improve.
Description
Technical field
The utility model relates to a kind of experiment teaching aid, specifically a kind of physical friction power experiment teaching aid.
Background technique
The power of relative motion of object (or relative motion trend) is hindered to be called frictional force.The direction of frictional force is opposite with object
Move the contrary of (or relative motion trend).
One object generates between contact surface when another body surface slides and hinders rubbing for their relative motions
It wipes, referred to as sliding friction.The size and pressure size of the degree of roughness of the size and contact surface of force of sliding friction are related.Pressure is got over
Greatly, object contact surface is more coarse, and the force of sliding friction of generation is bigger.
In material resources teaching process, it is existing that material resources teacher usually needs to use the visual in image demonstration material resources of experiment teaching aid
As.Existing physical friction power experiment teaching aid has a single function the sliding friction phenomenon that can only only demonstrate plane, so that student is not
The case where frictional force under different condition can intuitively be experienced.Existing physical friction power experiment teaching aid can only be on single surface
It is demonstrated on the experimental plate of degree of roughness, student can not be allowed intuitively to experience shadow of the degree of roughness to frictional force of contact surface
It rings.
Summary of the invention
The purpose of this utility model is to provide a kind of physical friction power experiment teaching aids, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the utility model provides the following technical solutions:
A kind of physical friction power experiment teaching aid, including cabinet, support plate, experimental plate, mounting screw and experiment block, the case
Body top opening, cabinets cavity lower part are provided with support plate, and support plate is fixedly connected with cabinet wall, are provided at the top of support plate
Sliding sleeve, sliding sleeve internal slide are connected with rack gear, are fixedly connected with mobile support plate at the top of rack gear；The cabinet wall is provided with
One motor, first motor output end have gear, wheel and rack engagement by axis connection；It is provided at the top of the mobile support plate
Second motor, the second motor output end are connected with central rotating shaft, and central rotating shaft end is provided with first bevel gear；The mobile branch
Front and back side is provided with the first connecting plate at the top of board, and connection shaft is provided between two first connecting plates, is set in the middle part of connection shaft
It is equipped with second bevel gear, second bevel gear and first bevel gear engagement；The connection shaft front end is fixedly connected with adjustment pivoted arm,
Adjustment pivoted arm top is provided with fixture, is clamped with experimental plate in fixture；The fixture is connect with experimental plate by mounting screw；Institute
It states front side wall outside cabinet and is provided with bevel protractor, cabinets cavity bottom is provided with drawer；
Side is provided with the second connecting plate before and after right end at the top of the experimental plate, is provided with line sending roller between two second connecting plates
Axis；Side is provided with third connecting plate before and after the top of the box right end, is provided with coiling roll shaft, coiling between two third connecting plates
Roll shaft back center is provided with rocker arm, and rocker arm end is rotatably connected to shake handle；Side is set before and after the experimental plate top center
It is equipped with limit plate, experimental plate top left side is provided with experiment block between two limit plates, and experimental plate top right side is located at two limits
It is provided with dynamometer between the plate of position, is connected with connecting rope between dynamometer and experiment block；It is wound with cotton rope on the coiling roll shaft,
Cotton rope end passes through line sending roll shaft and connect with dynamometer；Placed cavity is provided at the top of the experiment block, experiment block bottom is provided with
Pressure sensor, pressure sensor top are connected with movable plate, and movable plate is slidably connected with placed cavity；It is set at the top of the experiment block
It is equipped with display screen.
As a further solution of the present invention: the bevel protractor center with to connect spindle central conllinear, and bevel protractor
It is fixed on wall box.
The drawer side surface is provided with handle as a further solution of the present invention,.
Skid resistance strip is provided on the outside of the shake handle as a further solution of the present invention,.
The experiment block and dynamometer are slidably connected with experimental plate as a further solution of the present invention,.
The experiment block, dynamometer, line sending roll shaft and coiling roll shaft are lateral as a further solution of the present invention,
Center is conllinear.
The bevel protractor is made as a further solution of the present invention, of transparent plastic.
The model RFP602 of the pressure sensor as a further solution of the present invention,.
Compared with prior art, the utility model has the beneficial effects that
The utility model designs advantages of simple in structure, uses easy to operate, and practicability is very high, work
When, it selects the experimental plate of particular surface roughness to be mounted in fixture and is fastened with mounting screw, it is thick different surfaces can be replaced
The experimental plate of rugosity improves the suitability of experiment teaching aid, according to requirement of experiment in the second motor, first bevel gear and the second cone tooth
The angle of regulation experiment plate under the action of wheel can accurately control corner under the action of bevel protractor, and in first motor, gear
The direction of pull that requirement of experiment is adapted to the height of regulation experiment plate under the action of rack gear, can satisfy it is more under the conditions of rubbing
Power experiment is wiped, experiment effect is improved, weight such as counterweight etc. is placed in placed cavity, pressure is provided, pressure value is in pressure sensor
Under the action of measure and shown by display screen, the pulling force of rotation shake handle adjustment cotton rope, pulling force is shown by dynamometer, items
Numerical value real-time display greatly improves experiment and demonstrating effect, and the reality of weight or different surface roughness can be placed in drawer
Plate is tested, so that teaching aid is easy to carry.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of physical friction power experiment teaching aid.
Fig. 2 is a kind of top view of physical friction power experiment teaching aid.
Fig. 3 is the structural schematic diagram that block is tested in a kind of physical friction power experiment teaching aid.
In figure: 1- cabinet, 2- support plate, 3- sliding sleeve, 4- rack gear, 5- mobile support plate, 6- first motor, 7- gear, 8-
Second motor, 9- central rotating shaft, 10- first bevel gear, the first connecting plate of 11-, 12- connection shaft, 13- second bevel gear, 14-
Adjustment pivoted arm, 15- fixture, 16- experimental plate, 17- mounting screw, 18- bevel protractor, 19- drawer, the second connecting plate of 20-, 21- are sent
Line roll shaft, 22- third connecting plate, 23- coiling roll shaft, 24- rocker arm, 25- shake handle, 26- limit plate, 27- test block, 28-
Dynamometer, 29- cotton rope, 30- connecting rope, 31- placed cavity, 32- pressure sensor, 33- movable plate, 34- display screen.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1~3, in the utility model embodiment, a kind of physical friction power experiment teaching aid, including cabinet 1, bearing
Plate 2, experimental plate 16, mounting screw 17 and experiment block 27,1 top opening of cabinet, 1 inner cavity lower part of cabinet is provided with support plate
2, support plate 2 is fixedly connected with 1 inner wall of cabinet, and sliding sleeve 3 is provided at the top of support plate 2, and 3 internal slide of sliding sleeve is connected with rack gear 4,
Mobile support plate 5 is fixedly connected at the top of rack gear 4；1 inner wall of cabinet is provided with first motor 6, and 6 output end of first motor is logical
Crossing axis connection has gear 7, and gear 7 is engaged with rack gear 4；The second motor 8, the second motor 8 are provided at the top of the mobile support plate 5
Output end is connected with central rotating shaft 9, and 9 end of central rotating shaft is provided with first bevel gear 10；The 5 top front and back of mobile support plate
Side is provided with the first connecting plate 11, and connection shaft 12 is provided between two first connecting plates 11, connects and is provided in the middle part of shaft 12
Second bevel gear 13, second bevel gear 13 and first bevel gear 10 engage；12 front end of connection shaft is fixedly connected with adjustment
Pivoted arm 14, adjustment 14 top of pivoted arm are provided with fixture 15, experimental plate 16 are clamped in fixture 15；The fixture 15 and experimental plate 16
It is connected by mounting screw 17；The 1 outside front side wall of cabinet is provided with bevel protractor 18, and 1 intracavity bottom of cabinet is provided with drawer
19；
Side is provided with the second connecting plate 20 before and after the 16 top right end of experimental plate, is provided between two second connecting plates 20
Line sending roll shaft 21；Side is provided with third connecting plate 22 before and after the 1 top right end of cabinet, is provided between two third connecting plates 22
Coiling roll shaft 23,23 back center of coiling roll shaft are provided with rocker arm 24, and 24 end of rocker arm is rotatably connected to shake handle 25；It is described
Side is provided with limit plate 26 before and after 16 top center of experimental plate, and 16 top left side of experimental plate is provided between two limit plates 26
Block 27 is tested, 16 top right side of experimental plate is provided with dynamometer 28, dynamometer 28 and experiment block 27 between two limit plates 26
Between be connected with connecting rope 30；Cotton rope 29 is wound on the coiling roll shaft 23,29 end of cotton rope passes through line sending roll shaft 21 and surveys
Power meter 28 connects；Placed cavity 31 is provided at the top of the experiment block 27, experiment 27 bottom of block is provided with pressure sensor 32, pressure
Movable plate 33 is connected at the top of sensor 32, movable plate 33 is slidably connected with placed cavity 31；It is provided at the top of the experiment block 27
Display screen 34.
18 center of bevel protractor with to connect 12 center of shaft conllinear, and bevel protractor 18 is fixed on 1 side wall of cabinet.
19 side of drawer is provided with handle.
Skid resistance strip is provided on the outside of the shake handle 25.
The experiment block 27 and dynamometer 28 are slidably connected with experimental plate 16.
The experiment block 27, dynamometer 28, line sending roll shaft 21 are conllinear with 23 transverse center of coiling roll shaft.
The bevel protractor 18 is made of transparent plastic.
The model RFP602 of the pressure sensor 32.
The working principle of the utility model is:
The utility model relates to a kind of physical friction power experiment teaching aids, at work, select the reality of particular surface roughness
It tests plate 16 to be mounted in fixture 15 and fastened with mounting screw 17, according to requirement of experiment in the second motor 8,10 and of first bevel gear
The angle of regulation experiment plate 16 under the action of second bevel gear 13 can accurately control corner under the action of bevel protractor 18, and
The height of regulation experiment plate 16 adapts to the direction of pull of requirement of experiment under the action of first motor 6, gear 7 and rack gear 4,
Weight such as counterweight etc. being placed in placed cavity 31, pressure being provided, pressure value is measured and under the action of pressure sensor 32 by showing
34 display of screen, rotation shake handle 25 adjust the pulling force of cotton rope 29, and pulling force is shown by dynamometer 28, and it is real to complete material resources frictional force
It tests, the experimental plate 16 of weight or different surface roughness can be placed in drawer 19.
The utility model designs advantages of simple in structure, uses easy to operate, and practicability is very high, work
When, it selects the experimental plate of particular surface roughness to be mounted in fixture and is fastened with mounting screw, it is thick different surfaces can be replaced
The experimental plate of rugosity improves the suitability of experiment teaching aid, according to requirement of experiment in the second motor, first bevel gear and the second cone tooth
The angle of regulation experiment plate under the action of wheel can accurately control corner under the action of bevel protractor, and in first motor, gear
The direction of pull that requirement of experiment is adapted to the height of regulation experiment plate under the action of rack gear, can satisfy it is more under the conditions of rubbing
Power experiment is wiped, experiment effect is improved, weight such as counterweight etc. is placed in placed cavity, pressure is provided, pressure value is in pressure sensor
Under the action of measure and shown by display screen, the pulling force of rotation shake handle adjustment cotton rope, pulling force is shown by dynamometer, items
Numerical value real-time display greatly improves experiment and demonstrating effect, and the reality of weight or different surface roughness can be placed in drawer
Plate is tested, so that teaching aid is easy to carry.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of physical friction power experiment teaching aid, including cabinet (1), support plate (2), experimental plate (16), mounting screw (17) and
It tests block (27), which is characterized in that cabinet (1) top opening, cabinet (1) inner cavity lower part are provided with support plate (2), bearing
Plate (2) is fixedly connected with cabinet (1) inner wall, is provided with sliding sleeve (3) at the top of support plate (2), and the connection of sliding sleeve (3) internal slide is with teeth
Item (4), rack gear (4) top are fixedly connected with mobile support plate (5)；Cabinet (1) inner wall is provided with first motor (6), the
One motor (6) output end has gear (7) by axis connection, and gear (7) is engaged with rack gear (4)；At the top of the mobile support plate (5)
It is provided with the second motor (8), the second motor (8) output end is connected with central rotating shaft (9), and central rotating shaft (9) end is provided with
One bevel gear (10)；Front and back side is provided with the first connecting plate (11) at the top of the mobile support plate (5), two first connecting plates (11)
Between be provided with connection shaft (12), connection shaft (12) in the middle part of be provided with second bevel gear (13), second bevel gear (13) and
First bevel gear (10) engagement；Connection shaft (12) front end is fixedly connected with adjustment pivoted arm (14), adjustment pivoted arm (14) top
End is provided with fixture (15), is clamped with experimental plate (16) in fixture (15)；The fixture (15) and experimental plate (16) pass through installation
Screw (17) connection；The external front side wall of the cabinet (1) is provided with bevel protractor (18), and cabinet (1) intracavity bottom is provided with drawer
(19)；
Side is provided with the second connecting plate (20) before and after right end at the top of the experimental plate (16), is arranged between two second connecting plates (20)
There are line sending roll shaft (21)；Side is provided with third connecting plate (22) before and after right end at the top of the cabinet (1), two third connecting plates (22)
Between be provided with coiling roll shaft (23), coiling roll shaft (23) back center is provided with rocker arm (24), rocker arm (24) end rotation connect
It is connected to shake handle (25)；Side is provided with limit plate (26) before and after experimental plate (16) top center, at the top of experimental plate (16)
Left side be provided between two limit plates (26) experiment block (27), experimental plate (16) top right side be located at two limit plates (26) it
Between be provided with dynamometer (28), dynamometer (28) and experiment block (27) between be connected with connecting rope (30)；The coiling roll shaft
(23) it is wound on cotton rope (29), cotton rope (29) end passes through line sending roll shaft (21) and connect with dynamometer (28)；The experiment block
(27) top is provided with placed cavity (31), and experiment block (27) bottom is provided with pressure sensor (32), pressure sensor (32) top
Portion is connected with movable plate (33), and movable plate (33) is slidably connected with placed cavity (31)；It is provided at the top of the experiment block (27) aobvious
Display screen (34).
2. a kind of physical friction power experiment teaching aid according to claim 1, which is characterized in that bevel protractor (18) center
Shaft (12) center is conllinear with connecting, and bevel protractor (18) is fixed on cabinet (1) side wall.
3. a kind of physical friction power experiment teaching aid according to claim 1, which is characterized in that drawer (19) side is set
It is equipped with handle.
4. a kind of physical friction power experiment teaching aid according to claim 1, which is characterized in that the shake handle (25) is outside
Side is provided with skid resistance strip.
5. a kind of physical friction power experiment teaching aid according to claim 1, which is characterized in that the experiment block (27) and survey
Power meter (28) is slidably connected with experimental plate (16).
6. a kind of physical friction power experiment teaching aid according to claim 1, which is characterized in that the experiment block (27) is surveyed
Power meter (28), line sending roll shaft (21) and coiling roll shaft (23) transverse center are conllinear.
7. a kind of physical friction power experiment teaching aid according to claim 1, which is characterized in that the bevel protractor (18) is
Bright plastics are made.
8. a kind of physical friction power experiment teaching aid according to claim 1, which is characterized in that the pressure sensor (32)
Model RFP602.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820576226.XU CN208315041U (en) | 2018-04-21 | 2018-04-21 | A kind of physical friction power experiment teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820576226.XU CN208315041U (en) | 2018-04-21 | 2018-04-21 | A kind of physical friction power experiment teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208315041U true CN208315041U (en) | 2019-01-01 |
Family
ID=64712985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820576226.XU Expired - Fee Related CN208315041U (en) | 2018-04-21 | 2018-04-21 | A kind of physical friction power experiment teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208315041U (en) |
-
2018
- 2018-04-21 CN CN201820576226.XU patent/CN208315041U/en not_active Expired - Fee Related
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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: 20190101 Termination date: 20190421 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |