CN107993535A - A kind of physical study friction force demonstration device - Google Patents
A kind of physical study friction force demonstration device Download PDFInfo
- Publication number
- CN107993535A CN107993535A CN201810101413.7A CN201810101413A CN107993535A CN 107993535 A CN107993535 A CN 107993535A CN 201810101413 A CN201810101413 A CN 201810101413A CN 107993535 A CN107993535 A CN 107993535A
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- base
- sensor
- supporting rack
- mobile
- roll shaft
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/10—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of solid bodies
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- General Physics & Mathematics (AREA)
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- Theoretical Computer Science (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Business, Economics & Management (AREA)
- Mathematical Physics (AREA)
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- Computational Mathematics (AREA)
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- Educational Technology (AREA)
- Pure & Applied Mathematics (AREA)
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Abstract
The invention belongs to schooling apparatus technical field, and in particular to a kind of physical study friction force demonstration device.The physical study friction force demonstration device, including base, electronic scale, processor, timer and display screen, the base is equipped with mobile demonstration block, one end on base positioned at second sensor is equipped with electronic scale, the base both ends are arranged with spacing terminal, and the spacing terminal of wherein one end is equipped with first sensor on base, and the spacing terminal of the other end is equipped with second sensor, one end that base is located at second sensor is equipped with supporting rack, and supporting rack is equipped with disk line roll shaft.Its advantage is：Can intuitively demonstration friction it is simple in structure to the importance of object translational speed, it is easy to use, increase teaching interest, learn easy to students and understand, brought conveniently to teaching for teacher.
Description
Technical field
The invention belongs to schooling apparatus technical field, and in particular to a kind of physical study friction force demonstration device.
Background technology
At present, in existing Physical Experiment, pulling force, the test experiments of gravity are to carry out list by single test equipment
Solely detect and record, every test equipment function is relatively simple, and extent of deterioration is bigger, and error is bigger, to experiment with using
Accuracy brings error, in addition, single test equipment also greatly reducing the learning interest of students.
The content of the invention
Object translational speed can be intuitively demonstrated in order to compensate for the shortcomings of the prior art, the present invention provides one kind to be rubbed
Wipe the physical study friction force demonstration device that power influences.
The present invention is achieved through the following technical solutions：
A kind of physical study friction force demonstration device, including base, electronic scale, processor, timer and display screen, the bottom
Seat is equipped with mobile demonstration block, and mobile demonstrate is equipped with clump weight, electronics is equipped with positioned at one end of second sensor on base in block
Claim, the base both ends are arranged with spacing terminal, and the spacing terminal of wherein one end is equipped with first sensor on base, another
The spacing terminal at end is equipped with second sensor, and one end that base is located at second sensor is equipped with supporting rack, and supporting rack is equipped with
It is respectively equipped with pulley blocks on disk line roll shaft, supporting rack end and spacing terminal equipped with second sensor, the drawing on disk line roll shaft
Rope is connected around the pulley blocks on supporting rack end and spacing terminal with mobile demonstration block, one of bottom surface of mobile demonstration block
It is connected by pulling force sensor with drawstring, disk line roll shaft is driven by motor, and the base side is equipped with display screen, display screen one
Side is equipped with control button, and savings power supply, processor and timer are equipped with the base, and processor processing electronic scale, first pass
Sensor, the information of pulling force sensor and second sensor are simultaneously shown by display screen.
Further, the exterior contour of support frame as described above is L-shaped, and the L-shaped bending part of supporting rack is equipped with disk line roll shaft, drive disk
The motor of line roll shaft is bi-directional drive motor.
Further, the mobile demonstration block is hexagonal prism, and six sides of mobile demonstration block are respectively leather bottom surface, gold
Belong to bottom surface, stone material bottom surface, rubber bottom surface, timber bottom surface and PVC plastic bottom surface, leather bottom surface, metal bottom surface, stone material bottom surface, rubber
The friction coefficient of glue bottom surface, timber bottom surface and PVC plastic bottom surface differs.
Further, described mobile demonstration block one end is equipped with end cap, and the clump weight of different weight is replaced by opening end cap.
Further, it is described
The beneficial effects of the invention are as follows：A kind of physical study friction force demonstration device of the present invention being capable of intuitively demonstration friction
To the importance of object translational speed, the weight of the mobile demonstration block of electronic scale measurement, when motor drive disk line roll shaft tightens drawstring
Drive mobile demonstration block to be moved on base afterwards, select each side on mobile demonstration block to be demonstrated on base, count
When device record mobile demonstration block respectively and leave second sensor and reach the time of first sensor, and shown by display screen
Show, the influence of the differential display frictional force of passage time to speed is simple in structure, easy to use, increases teaching interest, is easy to
Students learn and understand, are brought conveniently to teaching for teacher.
Brief description of the drawings
The present invention is further illustrated below in conjunction with the accompanying drawings.
Accompanying drawing 1 is the structural representation of the present invention；
Attached drawing 2 is the mobile schematic cross-section for demonstrating block of the present invention.
In figure, 1 base, 2 spacing terminals, 3 movement demonstration blocks, 4 supporting racks, 5 pulley blocks, 6 drawstrings, 7 pulling force sensors, 8
Electronic scale, 9 first sensors, 10 processors, 11 timers, 12 second sensors, 13 display screens, 14 control buttons, 15 leathers
Bottom surface, 16 metal bottom surfaces, 17 stone material bottom surfaces, 18 rubber bottom surfaces, 19 timber bottom surfaces, 20 PVC plastic bottom surfaces, 21 savings power supplys, 22
Disk line roll shaft, 23 motors, 24 end caps, 25 clump weights.
Embodiment
Attached drawing 1 is a kind of specific embodiment of the invention.A kind of physical study friction force demonstration device of the invention, including
Base 1, electronic scale, processor 10, timer 11 and display screen 13, the base 1 are equipped with mobile demonstration block 3, mobile demonstration
Clump weight 25 is equipped with block 3, one end that second sensor 12 is located on base 1 is equipped with electronic scale 8, and 1 both ends of base are symmetrical
Equipped with spacing terminal 2, the spacing terminal 2 of wherein one end is equipped with first sensor 9 on base 1, on the spacing terminal 2 of the other end
Equipped with second sensor 12, one end that base 1 is located at second sensor 12 is equipped with supporting rack 4, and supporting rack 4 is equipped with disk line roll shaft
22, it is respectively equipped with pulley blocks 5 on 4 end of supporting rack and spacing terminal 2 equipped with second sensor 12, the drawing on disk line roll shaft 22
Rope 6 is connected around the pulley blocks 5 on 4 end of supporting rack and spacing terminal 2 with mobile demonstration block 3, and wherein the one of mobile demonstration block 3
A underrun pulling force sensor 7 is connected with drawstring 6, and disk line roll shaft 22 is driven by motor 23, and 1 side of base is equipped with aobvious
Display screen 13,13 side of display screen are equipped with control button 14, savings power supply 21, processor 10 and timer are equipped with the base 1
11, processor 10 handles the information of electronic scale 8, first sensor 9, pulling force sensor 7 and second sensor 12 and passes through display
Screen 13 is shown.
Further, the exterior contour of support frame as described above 4 is L-shaped, and the L-shaped bending part of supporting rack 4 is equipped with disk line roll shaft 22, is driven
The motor 23 of Moving plate line roll shaft 22 is bi-directional drive motor 23.
Further, the mobile demonstration block 3 is hexagonal prism, and six sides of mobile demonstration block 3 are respectively leather bottom surface
15th, metal bottom surface 16, stone material bottom surface 17, rubber bottom surface 18, timber bottom surface 19 and PVC plastic bottom surface 20, leather bottom surface 15, metal
Bottom surface 16, stone material bottom surface 17, rubber bottom surface 18, the friction coefficient of timber bottom surface 19 and PVC plastic bottom surface 20 differ.
Further, 3 one end of the mobile demonstration block is equipped with end cap 24, and the counterweight of different weight is replaced by opening end cap 24
Block 25.
The present invention is not limited to the above-described embodiments, anyone should learn the present invention enlightenment under make with the present invention
With same or like technical solution, each fall within protection scope of the present invention.
The present invention be not described in detail technology, shape, construction part be known technology.
Claims (4)
1. a kind of physical study friction force demonstration device, including base, electronic scale, processor, timer and display screen, it is special
Sign is that the base is equipped with mobile demonstration block, and mobile demonstrate is equipped with clump weight in block, positioned at second sensor on base
One end is equipped with electronic scale, and the base both ends are arranged with spacing terminal, and the spacing terminal of wherein one end is equipped with the on base
One sensor, the spacing terminal of the other end are equipped with second sensor, and one end that base is located at second sensor is equipped with supporting rack,
Supporting rack is equipped with disk line roll shaft, and pulley blocks, disk are respectively equipped with supporting rack end and spacing terminal equipped with second sensor
Drawstring on line roll shaft is connected around the pulley blocks on supporting rack end and spacing terminal with mobile demonstration block, mobile demonstration block
One of underrun pulling force sensor is connected with drawstring, and disk line roll shaft is driven by motor, and the base side is equipped with aobvious
Display screen, display screen side are equipped with control button, and savings power supply, processor and timer, processor processing are equipped with the base
Electronic scale, the first sensing, the information of pulling force sensor and second sensor are simultaneously shown by display screen.
2. a kind of physical study friction force demonstration device according to claim 1, it is characterized in that：Outside support frame as described above
Contouring is L-shaped, and the L-shaped bending part of supporting rack is equipped with disk line roll shaft, and the motor of drive disk line roll shaft is bi-directional drive motor.
3. a kind of physical study friction force demonstration device according to claim 1, it is characterized in that：The mobile demonstration block
For hexagonal prism, six sides of mobile demonstration block are respectively leather bottom surface, metal bottom surface, stone material bottom surface, rubber bottom surface, timber
Bottom surface and PVC plastic bottom surface, leather bottom surface, metal bottom surface, stone material bottom surface, rubber bottom surface, timber bottom surface and PVC plastic bottom surface
Friction coefficient differs.
4. a kind of physical study friction force demonstration device according to claim 1, it is characterized in that：The mobile demonstration block
One end is equipped with end cap, and the clump weight of different weight is replaced by opening end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810101413.7A CN107993535A (en) | 2018-02-01 | 2018-02-01 | A kind of physical study friction force demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810101413.7A CN107993535A (en) | 2018-02-01 | 2018-02-01 | A kind of physical study friction force demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107993535A true CN107993535A (en) | 2018-05-04 |
Family
ID=62039945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810101413.7A Pending CN107993535A (en) | 2018-02-01 | 2018-02-01 | A kind of physical study friction force demonstration device |
Country Status (1)
| Country | Link |
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| CN (1) | CN107993535A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109493695A (en) * | 2018-11-09 | 2019-03-19 | 贵州民族大学 | A kind of physics teaching demonstration, test device |
| CN109637303A (en) * | 2019-02-26 | 2019-04-16 | 吕德盛 | A kind of frictional force study apparatus for demonstrating |
| CN109671339A (en) * | 2019-02-26 | 2019-04-23 | 马子羿 | A kind of frictional force experimental demonstration device |
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Patent Citations (12)
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| CN202929911U (en) * | 2012-11-22 | 2013-05-08 | 乐山师范学院 | Friction Demonstrator |
| CN203118303U (en) * | 2013-04-09 | 2013-08-07 | 齐高峰 | Friction force demonstration teaching aid |
| CN104715657A (en) * | 2015-04-02 | 2015-06-17 | 付嘉乐 | Physical electronic type tension weighing experiment demonstration instrument |
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| CN205104107U (en) * | 2015-10-26 | 2016-03-23 | 刘忠响 | Automatic ware of demonstrating of frictional force |
| CN205582336U (en) * | 2016-02-25 | 2016-09-14 | 吴善方 | Frictional force presentation device is used in teaching |
| CN205609072U (en) * | 2016-02-29 | 2016-09-28 | 刘毅 | Physical teaching is with probing frictional force presentation device |
| CN205899890U (en) * | 2016-06-03 | 2017-01-18 | 内蒙古大学 | Friction Demonstration Device for Physics Teaching |
| CN205943224U (en) * | 2016-06-12 | 2017-02-08 | 黄璟 | High school's mechanics railcar experimental apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109493695A (en) * | 2018-11-09 | 2019-03-19 | 贵州民族大学 | A kind of physics teaching demonstration, test device |
| CN109637303A (en) * | 2019-02-26 | 2019-04-16 | 吕德盛 | A kind of frictional force study apparatus for demonstrating |
| CN109671339A (en) * | 2019-02-26 | 2019-04-23 | 马子羿 | A kind of frictional force experimental demonstration device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180504 |