CN206893153U - Centrifugation motion demonstrator based on teaching - Google Patents
Centrifugation motion demonstrator based on teaching Download PDFInfo
- Publication number
- CN206893153U CN206893153U CN201720400368.6U CN201720400368U CN206893153U CN 206893153 U CN206893153 U CN 206893153U CN 201720400368 U CN201720400368 U CN 201720400368U CN 206893153 U CN206893153 U CN 206893153U
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- CN
- China
- Prior art keywords
- demonstration
- fixing axle
- contrast
- rotating shaft
- ball
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of centrifugation motion demonstrator based on classroom instruction, including：Base, hand wheel, drive runner, fixing axle, rotating shaft, demonstration support, contrast demonstration ball, geometrical clamp, driving belt；The fixing axle is provided with 2, it is divided into left side fixing axle and right side fixing axle, described left side fixing axle and right side fixing axle is separately fixed at the left and right sides of base, the hand wheel is in the fixing axle of right side, the rotating shaft is in the fixing axle of left side, the demonstration support is connected in rotating shaft, the demonstration frame upper is provided with contrast demonstration ball, demonstration support bottom installation drives runner, the drive runner is connected by driving belt with hand wheel, and the geometrical clamp is fixed on beside contrast demonstration ball.Just making for this teaching aid is simple, has operable, shows that principle is cheer and bright, increases the interest of teaching, excites students ' interest of study, the ability of training student Inquiry Learning, meets the cognitive law of student.
Description
Technical field
It the utility model is related to teaching demonstration technical field, and in particular to a kind of centrifugation motion demonstrator based on teaching.
Background technology
The requirement of new curriculum reform, improve the mode of learning of student, advocate autonomous learning, cooperative learning and Inquiry Learning.This is just
It is required that teacher changes the teaching pattern that conventional student receives formula in teaching.In centrifugal motion this chapter, lead to mostly on classroom
Cross, the phenomenon in life, the derivation of formula, allow student to go to come to realize knowledge.The process of study remains the study of used knowledge, goes
The phenomenon in life is explained, rather than discovery rule, Rule Summary are gone by phenomenon.Student is in learning physicses centrifugal motion
During, substantially in development mathematical derivation ability, and despise the culture for understanding operational capability.
Just making for this teaching aid is simple, has operable, shows that principle is cheer and bright, increases the interest of teaching, excite
Students ' interest of study, the ability of training student Inquiry Learning, meet the cognitive law of student.In consideration of it, propose the application.
Utility model content
Technical problem to be solved in the utility model be to provide it is a kind of it is simple in construction, be easy to carry, contrast clear base
In the centrifugation motion demonstrator of teaching.
Technical problem to be solved in the utility model is realized using following technical scheme：
A kind of centrifugation motion demonstrator based on classroom instruction, it is characterised in that including：Base, hand wheel, band turn
Wheel, fixing axle, rotating shaft, demonstration support, contrast demonstration ball, geometrical clamp, driving belt；The fixing axle is provided with 2, and it is solid to be divided into left side
Dead axle and right side fixing axle, described left side fixing axle and right side fixing axle are separately fixed at the left and right sides of base, the hand
Turn wheel is in the fixing axle of right side, and in the fixing axle of left side, the demonstration support is connected in rotating shaft, described for the rotating shaft
Demonstration frame upper is provided with contrast demonstration ball, and demonstration support bottom installation drives runner, and the drive runner passes through company
Dynamic band is connected with hand wheel, and the geometrical clamp is fixed on beside contrast demonstration ball.
The demonstration support is fixed together with rotating shaft, whole support is had identical angular speed, is easy to control variable.
Fixed knob is provided with the rotating shaft.
The contrast demonstration ball is provided with four, is divided into No. 1 ball, No. 2 balls, No. 3 balls and No. 4 balls.
The demonstration frame upper is connected with triangle demonstration ball mounting bracket, triangle demonstration ball mounting bracket base court
Upper setting.
The demonstration pedestal upper end is connected to the centre position on triangle demonstration ball mounting bracket base, wherein 2 contrasts are drilled
Show that ball is arranged on the base of triangle demonstration ball mounting bracket, 2 contrast demonstration balls are separately positioned on triangle demonstration ball in addition
On two sides of mounting bracket, contrast demonstration ball, contrast two-by-two, experimental phenomena becomes apparent from；The position of wherein geometrical clamp is adjustable, passes through
Change to the position of geometrical clamp, different Experimental comparisons can be carried out.
Than No. 2 ball weights of No. 1 ball, can carry out the experiment about quality.
The beneficial effects of the utility model are：The utility model material is common easily to be sought, and makes simply, past heritage can also be used and change
Make, there is operability, show that principle is cheer and bright, increase the interest of teaching, excite students ' interest of study, training student is visited
Study carefully the ability of study, meet the cognitive law of student.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Embodiment
In order that technological means, creation characteristic, reached purpose and effect that the utility model is realized are easy to understand, under
Face combines and is specifically illustrating, and the utility model is expanded on further.
As shown in figure 1, a kind of centrifugation motion demonstrator based on classroom instruction, including：Base 1, hand wheel 2, drive
Runner 3, left side fixing axle 11, right side fixing axle 4, rotating shaft 5, demonstration support 6, contrast demonstration ball 7, geometrical clamp 8, driving belt 9；It is left
Side fixing axle 11 and right side fixing axle 4 are separately fixed at the left and right sides of base 1, and hand wheel 3 is mounted in right side fixing axle 4,
In left side fixing axle 11, demonstration support 6 is fixed together with rotating shaft 5 for rotating shaft 5, makes whole support have identical angle fast
Degree, it is easy to control variable, fixed knob 10 is provided with rotating shaft 5.Demonstration support 6 top is provided with contrast demonstration ball 7, demonstration branch
The installation of the bottom of frame 6 drives runner 3, drives runner 3 to be connected by driving belt 9 with hand wheel 2, geometrical clamp 8 is fixed on contrast and drilled
Show the side of ball 7.Contrast demonstration ball 7 is provided with four, is divided into No. 1 ball, No. 2 balls, No. 3 balls and No. 4 balls.Demonstrate the connection of the top of support 6
There is triangle demonstration ball mounting bracket 12, the base of triangle demonstration ball mounting bracket 12 is set upward.Demonstrate the connection of the upper end of support 6
In the centre position on the base of triangle demonstration ball mounting bracket 12, wherein 2 contrast demonstration balls are arranged on triangle demonstration ball installation
On the base of frame 12,2 contrast demonstration balls are arranged on two sides of triangle demonstration ball mounting bracket 12 in addition, contrast demonstration
Ball, contrast two-by-two, experimental phenomena becomes apparent from；The position of wherein geometrical clamp 8 is adjustable, can by the change of the position to geometrical clamp 8
To carry out different Experimental comparisons.
The utility model has following functions：
1st, teaching demonstration
Surely 1,2, No. 3 three beads are lived, gradually increases angular speed by rotating handwheel, observes No. 4 beads, then can draw and turn
Dynamic speed is bigger, easier generation centrifugal motion.
Surely 1, No. 2 two beads are lived, during starting, than No. 2 bead radiuses of gyration of the radius of gyration of No. 3 beads are big, by turn
Start to take turns control angular speed, observe 3, No. 4 beads, then can show that the radius of gyration is bigger, easier generation centrifugal motion.
Surely 3, No. 4 two beads are lived, during starting, the radius of gyration of No. 1 bead and No. 2 beads is identical, by rotating handwheel
Angular speed is controlled, observes 1, No. 2 beads, then it is bigger to obtain mass, easier generation centrifugal motion.
2nd, start to put into practice
Classmates oneself can carry out Experimental Research by the utility model by control variate method.The utility model system
It is simple to make method, material is easily sought, and either teacher or classmate can start to do, and has operation possibility.
3rd, environmental protection education
This world does not have rubbish, the resource only mislayed.The model of this teaching aid, do base with waste and old plank, use
The hand wheel and drive runner, fixing axle and demonstration support then to be transformed with waste and old elongate rod that waste and old kite reel transformation forms
Form, contrast demonstration ball, the driving belt worked as geometrical clamp with long-tail ticket holder, made of electric wire are made of the table tennis of different colours.Pass through
The waste that simple transformation allows in life provides the value of itself with new face again.
The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (6)
- A kind of 1. centrifugation motion demonstrator based on classroom instruction, it is characterised in that including：Base, hand wheel, drive runner, Left side fixing axle, right side fixing axle, rotating shaft, demonstration support, contrast demonstration ball, geometrical clamp, driving belt, described left side fixing axle The left and right sides of base is separately fixed at right side fixing axle, the hand wheel is in the fixing axle of right side, the rotating shaft dress In the fixing axle of left side, the demonstration support is connected in rotating shaft, and the demonstration frame upper is provided with contrast demonstration ball, described Demonstrate the installation of support bottom and drive runner, the drive runner is connected by driving belt with hand wheel, and the geometrical clamp is fixed Beside contrast demonstration ball.
- 2. the centrifugation motion demonstrator according to claim 1 based on classroom instruction, it is characterised in that：The demonstration support It is fixed together with rotating shaft.
- 3. the centrifugation motion demonstrator according to claim 2 based on classroom instruction, it is characterised in that：Set in the rotating shaft It is equipped with fixed knob.
- 4. the centrifugation motion demonstrator according to claim 1 based on classroom instruction, it is characterised in that：The contrast demonstration Ball is provided with four.
- 5. the centrifugation motion demonstrator according to claim 1 based on classroom instruction, it is characterised in that：The demonstration support Top is connected with triangle demonstration ball mounting bracket, and triangle demonstration ball mounting bracket base is set upward.
- 6. the centrifugation motion demonstrator according to claim 5 based on classroom instruction, it is characterised in that：The demonstration support Upper end is connected to the centre position on triangle demonstration ball mounting bracket base, wherein 2 contrast demonstration balls are arranged on triangle demonstration On the base of ball mounting bracket, 2 contrast demonstration balls are separately positioned on two sides of triangle demonstration ball mounting bracket in addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720400368.6U CN206893153U (en) | 2017-04-17 | 2017-04-17 | Centrifugation motion demonstrator based on teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720400368.6U CN206893153U (en) | 2017-04-17 | 2017-04-17 | Centrifugation motion demonstrator based on teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206893153U true CN206893153U (en) | 2018-01-16 |
Family
ID=61323719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720400368.6U Expired - Fee Related CN206893153U (en) | 2017-04-17 | 2017-04-17 | Centrifugation motion demonstrator based on teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206893153U (en) |
-
2017
- 2017-04-17 CN CN201720400368.6U patent/CN206893153U/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: 20180116 Termination date: 20190417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |