CN102831800A - Apparatus for decomposing and demonstrating of force of suspension rope - Google Patents
Apparatus for decomposing and demonstrating of force of suspension rope Download PDFInfo
- Publication number
- CN102831800A CN102831800A CN 201110164512 CN201110164512A CN102831800A CN 102831800 A CN102831800 A CN 102831800A CN 201110164512 CN201110164512 CN 201110164512 CN 201110164512 A CN201110164512 A CN 201110164512A CN 102831800 A CN102831800 A CN 102831800A
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- CN
- China
- Prior art keywords
- pulley
- rope
- force
- decomposing
- demonstrating
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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.)
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Abstract
The invention discloses an apparatus for decomposing and demonstrating force of a suspension rope. The apparatus comprises: a storage box 1, a first lifting slot 2, a first pulley 3, a first pulley locating bolt 4, a first indicator 5, a first spring 6, a first zero adjusting bolt 7, a second zero adjusting bolt 8, a second spring 9, a second indicator 10, a second pulley locating bolt 11, a second pulley 12, a second lifting slot 13, a thin rope 14, a small pulley 15, a weight 16, a wooden plate 17 and a base 18. The apparatus has the following advantages that: analysis of theoretical force of the suspension rope is demonstrated by experiment demonstration, so that the analysis is perceptual and vivid. A board for decomposing and demonstrating force is mainly used for introducing the following questions: (1) decomposition of joint forces between two ropes and a third rope; (2) decomposition of force caused by fastening a rope with a hook of the small pulley on the rope; and (3) comparison of the difference of the questions (1) and (2). The apparatus disclosed by the invention can be easily understood by students according to knowledge of students, and has a good experiment effect; and in addition, the teaching board which can be operated easily and can demonstrate knowledge clearly is provided for teachers.
Description
Technical field:
The present invention relates to a kind of physics teaching demonstration teaching aid.
Background technology:
In high school physics resolution of force teaching now, also do not have ready-made teaching aid to use, this teaching aid can be used for covering the shortage.
Summary of the invention:
" outstanding rope resolution of force demonstrator " is a kind of teaching aid of demonstrating when being used for resolution of force exercise teaching.
Goal of the invention:
The invention provides a kind of can acceptance according to the students'knowledge level easily, and the device of good experiment effect is arranged; Concerning the teacher, provide can easy manipulation can say again demonstrator clearly.
The advantage of invention:
All adopt theoretical analysis, mathematic calculation in traditional teaching, the student does not allow understandable, and particularly mistake appears in distinguish repeatedly when problem (3) when solving a problem.Can come into plain view through the experimental demonstration student now, problem is readily solved.Outstanding rope resolution of force demonstrator mainly is used for demonstrating the following problem of explanation:
(1) by the resolution problem of two ropes and the 3rd joint forces that rope is formed;
(2) go up the placement small sheave by a rope and rope, resolution of force problem after fastening rope on the small sheave hook;
(3) difference of above two kinds of situation.
Description of drawings:
Accompanying drawing is the present invention's " outstanding rope resolution of force demonstrator " structural representation: by form label declaration among the figure like lower component: the 1-parcel tray; 2-up-down groove 1; 3-pulley 1; 4-pulley bolt 1; 5 ,-pointer 1; 6-spring 1; The 7-zero-bit is regulated bolt 1; The 8-zero-bit is regulated bolt 2; 9-spring 2; 10-pointer 2; 11-pulley bolt 2; 12-pulley 2; 13-up-down groove 2; The 14-cord; The 15-small sheave; The 16-counterweight; The 17-plank; The 18-base.
Embodiment: further specify the present invention below in conjunction with accompanying drawing and how to realize:
1-parcel tray: 120*100*40mm is used to place cord, counterweight etc.;
2-up-down groove 1: on plank, open the 5*150mm groove, can change bolt position and change angle between the cord to reach;
3-pulley 1: cord changes direction through pulley, makes spring be in plumbness all the time;
4-pulley bolt is used for fixing the position of left side pulley;
5 ,-and pointer 1: be used to amplify reading, increased visibility (the pointer end is indicated reading);
6-spring 1: the size of deformation size demonstration power;
The 7-zero-bit is regulated bolt: regulating spring zero graduation position;
The 8-zero-bit is regulated bolt: regulating spring zero graduation position;
9-spring 2: the size of deformation size demonstration power;
10-pointer 2: be used to amplify reading, increased visibility (the pointer end is indicated reading);
11-pulley bolt 2, the position of pulley on the right of being used for fixing;
12-pulley 2: cord changes direction through pulley, makes spring be in plumbness all the time;
13-up-down groove 2 is opened the 5*150mm groove on plank, can change bolt position and change angle between the cord to reach;
The 14-cord: be equipped with the cord of going up all lengths, operation for ease, little hook is loaded onto at two;
15-small sheave: on cord, be used to hang counterweight;
The 16-counterweight: in order to increase visual effect, make wooden counterweight by oneself, diameter 40mm, height 40mm, boring is with weight reduction on counterweight;
17-plank: size: 600*600*10mm;
18-base: size 600*200*10mm loads onto wooden little garden pin.
Claims (3)
1. pointer is that multiplying lever sways, and it is characterized in that utilizing pointer to rotate and amplifies, and has increased visibility;
2. vertical direction up-down groove is characterized in that utilizing the pulley bolt in groove, to slide up and down and changes the backguy angle;
3. wooden counterweight, middle punching is characterized in that weight reduction, increases the counterweight volume and reaches the increase visual effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110164512 CN102831800A (en) | 2011-06-17 | 2011-06-17 | Apparatus for decomposing and demonstrating of force of suspension rope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110164512 CN102831800A (en) | 2011-06-17 | 2011-06-17 | Apparatus for decomposing and demonstrating of force of suspension rope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102831800A true CN102831800A (en) | 2012-12-19 |
Family
ID=47334904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110164512 Pending CN102831800A (en) | 2011-06-17 | 2011-06-17 | Apparatus for decomposing and demonstrating of force of suspension rope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102831800A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299484A (en) * | 2014-10-16 | 2015-01-21 | 陈尚松 | Stress deformation demonstration instrument |
| CN107221234A (en) * | 2017-07-07 | 2017-09-29 | 江苏子辰教育设备有限公司 | One kind research elastic force extends relation instructional device with spring |
| CN108877425A (en) * | 2018-09-25 | 2018-11-23 | 周琳蓉 | A kind of high school physics study apparatus for demonstrating |
-
2011
- 2011-06-17 CN CN 201110164512 patent/CN102831800A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299484A (en) * | 2014-10-16 | 2015-01-21 | 陈尚松 | Stress deformation demonstration instrument |
| CN104299484B (en) * | 2014-10-16 | 2016-07-06 | 陈尚松 | Stress and deformation demonstrator |
| CN107221234A (en) * | 2017-07-07 | 2017-09-29 | 江苏子辰教育设备有限公司 | One kind research elastic force extends relation instructional device with spring |
| CN108877425A (en) * | 2018-09-25 | 2018-11-23 | 周琳蓉 | A kind of high school physics study apparatus for demonstrating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121219 |