CN2512063Y - Demonstration device for the principle of conservation of angular momentum - Google Patents
Demonstration device for the principle of conservation of angular momentum Download PDFInfo
- Publication number
- CN2512063Y CN2512063Y CN01254683U CN01254683U CN2512063Y CN 2512063 Y CN2512063 Y CN 2512063Y CN 01254683 U CN01254683 U CN 01254683U CN 01254683 U CN01254683 U CN 01254683U CN 2512063 Y CN2512063 Y CN 2512063Y
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- China
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- pair
- rotating disk
- rotating disc
- back shaft
- fixed
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Abstract
The utility model provides a demonstration device for the principle of conservation of angular momentum, comprising a frame, a rotating disc component, a mechanical demonstration component and an operation drive component, wherein, the rotating disc component comprises a rotating disc and a support shafting which has a top end fixed with the rotating disc and a bottom end passing through and fixed on the frame; the mechanical demonstration component comprises an erecting pole, a pair of sliding poles and a pair of flying wing sliding blocks; the erecting pole is vertically fixed on the rotating disc, the pair of sliding poles are symmetrically arranged on both sides of the erection pole; the pair of flying wing sliding blocks are respectively encased in a sliding pole; the operation drive component comprises a driving lever, a support sleeve and an operation disc arranged on a top end of the driving lever; the support sleeve is fixed on the rotating disc; the utility model also comprises a driving gear and a driven gear which are meshed with each other, the driving gear is fixed on a bottom part of the driving lever and the driven gear is encased outside the support shafting. A participant sits on a chair and operates the disc by hands, the driving lever drives the driving gear to rotate, the driving gear drives the driven gear to rotate, the driven gear drives the rotating disc to rotate, as a result of which, all parts on the rotating disc rotate.
Description
Technical field
The utility model relates to a kind of teaching aid that participates in demonstrating physical phenomenon, relates in particular to a kind of device that participates in demonstrating conservation of angular momentum principle.
Background technology
The teaching of relevant theorem of angular momentum in the physics, the past is to adopt the illustrated method in plane always, the student is difficult for grasping.
Summary of the invention
The purpose of this utility model is in order to overcome the defective of existing teaching theorem of angular momentum, and provide a kind ofly utilize specific method of operating, the displaying angular momentum is kept the principles of science of weighing apparatus, decapacitation discloses the specific physical principle in some phenomenons (as ice dancing, ballet etc.) in the daily life, can allow undergo a kind of device that participates in demonstrating conservation of angular momentum principle of teaching through lively activities of relevant theorem of angular momentum of operator again.
The purpose of this utility model is achieved in that a kind of device that participates in demonstrating conservation of angular momentum principle, is characterized in, comprises a support, a disk part, machinery demonstration parts and an operation drive disk assembly;
Described disk part comprises rotating disk and back shaft system, and the top and the rotating disk bottom centre of this back shaft system are connected, and its bottom is passed through the center of support and is fixed on the support;
Described machinery demonstration parts comprise a vertical rod, a pair of litter and a pair of all-wing aircraft slide block; This vertical rod vertically is installed on the rotating disk, and a pair of litter lateral symmetry is located at the vertical rod both sides; A pair of all-wing aircraft slide block is set in respectively on the litter;
Described operation drive disk assembly comprises drive link, is enclosed within the operation wheel disc that the outer supporting sleeve and of drive link is located at the drive link top; The lower end of described supporting sleeve is passed through the rotating disk bottom and is fixed on the rotating disk; Also comprise a pair of driving gear that is meshed and follower gear, driving gear is fixed on the drive link bottom that is positioned under the rotating disk, and follower gear is set in outside the back shaft system between rotating disk and support.
Above-mentioned a kind of device that participates in demonstrating conservation of angular momentum principle, wherein, the back shaft of described disk part system comprises back shaft and axle sleeve, described axle sleeve is enclosed within outside the back shaft.
Above-mentioned a kind of device that participates in demonstrating conservation of angular momentum principle wherein, also is installed with a seat for operator's seat on the described rotating disk.
Because the utility model has adopted above technical scheme, the participant is sitting on the seat of rotating disk, hand operation operation wheel disc, rotate main drive gear by drive link, the drive follower gear rotates, thereby make the rotating disk rotation, all parts on the rotating disk (comprising the operation participant who is sitting on the rotating disk seat) are rotation and then; When the position of participant's slip all-wing aircraft slide block,, can change the rotating speed of apparatus for demonstrating according to conservation of angular momentum principle with dial rotation.Thereby participate in having demonstrated theorem of angular momentum.
Description of drawings
Concrete structure of the present utility model is further provided by following embodiment and accompanying drawing thereof.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is A-A cut-open view of Fig. 1.
Embodiment
See also Fig. 1, Fig. 2.A kind of device that participates in demonstrating conservation of angular momentum principle of the utility model.This kind device offers rotatable rotating table system of experiencer.The utility model device comprises a support 1, a disk part 2, machinery demonstration parts 3 and an operation drive disk assembly 4.
Disk part 2 comprises that rotating disk 21 and back shaft are 22, and this back shaft is that 22 top and rotating disk bottom centre are connected, and its bottom is passed through the center of support 1 and is fixed on the support 1.The back shaft of described disk part is 22 to comprise back shaft 221 and axle sleeve 222, and described axle sleeve 222 is enclosed within outside the back shaft 221.Also be installed with a seat 23 for operator's seat on this rotating disk.
Machinery demonstration parts 3 comprise a vertical rod 31, a pair of litter 32 and a pair of all-wing aircraft slide block 33; This vertical rod 31 vertically is installed on the rotating disk 21, and a pair of litter 32 lateral symmetry are located at vertical rod 31 both sides; A pair of all-wing aircraft slide block 33 is set in respectively on the litter 32.
Operation drive disk assembly 4 comprises drive link 41, is enclosed within the operation wheel disc 43 that drive link 41 outer supporting sleeves 42 and are located at the drive link top.The lower end of supporting sleeve 42 is passed through rotating disk 21 bottoms and is fixed on the rotating disk 21.Also comprise a pair of driving gear that is meshed 44 and follower gear 45, driving gear 44 is fixed on the bottom of the drive link 41 that is positioned under the rotating disk, and it is outside 22 that driven tooth 45 is taken turns the back shaft that is set between rotating disk and support.
The participant is sitting on the rubber and stirs wheel disc to initial torque of rotating disk with hand, and this initial torque will cause the increase of disc angle momentum, rotates thereby drive disk part by gear drive.In rotation process the participant decontrol the operation wheel disc with slide block to lira or to extrapolation, according to conservation of angular momentum principle (that is: when the suffered bonding force square of research object is zero, the conservation of angular momentum of system is constant), the variation of rotational speed will be produced, this variation is: if slide block to when extrapolation the experiencer with the rotating disk rotational speed with slack-off, and slide block rotational speed when lira will accelerate.
The utility model is simple in structure, and is easy to operate, and demonstration conservation of angular momentum principle is directly perceived, in teaching through lively activities to the participant, thereby improves the participant especially confidence and the enjoyment of teenager's Scientific exploration technology.
Claims (3)
1, a kind of device that participates in demonstrating conservation of angular momentum principle is characterized in that, comprises a support, a disk part, machinery demonstration parts and an operation drive disk assembly;
Described disk part comprises rotating disk and back shaft system, and the top and the rotating disk bottom centre of this back shaft system are connected, and its bottom is passed through the center of support and is fixed on the support;
Described machinery demonstration parts comprise a vertical rod, a pair of litter and a pair of all-wing aircraft slide block; This vertical rod vertically is installed on the rotating disk, and a pair of litter lateral symmetry is located at the vertical rod both sides; A pair of all-wing aircraft slide block is set in respectively on the litter;
Described operation drive disk assembly comprises drive link, is enclosed within the operation wheel disc that the outer supporting sleeve and of drive link is located at the drive link top; The lower end of described supporting sleeve is passed through the rotating disk bottom and is fixed on the rotating disk; Also comprise a pair of driving gear that is meshed and follower gear, driving gear is fixed on the drive link bottom that is positioned under the rotating disk, and follower gear is set in outside the back shaft system between rotating disk and support.
2, a kind of device that participates in demonstrating conservation of angular momentum principle according to claim 1 is characterized in that, the back shaft system of described disk part comprises back shaft and axle sleeve, and described axle sleeve is enclosed within outside the back shaft.
3, a kind of device that participates in demonstrating conservation of angular momentum principle according to claim 1 wherein, also is installed with a seat for operator's seat on the described rotating disk.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN01254683U CN2512063Y (en) | 2001-11-14 | 2001-11-14 | Demonstration device for the principle of conservation of angular momentum |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN01254683U CN2512063Y (en) | 2001-11-14 | 2001-11-14 | Demonstration device for the principle of conservation of angular momentum |
Publications (1)
Publication Number | Publication Date |
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CN2512063Y true CN2512063Y (en) | 2002-09-18 |
Family
ID=33663951
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN01254683U Expired - Fee Related CN2512063Y (en) | 2001-11-14 | 2001-11-14 | Demonstration device for the principle of conservation of angular momentum |
Country Status (1)
Country | Link |
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CN (1) | CN2512063Y (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102556639A (en) * | 2011-12-13 | 2012-07-11 | 苏州工业园区高登威科技有限公司 | Retaining plate horizontal position adjusting device |
CN102938226A (en) * | 2012-11-27 | 2013-02-20 | 上海师范大学 | Comprehensive demonstration instrument for demonstrating angular momentum conservation and rotational inertia and demonstrating method thereof |
CN104217631A (en) * | 2014-09-10 | 2014-12-17 | 中国地质大学(武汉) | Combined angular momentum theorem demonstrator |
-
2001
- 2001-11-14 CN CN01254683U patent/CN2512063Y/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102556639A (en) * | 2011-12-13 | 2012-07-11 | 苏州工业园区高登威科技有限公司 | Retaining plate horizontal position adjusting device |
CN102938226A (en) * | 2012-11-27 | 2013-02-20 | 上海师范大学 | Comprehensive demonstration instrument for demonstrating angular momentum conservation and rotational inertia and demonstrating method thereof |
CN104217631A (en) * | 2014-09-10 | 2014-12-17 | 中国地质大学(武汉) | Combined angular momentum theorem demonstrator |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |