CN2088276U - Multi-functional solid rotating experimental model - Google Patents
Multi-functional solid rotating experimental model Download PDFInfo
- Publication number
- CN2088276U CN2088276U CN 91201435 CN91201435U CN2088276U CN 2088276 U CN2088276 U CN 2088276U CN 91201435 CN91201435 CN 91201435 CN 91201435 U CN91201435 U CN 91201435U CN 2088276 U CN2088276 U CN 2088276U
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- screw
- pole
- hole
- rotary disk
- set collar
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Abstract
The utility model relates to a multi-functional solid rotating experimental model, which is composed of a support stand and a rotary disk, wherein, a photoelectric switch is arranged on the base of the support stand. A slide block is arranged on the rotary disk, which enables the rotational inertia of the disk to alter. The exterior margin of the rotary disk is provided with a fan-shaped light shielding piece. When the light shielding piece passes through the photoelectric switch, the angular speed and the angular acceleration of the rotary disk can be measured. Thus, the multi-functional solid rotating experimental model can be used for completing the majority experiments of a solid teaching part. The utility model has the advantages that one machine has a plurality of functions, and experimental cost can be decreased.
Description
The utility model belongs to the teaching experimental apparatus.
The experiment of rotation of rigid device that uses is to be made of support, rotary disk at present, utilizes spark to play timer, the arc length that rigid body turns in measuring unit's time, thus utilize formula to calculate out the moment of inertia of rigid body.This experiment instrument can only be done the experiment of Measuring Moment of Inertia Using, can not do other several experiments of Rigid Body in Rotation With part, and range of application is narrower.
The purpose of this utility model is to provide a kind of experimental apparatus novel, that can carry out multinomial experiment of rotation of rigid.
As shown in Figure 1: the utility model is on the basis of support 3 rotary disks 1 structure, be provided with a photogate 2 in frame bottom, rotary disk with improve, its structure as shown in Figure 2, it is made of set collar 10 and slip ring 6, axle sleeve is arranged on the set collar, slip ring is enclosed within outside the set collar, with set collar be clearance fit, fan-shaped light barrier 13 is arranged on the outer rim of slip ring, prismatic pole 8 is arranged on the axle sleeve of set collar, there is a unidirectional bayonet lock 11 at the middle part of each pole, be with spring 9 on the pole, one end of spring is fixed on the bottom of pole, the other end connects a slide block with holes, the hole is on the axis of slide block, this slide block set is on pole, the Lower Half in hole is a prismatic on the slide block, and its size is corresponding with pole, and the first half is a screw, on set collar, one screw is arranged with each pole corresponding section, one screw 4 is arranged in the screw, and screw connects a clockwork spring 5, and this screw can link to each other with the screw on the slide block, there is one can block the gland that screw footpath is outwards moved on the slip ring, on the corresponding slip ring bar hole 14 arranged below the gland.
When this experiment instrument used, photogate need connect a digital millisecond meter, earlier each spring was elongated in the screw precession slide block screw, and the clockwork spring that link to each other with screw this moment is tightened, and gland was pressed on the screw again, and this moment, screw can not outwards move in the footpath.When beginning experiment to gland is promoted from the direction that screw leaves, and rotates whole rotary disk slip ring, and after gland broke away from screw, screw screwed out from slide block under the effect of clockwork spring elastic force gradually.This moment is by surveying the time of each light barrier by photogate.Quicken at the instant angular velocity and the angle that can obtain rotary disk, thereby can determine the moment of inertia of disk; The checking law of rotation; The checking kinetic energy theory.When screw and slide block disengaging, slide block is pulled to disc centre under the spring tension effect, after slide block was crossed unidirectional bayonet lock, slide block was fixed on the same circumference, measured instant angular velocity and angular acceleration under this state again, compare with previous state, can verify law of conservation of moment of momentum.
This experiment instrument also can be surveyed the angular velocity of physical pendulum, thereby can verify the law of conservation of mechanical energy.By surveying the vibration period of physical pendulum, can measure the moment of inertia of physical pendulum.This experiment instrument can be finished a plurality of experiments of rigid body teaching part by surveying the angular velocity of rotary rigid body, has the advantage of one-machine-multi-function, can reduce experimental cost, raises the efficiency.
Accompanying drawing 1 is the utility model profile synoptic diagram;
Accompanying drawing 2 is the rotary disk enlarged diagram, and the figure medi-spring is in elongated condition;
Accompanying drawing 3 is a slip ring gland place enlarged drawing.
Embodiment:
The rotary disk external diameter is 26 centimetres, weighs 2000 grams, and 4 prismatic poles are arranged on the set collar, and the screw corresponding with pole, gland also are 4, and the slide block on each pole is the cylindrical metal piece, and is high 4 centimetres, and 2.5 centimetres of diameters weigh 160 grams.Fan-shaped light barrier is that jack combines with slip ring, and the outer rim arc center of circle of light barrier is concentric with rotary disk.
Claims (3)
1, a kind of multi-functional solid moment experimental device, by support, rotary disk constitutes, it is characterized in that bracket base is provided with a photogate, rotary disk is made of set collar and slip ring, axle sleeve is arranged on the set collar, slip ring is enclosed within outside the set collar, with set collar be clearance fit, the slip ring outer rim has fan-shaped light barrier, prismatic pole is arranged on the axle sleeve of set collar, there is a unidirectional bayonet lock at the middle part of each pole, is with spring on the pole, and an end of spring is fixed on the root of pole, the other end connects a slide block, a hole is arranged on the axis of slide block, be enclosed within on the pole by the hole sliding shoe, the Lower Half in hole is the prismatic hole, its size is corresponding with prismatic pole, the first half in hole is a screw, with each pole corresponding section one screw is arranged on set collar, and a screw is arranged in the screw, screw connects a clockwork spring, this screw can link to each other with screw on the slide block, with set collar screw opposite position bar hole is arranged on the slip ring, and the top in hole has can block the gland that the screw footpath is outwards moved.
2, according to the said multi-functional solid moment experimental device of claim 1, it is characterized in that the pole on the rotary disk is 4, Dui Ying screw and the gland on the slip ring also are 4 with it.
3, according to the said multi-functional solid moment experimental device of claim 1, it is characterized in that the slide block on the rotary disk is made of metal, for cylindrical, the hole is at the center of cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91201435 CN2088276U (en) | 1991-01-26 | 1991-01-26 | Multi-functional solid rotating experimental model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91201435 CN2088276U (en) | 1991-01-26 | 1991-01-26 | Multi-functional solid rotating experimental model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2088276U true CN2088276U (en) | 1991-11-06 |
Family
ID=4912184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91201435 Withdrawn CN2088276U (en) | 1991-01-26 | 1991-01-26 | Multi-functional solid rotating experimental model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2088276U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606334A (en) * | 2013-12-02 | 2014-02-26 | 雷康 | Mechanical balance experiment instrument |
| CN104361792A (en) * | 2014-11-10 | 2015-02-18 | 皖西学院 | Rotational inertia measuring device |
-
1991
- 1991-01-26 CN CN 91201435 patent/CN2088276U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606334A (en) * | 2013-12-02 | 2014-02-26 | 雷康 | Mechanical balance experiment instrument |
| CN103606334B (en) * | 2013-12-02 | 2019-05-10 | 新昌县屹然智能科技有限公司 | Mechanical balance experiment instrument |
| CN104361792A (en) * | 2014-11-10 | 2015-02-18 | 皖西学院 | Rotational inertia measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |