CN103971566B - Circular motion synthesis experiment platform - Google Patents
Circular motion synthesis experiment platform Download PDFInfo
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- CN103971566B CN103971566B CN201410242351.3A CN201410242351A CN103971566B CN 103971566 B CN103971566 B CN 103971566B CN 201410242351 A CN201410242351 A CN 201410242351A CN 103971566 B CN103971566 B CN 103971566B
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- fixed
- main shaft
- circular motion
- box style
- speed
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Abstract
The invention discloses a kind of circular motion synthesis experiment platform and belong to education or demonstration equipment；Especially for the experimental provision of circular motion in demonstration physics.This circular motion synthesis experiment platform, it is characterized in that: include box style substructure, the power set being arranged in box style substructure, the horizontal plane inner periphery motion demonstrating device being arranged on box style substructure table top, centripetal force test device, the invention has the beneficial effects as follows that this experiment porch can complete the typical circular motion in multinomial horizontal plane, the phenomenon of the most peculiar power, such as side attachment phenomenon, i.e. side elastic force provide centripetal force to verify.By control variate method, verify the relation of centripetal force, quality, rotating speed, radius more accurately.Equipment is visual in image, simple in construction, provides a kind of Novel teaching aid for middle school physics teaching.
Description
Technical field
The invention belongs to education or demonstration equipment；Especially for circular motion in demonstration physics
Experimental provision.
Background technology
Circular motion is important physical motion, contacts application in productive life widely, but
At present, about the experimental demonstration equipment of circular motion, function is simple, single, substantially stops
In qualitative aspect.The phenomenon of the power typical, peculiar to some cannot show student on classroom
It is real that (such as side attachment phenomenon, i.e. side elastic force provide centripetal force) can only allow student contact life
Border, carries out space imagination.CN203480737U discloses one and probes into centripetal force demonstrator, its
Structure is to be fixed in bearing inner race by reducing motor, and iron rod is fixing with the inner ring of bearing to be connected, connection
Axial organ is connected by band iron is fixing with the outer ring of bearing, and the outer ring of bearing is fixing with cant beam to be connected, institute
State cant beam symmetrically placed relative to bearing, cant beam be fixedly arranged above metal trough, one end of metal trough is fixed
Having miniature electronic to claim, described miniature electronic claims vertically to place, and the lower position that miniature electronic claims is corresponding
It is placed with portable speed-measuring instrument.Being only capable of demonstrating the size of centripetal force, CN203134213U discloses
A kind of centripetal force experimental provision, including base, pallet, ergometer, rotation wheel, swingle and
Variable speed electric motors, particularly, described base is rectangular frame structure, installs pallet at side top horizontal, another
Ergometer is installed in side, installs variable speed electric motors, particularly in the base inside section；Described pallet is disc-shaped structure,
Installing below the center of circle and rotate wheel, the top rotating wheel is placed on end face through the pallet center of circle, is rotating
Installation swingle is crossed on wheel top, installs centrifugal globe at swingle one end sleeve；Rotate wheel and speed change
Motor is connected by belt conduction device；Hole is offered, through hole at the longitudinal axis center rotating wheel
Hole introduces a draught line；One end of described draught line is connected with centrifugal globe, the other end and ergometer
Connect.The most only being only capable of displaying the relation of centripetal force and rotating speed, CN202013680U discloses one
Multifunctional centripetal force measuring rotary table, although compared with prior art, uses variable-frequency power sources to drive and synchronizes
The mode of motor realizes uniform rotation, speed governing and meter speed and settles at one go, it is not necessary to electromagnetism or photoelectricity
Speed measuring device；Utilize handheld electronic scale to replace spring scale or pulling force sensor, thus eliminate DIS
Experimental system；Replace crossbeam with rotating disk, it is not necessary to counterweight, make rotation more stable.But cannot drill
Show the experiment that planar circumferential is moved.
Summary of the invention
In order to overcome existing experimental facilities function singleness, be not suitable for the deficiency that middle school teaching uses,
The present invention provides a kind of circular motion synthesis experiment platform, and this circular motion synthesis experiment platform is not only
Can qualitative demonstration various circular motion phenomenon, and measurement centripetal force that can be quantitative.
The technical solution adopted for the present invention to solve the technical problems is: a kind of circular motion is comprehensively real
Test platform, it is characterized in that: include box style substructure, the power set being arranged in box style substructure, peace
The horizontal plane inner periphery motion demonstrating device being contained on box style substructure table top, centripetal force test device,
Described power set include that motor and the arrangements for speed regulation and the power supply that control motor speed leave
Closing, motor shaft uses spiral sleeve to be connected in the bearing being arranged on box style substructure table top with main shaft,
Described horizontal plane inner periphery motion demonstrating device includes the circular non-opaque being fixed on main shaft
Tank, this bottom of gullet fixed speed cycle dish, it is placed mobilizable test block in groove.
Described centripetal force test device includes the upper horizontal slide rail being fixed on main shaft, lower horizontal cunning
Rail, cylindrical slider is enclosed within upper, lower horizontal on slide rail, on upper, lower horizontal main shaft between slide rail
Fixed dynamometry cross bar, equipped with dynamometer spring between dynamometry cross bar and cylindrical slider, horizontal slide rail
On the box style substructure table top of lower section, rule and spring scale panel are installed.
Described spindle top is provided with groove, and groove is built with the swing ball being connected to cotton rope.
Described horizontal plane inner periphery motion demonstrating device also includes side attachment phenomenon demonstrator,
This device is by the fixed mount being fixed on main shaft and the L-type metal support that can move up and down in fixed mount
Frame forms, and the horizontal component front end of L-type metal bracket is U-shaped.
Described centripetal force test device also includes cylindrical slider movement locus recording equipment, this note
Recording device is by the plunger displacement pump being fixed on main shaft and connects plunger displacement pump and cylindrical slider bottom tip
Transparent small hose forms, and hose end is equipped with injection needle.
Described arrangements for speed regulation are inductance arrangements for speed regulation, electrically-actuated throttle device or RHVC.
Described upper horizontal slide rail is equipped with mass fixed on the rightabout of cylindrical slider.
Described cylindrical slider is made up of slide block core and the slide block set covering on slide block core appearance, slide block
Set can individually take off.
The using method of the present invention is: 1. place unlike material and matter in the bottom of circular non-opaque tank
Amount test block, start motor make circular non-opaque tank rotate, it can be observed that under different rotating speeds from
The difference of mental and physical efforts, 2. mentions L-type metal bracket and puts at circular non-opaque inboard wall of cistern at bracket
Put the test block that elastomeric material is made, then start motor and make the rotation of circular non-opaque tank fall L-type
Metal bracket, it can be observed that the test block that elastomeric material is made when rotating speed reaches certain speed by
Effect in side elastic force, frictional force is attached to circular non-opaque inboard wall of cistern and does not falls out, 3. from master
Take out swing ball in the groove of axle, start motor and make main shaft rotate it is observed that rotating speed is different, tie up to
The drift angle of the circular cone track that cotton rope on swing ball is formed is different, 4. by control variate method, verify to
Mental and physical efforts, quality, rotating speed, radius relationship experiments time, direct cycle dish viewed from above, read
Cycle.Regulated the rotating speed of motor by speed-regulating switch, can read on cycle dish 0.4s, 0.5s,
The different cycles value of 0.6s, 0.8s, 1.0s, 1.2s.Water is sucked, when regulating motor in plunger displacement pump
Rotating speed, the cycle stability on cycle dish, when a certain numerical value, quickly touches the piston of plunger displacement pump,
Water passes through transparent small hose, from the entry needle being fixed on cylindrical slider bottom and being arranged on hose end
Head ejection, is sprinkled upon on spring scale panel and the rule of box style substructure table top.By reading spring scale
Panel, the numerical value of rule, can read the spring tension suffered by cylindrical slider, and motion half
Footpath.And slide block core quality 0.1Kg of cylindrical slider, slide block set quality 0.05Kg, dismounting is sliding
Block can change the quality of object of study very easily.
The invention has the beneficial effects as follows that this experiment porch can complete typical case's circle of multinomial horizontal plane energy
Zhou Yundong, the phenomenon of the most peculiar power, such as side attachment phenomenon, i.e. side elastic force provide
Centripetal force is verified.By control variate method, verify more accurately centripetal force, quality, rotating speed,
The relation of radius.Equipment is visual in image, simple in construction, provides one for middle school physics teaching
Novel teaching aid.
Accompanying drawing explanation
Fig. 1 is the vertical section structural map of the present invention,
Fig. 2 is the left view of Fig. 1,
Fig. 3 is the top view of Fig. 1,
Fig. 4 is the circuit theory diagrams of the present invention.
In figure, 1. motor, 2. arrangements for speed regulation, 3. on and off switch, 4. power supply, 5. motor shaft, 6. case
Formula base table top, 7. bearing, 8. time horizontal slide rail, 9. dynamometry cross bar, 10. mass, horizontal on 11.
To slide rail, 12. main shafts, 13. cycle dishes, 14. circular non-opaque tanks, 15. unit of plastics, 16.L type gold
Belonging to bracket, 17. fixed mounts, 18. grooves, 19. plunger displacement pumps, 20. transparent small hoses, 21. is cylindrical sliding
Block, 211. slide block cores, 212. slide block sets, 22. dynamometer springs, 23. rules, 24. spring scale panels,
25. swing balls.
Detailed description of the invention
The detailed description of the invention of the present invention is, as shown in the figure:
Embodiment 1, a kind of circular motion synthesis experiment platform, it is characterized in that: include box style substructure,
The power set being arranged in box style substructure, the horizontal plane inner circle being arranged on box style substructure table top 6
All motion demonstrating device, centripetal force test device,
Described power set include motor 1 and control the inductance type arrangements for speed regulation 2 of motor speed with
And on and off switch 3, motor shaft 5 uses spiral sleeve to be connected with main shaft 12 and is arranged on box style substructure platform
In bearing 7 on face,
Described horizontal plane inner periphery motion demonstrating device includes the circular non-opaque being fixed on main shaft
Tank 14, this bottom of gullet fixed speed cycle dish 13, it is placed mobilizable test block in groove.
Upper horizontal slide rail 11 that described centripetal force test device includes being fixed on main shaft, lower laterally
Slide rail 8, cylindrical slider 21 is enclosed within upper, lower horizontal on slide rail, and upper, lower horizontal is between slide rail
Fixed dynamometry cross bar 9 on main shaft, equipped with dynamometer spring 22 between dynamometry cross bar and cylindrical slider,
Laterally on the box style substructure table top below slide rail, rule 23 and spring scale panel 24 are installed.
Embodiment 2, a kind of circular motion synthesis experiment platform, it is characterized in that: include box style substructure,
The power set being arranged in box style substructure, the horizontal plane inner circle being arranged on box style substructure table top 6
All motion demonstrating device, centripetal force test device,
Described power set include motor 1 and control the electronic type arrangements for speed regulation 2 of motor speed with
And on and off switch 3, motor shaft 5 uses spiral sleeve to be connected with main shaft 12 and is arranged on box style substructure platform
In bearing 7 on face,
Described horizontal plane inner periphery motion demonstrating device includes the circular non-opaque being fixed on main shaft
Tank 14, this bottom of gullet fixed speed cycle dish 13, it is placed mobilizable test block in groove.
Upper horizontal slide rail 11 that described centripetal force test device includes being fixed on main shaft, lower laterally
Slide rail 8, cylindrical slider 21 is enclosed within upper, lower horizontal on slide rail, and upper, lower horizontal is between slide rail
Fixed dynamometry cross bar 9 on main shaft, equipped with dynamometer spring 22 between dynamometry cross bar and cylindrical slider,
Laterally on the box style substructure table top below slide rail, rule 23 and spring scale panel 24 are installed.
Described spindle top is provided with groove 18, and groove is built with the swing ball 25 being connected to cotton rope.
Described horizontal plane inner periphery motion demonstrating device also includes side attachment phenomenon demonstrator,
This device is by the fixed mount 17 being fixed on main shaft and the L-type metal that can move up and down in fixed mount
Bracket 16 forms, and the horizontal component front end of L-type metal bracket is U-shaped.
Embodiment 3, a kind of circular motion synthesis experiment platform, it is characterized in that: include box style substructure,
The power set being arranged in box style substructure, the horizontal plane inner circle being arranged on box style substructure table top 6
All motion demonstrating device, centripetal force test device,
Described power set include motor 1 and the RHVC 2 controlling motor speed and
On and off switch 3, motor shaft 5 uses spiral sleeve to be connected with main shaft 12 and is arranged on box style substructure table top
On bearing 7 in,
Described horizontal plane inner periphery motion demonstrating device includes the circular non-opaque being fixed on main shaft
Tank 14, this bottom of gullet fixed speed cycle dish 13, it is placed mobilizable test block in groove.
Upper horizontal slide rail 11 that described centripetal force test device includes being fixed on main shaft, lower laterally
Slide rail 8, cylindrical slider 21 is enclosed within upper, lower horizontal on slide rail, and upper, lower horizontal is between slide rail
Fixed dynamometry cross bar 9 on main shaft, equipped with dynamometer spring 22 between dynamometry cross bar and cylindrical slider,
Laterally on the box style substructure table top below slide rail, rule 23 and spring scale panel 24 are installed.
Described spindle top is provided with groove 18, and groove is built with the swing ball 25 being connected to cotton rope.
Described horizontal plane inner periphery motion demonstrating device also includes side attachment phenomenon demonstrator,
This device is by the fixed mount 17 being fixed on main shaft and the L-type metal that can move up and down in fixed mount
Bracket 16 forms, and the horizontal component front end of L-type metal bracket is U-shaped.
Described centripetal force test device also includes cylindrical slider movement locus recording equipment, this note
Recording device is by the plunger displacement pump 19 being fixed on main shaft and connects point bottom plunger displacement pump and cylindrical slider
The transparent small hose 20 of end forms.
Described upper horizontal slide rail is equipped with mass fixed on the rightabout of cylindrical slider
10.Described cylindrical slider is by slide block core 211 and the slide block set 212 groups covering on slide block core appearance
Becoming, slide block set can individually take off.
Claims (6)
1. a circular motion synthesis experiment platform, is characterized in that: include box style substructure, is arranged on
Power set in box style substructure, the horizontal plane inner periphery being arranged on box style substructure table top motion is drilled
Showing device, centripetal force test device,
Described power set include that motor and the arrangements for speed regulation and the power supply that control motor speed leave
Closing, motor shaft uses spiral sleeve to be connected in the bearing being arranged on box style substructure table top with main shaft,
Described horizontal plane inner periphery motion demonstrating device includes the circular non-opaque being fixed on main shaft
Tank, this bottom of gullet fixed speed cycle dish, it is placed mobilizable test block in groove,
Described centripetal force test device includes the upper horizontal slide rail being fixed on main shaft, lower horizontal cunning
Rail, cylindrical slider is enclosed within upper, lower horizontal on slide rail, on upper, lower horizontal main shaft between slide rail
Fixed dynamometry cross bar, equipped with dynamometer spring between dynamometry cross bar and cylindrical slider, horizontal slide rail
On the box style substructure table top of lower section, rule and spring scale panel are installed,
Described spindle top is provided with groove, groove built with being connected to the swing ball of cotton rope,
Described horizontal plane inner periphery motion demonstrating device also includes side attachment phenomenon demonstrator,
This side attachment phenomenon demonstrator is by the fixed mount being fixed on main shaft and can in fixed mount up and down
The L-type metal bracket composition of motion, the horizontal component front end of L-type metal bracket is U-shaped.
Circular motion synthesis experiment platform the most according to claim 1, is characterized in that: described
Centripetal force test device also include cylindrical slider movement locus recording equipment, this recording equipment by
The plunger displacement pump being fixed on main shaft and the transparent jewelry, expensive clothing and other valuables connecting plunger displacement pump and cylindrical slider bottom tip
Pipe forms, and hose end is equipped with injection needle.
Circular motion synthesis experiment platform the most according to claim 1, is characterized in that: described
Arrangements for speed regulation be inductance arrangements for speed regulation, electrically-actuated throttle device or RHVC.
Circular motion synthesis experiment platform the most according to claim 1, is characterized in that: described
Upper horizontal slide rail equipped with mass fixed on the rightabout of cylindrical slider.
Circular motion synthesis experiment platform the most according to claim 1, is characterized in that: described
Cylindrical slider by slide block core and cover on the slide block set of slide block core appearance and form, slide block set can be single
Solely take off.
6. the using method of the circular motion synthesis experiment platform that one of claim 1-5 is described, its
Feature is: A. places unlike material and the test block of quality in the bottom of circular non-opaque tank, starts
Motor makes circular non-opaque tank rotate, it is possible to observe the difference of centrifugal force under different rotating speeds,
B. mention L-type metal bracket and at circular non-opaque inboard wall of cistern, place bullet at bracket
Property the test block made of material, then start motor and make circular non-opaque tank rotate to fall L-type metal
Bracket, it is possible to observe that elastomeric material is made when rotating speed reaches certain speed test block is due to side
Face elastic force, the effect of frictional force are attached to circular non-opaque inboard wall of cistern and do not fall out,
C. in the groove of main shaft, take out swing ball, start motor and make main shaft rotation be able to observe that
Rotating speed is different, and the drift angle tying up to the circular cone track that the cotton rope on swing ball is formed is different,
D. by control variate method, checking centripetal force, quality, rotating speed, the relation reality of radius
When testing, direct cycle dish viewed from above, readout interval, regulate motor by speed-regulating switch
Rotating speed, can read the different cycles of 0.4s, 0.5s, 0.6s, 0.8s, 1.0s, 1.2s on cycle dish
Value, sucks water in plunger displacement pump, and when regulating the rotating speed of motor, the cycle stability on cycle dish is at certain
During one numerical value, quickly touching the piston of plunger displacement pump, water passes through transparent small hose, from being fixed on cylinder
Shape slide block bottom is arranged on the injection needle ejection of hose end, is sprinkled upon the spring of box style substructure table top
On scale panel and rule, by reading spring scale panel, the numerical value of rule, circle can be read
Spring tension suffered by cylindrical slide, and moving radius, and the slide block core quality of cylindrical slider
0.1Kg, slide block set quality 0.05Kg, dismounting slide block can change the matter of object of study very easily
Amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410242351.3A CN103971566B (en) | 2014-06-03 | 2014-06-03 | Circular motion synthesis experiment platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410242351.3A CN103971566B (en) | 2014-06-03 | 2014-06-03 | Circular motion synthesis experiment platform |
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| Publication Number | Publication Date |
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| CN103971566A CN103971566A (en) | 2014-08-06 |
| CN103971566B true CN103971566B (en) | 2016-08-17 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104575187B (en) * | 2015-01-30 | 2017-02-22 | 青岛农业大学 | Kinetics study apparatus of vertical plane |
| CN106128237B (en) * | 2016-08-18 | 2021-11-09 | 浙江大学城市学院 | Sliding groove type three-dimensional adjustment quantitative verification cone rolling condition experimental instrument |
| CN107025828B (en) * | 2017-04-28 | 2022-10-18 | 浙江大学城市学院 | Centripetal force demonstration and quantitative verification experimental instrument |
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|---|---|---|---|---|
| CN2056536U (en) * | 1989-08-08 | 1990-04-25 | 唐定山 | Demonstrator for centripetal force |
| GR1004994B (en) * | 2005-01-07 | 2005-09-16 | Δημητριος Τσαουσης | Device for the study of the angular momentum and the calculation of the centripetal force work |
| CN201498119U (en) * | 2009-08-31 | 2010-06-02 | 王建东 | Horizontal centrifuge |
| CN202549114U (en) * | 2012-03-27 | 2012-11-21 | 西华师范大学 | Electric centripetal force quantitative analysis demonstration instrument |
| CN203055252U (en) * | 2012-12-28 | 2013-07-10 | 刘召新 | A centripetal force demonstrator |
| CN203480737U (en) * | 2013-10-23 | 2014-03-12 | 陈骥 | Demonstration instrument for centripetal force exploration |
| CN203895007U (en) * | 2014-06-03 | 2014-10-22 | 济南市长清中学 | Circular motion comprehensive experimental platform |
-
2014
- 2014-06-03 CN CN201410242351.3A patent/CN103971566B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2056536U (en) * | 1989-08-08 | 1990-04-25 | 唐定山 | Demonstrator for centripetal force |
| GR1004994B (en) * | 2005-01-07 | 2005-09-16 | Δημητριος Τσαουσης | Device for the study of the angular momentum and the calculation of the centripetal force work |
| CN201498119U (en) * | 2009-08-31 | 2010-06-02 | 王建东 | Horizontal centrifuge |
| CN202549114U (en) * | 2012-03-27 | 2012-11-21 | 西华师范大学 | Electric centripetal force quantitative analysis demonstration instrument |
| CN203055252U (en) * | 2012-12-28 | 2013-07-10 | 刘召新 | A centripetal force demonstrator |
| CN203480737U (en) * | 2013-10-23 | 2014-03-12 | 陈骥 | Demonstration instrument for centripetal force exploration |
| CN203895007U (en) * | 2014-06-03 | 2014-10-22 | 济南市长清中学 | Circular motion comprehensive experimental platform |
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