CN108053728A - Hypocycloid track apparatus for demonstrating - Google Patents
Hypocycloid track apparatus for demonstrating Download PDFInfo
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- CN108053728A CN108053728A CN201711236759.XA CN201711236759A CN108053728A CN 108053728 A CN108053728 A CN 108053728A CN 201711236759 A CN201711236759 A CN 201711236759A CN 108053728 A CN108053728 A CN 108053728A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/02—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for mathematics
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Abstract
The present invention relates to a kind of hypocycloid track apparatus for demonstrating.The apparatus for demonstrating includes being installed in respectively determines Knucle-gear and secondary rotation axis on stent, and the countershaft bearing being fixedly connected with stent is rotationally arranged on the axle body of secondary rotation axis；The stretching of secondary rotation axis is rotationally equipped with rotatable parts in the end point on countershaft bearing top, the dynamic Knucle-gear that internal messing is formed with determining Knucle-gear is provided on the rotatable parts, the rotatable parts are rotatably assorted with the dynamic Knucle-gear composition, paintbrush is installed on the dynamic Knucle-gear, which, which further includes, is located on the upside of the paintbrush to show the translucent cover of paintbrush track；The apparatus for demonstrating further includes to drive the driving device that the secondary rotation axis rotates, and the driving device is by driving the secondary rotation axis to rotate to drive dynamic Knucle-gear around determining Knucle-gear revolution and rotation.The present invention can allow visitor or learner more intuitively to experience formation and the track of hypocycloid, and long-term science popularization and teaching is suitble to use.
Description
Technical field
The present invention relates to a kind of hypocycloid track apparatus for demonstrating, are mainly used for Popular Science Education and teaching practice activity.
Background technology
Cycloid is one of charming curves numerous in mathematics, and hypocycloid refers to that a dynamic circle is inscribed within a fixed circle and makees nothing
The track of round Zhou Shangyi fixed point is moved in the rolling of slip.It is suitable with cycloid, but it is not to do pure rolling on line
Circle, but do the circle of pure rolling in great circle inner surface.
Object of which movement equation in physics is exactly mathematically parametric equation.Parametric equation is for solving practical problems
It is of great significance.Cycloid is a kind of highly important curve, can be divided into flat pendulum line, circle cycloid, involute three categories.We
Common most of curve can regard the special case of cycloid, such as astroid, cardiod, Archimedes spiral, curve as
Deng.Cycloid is also very useful a class ourve, if brachistochrone is exactly flat pendulum line；Common gear is typically involute in factory
Or circle cycloid；The Dual-folding door of bus make use of the principle of astroid.For another example as many agricultural machinery such as harvester, rooter
With the lathe in factory etc., mostly using cycloid principle.Moreover, cycloid also has important application, the phase of planets pair in astronomy
The track of the earth, the moon can be regarded as cycloid with respect to the track of the sun.
In teaching process, usual teacher will illustrate cycloid in parametric equation, and by drawing cycloid on blackboard, to the greatest extent
Formation and the track of cycloid are described to power, since the track of cycloid is very more, shape difference is larger, can not be by simply drawing
It is described, causes the difficulty of object teaching.
The content of the invention
Shortcoming in for the above-mentioned prior art, the technical problem to be solved in the present invention is to provide a kind of hypocycloid rails
Mark apparatus for demonstrating can allow visitor or learner more intuitively to experience formation and the track of hypocycloid, and be suitble to long-term
Science popularization and teaching use.
To achieve these goals, the invention is realized by the following technical scheme：
A kind of epicycloid track apparatus for demonstrating, the apparatus for demonstrating include stent and are installed in respectively on stent to determine knuckle-tooth
Wheel and secondary rotation axis, are arranged with to be fixedly connected with stent and form with the secondary rotation axis on the axle body of the pair rotation axis and rotate
The countershaft bearing of cooperation；The stretching of the pair rotation axis is rotationally equipped with rotatable parts in the end point on countershaft bearing top,
It is provided on the rotatable parts and the dynamic Knucle-gear determined Knucle-gear and form internal messing, the rotatable parts and the dynamic circle
Gear composition is rotatably assorted, and the paintbrush with dynamic Knucle-gear eccentric setting is installed on the dynamic Knucle-gear, which also wraps
It includes and is located on the upside of the paintbrush to show the translucent cover of paintbrush track；The apparatus for demonstrating further includes to drive the secondary rotation
The driving device that shaft rotates, the driving device is by driving the secondary rotation axis to rotate to drive dynamic Knucle-gear around determining knuckle-tooth
Wheel revolution and rotation.
Preferably, the radius for determining Knucle-gear and the ratio between the radius of dynamic Knucle-gear are adjustable.
Preferably, the rotatable parts are disk, and the dynamic Knucle-gear includes dynamic knuckle-tooth wheel shaft, and the dynamic knuckle-tooth wheel shaft is inserted
If the dynamic knuckle-tooth wheel bearing seat being fixed on disk within the bearing, is provided on the outside of the bearing.
Preferably, which further includes the deck plate being arranged on stent, described to determine Knucle-gear and be installed in described
On panel；The pair rotation axis is connected through the deck plate with the rotatable parts；The deck plate and the translucent cover
Form the space of a closing.
Preferably, the paintbrush can be white board marker or light pen；The translucent cover is made of acrylic or glass；
When paintbrush uses white board marker, white board marker nib at the top of the translucent cover with contacting；When paintbrush uses light pen,
Light pen nib and the gap for having 1-2mm at the top of the translucent cover.
It is further preferred that when paintbrush use light pen when, the translucent cover top coating long after glow luminous material or
The translucent cover is made of dimming glass.
Preferably, the driving device includes the handwheel grasped convenient for human hand, and the handwheel is arranged on the top of deck plate,
And handwheel is arranged and is fixed in live spindle, the live spindle is connected through deck plate and secondary rotation axis by transmission mechanism
It connects.
As the first preferred embodiment of transmission mechanism, the transmission mechanism is belt gear, by main pulley, skin
Band and secondary belt pulley are formed；The main pulley is fixedly mounted in live spindle, and the pair belt pulley is fixedly mounted on pair
In rotation axis, the main pulley passes through belt drive pair pulley rotation.
As second of preferred embodiment of transmission mechanism, the transmission mechanism is gear drive, by master gear, transition
Gear and pinion are formed；The master gear is fixedly mounted in live spindle, and the pinion is fixedly mounted on secondary rotation
On axis, the master gear drives pinion to rotate by transition gear.
As the third preferred embodiment of transmission mechanism, the transmission mechanism by generator, conducting wire and motor drive mechanism into；
The generator is fixedly connected with live spindle bottom, and the motor is fixedly connected with secondary rotation axis, the generator via
Fax is transported to motor and motor is driven to rotate by conducting wire.
The beneficial effects of the present invention are：
1), the present invention using by internal messing each other determine Knucle-gear (internal gear) and dynamic Knucle-gear (external gear) formed
A pair of of gear simulates a dynamic circle and is determining to make in circle the situation of fricton-tight rolling along a fixed circle, and passes through and be arranged on
Paintbrush on dynamic Knucle-gear describes the track of a fixed point on dynamic circumference.
As a result of translucent cover, therefore spectators can be clearly observed the forming process of hypocycloid, and by dynamic
Paintbrush and translucent cover cooperation on Knucle-gear have recorded forming process and the track of hypocycloid, so as to which visitor be greatly facilitated
Or learner is to the formation of hypocycloid and the cognition of track.
2), in operation, visitor or learner by shake handwheel add it is mutual in the device presentation process
Dynamic property and interest can realize speed and the cycle of artificial control rotating speed, substantially increase science popularization and quality of instruction, make ginseng
Onlooker or learner can realize that self " draws " hypocycloid, and experience the forming process of hypocycloid.
3) by perforate at the radially different size on disk, the different dynamic knuckle-tooth of diameter can be placed as needed
Wheel, the dynamic Knucle-gear (can determine Knucle-gear and dynamic Knucle-gear radius scale or diameter proportion at this time according to the size of diameter
It is of different sizes) draw different hypocycloid tracks.
4), the paintbrush in this apparatus for demonstrating is there are many selection, for example white board marker may be employed and directly drawn at the top of translucent cover
Go out hypocycloid, certain paintbrush can also use light pen.
When the paintbrush in this apparatus for demonstrating is using light pen, while during translucent cover top coating long after glow luminous material, by
In long after glow luminous material, it is substantially a kind of embedded photoluminescent material, the light-storing and emitting material that is otherwise known as, Noctilucent material, because
This, translucent cover can not only show forming process and the track of hypocycloid at this time, and can pass through long after glow luminous material
Selection, the track of hypocycloid is disappeared (recovery) in reasonable time, so as to fulfill what is shown repeatedly in reasonable time
Technique effect.
When paintbrush at the top of light pen and translucent cover of dimming glass (be powered glass) material using being made, visitor
Or learner is first it is seen that the track of light pen luminous point, when dimming glass energization becomes transparent, can just see internal machine
Structure, can excite visitor or what the internal cycloid of learner was formed probes into desire.
5), the present invention is equipped with the translucent cover that the organic glass of flexible connection or glass material make, according to the usage requirement
Translucent cover is opened or closed, in presentation process, translucent cover forms the enclosure space of an interior visible with deck plate, reduces
Extraneous interference, for science popularization and the successes achieved in teaching provides guarantee, while dustproof effect when also having played long-term placement.
6), the present invention is driven by manpower, and LED light source and rechargeable battery can be used in light pen, can be according to actual needs each
Kind condition and different places are demonstrated, and meet the society need of current energy-saving and emission-reduction, and simple in structure, easy to operate, easily
In maintenance, operation and maintenance expense is reduced, is suitable for long-term science popularization and teaching uses.
Description of the drawings
Fig. 1 is hand-rail type belt transmission structure schematic diagram of the present invention；
Fig. 2 is shaking gear drive mechanism schematic diagram of the present invention；
Fig. 3 drives structure schematic diagram for hand-operated electric generator of the present invention；
Fig. 4 is the partial enlarged view in Fig. 1,2,3；
Fig. 5 is the top view of disk of the present invention.
The meaning of label symbol is as follows in figure：
1- handwheel 2- live spindle 3- main bearing seats
4a- main pulley 4b- master gear 4c- generators
5a- belt 5b- transition gear 5c- conducting wires
6a- pair belt pulley 6b- pinion 6c- motor
7- pair rotation axis 8- countershaft bearing 9- stents
10- deck plates 11- determines Knucle-gear 12- translucent covers
13- disk 14- paintbrush 15- paintbrush seats
16- moves knuckle-tooth wheel shaft 17- bearings 18- and moves knuckle-tooth wheel bearing seat
19- moves Knucle-gear
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
It is described in detail on step ground.Obviously, described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.
Embodiment 1
As shown in Figure 1, the present embodiment is a kind of hand-rail type hypocycloid track apparatus for demonstrating of belt transmission.
The device includes the deck plate 10 being arranged on stent 9, and disk 13 is equipped in the upside of deck plate 10 and determines knuckle-tooth
Wheel 11, the disk 13 is supported and fixed in secondary rotation axis 7, and the pair rotation axis 7, which rotatably supports, is fixed on countershaft bearing 8
On, the countershaft bearing 8 is fixed on the stent 9, and the countershaft bearing 8 is arranged on 10 downside of deck plate；It is described
Determine Knucle-gear 11 to be fixed on deck plate 10.13 top of disk is equipped with dynamic Knucle-gear 19, and the dynamic Knucle-gear 19 passes through dynamic
Knuckle-tooth wheel shaft 16, bearing 17 and dynamic knuckle-tooth wheel bearing seat 18 are rotatably fixed and are arranged on disk 13.The dynamic Knucle-gear 19
Excircle at be installed with paintbrush 14.
As shown in Figure 1, the apparatus for demonstrating further includes the driving device that the secondary rotation axis 7 is driven to rotate, the drive
Dynamic device includes the handwheel 1 grasped convenient for human hand, and the handwheel 1 is arranged on the top of deck plate 12, and handwheel 1 is arranged and is fixed on
In live spindle 2, the live spindle 2 is through deck plate 12 and main pulley 4a, main pulley 4a have been fixedly connected in lower end
It is connected by belt 5a with pair belt pulley 6a, secondary belt pulley 6a is sleeved in secondary rotation axis 7.
As shown in Figure 1, the apparatus for demonstrating is covered with translucent cover 12, the 12 activity installation of translucent cover in the upside of disk 13
On deck plate 10, and translucent cover 12 forms the space of a closing with the deck plate 10.
When 2 drive pair rotation axis 7 of live spindle rotates, the pair rotation axis 7 drives disk 13 to rotate, dynamic so as to drive
Knucle-gear 19 revolves round the sun around determining Knucle-gear 11, and at the same time, rotation also occurs for the dynamic Knucle-gear 19 being supported on bearing 17, at this time
Pass through the paintbrush 14 and the translucent cover 12 of upside being arranged on dynamic Knucle-gear 19, you can show the forming process and rail of hypocycloid
Mark.
It elaborates below in conjunction with the accompanying drawings to the course of work of the apparatus for demonstrating.
First, rotation hand wheel 1, driving live spindle 2 are revolved in clockwise and counterclockwise directions by visitor or learner
Turn, live spindle 2 then drives main pulley 4a and belt 5a to rotate, and then pair belt pulley 6a is also rotated therewith, secondary
Then drive pair rotation axis 7 rotates belt pulley 6a, and disk 13 is driven to rotate, and Knucle-gear 19 is moved under the drive of disk 13 around fixed
The rotation revolution of Knucle-gear 11, meanwhile, in the case where moving Knucle-gear 19 and determining the internal messing effect of Knucle-gear 11, move the rotation of Knucle-gear 19 certainly
Turn, paintbrush 14 is driven to move, visitor or learner can see the forming process of hypocycloid and paintbrush 14 by translucent cover 12
In the hypocycloid track that 12 top of translucent cover is drawn.
When paintbrush 14 is white board marker, paintbrush 14 can draw hypocycloid track on 12 top planes transparent panel of translucent cover
Curve.The track drawn can be wiped with blank sassafras and Reusability.
When paintbrush 14 is light pen, paintbrush 14 can be coated with the translucent cover 12 of long after glow luminous material in top planes
Upper " picture " goes out hypocycloid geometric locus." picture " goes out feature of the hypocycloid geometric locus due to afterglow materials, can be certain
Time in " disappearance ", can be with Reusability after recovery.
When paintbrush 14 at the top of light pen and translucent cover using dimming glass (energization glass) material is used, visitor or
Habit person is first it is seen that the luminous point of light pen is in the track of dimming glass (energization glass), when dimming glass (energization glass) is logical
When electricity becomes transparent, internal mechanism can be just seen.
When on disk 13 replace installation different-diameter dynamic Knucle-gear 19 when, different hypocycloid tracks can be drawn.
Embodiment 2
As shown in Fig. 2, the present embodiment is a kind of gear-driven hand-rail type hypocycloid track apparatus for demonstrating.
The device includes the deck plate 10 being arranged on stent 9, and disk 13 is equipped in the upside of deck plate 10 and determines knuckle-tooth
Wheel 11, the disk 13 is supported and fixed in secondary rotation axis 7, and the pair rotation axis 7, which rotatably supports, is fixed on countershaft bearing 8
On, the countershaft bearing 8 is fixed on the stent 9, and the countershaft bearing 8 is arranged on 10 downside of deck plate；It is described
Determine Knucle-gear 11 to be fixed on deck plate 10.13 top of disk is equipped with dynamic Knucle-gear 19, and the dynamic Knucle-gear 19 passes through dynamic
Knuckle-tooth wheel shaft 16, bearing 17 and dynamic knuckle-tooth wheel bearing seat 18 are rotatably fixed and are arranged on disk 13.The dynamic Knucle-gear 19
Excircle at be installed with paintbrush 14.
As shown in Fig. 2, the apparatus for demonstrating further includes the driving device that the secondary rotation axis 7 is driven to rotate, the drive
Dynamic device includes the handwheel 1 grasped convenient for human hand, and the handwheel 1 is arranged on the top of deck plate 10, and handwheel 1 is arranged and is fixed on
In live spindle 2, the live spindle 2 is through deck plate 10 and master gear 4b has been fixedly connected in lower end, and master gear 4b passes through
Transition gear 5b is engaged with pinion 6b, and pinion 6b is sleeved in secondary rotation axis 7.
As shown in Fig. 2, the apparatus for demonstrating is covered with translucent cover 12, the 12 activity installation of translucent cover in the upside of disk 13
On deck plate 10, and translucent cover 12 forms the space of a closing with the deck plate 10.
It elaborates below in conjunction with the accompanying drawings to the course of work of the apparatus for demonstrating.
First, rotation hand wheel 1, driving live spindle 2 are revolved in clockwise and counterclockwise directions by visitor or learner
Turn, live spindle 2 then drives master gear 4b and transition gear 5b to rotate, and then pinion 6b is also rotated therewith, secondary
Then drive pair rotation axis 7 rotates gear 6b, and disk 13 is driven to rotate, and Knucle-gear 19 is moved under the drive of disk 13 around fixed circle
The rotation revolution of gear 11, meanwhile, in the case where moving Knucle-gear 19 and determining the internal messing effect of Knucle-gear 11, move the rotation of Knucle-gear 19 certainly
Turn, paintbrush 14 is driven to move, visitor or learner can see the forming process of hypocycloid and paintbrush 14 by translucent cover 12
In the hypocycloid track that 12 top of translucent cover is drawn.
When paintbrush 14 is white board marker, paintbrush 14 can draw hypocycloid track on 12 top planes transparent panel of translucent cover
Curve.The track drawn can be wiped with blank sassafras and Reusability.
When paintbrush 14 is light pen, paintbrush 14 can be coated with the translucent cover 12 of long after glow luminous material in top planes
Upper " picture " goes out hypocycloid geometric locus." picture " goes out feature of the hypocycloid geometric locus due to afterglow materials, can be certain
Time in " disappearance ", can be with Reusability after recovery.
When paintbrush 14 at the top of light pen and translucent cover using dimming glass (energization glass) material is used, visitor or
Habit person is first it is seen that the luminous point of light pen is in the track of dimming glass (energization glass), when dimming glass (energization glass) is logical
When electricity becomes transparent, internal mechanism can be just seen.
When on disk 13 replace installation different-diameter dynamic Knucle-gear 19 when, different hypocycloid tracks can be drawn.
Embodiment 3
As shown in figure 3, the present embodiment is a kind of hand-rail type hypocycloid track apparatus for demonstrating of generator drive.
The device includes the deck plate 10 being arranged on stent 9, and disk 13 is equipped in the upside of deck plate 10 and determines knuckle-tooth
Wheel 11, the disk 13 is supported and fixed in secondary rotation axis 7, and the pair rotation axis 7, which rotatably supports, is fixed on countershaft bearing 8
On, the countershaft bearing 8 is fixed on the stent 9, and the countershaft bearing 8 is arranged on 10 downside of deck plate；It is described
Determine Knucle-gear 11 to be fixed on deck plate 10.13 top of disk is equipped with dynamic Knucle-gear 19, and the dynamic Knucle-gear 19 passes through dynamic
Knuckle-tooth wheel shaft 16, bearing 17 and dynamic knuckle-tooth wheel bearing seat 18 are rotatably fixed and are arranged on disk 13.The dynamic Knucle-gear 19
Excircle at be installed with paintbrush 14.
As shown in figure 3, the apparatus for demonstrating further includes the driving device that the secondary rotation axis 7 is driven to rotate, the drive
Dynamic device includes the handwheel 1 grasped convenient for human hand, and the handwheel 1 is arranged on the top of deck plate 10, and handwheel 1 is arranged and is fixed on
In live spindle 2, the live spindle 2 is through deck plate 10 and generator 4c has been fixedly connected in lower end, motor 6c and pair
Rotation axis 7 is fixedly connected, and fax is transported to motor 6c via conducting wire 5c and motor 6c is driven to rotate by generator 4c.
As shown in figure 3, the apparatus for demonstrating is covered with translucent cover 12, the 12 activity installation of translucent cover in the upside of disk 13
On deck plate 10, and translucent cover 12 forms the space of a closing with the deck plate 10.
It elaborates below in conjunction with the accompanying drawings to the course of work of the apparatus for demonstrating.
First, rotation hand wheel 1, driving live spindle 2 are revolved in clockwise and counterclockwise directions by visitor or learner
Turn, live spindle 2 drives generator 4c power generations, and electric power is transferred to motor 6c, motor 6c then rotation drivings by conducting wire 5c
Secondary rotation axis 7 rotates, and disk 13 is driven to rotate, and Knucle-gear 19 is moved under the drive of disk 13 and rotates public affairs around determining Knucle-gear 11
Turn, meanwhile, in the case where dynamic Knucle-gear 19 is acted on the internal messing for determining Knucle-gear 11, move Knucle-gear 19 and rotate rotation, drive paintbrush 14
Movement, visitor or learner can be seen by translucent cover 12 hypocycloid forming process and paintbrush 14 at 12 top of translucent cover
The hypocycloid track drawn.
When paintbrush 14 is white board marker, paintbrush 14 can draw hypocycloid track on 12 top planes transparent panel of translucent cover
Curve.The track drawn can be wiped with blank sassafras and Reusability.
When paintbrush 14 is light pen, paintbrush 14 can be coated with the translucent cover 12 of long after glow luminous material in top planes
Upper " picture " goes out hypocycloid geometric locus." picture " goes out feature of the hypocycloid geometric locus due to afterglow materials, can be certain
Time in " disappearance ", can be with Reusability after recovery.
When paintbrush 14 at the top of light pen and translucent cover using dimming glass (energization glass) material is used, visitor or
Habit person is first it is seen that the luminous point of light pen is in the track of dimming glass (energization glass), when dimming glass (energization glass) is logical
When electricity becomes transparent, internal mechanism can be just seen.
When on disk 13 replace installation different-diameter dynamic Knucle-gear 19 when, different hypocycloid tracks can be drawn.
It should be pointed out that the supporting mechanism of deck plate 10 is not limited in the present invention to use stent 9.Also other tools can be taken
There is the device of support function, for example, being designed to supporting table panel and storing the upper box of the following component of deck plate, table top
Plate is fastened on upper box upper end, and the lower end of upper box is connected with lower box, and partition plate, nowel are equipped between upper box and lower box
The base position of body is equipped with bottom plate of the closure in lower box bottom, and one side of bottom plate and pedestal form hinged cooperation, bottom plate it is another
While being provided with the latch structure being linked together with pedestal, bottom plate can be opened or closed；During opening, can facilitate installation or
Safeguard internals, after, can bottom plate be closed by bolt.
Equally, other structures, such as chain drive also can be used in transmission device.Such conversion all falls within the present invention's
Within protection domain.
Claims (10)
1. a kind of hypocycloid track apparatus for demonstrating, which is characterized in that the apparatus for demonstrating includes stent (9) and is installed in branch respectively
Determine Knucle-gear (11) and secondary rotation axis (7) on frame (9), be arranged on the axle body of the pair rotation axis (7) fixed with stent (9)
Couple and form the countershaft bearing (8) being rotatably assorted with the secondary rotation axis (7)；The stretching of the pair rotation axis (7) is in countershaft
The end point on bearing (8) top is rotationally equipped with rotatable parts, is provided on the rotatable parts and determines Knucle-gear with described
(11) the dynamic Knucle-gear (19) of internal messing is formed, the rotatable parts are formed with the dynamic Knucle-gear (19) and are rotatably assorted, described
The paintbrush (14) with dynamic Knucle-gear (19) eccentric setting is installed on dynamic Knucle-gear (19), which, which further includes, is located at institute
It states and the translucent cover (12) for showing paintbrush track is used on the upside of paintbrush (14)；The apparatus for demonstrating further includes to drive the secondary rotation
The driving device that axis (7) rotates, the driving device is by driving the secondary rotation axis (7) to rotate to drive dynamic Knucle-gear (19)
Around determine Knucle-gear (11) revolution and rotation.
2. a kind of hypocycloid track apparatus for demonstrating according to claim 1, it is characterised in that：It is described to determine Knucle-gear (11)
Radius and the ratio between the radius of dynamic Knucle-gear (19) are adjustable.
3. a kind of hypocycloid track apparatus for demonstrating according to claim 1, it is characterised in that：The rotatable parts are disk
(13), the dynamic Knucle-gear (19) includes dynamic knuckle-tooth wheel shaft (16), and the dynamic knuckle-tooth wheel shaft (16) is plugged in bearing (17), institute
State the dynamic knuckle-tooth wheel bearing seat (18) for being provided with and being fixed on disk (13) on the outside of bearing (17).
4. a kind of epicycloid track apparatus for demonstrating according to claim 1, it is characterised in that：The apparatus for demonstrating, which further includes, to be set
Put the deck plate (10) on stent (9), it is described to determine Knucle-gear (11) and be installed on the deck plate (10)；The pair rotation axis
(7) it is connected through the deck plate (10) with the rotatable parts；The deck plate (10) is formed with the translucent cover (12)
The space of one closing.
5. a kind of hypocycloid track apparatus for demonstrating according to claim 1, it is characterised in that：The paintbrush (14) can be with
It is white board marker or light pen；The translucent cover (12) is made of acrylic or glass；
When paintbrush (14) uses white board marker, white board marker nib at the top of the translucent cover (12) with contacting；When paintbrush (14) uses
During light pen, light pen nib and the gap for having 1-2mm at the top of the translucent cover (12).
6. a kind of hypocycloid track apparatus for demonstrating according to claim 5, it is characterised in that：When paintbrush (14) is using luminous
During pen, translucent cover (12) the top coating long after glow luminous material or the translucent cover (12) are made of dimming glass.
7. according to a kind of hypocycloid track apparatus for demonstrating of claim 1~6 any one of them, it is characterised in that：The driving
Device includes the handwheel (1) grasped convenient for human hand, and the handwheel (1) is arranged on the top of deck plate (10), and handwheel (1) is arranged
It is fixed in live spindle (2), the live spindle (2) passes through transmission mechanism phase through deck plate (10) and secondary rotation axis (7)
Connection.
8. a kind of hypocycloid track apparatus for demonstrating according to claim 7, it is characterised in that：The transmission mechanism is belt
Transmission mechanism is made of main pulley (4a), belt (5a) and secondary belt pulley (6a)；The main pulley (4a) is fixedly mounted
In live spindle (2), the pair belt pulley (6a) is fixedly mounted in secondary rotation axis (7), and the main pulley (4a) passes through
Belt (5a) drive pair belt pulley (6a) rotates.
9. a kind of hypocycloid track apparatus for demonstrating according to claim 7, it is characterised in that：The transmission mechanism is gear
Transmission mechanism is made of master gear (4b), transition gear (5b) and pinion (6b)；The master gear (4b) is fixedly mounted on
In live spindle (2), the pinion (6b) is fixedly mounted in secondary rotation axis (7), and the master gear (4b) passes through transition tooth
(5b) driving pinion (6b) is taken turns to rotate.
10. a kind of hypocycloid track apparatus for demonstrating according to claim 7, it is characterised in that：The transmission mechanism is by sending out
Motor (4c), conducting wire (5c) and motor (6c) are formed；The generator (4c) is fixedly connected with live spindle (2) bottom,
The motor (6c) is fixedly connected with secondary rotation axis (7), and the generator (4c) transports to fax via conducting wire (5c) electronic
Machine (6c) simultaneously drives motor (6c) to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711236759.XA CN108053728A (en) | 2017-11-30 | 2017-11-30 | Hypocycloid track apparatus for demonstrating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711236759.XA CN108053728A (en) | 2017-11-30 | 2017-11-30 | Hypocycloid track apparatus for demonstrating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108053728A true CN108053728A (en) | 2018-05-18 |
Family
ID=62121757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711236759.XA Pending CN108053728A (en) | 2017-11-30 | 2017-11-30 | Hypocycloid track apparatus for demonstrating |
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| CN109658784A (en) * | 2019-02-20 | 2019-04-19 | 哈尔滨学院 | A kind of College Maths cycloid teaching aid |
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| CN203267557U (en) * | 2012-11-22 | 2013-11-06 | 广东工业大学 | Luminous board and luminous pen for writing on luminous board |
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| CN105448182A (en) * | 2015-12-10 | 2016-03-30 | 陈菊芳 | Earth and moon demonstration instrument |
| CN205943211U (en) * | 2016-04-12 | 2017-02-08 | 黑龙江工程学院 | Higher mathematics epicycloid teaching aid |
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| CN201936276U (en) * | 2010-12-06 | 2011-08-17 | 太瀚科技股份有限公司 | Electronic white board capable of instantly processing handwriting number |
| CN203267557U (en) * | 2012-11-22 | 2013-11-06 | 广东工业大学 | Luminous board and luminous pen for writing on luminous board |
| CN203746298U (en) * | 2014-03-05 | 2014-07-30 | 李辉 | Hypocycloid demonstration teaching aid of using planetary gear train |
| CN105448182A (en) * | 2015-12-10 | 2016-03-30 | 陈菊芳 | Earth and moon demonstration instrument |
| CN205943211U (en) * | 2016-04-12 | 2017-02-08 | 黑龙江工程学院 | Higher mathematics epicycloid teaching aid |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109658784A (en) * | 2019-02-20 | 2019-04-19 | 哈尔滨学院 | A kind of College Maths cycloid teaching aid |
| CN109658784B (en) * | 2019-02-20 | 2020-09-15 | 哈尔滨学院 | University's mathematics cycloid teaching aid |
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