CN104008695B - A kind of demonstration mechanically operated classroom teaching aid - Google Patents
A kind of demonstration mechanically operated classroom teaching aid Download PDFInfo
- Publication number
- CN104008695B CN104008695B CN201410163631.5A CN201410163631A CN104008695B CN 104008695 B CN104008695 B CN 104008695B CN 201410163631 A CN201410163631 A CN 201410163631A CN 104008695 B CN104008695 B CN 104008695B
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- gear
- page device
- external gear
- bar
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 153
- 230000033001 locomotion Effects 0.000 claims abstract description 50
- 230000005540 biological transmission Effects 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 7
- 238000010586 diagram Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 11
- 229920003023 plastic Polymers 0.000 description 8
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000005489 elastic deformation Effects 0.000 description 3
- 229920006351 engineering plastic Polymers 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- JJWKPURADFRFRB-UHFFFAOYSA-N carbonyl sulfide Chemical compound O=C=S JJWKPURADFRFRB-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Toys (AREA)
Abstract
The invention discloses a kind of demonstration mechanically operated classroom teaching aid, belong to machinery teaching aid field, classroom.Described demonstration mechanically operated classroom teaching aid, described teaching aid includes: loose-leaf latch closure and be arranged on multiple page devices that described ring attachment is buckled, described page device includes transparent housing and is arranged on the mechanical moving structure in described housing, and the mechanical moving structure of each described page device includes one or more in actuating unit, double-crank mechanism, double rocker mechanism, crank and rocker mechanism, cam mechanism, gear mechanism.The demonstration mechanically operated classroom teaching aid that the present invention provides can be operated by mechanical mechanism, demonstration can be moved continuously, simultaneously, this classroom teaching aid structure is the most ingenious, easy and simple to handle, the mechanical movement principle in teaching can be shown concisely, improve the quality of teaching, during this teaching aid is fixed on transparent box simultaneously, it is easy to observe intuitively the operation process of each mechanism, it is simple to student's divergent thinking and raising creativity consciousness.
Description
Technical field
The present invention relates to machinery teaching aid field, classroom, demonstrate mechanically operated classroom teaching aid particularly to one.
Background technology
Machinery classroom teaching aid is the forms of motion of machinery to be demonstrated to student intuitively see, helps student to understand machine
The forms of motion of tool.
Existing machinery classroom teaching aid structure is simple, is mostly simply to be combined by several parts, and demonstrated
Cheng Duowei teacher manually completes.
During realizing the present invention, inventor finds that prior art at least there is problems in that
Manually completing owing to presentation process mostly is, there is machinery classroom teaching aid sometimes can not continuously and steady
Its motion of ground demonstration, is unfavorable for that student understands the forms of motion that this machinery classroom teaching aid is reflected, additionally, existing
The mechanical classroom teaching aid structure having is simple, the thinking of limitation student and creativity consciousness.
Summary of the invention
In order to solve in prior art that machinery classroom teaching aid structure is simple and presentation process mostly is asking of manually completing
Topic, embodiments provides a kind of demonstration mechanically operated classroom teaching aid.Described technical scheme is as follows:
A kind of demonstration of the embodiment of the present invention mechanically operated classroom teaching aid, described teaching aid includes: loose-leaf latch closure
And be arranged on multiple page devices that described ring attachment is buckled, described page device include transparent housing with
And it being arranged on the mechanical moving structure in described housing, the mechanical moving structure of each described page device includes
In actuating unit, double-crank mechanism, double rocker mechanism, crank and rocker mechanism, cam mechanism, gear mechanism
One or more, described page device includes described first page device, the machine of described first page device
Tool motion structure include the first actuating unit, travelling gear, first connecting rod, second connecting rod, third connecting rod,
Fourth link, the 5th connecting rod, six-bar linkage, seven-link assembly and the 8th connecting rod, the gear of described travelling gear
Axle is installed in rotation on the housing of described first page device, described first actuating unit and described transmission
Gear engages, and one end of described first connecting rod is fixed on described gear shaft, the other end of described first connecting rod
Hinged with the centre of described third connecting rod；
One end of described second connecting rod and one end of described fourth link are fixed on the shell of described first page device
On body, the other end of described second connecting rod is hinged on one end of described third connecting rod, described fourth link another
One end of one end, the other end of described third connecting rod and described 5th connecting rod is hinged；Described first connecting rod, institute
State second connecting rod and described fourth link is parallel and be positioned at the same side of described third connecting rod, described first
Connecting rod, described second connecting rod and described third connecting rod one described double-crank mechanism of composition, described first
Connecting rod, described third connecting rod and described fourth link form another described double-crank mechanism；
The centre of described six-bar linkage is fixed on the housing of described first page device, described 5th connecting rod
The other end is hinged with one end of described six-bar linkage, the other end of described six-bar linkage and described seven-link assembly
One end is hinged；Described fourth link and described six-bar linkage are positioned at the same side of described 5th connecting rod, and described
Double leval jib, described 5th connecting rod and described six-bar linkage one described crank and rocker mechanism of composition；
One end of described 8th connecting rod is fixed on the housing of described first page device, described seven-link assembly
The other end is hinged with the other end of described 8th connecting rod；Described six-bar linkage and described 8th connecting rod are positioned at described
The same side of seven-link assembly, described six-bar linkage, described seven-link assembly and described 8th connecting rod composition one
Individual described double rocker mechanism.
Specifically, described page device includes the second page device, the mechanical movement of described second page device
Structure include the second actuating unit, driving gear, L-type bar, two linkages, telescopic mounting, small column,
Tooth bar, second travelling gear the second cam；
The housing of described second page device includes the first panel and the second panel be arrangeding in parallel, described first
Panel and described second panel are connected by side plate, and described second actuating unit includes power gear, and described
Two actuating units, described driving gear and described tooth bar are arranged on described first panel, and described power teeth
Wheel engages with described driving gear, and one end of described two linkages is fixed on the rotary shaft of described driving gear
On, described L-type bar includes cross bar connected vertically and montant, and the other end of described two linkages is with described
One end of cross bar is rotatably connected, and the other end of described cross bar is connected with described montant, and described cross bar is another
One end is provided with the second travelling gear, and described second travelling gear engages with described tooth bar, described second cam
Being fixed on described second travelling gear, described telescopic mounting is connected with described montant, and described small column sets
On described telescopic mounting, described small column is tangent with described second cam, and described small column is provided with pen
Head.
Specifically, the mechanical moving structure of described second page device also includes being fixed on described second panel
Chute, described cross bar is arranged in described chute, and described chute is fixed on described second panel.
Specifically, described two linkages include the first cross bar and the second cross bar, described first cross bar and second
One end of cross bar is rotatably connected, and the other end of described first cross bar is rotatably connected with described L-type bar, institute
The other end stating the second cross bar is fixed in the rotary shaft of described driving gear.
Specifically, described page device includes the 3rd page device, the mechanical movement of described 3rd page device
Structure includes that the 3rd actuating unit and gear mechanism, described gear mechanism include being rotatably mounted to described
The first external gear and the second external gear on the housing of three page devices are coaxially connected with described second external gear
The 3rd external gear, the 9th connecting rod, the 4th external gear and the 5th external gear, described first outer gear sleeve is located at
The outside of described 3rd actuating unit, and the inwall of described first external gear and described 3rd actuating unit is defeated
Going out end to connect, described second external gear engages with described first external gear, and one end of described 9th connecting rod is fixed
In the rotary shaft of described second external gear, the other end of described 9th connecting rod is fixed on described 4th external gear
Rotary shaft on, described 5th external gear is installed in rotation on the middle part and the described 5th of described 9th connecting rod
External gear engages with described 3rd external gear and described 4th external gear respectively.
Specifically, the mechanical moving structure of described 3rd page device also includes coaxial with described 4th external gear
The 6th external gear connected, the radius of described 6th external gear is more than the radius of described 4th external gear.
Specifically, described page device includes the 4th page device, the mechanical movement of described 4th page device
Structure includes the 4th actuating unit, the 4th drive mechanism, crank and rocker mechanism, the first slide block mechanism, cam
Mechanism and the second slide block mechanism；
Described 4th actuating unit is connected with described 4th drive mechanism, and described 4th drive mechanism includes two
Output shaft；
The described crank and rocker mechanism of described 4th page device includes crank, the tenth connecting rod and rocking bar, institute
One described output shaft of one end and described 4th drive mechanism of stating crank is fixed and is connected, described tenth connecting rod
Two ends hinged with one end of the other end of described crank and described rocking bar respectively, the other end of described rocking bar hinge
Stating on the housing of the 4th page device described in being connected on, the middle part of described rocking bar is connected with described first slide block mechanism,
Described rocking bar is obtuse triangle structure, and three angles of described obtuse triangle structure are respectively arranged with pin joint；
Described cam mechanism includes the 4th cam, driven member and the 11st connecting rod, and described 4th cam is with described
Another described output shaft of 4th drive mechanism is fixing to be connected, and the edge of described 4th cam is driven with described
The EDGE CONTACT of part, described driven member is hinged with one end of described 11st connecting rod, described 11st connecting rod
Middle part is hinged on the housing of described 4th page device, the other end and described second of described 11st connecting rod
Slide block mechanism connects, and described 11st connecting rod is A shape structure, and three apex of described A shape structure are respectively
It is provided with pin joint.
Specifically, the housing of described page device has front and back, and described front is provided with picture, described
The back side is provided with the word for knowledge point that described page device utilizes is described and the schematic diagram of described knowledge point,
Described picture be separately mounted to described double-crank mechanism, described double rocker mechanism, described crank and rocker mechanism,
In one or more in described cam mechanism, described gear mechanism.
Specifically, described actuating unit is clockwork spring.
The technical scheme that the embodiment of the present invention provides has the benefit that the demonstration machinery that the present invention provides
The classroom teaching aid driven can be operated by mechanical mechanism so that demonstration can be moved continuously, meanwhile, and this class
Hall teaching aid structure is the most ingenious, easy and simple to handle, it is possible to show the mechanical movement principle in teaching concisely,
Improve the quality of teaching, during this teaching aid is fixed on transparent box simultaneously, it is simple to observe the fortune of each mechanism intuitively
Turn over journey, it is simple to student's divergent thinking and raising creativity consciousness, meanwhile, the mechanically operated classroom of this demonstration is taught
Tool material is merrily and lightheartedly easy to deposit or carry, and cheap.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, institute in embodiment being described below
The accompanying drawing used is needed to be briefly described, it should be apparent that, the accompanying drawing in describing below is only the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the side-looking structural representation demonstrating mechanically operated classroom teaching aid that the embodiment of the present invention provides；
Fig. 2 is the structural representation of the first page device that the embodiment of the present invention provides；
Fig. 3 is the second page apparatus structure schematic diagram that the embodiment of the present invention provides；
Fig. 4 is the apparatus structure schematic diagram of the second page device another kind state that the embodiment of the present invention provides；
Fig. 5 is the 3rd page apparatus structure schematic diagram that the embodiment of the present invention provides；
Fig. 6 is the backsight structural representation of the 4th page device that the embodiment of the present invention provides；
Fig. 7 be the embodiment of the present invention provide the 4th page device face structural representation.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Embodiment is described in further detail.
Embodiment
Embodiments providing a kind of quadric chain teaching aid, see Fig. 1, this teaching aid includes: ring attachment
Button 14 and the multiple page devices being arranged on described loose-leaf latch closure 14, this page device includes transparent
Housing and the mechanical moving structure being arranged in housing, the mechanical moving structure of each page device includes moving
In force mechanisms, double-crank mechanism, double rocker mechanism, crank and rocker mechanism, cam mechanism, gear mechanism
One or more.
Specifically, page device includes the first page device 11a, the mechanical movement of this first page device 11a
Structure include the first actuating unit 1, travelling gear 2, first connecting rod 3, second connecting rod 4, third connecting rod 5,
Fourth link the 6, the 5th connecting rod 7, six-bar linkage 8, seven-link assembly 9 and the 8th connecting rod 10.
Specifically, the gear shaft of travelling gear 2 is installed in rotation on the housing of the first page device 11a,
First actuating unit 1 engages with travelling gear 2, and one end of first connecting rod 3 is fixed on gear shaft, and first
The other end of connecting rod 3 is hinged with the centre of third connecting rod 5.
One end of second connecting rod 4 and one end of fourth link 6 are fixed on the housing of the first page device 11a,
The other end of second connecting rod 4 is hinged on one end of third connecting rod 5, the other end of fourth link 6, the 3rd company
The other end of bar 5 and one end of the 5th connecting rod 7 are hinged.First connecting rod 3, second connecting rod 4 and the 4th connect
Bar 6 is parallel and is positioned at the same side of third connecting rod 5, first connecting rod 3, second connecting rod 4 and third connecting rod
5 one double-crank mechanism of composition, first connecting rod 3, third connecting rod 5 and fourth link 6 form another
Double-crank mechanism.
The centre of six-bar linkage 8 is fixed on the housing of the first page device 11a, the other end of the 5th connecting rod 7
Hinged with one end of six-bar linkage 8, the other end of six-bar linkage 8 and one end of seven-link assembly 9 are hinged.The
Double leval jib 6 and six-bar linkage 8 are positioned at the same side of the 5th connecting rod 7, fourth link the 6, the 5th connecting rod 7, with
And six-bar linkage 8 forms a crank and rocker mechanism.
One end of 8th connecting rod 10 is fixed on the first page device 11a, the other end of seven-link assembly 9 and
The other end of eight connecting rods 10 is hinged.Six-bar linkage 8 and the 8th connecting rod 10 are positioned at the same side of seven-link assembly 9,
Six-bar linkage 8, seven-link assembly 9 and the 8th connecting rod 10 form a double rocker mechanism.
In the present embodiment, the centre of a connecting rod refers on this connecting rod, to the two ends of this connecting rod apart from equal
Position.
Being readily apparent that, in double leval jib, frame is fixed bar, and crank is the bar being connected with frame,
Connecting rod is the bar not being connected with frame.The length condition of double-crank mechanism be stock and quarter butt length it
With the length sum less than or equal to other two bar, and quarter butt is frame.The length bar of crank and rocker mechanism
Part is the length sum length sum less than or equal to other two bar of stock and quarter butt, and quarter butt is
Crank.The length condition of double rocker mechanism be stock and quarter butt length sum less than or equal to other two
The length sum of bar, and quarter butt is connecting rod.
Correspondingly, in the present embodiment, the length sum of first connecting rod 3 and third connecting rod 5 half is equal to the
Length sum between two connecting rods 4 and one end of one end of second connecting rod 4 and first connecting rod 3, and the second company
Length between one end and one end of first connecting rod 3 of bar 4 is the shortest.First connecting rod 3 and third connecting rod 5 one
The length sum of half is equal between fourth link 6 and one end of one end of fourth link 6 and first connecting rod 3
Length between length sum, and one end of one end of fourth link 6 and first connecting rod 3 is the shortest.4th even
The length sum of bar 6 and the 5th connecting rod 7 is less than six-bar linkage 8 half and one end and the 6th of fourth link 6
Length sum between the centre of connecting rod 8, and the length of fourth link 6 is the shortest.Six-bar linkage 8 half and
The length sum of the 8th connecting rod 10 is more than centre and the 8th connecting rod 10 of seven-link assembly 9 and six-bar linkage 8
Length sum between one end, and the length of seven-link assembly 9 is the shortest.
It should be noted that the structure of clockwork spring is typically complex, connecting rod is inconvenient to be arranged on clockwork spring, tooth
The structure of wheel is than the simple in construction of clockwork spring, and connecting rod is easily installed on gear, and therefore the present invention will be by sending out
Bar engages with travelling gear, and connecting rod is arranged on travelling gear, it is achieved clockwork spring drive link rotates.
First connecting rod 3, second connecting rod 4 and fourth link 6 are parallel, first connecting rod 3, second connecting rod 4,
And third connecting rod 5 forms a double-crank mechanism, first connecting rod 3, third connecting rod 5 and fourth link
6 form another double-crank mechanism.The two double-crank mechanism is symmetrical with first connecting rod 3 for axis of symmetry, permissible
Occur during preventing second connecting rod 4 and fourth link 6 from circling under the drive of first connecting rod 3
Stuck.
Specifically, one end of second connecting rod 4, one end of fourth link 6, the centre of six-bar linkage 8,
One end of eight connecting rods 10 is fixed by a pin on the housing of the first page device 11a (use stain mark in Fig. 1
Bright).
In the present embodiment, the gear shaft of travelling gear 2, one end of second connecting rod 4, fourth link 6
One end, the centre of six-bar linkage 8, the 8th connecting rod 10 one end on same straight line, facilitate student simultaneously
The motion of double-crank mechanism, the motion of crank and rocker mechanism, the motion of double rocker mechanism are seen intuitively
Examine.Be readily apparent that, in other embodiments, the gear shaft of travelling gear 2, one end of second connecting rod 4,
One end of fourth link 6, the centre of six-bar linkage 8, the 8th connecting rod 10 one end can not also be at same
On straight line, the invention is not limited in this regard.
Specifically, the first actuating unit 1 is clockwork spring.
Preferably, clockwork spring engagement parallel with travelling gear 2, the volume overall to reduce teaching aid.It is readily apparent that,
In actual applications, clockwork spring and travelling gear 2 can also Vertical Meshing, equally reach to pass through driving cog
The purpose of the power of wheel 2 transmission clockwork spring, the invention is not limited in this regard.
Alternatively, the number of teeth of clockwork spring is more than the number of teeth of travelling gear 2, to reach the effect of increment.Such as,
The number of teeth of clockwork spring 1 is 20, and the number of teeth of travelling gear 2 is 15.
In the present embodiment, length 40mm of first connecting rod 3, a length of 40mm of second connecting rod 4, the
The a length of 60mm of three connecting rods 5, a length of 40mm of fourth link 6, the 5th connecting rod 7 a length of
70mm, a length of 130mm of six-bar linkage 8, a length of 45mm of seven-link assembly 9, the 8th connecting rod
The a length of 80mm of 10, the distance between one end and one end of first connecting rod 3 of second connecting rod 4 is 30mm,
Distance between one end and one end of fourth link 6 of first connecting rod 3 is 30mm, one end of fourth link 6
And the distance between the centre of six-bar linkage 8 is 60mm, one end of six-bar linkage 8 and the 8th connecting rod 10
Distance between centre is 90mm.
Being readily apparent that, in other embodiments, the distance between length and the connecting rod of connecting rod can also be other
Value.Alternatively, length 35-45mm of first connecting rod 3, a length of 35-45mm of second connecting rod 4, the
The a length of 50-70mm of three connecting rods 5, a length of 35-45mm of fourth link 6, the length of the 5th connecting rod 7
Degree is a length of 40-50mm of 65-75mm, a length of 120-140mm of six-bar linkage 8, the seven-link assembly 9,
The a length of 75-85mm of the 8th connecting rod 10, between one end and one end of first connecting rod 3 of second connecting rod 4
Distance is 25-35mm, and the distance between one end and one end of fourth link 6 of first connecting rod 3 is
25-35mm, the distance between one end and the centre of six-bar linkage 8 of fourth link 6 is 55-65mm, the
Distance between one end and the centre of the 8th connecting rod 10 of six-bar linkage 8 is 85-95mm.
In a kind of implementation of the present embodiment, seeing Fig. 2, the housing of the first page device 11a includes side
Plate 12 and connect the first page device 11a and four pieces of connecting plates 13 of side plate 12, the first page device
11a, side plate 12 and four pieces of connecting plates 14 are transparent, while protecting connecting rod, meet
The requirement directly motion of connecting rod observed.
Alternatively, the housing of the first page device 11a constitutes a closed interval, prevents the portion in the teaching aid of classroom
Part is damaged.
Specifically, the length closing space can be 400mm-420mm, and the width of closed interval can be
287-307mm, the thickness of closed interval can be 10-20mm.
Alternatively, first connecting rod 3, second connecting rod 4, third connecting rod 5, fourth link the 6, the 5th connecting rod 7,
Six-bar linkage 8, seven-link assembly 9 and the 8th connecting rod 10 are plastic bar, the housing of the first page device 11a
For plastic plate, alleviate the weight of teaching aid, reduce the cost of teaching aid, improve the convenience that teaching aid carries.
Preferably, this teaching aid also includes cosmic background picture, moon picture, spaceman picture and space flight
Device picture, cosmic background picture is pasted onto on side plate 12, and moon picture is pasted onto on travelling gear 2, aerospace
Member's picture is pasted onto on one end of six-bar linkage 8, and spacecraft picture is pasted onto on the other end of the 8th connecting rod 10,
Improve the interest of teaching.
Preferably, the first page device 11a is carved with the word for knowledge point that teaching aid utilizes is described and this is known
Know the schematic diagram of point, facilitate teacher to carry out the explanation of knowledge point.
Following is a brief introduction of the operation principle of the quadric chain teaching aid that the present invention provides:
After upper clockwork spring, clockwork spring rotates, and drives the travelling gear 2 engaged with the external tooth of clockwork spring around rotation
Axle rotates, and then the first connecting rod 3 driving one end to be fixed on the gear shaft of travelling gear 2 is made around gear shaft
Circular motion.Moon picture is pasted onto on travelling gear 2, and student can see the moon through transparent side plate 12
Ball circles.
First connecting rod 3, second connecting rod 4 and third connecting rod 5 form a double-crank mechanism, first connecting rod
3, third connecting rod 5 and fourth link 6 form another double-crank mechanism, and first connecting rod 3 is by the 3rd
Connecting rod 5 drives second connecting rod 4 and fourth link 6 to circle respectively.Student can be through transparent the
The housing of one page device 11a sees the motion of double-crank mechanism.Wherein, second connecting rod 4 can paste the moon
Ball picture.
Fourth link the 6, the 5th connecting rod 7 and six-bar linkage 8 form a crank and rocker mechanism, and the 4th even
Bar 6 drives six-bar linkage 8 reciprocating by the 5th connecting rod 7.Spaceman picture is pasted onto six-bar linkage 8
One end on, student can see that spaceman is reciprocating through transparent side plate 12, through transparent the
The housing of one page device 11a sees the motion of crank and rocker mechanism.
Six-bar linkage 8, seven-link assembly 9 and the 8th connecting rod 10 form a double rocker mechanism, and the 6th even
Bar 8 drives the 8th connecting rod 10 reciprocating by seven-link assembly 9.Spacecraft picture is pasted onto the 8th connecting rod
On the other end of 10, student can see that spacecraft is reciprocating, through transparent through transparent side plate 12
The housing of the first page device 11a see the motion of double rocker mechanism.
The embodiment of the present invention by the first page device of providing by double-crank mechanism, crank and rocker mechanism, double
Endplay device is synthesized together, and is convenient for carrying.And, use clockwork spring to simultaneously drive double-crank mechanism, crank
Endplay device, the motion of double rocker mechanism, teaching process is time saving and energy saving.
Specifically, seeing Fig. 2 and Fig. 3, page device includes the second page device 11b, the second page device
The mechanical moving structure of 11b include the second actuating unit power set 22, driving gear 23, L-type bar 24,
Two linkages 25, telescopic mounting 26, small column 27, tooth bar the 28, second travelling gear 29 and
Two cams 30；
The housing of the second page device 11b includes the first panel and the second panel be arrangeding in parallel, the first panel
Being connected by side plate with the second panel, the second power set 22 include power gear 22a, the second power set
22, driving gear 23 and tooth bar 28 are arranged on the first panel, and the second power gear 22a and driving tooth
Wheel 23 engagement, one end of two linkages 25 is fixed in the rotary shaft of driving gear 23, L-type bar 24
Including cross bar 241 connected vertically and montant 242, the other end of two linkages 25 and the one of cross bar 241
End is rotatably connected, and the other end of cross bar 241 is connected with montant 242, and sets on the other end of cross bar 241
Having the second travelling gear 29, the second travelling gear 29 to engage with tooth bar 28, the second cam 30 is fixed on second
On travelling gear 29, telescopic mounting 26 is connected with montant 242, and small column 27 is located at telescopic mounting 26
On, small column 27 is tangent with the second cam 30, and small column 27 is provided with nib.
In the present embodiment, the second actuating unit 22 includes that clockwork spring, clockwork spring are connected with power gear 22a.?
In other embodiments, this second actuating unit 22 can also be made up of equipment such as electro-motors.
Further, this classroom teaching aid also includes chute 24a, the mechanical moving structure of the second page device 11b
Also including the chute 24a being fixed on the second panel, cross bar 241 is arranged in chute 24a.
Seeing Fig. 2 and Fig. 3, two linkages 25 include the first cross bar 252 and the second cross bar 251, first
One end of cross bar 252 and the second cross bar 251 is rotatably connected, the other end of the first cross bar 252 and L-type bar
24 are rotatably connected, and the other end of the second cross bar 251 is fixed in the rotary shaft of driving gear 23.
It addition, in the present embodiment, above-mentioned nib can also be close to the second panel, so that nib can be
Draw on two panels.
When the second actuating unit 22 is opened, driving driving gear 23 to rotate, driving gear 23 is by two even
Linkage 25 drives L-type bar 24 to slidably reciprocate in chute 4a, and correspondingly, the second travelling gear 29 exists
Back and forth movement on tooth bar 28, when travelling gear 29 rotates, the second cam 30 also rotates, owing to second is convex
Wheel 30 is tangent with small column 27, and therefore, small column 27 can move along the montant 242 of L-type bar 24,
And on another direction, small column 27 also can move along with the cross bar 241 of L-type bar 24, therefore transport at this
During Dong, the movement locus of small column 27 is a cam profile curve.Small column 27 arranges pen
This cam profile curve can be depicted on the second transparent panel by head, for observing, learning and study,
Such as calculate cam profile curve equation.
In the present embodiment, the first panel and the second panel are glass plastic panel.Employing glass plastic is made
The box of teaching aid can alleviate weight, is convenient for carrying and moves, low cost.
In the present embodiment, telescopic mounting 26 can be sleeve, and sleeve is slidably connected with montant 242.
In other embodiments, telescopic mounting 26 can also be spring assembly, spring assembly and montant 242
Connect.
When implementing, power set 22 and driving gear 23 are arranged on the first panel by connector,
Connector includes screw bolt and nut.
When implementing, chute 24a can be sticked on the second panel by glue.
Further, the second panel can also be printed the knowledge point relevant to cam profile curve, convenient
Learn when observing this teaching aid, allow machinery classroom be full of vividness and artistry.
Further, it is also possible to paste picture on the gear in this teaching aid, to strengthen the aesthetic measure of teaching aid,
Specifically, this picture is pasted onto on small column 27 by slender axles.
The embodiment of the present invention is engaged with driving gear by the power gear of the second actuating unit, and L-type bar includes hanging down
The direct-connected cross bar connect and montant, one end of two linkages is fixed in the rotary shaft of driving gear, two connecting rods
The other end of mechanism is rotatably connected with one end of cross bar, and the other end of cross bar is connected with montant, power set
Driving driving gear to rotate during work, driving gear drives L-type bar slidably reciprocating by two linkages,
And the other end of cross bar is additionally provided with travelling gear, driving cog wheel and rack engages, and therefore travelling gear is at tooth bar
Upper back and forth movement, owing to the second cam is fixed on travelling gear, so when travelling gear rotates, second
Cam also rotates, and owing to the second cam is tangent with small column, therefore, small column can be along the montant of L-type bar
Motion, and on another direction, small column also can be along with the beam movement of L-type bar, in this motor process,
The movement locus of small column is a cam profile curve, and arranging nib on small column can take turns this cam
Wide curve is depicted, and for observing, learning and study, this teaching aid is the most vivid, uses and takes
Band is convenient, and low cost, allows machinery classroom be full of vividness and artistry.
Seeing Fig. 4 and Fig. 5, page device includes the 3rd page device 11c, the machine of the 3rd page device 11c
Tool motion structure includes the 3rd actuating unit 301 and gear mechanism, and this gear mechanism includes being rotatably fixed
The first external gear 31 and the second external gear 32 on the housing of the 3rd page device 11c, with the second external gear
32 the 3rd coaxially connected external gear the 33, the 9th connecting rod the 304, the 4th external gear 34 and the 5th external gears 35,
First external gear 31 is set in the outside of the 3rd actuating unit 301, and the inwall of the first external gear 31 and
The outfan of three actuating units 301 connects, and the second external gear 32 engages with the first external gear 31, and the 9th even
One end of bar 304 is fixed in the rotary shaft of the second external gear 32, and the other end of the 9th connecting rod 304 is fixed on
In the rotary shaft of the 4th external gear, the 5th external gear 35 be installed in rotation on the 9th connecting rod 304 middle part and
5th external gear 35 engages with the 3rd external gear 33 and the 4th external gear 34 respectively.
Alternatively, the radius of the 3rd external gear 33 is less than the radius of the second external gear 32.If the second external tooth
Wheel 32 is identical with the radius of the 3rd external gear 33, and a gear can shelter from another gear, it has not been convenient to see
Examine the coaxial transmission of gear.
Preferably, the mechanical moving structure of the 3rd page device 11c also includes coaxially connecting with the 4th external gear 34
The 6th external gear 36 connect, the radius of the 6th external gear 36 is more than the radius of the 4th external gear 34.Outside 6th
Gear 36 rotates around the rotary shaft of the second external gear 32 together along with the 4th external gear 34, and, the 3rd
External gear 33 rotates and drives the 5th external gear 35 engaged to rotate, and the 5th external gear 35 drives and nibbles with it
The 4th external gear 34 closed rotates, and the 4th external gear 34 drives the 6th external gear 36 being coaxial therewith to rotate,
I.e. the 4th external gear the 34, the 5th external gear the 35, the 6th external gear 36 is in the rotation around the second external gear 32
Also rotation while axle turnover.
Further, the mechanical moving structure of the 3rd page device 11c also includes engaging with the 6th external gear 36
Internal gear 37, the length of the 9th connecting rod 304 that the 3rd external gear 33 and the 4th external gear 34 connect and the
The radius sum of six external gears 36, equal with the length of the radius of internal gear 37, turning of the 6th external gear 36
Dynamic, drive the internal gear 37 engaged to rotate.
Preferably, first external gear the 31, second external gear the 32, the 3rd external gear the 33, the 4th external gear 34,
On the surface of the 5th external gear the 35, the 6th external gear 36 and internal gear 37, the radial direction along gear is all provided with
Having mark line, mark line is straight line.When calculating the gear ratio between gear, with the graduation mark of T-shaped chi and
The center of circle alignment of tested gear, aligns with T-shaped chi graduation mark in protractor plane one end.When gear does not rotates,
Carry out angular surveying again.Angle before rotation is the angle of angle between mark line and graduation mark, rotates and stops
After angle be the angle of angle between mark line and graduation mark, then after the rotational angle of gear=rotation stops
Angle+number of turns * before angle-rotation 360 °, the then rotational angle/rotation time of the angular velocity=gear of gear,
Then gear ratio is the ratio of angular velocity of gear.
Alternatively, first external gear the 31, second external gear the 32, the 3rd external gear the 33, the 4th external gear 34,
Picture is all posted on the surface of the 5th external gear the 35, the 6th external gear 36 and internal gear 37.At gear
Picture on surface mount so that teaching aid is more attractive in appearance.
Specifically, picture is gear picture or celestial body picture.For example, it is possible to the first external gear 31,
Fixed star picture is pasted on two external gear the 32, the 3rd external gears 33 and internal gear 37, the 4th external gear,
Stick planet picture on 5th external gear and the 6th external gear 36, so, can also be drilled by this gear teaching aid
Show the forms of motion between celestial body.
Alternatively, first external gear the 31, second external gear the 32, the 3rd external gear the 33, the 4th external gear 34,
5th external gear the 35, the 6th external gear 36 and internal gear 37 are plastic gear.Plastic gear quality
Merrily and lightheartedly, it is simple to carry, and cost is low.
Specifically, the housing of the 3rd page device 11c can be transparent boxes.More specifically, the 3rd page dress
Put the housing of 11c can be A3 paper size, thickness be 10～20nm.The 3rd transparent page device 11c
Housing can facilitate the motion observing gear from the arbitrary face of framework.
Optionally, the housing of the 3rd page device 11c can be plastic frame, and plastic frame quality is slim and graceful, just
In carrying, and cost is low.
Specifically, the 3rd actuating unit 301 can be clockwork spring.
A kind of gear religion that the embodiment of the present invention provides is illustrated below by the work process of gear teaching aid
Tool.
To clockwork spring energetically, clockwork spring drives the first external gear 31 to rotate, second engaged with the first external gear 31
External gear 32 rotates with, and threeth external gear 33 coaxial with the second external gear 32 rotates, and by the 9th
Connecting rod 304, drives the 4th external gear the 34, the 5th external gear 35 to revolve around the rotary shaft of the second external gear 32
Turning, meanwhile, rotating of the 3rd external gear 33 drive the 5th external gear 35 that engages to rotate, outside the 4th
Gear 34 engages with the 5th external gear 35, then the 4th external gear 34 also rotates, the 6th external gear 36 and
Four external gears 34 are coaxial, then the 6th external gear 36 is along with the 4th external gear 34 is around the second external gear 32
Rotary shaft goes back rotation while rotating, the 6th external gear 36 drives the internal gear engaged with the 6th external gear 36
37 rotate.
The embodiment of the present invention provides the 3rd page device to drive the first external gear to rotate by clockwork spring, the first external tooth
Wheel rotate drive engage second external gear rotate, the second external gear driven by rotating wheel be coaxial therewith the 3rd
External gear rotates, and drives the 4th external gear and the 5th external gear around the second external gear by the 9th connecting rod simultaneously
Rotary shaft rotate, owing to the 5th external gear engages with the 3rd external gear and the 4th external gear respectively, then the 3rd
External gear rotates and drives the 4th external gear and the 5th external gear autobiography, such that it is able to demonstrate gear visually simultaneously
Motion, transmission between the gear that is meshed, the transmission of in-line gears, the motion of the 9th connecting rod and transmission,
And clockwork spring and gear are located in framework, it is simple to carrying of gear teaching aid, this gear teaching aid structure is simple, easily
Disassembling, assembling and replacing；4th external gear, the 5th external gear and the 3rd external gear are connected by the 9th connecting rod, and image is straight
Demonstrate gear drive and the 9th link transmission with seeing.
Driving the first external gear to rotate by clockwork spring, the first external gear rotates and drives the second external tooth engaged
Wheel rotates, and the 3rd external gear that the second external gear driven by rotating wheel is coaxial therewith rotates, simultaneously by the 9th connecting rod
The 4th external gear and the 5th external gear is driven to rotate, due to the 5th external gear around the rotary shaft of the second external gear
Engage with the 3rd external gear and the 4th external gear respectively, then the 3rd external gear rotates and drives the 4th external gear simultaneously
With the 5th external gear autobiography, such that it is able to demonstrate the motion of gear visually, biography between the gear that is meshed
Move, the transmission of in-line gears, the motion of the 9th connecting rod and transmission, and clockwork spring and gear be located in framework,
Being easy to carrying of gear teaching aid, this gear teaching aid structure is simple, replacing easy to assemble.
Seeing Fig. 6 and Fig. 7, page device includes the 4th page device 11d, the machine of the 4th page device 11d
Tool motion structure includes that the 4th actuating unit the 41, the 4th drive mechanism 42, crank and rocker mechanism 43, first are sliding
Block mechanism 44, cam mechanism 45 and the second slide block mechanism 46.
Specifically, the 4th actuating unit 41 is connected with the first gear 421, provides for the 4th drive mechanism 42
Power, the 4th drive mechanism 42 is connected with crank and rocker mechanism 43 and cam mechanism 45 respectively, is used for receiving
Power also drives crank and rocker mechanism 43 and cam mechanism 45 to operate；Second gear 422 is by the first gear 421
Drive, be respectively the Liang Chu branch driven by the 3rd gear 423 and the 4th gear 424 and power is provided；
The gear of the 4th drive mechanism 42 is each attached on the housing of the 4th page device 11d, it is ensured that the present embodiment
The stability of the 4th drive mechanism 42 during teaching aid overall operation.
Specifically, the housing of the 4th page device 11d includes side panel and connects the connecting plate of side panel,
Side panel and connecting plate are all transparent engineering plastic flitch.The housing of the 4th page device 11d is photo frame structure,
From the end face of the housing of the 4th page device 11d it is observed that the first slide block mechanism 44 and the second slide block mechanism
The motion conditions of 46, from the bottom surface of the housing of the 4th page device 11d it is observed that the fortune of above-mentioned each mechanism
Dynamic track, illustrates the motion principle of complex mechanism the most intuitively, can improve the quality of teaching；Meanwhile,
Use engineering plastic flitch as the material of the housing of the 4th page device 11d so that teaching aid overall price is cheap
And be convenient for carrying.
4th actuating unit 41 is connected with the 4th drive mechanism 42, and the 4th drive mechanism 42 includes two outputs
Axle.
Specifically, the 4th actuating unit 41 is for providing power to the 4th drive mechanism 42.As shown in Figure 3-4,
Actuating unit 21 can be clockwork spring.The core texture of clockwork spring is plane scroll spring.Plane scroll spring is named again
Clockwork spring, clockwork spring can form rotating torque in the plane being perpendicular to axle, so as to storing energy.
After outer bound pair clockwork spring does work, the merit of this part is converted to the elastic deformation energy of clockwork spring, when clockwork spring work
When making, the elastic deformation energy of clockwork spring the most gradually discharges, and drives the 4th drive mechanism 42 operating acting.Easily know
Road, is not limited to the 4th actuating unit 41 using clockwork spring as the present embodiment, it is also possible to use such as electricity herein
Machine, rocking bar equal power device or the power source of other forms.
4th drive mechanism 42 includes first gear the 421, second gear the 422, the 3rd gear 423 and the 4th
Gear 424, the first gear 421 is connected with the 4th actuating unit 41 and engages with the second gear 422, the
Two gears 422 engage with the 3rd gear 423 and the 4th gear 424 respectively, the 3rd gear 423 and crank 431
One end connect by output shaft is fixing, it is defeated that the 4th gear 424 and the 4th cam 451 pass through another
Shaft is fixing to be connected.
The crank and rocker mechanism 43 of the 4th page device 11d includes crank the 431, the tenth connecting rod 432 and shakes
Bar 433, one end of crank 431 is fixing with an output shaft of the 4th drive mechanism 42 to be connected, the tenth connecting rod
The two ends of 432 are hinged with one end of the other end of crank 431 and rocking bar 433 respectively, the other end of rocking bar 433
Being hinged on the 4th page device 11d, the middle part of rocking bar 433 is connected with the first slide block mechanism 44；Rocking bar 433
For obtuse triangle structure, three angles of obtuse triangle structure are respectively arranged with pin joint.
Specifically, one end of crank 431 is connected with the 3rd gear 423 of the 4th drive mechanism 42, the 3rd tooth
One end that crank 431 is connected with the tenth connecting rod 432 can be driven during wheel 423 rotation around the 3rd gear 423 center
Rotate, owing to one end of rocking bar 433 is fixed on the housing of the 4th page device 11d by hinge, so
Rocking bar 433 can be driven to do oscillating traverse motion via the tenth connecting rod 432 when crank 432 rotates.
Specifically, in blunt three-legged structure, the pin joint of one end, obtuse angle is used for hinged rocking bar 433 and the first slide block machine
12nd connecting rod 441 of structure 44, can avoid the tenth connecting rod 432 motor process on the premise of saving material
In produce interference and collision with the 12nd connecting rod 441；Obtuse angle terminates nearly rocking bar 433 and the hinge of the tenth connecting rod 432
Connect end so that the tenth connecting rod 432 can drive the 12nd connecting rod 441 to produce bigger position in motor process
Move, promote the mechanical movement of the first slide block mechanism 44 to become apparent from.
Cam mechanism 45 includes the 4th cam 451, driven member the 452 and the 11st connecting rod 453, the 4th cam
451 fixing with another output shaft of the 4th drive mechanism 42 are connected, and the edge of the 4th cam 451 is with driven
The EDGE CONTACT of part 452, driven member 452 is hinged with one end of the 11st connecting rod 453, the 11st connecting rod 453
Middle part be hinged on the housing of the 4th page device 11d, the other end of the 11st connecting rod 453 and second sliding
Block mechanism 46 connects, the A shape structural top closed angle end of the 11st connecting rod 453 as the 11st connecting rod 453 with
The pin joint of fixed bin, the 11st remaining two ends of connecting rod 453 can be moved in the same direction as the bottom end of A shape structure
Dynamic, under ensureing each structural member kinestate, do not save space while interference and collision.
Specifically, the axle of the axle of the 4th cam 451 and the 4th gear 424 of the 4th drive mechanism 42 connects,
Rotating together when the 4th gear 424 rotates, due to the contour curve of the 4th cam 451, only some is
Circular arc, so when the 4th cam 451 rotates, the driven member 452 contacted with the 4th cam 451 can interval
Moving back and forth of property, the middle part of the 11st connecting rod 453 is fixed on the 4th page device 11d by hinge
Housing on, when one end that the 11st connecting rod 453 is connected with driven member 452 moves back and forth, the 12nd even
The other end of bar 453 does intermittent oscillating traverse motion.In the present embodiment, driven member 452 is roundlet cylindricality
Shape, can increase the area that driven member 452 contacts with the 4th cam 451, it is possible to more stably make driven
Part 452 moves with the 4th cam 451；It is readily apparent that, does not the most limit the shape of driven member 452, also
Little ball or the parts of other shapes and the 4th cam 451 can be used to contact.
Further, the 11st connecting rod 453 is A shape structure, and three apex of A shape structure are respectively provided with
There is pin joint.
First slide block mechanism 44 includes the 12nd connecting rod the 441, first slide block 442 and the first guide rail 443, the
One end of 12 connecting rods 441 is hinged with rocking bar 433, the other end of the 12nd connecting rod 441 and the first slide block 442
Hinged, the first slide block 442 is placed on the first guide rail 443.
Further, the first guide rail 443 being provided with C-channel, the first slide block 442 is placed in C-channel.
Specifically, the first guide rail 443 is fixed on the 4th page device 11d, the one of the 12nd connecting rod 441
End is hinged on the centre of rocking bar 433, when rocking bar 433 does oscillating traverse motion, can pass through the 12nd connecting rod
441 band movable sliders 442 slide on the first guide rail 443, due to the position-limiting action of C-channel, slide block 442
Can only move reciprocatingly in C-channel but without departing from guide rail, be readily apparent that, be not limited to arrange herein
C-channel, it is also possible to U-lag etc. such as is set there is the groove of position-limiting action；On the other hand, groove is all right
Being arranged on the first slide block 442, be equipped with prominent slideway on the first guide rail 443, now first is sliding
Block 442 equally smoothly moves back and forth on the first guide rail 443；Can be bonding on first slide block 442
Picture, when teaching aid overall operation, can form dynamic running orbit figure, promote teaching process more to have
Vividness.
Second slide block mechanism 46 includes the 13rd connecting rod the 461, second slide block 462 and the second guide rail 463, the
One end of double leval jib 461 is hinged with one end of second connecting rod 453, the other end of the 13rd connecting rod 461 and
Two slide blocks 462 are hinged, and the second slide block 462 is placed on the second guide rail 463.
Further, the second guide rail 463 being provided with C-channel, the second slide block 462 is placed in C-channel.
Specifically, one end of the 13rd connecting rod 461 is hinged on one end of the 12nd connecting rod 453, the 12nd
When connecting rod 453 does intermittent oscillating traverse motion, can be existed by the 13rd connecting rod 461 band movable slider 462
Slide on second guide rail 463, due to the position-limiting action of C-channel, between slide block 462 can only do in C-channel
The reciprocating motion of having a rest property but without departing from guide rail, be readily apparent that, be not limited to arrange C-channel herein, also
U-lag etc. such as can be set there is the groove of position-limiting action；On the other hand, groove can also be arranged on second
On slide block 462, being equipped with prominent slideway on the second guide rail 463, now the second slide block 462 is same
Smoothly can move back and forth on the second guide rail 463；Second slide block the 462, first slide block 442 and the 3rd tooth
Bonding picture can be distinguished on wheel 423, when teaching aid overall operation, dynamic running orbit figure can be formed,
Teaching process is promoted more to have vividness.
The teaching aid that the present embodiment provides before use, can make clockwork spring store elastic deformation energy in advance, make
The energy of used time release the 4th actuating unit 41 so that clockwork spring drives the 4th drive mechanism operating, the present embodiment
In the 4th drive mechanism 42 can drive the operating of Liang Zu mechanism simultaneously, first group by crank and rocker mechanism 43 and the
One slide block mechanism 44 forms, and in the case of teaching aid operates, the first slide block 442 does on the first guide rail 443
Move back and forth；Second group is made up of cam mechanism 45 and the second slide block mechanism 46, in the situation of teaching aid operating
Under, the second slide block 462 does intermittent reciprocating motion on the second guide rail 463.
4th page device of the teaching aid that the present embodiment provides is plane mechanism, can Calculation Plane according to this teaching aid
The degree of freedom (number of the self-movement that each component can have relative to frame in mechanism) of mechanism, computing formula
For F=3n-(2PL+Ph), wherein, n is movable part number, PL be lower pair retrain number, Ph be higher pair about
Bundle number.Meanwhile, can be with manufacturing mechanism kinematic sketch according to this teaching aid, a kind of fortune according to mechanism
Dynamic size, the position of each kinematic pair made by chi according to a certain percentage, and with the simple lines of international regulations and symbol
Number represent component and kinematic pair, it is possible to the accurately simple and clear figure of outgoing mechanism motion feature.Mechanism is used to pass
Pass motion and power or change the machinery of forms of motion, usually requiring that mechanism has determine relative
Motion, the degree of freedom of Calculation Plane mechanism can help to analyze and design organization；Manufacturing mechanism kinematic sketch energy
Enough reflect the annexation between each component and movement relation intuitively, understand teaching helps student
Knowledge point is the most useful, and the teaching aid that the present embodiment provides has preferably facilitation to the lifting of quality of instruction.
The 4th page device that the embodiment of the present invention provides uses the 4th actuating unit, the 4th drive mechanism to drive
Other mechanical mechanisms operate, and apparatus structure is the most ingenious, easy and simple to handle, it is possible to show teaching concisely
In mechanical movement principle, improve the quality of teaching, during this teaching aid is fixed on transparent box simultaneously, it is simple to straight
Seeing ground and observe the operation process of each mechanism, simultaneously facilitate and deposit or carry, box is by transparent engineering plastic flitch
Making, material is slim and graceful, cheap.
Specifically, seeing Fig. 1, this demonstration mechanically operated classroom teaching aid can also include cover 14a, and this is lived
Page latch closure 14 is fixed on cover 14a.
It should be noted that in the present embodiment, page device includes aforementioned first to fourth page device,
But being not limited in first to fourth page device, the mechanical moving structure in page device can use it
Its combining form.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all the present invention's
Within spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in the present invention's
Within protection domain.
Claims (9)
1. demonstrate mechanically operated classroom teaching aid for one kind, it is characterised in that described teaching aid includes: loose-leaf latch closure
(14) and be arranged on the multiple page devices on described loose-leaf latch closure (14), described page device includes
Transparent housing and be arranged on the mechanical moving structure in described housing, the machinery of each described page device
Motion structure include actuating unit, double-crank mechanism, double rocker mechanism, crank and rocker mechanism, cam mechanism,
One or more in gear mechanism, described page device includes the first page device (11a), described first book
The mechanical moving structure of page device (11a) includes the first actuating unit (1), travelling gear (2), the first company
Bar (3), second connecting rod (4), third connecting rod (5), fourth link (6), the 5th connecting rod (7), the 6th
Connecting rod (8), seven-link assembly (9) and the 8th connecting rod (10),
The gear shaft of described travelling gear (2) is installed in rotation on the shell of described first page device (11a)
On body, described first actuating unit (1) is engaged with described travelling gear (2), described first connecting rod (3)
One end be fixed on described gear shaft, the other end of described first connecting rod (3) and described third connecting rod (5)
Centre hinged；
One end of described second connecting rod (4) and one end of described fourth link (6) are fixed on described first book
On the housing of page device (11a), the other end of described second connecting rod (4) is hinged on described third connecting rod (5)
One end, the other end of described fourth link (6), the other end of described third connecting rod (5) and described
One end of five connecting rods (7) is hinged；Described first connecting rod (3), described second connecting rod (4) and described
Double leval jib (6) is parallel and is positioned at the same sides of described third connecting rod (5), described first connecting rod (3), institute
State second connecting rod (4) and described third connecting rod (5) composition one described double-crank mechanism, described first
Connecting rod (3), described third connecting rod (5) and described fourth link (6) form another described double-crank
Mechanism；
The centre of described six-bar linkage (8) is fixed on the housing of described first page device (11a), described
The other end of the 5th connecting rod (7) is hinged with one end of described six-bar linkage (8), described six-bar linkage (8)
The other end hinged with one end of described seven-link assembly (9)；Described fourth link (6) and the described 6th is even
Bar (8) is positioned at the same side of described 5th connecting rod (7), described fourth link (6), described 5th connecting rod
(7) and described six-bar linkage (8) composition one described crank and rocker mechanism；
One end of described 8th connecting rod (10) is fixed on the housing of described first page device (11a), institute
The other end stating seven-link assembly (9) is hinged with the other end of described 8th connecting rod (10)；Described six-bar linkage
And described 8th connecting rod (10) is positioned at the same side of described seven-link assembly (9), described six-bar linkage (8)
(8), described seven-link assembly (9) and described 8th connecting rod (10) one described double rocker mechanism of composition.
Classroom the most according to claim 1 teaching aid, it is characterised in that described page device includes second
Page device (11b), the mechanical moving structure of described second page device (11b) includes the second actuating unit
(22), driving gear (23), L-type bar (24), two linkages (25), telescopic mounting (26),
Small column (27), tooth bar (28), the second travelling gear (29) and the second cam (30)；
The housing of described second page device (11b) includes the first panel and the second panel be arrangeding in parallel, institute
Stating the first panel and described second panel is connected by side plate, described second actuating unit (22) includes power
Gear (22a), described second actuating unit (22), described driving gear (23) and described tooth bar (28)
It is arranged on described first panel, and described power gear (22a) engages with described driving gear (23),
One end of described two linkages (25) is fixed in the rotary shaft of described driving gear (23), described L
Type bar (24) includes cross bar connected vertically (241) and montant (242), described two linkages (25)
One end of the other end and described cross bar (241) be rotatably connected, the other end of described cross bar (241) with
Described montant (242) connects, and the other end of described cross bar (241) is provided with the second travelling gear (29),
Described second travelling gear (29) is engaged with described tooth bar (28), and described second cam (30) is fixed on
On described second travelling gear (29), described telescopic mounting (26) is connected with described montant (242),
Described small column (27) is located on described telescopic mounting (26), described small column (27) and described the
Two cams (30) are tangent, and described small column (27) is provided with nib.
Classroom the most according to claim 2 teaching aid, it is characterised in that described second page device (11b)
Mechanical moving structure also include the chute (24a) that is fixed on described second panel, described cross bar (241)
It is arranged in described chute (24a).
Classroom the most according to claim 2 teaching aid, it is characterised in that described two linkages (25)
Including the first cross bar (252) and the second cross bar (251), described first cross bar (252) and the second cross bar (251)
One end be rotatably connected, the other end of described first cross bar (252) and described L-type bar (24) are rotatable
Connecting, the other end of described second cross bar (251) is fixed in the rotary shaft of described driving gear (23).
Classroom the most according to claim 1 teaching aid, it is characterised in that described page device includes the 3rd
Page device (11c), the mechanical moving structure of described 3rd page device (11c) includes the 3rd actuating unit
(301) and gear mechanism, described gear mechanism includes being rotatably mounted to described 3rd page device (11c)
Housing on the first external gear (31) and the second external gear (32) and described second external gear (32) with
3rd external gear (33) of axle connection, the 9th connecting rod (304), the 4th external gear (34) and the 5th external gear
(35), described first external gear (31) is set in the outside of described 3rd actuating unit (301), and institute
The outfan of the inwall and described 3rd actuating unit (301) of stating the first external gear (31) is connected, and described
Two external gears (32) engage with described first external gear (31), and one end of described 9th connecting rod (304) is solid
Being scheduled in the rotary shaft of described second external gear (32), the other end of described 9th connecting rod (304) is fixed on
In the rotary shaft of described 4th external gear (34), described 5th external gear (35) is installed in rotation on institute
State the middle part of the 9th connecting rod (304) and described 5th external gear (35) respectively with described 3rd external gear (33)
With described 4th external gear (34) engagement.
Classroom the most according to claim 5 teaching aid, it is characterised in that described 3rd page device (11c)
Mechanical moving structure also include sixth external gear (36) coaxially connected with described 4th external gear (34),
The radius of described 6th external gear (36) is more than the radius of described 4th external gear (34).
Classroom the most according to claim 1 teaching aid, it is characterised in that described page device includes the 4th
Page device (11d), the mechanical moving structure of described 4th page device (11d) includes the 4th actuating unit
(41), the 4th drive mechanism (42), crank and rocker mechanism (43), the first slide block mechanism (44), cam
Mechanism (45) and the second slide block mechanism (46)；
Described 4th actuating unit (41) is connected with described 4th drive mechanism (42), described 4th transmission
Mechanism (42) includes two output shafts；
The described crank and rocker mechanism (43) of described 4th page device (11d) include crank (431),
Ten connecting rods (432) and rocking bar (433), one end of described crank (431) and described 4th drive mechanism
(42) a described output shaft is fixing to be connected, the two ends of described tenth connecting rod (432) respectively with described song
The other end of handle (431) and one end of described rocking bar (433) are hinged, the other end of described rocking bar (433)
Stating on the housing of the 4th page device (11d) described in being hinged on, the middle part of described rocking bar (433) is with described
First slide block mechanism (44) connects, and described rocking bar (433) is obtuse triangle structure, and described obtuse triangle is tied
It is respectively arranged with pin joint on three angles of structure；
Described cam mechanism (45) includes the 4th cam (451), driven member (452) and the 11st connecting rod (453),
Described 4th cam (451) is fixing with another described output shaft of described 4th drive mechanism (42) to be connected,
The edge of described 4th cam (451) and the EDGE CONTACT of described driven member (452), described driven member (452)
Hinged with one end of described 11st connecting rod (453), the middle part of described 11st connecting rod (453) is hinged on
On the housing of described 4th page device (11d), the other end of described 11st connecting rod (453) is with described
Second slide block mechanism (46) connects, and described 11st connecting rod (453) is A shape structure, and described A shape is tied
Three apex of structure are respectively arranged with pin joint.
8. according to classroom teaching aid described in any one of claim 1-7, it is characterised in that described page device
Housing has front and back, and described front is provided with picture, and the described back side is provided with for illustrating that described page fills
Putting word and the schematic diagram of described knowledge point of the knowledge point of utilization, described picture is separately mounted to described hyperbolic
Handle mechanism, described double rocker mechanism, described crank and rocker mechanism, described cam mechanism, described gear mechanism
In one or more on.
9. according to the classroom teaching aid described in any one of claim 1-7, it is characterised in that described actuating unit
For clockwork spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410163631.5A CN104008695B (en) | 2014-04-22 | 2014-04-22 | A kind of demonstration mechanically operated classroom teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410163631.5A CN104008695B (en) | 2014-04-22 | 2014-04-22 | A kind of demonstration mechanically operated classroom teaching aid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104008695A CN104008695A (en) | 2014-08-27 |
| CN104008695B true CN104008695B (en) | 2016-08-31 |
Family
ID=51369330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410163631.5A Expired - Fee Related CN104008695B (en) | 2014-04-22 | 2014-04-22 | A kind of demonstration mechanically operated classroom teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104008695B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105725600A (en) * | 2016-04-06 | 2016-07-06 | 汤贵春 | Multi-card continuous display device and manufacturing method |
| CN106157793B (en) * | 2016-08-30 | 2022-07-22 | 合肥磐石智能科技股份有限公司 | Separated multi-rod combined demonstration device |
| CN106940962B (en) * | 2017-04-21 | 2023-01-03 | 中国地质大学（武汉） | Multifunctional mechanical principle teaching aid |
| CN108022499B (en) * | 2017-12-26 | 2023-11-14 | 宁波大学 | Open-close type mechanical principle demonstration teaching aid |
| CN112863300A (en) * | 2021-01-27 | 2021-05-28 | 贵州金之翼大数据科技有限公司 | Education science and technology is with safe type teaching aid |
| CN113487955A (en) * | 2021-06-02 | 2021-10-08 | 金超焕 | Multifunctional mechanical motion display teaching aid |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204087671U (en) * | 2014-04-22 | 2015-01-07 | 江汉大学 | A kind of mechanically operated classroom teaching aid |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2394279Y (en) * | 1999-04-01 | 2000-08-30 | 徐剑雄 | Transmission mechanism demonstrator |
| CN2485734Y (en) * | 2001-03-16 | 2002-04-10 | 陈楚南 | Page turning and drawer style demonstrator for electrostatic field and potential |
| CN201886690U (en) * | 2010-12-17 | 2011-06-29 | 魏秀军 | Hinged four-bar linkage type demonstration device |
| CN202319339U (en) * | 2011-12-02 | 2012-07-11 | 高栋 | Page turning book for Chinese teaching demonstration |
| CN203085000U (en) * | 2013-03-13 | 2013-07-24 | 仝亚男 | Demonstrator for revolute four-bar mechanism |
| CN203405980U (en) * | 2013-08-25 | 2014-01-22 | 侯子强 | History teaching demonstration teaching aid |
-
2014
- 2014-04-22 CN CN201410163631.5A patent/CN104008695B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204087671U (en) * | 2014-04-22 | 2015-01-07 | 江汉大学 | A kind of mechanically operated classroom teaching aid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104008695A (en) | 2014-08-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104008695B (en) | A kind of demonstration mechanically operated classroom teaching aid | |
| CN103971584B (en) | A kind of cam mechanism integrative demonstration teaching aid | |
| CN204650897U (en) | Mechanical principle multimachine structure interlock combined appliance for teaching | |
| CN104008694A (en) | Teaching aid for drawing contour curve of cam | |
| CN203441960U (en) | Double-shaft coaction torsion pivot device | |
| CN104134393A (en) | Manipulator movement principle demonstration teaching tool | |
| CN102233583A (en) | Rack connecting rod type two-degree-of-freedom thumb root joint device | |
| CN204087671U (en) | A kind of mechanically operated classroom teaching aid | |
| CN106224189A (en) | A kind of swing TRT of two directions' inputing Unidirectional output mechanism | |
| CN204102462U (en) | Cam profile curve demonstration teaching aid is drawn in reversal process | |
| CN104008692B (en) | A kind of gear teaching aid | |
| CN204029267U (en) | A kind of robot movement principle demonstration teaching aid | |
| CN2563665Y (en) | Cam combined driving and reciprocating driving mechanism for mechanical driving demonstration device | |
| CN105261288A (en) | A transmission four-bar mechanism teaching aid | |
| CN205080799U (en) | Mathematics sinusoidal function device of imparting knowledge to students | |
| CN107958619A (en) | Epicycloid track apparatus for demonstrating | |
| CN104036685B (en) | A kind of stereoscopic mechanism book | |
| CN205050465U (en) | Planet wheel drive cam reversal demonstration appearance | |
| CN214098925U (en) | Mechanism for demonstrating movement of moon around earth | |
| CN203752747U (en) | Sine curve plotting instrument | |
| CN105206170A (en) | Motion analysis platform for cam follower | |
| CN208819508U (en) | A kind of cam reversal process demonstrator | |
| CN205881202U (en) | Be used for english teaching aid | |
| CN205247768U (en) | Machinery link motion principle demonstration teaching aid | |
| CN211376010U (en) | Mechanical principle teaching demonstration model |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 |