CN104517518B - A kind of multifunctional gear drive teaching aid case - Google Patents
A kind of multifunctional gear drive teaching aid case Download PDFInfo
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- CN104517518B CN104517518B CN201510012643.2A CN201510012643A CN104517518B CN 104517518 B CN104517518 B CN 104517518B CN 201510012643 A CN201510012643 A CN 201510012643A CN 104517518 B CN104517518 B CN 104517518B
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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
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
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Abstract
Multifunctional gear drive teaching aid case, belongs to teaching aid technical field, relates to a kind of multifunctional gear drive teaching aid case.The present invention integrates various mechanism, and one multiplex, while facilitating teachers ' teaching and student to understand, has saved space and instruction cost.When the present invention uses as vehicle pointing to the south, vehicle pointing to the south is by casing, tumbler gear, bevel gear frame, pointer, two spur gears, two bevel gears, two wheel shafts, two wheels, two double-layer gears and two two-sided bevel gear compositions, when teaching aid box uses as planetary reduction gear, planetary reduction gear is by gear ring snap ring, wheel, gear ring, spur gear, pointer, several planetary gears, back-up ring and star wheel frame composition, when teaching aid box uses as freewheel clutch, described freewheel clutch is by wheel, back-up ring, outer ring, star wheel frame, pointer, several rollers, several springs and several push rods composition.
Description
Technical field
The invention belongs to teaching aid technical field, relate to a kind of multifunctional gear drive teaching aid case.
Background technology
At present, teacher explains the phases such as harmonic speed reducer, planetary reduction gear, freewheel clutch, differential mechanism and vehicle pointing to the south on classroom
During to complicated mechanism, if not using teaching aid, it is thorough that teacher is difficult to explanation, the operation principle of these mechanisms of student indigestion
And kinestate, although and use the teaching aid of function singleness can meet a kind of teaching demand to Liang Zhong mechanism, but due to its merit
Can be single, demonstration mechanism is limited, it is impossible to carries out the demonstration of various mechanism, when other mechanisms demonstrated by needs, also needs to carry additionally
Teaching aid demonstrated, while bringing inconvenience, also add teaching capital.
Summary of the invention
The problem existed for prior art, the present invention provides a kind of multifunctional gear drive teaching aid case, this multiple machine of teaching aid box collection
Structure is in one, and one multiplex, while facilitating teachers ' teaching and student to understand, has saved space and instruction cost.
To achieve these goals, the present invention adopts the following technical scheme that a kind of multifunctional gear drive teaching aid case, including casing,
Two wheels, tumbler gear, two double-layer gears, two spur gears, band teeth nut, two bevel gears, two two-sided cone teeth
Wheel, bevel gear frame, pointer, two wheel shafts, gear ring snap ring, several planetary gears, gear ring, back-up ring, star wheel frame, some
Individual roller, outer ring, flexbile gear, push rod and fixed mount, bevel gear frame is fixed on the left and right of jackshaft both sides by jackshaft and symmetry
Axle forms, and pointer has needle pivot, and the inner ring of gear ring snap ring has some sections of positioning tooths, and star wheel frame is by several wheel carrier fixed blocks
With two plates composition, two plates are connected by wheel carrier fixed block, on the top of casing, bottom be respectively arranged with upper and lower solid
Determining block, the inside and outside circle of gear ring is respectively provided with inside and outside tooth；
When teaching aid box uses as vehicle pointing to the south, described vehicle pointing to the south by casing, tumbler gear, bevel gear frame, pointer, two straight
Gear, two bevel gears, two wheel shafts, two wheels, two double-layer gears and two two-sided bevel gear compositions, two cone teeth
Wheel is symmetricly set on the left and right axle of bevel gear frame, and the top and bottom ends at the jackshaft of bevel gear frame is provided with two-sided bevel gear,
And two bevel gears are arranged between two two-sided bevel gears, each bevel gear is all meshed with two two-sided bevel gears, is arranged on
The two-sided bevel gear shaft on the jackshaft top of bevel gear frame is flexibly connected with upper fixed block, is arranged on the jackshaft bottom of bevel gear frame
Two-sided bevel gear shaft be flexibly connected with lower fixed block, each two-sided bevel gear is all meshed with a double-layer gear, a bilayer
Gear is meshed with tumbler gear, and tumbler gear and a spur gear are meshed, another double-layer gear and another spur gear phase
Engagement, double-layered tooth wheel shaft, commutating tooth wheel shaft be arranged on the sidewall of casing, each straight-tooth wheel shaft all by a wheel shaft with set
Putting outside casing wheel to be connected, two wheels are separately positioned on the left and right side of casing；Pointer is arranged on casing
Top, needle pivot is connected through upper fixed block with the jackshaft of bevel gear frame；
When teaching aid box uses as planetary reduction gear, described planetary reduction gear by gear ring snap ring, wheel, gear ring, spur gear,
Pointer, several planetary gears, back-up ring and star wheel frame composition, gear ring snap ring is fixed on the inner ring of wheel, gear ring, spur gear
With several planetary gears are arranged between two plates of star wheel frame, spur gear is arranged on the center of star wheel frame, several planets
Gear shaft is fixed on a plate of star wheel frame, is positioned at the periphery of spur gear, and gear ring is arranged on planetary periphery, gear ring
External tooth be meshed with the positioning tooth of gear ring snap ring, the internal tooth of gear ring is meshed with planetary gear, and planetary gear is nibbled mutually with spur gear
Close, on wheel, the outside that is positioned at star wheel frame be fixed with back-up ring, pointer is arranged on the outside of wheel, and needle pivot passes star wheel frame
A plate be connected with straight-tooth wheel shaft；
When teaching aid box uses as freewheel clutch, described freewheel clutch by wheel, back-up ring, outer ring, star wheel frame, pointer,
Several rollers, several springs and several push rods composition, star wheel frame is arranged in wheel, and outer ring is fixed on the inner ring of wheel
Go up, be positioned at the outside of star wheel frame, and leave spacing between outer peripheral some sections of the plate of star wheel frame and medial wall, outer ring,
Being provided with groove on each wheel carrier fixed block of star wheel frame, the inner of push rod is arranged in groove, and the inner and groove at push rod
Being provided with spring between Di Bu, roller is arranged in the spacing of star wheel frame plate and outer ring, outside each roller is all with a push rod
End contacts, and back-up ring is fixed on wheel, is positioned at the outside of outer ring, and pointer is arranged on the outside of wheel, needle pivot and star wheel frame
The center of a plate be connected；
When teaching aid box uses as harmonic speed reducer, described harmonic speed reducer is by gear ring snap ring, back-up ring, pointer, gear ring, wheel
Son, wave producer and flexbile gear composition, wave producer is made up of two wave producer wheels and support body, and two wave producer wheel symmetries set
Putting the left and right end at support body, wave producer is arranged in flexbile gear, and the outer ring of flexbile gear has external tooth, outside two wave producer wheels
The inner ring of flexbile gear propped up by circle, and flexbile gear is become oval from circle, and gear ring snap ring is fixed on the inner ring of wheel, the external tooth of gear ring with
The positioning tooth of gear ring snap ring is meshed, and the external tooth at major axis of flexspline end points is meshed with the internal tooth of gear ring, on wheel, is positioned at ripple
The outside of generator is fixed with back-up ring, and pointer is arranged on the outside of wheel, and needle pivot is connected with the support body center of wave producer；
When teaching aid box uses as differential mechanism, differential mechanism by two bevel gears, bevel gear frame, band teeth nut, casing, gear ring,
Two two-sided bevel gears, spur gear, pointer, two wheels and two wheel shafts compositions, two bevel gears are symmetricly set on bevel gear
On the left and right axle of frame, being provided with band teeth nut on the left and right axle of bevel gear frame, band teeth nut is positioned at the outside of bevel gear,
The outside of band teeth nut is provided with gear ring, the internal tooth of gear ring is meshed with the tooth of band teeth nut, at the jackshaft of bevel gear frame
Top and bottom ends is provided with two-sided bevel gear, and two-sided bevel gear shaft all jackshafts with bevel gear frame are flexibly connected, each bevel gear
All being meshed with two two-sided bevel gears, the two-sided bevel gear shaft on the jackshaft top being arranged on bevel gear frame is movable with upper fixed block
Connecting, the two-sided bevel gear shaft of the jackshaft bottom being arranged on bevel gear frame is flexibly connected with lower fixed block, and spur gear is arranged on case
On the side plate of body, spur gear is meshed with the external tooth of gear ring, and pointer is arranged on the center of the outside of casing, needle pivot and spur gear
Being connected, the upper and lower at casing is respectively arranged with a wheel, and wheel shaft is fixed on the center of wheel, and each wheel shaft is inner all
Fix with a two-sided bevel gear and be connected.
The side plate top of described casing is provided with Magnet, and case lid is fixed on the side plate top of casing by Magnet.
The number of the wheel carrier fixed block of described roller, spring, push rod and star wheel frame is three.
The wheel carrier fixed block of described star wheel frame, by being bonded and fixed on a plate, is provided with fixing pin on wheel carrier fixed block
And fixed magnet, fixing pin is through another plate of star wheel frame, and this plate is fixed on wheel carrier fixed block by fixed magnet
On.
The plate of described star wheel frame is provided with arrow mark.
The number of teeth of described flexbile gear is less than the number of teeth of gear ring internal tooth.
Beneficial effects of the present invention:
Teaching aid box of the present invention integrates multiple demonstration mechanism, and same part is reused in different institutions, is facilitating teacher
While teaching and student understand, space and instruction cost are saved.
Accompanying drawing explanation
Fig. 1 is to remove the structural representation when multifunctional gear drive teaching aid case of the present invention after case lid uses as vehicle pointing to the south；
Fig. 2 is the multifunctional gear drive teaching aid case of present invention structural representation when using as vehicle pointing to the south；
Fig. 3 is that the multifunctional gear drive teaching aid case of the present invention after the plate removing back-up ring and star wheel frame subtracts as planetary gear
Structural representation when speed device uses；
Fig. 4 is the multifunctional gear drive teaching aid case of present invention structural representation when using as planet wheel decelerator；
Fig. 5 is the multifunctional gear drive teaching aid case of present invention structural representation when using as freewheel clutch；
Fig. 6 is that the multifunctional gear drive teaching aid case of the present invention after the plate removing back-up ring and star wheel frame is as overdrive clutch
Structural representation when device uses；
Fig. 7 is the multifunctional gear drive teaching aid case of present invention structural representation when using as harmonic speed reducer；
Fig. 8 is to remove the structural representation when multifunctional gear drive teaching aid case of the present invention after back-up ring uses as harmonic speed reducer
Figure；
Fig. 9 is the multifunctional gear drive teaching aid case of present invention structural representation when using as differential mechanism；
Figure 10 is that the multifunctional gear drive teaching aid case of the present invention after removing the case lid of casing and side plate uses as differential mechanism
Time structural representation；
Figure 11 is the structural representation in the wheel front of the present invention；
Figure 12 is the structural representation at the wheel back side of the present invention；
Figure 13 is the structural representation of the bevel gear frame of the present invention；
Figure 14 is the front view of the bevel gear frame of the present invention；
In figure, 1--casing, 2--wheel, 3--tumbler gear, 4--screw, 5--double-layer gear, 6--spur gear, 7--band tooth
Nut, 8--bevel gear, 9--Magnet, the two-sided bevel gear of 10--, 11--wave producer, 12--bevel gear frame, 121--jackshaft,
The left axle of 122--, the right axle of 123--, 13--pointer, 14--fixed block, 15--needle pivot, 16--gear shaft, 17--handle, 18--
Wheel shaft, 19--nut, 20--case lid, 21 supports, 22--gear ring, 23--fixed magnet, 24--fixing pin, 25 is solid
Determine frame, 26--wheel carrier fixed block, 27--planetary gear, 28--gear ring snap ring, 29--star wheel frame, 30--arrow mark, 31--
Back-up ring, 32--roller, 33 springs, 34--push rod, 35--outer ring, 36--wave producer wheel, 37--support body, 38--flexbile gear, 39
Tire, 40 wheel hubs, 41 plates.
Detailed description of the invention
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 1～Figure 12, a kind of multifunctional gear drive teaching aid case, including 1, two wheels 2 of casing, tumbler gear 3,
5, two spur gears 6 of two double-layer gears, band teeth nut 7, two bevel gears 8, two two-sided bevel gears 10, bevel gear framves
12,13, two wheel shafts 18 of pointer, gear ring snap ring 28, several planetary gears 27, flexbile gear 38, gear ring 22, back-up ring 31,
Star wheel frame 29, several rollers 32, outer ring 35, push rod 34 and fixed mount 25, bevel gear frame 12 is by jackshaft 121 and right
Claiming the left and right axle composition being fixed on jackshaft 121 both sides, left axle 122, right axle 123 all are mutually perpendicular to set with jackshaft 121
Putting, pointer 13 has needle pivot 15, and the inner ring of gear ring snap ring 28 has some sections of positioning tooths, and star wheel frame 29 is taken turns by several
Frame fixed block 26 and two plates 41 form, and two plates 41 are connected by wheel carrier fixed block 26, on the top of casing 1,
Bottom is respectively arranged with upper and lower fixed block 14, and the inside and outside circle of gear ring 22 is respectively provided with inside and outside tooth；
When teaching aid box uses as vehicle pointing to the south, described vehicle pointing to the south by casing 1, tumbler gear 3, bevel gear frame 12, pointer 13,
8, two wheel shafts of 6, two bevel gears of two spur gears, 2, two double-layer gears 5 of 18, two wheels and two two-sided bevel gears
10 compositions, two bevel gears 8 are symmetricly set on the left and right axle of bevel gear frame 12, and bevel gear 8 can be carried out around place axle
Rotating, be provided with band teeth nut 7 on the left and right axle of bevel gear frame 12, band teeth nut 7 is positioned at the outside of bevel gear 8,
For spacing；Top and bottom ends at the jackshaft 121 of bevel gear frame 12 is provided with two-sided bevel gear 10, and two bevel gears 8
Being arranged between two two-sided bevel gears 10, two-sided bevel gear shaft is all movable with the jackshaft 121 of bevel gear frame 12 by bearing
Connecting, each bevel gear 8 is all meshed with two two-sided bevel gears 10, is arranged on jackshaft 121 top of bevel gear frame 12
Two-sided bevel gear shaft be flexibly connected with upper fixed block 14 by bearing, be arranged on jackshaft 121 bottom of bevel gear frame 12
Two-sided bevel gear shaft is flexibly connected with lower fixed block 14 by bearing, each two-sided bevel gear 10 all with double-layer gear 5 phase
Engagement, a double-layer gear 5 is meshed with tumbler gear 3, and tumbler gear 3 is meshed with a spur gear 6, another pair
Layer gear 5 be meshed with another spur gear 6, be arranged on the double-layered tooth wheel shaft 16 of homonymy, commutating tooth wheel shaft pass through screw 4 lock
Fastening on the stent 21, support 21 is arranged on the sidewall of casing 1, and each straight-tooth wheel shaft all by a wheel shaft 18 with
It is arranged on outside casing 1 wheel 2 to be connected, the wheel shaft 18 being positioned at outside wheel 2 is provided with nut 19, spiral shell
Female 19 for spacing；Two wheels 2 are separately positioned on the left and right side of casing 1；Pointer 13 is arranged on the top of casing 1,
Needle pivot 15 is connected through the upper fixed block 14 of case lid 20 with the jackshaft 121 of bevel gear frame 12；At described needle pivot 15
Bottom be provided with hexagonal indentations, the jackshaft 121 of described bevel gear frame 12 is provided with six prisms, six prisms are arranged on
In hexagonal indentations, make jackshaft 121 synchronous axial system of needle pivot 15 and bevel gear frame 12；
When teaching aid box uses as planetary reduction gear, described planetary reduction gear is by gear ring snap ring 28, wheel 2, gear ring 22, straight
Gear 6, pointer 13, several planetary gears 27, back-up ring 31 and star wheel frame 29 form, and gear ring snap ring 28 is fixed on wheel 2
On inner ring, spur gear 6 and several planetary gears 27 are arranged between two plates 41 of star wheel frame 29, and spur gear 6 is arranged
At the center of star wheel frame 29, several planetary gears 27 are circumferentially uniformly arranged on the periphery of spur gear 6, several planet teeth
Wheel shaft is fixed on a plate 41 of star wheel frame 29, and gear ring 22 is arranged on the periphery of planetary gear 27, the external tooth of gear ring 22
Being meshed with the positioning tooth of gear ring snap ring 28, the internal tooth of gear ring 22 is meshed with planetary gear 27, planetary gear 27 and straight-tooth
Wheel 6 is meshed, on wheel 2, the outside that is positioned at star wheel frame 29 be fixed with back-up ring 31, pointer 13 is arranged on outside wheel 2
Side, needle pivot 15 is connected through a plate 41 of star wheel frame 29 with straight-tooth wheel shaft；Described straight-tooth wheel shaft is provided with
Quadrilateral hole, the bottom of needle pivot 15 is quadrilateral prism, and quadrilateral prism is arranged in quadrilateral hole, make needle pivot 15 with
Straight-tooth wheel shaft synchronous axial system；
When teaching aid box uses as freewheel clutch, described freewheel clutch is by wheel 2, back-up ring 31, outer ring 35, star wheel frame
29, pointer 13, several rollers 32, several springs 33 and several push rods 34 form, and star wheel frame 29 is arranged on wheel
In 2, outer ring 35 is fixed on the inner ring of wheel 2, is positioned at the outside of star wheel frame 29, and outer ring 35 connects with several rollers 32
Touch, and produce frictional force, and leave spacing between outer peripheral some sections of the plate 41 of star wheel frame 29 and medial wall, outer ring 35,
Being provided with the groove of cylinder on each wheel carrier fixed block 26 of star wheel frame 29, the inner of push rod 34 is arranged in groove,
And it being provided with spring 33 between push rod 34 the inner and bottom portion of groove, roller 32 is arranged on star wheel frame 29 plate 41 and outer ring 35
Between spacing in, each roller 32 all outer ends with a push rod 34 contact, and due to the tension force of spring 33, make roller
32 is tangent with the medial wall of outer ring 35, and back-up ring 31 is fixed on wheel 2, is positioned at the outside of outer ring 35, and pointer 13 is arranged on
The outside of wheel 2, needle pivot 15 is connected with the center of a plate 41 of star wheel frame 29；Plate 41 at star wheel frame 29
Being provided centrally with quadrilateral hole, the quadrilateral prism of needle pivot 15 bottom is arranged in quadrilateral hole, makes needle pivot 15 and star-wheel
Frame 29 synchronous axial system；
When teaching aid box uses as harmonic speed reducer, described harmonic speed reducer by gear ring snap ring 28, back-up ring 31, pointer 13,
Gear ring 22, wheel 2, wave producer 11 and flexbile gear 38 form, and wave producer 11 is by two wave producer wheels 36 and support body 37
Composition, two wave producer wheels 36 are symmetricly set on the left and right end of support body 37, and the left and right end at support body 37 is provided with solid
Dead axle, the center taking turns 36 at two wave producers is provided with installing hole, and fixing axle is arranged in installing hole, on fixing axle,
The outside being positioned at wave producer wheel 36 is provided with stop screw, and wave producer 11 is arranged in flexbile gear 38, the outer ring of flexbile gear 38
Having external tooth, the inner ring of flexbile gear 38 is propped up in the outer ring of two wave producer wheels 36, and flexbile gear 38 is become oval from circle, gear ring
Snap ring 28 is fixed on the inner ring of wheel 2, and the external tooth of gear ring 22 is meshed with the positioning tooth of gear ring snap ring 28, and flexbile gear 38 is long
External tooth at axle head point is meshed with the internal tooth of gear ring 22, on wheel 2, the outside that is positioned at wave producer 11 be fixed with back-up ring
31, pointer 13 is arranged on the outside of wheel 2, and needle pivot 15 is connected, described with support body 37 center of wave producer 11
Support body 37 be provided centrally with quadrilateral hole, the quadrilateral prism of needle pivot 15 bottom is arranged in quadrilateral hole, makes needle pivot
15 with support body 37 synchronous axial system；
When teaching aid box uses as differential mechanism, differential mechanism by two bevel gears 8, bevel gear frame 12, band teeth nut 7, casing 1,
22, two two-sided bevel gears 10 of gear ring, spur gear 6,13, two wheels 2 of pointer and two wheel shafts 18 form, two cones
Gear 8 is symmetricly set on the left and right axle of bevel gear frame 12, and bevel gear 8 can rotate around its place axle, at cone tooth
Being provided with band teeth nut 7 on the left and right axle of wheel carrier 12, band teeth nut 7 is positioned at the outside of bevel gear 8, at band teeth nut 7
Outside be provided with gear ring 22, the internal tooth of gear ring 22 is meshed with the tooth of band teeth nut 7, at the jackshaft 121 of bevel gear frame 12
Top and bottom ends be provided with two-sided bevel gear 10, two-sided bevel gear shaft is all by the jackshaft 121 of bearing Yu bevel gear frame 12
Being flexibly connected, each bevel gear 8 is all meshed with two two-sided bevel gears 10, is arranged on the jackshaft 121 of bevel gear frame 12
The two-sided bevel gear shaft on top is flexibly connected with upper fixed block 14 by bearing, is arranged on jackshaft 121 end of bevel gear frame 12
The two-sided bevel gear shaft of end is flexibly connected with lower fixed block 14 by bearing, and spur gear 6 is arranged on casing 1 by fixed mount 25
Side plate on, spur gear 6 is meshed with the external tooth of gear ring 22, and pointer 13 is arranged on the outside of casing 1, and needle pivot 15 is with straight
The center of gear 6 is connected, at the quadrilateral hole that is provided centrally with of described spur gear 6, the quadrilateral prism of needle pivot 15 bottom
It is arranged in quadrilateral hole, makes needle pivot 15 and spur gear 6 synchronous axial system；Upper and lower at casing 1 is respectively arranged with one
Wheel 2, wheel shaft 18 is fixed on the center of wheel 2, and at the square hole that is provided centrally with of wheel 2, wheel shaft 18 has pros
Oblique crank Z is takeed on, and the square shaft shoulder of wheel shaft 18 is separately positioned in the square hole of wheel 2, makes Tong Bu with wheel 2 turn of wheel shaft 18
Dynamic, inner all the fixing with a two-sided bevel gear 10 of each wheel shaft 18 is connected, and makes two-sided bevel gear 10 can drive wheel 2
Rotate.
Be provided with Magnet 9 at the side plate top of described casing 1, case lid 20 is fixed on the side plate top of casing 1 by Magnet 9,
Upper fixed block 14 is arranged on case lid 20.
Described wheel 2 is made up of aluminum wheel hub 40 and rubber tyre 39.
The number of the wheel carrier fixed block 26 of described roller 32, spring 33, push rod 34 and star wheel frame 29 is three.
Few two of the number of teeth of gear ratio gear ring 22 internal tooth of described flexbile gear 38.
The wheel carrier fixed block 26 of described star wheel frame 29, by being bonded and fixed on a plate 41, sets on wheel carrier fixed block 26
Being equipped with fixing pin 24 and fixed magnet 23, fixing pin 24 is through another plate 41 of star wheel frame 29, and this plate 41
It is fixed on wheel carrier fixed block 26 by fixed magnet 23.
The plate 41 of described star wheel frame 29 is provided with arrow mark 30.
Described casing 1 is provided with handle 17.
The first use process of the present invention is described below in conjunction with the accompanying drawings:
As shown in Figure 1 and Figure 2, during demonstration vehicle pointing to the south work, pointer 13 being preset an assigned direction, vehicle pointing to the south is whether pressed
Straight line moving, or along slalom course walking (ensure wheel 2 and contact between ground without relatively sliding), wheel 2 is all by wheel
Axle 18 turn spur 6 rotates, and spur gear 6 drives the double-layer gear 5 engaged to rotate, and then drives two-sided bevel gear
10 rotate；Due to differential gear train principle, the pointer 13 being connected with bevel gear frame 12 always keeps presetting assigned direction.
As shown in Figure 3, Figure 4, during demonstration planet wheel decelerator work, hand-held wheel 2, to reach the effect of fixing wheel 2；
Rotating clockwise pointer 13, pointer 13 is rotated clockwise by needle pivot 15 turn spur 6, due to gear ring 22 and wheel 2
Being relatively-stationary, spur gear 6 drives the planetary gear 27 engaged to revolve round the sun clockwise around it, owing to planetary gear axle is fixed
On star wheel frame 29, therefore star wheel frame 29 rotates clockwise the most therewith, by observing the arrow mark 30 on star wheel frame 20,
Know its rotary state.
As shown in Figure 5, Figure 6, during demonstration freewheel clutch work, hand-held wheel 2, to reach the effect of fixing wheel 2；Suitable
Hour hands rotating pointer 13, spring 33 extends, and then push rod 34 also has minute movement, roller 32 along spring 33 prolonging direction
Driven outer ring 35 to rotate by wedging, now clutch is clutch state, and wheel 2 is followed the rotation of pointer 13 and turned clockwise
Dynamic；Rotating counterclockwise pointer 13, spring 33 compresses, and push rod 34 also shortens direction along spring 33 and moves, and roller 32 is with outer
Enclosing 35 medial walls to separate, outer ring 35 is the most motionless, and now clutch is for surmounting state, and wheel 2 does not turns with the rotation of pointer 13
Dynamic.
As shown in Figure 7, Figure 8, during demonstration harmonic speed reducer work, hand-held wheel 2, to reach the effect of fixing wheel 2；Suitable
Hour hands rotating pointer 13, the support body 37 driving wave producer 11 is rotated clockwise by pointer 13, and wave producer wheel 36 is around its institute
The fixing axle of support body 37 rotate counterclockwise, and the moment is tangent with the medial wall of flexbile gear 38, drives flexbile gear 38 to deform upon,
Owing to the number of teeth of gear ratio gear ring 22 internal tooth of flexbile gear 38 is few, and engage at the two flexbile gear 38 major axis after deformation, at short axle
Separating, there is the relative changing of the relative positions with fixing gear ring 22 in flexbile gear 38, when flexbile gear 38 exports power, it obtains relatively big retarding ratio.
As shown in Figure 9, Figure 10, during demonstration differential mechanism work, rotating pointer 13, pointer 13 rotarily drives spur gear 6 conduct
Active force inputs, and owing to the external tooth of spur gear 6 with gear ring 22 is meshed, then drives gear ring 22 to rotate, due to gear ring 22 and cone
Tooth rest 12 is relatively fixed, and then band dynamic bevel gear frame 12 rotates, due to be arranged on the bevel gear 8 at bevel gear frame 12 two ends with
Two two-sided bevel gears 10 are meshed, then two two-sided bevel gears 10 rotate；Owing to wheel 2 is by wheel shaft 18 and two-sided cone tooth
Wheel 10 is connected, and then two-sided bevel gear 10 rotates and driven wheel 2 to rotate；Due to the principle of differential gear train, smooth rotation
During pointer 13, or do not apply resistance in the case of (other cooperate place resistance differences identical at the resistance applied at two wheels 2
Not little, put aside), two wheels 2 rotate with identical speed, when one of them wheel 2 is applied resistance, are allowed to reduce
Speed rotates, then another wheel 2 will improve speed rotation, reach differential effect.
Claims (6)
1. a multifunctional gear drive teaching aid case, it is characterised in that include casing, two wheels, tumbler gear, two bilayers
Gear, two spur gears, band teeth nut, two bevel gears, two two-sided bevel gears, bevel gear frame, pointer, two wheel shafts,
Gear ring snap ring, several planetary gears, gear ring, back-up ring, star wheel frame, several rollers, outer ring, flexbile gear, push rod and fixing
Frame, bevel gear frame is made up of jackshaft and the symmetrical left and right axle being fixed on jackshaft both sides, and pointer has needle pivot, gear ring card
The inner ring of ring has some sections of positioning tooths, and star wheel frame is made up of several wheel carrier fixed blocks and two plates, and two plates are by wheel
Frame fixed block is connected, on the top of casing, bottom be respectively arranged with upper and lower fixed block, the inside and outside circle of gear ring be respectively provided with interior,
External tooth；
When teaching aid box uses as vehicle pointing to the south, described vehicle pointing to the south by casing, tumbler gear, bevel gear frame, pointer, two straight
Gear, two bevel gears, two wheel shafts, two wheels, two double-layer gears and two two-sided bevel gear compositions, two cone teeth
Wheel is symmetricly set on the left and right axle of bevel gear frame, and the top and bottom ends at the jackshaft of bevel gear frame is provided with two-sided bevel gear,
And two bevel gears are arranged between two two-sided bevel gears, each bevel gear is all meshed with two two-sided bevel gears, is arranged on
The two-sided bevel gear shaft on the jackshaft top of bevel gear frame is flexibly connected with upper fixed block, is arranged on the jackshaft bottom of bevel gear frame
Two-sided bevel gear shaft be flexibly connected with lower fixed block, each two-sided bevel gear is all meshed with a double-layer gear, a bilayer
Gear is meshed with tumbler gear, and tumbler gear and a spur gear are meshed, another double-layer gear and another spur gear phase
Engagement, double-layered tooth wheel shaft, commutating tooth wheel shaft be arranged on the sidewall of casing, each straight-tooth wheel shaft all by a wheel shaft with set
Putting outside casing wheel to be connected, two wheels are separately positioned on the left and right side of casing；Pointer is arranged on casing
Top, needle pivot is connected through upper fixed block with the jackshaft of bevel gear frame；
When teaching aid box uses as planetary reduction gear, described planetary reduction gear by gear ring snap ring, wheel, gear ring, spur gear,
Pointer, several planetary gears, back-up ring and star wheel frame composition, gear ring snap ring is fixed on the inner ring of wheel, gear ring, spur gear
With several planetary gears are arranged between two plates of star wheel frame, spur gear is arranged on the center of star wheel frame, several planets
Gear shaft is fixed on a plate of star wheel frame, is positioned at the periphery of spur gear, and gear ring is arranged on planetary periphery, gear ring
External tooth be meshed with the positioning tooth of gear ring snap ring, the internal tooth of gear ring is meshed with planetary gear, and planetary gear is nibbled mutually with spur gear
Close, on wheel, the outside that is positioned at star wheel frame be fixed with back-up ring, pointer is arranged on the outside of wheel, and needle pivot passes star wheel frame
A plate be connected with straight-tooth wheel shaft；
When teaching aid box uses as freewheel clutch, described freewheel clutch by wheel, back-up ring, outer ring, star wheel frame, pointer,
Several rollers, several springs and several push rods composition, star wheel frame is arranged in wheel, and outer ring is fixed on the inner ring of wheel
Go up, be positioned at the outside of star wheel frame, and leave spacing between outer peripheral some sections of the plate of star wheel frame and medial wall, outer ring,
Being provided with groove on each wheel carrier fixed block of star wheel frame, the inner of push rod is arranged in groove, and the inner and groove at push rod
Being provided with spring between Di Bu, roller is arranged in the spacing of star wheel frame plate and outer ring, outside each roller is all with a push rod
End contacts, and back-up ring is fixed on wheel, is positioned at the outside of outer ring, and pointer is arranged on the outside of wheel, needle pivot and star wheel frame
The center of a plate be connected；
When teaching aid box uses as harmonic speed reducer, described harmonic speed reducer is by gear ring snap ring, back-up ring, pointer, gear ring, wheel
Son, wave producer and flexbile gear composition, wave producer is made up of two wave producer wheels and support body, and two wave producer wheel symmetries set
Putting the left and right end at support body, wave producer is arranged in flexbile gear, and the outer ring of flexbile gear has external tooth, outside two wave producer wheels
The inner ring of flexbile gear propped up by circle, and flexbile gear is become oval from circle, and gear ring snap ring is fixed on the inner ring of wheel, the external tooth of gear ring with
The positioning tooth of gear ring snap ring is meshed, and the external tooth at major axis of flexspline end points is meshed with the internal tooth of gear ring, on wheel, is positioned at ripple
The outside of generator is fixed with back-up ring, and pointer is arranged on the outside of wheel, and needle pivot is connected with the support body center of wave producer；
When teaching aid box uses as differential mechanism, differential mechanism by two bevel gears, bevel gear frame, band teeth nut, casing, gear ring,
Two two-sided bevel gears, spur gear, pointer, two wheels and two wheel shafts compositions, two bevel gears are symmetricly set on bevel gear
On the left and right axle of frame, being provided with band teeth nut on the left and right axle of bevel gear frame, band teeth nut is positioned at the outside of bevel gear,
The outside of band teeth nut is provided with gear ring, the internal tooth of gear ring is meshed with the tooth of band teeth nut, at the jackshaft of bevel gear frame
Top and bottom ends is provided with two-sided bevel gear, and two-sided bevel gear shaft all jackshafts with bevel gear frame are flexibly connected, each bevel gear
All being meshed with two two-sided bevel gears, the two-sided bevel gear shaft on the jackshaft top being arranged on bevel gear frame is movable with upper fixed block
Connecting, the two-sided bevel gear shaft of the jackshaft bottom being arranged on bevel gear frame is flexibly connected with lower fixed block, and spur gear is arranged on case
On the side plate of body, spur gear is meshed with the external tooth of gear ring, and pointer is arranged on the center of the outside of casing, needle pivot and spur gear
Being connected, the upper and lower at casing is respectively arranged with a wheel, and wheel shaft is fixed on the center of wheel, and each wheel shaft is inner all
Fix with a two-sided bevel gear and be connected.
Multifunctional gear drive teaching aid case the most according to claim 1, it is characterised in that set at the side plate top of described casing
Being equipped with Magnet, case lid is fixed on the side plate top of casing by Magnet.
Multifunctional gear drive teaching aid case the most according to claim 1, it is characterised in that described roller, spring, push rod and
The number of the wheel carrier fixed block of star wheel frame is three.
Multifunctional gear drive teaching aid case the most according to claim 1, it is characterised in that the wheel carrier fixed block of described star wheel frame
By being bonded and fixed on a plate, being provided with fixing pin and fixed magnet on wheel carrier fixed block, fixing pin passes star
Another plate of wheel carrier, and this plate is fixed on wheel carrier fixed block by fixed magnet.
Multifunctional gear drive teaching aid case the most according to claim 1, it is characterised in that set on the plate of described star wheel frame
It is equipped with arrow mark.
Multifunctional gear drive teaching aid case the most according to claim 1, it is characterised in that the number of teeth of described flexbile gear is less than gear ring
The number of teeth of internal tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510012643.2A CN104517518B (en) | 2015-01-08 | 2015-01-08 | A kind of multifunctional gear drive teaching aid case |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510012643.2A CN104517518B (en) | 2015-01-08 | 2015-01-08 | A kind of multifunctional gear drive teaching aid case |
Publications (2)
| Publication Number | Publication Date |
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| CN104517518A CN104517518A (en) | 2015-04-15 |
| CN104517518B true CN104517518B (en) | 2017-01-04 |
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| CN201510012643.2A Expired - Fee Related CN104517518B (en) | 2015-01-08 | 2015-01-08 | A kind of multifunctional gear drive teaching aid case |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108538158B (en) * | 2018-07-11 | 2024-07-23 | 南京锋之腾工业科技有限公司 | Magnetic force teaching demonstration device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101537259A (en) * | 2008-03-19 | 2009-09-23 | 詹承镇 | Guide vehicle |
| CN101650184A (en) * | 2008-08-15 | 2010-02-17 | 叶大卫 | Southward pointing cart |
| CN103247218B (en) * | 2013-05-09 | 2015-08-12 | 廊坊职业技术学院 | Combination quick-changing type gear train teaching aid |
| CN104008697B (en) * | 2014-05-22 | 2016-03-23 | 广西职业技术学院 | A kind of many topworkies teaching platform |
| CN204406874U (en) * | 2015-01-08 | 2015-06-17 | 东北大学 | A kind of multifunctional gear drive teaching aid case |
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