CN208834623U - A kind of planetary gear mechanism variable motion demonstration teaching aid - Google Patents
A kind of planetary gear mechanism variable motion demonstration teaching aid Download PDFInfo
- Publication number
- CN208834623U CN208834623U CN201721791347.8U CN201721791347U CN208834623U CN 208834623 U CN208834623 U CN 208834623U CN 201721791347 U CN201721791347 U CN 201721791347U CN 208834623 U CN208834623 U CN 208834623U
- Authority
- CN
- China
- Prior art keywords
- bracket
- gear
- planetary gear
- planet carrier
- dial disc
- 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
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Abstract
The utility model provides a kind of planetary gear mechanism variable motion demonstration teaching aid, including bracket, sun gear, planetary gear, planet carrier and gear ring, the sun gear is fixed on bracket by bearing, the planetary gear be connected on planet carrier and with sun gear external toothing, the planetary gear can be around connecting shaft rotation, the planet carrier is round and connects at least one planetary gear, the gear ring and planetary gear internal messing, dial disc is provided between the bracket and sun gear, dial disc along the circumferential direction indicates scale value and diameter is greater than gear ring outer diameter；Rotating handle, pointer and fixation hole are respectively arranged on the gear ring, planet carrier and sun gear, corresponding on the bracket provided circumferentially about locating for fixation hole has location hole.The utility model is easy to use, can intuitively show that the working principle and transport characteristics of planetary gear mechanism can quickly judge the direction of rotation of main driven element and calculate transmission ratio especially when fixed different elements carry out gear.
Description
Technical field
The utility model relates to a kind of machinery field teaching aids, demonstrate more particularly, to a kind of planetary gear mechanism variable motion
Teaching aid.
Background technique
On some mechanical speciality classes, such as in the courses such as " theory of mechanics ", " automotive transmission ", need to learn planet
The calculating etc. of different drive ratios under the structure composition of gear mechanism, transport characteristics and Variable Velocity Condition.In order to make student more straight
It sees ground to understand, teacher would generally see planetary gear mechanism material object display to student, this helps somewhat to student's reason
The structure of planetary gear mechanism is solved, but for gear ratio calculation of the gear under different Variable Velocity Conditions and direction of rotation, increase and decrease
Speed judgement, student study get up it is relatively difficult, be not easy to grasp.Such as application No. is 201520301075.3, patent name is
The utility model patent of " a kind of planetary gear mechanism motion demonstrating teaching aid ", although can intuitively reflect gear drive direction,
Be to have following deficiency: 1, gear ring is fixed, and can only demonstrate two kinds of kinds of drive: actively, planet carrier output is driven or row for sun gear
Actively, sun gear output is driven carrier；2, structure is complicated, needs motor driven, limits place to operate schools to a certain extent.
Utility model content
In view of the above-mentioned problems, the utility model is intended to provide a kind of planetary gear mechanism variable motion demonstration teaching aid, it can be straight
The working principle for showing planetary gear mechanism is seen, judges the direction of rotation of main driven element, and can calculate in different members
The transmission ratio of part rigid condition lower planetary gear mechanism is highly convenient for teacher's demonstration and student's study, and in addition structure is simple, operation
It is convenient, it can be manufactured by 3D printing, it is easy to maintenance.
The technical solution of the utility model is a kind of planetary gear mechanism variable motion demonstration teaching aid, including bracket, the sun
Wheel, planetary gear, planet carrier and gear ring, the sun gear are fixed on bracket by bearing, and the planetary gear connection is expert at
In carrier and with sun gear external toothing, the planetary gear can around connecting shaft rotation, the planet carrier be round and connection at least
One planetary gear, the gear ring and planetary gear internal messing, are provided with dial disc, scale between the bracket and sun gear
Disk along the circumferential direction indicates scale value and diameter is greater than gear ring outer diameter；It is respectively set on the gear ring, planet carrier and sun gear
There are rotating handle, pointer and fixation hole, corresponding on the bracket provided circumferentially about locating for fixation hole has location hole.
Preferably, the bracket, dial disc, gear ring, planet carrier and sun gear are placed vertically；On the dial disc
It is provided with fixation hole, the location hole of corresponding fixation hole is provided on the bracket, the dial disc is fixed on bracket, described
The available fixed pin of gear ring, planet carrier and sun gear is fixed on the location hole on bracket after the fixation hole on dial disc
It is interior.
Preferably, the bracket, dial disc, gear ring, planet carrier and sun gear are horizontal positioned, on the dial disc
It is provided with fixation hole, the location hole of corresponding fixation hole is provided on the bracket, the dial disc is fixed on bracket, described
Gear ring, planet carrier and sun gear are arranged on dial disc and fix after can passing through the fixation hole on dial disc with fixed pin
Positioning hole on bracket.
Preferably, the planetary gear quantity is 2-4, along the circumferential direction uniformly arrangement.
Preferably, location hole is threaded hole on the bracket.
The utility model is easy to use, can intuitively show the working principle and transport characteristics of planetary gear mechanism, especially
It can quickly judge the direction of rotation of main driven element and calculate transmission ratio when fixed different elements carry out gear, non-
It is often demonstrated convenient for teacher, student is also facilitated to learn and grasp correlated knowledge point.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model vertical structure；
Fig. 2 is the rearview of Fig. 1；
Fig. 3 is to remove the structural schematic diagram after dial disc in Fig. 1；
Fig. 4 is the rearview of Fig. 3；
Fig. 5 is the structural schematic diagram of the utility model horizontal type structure；
Fig. 6 is the rearview of Fig. 5；
Fig. 7 is to remove the structural schematic diagram after dial disc in Fig. 5；
Fig. 8 is the rearview of Fig. 7；
Wherein: 1-bracket；2-sun gears；3-planetary gears；4-planet carriers；5-gear rings；6-bearings；7-scales
Disk；8-rotating handles；9-pointers；10-fixation holes；11-location holes.
Specific embodiment
With reference to the accompanying drawing, the utility model is described in further detail.
As shown in Figures 1 to 8, the utility model discloses a kind of planetary gear mechanism variable motion demonstration teaching aids, including
Bracket 1, sun gear 2, planetary gear 3, planet carrier 4 and gear ring 5, the sun gear 2 is fixed on bracket 1 by bearing 6, described
Planetary gear 3 be connected on planet carrier 4 and with 2 external toothing of sun gear, the planetary gear 3 can be around connecting shaft rotation, the row
Carrier 4 is round and connects at least one planetary gear 3, the gear ring 5 and 3 internal messing of planetary gear, the bracket 1 and the sun
Dial disc 7 is provided between wheel 2, dial disc 7 along the circumferential direction indicates scale value and diameter is greater than 5 outer diameter of gear ring；It is described
It is respectively arranged with rotating handle 8, pointer 9 and fixation hole 10 on gear ring 5, planet carrier 4 and sun gear 2, is corresponded on the bracket 1 solid
Determine provided circumferentially about locating for hole 10 have location hole 11.
Preferably, the bracket 1, dial disc 7, gear ring 5, planet carrier 4 and sun gear 2 are vertical places；The scale
It is provided with fixation hole 10 on disk 7, the location hole 11 of corresponding fixation hole 10 is provided on the bracket 1, the dial disc 7 is solid
It is scheduled on bracket 1, after the available fixed pin of the gear ring 5, planet carrier 4 and sun gear 2 passes through the fixation hole 10 on dial disc 7
It is fixed in the location hole 11 on bracket 1, location hole 11 is threaded hole on the bracket 1, and diameter is slightly less than fixation hole 10, institute
Stating fixed pin is that cylindric and bottom has screw thread, and fixed pin is threadedly coupled with location hole 11.When being not fixed planetary gear mechanism
When, fixed pin can screw in location hole from cradle back, be fixed on bracket, prevent from losing.
Preferably, the bracket 1, dial disc 7, gear ring 5, planet carrier 4 and sun gear 2 are horizontal positioned, the scale
It is provided with fixation hole 10 on disk 7, the location hole 11 of corresponding fixation hole 10 is provided on the bracket 1, the dial disc 7 is solid
It is scheduled on bracket 1, the gear ring 5, planet carrier 4 and sun gear 2 are arranged on dial disc 7 and can pass through scale with fixed pin
It is fixed in the location hole 11 on bracket 1 after fixation hole 10 on disk 7.
Preferably, the quantity of the planetary gear 3 is 2-4, along the circumferential direction uniformly arrangement.
It when demonstrating variable motion, is inputted using sun crop rotation as active member, gear ring is as output, to planetary gear
Planet carrier be fixed.Concrete operation method are as follows: fixed pin is screwed in into the corresponding location hole of bracket from planet carrier fixed hole position,
By the rotating handle rotation on sun gear, and the angle of dial record solar wheel and gear ring rotation is compareed, active member is too
Sun wheel and the ratio between angle of actuated element gear ring rotation are transmission ratio, at the same can intuitive judgment transmission direction and speed change.
If for sun gear as output element, operating method is similar using gear ring as active member, do not repeat.
It when fixed gear ring or sun gear, is inputted with remaining any element, remaining element output, operating method and upper phase
Seemingly, therefore not to repeat here.
When being not fixed any element, with the input of any two element synchronous rotary, another element realizes equispeed output same
It is demonstrated to constant speed drive.Operating method is similar to above, does not repeat.
It when being not fixed any element, is rotated and is inputted with any one element, remaining element is by unpowered output.
The instructional function that may be implemented such as following table.
The above is only the better embodiment of the utility model, not makees limit in any form to utility model
System, all technical principles according to the utility model any simple modification, equivalent variations or modification made to the above embodiment,
It is still within the scope of the technical solutions of the present invention.
Claims (5)
1. a kind of planetary gear mechanism variable motion demonstration teaching aid, including bracket (1), sun gear (2), planetary gear (3), planet
Frame (4) and gear ring (5), it is characterised in that: the sun gear (2) is fixed on bracket (1) by bearing (6), the planet tooth
Wheel (3) be connected on planet carrier (4) and with sun gear (2) external toothing, the planetary gear (3) can be described around connecting shaft rotation
Planet carrier (4) is round and connects at least one planetary gear (3), the gear ring (5) and planetary gear (3) internal messing, described
It is provided between bracket (1) and sun gear (2) dial disc (7), dial disc (7) along the circumferential direction indicates scale value and diameter
Greater than gear ring (5) outer diameter；Rotating handle (8), pointer are respectively arranged on the gear ring (5), planet carrier (4) and sun gear (2)
(9) and fixation hole (10), corresponding on the bracket (1) provided circumferentially about locating for fixation hole (10) has location hole (11).
2. a kind of planetary gear mechanism variable motion demonstration teaching aid according to claim 1, it is characterised in that: the bracket
(1), dial disc (7), gear ring (5), planet carrier (4) and sun gear (2) are vertical places；It is arranged on the dial disc (7)
Have fixation hole (10), the location hole (11) of corresponding fixation hole (10) is provided on the bracket (1), the dial disc (7) is solid
It is scheduled on bracket (1), the available fixed pin of the gear ring (5), planet carrier (4) and sun gear (2) passes through on dial disc (7)
It is fixed on after fixation hole (10) location hole (11) on bracket (1) Nei.
3. a kind of planetary gear mechanism variable motion demonstration teaching aid according to claim 1, it is characterised in that: the bracket
(1), dial disc (7), gear ring (5), planet carrier (4) and sun gear (2) are horizontal positioned, are arranged on the dial disc (7)
Have fixation hole (10), the location hole (11) of corresponding fixation hole (10) is provided on the bracket (1), the dial disc (7) is solid
It is scheduled on bracket (1), the gear ring (5), planet carrier (4) and sun gear (2) are arranged on dial disc (7) and can use fixation
Pin is fixed on the location hole (11) on bracket (1) Nei after the fixation hole (10) on dial disc (7).
4. a kind of planetary gear mechanism variable motion demonstration teaching aid according to claim 1, it is characterised in that: the planet
The quantity of gear (3) is 2-4, along the circumferential direction uniformly arrangement.
5. a kind of planetary gear mechanism variable motion demonstration teaching aid according to claim 2, it is characterised in that: the bracket
(1) location hole (11) is threaded hole on, and diameter is slightly less than fixation hole (10), and the fixed pin is that cylindric and bottom has spiral shell
Line, fixed pin are threadedly coupled with location hole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721791347.8U CN208834623U (en) | 2017-12-20 | 2017-12-20 | A kind of planetary gear mechanism variable motion demonstration teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721791347.8U CN208834623U (en) | 2017-12-20 | 2017-12-20 | A kind of planetary gear mechanism variable motion demonstration teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208834623U true CN208834623U (en) | 2019-05-07 |
Family
ID=66303299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721791347.8U Expired - Fee Related CN208834623U (en) | 2017-12-20 | 2017-12-20 | A kind of planetary gear mechanism variable motion demonstration teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208834623U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110654136A (en) * | 2019-09-27 | 2020-01-07 | 唐桂长 | Legal document classification management device |
-
2017
- 2017-12-20 CN CN201721791347.8U patent/CN208834623U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110654136A (en) * | 2019-09-27 | 2020-01-07 | 唐桂长 | Legal document classification management device |
| CN110654136B (en) * | 2019-09-27 | 2021-02-09 | 林文福 | Legal document classification management device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190507 Termination date: 20191220 |