CN205487089U - Rack and pinion mechanism demonstration teaching aid - Google Patents
Rack and pinion mechanism demonstration teaching aid Download PDFInfo
- Publication number
- CN205487089U CN205487089U CN201620039793.2U CN201620039793U CN205487089U CN 205487089 U CN205487089 U CN 205487089U CN 201620039793 U CN201620039793 U CN 201620039793U CN 205487089 U CN205487089 U CN 205487089U
- Authority
- CN
- China
- Prior art keywords
- riser
- rack
- teaching aid
- guide rod
- runner
- 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 discloses a rack and pinion mechanism demonstration teaching aid, it includes the riser of bottom plate and perpendicular to bottom plate, the top of riser is equipped with the spout, and is fixed with first round pin axle on the riser, first round pin axle is articulated with the lower extreme of guide arm, and that second round pin axle is passed through to the upper end of guide arm is articulated with the one end of connecting rod, and the other end of connecting rod passes through third round pin axle and the slider articulates, the slider is connected with the rack, rack upper portion and gear engagement, the lower part with it is vice that the spout forms the removal, the center of riser is equipped with the pivot, the runner is equipped with in the pivot, off -centre is equipped with the pin on the runner, it has the guide slot to open on the guide arm, the pin can the guide slot internal slipping of guide arm. This teaching aid can be used for teacing the theory of operation of swinging guide rod mechanism and rack and pinion mechanism, can also be used to drawing kinematic diagram of mechanism and calculates the degree of freedom.
Description
Technical field
This utility model relates to a kind of pinion and rack demonstration teaching aid.
Background technology
For the ease of student's understanding to conventional machinery mechanism, usually coordinate teaching aid teaching demonstration.Current existing teaching aid is only
Can demonstrate single mechanical mechanism, and can not embody the actual application of mechanism, this single teaching aid loses contact with reality application, teaching efficiency
Bad.
Utility model content
This utility model purpose is the defect existed for prior art, it is provided that a kind of pinion and rack demonstration teaching aid.
This utility model for achieving the above object, adopts the following technical scheme that a kind of pinion and rack demonstration teaching aid, bag
Including base plate and be perpendicular to the riser of base plate, the top of described riser is provided with on chute, and riser and is fixed with the first bearing pin, and described the
One bearing pin is hinged with the lower end of guide rod, and the upper end of guide rod is hinged with one end of connecting rod by the second bearing pin, the other end of connecting rod
Hinged with slide block by the 3rd bearing pin, described slide block is connected with tooth bar, and described tooth bar top is engaged with gear, bottom and described cunning
Groove forms moving sets；The center of described riser is provided with rotating shaft, equipped with runner in described rotating shaft, described runner is eccentrically provided with pin
Nail；Having guide groove on described guide rod, described pin can sliding in the guide groove of described guide rod.
The beneficial effects of the utility model are, oscillating guidebar mechanism and pinion and rack are organically combined, from
And achieve the forward and reverse rotation of periodicity that the continuous rotary motion of runner is changed into gear, meet the special of some occasion
Need.This teaching aid can be used to lecture the operation principle of oscillating guidebar mechanism and pinion and rack, it is also possible to for rendering enginer
Structure kinematic sketch and calculating degree of freedom.
Accompanying drawing explanation
Figure is schematic diagram of the present utility model.
Detailed description of the invention
As it can be seen, a kind of pinion and rack demonstration teaching aid, including base plate 1 and the riser 2 being perpendicular to base plate 1, described
The top of riser 2 is provided with on chute 14, and riser 2 and is fixed with the first bearing pin 3, and described first bearing pin 3 cuts with scissors with the lower end of guide rod 4
Connecing, and the upper end of guide rod 4 is hinged with one end of connecting rod 9 by the second bearing pin 8, the other end of described connecting rod 9 passes through the 3rd bearing pin
11 is hinged with slide block 12, and described slide block 12 is connected with tooth bar 10, and described tooth bar 10 top is engaged with gear 13, bottom and chute 14
Form moving sets；The center of described riser 2 is provided with rotating shaft 6, equipped with runner 7 in described rotating shaft 6, described runner 7 is eccentrically provided with
Pin 5；Having guide groove on described guide rod 4, described pin 5 can sliding in the guide groove of described guide rod 4.Runner 7, pin 5, guide rod
4 constitute oscillating guidebar mechanism, and gear 13, tooth bar 10 and chute 14 constitute pinion and rack.
Rotated by electronic or manual actuation runner 7, pin 5 sliding in guide rod 4 guide groove on it, promote guide rod 4 to do
Oscillating motion, guide rod 4 is hinged with slide block 12 further through connecting rod 9, promotes slide block 12 to do and comes and goes linear motion, and slide block 12 drives again tooth
Bar 10 does and comes and goes linear motion, thus the forward and reverse rotation of periodicity realizing gear 13.
Claims (1)
1. a pinion and rack demonstration teaching aid, including base plate (1) and the riser (2) that is perpendicular to base plate (1), its feature exists
In: the top of described riser (2) is provided with on chute (14), and riser (2) and is fixed with the first bearing pin (3), described first bearing pin (3)
Hinged with the lower end of guide rod (4), and the upper end of guide rod (4) is hinged with one end of connecting rod (9) by the second bearing pin (8), connecting rod (9)
The other end by the 3rd bearing pin (11) hinged with slide block (12), described slide block (12) is connected with tooth bar (10), described tooth bar
(10) top is engaged with gear (13), and bottom forms moving sets with described chute (14)；The center of described riser (2) is provided with rotating shaft
(6), equipped with runner (7) in described rotating shaft (6), described runner (7) is eccentrically provided with pin (5)；Have on described guide rod (4) and lead
Groove, described pin (5) can sliding in the guide groove of described guide rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620039793.2U CN205487089U (en) | 2016-01-10 | 2016-01-10 | Rack and pinion mechanism demonstration teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620039793.2U CN205487089U (en) | 2016-01-10 | 2016-01-10 | Rack and pinion mechanism demonstration teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205487089U true CN205487089U (en) | 2016-08-17 |
Family
ID=56668142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620039793.2U Expired - Fee Related CN205487089U (en) | 2016-01-10 | 2016-01-10 | Rack and pinion mechanism demonstration teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205487089U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107744453A (en) * | 2017-12-04 | 2018-03-02 | 李镜萍 | One kind is exclusively used in medical patient and massages pin equipment |
| CN110523134A (en) * | 2019-09-24 | 2019-12-03 | 大通丰收农牧科技有限公司 | A kind of edible oil filter plant and its filter method |
| CN112247640A (en) * | 2020-09-21 | 2021-01-22 | 罗刚 | Equipment surface layer precision cutting device for oil cylinder machining |
-
2016
- 2016-01-10 CN CN201620039793.2U patent/CN205487089U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107744453A (en) * | 2017-12-04 | 2018-03-02 | 李镜萍 | One kind is exclusively used in medical patient and massages pin equipment |
| CN110523134A (en) * | 2019-09-24 | 2019-12-03 | 大通丰收农牧科技有限公司 | A kind of edible oil filter plant and its filter method |
| CN112247640A (en) * | 2020-09-21 | 2021-01-22 | 罗刚 | Equipment surface layer precision cutting device for oil cylinder machining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20170110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |