CN206349072U - A kind of polygon involute draws teaching aid - Google Patents
A kind of polygon involute draws teaching aid Download PDFInfo
- Publication number
- CN206349072U CN206349072U CN201621206833.4U CN201621206833U CN206349072U CN 206349072 U CN206349072 U CN 206349072U CN 201621206833 U CN201621206833 U CN 201621206833U CN 206349072 U CN206349072 U CN 206349072U
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- CN
- China
- Prior art keywords
- base disc
- blade
- chi
- involute
- big
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Abstract
Teaching aid is drawn the utility model discloses a kind of polygon involute, main shaft sequentially passes through small base disc, middle base disc, the center of big base disc, big base disc, chi is drawn to be bolted on bottom plate, drafting pen is fixed with the one end for drawing chi, handwheel is provided with big base disc, handwheel is connected by hand wheel pole with big base disc, the blade stock and blade quarter butt of mutual cooperation are provided with handwheel, big base disc is connected by connecting fastening assembly with middle base disc, geared linkage mechanism is provided between middle base disc and small base disc, horizontal rotating bar is fixed with main shaft, rotating bar is connected by bearing with the spring being arranged in sleeve, barrel end is connected with sliding block by slide block connecting rod, slide block connecting rod is vertically arranged with drawing chi, sliding block is arranged in the groove for drawing chi, the utility model is simple in construction, the stroke of involute can intuitively be shown, beneficial to the exploitation and expansion of student thought, instructional blocks of time can be shortened, improve the quality of teaching.
Description
Technical field
The utility model is related to involute and draws teaching aid technical field, and specifically a kind of polygon involute draws religion
Tool.
Background technology
The tooth form of involute gear is made up of circle involute, and the generation of involute is then one of mechanical principle course
Priority and difficulty, and regular polygon involute is used as the design original that the meshing profile of many scroll wraps is pumping equipment vortex pump
Reason.Teacher typically around bottle cap similar mode can demonstrate involute when explaining principle of forming involute related content with single line
Forming process, so demonstration is not directly perceived enough, operates and not enough facilitates, and can only simulate single circle involute.As for electricity
The formation of brain modeling involute, then can not give student's intuitively visual presence, and the principle for understanding involute for student is helped
Less.
Therefore, to overcome the shortcomings of that above-mentioned technology designs a row simple in construction, can intuitively showing involute
Journey process, a kind of polygon involute that can shorten instructional blocks of time, improve the quality of teaching draw teaching aid, and exactly inventor to be solved
Certainly the problem of.
Utility model content
In view of the shortcomings of the prior art, the purpose of this utility model is to provide a kind of polygon involute drafting teaching aid, its
It is simple in construction, the stroke of involute can be intuitively shown, beneficial to the exploitation and expansion of student thought, when can shorten teaching
Between, improve the quality of teaching.
The utility model solves the technical scheme that its technical problem used：A kind of polygon involute draws teaching aid,
It includes geared linkage mechanism, main shaft, many blade mechanisms, base disc group, and many blade mechanisms include handwheel, hand wheel pole, rotation
Piece stock, blade quarter butt, connection fastening assembly, the base disc group include small base disc, the middle base set gradually from top to bottom
Disk, big base disc, and the main shaft sequentially passes through small base disc, middle base disc, the center of big base disc, the big basic circle
Disk, drafting chi are bolted on bottom plate, are fixed with drafting pen, the big base disc and are set on described one end for drawing chi
Handwheel is equipped with, the handwheel is connected by hand wheel pole with big base disc, and blade stock and blade quarter butt are provided with the handwheel,
The blade stock is engaged with blade quarter butt, is additionally provided with and multiple is engaged by pad, nut, bolt on the big base disc
Into connection fastening assembly, the big base disc is connected by connecting fastening assembly with middle base disc, the middle base disc
Be provided with geared linkage mechanism between small base disc, the geared linkage mechanism include bearing, sleeve, slide block connecting rod, sliding block,
Horizontal rotating bar is fixed with spring, two pitch wheels, rotating bars, the main shaft, the rotating bar passes through axle
Hold and be arranged on the spring connection in sleeve, the barrel end is connected with sliding block by slide block connecting rod, the slide block connecting rod with
Draw chi to be vertically arranged, the sliding block is arranged in the groove for drawing chi and along groove can moved back and forth, many rotary tableting machines
Structure collectively forms polygon involute drawing apparatus, the drafting chi and geared linkage mechanism with drawing chi, geared linkage mechanism
Connect and tightly fitted with base disc side and constitute circle involute drawing apparatus.
Further, the gear includes the gear a being set on main shaft and the gear b being fixed on middle base disc.
Further, many blade mechanisms are coordinated using four blade stocks and four blade quarter butts.
Further, it is provided with circlip for shaft between the bearing and sleeve.
Further, the main shaft is provided with inner ear locked spacer with rotating bar junction.
The beneficial effect of utility model is：
1st, the utility model is simple in construction, the stroke of involute can be intuitively shown, beneficial to the exploitation of student thought
With expansion, instructional blocks of time can be shortened, understanding of the student to course is facilitated, learning interest is improved, improve the quality of teaching.
Brief description of the drawings
Fig. 1 is that the utility model draws circle involute agent structure schematic diagram.
Fig. 2 is the structural representation of many blade mechanisms of the utility model.
Description of reference numerals：The big base discs of 1-；The small base discs of 2-；3- connection fastening assemblies；4- rotating bars；5- bearings；6-
Circlip for shaft；7- draws pen；8- draws chi；9- sleeves；10- slide block connecting rods；11- sliding blocks；12- springs；13- main shafts；14-
Gear；15- hand wheel poles；16- blade stocks；17- handwheels；18- blade quarter butts.
Embodiment
With reference to specific embodiment, the utility model is expanded on further, it should be appreciated that these embodiments are merely to illustrate this
Utility model rather than limitation scope of the present utility model.In addition, it is to be understood that reading the content of the utility model instruction
Afterwards, those skilled in the art can make various changes or modifications to the utility model, and these equivalent form of values also fall within application
Appended claims limited range.
It is the utility model structural representation referring to Fig. 1, a kind of polygon involute of the structure draws teaching aid, including gear
14 linkages, main shaft 13, many blade mechanisms, base disc group, it is long that many blade mechanisms include handwheel 17, the bar 15 of handwheel 17, blade
Bar 16, blade quarter butt 18, connection fastening assembly 3, base disc group include small base disc 2, the middle basic circle set gradually from top to bottom
Disk, big base disc 1, and main shaft 13 sequentially passes through small base disc 2, middle base disc, the center of big base disc 1, big base disc 1, are painted
Chi 8 processed is bolted on bottom plate, is fixed with the one end for drawing chi 8 on drafting pen 7, big base disc 1 and is provided with handwheel
17, handwheel 17 is connected by the bar 15 of handwheel 17 with big base disc 1, and blade stock 16 and blade quarter butt 18 are provided with handwheel 17,
Blade stock 16 is engaged with blade quarter butt 18, be additionally provided with big base disc 1 it is multiple by pad, nut, bolt match synthesize
Connection fastening assembly 3, big base disc 1 is connected by connecting fastening assembly 3 with middle base disc, middle base disc and small basic circle
The linkage of gear 14 is provided between disk 2, the linkage of gear 14 includes bearing 5, sleeve 9, the connecting rod 10 of sliding block 11, sliding block
11st, spring 12, two pitch wheels 14, rotating bars 4, gear 14 include gear a and the fixation being set on main shaft 13
Horizontal rotating bar 4 is fixed with gear b on middle base disc, main shaft 13, rotating bar 4 is by bearing 5 and is arranged on sleeve 9
Interior spring 12 is connected, and the end of sleeve 9 is connected with sliding block 11 by the connecting rod 10 of sliding block 11, and the connecting rod 10 of sliding block 11 hangs down with drawing chi 8
Straight to set, sliding block 11 is arranged in the groove for drawing chi 8 and can moved back and forth along groove, and many blade mechanisms are with drawing chi 8, tooth
Take turns 14 linkages and collectively form polygon involute drawing apparatus, draw chi 8 and be connected with the linkage of gear 14 and and basic circle
The tightly laminating of disk side constitutes circle involute drawing apparatus.Many blade mechanisms are short using four blade stocks 16 and four blades
Bar 18 is coordinated, and circlip for shaft 6 is provided between bearing 5 and sleeve 9, and main shaft 13 is provided with the junction of rotating bar 4
Inner ear locked spacer.
Base disk is placed on bottom plate, and bottom plate can prevent teaching aid from there is bounce when drawing involute, can protect well
Continuity is held, is secured together with bolt, and bottom plate is fixed on the linkage of gear 14 above base disk, is gradually opened
Line drafting chi 8, which is connected with the linkage of gear 14 and tightly fitted with base disc side, constitutes circle involute drawing apparatus, leads to
Crossing the linkage of gear 14 drives involute to draw chi 8 and the rolling of base disc side；Four blade mechanisms are fixed on the connecting rod of gear 14
Between mechanism and base disc, draw chi 8, the linkage of gear 14 with involute and constitute quadrangle involute drawing apparatus, pass through
While four blade mechanisms screw out four blades, the connecting rod of gear 14 blade that accordingly elongation makes drafting chi 8 be close to screw out is rolled, and four
Blade structure may occur in which cleverly square fractal transform phenomenon, and easy to process, be not in the phenomenon rocked.The utility model
Series of polygons involute can be easily drawn, by the related notion visualization of theory of mechanics, directly perceivedization, student is facilitated to class
The understanding of journey, improves learning interest.
Claims (5)
1. a kind of polygon involute draws teaching aid, it is characterised in that：It include geared linkage mechanism, main shaft, many blade mechanisms,
Base disc group, many blade mechanisms include handwheel, hand wheel pole, blade stock, blade quarter butt, connection fastening assembly, the base
Disc set includes small base disc, middle base disc, the big base disc set gradually from top to bottom, and the main shaft sequentially passes through small base
Disk, middle base disc, the center of big base disc, the big base disc, drafting chi are bolted on bottom plate, described to draw
It is fixed with one end of chi on drafting pen, the big base disc and is provided with handwheel, the handwheel passes through hand wheel pole and big base disc
Blade stock and blade quarter butt are provided with connection, the handwheel, the blade stock is engaged with blade quarter butt, the big base
Multiple connection fastening assemblies for being matched by pad, nut, bolt and being synthesized are additionally provided with disk, the big base disc passes through connection
Fastening assembly is connected with middle base disc, and geared linkage mechanism is provided between the middle base disc and small base disc, described
Geared linkage mechanism includes bearing, sleeve, slide block connecting rod, sliding block, spring, two pitch wheels, rotating bars, the master
Horizontal rotating bar is fixed with axle, the rotating bar is connected by bearing with the spring being arranged in sleeve, the sleeve end
End is connected with sliding block by slide block connecting rod, and the slide block connecting rod is vertically arranged with drawing chi, and the sliding block, which is arranged on, draws chi
Groove is interior and can move back and forth along groove, and many blade mechanisms collectively form polygon with drawing chi, geared linkage mechanism
Involute drawing apparatus, the drafting chi be connected with geared linkage mechanism and with base disc side tightly fit constitute basic circle gradually open
Line drawing apparatus.
2. a kind of polygon involute according to claim 1 draws teaching aid, it is characterised in that：The gear includes being arranged
Gear a on the main shaft and gear b in being fixed on base disc.
3. a kind of polygon involute according to claim 1 draws teaching aid, it is characterised in that：Many blade mechanisms are adopted
Coordinated with four blade stocks and four blade quarter butts.
4. a kind of polygon involute according to claim 1 draws teaching aid, it is characterised in that：The bearing and sleeve it
Between be provided with circlip for shaft.
5. a kind of polygon involute according to claim 1 draws teaching aid, it is characterised in that：The main shaft and rotating bar
Junction is provided with inner ear locked spacer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621206833.4U CN206349072U (en) | 2016-11-03 | 2016-11-03 | A kind of polygon involute draws teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621206833.4U CN206349072U (en) | 2016-11-03 | 2016-11-03 | A kind of polygon involute draws teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206349072U true CN206349072U (en) | 2017-07-21 |
Family
ID=59317067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621206833.4U Expired - Fee Related CN206349072U (en) | 2016-11-03 | 2016-11-03 | A kind of polygon involute draws teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206349072U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108583085A (en) * | 2018-06-04 | 2018-09-28 | 鲁东大学 | The dual-purpose plotter of involute cycloid |
-
2016
- 2016-11-03 CN CN201621206833.4U patent/CN206349072U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108583085A (en) * | 2018-06-04 | 2018-09-28 | 鲁东大学 | The dual-purpose plotter of involute cycloid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20170721 Termination date: 20171103 |