CN204029263U - Changeable cam drawing demonstrator - Google Patents
Changeable cam drawing demonstrator Download PDFInfo
- Publication number
- CN204029263U CN204029263U CN201420402339.XU CN201420402339U CN204029263U CN 204029263 U CN204029263 U CN 204029263U CN 201420402339 U CN201420402339 U CN 201420402339U CN 204029263 U CN204029263 U CN 204029263U
- Authority
- CN
- China
- Prior art keywords
- cam
- curve
- paintbrush
- drawing curve
- pen
- 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
Abstract
Changeable cam drawing demonstrator, movable upper rail and upper hopper chute guide rail are connected through the hinge; Swivel pen and paintbrush connecting link are connected on slide block by swivel pen fixed block; Slide block and slide rail are fixed on slide rail support bar; Ruling pen is connected with paintbrush connecting link by drawing curve fixed bar; Gear and tooth bar engagement; Gear is connected by gear shaft with curve disk; Drawing curve is clipped on drawing curve slot, and tooth bar is connected with drawing curve by drawing curve fixture; Cam, dwang cover, vertical chute, connection polished rod, cam paintbrush fixed cover, cam paintbrush form swing driven member jointly.This device volume is little, lightweight, is easy to carry, and function is many, is applicable to cam teaching--the teaching of the contents such as-reversal process, adjustable eccentric distance, roller follower, flat-face follower, measurement pressure angle, offset cam displaying.Drawing curve adopts the mode of Linear cut can be combined into more than 40 kind of displacement curve, can also draw the mathematic curves such as cosine, sine, sieve's Archimedes line.
Description
Technical field
The utility model relates to demonstration teaching aid technical field, is specifically a kind of changeable cam drawing demonstrator.
Background technology
Existing cam teaching instrument and equipment has the following disadvantages: 1, existing cam experimental apparatus is bulky, and floor area large inconvenient teacher carry, and is not suitable for classroom instruction; 2, function singleness, can only show one or several aspect; What 3, have needs electrical bond, and complex structure, parts are special, hardware is perishable and cost is high; 4, disappearance is interactive, and substantially can only be operated and complicated operation by teacher, safety coefficient is not high; 5, serviceable life is short, requires high to Conservation environment.
Utility model content
For above-mentioned Problems existing, the purpose of this utility model is to provide a kind of changeable cam drawing demonstrator.
The technical solution of the utility model is: changeable cam drawing demonstrator, comprise movable upper rail, swivel pen, ruling pen, curve disk, upper hopper chute guide rail, cam, cam paintbrush, gliding groove guide rail, drawing curve, it is characterized in that: movable upper rail and upper hopper chute guide rail are connected through the hinge; Swivel pen and paintbrush connecting link are connected on slide block by swivel pen fixed block; Slide block and slide rail are fixed on slide rail support bar; Slide rail support bar, upper hopper chute guide rail and gliding groove guide rail are linked together by crossbeam form the skeleton of whole device in " work " fonts; Ruling pen is connected with paintbrush connecting link by drawing curve fixed bar; Gear and tooth bar engagement; Gear is connected by gear shaft with curve disk; Drawing curve is clipped on drawing curve slot; Tooth bar is connected with drawing curve by drawing curve fixture; Cam, dwang cover, vertical chute, connection polished rod, cam paintbrush fixed cover, cam paintbrush form swing driven member jointly; Tooth bar is connected with middle studdle by supporting rack shaft; Support rack shaft and gear shaft are all arranged on middle studdle.
Advantage of the present utility model: this device volume is little, lightweight, is easy to carry, can be used for " mechanical principle " cam chapters and sections teaching or at laboratory demonstration; Function is many, is applicable to cam teaching--the teaching of a series of contents such as-reversal process, adjustable eccentric distance, roller follower, flat-face follower, measurement pressure angle, offset cam displaying.In addition, drawing curve adopts the mode of Linear cut can be combined into more than 40 kind of displacement curve, can also draw the mathematic curves such as cosine, sine, sieve's Archimedes line; Adopt modular design, structure is simple, and with low cost, cost performance is high; Simple to operate, teachers and students all can use, and do not have burr to hurt sb.'s feelings, the safety problem such as electric leakage, long service life.
Accompanying drawing explanation
Fig. 1 is structure vertical view of the present utility model.
Fig. 2 is structure front elevation of the present utility model.
Embodiment
Now by reference to the accompanying drawings, the utility model is illustrated further.
As shown in Figure 1, 2, movable upper rail 1 is connected by hinge 2 with upper hopper chute guide rail 12; Swivel pen 3 and paintbrush connecting link 7 are connected on slide block 25 by swivel pen fixed block 4; Slide block 25 and slide rail 23 are fixed on slide rail support bar 5; Slide rail support bar 5, upper hopper chute guide rail 12 and gliding groove guide rail 20 to be linked together in " work " font by crossbeam 6 and form the skeleton of whole device; Ruling pen 9 is connected with paintbrush connecting link 7 by drawing curve fixed bar 8; Gear 13 and tooth bar 11 engage; Gear 13 is connected by gear shaft 26 with curve disk 10; Drawing curve 22 is clipped on drawing curve slot 21, and drawing curve slot 21 can horizontally slip between upper hopper chute guide rail 12, gliding groove guide rail 20; Tooth bar 11 is connected with drawing curve 22 by drawing curve fixture 24; Cam 14, dwang cover 15, vertical chute 16, connection polished rod 17, cam paintbrush fixed cover 18, cam paintbrush 19 jointly composition swing driven member; Tooth bar 11 is connected with middle studdle 28 by supporting rack shaft 27; Support rack shaft 27 and gear shaft 26 are all arranged on middle studdle 28.
Principle of work: with dragging drawing curve 22 about hand, moves left and right being with carry-over bar 11 simultaneously; Gear 13 because tooth bar 11 engages with gear 13, have again gear 13 coaxial with curve disk 10, so will do coaxial circular motion with curve disk 10; Drawing curve 22 can drive swivel pen 3 to move up and down on slide rail 23 while moving, and also just drives ruling pen 9 to move up and down.Synthesized the forming process of cam by the rectilinear motion of ruling pen 9 and the circular motion of curve disk 10, cam will occur on curve disk 10.
With dragging drawing curve 22 about hand, move left and right being with carry-over bar 11 simultaneously; Gear 13 because tooth bar 11 engages with gear 13, have again gear 13 coaxial with cam 14, so will do coaxial circular motion with cam 14; The rectilinear motion of drawing curve 22 and the rectilinear motion of driven member have synthesized the characteristics of motion curve of oscillating follower.
Claims (1)
1. changeable cam drawing demonstrator, comprise movable upper rail (1), swivel pen (3), ruling pen (9), curve disk (10), upper hopper chute guide rail (12), cam (14), cam paintbrush (19), gliding groove guide rail (20), drawing curve (22), it is characterized in that: movable upper rail (1) is connected by hinge (2) with upper hopper chute guide rail (12); Swivel pen (3) and paintbrush connecting link (7) are connected on slide block (25) by swivel pen fixed block (4); Slide block (25) and slide rail (23) are fixed on slide rail support bar (5); Slide rail support bar (5), upper hopper chute guide rail (12) and gliding groove guide rail (20) are linked together by crossbeam (6) form the skeleton of whole device in " work " fonts; Ruling pen (9) is connected with paintbrush connecting link (7) by drawing curve fixed bar (8); Gear (13) and tooth bar (11) engagement; Gear (13) is connected by gear shaft (26) with curve disk (10); Drawing curve (22) is clipped on drawing curve slot (21); Tooth bar (11) is connected with drawing curve (22) by drawing curve fixture (24); Cam (14), dwang cover (15), vertical chute (16), connection polished rod (17), cam paintbrush fixed cover (18), cam paintbrush (19) jointly composition swing driven member; Tooth bar (11) is connected with middle studdle (28) by supporting rack shaft (27); Support rack shaft (27) and gear shaft (26) are all arranged on middle studdle (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420402339.XU CN204029263U (en) | 2014-07-21 | 2014-07-21 | Changeable cam drawing demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420402339.XU CN204029263U (en) | 2014-07-21 | 2014-07-21 | Changeable cam drawing demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204029263U true CN204029263U (en) | 2014-12-17 |
Family
ID=52069099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420402339.XU Expired - Fee Related CN204029263U (en) | 2014-07-21 | 2014-07-21 | Changeable cam drawing demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204029263U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104732866A (en) * | 2015-04-08 | 2015-06-24 | 武汉科技大学 | Disc cam profile design teaching demonstration and motion characteristic measuring instrument |
| CN104766529A (en) * | 2015-04-12 | 2015-07-08 | 吉林大学 | Gear drive type gear meshing instrument without pressure angle |
| CN108922333A (en) * | 2018-09-27 | 2018-11-30 | 莆田学院 | Describe sinusoidal teaching demonstration device and application method |
| CN109147495A (en) * | 2018-09-27 | 2019-01-04 | 莆田学院 | The teaching demonstration device and application method for approaching sawtooth wave are gradually superimposed with sine wave |
-
2014
- 2014-07-21 CN CN201420402339.XU patent/CN204029263U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104732866A (en) * | 2015-04-08 | 2015-06-24 | 武汉科技大学 | Disc cam profile design teaching demonstration and motion characteristic measuring instrument |
| CN104732866B (en) * | 2015-04-08 | 2017-05-10 | 武汉科技大学 | Disc cam profile design teaching demonstration and motion characteristic measuring instrument |
| CN104766529A (en) * | 2015-04-12 | 2015-07-08 | 吉林大学 | Gear drive type gear meshing instrument without pressure angle |
| CN108922333A (en) * | 2018-09-27 | 2018-11-30 | 莆田学院 | Describe sinusoidal teaching demonstration device and application method |
| CN109147495A (en) * | 2018-09-27 | 2019-01-04 | 莆田学院 | The teaching demonstration device and application method for approaching sawtooth wave are gradually superimposed with sine wave |
| CN109147495B (en) * | 2018-09-27 | 2023-08-25 | 莆田学院 | Teaching demonstration device for successive superposition approximation of sawtooth wave by sine wave and use method |
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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: 20141217 Termination date: 20150721 |
|
| EXPY | Termination of patent right or utility model |