CN104332094B - Apparatus for drawing cam motion chart - Google Patents
Apparatus for drawing cam motion chart Download PDFInfo
- Publication number
- CN104332094B CN104332094B CN201410475727.5A CN201410475727A CN104332094B CN 104332094 B CN104332094 B CN 104332094B CN 201410475727 A CN201410475727 A CN 201410475727A CN 104332094 B CN104332094 B CN 104332094B
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- CN
- China
- Prior art keywords
- plate
- cam
- synchronous pulley
- header board
- driving gear
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Classifications
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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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- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Coating Apparatus (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses an apparatus for drawing a cam motion chart. The apparatus comprises a frame, a main transmission part, a fixation disc, a translation plate, a hold-in range tensioning mechanism, an eccentric mechanism, a follower mechanism and a cam. Compared to a conventional teaching aid, the apparatus provided by the invention has the advantages: almost all explanation of knowledge points of motion rules related with a cam motion curve map is covered, the motion curve maps of cams in any shapes can be drawn, and such parameters as a cam turn angle, a basic circle dimension, a return travel angle, a travel angle, a farthest dwell angle, a nearest dwell angle and the like can be effectively detected. The apparatus is practical and convenient, greatly deepens students' understanding of a cam motion curve, facilitates teaching and improves the teaching quality.
Description
Technical field
The invention belongs to a kind of teaching aid is and in particular to a kind of device of drafting cam motion line chart.
Background technology
Learn for classmates《Theory of mechanics》Time-consuming painstakingly, concept is unclear, the present situation of inefficiency, and we analyse in depth
About the relevant difficult point of theory of mechanics, just《Theory of mechanics》In《Cam mechanism and its design》The design of this chapter is a relevant convex
The teaching aid of wheel, teacher can be used as teaching aid with it, explanation about cam portion theory of mechanics class knowledge it is also possible to be used for
As experiment appliance it is intended to allow classmates more easily to learn《Theory of mechanics》This subject, deepens the reason to corresponding knowledge point
Solution and grasping, allow learning process to become truly can to feel, image intereting, save the quality time of classmates, improve learning efficiency.
Content of the invention
The present invention is directed to the deficiencies in the prior art it is proposed that a kind of device of drafting cam motion line chart.
The present invention a kind of draw cam motion line chart device include frame, main transmission part, fixed disc, translatory plate,
Timing Belt strainer, driven member mechanism and cam.
Described frame is made up of one piece of base plate, one piece of back plate and one piece of header board.Header board length is less than back plate length.Header board and
Back plate is parallel to each other, and is all vertically fixed on base plate.The position being higher than header board in back plate is provided with optical axis guide rail fixed mount, light
Two optical axis guide rails being parallel to each other are horizontally disposed with axis rail fixed mount.
Described main transmission part includes wind, driving gear, driven gear, lower synchronous pulley, upper synchronous pulley, synchronization
Band, change-speed gearing and tooth bar.
Described wind is fixed on the outside of back plate by power transmission shaft, and transmission the tip of the axis arranges a change-speed gearing,
Change-speed gearing is engaged with driving gear, and driving gear, lower synchronous pulley are co-axially located between front and rear panels, lower synchronous pulley
Upper synchronous pulley is driven by Timing Belt, upper synchronous pulley and driven gear are coaxially disposed, driven gear and horizontally disposed tooth
Bar engages, and described change-speed gearing is 1 with the gear ratio of driving gear:3.
It is carved with scale on described fixed disc, is coaxially disposed with driving gear, lower synchronous pulley, and be arranged on the outer of header board
Side, the circle centre position of fixed disc is provided with cylindrical boss, and the right and left of cylindrical boss has a screwed hole.Will be convex
Cylindrical boss in the middle of fixed disc for the wheel positions, screws by with the screwed hole on clamping screw and fixed disc.
Described translatory plate is one piece of rectangular slab, and its width is less than the width of header board, is arranged on two by two linear bearings
On root optical axis guide rail；The right and left of translatory plate has two screwed holes, and pressing plate passes through four lock-screws and translatory plate
On four screwed holes be connected, described pressing plate is U-board, and the bottom of pressing plate has a rectangular channel, sets in rectangular channel
It is equipped with a positive stop strip being fixedly connected with translatory plate, be carved with scale in the right and left of pressing plate.
Described driven member mechanism includes a fixing slide block, free line slideway, upper holder, a connector；
Described fixing slide block is fixedly installed on header board, and free line slideway is connected with fixing slide block, freely straight
The upper end of line guide rail arranges a upper holder, and upper holder has a paintbrush installing hole vertical with translatory plate, installs
Outside hole, a clamping screw is set, the lower end of free line slideway is fixedly connected with lower contact, and described lower contact has
Three cylinder magnetic head installing holes, described connector is provided with the cylinder magnetic head of three, connector and lower contact Matching installation.
Beneficial effect：Compared with existing teaching aid, the present invention almost covers all motions relevant with cam movement profiles
The explanation of law knowledge point, can draw the movement profiles of arbitrary shape cam, cam angle, basic circle size, backhaul angle, go journey
The parameters such as angle, far angle of repose, near angle of repose can effectively be measured.Convenient and practical, significantly deepen student bent to cam motion
The understanding of line, facilitates teaching, improves quality of instruction.
Brief description
Fig. 1 is the front view of the present invention；
Fig. 2 is the side view of the present invention；
Fig. 3-1 is the front view of roller-type connector；
Fig. 3-2 is the axonometric drawing of roller-type connector；
Fig. 3-3 is the front view of lower contact；
Fig. 4 is main drive gear schematic diagram.
Specific embodiment
Below in conjunction with the accompanying drawings the embodiment of the present invention is elaborated.
A kind of device drawing cam motion line chart of the present invention includes frame, main transmission part, fixed disc 1, translatory plate
22nd, Timing Belt strainer, driven member mechanism and cam.
As shown in Figure 1 and Figure 2, described frame is made up of 12, one piece of back plate 13 of one piece of base plate and one piece of header board 34.Header board is long
Degree is less than back plate length.Front and rear panels are parallel to each other, and are all vertically fixed on base plate.The position being higher than header board in back plate sets
It is equipped with optical axis guide rail fixed mount 4, optical axis guide rail fixed mount 4 is horizontally disposed with two optical axis guide rails being parallel to each other 3.
As shown in figure 4, described main transmission part includes wind 14, driving gear 33, driven gear 27, lower synchronous pulley
16th, upper synchronous pulley 18, Timing Belt 17, change-speed gearing 15 and tooth bar 19.
Described wind 14 is fixed on the outside of back plate by power transmission shaft, and transmission the tip of the axis arranges a change-speed gearing
15, change-speed gearing is engaged with driving gear 33, driving gear 33, lower synchronous pulley 16 be co-axially located at header board 34 and back plate 13 it
Between, lower synchronous pulley 16 drives upper synchronous pulley 18 by Timing Belt, and upper synchronous pulley 18 and driven gear 27 are coaxially disposed, from
Moving gear 27 is engaged with horizontally disposed tooth bar 19.
It is carved with scale on described fixed disc 1, be coaxially disposed with driving gear 33, lower synchronous pulley 16, and before being arranged on
The outside of plate, the circle centre position of fixed disc is provided with cylindrical boss 11, and the right and left of cylindrical boss has a spiral shell
Pit.Cam 32 is positioned by the cylindrical boss 11 in the middle of fixed disc 1, passes through on clamping screw 10 and fixed disc 1
Screwed hole cooperation screws.
Described translatory plate 22 is one piece of rectangular slab, and its width is less than the width of header board, is arranged by two linear bearings 21
On two optical axis guide rails 3；The right and left of translatory plate 22 has two screwed holes, and pressing plate 5 passes through four lock-screws 6
It is connected with four screwed holes on translatory plate 22, described pressing plate is U-board, the bottom of pressing plate has a rectangular channel,
It is provided with a positive stop strip being fixedly connected with translatory plate 22 7 in rectangular channel, be carved with scale in the right and left of pressing plate.
Described driven member mechanism includes fixing 29, free 25, upper holder 23 of line slideway of slide block, connects
Fitting 31；
As shown in Fig. 3-1, Fig. 3-2, Fig. 3-3, described fixing sliding 29 pieces are fixedly installed on header board, free line slideway
It is connected with fixing slide block, the upper end of free line slideway arranges a upper holder, upper holder has one and puts down
The vertical paintbrush installing hole of dynamic plate, arranges a clamping screw, the lower end of free line slideway and lower contact 30 outside installing hole
It is fixedly connected, described lower contact has three cylinder magnetic head installing holes 44, described connector is provided with the cylinder of three
Magnetic head 45, connector 31 and lower contact Matching installation.
1. the cam 32 of model needed for choosing, cam 32 is positioned by the round boss 11 in the middle of fixed disc 1, by locking
Bolt 10 is screwed with the screwed hole cooperation on fixed disc 1；
2. roller contact head 31 is contained in vertically free line slideway 25 lower contact 30, and props up with cam.
3. press from both sides paintbrush 24 on upper holder 23, and locked by clamping screw.
5. translatory plate 22 is moved on to low order end, regulation pressing plate 5 is elastic, drawing paper on folder.
6. rotate handwheel 14, drive change-speed gearing, thus driving the driving gear 33 engaging with change-speed gearing, driving gear
33rd, lower synchronous pulley 16, fixed disc 1 are coaxially fixed, and driving gear 33 rotates to drive and similarly hereinafter walks belt wheel 16, fixed disc rotation
1, lower synchronous pulley 16 passes through Timing Belt 17 and drives upper synchronous pulley 18 to rotate, and upper synchronous pulley 18 is coaxially solid with driven gear 27
Calmly, thus driving driven gear 27 to rotate, driven gear 27 is engaged with tooth bar 19, thus carrying carry-over bar 19 and consolidating with tooth bar 19
Fixed translatory plate 22 about the translation connecting.
Rotate handwheel 14, by a series of above-mentioned drive mechanisms until fixed disc 1 rotates one week, cam 32 moves song
Line is just completed.
Claims (1)
1. a kind of device drawing cam motion line chart, opens including frame, main transmission part, fixed disc, translatory plate, Timing Belt
Tight mechanism, driven member mechanism and cam；
It is characterized in that：Described frame is made up of one piece of base plate, one piece of back plate and one piece of header board；It is long that header board length is less than back plate
Degree；Front and rear panels are parallel to each other, and are all vertically fixed on base plate；The position being higher than header board in back plate is provided with optical axis guide rail
Fixed mount, optical axis guide rail fixed mount is horizontally disposed with two optical axis guide rails being parallel to each other；
Described main transmission part include wind, driving gear, driven gear, lower synchronous pulley, upper synchronous pulley, Timing Belt,
Change-speed gearing and tooth bar；
Described wind is fixed on the outside of back plate by power transmission shaft, and transmission the tip of the axis arranges a change-speed gearing, speed change
Gear is engaged with driving gear, and driving gear, lower synchronous pulley are co-axially located between front and rear panels, and lower synchronous pulley passes through
Timing Belt drives upper synchronous pulley, and upper synchronous pulley and driven gear are coaxially disposed, and driven gear is nibbled with horizontally disposed tooth bar
Close, described change-speed gearing is 1 with the gear ratio of driving gear:3；
It is carved with scale on described fixed disc, be coaxially disposed with driving gear, lower synchronous pulley, and be arranged on the outside of header board,
The circle centre position of fixed disc is provided with cylindrical boss, and the right and left of cylindrical boss has a screwed hole；By cam
Cylindrical boss in the middle of fixed disc positions, screws by with the screwed hole on clamping screw and fixed disc；
Described translatory plate is one piece of rectangular slab, and its width is less than the width of header board, is arranged on two light by two linear bearings
On axis rail；The right and left of translatory plate has two screwed holes, and pressing plate passes through on four lock-screws and translatory plate
Four screwed holes are connected, and described pressing plate is U-board, and the bottom of pressing plate has a rectangular channel, is provided with rectangular channel
A piece positive stop strip being fixedly connected with translatory plate, is carved with scale in the right and left of pressing plate；
Described driven member mechanism includes a fixing slide block, free line slideway, upper holder, a connector；
Described fixing slide block is fixedly installed on header board, and free line slideway is connected with fixing slide block, and free straight line is led
The upper end of rail arranges a upper holder, upper holder has a paintbrush installing hole vertical with translatory plate, outside installing hole
Side arranges a clamping screw, and the lower end of free line slideway is fixedly connected with lower contact, and described lower contact has three
Cylinder magnetic head installing hole, described connector is provided with the cylinder magnetic head of three, connector and lower contact Matching installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410475727.5A CN104332094B (en) | 2014-09-17 | 2014-09-17 | Apparatus for drawing cam motion chart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410475727.5A CN104332094B (en) | 2014-09-17 | 2014-09-17 | Apparatus for drawing cam motion chart |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104332094A CN104332094A (en) | 2015-02-04 |
| CN104332094B true CN104332094B (en) | 2017-02-15 |
Family
ID=52406812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410475727.5A Expired - Fee Related CN104332094B (en) | 2014-09-17 | 2014-09-17 | Apparatus for drawing cam motion chart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104332094B (en) |
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| CN203623226U (en) * | 2013-12-26 | 2014-06-04 | 曹群 | Geometric parameter variable cam motion displacement curve drawing instrument |
| CN203659329U (en) * | 2013-11-20 | 2014-06-18 | 张国军 | Multi-parameter multivariable cam measurement experiment table |
| CN203759974U (en) * | 2014-03-20 | 2014-08-06 | 南京农业大学 | Cam mechanism comprehensive experiment apparatus |
| CN103971584A (en) * | 2014-05-23 | 2014-08-06 | 武汉理工大学 | Comprehensive demonstrating teaching tool for cam mechanism |
| CN203773864U (en) * | 2014-04-24 | 2014-08-13 | 温州大学 | Designed-through-reverse-method teaching aid used for demonstrating disc type cam profile |
| CN104008694A (en) * | 2014-04-22 | 2014-08-27 | 江汉大学 | Teaching aid for drawing contour curve of cam |
| CN104008691A (en) * | 2014-04-22 | 2014-08-27 | 江汉大学 | Mechanical movement demonstration teaching aid |
| CN204102448U (en) * | 2014-09-17 | 2015-01-14 | 杭州电子科技大学 | Draw the device of camming movement line chart |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0546075A (en) * | 1991-08-20 | 1993-02-26 | Matsushita Electric Ind Co Ltd | Machine control learning device |
| KR100304573B1 (en) * | 1998-11-12 | 2001-11-30 | 구자홍 | Structure for preventing oil discharge in rotary compressor |
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2014
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Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100137703A (en) * | 2009-06-23 | 2010-12-31 | 김인옥 | One touch clamping apparatus for practical training materials |
| CN202523298U (en) * | 2011-11-11 | 2012-11-07 | 南京化工职业技术学院 | Mapper for cam gear movement rules |
| CN203659329U (en) * | 2013-11-20 | 2014-06-18 | 张国军 | Multi-parameter multivariable cam measurement experiment table |
| CN203607022U (en) * | 2013-12-12 | 2014-05-21 | 青岛理工大学 | Multifunctional teaching aid based on linkage mechanisms |
| CN203623226U (en) * | 2013-12-26 | 2014-06-04 | 曹群 | Geometric parameter variable cam motion displacement curve drawing instrument |
| CN103824503A (en) * | 2014-03-10 | 2014-05-28 | 武昌工学院 | Experimental device and method for mechanisms |
| CN203759974U (en) * | 2014-03-20 | 2014-08-06 | 南京农业大学 | Cam mechanism comprehensive experiment apparatus |
| CN104008694A (en) * | 2014-04-22 | 2014-08-27 | 江汉大学 | Teaching aid for drawing contour curve of cam |
| CN104008691A (en) * | 2014-04-22 | 2014-08-27 | 江汉大学 | Mechanical movement demonstration teaching aid |
| CN203773864U (en) * | 2014-04-24 | 2014-08-13 | 温州大学 | Designed-through-reverse-method teaching aid used for demonstrating disc type cam profile |
| CN103971584A (en) * | 2014-05-23 | 2014-08-06 | 武汉理工大学 | Comprehensive demonstrating teaching tool for cam mechanism |
| CN204102448U (en) * | 2014-09-17 | 2015-01-14 | 杭州电子科技大学 | Draw the device of camming movement line chart |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104332094A (en) | 2015-02-04 |
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Granted publication date: 20170215 Termination date: 20180917 |
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| CF01 | Termination of patent right due to non-payment of annual fee |