CN204166793U - A kind of cam structure teaching tool - Google Patents
A kind of cam structure teaching tool Download PDFInfo
- Publication number
- CN204166793U CN204166793U CN201420250426.8U CN201420250426U CN204166793U CN 204166793 U CN204166793 U CN 204166793U CN 201420250426 U CN201420250426 U CN 201420250426U CN 204166793 U CN204166793 U CN 204166793U
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- cam
- driven member
- driving shaft
- frame
- driven
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Abstract
The utility model relates to teaching aid technical field, specifically a kind of cam structure teaching tool.A kind of cam structure teaching tool, comprise frame (1), cam (2), driven member (3), plotter (4) and driving handle (5), described cam (2) and driven member (3) are arranged in frame (1), described plotter (4) is for drawing cam curve, and described drive part comprises and is erected at described cam slide groove (1a) upper driving shaft (6), horizontal drive gear (61) and rotary actuation gear (62); Camming movement part, described camming movement part comprises camshaft (7) and cam driving gear (71); Driven member motion parts, described driven member motion parts comprises driven shaft (8) and driven sliding block (81).This apparatus can demonstrate the motion principle of cam mechanism, conveniently can embody the relation between driven member movement locus and cam face, and accurately draw cam curve.
Description
Technical field
The utility model relates to teaching aid technical field, specifically a kind of cam structure teaching tool.
Background technology
About the teaching of cam mechanism, for want of directly can demonstrate the teaching aid of cam mechanism motion principle and kinetic characteristic, and cause present stage teaching only to rest on the theory teaching stage.Therefore, the form of giving lessons of this content is relatively dry as dust, and students ' enthusiasm is not high, thus affects quality of instruction and teaching process.For this reason, how by the motion principle of cam mechanism and kinetic characteristic vivid carry out classroom real time demonstration and become a research topic.Chinese patent notification number CN202523298U, November 7 2012 day for announcing, the name of innovation and creation is called a kind of cam mechanism characteristics of motion plotting apparatus, that application discloses a kind of cam mechanism characteristics of motion plotting apparatus, it is formed primarily of frame, handle, cam, driven member, pencil, plotting sheet, driving-belt and belt pulley; This plotting sheet is fixing, and move horizontally with travelling belt, pencil is fixed on driven member on a moving belt, when cam rotates, moves up and down, on plotting sheet, automatically draw the relation curve between the characteristics of motion of driven member and cam face with driven member.It simply can be demonstrated the motion principle of cam mechanism and can draw out correspondingly cam curve, but it also has deficiency: drive plotting sheet motion by travelling belt, because travelling belt flexibility is stronger, plotting sheet may to be caused in conveyer belt process along with while travelling belt movement, plotting sheet may carry out the movement of height within the specific limits, cause the cam curve of drafting and theoretical value deviation comparatively large, affect result of use.
Utility model content
The utility model provides a kind of cam structure teaching tool, and this apparatus can demonstrate the motion principle of cam mechanism, conveniently can embody the relation between driven member movement locus and cam face, and accurately draw cam curve.
The utility model solves the design proposal that its technical matters adopts: a kind of cam structure teaching tool, comprise frame, cam, driven member, plotter and driving handle, described cam and driven member are equipped with in frame, described plotter is arranged on described driven member near end for drawing cam curve, its special feature is, described frame comprises front end panel and rear bearing sheet plate, this front end panel and this rear bearing sheet penetrate along its length and arrange cam slide groove and driven member sliding tray, overall in " three line lattice " structure; Described drive part comprises integral erection on described cam slide groove and the driving shaft that can slide at cam slide groove, sets gradually horizontal drive gear on the driving shaft and rotary actuation gear, described horizontal drive gear be positioned at frame front end panel front and with to be positioned at immediately below described horizontal drive gear and the tooth bar be fixedly installed in described frame matches; Camming movement part, described camming movement part comprises integral erection on described cam slide groove and the camshaft that can slide at cam slide groove and be arranged on the cam driving gear matched on described camshaft and with described rotary actuation gear, and described cam to be arranged on described camshaft and to be positioned at frame front end panel dead ahead; Driven member motion parts, described driven member motion parts comprises the driven shaft of integral erection on driven member sliding tray and is arranged on driven shaft one end and the driven sliding block be slidably matched with driven member sliding tray, this driven sliding block is provided with the driven member shifting chute for the vertical movement of driven member, and described driven member is arranged in this driven member shifting chute;
Be provided with first connecting rod between described driving shaft and described camshaft, one end and the described driving shaft of this connecting link are hinged, its other end and described camshaft hinged;
Be provided with second connecting rod between described driving shaft and described driven shaft, one end and the described driving shaft of this second connecting rod are hinged, its other end and described driven shaft hinged.
As a kind of embodiment, described driving shaft is to be arranged on described cam slide groove at driving shaft end and the rolling bearing between described horizontal drive gear and rotary actuation gear, and this rolling bearing coordinates with described drive shaft turns.
As a kind of embodiment, described camshaft is by being arranged on described cam slide groove at tail end of camshaft and the rolling bearing frame between described cam and described cam driving gear, and this rolling bearing coordinates with described cam axle.
As another embodiment, described camshaft is by being arranged on described cam slide groove at tail end of camshaft and the rolling bearing frame between described cam and described cam driving gear, and this rolling bearing coordinates with described cam axle; Described driving shaft is by being arranged on described cam slide groove at driving shaft end and the rolling bearing between described horizontal drive gear and rotary actuation gear, and this rolling bearing coordinates with described drive shaft turns.
As another embodiment, described front end panel is detachably arranged in described frame.
Described front end panel and rear bearing sheet are transparent panel.
As another embodiment, described driven member shifting chute upper surface is positioned at place directly over driven member and is provided with baffle plate.
As another embodiment, described frame upper surface is provided with length scale line along its length, and described horizontal drive gear upper surface is along the circumferential direction provided with angle index line.
As another embodiment, described plotter is movably arranged on described driven member end, and this plotter can be pencil, water-color paintbrush, chalk, ball pen or wax crayon.
As another embodiment, below described frame, sucker is set.
As shown from the above technical solution, the utility model provides a kind of cam structure teaching tool, and this apparatus can demonstrate the motion principle of cam mechanism, conveniently can embody the relation between driven member movement locus and cam face, and accurately draw cam curve.
The beneficial effects of the utility model:
(1), this teaching aid project organization is simple, and be convenient for carrying, can use in multiple place in classroom, laboratory etc., in addition, this teaching aid is provided with sucker, is adsorbed on teaching aid as blackboard, blank are demonstrated by this sucker.
(2), this teaching aid instrument is provided with scale mark, quantitative test can be carried out to figure, more intuitively observe correlation curve data.
(3), this teaching aid replaces uninteresting theory calculate with figure intuitively, both solved the puzzlement of student to pure theory deduction, has been convenient to again next step data analysis, reduced the learning pressure of teachers ' teaching difficulty and student, contributed to improving teaching efficiency.
(4) cam, in this teaching aid can be dismantled, and can install dissimilar cam, and carry out the cam curve demonstration of multiple cam, applicability is strong.
Accompanying drawing explanation
Fig. 1: the front view of the utility model cam structure teaching tool;
Fig. 2: the vertical view cutaway drawing of the utility model cam structure teaching tool;
Fig. 3: cut-open view is looked on a left side for the utility model cam structure teaching tool.
1. frames in figure, 1a. front end panel, 1b. rear bearing sheet, 1c. cam slide groove, 1d. driven member sliding tray, 2. cam, 3. driven member, 4. plotter, 5. driving handle, 6. driving shaft, 61. horizontal drive gears, 62. rotary actuation gears, 63. tooth bars, 64. drive rolling bearing, 7. camshaft, 71. cam driving gears, 72. cam rolling bearings, 8. driven shaft, 81. driven sliding block, 82. driven member shifting chutes, 9. first connecting rod, 10. second connecting rod, 11. baffle plates, 12. length scale lines, 13. angle index lines, 14. suckers, 15. waist holes, 16. bolts.
Embodiment
Fig. 1 is the front view of the utility model cam structure teaching tool, and Fig. 2 is the vertical view cutaway drawing of the utility model cam structure teaching tool, and Fig. 3 is that cut-open view is looked on a left side for the utility model cam structure teaching tool.
As Fig. 1, shown in Fig. 2 and Fig. 3, a kind of cam structure teaching tool, comprise frame 1, cam 2, driven member 3, plotter 4 and driving handle 5, cam 2 and driven member 3 are equipped with in frame 1, plotter 4 is arranged on driven member 3 near end for drawing cam curve, frame 1 comprises front end panel 1a and rear bearing sheet plate 1b, front end panel 1a and this rear bearing sheet 1b penetrates along its length and arranges cam slide groove 1c and driven member sliding tray 1d, overall in " three line lattice " structure, frame 1 is provided with waist hole 15, front end panel 1a is removably disposed in frame 1 by bolt 16, drive part comprises integral erection on described cam slide groove 1a and the driving shaft 6 that can slide at cam slide groove 1c, is successively set on horizontal drive gear 61 on driving shaft 6 and rotary actuation gear 62, horizontal drive gear 61 be positioned at front end panel 1a front and with to be positioned at immediately below horizontal drive gear 61 and the tooth bar 63 be fixedly installed in frame 1 matches, camming movement part comprises integral erection on cam slide groove 1c and the camshaft 7 that can slide at cam slide groove 1a and be arranged on the cam driving gear 71 matched on camshaft 7 and with rotary actuation gear 62, and cam 2 to be arranged on camshaft 7 and to be positioned at frame front end panel 1a dead ahead, driven member motion parts comprises the driven shaft of integral erection on driven member sliding tray 1d 8 and is arranged on driven shaft 8 one end and the driven sliding block 81 be slidably matched with driven member sliding tray 1d, this driven sliding block 81 is provided with the driven member shifting chute 82 for the vertical movement of driven member 3, and driven member 3 is arranged in this driven member shifting chute 82, be provided with first connecting rod 9 between driving shaft 10 and camshaft 20, one end and the driving shaft 6 of first connecting rod 9 are hinged, its other end and camshaft 7 hinged, be provided with second connecting rod 10 between driving shaft 6 and driven shaft 8, one end and the driving shaft 6 of this second connecting rod 10 are hinged, its other end and driven shaft 8 hinged.
Driving shaft 6 is to be arranged on cam slide groove 1c at driving shaft 6 end and the rolling bearing between horizontal drive gear 61 and rotary actuation gear 62 64, and this rolling bearing 64 is rotatably assorted with driving shaft 6.
Camshaft 7 is by being arranged on cam slide groove 1a at camshaft 7 end and the rolling bearing between cam 2 and cam driving gear 71 72 frame, and this rolling bearing 72 is rotatably assorted with camshaft 20.
Driving shaft 6 is by being arranged on cam slide groove 1c at driving shaft 6 end and the rolling bearing between horizontal drive gear 61 and rotary actuation gear 62 64, and this rolling bearing 64 is rotatably assorted with driving shaft 6.
Front end panel 1a and rear bearing sheet 1b is detachably arranged in frame 1.
Front end panel 1a and rear bearing sheet 1b is transparent panel.
Driven member shifting chute 82 upper surface is positioned at place directly over driven member 3 and is provided with baffle plate 11.
Frame 1 upper surface is provided with length scale line 12 along its length, and horizontal drive gear 101 upper surface is along the circumferential direction provided with angle index line 13.
Plotter 4 is movably arranged on described driven member 3 end, and in the present embodiment, this plotter 4 is chalk, and this plotter also can be water-color paintbrush, ball pen or wax crayon certainly.
Sucker 14 is set below frame 1.
Cam curve drawing process:
As shown in Figure 1, by sucker 14, cam structure teaching tool is fixed on blackboard, now, the A point of the chalk end correspondence position on plotter 4 shown in Fig. 1.Rotary actuation handle 5, driving handle 5 drives driving shaft 6 to rotate, and the horizontal drive gear 61 that driving shaft 6 is arranged and rotary actuation gear 62 rotate along with the rotation of driving shaft 6; Wherein, rotary actuation gear 62 engages with the cam driving gear 71 be positioned on camshaft 7, cam driving gear 71 rotates along with the rotation of rotary actuation gear 62, and camshaft 7 rotates under the drive of cam driving gear 71, and then the cam 2 be positioned on camshaft 7 starts to rotate; Cam 2 rotary motion, now driven member 3 can do vertical motion along with the rotary motion of cam 2 along driven member shifting chute 82; Wherein, horizontal drive gear 61 engages with tooth bar 63, and tooth bar 63 is fixed, horizontal drive gear 61 entirety drive driving shaft 6 and on horizontal drive gear 61 and rotary actuation gear 62 entirety to moving horizontally along cam slide groove 1c in the horizontal direction; First connecting rod 9 is provided with between driving shaft 10 and camshaft 20, second connecting rod 10 is provided with between driving shaft 6 and driven shaft 8, under the connection of first connecting rod 9 and second connecting rod 10, camshaft 7 and driven shaft 8 are synchronized with the movement along with moving of driving shaft 6, the driven sliding block 81 of driven shaft 8 one end is also done level of synchronization and is moved, and then driven member 3 integral level moves.Rotary actuation handle 5, as shown in Figure 1, drive part, camming movement part and the equal entirety of driven member motion parts carry out moving (drive part after mobile, camming movement part and the double dot dash line of driven member motion parts represent), and the chalk end correspondence position on plotter 4 moves to B point by A point.In moving process, a cam curve just drawn out by chalk on blackboard.
Present embodiments provide a kind of cam structure teaching tool, this apparatus can demonstrate the motion principle of cam mechanism, conveniently can embody the relation between driven member movement locus and cam face, and accurately draw cam curve.
Claims (10)
1. a cam structure teaching tool, comprise frame (1), cam (2), driven member (3), plotter (4) and driving handle (5), described cam (2) and driven member (3) are equipped with in frame (1), described plotter (4) is arranged on the close end of described driven member (3) for drawing cam curve, it is characterized in that:
Described frame (1) comprises front end panel (1a) and rear bearing sheet plate (1b), this front end panel (1a) and this rear bearing sheet (1b) penetrate along its length and arrange cam slide groove (1c) and driven member sliding tray (1d), overall in " three line lattice " structure;
Drive part, described drive part comprise integral erection at the upper and driving shaft (6) that can slide at cam slide groove (1c) of described cam slide groove (1a), be successively set on horizontal drive gear (61) on driving shaft (6) and rotary actuation gear (62), described horizontal drive gear (61) be positioned at frame front end panel (1a) front and with to be positioned at immediately below described horizontal drive gear (61) and the tooth bar (63) be fixedly installed in described frame (1) matches;
Camming movement part, described camming movement part comprises integral erection at the upper and camshaft (7) that can slide at cam slide groove (1a) of described cam slide groove (1c) be arranged on described camshaft (7) and go up and the cam driving gear (71) matched with described rotary actuation gear (62), and described cam (2) is arranged on described camshaft (7) and goes up and be positioned at frame front end panel (1a) dead ahead;
Driven member motion parts, described driven member motion parts comprises the driven shaft (8) of integral erection on driven member sliding tray (1d) and is arranged on driven shaft (8) one end and the driven sliding block (81) be slidably matched with driven member sliding tray (1d), this driven sliding block (81) is provided with the driven member shifting chute (82) for the vertical movement of driven member (3), and described driven member (3) is arranged in this driven member shifting chute (82);
First connecting rod (9) is provided with between described driving shaft (10) and described camshaft (20), one end and the described driving shaft (6) of this first connecting rod (9) are hinged, its other end and described camshaft (7) hinged;
Second connecting rod (10) is provided with between described driving shaft (6) and described driven shaft (8), one end and the described driving shaft (6) of this second connecting rod (10) are hinged, its other end and described driven shaft (8) hinged.
2. a kind of cam structure teaching tool according to claim 1, it is characterized in that: described driving shaft (6) is by being positioned at driving shaft (6) end and the rolling bearing (64) between described horizontal drive gear (61) and rotary actuation gear (62) is arranged on described cam slide groove (1c), and this rolling bearing (64) and described driving shaft (6) are rotatably assorted.
3. a kind of cam structure teaching tool according to claim 1, it is characterized in that: described camshaft (7) is by being positioned at camshaft (7) end and rolling bearing (72) frame between described cam (2) and described cam driving gear (71) is arranged on described cam slide groove (1a), and this rolling bearing (72) and described camshaft (20) are rotatably assorted.
4. a kind of cam structure teaching tool according to claim 3, it is characterized in that: described driving shaft (6) is by being positioned at driving shaft (6) end and the rolling bearing (64) between described horizontal drive gear (61) and rotary actuation gear (62) is arranged on described cam slide groove (1c), and this rolling bearing (64) and described driving shaft (6) are rotatably assorted.
5. a kind of cam structure teaching tool according to claim 1, is characterized in that: described front end panel (1a) is detachably arranged in described frame (1).
6. a kind of cam structure teaching tool according to claim 1, is characterized in that: described front end panel (1a) and rear bearing sheet (1b) are transparent panel.
7. a kind of cam structure teaching tool according to claim 1, is characterized in that: described driven member shifting chute (82) upper surface is positioned at place directly over driven member (3) and is provided with baffle plate (11).
8. a kind of cam structure teaching tool according to claim 1, it is characterized in that: described frame (1) upper surface is provided with length scale line (12) along its length, described horizontal drive gear (101) upper surface is along the circumferential direction provided with angle index line (13).
9. a kind of cam structure teaching tool according to claim 1, it is characterized in that: described plotter (4) is movably arranged on described driven member (3) end, this plotter (4) can be pencil, water-color paintbrush, chalk, ball pen or wax crayon.
10. according to any one cam structure teaching tool described in claim 1 to 9, it is characterized in that: described frame (1) below arranges sucker (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420250426.8U CN204166793U (en) | 2014-05-12 | 2014-05-12 | A kind of cam structure teaching tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420250426.8U CN204166793U (en) | 2014-05-12 | 2014-05-12 | A kind of cam structure teaching tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204166793U true CN204166793U (en) | 2015-02-18 |
Family
ID=52540459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420250426.8U Expired - Fee Related CN204166793U (en) | 2014-05-12 | 2014-05-12 | A kind of cam structure teaching tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204166793U (en) |
-
2014
- 2014-05-12 CN CN201420250426.8U patent/CN204166793U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20160512 |