CN203773851U - Parabolic demonstration teaching aid - Google Patents
Parabolic demonstration teaching aid Download PDFInfo
- Publication number
- CN203773851U CN203773851U CN201420128211.9U CN201420128211U CN203773851U CN 203773851 U CN203773851 U CN 203773851U CN 201420128211 U CN201420128211 U CN 201420128211U CN 203773851 U CN203773851 U CN 203773851U
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- CN
- China
- Prior art keywords
- gear
- screw
- nut
- transmitting
- shaft
- 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 relates to teaching equipment field and specifically to a parabolic demonstration teaching aid for demonstrating crankshaft connecting rod transmission and gear rotation principles. The parabolic demonstration teaching aid is mainly composed of a top screw nut 1, a middle screw nut 1, a side plate 1, a gear 1, a gear 2, a gear disc, a transmitting assembly, a frame assembly, a pressing plate, a screw 1, a side plate 2, a top screw nut 2, a middle screw nut 2, a motor, a screw 2, a shaft coupling, a screw 3, a reducer, a rear bottom screw nut 2, a front bottom screw nut 2, a gear shaft, a crankshaft assembly, a rear bottom screw nut 1, and a front bottom screw nut 1. The motor is an adjustable-speed motor. The transmitting assembly is mainly composed of a transmitting disc, a transmitting angle adjusting shaft, a transmitting rotating shaft, and a transmitting cylinder. The frame assembly is mainly composed of a top shaft, a rear bottom shaft, a front rear shaft, and a frame. The crankshaft assembly is mainly composed of a semicircle, a crankshaft, a ball body, a connecting rod, and a hemisphere. The parabolic demonstration teaching aid is simple in structure, easy in manipulation, good in interestingness, and capable of demonstrating crankshaft connecting rod transmission and gear rotation principles.
Description
Technical field
The utility model relates to teaching equipment field, refers in particular to a kind of a kind of parabolic demonstration teaching aid that is used for demonstrating crankshaft-link rod transmission and gear rotary principle.
Background technology
In the teaching process of the courses such as Machine Design, often need to demonstrate crankshaft-link rod transmission and gear rotary principle, but also there is no the more satisfactory teaching aid of this respect at present.
Utility model content
In order to address the above problem, the utility model provides a kind of parabolic demonstration teaching aid.
The technical scheme that the utility model adopts is:
Described a kind of parabolic demonstration teaching aid mainly by top nut I, in nut I, side plate I, gear I, gear II, toothed disc, transmitting assembly, support assembly, pressing plate, screw I, side plate II, top nut II, middle nut II, motor, screw II, shaft coupling, screw III, speed reduction unit, lower back nut II, lower front nut II, gear shaft, crank assemblby, lower back nut I and lower front nut I form.Described motor is buncher.Described transmitting assembly mainly consists of transmitting dish, emission angle regulating shaft, transmitting rotation axis and launching tube.Described support assembly mainly consists of upper axle, lower rear axle, lower front axle and frame.Described crank assemblby mainly consists of semicircle, bent axle, bulb body, connecting rod and hemisphere, described semicircle is connected with described bent axle by four pairs of screw-nuts with described bulb body, and described connecting rod is connected with the bulb of described bulb body by four pairs of screw-nuts with described hemisphere.Described toothed disc has cylindrical I, nine uniform reception bucket and screw hole I.The described cylindrical I of described toothed disc coordinates with the endoporus of described frame, uniform four through holes of described pressing plate, the described cylindrical I of described toothed disc screws through four through holes on described pressing plate and four described screw hole I of described toothed disc respectively with four pieces of described screw I after packing the endoporus of described frame into, and now described toothed disc can freely rotate at the endoporus of described frame together with described pressing plate.Described side plate I and described side plate II have upper hole, emission angle regulating shaft arc groove hole, transmitting rotational axis hole, crankshaft hole, lower front hole, lower metapore and gear axis hole, and described side plate II also has speed reduction unit installation screw and motor installation screw.On described bent axle, fill corresponding flat key, described gear I and corresponding jump ring, on described gear shaft, fill corresponding flat key, described gear II and corresponding jump ring.Described connecting rod is inserted to described launching tube, two, left and right of described upper axle, described emission angle regulating shaft, described transmitting rotation axis, described bent axle, described gear shaft, described lower front axle and described lower rear axle is respectively charged into the corresponding aperture of described side plate I, described side plate II, and two, left and right of axle, described emission angle regulating shaft, described lower front axle and described lower rear axle screws in respectively corresponding nut on described, now described gear shaft and the engagement of described toothed disc, described gear I and described gear II engagement.With four pieces of described screw III by being connected described speed reduction unit be arranged on described side plate II with four described speed reduction unit installation screws, with four pieces of described screw II, by being connected with four described motor installation screws, described motor is arranged on to described side plate II above, between described speed reduction unit and described motor, by described shaft coupling, connects.
The beneficial effects of the utility model are: rational in infrastructure, easy and simple to handle, there is good interest, and can demonstrate crankshaft-link rod transmission and gear rotary principle.
Accompanying drawing explanation
Below in conjunction with figure of the present utility model, further illustrate:
Fig. 1, Fig. 2 are structural representations of the present utility model.For the ease of with the aid of pictures, the I of side plate described in Fig. 2 is hiding.
Fig. 3 is explosive view of the present utility model.
Fig. 4 is the structural representation of described support assembly.
Fig. 5 is the structural representation of described toothed disc.
Fig. 6 is the structural representation of described transmitting assembly.
Fig. 7 is the structural representation of described crank assemblby.
Fig. 8 is the explosive view of described crank assemblby.
Fig. 9 is the structural representation of described side plate I, side plate II.
In figure, 1. top nut I, 2. nut I in, 3. side plate I, 4. gear I, 5. gear II, 6. toothed disc, 7. launch assembly, 8. support assembly, 9. pressing plate, 10. screw I, 11. side plate II, 12. top nut II, nut II in 13., 14. motors, 15. screw II, 16. shaft couplings, 17. screw III, 18. speed reduction units, 19. times back nut II, II nut before 20. times, 21. gear shafts, 22. crank assemblbies, 23. times back nut I, nut I before 24. times, axle on 25., 26. times rear axles, 27. times front axles, 28. frames, 29. cylindrical I, 30. receive bucket, 31. screw hole I, 32. transmitting dishes, 33. emission angle regulating shafts, 34. transmitting rotation axiss, 35. launching tubes, 36. semicircles, 37. bent axles, 38. bulb bodies, 39. connecting rods, 40. hemisphere, hole on 41., 42. emission angle regulating shaft arc groove holes, 43. transmitting rotational axis holes, 44. crankshaft holes, 45. times front holes, 46. times metapores, 47. gear axis holes, 48. speed reduction unit installation screws, 49. motor installation screws.
Embodiment
Described a kind of parabolic demonstration teaching aid is mainly by described top nut I (1), described middle nut I (2), described side plate I (3), described gear I (4), described gear II (5), described toothed disc (6), described transmitting assembly (7), described support assembly (8), described pressing plate (9), described screw I (10), described side plate II (11), described top nut II (12), described middle nut II (13), described motor (14), described screw II (15), described shaft coupling (16), described screw III (17), described speed reduction unit (18), described lower back nut II (19), described lower front nut II (20), described gear shaft (21), described crank assemblby (22), described lower back nut I (23) and described lower front nut I (24) form.Described motor (14) is buncher.Described transmitting assembly (7) mainly consists of described transmitting dish (32), described emission angle regulating shaft (33), described transmitting rotation axis (34) and described launching tube (35).Described support assembly (8) mainly consists of described upper axle (25), described lower rear axle (26), described lower front axle (27) and described frame (28).Described crank assemblby (22) mainly consists of described semicircle (36), described bent axle (37), described bulb body (38), described connecting rod (39) and described hemisphere (40), described semicircle (36) is connected with described bent axle (37) by four pairs of screw-nuts with described bulb body (38), and described connecting rod (39) is connected with the bulb of described bulb body (38) by four pairs of screw-nuts with described hemisphere (40).Described toothed disc (6) has described cylindrical I (29), nine uniform described reception buckets (30) and described screw hole I (31).The described cylindrical I (29) of described toothed disc (6) coordinates with the endoporus of described frame (28), uniform four through holes of described pressing plate (9), the described cylindrical I (29) of described toothed disc (6) screws through four through holes on described pressing plate (9) and four described screw hole I (31) of described toothed disc (6) respectively with four pieces of described screw I (10) after packing the endoporus of described frame (28) into, and now described toothed disc (6) can freely rotate at the endoporus of described frame (28) together with described pressing plate (9).Described side plate I (3) and described side plate II (11) have described upper hole (41), described emission angle regulating shaft arc groove hole (42), described transmitting rotational axis hole (43), described crankshaft hole (44), described lower front hole (45), described lower metapore (46) and described gear axis hole (47), and described side plate II (11) also has described speed reduction unit installation screw (48) and described motor installation screw (49).On described bent axle (37), fill corresponding flat key, described gear I (4) and corresponding jump ring, on described gear shaft (21), fill corresponding flat key, described gear II (5) and corresponding jump ring.Described connecting rod (39) is inserted to described launching tube (35), by described upper axle (25), described emission angle regulating shaft (33), described transmitting rotation axis (34), described bent axle (37), described gear shaft (21), two, left and right of described lower front axle (27) and described lower rear axle (26) is respectively charged into described side plate I (3), the corresponding aperture of described side plate II (11), and on described axle (25), described emission angle regulating shaft (33), two, left and right of described lower front axle (27) and described lower rear axle (26) screws in respectively corresponding nut, now described gear shaft (21) meshes with described toothed disc (6), described gear I (4) and described gear II (5) engagement.With four pieces of described screw III (17) by being connected described speed reduction unit (18) be arranged on described side plate II (11) with four described speed reduction unit installation screws (48), with four pieces of described screw II (15), by being connected with four described motor installation screws (49), described motor (14) is arranged on to described side plate II (11) above, between described speed reduction unit (18) and described motor (14), by described shaft coupling (16), connects.
The number of teeth of remembering described gear shaft (21) is Z
1,
The number of teeth of remembering described toothed disc (6) is Z
2,
The number of teeth of remembering described gear II (5) is Z
3,
The number of teeth of remembering described gear I (4) is Z
4.
Order:
The module of described gear shaft (21), described toothed disc (6) is 1, and Z
1=20, Z
2=120.
The module of described gear II (5), described gear I (4) is 2, and Z
3,=30, Z
4,=20.
Known through calculating, described toothed disc (6) circles, and described gear I (4) turns 9 weeks.
During demonstration, start described motor (14), described gear shaft (21) rotates in a clockwise direction by Fig. 2, drive described toothed disc (6) counterclockwise to rotate, described gear II (5) drives described gear I (4) to rotate simultaneously, described bent axle (37) rotates, described connecting rod (39) carrys out repercussion in described launching tube (35), now put into a sizeable steel ball described transmitting dish (32) is inner, steel ball will enter described launching tube (35), under the impact of described connecting rod (39), steel ball flies out in described launching tube (35), described reception bucket (30) towards described toothed disc (6) flies to.Regulate the rotating speed of described motor (14), or adjust the position of described emission angle regulating shaft (33) in described emission angle regulating shaft arc groove hole (42), just can make steel ball just fly into described in one of them of described toothed disc (6) receives in bucket (30), described toothed disc (6) continues counterclockwise to rotate, when having received the described reception bucket (30) of steel ball and turned to peak, steel ball falls back in described transmitting dish (32) under inciting somebody to action, and then starts to circulate next time.
Claims (1)
1. a parabolic demonstration teaching aid, mainly by top nut I, in nut I, side plate I, gear I, gear II, toothed disc, transmitting assembly, support assembly, pressing plate, screw I, side plate II, top nut II, middle nut II, motor, screw II, shaft coupling, screw III, speed reduction unit, lower back nut II, lower front nut II, gear shaft, crank assemblby, lower back nut I and lower front nut I form; Described transmitting assembly mainly consists of transmitting dish, emission angle regulating shaft, transmitting rotation axis and launching tube; Described support assembly mainly consists of upper axle, lower rear axle, lower front axle and frame; Described crank assemblby mainly consists of semicircle, bent axle, bulb body, connecting rod and hemisphere; It is characterized in that: described motor is buncher; Described semicircle is connected with described bent axle by four pairs of screw-nuts with described bulb body, and described connecting rod is connected with the bulb of described bulb body by four pairs of screw-nuts with described hemisphere; Described toothed disc has cylindrical I, nine uniform reception bucket and screw hole I; The described cylindrical I of described toothed disc coordinates with the endoporus of described frame, uniform four through holes of described pressing plate, the described cylindrical I of described toothed disc screws through four through holes on described pressing plate and four described screw hole I of described toothed disc respectively with four pieces of described screw I after packing the endoporus of described frame into; Described side plate I and described side plate II have upper hole, emission angle regulating shaft arc groove hole, transmitting rotational axis hole, crankshaft hole, lower front hole, lower metapore and gear axis hole, and described side plate II also has speed reduction unit installation screw and motor installation screw; Described gear shaft and the engagement of described toothed disc, described gear I and described gear II engagement; Between described speed reduction unit and described motor, by described shaft coupling, connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420128211.9U CN203773851U (en) | 2014-03-15 | 2014-03-15 | Parabolic demonstration teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420128211.9U CN203773851U (en) | 2014-03-15 | 2014-03-15 | Parabolic demonstration teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203773851U true CN203773851U (en) | 2014-08-13 |
Family
ID=51291011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420128211.9U Expired - Fee Related CN203773851U (en) | 2014-03-15 | 2014-03-15 | Parabolic demonstration teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203773851U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871311A (en) * | 2014-03-15 | 2014-06-18 | 金华职业技术学院 | Parabolic demonstration teaching aid |
-
2014
- 2014-03-15 CN CN201420128211.9U patent/CN203773851U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871311A (en) * | 2014-03-15 | 2014-06-18 | 金华职业技术学院 | Parabolic demonstration teaching aid |
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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: 20140813 Termination date: 20150315 |
|
| EXPY | Termination of patent right or utility model |