CN113487956A - Intelligent mechanical design classroom demonstration teaching aid - Google Patents
Intelligent mechanical design classroom demonstration teaching aid Download PDFInfo
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- CN113487956A CN113487956A CN202110611477.3A CN202110611477A CN113487956A CN 113487956 A CN113487956 A CN 113487956A CN 202110611477 A CN202110611477 A CN 202110611477A CN 113487956 A CN113487956 A CN 113487956A
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- bevel gear
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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
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Abstract
The utility model provides an intelligent machine design classroom demonstration teaching aid, the on-line screen storage device comprises a base, the base top sets up the sleeve, the disc is connected at the sleeve both ends, the disc all is connected with the base through the support, the first through-hole is seted up at the disc center that is located the right side, first pivot of first through-hole internal connection, the handle is connected to first pivot outer end, the inner suit initiative bevel gear of first pivot, four second through-holes are seted up to the sleeve side, the elastic expansion axle of second through-hole internal connection, the inner driven bevel gear of equal suit of elastic expansion axle, four elastic expansion axle outer ends have gear drive presentation device in proper order, turbine worm presentation device, cam presentation device and four-bar linkage presentation device, elastic expansion axle rotates the presentation device motion that all can drive the correspondence. According to the invention, various basic mechanical motions can be displayed to students by rotating the handle, so that the students are helped to deepen impression and understanding, the teaching efficiency is effectively improved, the students can learn more quickly, and teachers are more relaxed.
Description
Technical Field
The invention belongs to the field of mechanical motion display devices, and particularly relates to an intelligent mechanical design classroom demonstration teaching aid.
Background
In the process of mechanical teaching, structural design and motion characteristics of some bases are generally simply explained on a blackboard, students with weak imagination are difficult to learn, but angles of conventional simple mechanical motions are independently and individually displayed, so that a teacher is inconvenient to carry and use, and teaching efficiency is delayed.
Disclosure of Invention
The invention provides an intelligent mechanical design classroom demonstration teaching aid, which is used for solving the defects in the prior art.
The invention is realized by the following technical scheme:
an intelligent mechanical design classroom demonstration teaching aid comprises a base, wherein a horizontal sleeve is arranged above the base, two ends of the sleeve are rotatably connected with discs, the discs are fixedly connected with the base through a support, a first through hole is formed in the center of the disc on the right side, a first rotating shaft is rotatably connected in the first through hole, the outer end of the first rotating shaft is fixedly connected with a handle, a driving bevel gear is sleeved at the inner end of the first rotating shaft, four second through holes are sequentially formed in the side surface of the sleeve along the circumferential direction, an elastic telescopic shaft is rotatably connected in the second through holes, a driven bevel gear is sleeved at the inner end of the elastic telescopic shaft and can be mutually meshed with the driving bevel gear, a gear transmission demonstration device and a turbine worm demonstration device are sequentially arranged at the outer ends of the four elastic telescopic shafts, the cam demonstration device and the four-bar mechanism demonstration device can drive the corresponding demonstration devices to move when the elastic telescopic shafts rotate.
As above an intelligent machine design classroom demonstration teaching aid, gear drive presentation device include the driving gear, the driving gear suit is in the elastic expansion shaft outer end that corresponds, the sleeve side rotates in proper order along the position department that the generating line direction corresponds the driving gear and connects the several second pivot, suit the driven gear of diameter variation in size in proper order in every second pivot, mesh in proper order between the driven gear, and the driven gear and the driving gear intermeshing of right-hand member.
As above an intelligent machine design classroom demonstration teaching aid, turbine worm presentation device include first bevel gear, first bevel gear suit is in the elastic telescopic shaft outer end that corresponds, the position department that the sleeve side corresponds first bevel gear sets up the third pivot, the third pivot passes through axle bed and sleeve side fixed connection, third pivot one end suit second bevel gear, first bevel gear and second bevel gear intermeshing, third pivot other end suit third bevel gear, the position department that the sleeve side corresponds third bevel gear sets up the worm, the worm passes through two second axle beds and sleeve side fixed connection, worm one end suit fourth bevel gear, fourth bevel gear and third bevel gear intermeshing, the position department that the sleeve side corresponds the worm rotates and connects the fifth pivot, suit turbine in the fifth pivot, turbine worm and intermeshing.
As above an intelligent machine design classroom demonstration teaching aid, cam presentation device include the cam, the cam suit is on the elastic expansion shaft that corresponds, the sleeve side corresponds the position department fixed mounting backup pad of cam, sets up the baffle between backup pad and the cam, several guide bars of baffle side fixed mounting, the guide bar passes the backup pad, fixed mounting spring between baffle and the backup pad, baffle and cam side contact cooperation.
As above an intelligent machine design classroom demonstration teaching aid, four-bar linkage presentation device include the crank, crank fixed mounting is in the elasticity telescopic link outer end that corresponds, the sleeve side corresponds articulate position department fixed mounting guide rail, the cooperation installation slider on the guide rail rotates on the slider and connects the rocker, rotate through the connecting rod rotation between rocker expansion end and the crank expansion end and be connected, set up locking mechanism on the slider, locking mechanism makes the slider can't remove on the guide rail by oneself, wherein the connecting rod can be dismantled with the pivot of crank and rocker rotation junction.
As above an intelligent mechanical design classroom demonstration teaching aid, the elastic telescopic rod movable rod side be close to the equal fixed mounting driving lever in position department of the disc on right side, the disc medial surface that is located the right side is close to front end department fixed mounting V font pole, and V font pole opening towards first pivot, the driving lever side that is located the front side cooperates with the medial surface contact of V type pole.
As the teaching aid for intelligent mechanical design classroom demonstration, a plurality of boosting rods are fixedly mounted on the outer side surface of the sleeve along the circumferential direction at equal intervals.
The invention has the advantages that: the movement structures of the foundation in the machine are all arranged on the sleeve, so that the movement of the foundation machine displayed for students is quicker and more convenient, and the movement structure is particularly used; when the corresponding gear transmission characteristics need to be displayed for students, the sleeve is rotated to enable the gear transmission demonstration device to face the students, then the elastic telescopic shaft on the gear transmission demonstration device is made to stretch, the driven bevel gear is meshed with the driving bevel gear, then the handle is rotated, at the moment, the elastic telescopic shaft can be driven to rotate, so that the gear transmission demonstration device can be driven to rotate, the gear transmission characteristics and properties can be displayed for the students, and similarly, when different mechanical motions need to be displayed for the students, the corresponding demonstration device is made to stretch out and draw back after facing the students, and the driving bevel gear and the driven bevel gear are rotated to enable the different demonstration devices to move; the invention has smart structure and low cost, and can show various basic mechanical motions to students by rotating the handle, thereby helping the students deepen impression and understanding, effectively improving teaching efficiency, and leading the students to learn faster and teachers to feel easier.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a top view of FIG. 1; FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2; FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2; FIG. 5 is a perspective view of a gear drive play set; FIG. 6 is a perspective view of the worm gear demonstration device; fig. 7 is a perspective view of a cam demo; fig. 8 is a perspective view of the four-bar linkage play set.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An intelligent mechanical design classroom demonstration teaching aid comprises a base 1, a horizontal sleeve 2 is arranged above the base 1, two ends of the sleeve 2 are rotatably connected with discs 3, the discs 3 are fixedly connected with the base 1 through a support 4, a first through hole 5 is formed in the center of the disc 3 on the right side, a first rotating shaft 6 is rotatably connected in the first through hole 5, the outer end of the first rotating shaft 6 is fixedly connected with a handle 7, a driving bevel gear 8 is sleeved at the inner end of the first rotating shaft 6, four second through holes 9 are sequentially formed in the side surface of the sleeve 2 along the circumferential direction, an elastic telescopic shaft 10 is rotatably connected in the second through hole 9, a driven bevel gear 11 is sleeved at the inner end of the elastic telescopic shaft 10, the driven bevel gear 11 can be mutually meshed with the driving bevel gear 8, a gear transmission demonstration device, a worm gear demonstration device, a cam demonstration device and a four-bar linkage demonstration device are sequentially arranged at the outer ends of the four elastic telescopic shafts 10, the rotation of the elastic telescopic shaft 10 can drive the corresponding demonstration device to move. The movement structures of the foundation in the machine are all arranged on the sleeve 2, so that the movement of the foundation machine displayed to students is quicker and more convenient, and the movement structure is particularly used; when the corresponding gear transmission characteristics need to be displayed for students, the sleeve 2 is rotated to enable the gear transmission demonstration device to face the students, then the elastic telescopic shaft 10 on the gear transmission demonstration device is made to stretch, the driven bevel gear 11 and the driving bevel gear 8 are meshed with each other, then the handle 7 is rotated, and at the moment, the elastic telescopic shaft 10 can be driven to rotate, so that the gear transmission demonstration device can be driven to rotate, the gear transmission characteristics and properties can be displayed for the students, and similarly, when different mechanical movements need to be displayed for the students, the corresponding demonstration device is made to stretch towards the students and then the corresponding elastic telescopic shaft 10 is made to stretch, so that the driving bevel gear 8 and the driven bevel gear 11 rotate, and therefore different demonstration devices move; the invention has smart structure and low cost, and can show various basic mechanical motions to students by rotating the handle 7, thereby helping the students deepen impression and understanding, effectively improving teaching efficiency, and leading the students to learn faster and teachers to feel easier.
Specifically, as shown in fig. 5, the gear transmission demonstration apparatus according to the present embodiment includes a driving gear 12, the driving gear 12 is sleeved at the outer end of the corresponding elastic telescopic shaft 10, the side surface of the sleeve 2 is sequentially rotatably connected to a plurality of second rotating shafts 13 at positions corresponding to the driving gear 12 along the bus direction, driven gears 14 having different diameters are sequentially sleeved on each second rotating shaft 13, the driven gears 14 are sequentially engaged with each other, and the driven gear 14 at the rightmost end is engaged with the driving gear 12. This design makes inner driven bevel gear 11 and the meshing of drive bevel gear 8 through making the flexible telescopic shaft 10 that the cover is equipped with driving gear 12 flexible, later rotates handle 7 and drives drive bevel gear 8 through first pivot 6 and rotate, drives elastic telescopic shaft 10 through driven bevel gear 11 and rotates to drive driving gear 12 and rotate, driving gear 12 rotates and has then driven the gear train and rotate, can demonstrate the convenient teaching of gear drive's process and detail for the student this moment.
Specifically, as shown in fig. 6, the worm and gear demonstration apparatus according to this embodiment includes a first bevel gear 15, the first bevel gear 15 is sleeved on an outer end of a corresponding elastic telescopic shaft 10, a third rotating shaft 16 is disposed at a position on a side surface of a sleeve 2 corresponding to the first bevel gear 15, the third rotating shaft 16 is fixedly connected with a side surface of the sleeve 2 through a shaft seat 17, a second bevel gear 18 is sleeved on one end of the third rotating shaft 16, the first bevel gear 15 and the second bevel gear 18 are engaged with each other, a third bevel gear 19 is sleeved on the other end of the third rotating shaft 16, a worm 20 is disposed at a position on a side surface of the sleeve 2 corresponding to the third bevel gear 19, the worm 20 is fixedly connected with a side surface of the sleeve 2 through two second shaft seats 24, a fourth bevel gear 21 is sleeved on one end of the worm 20, the fourth bevel gear 21 and the third bevel gear 19 are engaged with each other, a position on a side surface of the sleeve 2 corresponding to the worm 20 is rotatably connected with a fifth rotating shaft 22, a worm wheel 23 is sleeved on the fifth rotating shaft 22, the worm wheel 23 is intermeshed with the worm 20. This design is through flexible the elastic expansion shaft 10 that will correspond, make initiative bevel gear 8 and the driven bevel gear 11 intermeshing that corresponds, thereby later rotate handle 7 and drive the elastic expansion shaft 10 that corresponds and rotate, elastic expansion shaft 10 rotates and drives first bevel gear 15 and rotate, drive fourth bevel gear 21 through second bevel gear 18 and third bevel gear 19 and rotate, thereby drive worm 20 and rotate, thereby worm 20 rotates and has driven turbine 23 and rotate simultaneously, thereby can show the transmission characteristic and the function of turbine worm to the student this moment and thus the understanding and the memory of student with higher speed.
Further, as shown in fig. 7, the cam demonstration device according to the present embodiment includes a cam 25, the cam 25 is sleeved on the corresponding elastic telescopic shaft 10, a supporting plate 26 is fixedly installed at a position of the side surface of the sleeve 2 corresponding to the cam, a partition 27 is disposed between the supporting plate 26 and the cam 25, a plurality of guiding rods 28 are fixedly installed at the side surface of the partition 27, the guiding rods 28 pass through the supporting plate 26, a spring 29 is fixedly installed between the partition 27 and the supporting plate 26, and the partition 27 is in contact fit with the side surface of the cam 25. This design makes driven bevel gear 11 and driving gear 8 intermeshing through flexible elastic telescopic rod 10 with corresponding, later rotates handle 7 and can drive cam 25 and rotate, and cam 25 rotates and can promote baffle 27 and realize the back and forth movement, and this design can very audio-visual performance cam motion's characteristic and characteristics to make the student more audio-visual understanding cam motion's characteristics and nature, make things convenient for the student to study.
Furthermore, as shown in fig. 8, the four-bar mechanism demonstration apparatus according to the present embodiment includes a crank 30, the crank 30 is fixedly installed at the outer end of the corresponding elastic telescopic rod 10, a guide rail 31 is fixedly installed at a position of the side surface of the sleeve 2 corresponding to the crank 30, a sliding block 32 is installed on the guide rail 31 in a matching manner, a rocker 33 is rotatably connected to the sliding block 32, a movable end of the rocker 33 is rotatably connected to a movable end of the crank 30 through a connecting rod 34, a locking mechanism is installed on the sliding block 32, the locking mechanism enables the sliding block 32 to be incapable of moving on the guide rail 31 by itself, and the connecting rod 34 is detachable from a rotating shaft at a rotating connection position of the crank 30 and the rocker 33. Firstly, make slider 32 pin through operating locking mechanism, later make corresponding driven bevel gear 11 and drive bevel gear 8 intermeshing, later rotate handle 7 and can drive crank 30 and rotate, crank 30 rotates and can drive rocker 33 and do corresponding motion, later through opening locking mechanism, be connected rocker 33 and crank 30 rotation, can demonstrate the slider-crank structure that four-bar linkage warp to the student this moment, thereby help the student better understanding four-bar linkage's principle and nature, improve teaching quality, make student's learning efficiency higher.
Furthermore, as shown in fig. 4, the shifting lever 35 is fixedly installed on the side surface of the movable rod of the elastic telescopic rod 10 close to the right disc 3, the V-shaped rod 36 is fixedly installed on the inner side surface of the right disc 3 close to the front end, the opening of the V-shaped rod 36 faces the first rotating shaft 6, and the side surface of the shifting lever 35 on the front side is in contact fit with the inner side surface of the V-shaped rod 36. This design is through rotating sleeve 2 when, driving lever 35 side and the 36 medial surface contact cooperation of V type pole this moment, this moment under the effect of V type pole 36, can promote driving lever 35 and remove to first pivot 6, driving lever 35 removes the 10 extensions of elastic expansion shaft that drive corresponds, thereby make corresponding driven gear 11 and driving gear 8 draw close each other and intermeshing, thereby can drive the presentation device motion that corresponds when rotating handle 7, this design rotates the presentation device when the front side, can make the driven bevel gear 11 and the 8 intermeshing of driving bevel gear of front side automatically, thereby make this device motion, and the presentation device motion of front side, also make things convenient for the student to watch, thereby make this device use convenient and reliable more.
Furthermore, as shown in the figure, a plurality of boosting rods 37 are fixedly installed on the outer side surface of the sleeve 2 along the circumferential direction at equal intervals. This design can make the mr more convenient at the rotation sleeve 2 through helping hand pole 37, makes this device life come more reliable.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. The utility model provides an intelligence mechanical design classroom demonstration teaching aid which characterized in that: the gear transmission demonstration device comprises a base (1), a horizontal sleeve (2) is arranged above the base (1), two ends of the sleeve (2) are respectively rotatably connected with discs (3), the discs (3) are respectively fixedly connected with the base (1) through a support (4), a first through hole (5) is formed in the center of the disc (3) on the right side, a first rotating shaft (6) is rotatably connected in the first through hole (5), a handle (7) is fixedly connected to the outer end of the first rotating shaft (6), a driving bevel gear (8) is sleeved at the inner end of the first rotating shaft (6), four second through holes (9) are sequentially formed in the side surface of the sleeve (2) along the circumferential direction, an elastic telescopic shaft (10) is rotatably connected in the second through holes (9), a driven bevel gear (11) is sleeved at the inner end of the elastic telescopic shaft (10), the outer end of the driven bevel gear (11) can be mutually meshed with the driving bevel gear (8), and gear transmission demonstration devices are sequentially installed on the four elastic telescopic shafts (10), The demonstration device comprises a worm and gear demonstration device, a cam demonstration device and a four-bar mechanism demonstration device, and the corresponding demonstration devices can be driven to move by the rotation of the elastic telescopic shafts (10).
2. An intelligent machine design classroom demonstration teaching aid according to claim 1, wherein: the gear transmission demonstration device comprises a driving gear (12), the driving gear (12) is sleeved at the outer end of a corresponding elastic telescopic shaft (10), the side face of a sleeve (2) is sequentially connected with a plurality of second rotating shafts (13) in a rotating mode along the position of the driving gear (12) corresponding to the bus direction, driven gears (14) with different diameters are sequentially sleeved on each second rotating shaft (13), the driven gears (14) are sequentially meshed, and the driven gear (14) at the rightmost end is meshed with the driving gear (12).
3. An intelligent machine design classroom demonstration teaching aid according to claim 1, wherein: the worm gear and worm demonstration device comprises a first bevel gear (15), wherein the first bevel gear (15) is sleeved at the outer end of a corresponding elastic telescopic shaft (10), a third rotating shaft (16) is arranged at the position, corresponding to the first bevel gear (15), of the side surface of a sleeve (2), the third rotating shaft (16) is fixedly connected with the side surface of the sleeve (2) through a shaft seat (17), a second bevel gear (18) is sleeved at one end of the third rotating shaft (16), the first bevel gear (15) is mutually meshed with the second bevel gear (18), a third bevel gear (19) is sleeved at the other end of the third rotating shaft (16), a worm (20) is arranged at the position, corresponding to the third bevel gear (19), of the side surface of the sleeve (2), the worm (20) is fixedly connected with the side surface of the sleeve (2) through two second shaft seats (24), a fourth bevel gear (21) is sleeved at one end of the worm (20), and the fourth bevel gear (21) is mutually meshed with the third bevel gear (19), the side surface of the sleeve (2) is rotatably connected with a fifth rotating shaft (22) at a position corresponding to the worm (20), the fifth rotating shaft (22) is sleeved with a turbine (23), and the turbine (23) is meshed with the worm (20).
4. An intelligent machine design classroom demonstration teaching aid according to claim 1, wherein: cam presentation device include cam (25), cam (25) suit is on elastic telescopic shaft (10) that corresponds, sleeve (2) side corresponds position department fixed mounting backup pad (26) of cam, set up baffle (27) between backup pad (26) and cam (25), several guide bars (28) of baffle (27) side fixed mounting, guide bar (28) pass backup pad (26), fixed mounting spring (29) between baffle (27) and backup pad (26), baffle (27) and cam (25) side contact cooperation.
5. An intelligent machine design classroom demonstration teaching aid according to claim 1, wherein: the four-bar mechanism demonstration device comprises a crank (30), wherein the crank (30) is fixedly installed at the outer end of a corresponding elastic telescopic rod (10), a guide rail (31) is fixedly installed at the position, corresponding to the crank (30), of the side surface of a sleeve (2), a sliding block (32) is installed on the guide rail (31) in a matched mode, a rocker (33) is connected to the sliding block (32) in a rotating mode, the movable end of the rocker (33) is connected with the movable end of the crank (30) in a rotating mode through a connecting rod (34) in a rotating mode, a locking mechanism is arranged on the sliding block (32), the sliding block (32) cannot move on the guide rail (31) automatically through the locking mechanism, and the connecting rod (34) can be detached from a rotating shaft at the rotating connection position of the crank (30) and the rocker (33).
6. An intelligent machine design classroom demonstration teaching aid according to claim 2 or 3 or 4 or 5, wherein: elastic telescopic rod (10) movable rod side be close to the equal fixed mounting driving lever (35) of position department of disc (3) on right side, disc (3) medial surface on right side is close to front end department fixed mounting V font pole (36), and V font pole (36) opening towards first pivot (6), driving lever (35) side that is located the front side and the medial surface contact cooperation of V type pole (36).
7. An intelligent machine design classroom demonstration teaching aid according to claim 6, wherein: the outer side surface of the sleeve (2) is fixedly provided with a plurality of boosting rods (37) at equal intervals along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110611477.3A CN113487956A (en) | 2021-06-02 | 2021-06-02 | Intelligent mechanical design classroom demonstration teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110611477.3A CN113487956A (en) | 2021-06-02 | 2021-06-02 | Intelligent mechanical design classroom demonstration teaching aid |
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| CN113487956A true CN113487956A (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110611477.3A Withdrawn CN113487956A (en) | 2021-06-02 | 2021-06-02 | Intelligent mechanical design classroom demonstration teaching aid |
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| CN (1) | CN113487956A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115148082A (en) * | 2022-06-27 | 2022-10-04 | 北京航空航天大学 | A modularization teaching aid for demonstrating zoom and can open mechanism motion principle |
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| CN112692322A (en) * | 2020-12-03 | 2021-04-23 | 江苏曜曜机械科技有限公司 | Special multi-head drill for drilling from inside to outside |
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2021
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| CN203812488U (en) * | 2014-04-23 | 2014-09-03 | 湖北工业大学 | Rotary type multi-configuration machine demonstrating and experimenting table |
| CN104008700A (en) * | 2014-05-29 | 2014-08-27 | 长春理工大学 | Multifunctional linkage type box-type teaching aid capable of being unfolded |
| CN105913753A (en) * | 2016-06-02 | 2016-08-31 | 厦门理工学院 | Mechanical principle experiment teaching aid |
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Application publication date: 20211008 |