CN113314018A - Teaching display instrument - Google Patents
Teaching display instrument Download PDFInfo
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- CN113314018A CN113314018A CN202110757288.7A CN202110757288A CN113314018A CN 113314018 A CN113314018 A CN 113314018A CN 202110757288 A CN202110757288 A CN 202110757288A CN 113314018 A CN113314018 A CN 113314018A
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- gear
- gear shaft
- slider
- main body
- teaching display
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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)
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Abstract
The utility model provides a teaching display instrument, teaching display instrument includes the main part, the elastic component, the slider, gear shaft and gear train, the main part is equipped with the spout, the main part includes first terminal surface, first terminal surface is located the spout, the one end butt of elastic component in first terminal surface, the slider is connected with the elastic component, the slider is suitable for and slides in the spout, the gear shaft includes first gear shaft and second gear shaft, first gear shaft sets up in the main part, the second gear shaft sets up in the slider, the gear train includes first gear and second gear, first gear is installed in first gear shaft, the second gear is installed in second gear shaft. The application provides a teaching show instrument, gear install respectively in the first gear shaft of locating the main part and locate the second gear shaft of slider, can change the interval of two gear shafts through the slip slider, can demonstrate the gear meshing process vividly, lets the student understand the condition that the gear correctly meshed directly perceivedly.
Description
Technical Field
The application relates to the technical field of teaching aids, in particular to a teaching display instrument.
Background
The course explanation of present gear engagement is more abstract, and what mainly adopted is that video demonstration or animation simulation's mode lacks the demonstration object, and the student is difficult to produce audio-visual impression, and is not deep to the condition understanding of correct meshing between the gear, is difficult for producing the memory point.
Disclosure of Invention
The embodiment of the application provides a teaching display instrument to solve the technical problem.
The embodiment of the application realizes the aim through the following technical scheme.
The embodiment of the application provides a teaching display instrument, teaching display instrument includes the main part, the elastic component, the slider, gear shaft and gear train, the main part is equipped with the spout, the main part includes first terminal surface, first terminal surface is located the spout, the one end butt of elastic component in first terminal surface, the slider is connected with the elastic component, the slider is suitable for and slides in the spout, the gear shaft includes first gear shaft and second gear shaft, first gear shaft sets up in the main part, the second gear shaft sets up in the slider, the gear train includes first gear and second gear, first gear is installed in first gear shaft, the second gear is installed in the second gear shaft.
In an embodiment, the main part still includes the first surface, and the first surface is equipped with the scale mark, and the scale mark starting point corresponds the setting of first gear shaft, and the scale mark extends along the sliding direction of slider.
In one embodiment, the elastic element is a compression spring, and the elastic element is arranged on the surface of the sliding block, which faces away from the first gear shaft.
In one embodiment, the main body further comprises a main body guide rod, and the elastic member is sleeved on the main body guide rod.
In one embodiment, the slider is provided with a slider guide rod corresponding to the main body guide rod, and the elastic member is sleeved on the slider guide rod.
In one embodiment, the diameter of the first gear is smaller than the diameter of the second gear, and the modules of the first gear and the second gear are equal.
In one embodiment, the main body comprises a second end surface, the second end surface is located on the sliding groove, and when the sliding block is in contact with the second end surface, the distance between the first gear shaft and the second gear shaft is equal to the gear center distance when the first gear and the second gear are meshed.
In one embodiment, the diameter of the first gear is smaller than the diameter of the second gear, and the module of the second gear is larger than the module of the first gear.
In one embodiment, the resilient member is compressed when the second gear is engaged with the first gear.
In one embodiment, the body further comprises a base.
The application provides a teaching display instrument, the main part is equipped with the spout, and the slider slides in the spout. The first gear shaft is fixed in the main part, the second gear shaft is fixed in the slider, the slider is connected with the elastic component, the elastic component offsets between main part and slider, first gear is installed in first gear shaft, the second gear is installed in the second gear shaft, can promote the slider and slide the interval that changes between first gear shaft and the second gear shaft in the spout through external force, make first gear and second gear meshing, vividly demonstrate the gear meshing process, let the student understand the condition that the gear correctly meshed directly perceivedly.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 shows a schematic structural diagram of a teaching demonstration instrument provided in an embodiment of the present application.
Fig. 2 shows a partially disassembled schematic view of the teaching demonstration apparatus of fig. 1.
Fig. 3 shows a schematic view of a ratcheting interference diagram of the teaching demonstration apparatus provided in the embodiment of the present application.
Fig. 4 shows a schematic view of the teaching demonstration apparatus of the embodiment of fig. 3 in another state.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. 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 application.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
Referring to fig. 1 and 2 together, an embodiment of the present application provides a teaching display apparatus 100, the teaching display apparatus 100 includes a main body 11, an elastic member 12, a slider 13, a gear shaft 14 and a gear set 15, the main body 11 is provided with a sliding slot 110, the main body 11 includes a first end surface 120, the first end surface 120 is located in the sliding slot 110, one end of the elastic member 12 abuts against the first end surface 120, the slider 13 is connected with the elastic member 12, the slider 13 is suitable for sliding in the sliding slot 110, the gear shaft 14 includes a first gear shaft 141 and a second gear shaft 142, the first gear shaft 141 is disposed in the main body 11, the second gear shaft 142 is disposed in the slider 13, the gear set 15 includes a first gear 151 and a second gear 152, the first gear 151 is mounted on the first gear shaft 141, and the second gear 152 is mounted on the second gear shaft 142.
The main body 11 may be substantially rectangular, and the main body 11 may be made of a rigid material, such as a metal material or a rigid plastic, so that the main body 11 is not easily deformed and damaged and has a long service life. The main body 11 has a certain thickness to provide the slide groove 110.
In one embodiment, the body 11 further includes a first surface 130, and the first surface 130 is an appearance surface of the body 11. The first surface 130 is provided with a scale mark 131, the starting point of the scale mark 131 is arranged corresponding to the first gear shaft 141, and the scale mark 131 extends along the sliding direction of the slider 13. In one embodiment, the scale marks 131 may be disposed on the edge of the first surface 130 of the main body 11, so that the scale marks 131 are not hidden by gears during the demonstration process, and can be easily and intuitively read, and the unit of the scale marks 131 can be accurate to millimeter, or can be adaptively adjusted according to the size of the teaching demonstration instrument 100.
In one embodiment, the sliding groove 110 may be concavely disposed on the main body 11, the sliding groove 110 is concavely disposed on the first surface 130, in other embodiments, the sliding groove 110 may penetrate through the main body 11 to be in a through hole shape, when the sliding groove 110 is in a through hole shape, a limiting portion 1110 is disposed in the sliding groove 110 corresponding to a sliding track of the sliding block 13, the limiting portion 1110 may be disposed on an inner wall of the sliding groove 110, the limiting portion 1110 may be a strip-shaped groove and disposed on inner walls on two sides of the sliding groove 110, the disposing manner of the sliding groove 110 is not limited in this embodiment, and a function that the sliding block 13 can slide in the sliding groove 110 is achieved.
In one embodiment, the main body 11 includes a second end surface 140, the second end surface 140 is located on the sliding groove 110, and the sliding block 13 is in contact with the second end surface 140 without external force.
In one embodiment, the main body 11 further includes main body guide rods 150, and the number of the main body guide rods 150 may be set corresponding to the number of the elastic members 12, for example, the number of the main body guide rods 150 may be single, two, or more. Main part guide arm 150 sets up in first terminal surface 120, first terminal surface 120 is suitable for with elastic component 12 butt, main part guide arm 150 can be cylindrical, outstanding in first terminal surface 120 setting, main part guide arm 150 is suitable for to be established by the elastic component 12 cover, in order to prevent the displacement of elastic component 12, main part guide arm 150's diameter can slightly be less than the internal diameter of elastic component 12, and main part guide arm 150 can have a take the altitude, when making the elastic component 12 cover locate main part guide arm 150, elastic component 12 is difficult for deviating from main part guide arm 150, make the butt of elastic component 12 and main part 11 more stable, difficult displacement.
In one embodiment, the elastic member 12 is a compression spring, and two ends of the compression spring are respectively abutted against the slider 13 and the first end surface 120 of the main body 11 to provide thrust for the slider 13. Under the action of external force, the pressure spring can be compressed, and the length is shortened. In one embodiment, the elastic member 12 may also be a tension spring, one end of the elastic member 12 may be fixed to the second end surface 140 of the main body 11, the other end of the elastic member 12 is connected to the slider 13, and the elastic member 12 provides a tensile force to the slider 13, and the tension spring may be stretched and elongated by an external force.
The length of the slider 13 may match the width of the sliding slot 110, and the width of the slider 13 is smaller than the length of the sliding slot 110, so that the slider 13 can be accommodated by the sliding slot 110 and the slider 13 can slide in the sliding slot 110. The sliding block 13 is provided with a strip-shaped protrusion 1310 corresponding to the limiting portion 1110, the protrusion 1310 of the sliding block 13 is matched with the limiting portion 1110 of the sliding slot 110, and the protrusion 1310 is clamped on the limiting portion 1110, so that the sliding block 13 is not easy to fall off from the sliding slot 110. When the sliding block 13 is installed in the sliding groove 110, the surface of the sliding block 13 is flush with the first surface 130, and the arrangement is such that the sliding block 13 can slide smoothly in the sliding groove 110. The slider 13 is provided with a second gear shaft 142, the gear shaft 14 is provided on a surface of the slider 13 which is flush with the first surface 130, the second gear shaft 142 protrudes from the surface of the slider 13, and the second gear shaft 142 can be provided at a central position of the slider 13.
The slider 13 is connected with the elastic component 12, and is concrete, and when the elastic component 12 was the pressure spring, the elastic component 12 and the slider 13 butt, the elastic component 12 set up in the surface that the slider 13 deviates from first gear shaft 141. In one embodiment, the slider 13 is provided with a slider guide 135 corresponding to the main body guide 150, and the elastic member 12 is sleeved on the slider guide 135. The slider guides 135 may be disposed on the side wall of the slider 13 opposite to the first end surface 120, and the number and the positions of the slider guides 135 are set corresponding to those of the main body guides 150, for example, the number of the slider guides 135 may be single, two or more, and the axes of the slider guides 135 and the main body guides 150 coincide, so that the elastic member 12 can be extended and retracted smoothly without deviation. The structure of slider guide rod 135 can be the same with main part guide rod 150, slider 13 surface is located to slider guide rod 135 protruding, slider guide rod 135 can be for cylindrical, the diameter of slider guide rod 135 can slightly be less than the internal diameter of elastic component 12, and slider guide rod 135 can have a take the altitude for when slider guide rod 135 is located to elastic component 12 cover, elastic component 12 is difficult for deviating from slider guide rod 135, make the butt of elastic component 12 and slider 13 more stable, difficult displacement.
In one embodiment, the main body 11 further comprises a base 160, the base 160 is perpendicular to the first surface 130, and the base 160 is used for placing the teaching display apparatus 100, so that the teaching display apparatus 100 can be stably placed on a horizontal surface, such as a table or a table, to facilitate the teacher to use the teaching display apparatus 100 to engage with the peer demonstration gear.
The main body 11 is further provided with a first gear shaft 141, the first gear shaft 141 is provided on the first surface 130, and the first gear shaft 141 is fixed on one end of the first surface 130 of the main body 11 close to the base 160.
Referring to fig. 1, in one embodiment, the diameter of the first gear 151 is smaller than that of the second gear 152, and the modules of the first gear 151 and the second gear 152 are equal. When no external force acts, the slider 13 contacts the second end surface 140, so that the distance between the first gear shaft 141 and the second gear shaft 142 is fixed, the distance between the first gear shaft 141 and the second gear shaft 142 is equal to the gear center distance when the first gear 151 and the second gear 152 mesh, in the case that no external force acts on the slider, the first gear 151 is mounted on the first gear shaft 141, the second gear 152 is mounted on the second gear shaft 142, and the first gear 151 and the second gear 152 can mesh. Through the scale marks 131 arranged on the first surface 130, the center distance between the first gear 151 and the second gear 152, that is, the distance between the first gear shaft 141 and the second gear shaft 142 when the first gear 151 is engaged with the second gear 152 can be directly read.
Referring to fig. 3, in an embodiment, a diameter of the first gear 151 is smaller than a diameter of the second gear 152, a modulus of the second gear 152 is larger than a modulus of the first gear 151, when no external force is applied, the slider 13 abuts against the second end surface 140, and when the second gear 152 is mounted on the second gear shaft 142, since a distance between the first gear shaft 141 and the second gear shaft 142 is too small, the first gear 151 and the second gear 152 are in meshing interference, which means that a tooth surface of one of the gears exceeds an allowable movement limit due to insufficient necessary conditions for correct meshing during meshing, and a phenomenon theoretically crosses an opposite tooth surface thereof occurs, and at this time, a teacher can show the meshing interference phenomenon to students by means of the teaching demonstration instrument 100, so that the students can more intuitively and deeply understand the meshing interference phenomenon.
Referring to fig. 4, at this time, the slider 13 may slide along the sliding slot 110 under the pushing of an external force, the distance between the first gear shaft 141 and the second gear shaft 142 is increased, the tooth surfaces of the first gear 151 and the second gear 152 are aligned, and the meshing condition of the first gear 151 and the second gear 152 is checked, and the center distance between the first gear 151 and the second gear 152, that is, the distance between the first gear shaft 141 and the second gear shaft 142 at this time, may also be read through the scale mark 131 disposed on the first surface 130. At this time, the elastic member 12 is compressed, and the center distance between the first gear 151 and the second gear 152 is greater than the distance between the first gear shaft 141 and the second gear shaft 151 when the slider 13 abuts against the second end surface 140.
In the teaching and displaying process, a teacher can firstly install the first gear 151 on the first gear shaft 141, then install the second gear 152 with the same module as that of the first gear shaft 141 on the second gear shaft 142, check the meshing condition of the first gear 151 and the second gear 152, and read the center distance between the first gear 151 and the second gear 152, so that students can intuitively understand the conditions of correct meshing of the gears and correct meshing of the gears.
After the first meshing condition is displayed, the teacher can replace the second gear 152 with a gear with a module larger than that of the first gear 151, at this time, the second gear 152 and the first gear 151 have a meshing interference phenomenon, the sliding block 13 is pushed to move, tooth surfaces of the first gear 151 and the second gear 152 are aligned, the meshing condition of the two gears under the condition that the modules of the two gears are not equal is checked, and the center distance at this time can be read.
The teaching demonstration instrument 100 provided by the application has the advantages that the main body 11 is provided with the sliding groove 110, and the sliding block 13 slides in the sliding groove 110. The first gear shaft 141 is fixed to the main body 11, the second gear shaft 142 is fixed to the slider 13, the first gear 151 is mounted to the first gear shaft 141, the second gear 152 is mounted to the second gear shaft 142, and the distance between the first gear shaft 141 and the second gear shaft 142 can be changed by sliding the slider 13 in the sliding slot 110, so that the first gear 151 and the second gear 152 are engaged, the gear engagement process is vividly demonstrated, and students can intuitively understand the conditions for correct engagement of the gears.
Furthermore, the terms "first," "second," and the like are used merely for distinguishing between descriptions and not intended to imply or imply a particular structure. The description of the terms "some embodiments," "other embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this application, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this application can be combined and combined by those skilled in the art without contradiction.
The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should 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; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110757288.7A CN113314018A (en) | 2021-07-05 | 2021-07-05 | Teaching display instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110757288.7A CN113314018A (en) | 2021-07-05 | 2021-07-05 | Teaching display instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113314018A true CN113314018A (en) | 2021-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110757288.7A Pending CN113314018A (en) | 2021-07-05 | 2021-07-05 | Teaching display instrument |
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| CN (1) | CN113314018A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114299796A (en) * | 2022-02-28 | 2022-04-08 | 淮阴工学院 | A kind of mechanical transmission continuously variable speed science interactive exhibition and teaching equipment |
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| CN104948671A (en) * | 2015-07-03 | 2015-09-30 | 安庆联泰电子科技有限公司 | Interval-adjustable transmission mechanism |
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| TWM577942U (en) * | 2018-07-24 | 2019-05-11 | 周文祥 | Fast meshing measuring equipment for gear dual tooth flank |
| CN209015572U (en) * | 2018-08-31 | 2019-06-21 | 中原工学院 | A teaching aid for measuring parameters of involute gears |
| CN112581852A (en) * | 2020-11-27 | 2021-03-30 | 李江南 | Gear clamping simulation device |
| CN215679839U (en) * | 2021-07-05 | 2022-01-28 | 深圳技术大学 | Teaching display instrument |
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2021
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101520086A (en) * | 2009-04-17 | 2009-09-02 | 哈尔滨工程大学 | Sliding frame mechanism capable of reducing transmission idling of gears |
| CN104036684A (en) * | 2014-05-22 | 2014-09-10 | 杭州电子科技大学 | Typical transmission mechanism comprehensive demonstration teaching aid |
| CN104948671A (en) * | 2015-07-03 | 2015-09-30 | 安庆联泰电子科技有限公司 | Interval-adjustable transmission mechanism |
| CN206134095U (en) * | 2016-06-20 | 2017-04-26 | 武汉工程大学 | A teaching demonstration instrument for measuring the transmission ratio of meshing gears |
| CN208538399U (en) * | 2018-01-18 | 2019-02-22 | 中国民航大学 | A gear comprehensive experimental bench for teaching demonstration |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114299796A (en) * | 2022-02-28 | 2022-04-08 | 淮阴工学院 | A kind of mechanical transmission continuously variable speed science interactive exhibition and teaching equipment |
| CN114299796B (en) * | 2022-02-28 | 2023-12-01 | 淮阴工学院 | Mechanical transmission stepless speed change science popularization interaction exhibition teaching equipment |
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