CN220913776U - Gravity center and stability demonstration instrument - Google Patents
Gravity center and stability demonstration instrument Download PDFInfo
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- CN220913776U CN220913776U CN202321224156.9U CN202321224156U CN220913776U CN 220913776 U CN220913776 U CN 220913776U CN 202321224156 U CN202321224156 U CN 202321224156U CN 220913776 U CN220913776 U CN 220913776U
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- gravity center
- adjustable weight
- stability
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- 230000005484 gravity Effects 0.000 title claims abstract description 44
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The gravity center demonstration instrument comprises a horizontal rotating shaft, two supporting seats, a screw, a first adjustable weight and a second adjustable weight. The rotary shaft is provided with a demonstrator, the lower part of the demonstrator is provided with a counterweight structure, two supporting seats are arranged at intervals in the length direction of the horizontal rotary shaft, and two ends of the horizontal rotary shaft in the length direction are respectively connected with the supporting seats in a rotary manner; the screw penetrates through the demonstrator in the up-down direction, the screw intersects with the rotating shaft, a first adjustable weight is arranged on the part of the screw above the demonstration ship, and the first adjustable weight is in threaded connection with the screw so as to enable the first adjustable weight to move along the length direction of the screw; the second adjustable weight is arranged on the part of the screw below the demonstration boat and is in threaded connection with the screw so as to enable the first adjustable weight to move along the length direction of the screw. The dynamic demonstration device can dynamically demonstrate the relation between the gravity center and the stability.
Description
Technical Field
The utility model belongs to the technical field of teaching aids, and particularly relates to a gravity center and stability demonstration instrument.
Background
In the related art, the relationship between the gravity center and the stability is usually explained by adopting the principle of a tumbler, but the interpretation mode is limited, and only the low stability of the gravity center can be statically demonstrated, and the relationship between the gravity center and the stability cannot be dynamically demonstrated.
Disclosure of utility model
The present utility model aims to solve at least one of the technical problems in the related art to some extent.
For this reason, the embodiment of the utility model provides a gravity center and stability demonstration instrument.
The gravity center and stability demonstration instrument of the embodiment of the utility model comprises:
the horizontal rotating shaft is provided with a demonstrator, and the lower part of the demonstrator is provided with a counterweight structure so that the gravity center of the demonstrator is positioned below the rotating shaft;
The two support seats are arranged at intervals in the length direction of the horizontal rotating shaft, and two ends of the horizontal rotating shaft in the length direction are respectively connected with the support seats in a rotating manner;
A screw penetrating the demonstrator in the up-down direction, the screw intersecting the rotation axis,
A first adjustable weight is arranged on the part of the screw above the demonstration boat, and the first adjustable weight is in threaded connection with the screw so as to move along the length direction of the screw;
a second adjustable weight is arranged on a part of the screw below the demonstrator, and the second adjustable weight is in threaded connection with the screw so as to enable the first adjustable weight to move along the length direction of the screw.
In some embodiments, the first adjusting weight is a metal nut.
In some embodiments, the second adjusting weight is a metal nut.
In some embodiments, the counterweight structure of the presentation vessel includes a plurality of metal blocks.
In some embodiments, the plurality of metal blocks is at least one of an iron block, a copper block, and an aluminum block.
In some embodiments, the two supporting seats are a first bearing seat and a second bearing seat, the first bearing seat and the second bearing seat are arranged at intervals in the length direction of the rotating shaft, and the positions of the first bearing seat and the second bearing seat corresponding to the horizontal rotating shaft are respectively provided with a first bearing and a second bearing;
In some embodiments, the upper end of the first bearing seat has a first mounting notch for mounting the first bearing.
In some embodiments, the upper end of the first bearing seat has a second mounting notch for mounting a second bearing.
Drawings
FIG. 1 is a schematic diagram of a gravity center and stability demonstrator according to an embodiment of the utility model;
FIG. 2 is a view in direction A of FIG. 1;
Fig. 3 is a view in the direction B of fig. 1.
Reference numerals:
1. A horizontal rotation shaft; 2. a first bearing seat; 201. a first bearing; 202. a first notch; 3. a second bearing seat; 301. a second bearing; 302. a second notch; 4. a screw; 5. a first adjustable weight; 6. a second adjustable weight; 7. a demonstration boat; 701. a counterweight structure.
Detailed Description
Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
The gravity center and stability demonstrator of the embodiment of the utility model is described below with reference to fig. 1-3.
The gravity center demonstration instrument comprises a horizontal rotating shaft, two supporting seats, a screw, a first adjustable weight and a second adjustable weight.
The rotary shaft is provided with a demonstrator, and the lower part of the demonstrator is provided with a counterweight structure so that the gravity center of the demonstrator is positioned below the rotary shaft;
Optionally, the counterweight structure and the demonstrator can be split structures, and the counterweight structure can be connected with the demonstrator through an adhesive, so that the counterweight structure is convenient to manufacture.
It can be appreciated that the counterweight structure and the demonstrator can be an integral structure, and the specific arrangement form can be determined according to actual requirements.
The two supporting seats are arranged at intervals in the length direction of the horizontal rotating shaft, and the two ends of the horizontal rotating shaft in the length direction are respectively connected with the supporting seats in a rotating way;
the screw rod penetrates through the demonstrator in the up-down direction, the screw rod is intersected with the rotating shaft,
A first adjustable weight is arranged on the part of the screw above the demonstrator, and the first adjustable weight is in threaded connection with the screw so as to move along the length direction of the screw;
And a second adjustable weight is arranged on the part of the screw below the demonstrator, and the second adjustable weight is in threaded connection with the screw so as to enable the first adjustable weight to move along the length direction of the screw.
Optionally, the number of the first adjustable weight and the second weight may be multiple, and the specific number may be adaptively set according to the actual demonstration requirement.
According to the gravity center and stability demonstrator disclosed by the embodiment of the utility model, the gravity center of the demonstrator can be regulated by arranging the first adjustable weight and the second counterweight regulating block, so that the relation between the gravity center and the stability can be dynamically demonstrated by using the demonstrator.
The lower part of the demonstrator is provided with a counterweight structure, so that the gravity center of the demonstrator is always positioned below the horizontal rotation shaft, and therefore, the demonstrator can be in an upright state.
In order to avoid the influence of the screw on the gravity center position of the demonstrator, the length of the portion of the screw above the horizontal rotation axis is equal to the length of the portion of the screw below the horizontal rotation axis.
The first adjustable weight and the second adjustable weight are respectively arranged at the part of the screw above the demonstration ship and the part of the screw below the demonstration ship, and the first adjustable weight and the second adjustable weight are connected with the screw through threads, so that the first adjustable weight and the second adjustable weight can be moved in the length direction of the screw through rotation, and the position of the center of gravity of the demonstration in the up-down direction can be adjusted.
It will be appreciated that the position of the weight adjustment block on the screw can be adjusted such that the center of gravity of the presenter is located on the horizontal rotational axis. When the gravity center of the demonstrator is located on the horizontal rotation axis, the force is applied to the horizontal rotation axis anyway so that the horizontal rotation axis drives the demonstrator to rotate around the axis of the horizontal rotation axis, and the position where the demonstrator stops at least comprises the following two possibilities, namely that the counterweight structure of the demonstration ship is located above the horizontal rotation axis, and the counterweight structure of the demonstration ship is located below the horizontal rotation axis.
At this time, it may be determined that the position of the weight adjusting block on the screw is a position that enables the center of gravity of the presenter to be located on the horizontal rotational axis.
After the gravity center of the demonstrator is adjusted to the horizontal rotation axis, the demonstrator is in an upright state. It will be appreciated that the screw of the presenter is now in an upright position.
The influence of the gravity center and the stability is demonstrated by taking a demonstrator as an example of a demonstration ship and combining the following two modes.
First, rotate at least one of first adjustable pouring weight and second adjustable pouring weight for at least one of first adjustable pouring weight and second adjustable pouring weight moves upwards, from this, the focus of demonstration ship moves to the top of horizontal rotation axis by the axis of horizontal rotation axis, and the demonstration ship turns over downwards under the influence of focus position this moment, and the demonstration ship is the state of standing upside down.
And secondly, rotating at least one of the first adjustable weight and the second adjustable weight, so that at least one of the first adjustable weight and the second adjustable weight moves downwards, thereby the gravity center of the demonstration ship moves to the lower part of the horizontal rotating shaft from the axis of the horizontal rotating shaft, and under the influence of the gravity center position of the demonstration ship, the stopped state of the demonstration ship is the state that the gravity center of the demonstration ship is positioned below the horizontal rotating shaft no matter how the horizontal rotating shaft is rotated, namely, the demonstration ship is in an upright state.
Therefore, at least one of the first adjustable weight and the second adjustable weight moves up and down in the axial direction of the screw rod, so that the gravity center position of the demonstration ship is adjusted, when the gravity center of the demonstration ship is located above the horizontal rotating shaft, the horizontal rotating shaft is rotated anyway to drive the demonstration ship to rotate, and the stopped state of the demonstration ship is an inverted state.
When the gravity center of the demonstration boat is positioned below the horizontal rotating shaft, the demonstration boat is driven to rotate by rotating the horizontal rotating shaft anyway, and the stopped state of the demonstration boat is in an upright state.
Therefore, the gravity center position of the demonstration ship can be adjusted by adjusting the position of at least one of the first adjustable weight and the second adjustable weight, and then the relationship between the gravity center and the stability can be demonstrated. So that students can fully understand the relationship between the gravity center and the stability.
In some embodiments, the first adjusting weight is a metal nut.
In some embodiments, the second adjusting weight is a metal nut.
In some embodiments, the counterweight structure of the presentation vessel includes a plurality of metal blocks.
In some embodiments, the plurality of metal pieces is at least one of an iron piece, a copper piece, and an aluminum piece.
In some embodiments, the two supporting seats are a first bearing seat and a second bearing seat respectively, the first bearing seat and the second bearing seat are arranged at intervals in the length direction of the rotating shaft, and the positions of the corresponding first bearing seat and second bearing seat on the horizontal rotating shaft are provided with a first bearing and a second bearing respectively;
in some embodiments, the upper end of the first bearing housing has a first mounting notch for mounting the first bearing.
In some embodiments, the upper end of the first bearing seat has a second mounting notch for mounting a second bearing.
Through setting up first installation breach and second installation breach, be convenient for be fixed in first bearing frame and second bearing frame with horizontal rotation axis.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean 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 utility model. In this specification, schematic representations of the above terms are not necessarily directed 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, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (8)
1. A center of gravity and stability demonstrator, comprising:
the horizontal rotating shaft is provided with a demonstrator, and the lower part of the demonstrator is provided with a counterweight structure so that the gravity center of the demonstrator is positioned below the rotating shaft;
The two support seats are arranged at intervals in the length direction of the horizontal rotating shaft, and two ends of the horizontal rotating shaft in the length direction are respectively connected with the support seats in a rotating manner;
A screw penetrating the demonstrator in the up-down direction, the screw intersecting the rotation axis,
A first adjustable weight is arranged on the part of the screw above the demonstrator, and is in threaded connection with the screw so as to move along the length direction of the screw;
a second adjustable weight is arranged on a part of the screw below the demonstrator, and the second adjustable weight is in threaded connection with the screw so as to enable the first adjustable weight to move along the length direction of the screw.
2. The gravity center and stability demonstrator of claim 1, wherein the first adjusting weight is a metal nut.
3. The gravity center and stability demonstrator of claim 1, wherein the second adjusting weight is a metal nut.
4. The gravity center and stability demonstrator of claim 1, wherein the weight structure of the demonstrator includes a plurality of metal blocks.
5. The gravity center and stability demonstrator of claim 4, wherein the plurality of metal blocks are at least one of iron blocks, copper blocks and aluminum blocks.
6. The gravity center and stability demonstrator of claim 1, wherein the two supporting seats are a first bearing seat and a second bearing seat respectively, the first bearing seat and the second bearing seat are arranged at intervals in the length direction of the rotating shaft, and a first bearing and a second bearing are respectively arranged at positions of the first bearing seat and the second bearing seat corresponding to each other on the horizontal rotating shaft;
7. the gravity center and stability demonstrator of claim 6, wherein an upper end of the first bearing seat has a first mounting notch for mounting the first bearing.
8. The gravity center and stability demonstrator of claim 6, wherein an upper end of the first bearing seat has a second mounting notch for mounting a second bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321224156.9U CN220913776U (en) | 2023-05-19 | 2023-05-19 | Gravity center and stability demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321224156.9U CN220913776U (en) | 2023-05-19 | 2023-05-19 | Gravity center and stability demonstration instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220913776U true CN220913776U (en) | 2024-05-07 |
Family
ID=90903005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321224156.9U Active CN220913776U (en) | 2023-05-19 | 2023-05-19 | Gravity center and stability demonstration instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220913776U (en) |
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2023
- 2023-05-19 CN CN202321224156.9U patent/CN220913776U/en active Active
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