CN217384558U - Three-wire pendulum convenient to control pendulum angle size - Google Patents
Three-wire pendulum convenient to control pendulum angle size Download PDFInfo
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- CN217384558U CN217384558U CN202221076285.3U CN202221076285U CN217384558U CN 217384558 U CN217384558 U CN 217384558U CN 202221076285 U CN202221076285 U CN 202221076285U CN 217384558 U CN217384558 U CN 217384558U
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- pendulum
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- angle
- telescopic rod
- electric telescopic
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- 239000000725 suspension Substances 0.000 claims abstract description 10
- 238000005259 measurement Methods 0.000 abstract description 8
- 238000002474 experimental method Methods 0.000 abstract description 5
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 238000011160 research Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The application relates to a three-line pendulum convenient to control pendulum angle size, and relates to the field of rotary inertia measuring instruments. The three-line pendulum convenient for controlling the size of the pendulum angle comprises a support frame, an upper disc, three groups of suspension wires and a lower disc, wherein the lower disc is connected with the bottom of the upper disc through the three groups of suspension wires, and the top of the upper disc is connected to the support frame; the three-line pendulum convenient for controlling the size of the pendulum angle also comprises a pendulum angle control mechanism, and the pendulum angle control mechanism is positioned below the lower disc; the circumference lateral wall of lower disc still is connected with two sets of lantern rings at least, and two sets of lantern rings at least are evenly interval distribution about the axis of lower disc, and disc rotation under the pivot angle control mechanism drives through two sets of lantern rings at least. Through swing angle control mechanism and the swing joint of the lantern ring, can be in the experiment of three-wire pendulum measurement object inertia, the accurate control three-wire pendulum's swing angle size is favorable to experimental operation and inertia's accurate measurement to can study the influence of different swing angles size to the experimental result, further expand experimental research content.
Description
Technical Field
The application relates to the technical field of rotational inertia measuring instruments, in particular to a three-line pendulum convenient for controlling the size of a pendulum angle.
Background
A three-wire pendulum is a common mechanical experimental instrument for measuring the rotational inertia of an object and generally comprises an upper disc, a lower disc and three suspension wires connecting the upper disc and the lower disc.
In the related technology, the lower disc is used for placing an object to be measured, the moment of inertia of the object is measured by using the change of the front and back rotation period of the object to be measured, a theoretical formula used in an experiment requires that the lower disc of a three-line pendulum rotates at a small angle, and the swing angle is generally not more than 5 degrees.
However, the size of the swing angle of the conventional three-line pendulum cannot be accurately controlled in the experimental process, and the experimental error is easily increased due to the inappropriate size of the swing angle.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome the not enough that exists among the prior art, this application provides a three-wire pendulum convenient to control pivot angle size, and the technical problem that solve is how to the accurate control of pivot angle size of three-wire pendulum, and then avoids leading to experimental error's increase because of the pivot angle size is improper.
The technical scheme is as follows: in order to achieve the purpose, the technical scheme adopted by the application is as follows:
a three-wire pendulum convenient for controlling the size of a pendulum angle comprises a support frame, an upper disc, three groups of suspension wires and a lower disc, wherein the lower disc is connected with the bottom of the upper disc through the three groups of suspension wires, and the top of the upper disc is connected to the support frame;
the three-line pendulum convenient for controlling the size of the pendulum angle also comprises a pendulum angle control mechanism, and the pendulum angle control mechanism is positioned below the lower disc;
the circumference lateral wall of lower disc still is connected with two sets of at least lantern rings, two sets of at least lantern rings are about the even interval distribution of axis of lower disc, pivot control mechanism passes through two sets of at least lantern rings drive down the disc rotates.
In one possible implementation manner, the swing angle control mechanism comprises a disc seat, a rotating disc and at least two groups of electric telescopic rods;
the rotary table is rotationally connected to the disc seat, and the at least two groups of electric telescopic rods are connected to the rotary table;
the at least two groups of electric telescopic rods are uniformly distributed at intervals relative to the central axis of the turntable, the number of the electric telescopic rods corresponds to that of the lantern rings, and the positions of the electric telescopic rods correspond to those of the lantern rings;
the telescopic end of the electric telescopic rod is movably connected with the lantern ring.
In a possible implementation manner, a rotating shaft is vertically arranged at the center of the top of the disc seat, a through rotating shaft hole is formed in the center of the rotating disc, and the disc seat is rotatably connected with the rotating shaft hole of the rotating disc through the rotating shaft.
In a possible implementation manner, an angle scale is annularly arranged on the top edge of the disc seat, an angle scale line is arranged on the top edge of the rotating disc, and the position of the angle scale line corresponds to the position of the angle scale line.
In a possible implementation manner, the electric telescopic rod comprises a female telescopic rod and a male telescopic rod, the female telescopic rod is connected to the rotary table, the bottom of the male telescopic rod is in telescopic connection with the female telescopic rod, and the top of the male telescopic rod is movably connected with the lantern ring.
In a possible implementation, the radius of the turntable is smaller than the radius of the disc seat;
the outer diameter of the sub-telescopic rod is smaller than the inner diameter of the lantern ring.
In a possible implementation manner, the turntable is further provided with a control button, and the control button is electrically connected with the electric telescopic rod.
In a possible implementation manner, the supporting frame includes a bottom plate, a column and a cross brace, the column is connected to the bottom plate, and the column is perpendicular to the bottom plate;
the cross brace is connected with the top end of the upright column, the cross brace is parallel to the bottom plate, and the top of the upper disc is connected to the cross brace.
In one possible implementation, the number of the lantern rings and the number of the electric telescopic rods are two.
In a possible implementation manner, the electric telescopic rod is a direct current push rod, and the working voltage is DC 5V.
The beneficial effect that technical scheme that this application provided brought includes at least:
through swing angle control mechanism and the swing joint of the lantern ring, can be in the experiment of three-wire pendulum measurement object inertia, the accurate control three-wire pendulum's swing angle size is favorable to experimental operation and inertia's accurate measurement to can study the influence of different swing angles size to the experimental result, further expand experimental research content.
Drawings
The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiment(s) of the application and together with the description serve to explain the application and not limit the application. In the drawings:
FIG. 1 is a schematic diagram illustrating an overall structure of a three-wire pendulum for facilitating control of the magnitude of the pendulum angle provided by an exemplary embodiment of the present application;
FIG. 2 illustrates a top view of a lower disk of a three-wire pendulum for facilitating control of the amount of the pendulum angle provided by an exemplary embodiment of the present application;
FIG. 3 is a schematic diagram illustrating a swing angle control mechanism for a three-wire swing that facilitates control of the swing angle in accordance with an exemplary embodiment of the present application;
FIG. 4 illustrates a schematic top view of a swing angle control mechanism for a three-wire swing that facilitates controlling the amount of swing angle provided by an exemplary embodiment of the present application;
in the figure:
1. the three-line pendulum is convenient to control the size of the pendulum angle;
11. a support frame; 12. an upper disc; 13. a suspension wire; 14. a lower disc; 15. a collar; 16. a swing angle control mechanism;
111. a base plate; 112. a column; 113. a cross brace;
161. a disc seat; 162. a turntable; 163. an electric telescopic rod; 164. a control button;
1611. a rotating shaft; 1612. an angle scale;
1621. a rotating shaft hole; 1622. angle marking;
1631. a female telescopic rod; 1632. the sub-telescopic rod.
Detailed Description
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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the 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 present application will be further described with reference to the following drawings and examples.
Fig. 1 is a schematic diagram illustrating an overall structure of a three-wire pendulum convenient to control the swing angle according to an exemplary embodiment of the present application, where the three-wire pendulum 1 convenient to control the swing angle includes a support frame 11, an upper disc 12, three sets of suspension wires 13, and a lower disc 14, the lower disc 14 is connected to the bottom of the upper disc 12 through the three sets of suspension wires 13, and the top of the upper disc 12 is connected to the support frame 11; the three-line pendulum 1 convenient for controlling the size of the pendulum angle also comprises a pendulum angle control mechanism 16, and the pendulum angle control mechanism 16 is positioned below the lower disc 14; referring to fig. 2, at least two sets of lantern rings 15 are further connected to the circumferential side wall of the lower disc 14, the at least two sets of lantern rings 15 are uniformly distributed at intervals about the central axis of the lower disc 14, and the swing angle control mechanism 16 drives the lower disc 14 to rotate through the at least two sets of lantern rings 15.
In the embodiment of the application, the swing angle control mechanism 16 is movably connected with the lower disc 14, when the swing angle control mechanism 16 is in a working state, the swing angle control mechanism 16 drives the lower disc 14 to rotate to a preset angle and then loosen, the swing angle of the three-line pendulum is accurately controlled, and the experimental operation and the accurate measurement of the rotational inertia are facilitated. In one example, the number of collars 15 is two, and the collars 15 are symmetrically fixed to the edge of the lower disk 14 in one diameter direction.
In an alternative embodiment, referring to fig. 3 and 4, the swing angle control mechanism 16 includes a disc base 161, a turntable 162, and at least two sets of electric telescopic rods 163; the turntable 162 is rotatably connected to the disc seat 161, and the at least two groups of electric telescopic rods 163 are connected to the turntable 162; the at least two groups of electric telescopic rods 163 are uniformly distributed at intervals about the central axis of the turntable 162, the number of the electric telescopic rods 163 corresponds to the number of the lantern rings 15, and the positions of the electric telescopic rods 163 correspond to the positions of the lantern rings 15; the telescopic end of the electric telescopic rod 163 is movably connected with the lantern ring 15.
In this application embodiment, pivot angle control mechanism 16 is located disc 14 under, and when pivot angle control mechanism 16 was in operating condition, electric telescopic handle 163 stretched into in the hole of lantern ring 15, rotated on disc seat 161 through carousel 162, driven electric telescopic handle 163 and rotated, and electric telescopic handle 163 drives lantern ring 15 and rotates, and lantern ring 15 drives down disc 14 and rotates. In one example, the number of the electric telescopic rods 163 is two, and the central axes of the two electric telescopic rods 163 coincide with the central axes of the two sets of collars 15. In one example, the electric telescopic rod 163 is a direct current push rod, and the working voltage is DC 5V.
In an alternative embodiment, referring to fig. 3 and 4, a rotating shaft 1611 is vertically disposed at a top center position of the disc seat 161, a rotating shaft hole 1621 penetrates through a center position of the turntable 162, and the disc seat 161 is rotatably connected to the rotating shaft hole 1621 of the turntable 162 through the rotating shaft 1611.
In the embodiment of the present application, the outer diameter of the rotating shaft 1611 is smaller than the inner diameter of the rotating shaft hole 1621 so as to realize the rotational connection between the disc holder 161 and the turntable 162. In one example, the radius of the turntable 162 is less than the radius of the disc holder 161.
In an alternative embodiment, referring to FIG. 4, the top edge of the disc holder 161 is surrounded by an angle scale 1612, and the top edge of the turntable 162 has an angle scale 1622, the angle scale 1622 being positioned to correspond to the angle scale 1612.
In the embodiment of the application, the swing angle of the three-line pendulum is accurately controlled through the corresponding positions of the angle marking 1622 and the angle scale 1612.
In an alternative embodiment, referring to fig. 3, the electric telescopic rod 163 includes a primary telescopic rod 1631 and a secondary telescopic rod 1632, the primary telescopic rod 1631 is connected to the rotating disc 162, the bottom of the secondary telescopic rod 1632 is telescopically connected to the primary telescopic rod 1631, and the top of the secondary telescopic rod 1632 is movably connected to the lantern ring 15.
In the embodiment of the present application, the outer diameter of the sub-telescopic rod 1632 is smaller than the inner diameter of the sleeve ring 15, so as to smoothly extend into the inner hole of the sleeve ring 15. In one example, the turntable 162 further has a control button 164, and the control button 164 is electrically connected to the electric telescopic rod 163 for controlling the lifting of the electric telescopic rod 163.
In an alternative embodiment, referring to fig. 1, the supporting frame 11 includes a bottom plate 111, a vertical column 112 and a cross brace 113, the vertical column 112 is connected to the bottom plate 111, and the vertical column 112 is perpendicular to the bottom plate 111; the cross brace 113 is connected with the top end of the upright post 112, the cross brace 113 is parallel to the bottom plate 111, and the top of the upper disc 12 is connected with the cross brace 113.
In the embodiment of the present application, the swing angle control mechanism 16 is disposed on the bottom plate 111, the upright post 112 is connected to one side of the top of the bottom plate 111, and the cross brace 113 and the upright post 112 are in an inverted L shape.
Next, an operation principle of the three-wire pendulum according to the embodiment of the present application, which facilitates control of the swing angle, will be described.
When an experiment of measuring the rotational inertia of an object by a three-line pendulum is carried out, firstly, two groups of electric telescopic rods are lifted by a control button, and then two groups of sub telescopic rods are respectively penetrated into two groups of sleeve rings; then, rotating the turntable to a required initial swing angle position according to the indication of the angle scale; then the two groups of electric telescopic rods are descended through the control button, so that the two groups of sub telescopic rods are separated from the two groups of lantern rings, at the moment, the three-line pendulum starts to swing at a set initial swing angle, and the measurement of a swing period and the like can be carried out.
To sum up, this application can be in the experiment of three-wire pendulum measurement object inertia through swing angle control mechanism and the swing joint of the lantern ring, and the swing angle size of accurate control three-wire pendulum is favorable to experimental operation and inertia's accurate measurement to can study the influence of different swing angles size to the experimental result, further expand experimental research content.
The above is only the preferred embodiment of the present application, and it should be noted that: it will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the principles of the application, and such modifications and enhancements are intended to be included within the scope of the application.
Claims (10)
1. A three-line pendulum (1) convenient for controlling the size of a pendulum angle comprises a support frame (11), an upper disc (12), three groups of suspension wires (13) and a lower disc (14), wherein the lower disc (14) is connected with the bottom of the upper disc (12) through the three groups of suspension wires (13), and the top of the upper disc (12) is connected to the support frame (11);
the three-line pendulum (1) convenient for controlling the size of the pendulum angle further comprises a pendulum angle control mechanism (16), and the pendulum angle control mechanism (16) is positioned below the lower disc (14);
the circumference lateral wall of lower disc (14) still is connected with at least two sets of lantern rings (15), at least two sets of lantern rings (15) are about the even interval distribution of axis of lower disc (14), pivot control mechanism (16) pass through at least two sets of lantern rings (15) drive down disc (14) rotate.
2. The three-wire pendulum (1) of claim 1 wherein said pendulum angle control mechanism (16) comprises a disc seat (161), a turntable (162), and at least two sets of electric telescopic rods (163);
the turntable (162) is rotationally connected to the disc seat (161), and the at least two groups of electric telescopic rods (163) are connected to the turntable (162);
the at least two groups of electric telescopic rods (163) are uniformly distributed at intervals about a central axis of the rotating disc (162), the number of the electric telescopic rods (163) corresponds to the number of the lantern rings (15), and the positions of the electric telescopic rods (163) correspond to the positions of the lantern rings (15);
the telescopic end of the electric telescopic rod (163) is movably connected with the lantern ring (15).
3. The three-wire pendulum (1) convenient to control the pendulum angle according to claim 2, wherein a rotating shaft (1611) is vertically disposed at the top center position of the circular disc seat (161), a rotating shaft hole (1621) is disposed at the center position of the rotary disc (162), and the circular disc seat (161) is rotatably connected to the rotating shaft hole (1621) of the rotary disc (162) through the rotating shaft (1611).
4. The three-wire pendulum (1) facilitating the control of the pendulum angle magnitude according to claim 2, characterized in that the top edge of the disc seat (161) is surrounded by an angle scale (1612), the top edge of the turntable (162) has an angle scale (1622), and the position of the angle scale (1622) corresponds to the position of the angle scale (1612).
5. The three-wire pendulum (1) convenient to control the pendulum angle size of claim 2, characterized in that, the electric telescopic rod (163) comprises a female telescopic rod (1631) and a sub telescopic rod (1632), the female telescopic rod (1631) is connected to the rotary table (162), the bottom of the sub telescopic rod (1632) is telescopically connected with the female telescopic rod (1631), and the top of the sub telescopic rod (1632) is movably connected with the lantern ring (15).
6. The three-wire pendulum (1) facilitating the control of the amount of the pendulum angle of claim 5, characterized in that the radius of the turntable (162) is smaller than the radius of the disc seat (161);
the outer diameter of the sub-telescopic rod (1632) is smaller than the inner diameter of the lantern ring (15).
7. The three-wire pendulum (1) of claim 2, wherein the turntable (162) further comprises a control button (164), and the control button (164) is electrically connected to the electric telescopic rod (163).
8. The three-wire pendulum (1) convenient for controlling the pendulum angle according to any one of claims 1 to 7, wherein the supporting frame (11) comprises a bottom plate (111), a vertical column (112) and a cross brace (113), the vertical column (112) is connected to the bottom plate (111), and the vertical column (112) is perpendicular to the bottom plate (111);
the cross brace (113) is connected with the top end of the upright post (112), the cross brace (113) is parallel to the bottom plate (111), and the top of the upper disc (12) is connected to the cross brace (113).
9. The three-wire pendulum (1) of any one of claims 2 to 7, wherein the number of said straps (15) and said electric telescopic rod (163) is two.
10. The three-wire pendulum (1) with controllable pendulum angle according to any of claims 2 to 7, wherein the electric telescopic rod (163) is a direct current push rod, and the working voltage is DC 5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221076285.3U CN217384558U (en) | 2022-05-07 | 2022-05-07 | Three-wire pendulum convenient to control pendulum angle size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221076285.3U CN217384558U (en) | 2022-05-07 | 2022-05-07 | Three-wire pendulum convenient to control pendulum angle size |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217384558U true CN217384558U (en) | 2022-09-06 |
Family
ID=83085816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221076285.3U Expired - Fee Related CN217384558U (en) | 2022-05-07 | 2022-05-07 | Three-wire pendulum convenient to control pendulum angle size |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217384558U (en) |
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2022
- 2022-05-07 CN CN202221076285.3U patent/CN217384558U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220906 |