Experiment teaching device for verifying circular motion law

Abstract

The utility model relates to the technical field of experiment teaching, in particular to an experiment teaching device for verifying a circular motion law, which comprises a base, three annular limiting cylinders are fixedly arranged at the top of the base, the diameters and heights of the three annular limiting cylinders are different, pressure sensors are fixedly embedded in the three annular limiting cylinders, and the pressure sensors are arranged on the base. The tops of the three annular limiting cylinders are fixedly provided with displayers through vertical mounting columns, the displayers are electrically connected with the pressure sensors, a lifting rotary type propelling adjusting assembly is fixedly embedded in the base, a connecting block is mounted on the lifting rotary type propelling adjusting assembly, and a limiting block is mounted on the connecting block. The limiting block is fixedly connected with the connecting block through a plug-in type connecting assembly, a placement groove is formed in the limiting block, and an experiment ball is arranged in the placement groove; according to the utility model, the relation between the diameter and mass of circular motion of an object and centripetal force can be visually displayed, and students can deeply understand related concepts and principles of circular motion.

Description

Technical Field

[0001] The utility model specifically relates to an experimental teaching device for verifying the law of circular motion, belonging to the technical field of experimental teaching. Background Technique

[0002] Circular motion is a form of motion in which an object moves along a circular trajectory. In physics and engineering, the study of circular motion is very important because it involves a variety of practical applications, such as mechanical motion, celestial motion, electron motion, etc. The study of circular motion involves multiple fields such as mechanics, dynamics, electromagnetism, and astrophysics, so the study of circular motion is also interdisciplinary. In the engineering field, the study of circular motion can be applied to mechanical transmission, aerospace, electronic equipment, etc., and is of great significance for designing and optimizing systems.

[0003] At the same time, as the content of high school physics teaching, it is one of the important basic motion forms in the field of basic physics, involving many basic physical concepts and practical applications, and occupies a crucial position in high school physics teaching. By analyzing circular motion, students can understand concepts such as angle, angular velocity, angular acceleration, and centripetal force of an object, which is crucial for establishing a profound understanding of motion. However, most of the existing teaching methods are derived through physical formulas combined with mathematical formulas, which may seem obscure and difficult to understand for beginners, and it is not easy to understand the meaning and derivation process of the conclusion, making it impossible for beginners to more intuitively understand the relevant conclusion.

[0004] In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0005] The purpose of the present utility model is to provide an experimental teaching device for verifying the law of circular motion in order to solve the above problems, which has the advantages of being able to intuitively display the relationship between the diameter, mass, and centripetal force of an object's circular motion on a display, and helping students to more deeply understand the relevant concepts and principles of circular motion.

[0006] The present utility model achieves the above object through the following technical solutions. An experimental teaching device for verifying the law of circular motion includes a base. A circular limiting cylinder is fixedly installed on the top of the base. The number of circular limiting cylinders is three, and the diameters and heights of the three circular limiting cylinders are different. Pressure sensors are fixedly embedded in all three circular limiting cylinders. Displays are fixedly installed on the tops of the three circular limiting cylinders through the vertical installation columns, and the displays are electrically connected to the pressure sensors. An elevating, rotating and pushing adjustment assembly is fixedly embedded in the base. A connecting block is installed on the elevating, rotating and pushing adjustment assembly. A limiting block is installed on the connecting block, and the limiting block is fixedly connected to the connecting block through the plug-in connection assembly. A placement groove is provided on the limiting block, and an experimental ball is arranged in the placement groove. The experimental ball is connected to the inner wall of one end of the placement groove through a connecting rope.

[0007] Further, in order to drive the vertical telescopic rod and the horizontal mounting block to rotate by controlling the driving motor to start, and at the same time drive the horizontal mounting block to move up and down by controlling the telescopic movement of the vertical telescopic rod, the elevating, rotating and pushing adjustment assembly includes the driving motor and the horizontal mounting block. The driving motor is fixedly embedded in the base. A vertical telescopic rod is fixed on the output shaft of the driving motor. The horizontal mounting block is fixed at the telescopic end of the vertical telescopic rod.

[0008] Further, in order to enable the driving threaded rod to rotate in the horizontal limiting groove through the rotating joint by controlling the servo motor to start, a horizontal limiting groove is provided on the horizontal mounting block. A servo motor is fixedly installed on the inner wall of one end of the horizontal limiting groove. The driving threaded rod is rotatably installed on the inner wall of the other end of the horizontal limiting groove through the rotating joint. One end of the driving threaded rod is fixedly connected to the output shaft of the servo motor.

[0009] Further, in order to drive the threaded slider to slide in the horizontal limiting groove by controlling the driving screw rod to rotate, so as to drive the connecting block to move through the L-shaped connecting rod, the driving threaded rod is provided with the threaded slider. The threaded slider is slidably clamped in the horizontal limiting groove. The connecting block is fixed on the threaded slider through the L-shaped connecting rod.

[0010] Further, in order to enable the limiting block and the connecting block to be connected to each other through the clamping block and the clamping seat, the plug-in connection assembly includes the clamping block, the clamping seat and the L-shaped mounting plate. The clamping block is fixed at one end of the limiting block. The clamping seats are fixedly installed at both ends of the connecting block. The limiting block is clamped on the clamping seat through the clamping block.

[0011] Furthermore, in order to enable the snap block to be fixedly connected to the snap seat through the connecting pin rod, the L-shaped mounting plate is fixed on the connecting block, and one end of the L-shaped mounting plate is slidably mounted with the connecting pin rod, and one end of the connecting pin rod is inserted into the connecting pin holes correspondingly opened in the snap block and the snap seat.

[0012] Furthermore, in order to enable the connecting pin rod to slide on the L-shaped mounting plate through the lifting handle, the lifting handle is fixedly mounted at the other end of the connecting pin rod.

[0013] Furthermore, in order to enable the connecting pin rod to be fixedly inserted into the connecting pin hole through the limiting ring by means of the connecting spring, the limiting ring is fixedly sleeved on the connecting pin rod, and the limiting ring is elastically connected to the inner wall of one end of the L-shaped mounting plate through the connecting spring.

[0014] The technical effects and advantages of the present utility model: Through the lifting and rotating type propulsion adjustment assembly, the experimental ball can be driven to perform circular motion on the inner walls of three annular limiting cylinders with different diameters. At the same time, through the plug-in type connection assembly, experimental balls with different masses can be replaced for experimental operations, and the relationship between the diameter, mass and centripetal force of the circular motion of the object can be intuitively displayed on the display, which helps students to more deeply understand the relevant concepts and principles of circular motion, is flexible and convenient to use, and has stronger practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 It is a schematic diagram of the installation structure of the horizontal mounting block of the present utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the lifting and rotating type propulsion adjustment assembly of the present utility model;

[0018] Figure 4 It is a schematic diagram of the installation structure of the snap block of the present utility model;

[0019] Figure 5 It is a schematic diagram of the installation structure of the snap seat of the present utility model;

[0020] Figure 6 It is a schematic diagram of the installation structure of the connecting pin rod of the present utility model;

[0021] In the figure: 1, base; 2, annular limiting cylinder; 3, pressure sensor; 4, vertical mounting column; 5, display; 6, lifting, rotating and pushing adjustment assembly; 601, drive motor; 602, horizontal mounting block; 603, vertical telescopic rod; 604, servo motor; 605, rotating joint; 606, drive threaded rod; 607, threaded slider; 608, L-shaped connecting rod; 7, connecting block; 8, limiting block; 9, plug-in connection assembly; 901, clamping block; 902, clamping seat; 903, L-shaped mounting plate; 904, connecting pin rod; 905, lifting handle; 906, limiting ring; 907, connecting spring; 10, experimental ball; 11, connecting rope. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-6 As shown, an experimental teaching device for verifying the law of circular motion includes a base 1. A circular limiting cylinder 2 is fixedly installed on the top of the base 1. The number of the circular limiting cylinders 2 is three. The diameters and heights of the three circular limiting cylinders 2 are different. Pressure sensors 3 are fixedly embedded in all three circular limiting cylinders 2. Displays 5 are fixedly installed on the tops of the three circular limiting cylinders 2 through vertical mounting columns 4, and the displays 5 are electrically connected to the pressure sensors 3, so as to enable the displays 5 to display the pressure data of the pressure sensors 3. A lifting, rotating and pushing adjustment assembly 6 is fixedly embedded in the base 1. A connecting block 7 is installed on the lifting, rotating and pushing adjustment assembly 6. A limiting block 8 is installed on the connecting block 7, and the limiting block 8 is fixedly connected to the connecting block 7 through a plug-in connection assembly 9. A placement groove is formed in the limiting block 8, and an experimental ball 10 is arranged in the placement groove. Through the lifting, rotating and pushing adjustment assembly 6, the horizontal position and height of the experimental ball 10 can be adjusted, so that the experimental ball 10 contacts the inner walls of the three circular limiting cylinders 2 respectively during the movement process. The experimental ball 10 is connected to the inner wall of one end of the placement groove through a connecting rope 11, so as to prevent the experimental ball 10 from falling out of the placement groove.

[0024] The lifting and rotating propulsion adjustment assembly 6 includes a driving motor 601 and a horizontal mounting block 602. The driving motor 601 is fixedly embedded in the base 1. A vertical telescopic rod 603 is fixed on the output shaft of the driving motor 601. The horizontal mounting block 602 is fixed at the telescopic end of the vertical telescopic rod 603. A horizontal limiting groove is provided on the horizontal mounting block 602. A servo motor 604 is fixedly installed on the inner wall at one end of the horizontal limiting groove. A driving threaded rod 606 is rotatably installed on the inner wall at the other end of the horizontal limiting groove through a rotating joint 605. One end of the driving threaded rod 606 is fixedly connected to the output shaft of the servo motor 604. A threaded slider 607 is installed on the driving threaded rod 606. The threaded slider 607 is slidably clamped in the horizontal limiting groove. The connecting block 7 is fixed to the threaded slider 607 through an L-shaped connecting rod 608. During use, control the servo motor 604 to start, so that the driving threaded rod 606 rotates in the horizontal limiting groove through the rotating joint 605, driving the threaded slider 607 to slide in the horizontal limiting groove, so as to drive the connecting block 7 to move horizontally through the L-shaped connecting rod 608. At the same time, control the driving motor 601 and the vertical telescopic rod 603 to drive the connecting block 7 to rotate and lift.

[0025] The plug-in connection assembly 9 includes a clamping block 901, a clamping seat 902 and an L-shaped mounting plate 903. The clamping block 901 is fixed at one end of the limiting block 8. The clamping seat 902 is fixedly installed at both ends of the connecting block 7. The limiting block 8 is clamped on the clamping seat 902 through the clamping block 901. The L-shaped mounting plate 903 is fixed on the connecting block 7. A connecting pin rod 904 is slidably installed at one end of the L-shaped mounting plate 903. One end of the connecting pin rod 904 is inserted into a connecting pin hole correspondingly provided on the clamping block 901 and the clamping seat 902. A lifting handle 905 is fixedly installed at the other end of the connecting pin rod 904. A limiting ring 906 is fixedly sleeved on the connecting pin rod 904. The limiting ring 906 is elastically connected to the inner wall at one end of the L-shaped mounting plate 903 through a connecting spring 907. Under the action of the connecting spring 907, the limiting ring 906 drives the connecting pin rod 904 to be fixedly inserted into the connecting pin hole, so that the clamping block 901 is fixedly connected to the clamping seat 902, so as to fix the limiting block 8 on the connecting block 7. At the same time, control the lifting handle, so that the connecting pin rod 904 slides on the L-shaped mounting plate 903, so that the connecting pin rod 904 disengages from the connecting pin hole, so as to separate the clamping block 901 from the clamping seat 902, realizing the flexible disassembly and assembly of the limiting block 8 on the connecting block 7 and facilitating the replacement of the limiting block 8.

[0026] When the utility model is in use, the limit block 8 is fixed on the connection block 7 through the plug-in connection component 9, and the lifting, rotating and pushing adjustment component 6 is controlled to drive the limit block 8 and the connection block 7 to move horizontally, so that the experimental ball 10 contacts the inner walls of the three annular limit cylinders 2 respectively, and the experimental ball 10 is driven to do circular motion by the lifting, rotating and pushing adjustment component 6. During the circular motion of the experimental ball 10, centripetal force is generated to press the pressure sensor 3, so that the display 5 displays the data of the pressure sensors 3 in the three annular limit cylinders 2, more intuitively showing the physical relationship between the diameter of the circular motion of the experimental ball 10 and the centripetal force. In this embodiment, the pressure sensor 3 is a voltage output type pressure sensor, and the model is KP01; the model of the display 6 is Lenovo M15. At the same time, the plug-in connection component 9 is used to facilitate the replacement of the experimental ball 10, so as to show the physical relationship between the mass of the experimental ball 10 and the centripetal force, and the use is more flexible and convenient.

[0027] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed claim.

[0028] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An experimental teaching device for verifying the law of circular motion, comprising a base (1), characterized in that: An annular limiting cylinder (2) is fixedly installed on the top of the base (1). The number of the annular limiting cylinders (2) is three. The diameters and heights of the three annular limiting cylinders (2) are different. A pressure sensor (3) is fixedly installed in each of the three annular limiting cylinders (2). A display (5) is fixedly installed on the top of each of the three annular limiting cylinders (2) via a vertical mounting column (4). The display (5) is electrically connected to the pressure sensor (3). A lifting and rotating propulsion adjustment component (6) is fixedly installed in the base (1). A connecting block (7) is installed on the lifting and rotating propulsion adjustment component (6). A limiting block (8) is installed on the connecting block (7). The limiting block (8) is fixedly connected to the connecting block (7) via a plug-in connecting component (9). A placement groove is provided on the limiting block (8). An experimental ball (10) is arranged in the placement groove. The experimental ball (10) is connected to the inner wall of one end of the placement groove via a connecting rope (11).

2. The experimental teaching device for verifying the law of circular motion according to claim 1, characterized in that: The lifting and rotating propulsion adjustment component (6) comprises a driving motor (601) and a transverse mounting block (602); the driving motor (601) is fixedly embedded in the base (1); a vertical telescopic rod (603) is fixed on the output shaft of the driving motor (601); and the transverse mounting block (602) is fixed to the telescopic end of the vertical telescopic rod (603).

3. The experimental teaching device for verifying the law of circular motion according to claim 2, characterized in that: The transverse mounting block (602) is provided with a transverse limiting groove, a servo motor (604) is fixedly mounted on the inner wall at one end of the transverse limiting groove, a driving threaded rod (606) is rotatably mounted on the inner wall at the other end of the transverse limiting groove via a rotating joint (605), and one end of the driving threaded rod (606) is fixedly connected to the output shaft of the servo motor (604).

4. The experimental teaching device for verifying the law of circular motion according to claim 3, characterized in that: A threaded slider (607) is installed on the driving threaded rod (606), and the threaded slider (607) is slidably engaged in the transverse limiting groove, and the connecting block (7) is fixed on the threaded slider (607) via an L-shaped connecting rod (608).

5. The experimental teaching device for verifying the law of circular motion according to claim 1, characterized in that: The plug-in connection assembly (9) comprises a clamping block (901), a clamping seat (902) and an L-shaped mounting plate (903); the clamping block (901) is fixed to one end of the limit block (8); the clamping seat (902) is fixedly mounted on both ends of the connection block (7); and the limit block (8) is clamped to the clamping seat (902) via the clamping block (901).

6. The experimental teaching device for verifying the law of circular motion according to claim 5, characterized in that: The L-shaped mounting plate (903) is fixed on the connecting block (7), and a connecting pin rod (904) is slidably mounted on one end of the L-shaped mounting plate (903), and one end of the connecting pin rod (904) is inserted into the connecting pin holes correspondingly opened on the clamping block (901) and the clamping seat (902).

7. The experimental teaching device for verifying the law of circular motion according to claim 6, characterized in that: A lifting handle (905) is fixedly mounted on the other end of the connecting pin rod (904).

8. The experimental teaching device for verifying the law of circular motion according to claim 7, characterized in that: A limiting ring (906) is fixedly sleeved on the connecting pin rod (904), and the limiting ring (906) is elastically connected to the inner wall of one end of the L-shaped mounting plate (903) through a connecting spring (907).

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