CN216450266U

CN216450266U - Friction experimental device for physical experiment

Info

Publication number: CN216450266U
Application number: CN202122943421.6U
Authority: CN
Inventors: 李铭
Original assignee: Jiamusi University
Current assignee: Jiamusi University
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-05-06
Anticipated expiration: 2031-11-26

Abstract

The application discloses frictional force experimental apparatus of physics experiment, including the iron core piece, long flat case, the long area of mat surface, motor, backing plate, hold inflator, cylinder, deflector roll, electromagnet assembly and ball. This application is rational in infrastructure, can be located the bar concave surface as the friction contact face in order with the surface area of six different roughness on the rough surface is long area, can carry out the control of stretching out and drawing back to the cylinder, reach the effect of carrying out the push-and-pull to long flat case, do benefit to and change inclination, be convenient for carry out the friction experiment of different domatic angles, it is fast slow at the speed that moves down of different rough areas to be convenient for observe the object, switch on the electro-magnet subassembly simultaneously and produce the magnetism of magnetic field with the different degree to the iron core piece, play the effect that the simulation object increased weight.

Description

Friction experimental device for physical experiment

Technical Field

The application relates to the field of physical experiments, in particular to a friction force experiment device for physical experiments.

Background

The physical experiment course is an independent essential basic course for higher science and technology colleges, is the beginning of systematic experiment training after students in science and technology colleges enter, and enables the students to be systematically and strictly trained in basic theories, methods, skills and the like of experiments through the learning of the course, so that the experiment skills and innovation capability are continuously improved.

The object has different translation rate in the removal face of different materials, and the speed that the object of different weight removed the face and remove simultaneously also has respectively different to need experiment analysis, the experiment demand under the multiple situation can't be satisfied to the friction experiment teaching aid of simplex structure. Therefore, a friction force experiment device for physical experiments is provided for solving the problems.

Disclosure of Invention

The friction force experiment device for the physical experiment is provided in the embodiment to solve the problems in the prior art.

According to an aspect of the application, a frictional force experimental apparatus of physics experiment is provided, including iron core piece, long flat case, the long area of mat face, motor, backing plate, hand inflator, cylinder, deflector roll, electromagnet assembly and ball, the iron core piece is installed at short flat case bottom intermediate position, and iron core piece bottom surface with lie in the long corresponding position contact in the long area surface of mat face of bar concave, two bar holes that correspond are worn to the long area of mat face, two deflector rolls are installed in the long flat case symmetry rotation, and take the mutual transmission connection through the mat face between two deflector rolls, the axostylus axostyle end of motor is connected with the transmission structure end of one of them deflector roll one end, the push rod end and the long flat case back of cylinder correspond position swing joint, and the cylinder holds the inflator through the air duct and be connected, the electromagnet assembly sets up at plastics long frame top surface, the ball rolling joints are connected in the corresponding joint grooves.

Furthermore, the surface of the rough surface long belt is provided with six surface areas with different roughness degrees, and the width of each surface area with the roughness degree is consistent with the inner width of the strip-shaped concave surface.

Furthermore, the inside of the long flat box is communicated with the inside of the strip-shaped concave surface through a strip-shaped hole, and two movable connecting grooves are symmetrically formed in one end of the back surface of the long flat box.

Further, the cylinder is installed on one side of the top surface of the base plate, and one end of the base plate is movably connected with the corresponding movable connecting groove through a movable connecting piece.

Further, strip-shaped sliding grooves are formed in two sides of the top of the long flat box, a round concave surface is formed in one side of the end face of one end of the long flat box, and the round concave surface is fixedly connected with the motor.

Further, the slider is all installed at short slat bottom both ends, and three linking groove has been seted up to slider bottom equidistance.

Furthermore, both sides of the sliding block are in sliding contact with both sides in the strip-shaped sliding groove, and the bottom of the sliding block is in rolling contact with the groove bottom in the strip-shaped sliding groove through a ball.

Furthermore, an electric control assembly is arranged inside the plastic long frame, and one end port of the plastic long frame is communicated with the end face of the other end of the long flat box.

Furthermore, the plastic long frame is fixedly arranged in the middle of the inside of the long flat box.

Furthermore, the motor and the electromagnet assembly are electrically connected with the corresponding electric control assembly in the plastic long frame through leads.

Through the above-mentioned embodiment of this application, can be located the bar concave surface in order as the friction contact face with the surface area of the six different roughness on the rough surface is long, can carry out telescopic control to the cylinder, reach the effect of carrying out the push-and-pull to long flat case, do benefit to and change inclination, be convenient for carry out the friction experiment of different domatic angles, be convenient for observe the object at the speed of moving down in different rough areas, switch on electromagnet assembly simultaneously and produce magnetic field and inhale with the magnetism of different degrees to the iron core piece, play the effect that the simulation object increased weight.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a perspective view of the overall structure of one embodiment of the present application;

FIG. 2 is a cross-sectional view of an elongated flat box structure according to one embodiment of the present application;

fig. 3 is a schematic view of a connection structure of the short strip plate and the core block according to an embodiment of the present application.

In the figure: 1. short ribbon boards; 2. a core block; 3. a slider; 4. a long flat box; 5. a strip-shaped chute; 6. a strip-shaped concave surface; 7. long belt with rough surface; 8. a strip-shaped hole; 9. a round concave surface; 10. a motor; 11. a movable connecting groove; 12. a movable connecting piece; 13. a base plate; 14. holding the inflator by hand; 15. an air duct; 16. a cylinder; 17. a guide roller; 18. a plastic long frame; 19. an electronic control assembly; 20. an electromagnet assembly; 21. a joining groove; 22. and a ball.

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, and it is obvious that the described embodiments are only partial embodiments of the present application, but 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.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The friction force experiment device in the present embodiment may be applied to a physical friction experiment, for example, the following test stand for a high school physics experiment is provided in the present embodiment.

This kind of test bench for high school physics experiments, including bottom fixed suction cup, handle, fixed supply socket and conduit, the test bench main part is installed to bottom fixed suction cup top, test bench main part internally mounted has plug-type drawer, plug-type drawer one side is installed the handle, plug-type drawer top is provided with the test bench desktop, liquid crystal display is installed to test bench desktop top, the physics experiment ammeter is installed to liquid crystal display one side, physics experiment ammeter one side is provided with fixed supply socket, the keyboard rack is installed to test bench desktop below, fixed supply socket one side is provided with the debris storage tank, and beneficial effect lies in: simple structure, design benefit provides functions such as fixed power jack and water pipe for a table is multi-purpose, saves limited teaching resource.

The test bed for high school physics experiments is a Chinese utility model patent (application number: CN201820420758.4), and the rough surface long belt in the application can be used as the surface of the test bed main body for friction experiments.

The friction force experiment device according to the embodiment of the present application is described below.

Referring to fig. 1-3, a friction force testing device for physical experiments comprises a core block 2, a long flat case 4, a rough surface long belt 7, a motor 10, a backing plate 13, a hand-held air cylinder 14, an air cylinder 16, guide rollers 17, an electromagnet assembly 20 and balls 22, wherein the core block 2 is installed at the middle position of the bottom of a short block, the bottom surface of the core block 2 is in contact with the corresponding position of the rough surface long belt 7 in the strip-shaped concave surface 6, the rough surface long belt 7 passes through two corresponding strip-shaped holes 8, two guide rollers 17 are symmetrically and rotatably installed in the long flat case 4, the two guide rollers 17 are mutually connected through the rough surface long belt 7 in a transmission manner, the shaft rod end of the motor 10 is connected with the transmission structure end of one guide roller 17, the push rod end of the air cylinder 16 is movably connected with the corresponding position of the back surface of the long flat case 4, the air cylinder 16 is connected with the hand-held air cylinder 14 through an air duct 15, the electromagnet assembly 20 is arranged on the top surface of the plastic long frame 18, and the balls 22 are in rolling engagement in the corresponding engagement grooves 21.

The surface of the rough surface long belt 7 is provided with six surface areas with different roughness degrees, and the width of each surface area with the roughness degree is consistent with the inner width of the strip-shaped concave surface 6; the inside of the long and flat box 4 is communicated with the inside of the strip-shaped concave surface 6 through a strip-shaped hole 8, and one end of the back surface of the long and flat box 4 is symmetrically provided with two movable connecting grooves 11; the cylinder 16 is arranged on one side of the top surface of the backing plate 13, and one end of the backing plate 13 is movably connected with the corresponding movable connecting groove 11 through a movable connecting piece 12; the two sides of the top of the long flat box 4 are both provided with strip-shaped sliding grooves 5, one side of the end face of one end of the long flat box 4 is provided with a round concave surface 9, and the inside of the round concave surface 9 is fixedly connected with a motor 10; the two ends of the bottom of the short batten 1 are both provided with sliding blocks 3, and the bottom of each sliding block 3 is provided with three connecting grooves 21 at equal intervals; two sides of the sliding block 3 are in sliding contact with two sides in the strip-shaped sliding groove 5, and the bottom of the sliding block 3 is in rolling contact with the bottom of the strip-shaped sliding groove 5 through the rolling balls 22; an electric control assembly 19 is arranged in the plastic long frame 18, and a port at one end of the plastic long frame 18 is communicated with the end face at the other end of the long flat box 4; the plastic long frame 18 is fixedly arranged in the middle inside the long flat box 4; the motor 10 and the electromagnet assembly 20 are electrically connected with the corresponding electric control assembly 19 in the plastic long frame 18 through wires.

When the friction contact type rough surface belt is used, six surface regions with different roughness degrees are arranged on the rough surface long belt 7, experiments with different friction degrees can be carried out, the motor 10 is operated to drive the guide roller 17 to rotate, and the six surface regions with different roughness degrees on the rough surface long belt 7 can be orderly positioned in the strip-shaped concave surface 6 to serve as friction contact surfaces;

the cylinder 16 can be controlled to stretch by continuously holding the hand-held air cylinder 14 or deflating the hand-held air cylinder, so that the effect of pushing and pulling the long flat box 4 is achieved, the inclination angle can be changed conveniently, and friction experiments of different slope angles can be performed conveniently;

the effect that the iron core block 2 moves down in the rough area is achieved by the self weight of the short strip plate 1 and the iron core block 2 on the inclined plane along the strip-shaped sliding groove 5, the moving speed of an object in different rough areas is convenient to observe, and meanwhile, the electromagnet assembly 20 is switched on to generate a magnetic field to magnetically attract the iron core block 2 in different degrees, so that the effect of simulating the weight increment of the object is achieved.

The application has the advantages that:

1. the friction contact device is reasonable in structure, experiments with different friction degrees can be carried out, the motor 10 is operated to drive the guide roller 17 to rotate, and six surface areas with different roughness degrees on the rough surface long belt 7 can be orderly positioned in the strip-shaped concave surface 6 to serve as friction contact surfaces;

2. the telescopic control device is reasonable in structure, can be used for telescopic control of the air cylinder 16, achieves the effect of pushing and pulling the long flat box 4, is beneficial to changing the inclination angle, and is convenient for friction experiments of different slope angles;

3. this application is rational in infrastructure, and the speed of moving down of the object in different coarse areas of being convenient for observe is fast, and switch-on electromagnet assembly 20 produces the magnetic field and inhales with the magnetism of different degrees to iron core piece 2 simultaneously, plays the effect that the simulation object gained weight.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a frictional force experimental apparatus of physics experiment which characterized in that: comprises a short strip plate (1), an iron core block (2), a long flat box (4), a rough surface long belt (7), a motor (10), a base plate (13), a hand-held air cylinder (14), an air cylinder (16), guide rollers (17), an electromagnet assembly (20) and balls (22), wherein the iron core block (2) is arranged at the middle position of the bottom of the short strip plate, the surface of the bottom of the iron core block (2) is in contact with the surface corresponding part of the rough surface long belt (7) positioned in a strip-shaped concave surface (6), the rough surface long belt (7) penetrates through two corresponding strip-shaped holes (8), the long flat box (4) is internally symmetrically and rotatably provided with two guide rollers (17), the two guide rollers (17) are in transmission connection through the rough surface long belt (7) between the two guide rollers (17), the shaft end of the motor (10) is connected with the transmission structure end at one end of one guide roller (17), the push rod end of the air cylinder (16) is in movable connection with the back corresponding part of the long flat box (4), and the cylinder (16) is connected with the hand-held air cylinder (14) through the air duct (15), the electromagnet assembly (20) is arranged on the top surface of the plastic long frame (18), and the balls (22) are engaged in the corresponding engaging grooves (21) in a rolling manner.

2. The friction force experiment device for physical experiment as claimed in claim 1, wherein: the surface of the rough surface long belt (7) is provided with six surface areas with different roughness degrees, and the width of each surface area with different roughness degrees is consistent with the width of the strip-shaped concave surface (6).

3. The friction force experiment device for physical experiment as claimed in claim 1, wherein: the long flat box (4) is communicated with the interior of the strip-shaped concave surface (6) through the strip-shaped hole (8), and two movable connecting grooves (11) are symmetrically formed in one end of the back surface of the long flat box (4).

4. The friction force experiment device for physical experiment as claimed in claim 1, wherein: the air cylinder (16) is installed on one side of the top surface of the backing plate (13), and one end of the backing plate (13) is movably connected with the corresponding movable connecting groove (11) through a movable connecting piece (12).

5. The friction force experiment device for physical experiment as claimed in claim 1, wherein: the bar-shaped sliding grooves (5) are formed in the two sides of the top of the long flat box (4), the round concave surface (9) is formed in one side of the end face of one end of the long flat box (4), and the round concave surface (9) is fixedly connected with the motor (10).

6. The friction force experiment device for the physical experiment according to claim 1, wherein: slider (3) are all installed at short slat (1) bottom both ends, and three linking groove (21) have been seted up to slider (3) bottom equidistance.

7. The friction force experiment device for physical experiment as claimed in claim 6, wherein: the two sides of the sliding block (3) are in sliding contact with the two sides in the strip-shaped sliding groove (5), and the bottom of the sliding block (3) is in rolling contact with the bottom of the groove in the strip-shaped sliding groove (5) through the rolling balls (22).

8. The friction force experiment device for physical experiment as claimed in claim 1, wherein: an electric control assembly (19) is arranged inside the plastic long frame (18), and a port at one end of the plastic long frame (18) is communicated with the end face of the other end of the long flat box (4).

9. The friction force experiment device for physical experiment as claimed in claim 1, wherein: the plastic long frame (18) is fixedly arranged in the middle of the inside of the long flat box (4).

10. The friction force experiment device for physical experiment as claimed in claim 1, wherein: the motor (10) and the electromagnet assembly (20) are electrically connected with a corresponding electric control assembly (19) in the plastic long frame (18) through leads.