Friction experiment device

Abstract

The invention discloses a friction experiment device, and relates to the technical field of theoretical mechanics experiments, the friction experiment device comprises a bottom plate, an electric cylinder assembly and a box body, the electric cylinder assembly and the box body are installed on the bottom plate, the bottom plate is provided with four adjusting bottom feet, one end of the box body is provided with a hinge assembly and connected with one end of a base plate through the hinge assembly, and the base plate is connected with the bottom plate through the electric cylinder assembly. A flange is installed at the end, close to the hinge assembly, of the base plate, an angle measuring instrument is further arranged on the base plate, and a switching power supply and a controller for controlling the electric cylinder assembly are fixed to a bottom plate in the box body. Friction test plates made of various different materials can be placed on the base plate, and the maximum static sliding friction force can be measured through the tension meter. An experimenter can use a remote controller to control the controller and drive the electric cylinder assembly to drive one end of the base plate to complete jacking or descending actions, automatic adjustment of the inclination angle of the base plate is achieved, the test requirements of maximum static sliding friction force and friction angles of friction test plates made of different materials under various inclination angle states can be met, and the experiment device is small in size and convenient to carry.

Description

Technical Field

[0001] This invention discloses a friction experimental device, belonging to the field of theoretical mechanics experimental technology, and particularly relates to a portable static friction experimental device for teaching experiments. Background Technology

[0002] Theoretical mechanics is a highly theoretical and fundamental technical course, one of the basic theories of modern engineering technology, with wide applications in many fields of life and engineering. When an object moves along the tangent of its contact surface or has a tendency to move relative to another object, there is a force between the contact surfaces that opposes their relative motion; this is called friction. This phenomenon or characteristic between contact surfaces is called "friction." In current mechanics courses, on-site demonstrations of relevant mechanical knowledge are often conducted to help students better understand these concepts. Experiments teaching friction phenomena in theoretical mechanics often demonstrate the quantitative measurement of the maximum static sliding friction force and the friction angle between two objects. However, current teaching aids for demonstrating friction cannot intuitively digitize, graphically represent, or automate the friction angle measurement results. Furthermore, the randomness of student experiments affects the accuracy and precision of the experimental data, thus impacting learning efficiency and effectiveness. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings and defects of existing technologies by providing a friction experiment device for teaching experiments. This device automates, intelligently integrates, and humanizes the experimental process, simplifies operation, displays experimental results digitally, and automatically adjusts the friction tilt angle. Different friction test plates made of different materials can be used in different experiments, facilitating students' understanding of the influence of materials on friction. Adjustable feet at the bottom allow for easy horizontal adjustment of the device. The static friction experiment device is convenient to use, small in size, lightweight, and easy to carry.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a friction testing device, comprising a base plate, an electric cylinder assembly mounted on the base plate, and a housing. The base plate has four adjustable feet. A hinge assembly is mounted on one end of the housing, connecting it to one end of a base plate. The base plate and the base plate are connected via the electric cylinder assembly. A retaining edge is mounted on the end of the base plate near the hinge assembly. An angle measuring instrument is also mounted on the base plate. A switching power supply and a controller for controlling the electric cylinder assembly are fixed on the base plate inside the housing. The base plate can hold friction test plates of various materials, and the maximum static sliding friction force can be measured using a tension gauge. The operator can use a remote control to operate the controller, thereby driving the electric cylinder assembly to lift or lower one end of the base plate, achieving automatic adjustment of the base plate's tilt angle. This meets the testing requirements for the maximum static sliding friction force and friction angle of friction test plates of different materials under various tilt angles. The base plate tilt angle can be automatically and flexibly adjusted according to testing requirements.

[0005] Based on the above technical solutions, preferably, the electric cylinder assembly includes an electric cylinder, a hinge seat at the bottom of the electric cylinder, and a hinge at the head of the electric cylinder; the mounting position of the hinge at the head of the electric cylinder and the base plate is determined by calculation based on the maximum tilt angle requirement of the base plate and the maximum stroke of the electric cylinder.

[0006] Preferably, the substrate has a retaining edge at one end near the hinge assembly.

[0007] More preferably, the angle measuring instrument is a digital display inclinometer, and the tension gauge is a digital display tension gauge.

[0008] The portable static friction experimental device described above has a switching power supply and a controller installed on the inner bottom plate of the housing. This provides electrical control support for the operation of the electric cylinder assembly and can also be controlled by a remote control.

[0009] The lower base plate of the portable static friction experimental device is equipped with horizontal adjustment feet, the core function of which is to perform horizontal calibration of the substrate at the beginning of the experiment, providing basic accuracy assurance for the experiment.

[0010] The effects and benefits of this invention are: (1) This invention has a simple structure and is easy to use. The experimental process is automated and user-friendly. It is easy to operate and the angle of the inclined plate can be easily adjusted. The experimental results are displayed digitally and intuitively. The system is stable, reliable and easy to manage. (2) By changing the friction test plate of different materials, this invention can use different materials to conduct experiments during the experiment, which makes it easier for the experimenters to understand the influence of materials on friction. The electric cylinder assembly can freely and automatically adjust the tilt angle of the plate, so as to conduct friction coefficient experiments of different materials at different angles, which is convenient for comparison. (3) This invention uses a digital display reading device, which makes the readings of the maximum static sliding friction force and friction angle more accurate. At the same time, it can also more intuitively display the relevant experimental data to students. It is also small in size and easy to carry. (4) The bottom plate of this invention is equipped with horizontal adjustment feet, which makes it convenient to calibrate the plate at the beginning of the experiment and to adjust the horizontal level of the operating table, providing basic accuracy guarantee for the experiment. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 This is a front view of a friction testing apparatus according to the present invention.

[0013] Figure 2 This is an attached view of a friction testing apparatus according to the present invention.

[0014] Figure 3 This is a right-side view of a friction experimental apparatus according to the present invention.

[0015] Figure 4 This is a front view of the friction experimental apparatus of the present invention when measuring static friction.

[0016] In the diagram, 1. Base plate; 2. Electric cylinder assembly; 3. Adjustable feet; 4. Housing; 5. Base plate; 6. Hinge assembly; 7. Edge guard; 8. Switching power supply; 9. Controller; 10. Tension gauge; 11. Friction test plate; 12. Angle measuring instrument. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the present invention clearer, the specific embodiments are described below in conjunction with the accompanying drawings. The appended claims and drawings are for the purpose of making the structure and other aspects, features, and advantages of the present invention more readily understood, wherein the same reference numerals are used to indicate the same parts. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the scope of protection of the invention.

[0018] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4An embodiment of the present invention discloses a friction testing device, comprising a base plate 1, an electric cylinder assembly 2 mounted on the base plate 1, and a housing 4. The base plate 1 is provided with four adjustable feet 3. A hinge assembly 6 is mounted on one end of the housing 4, which is connected to one end of a base plate 5. The base plate 5 is connected to the base plate 1 via the electric cylinder assembly 2. A retaining edge 7 is mounted on the end of the base plate 5 near the hinge assembly 6. An angle measuring instrument 12 is also provided on the base plate 5. A switching power supply 8 and a controller 9 for controlling the electric cylinder assembly 2 are fixed on the base plate 1 inside the housing 4. The base plate 5 can hold friction test plates 11 of various materials, and the maximum static sliding friction force can be measured by a tension gauge 10. The experimenter can use a remote control to operate the controller, which in turn drives the electric cylinder assembly 2 to lift or lower one end of the substrate 5, thereby achieving automatic adjustment of the tilt angle of the substrate 5. This can meet the testing requirements of the maximum static sliding friction force and friction angle of the friction test plate of different materials under various tilt angle conditions. The tilt angle of the substrate 5 can be automatically and flexibly adjusted according to the test requirements. The readings of the maximum static sliding friction force and friction angle are accurate. At the same time, it can also more intuitively display the relevant experimental data to students. In addition, it is small in size and easy to carry.

[0019] The electric cylinder assembly 2 includes an electric cylinder, a hinge seat at the bottom of the electric cylinder, and a hinge at the head of the electric cylinder; the mounting position of the hinge at the head of the electric cylinder and the base plate 5 is determined by the maximum tilt angle requirement of the base plate 5 and the maximum stroke of the electric cylinder.

[0020] The inner bottom plate 1 of the casing 4 of the friction test device is equipped with a switching power supply 8 and a controller 9, which not only provides electrical control support for the operation of the electric cylinder assembly 3, but also allows the operation of the electric cylinder assembly 3 to be controlled by a remote control.

[0021] The lower base plate 1 of the portable static friction experimental device is provided with horizontal adjustment feet 3, the core function of which is to perform horizontal calibration of the base plate 5 at the beginning of the experiment, so as to provide basic accuracy guarantee for the experiment.

[0022] The specific embodiments described are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, but without departing from the spirit of the present invention or exceeding the scope defined by the appended claims. All equivalent transformations and improvements made in accordance with the scope of protection of the claims of the present invention are covered by the scope of protection of the claims of the present invention.

Claims

1. A friction experimental apparatus, characterized in that: The system includes a base plate (1), an electric cylinder assembly (2) mounted on the base plate (1), and a housing (4). The base plate (1) has four adjustable feet (3). A hinge assembly (6) is mounted on one end of the housing (4), which is connected to one end of a base plate (5). The base plate (5) is connected to the base plate (1) via the electric cylinder assembly (2). A retaining edge (7) is mounted on one end of the base plate (5) near the hinge assembly (6). An angle measuring instrument (12) is also mounted on the base plate (5). The bottom plate inside the housing (4) is... 1) A controller (9) with a switching power supply (8) and a control electric cylinder assembly (2) is fixed on it; the base plate (5) can hold friction test plates (11) of various materials, and the maximum static sliding friction can be measured by a tension gauge (10); the electric cylinder assembly (2) includes an electric cylinder and a hinge seat at the bottom of the electric cylinder and a hinge at the head of the electric cylinder. The installation position of the hinge at the head of the electric cylinder and the base plate (5) is determined by the maximum tilt angle requirement of the base plate (5) and the maximum stroke of the electric cylinder.

2. The friction test apparatus according to claim 1, characterized in that: The inner bottom plate (1) of the box (4) is equipped with a switching power supply (8) and a controller (9), which provides electrical control support for the operation of the electric cylinder assembly (3) and can also control the operation of the electric cylinder assembly (3) via a remote control; the bottom plate (1) is provided with a horizontal adjustment foot (3), the core function of which is to perform horizontal calibration of the base plate (5) at the beginning of the experiment, providing basic accuracy assurance for the experiment.

Images