CN217902595U

CN217902595U - Novel Young's modulus experiment device

Info

Publication number: CN217902595U
Application number: CN202220581538.6U
Authority: CN
Inventors: 段秋键; 薛松; 任怡; 石文亮
Original assignee: Southwest University of Science and Technology
Current assignee: Southwest University of Science and Technology
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2022-11-25
Anticipated expiration: 2032-03-17

Abstract

The utility model relates to a novel Young's modulus experimental apparatus, including last chuck 2, support column 6, optical lever platform 11, light source generator 10, weight dish 7. The upper collet 2 is provided with a fixing device metal wire 3 and a scale 4, the metal wire 3 is connected with a weight tray 7 through a hook, and the scale can measure the deformation of the metal wire and the distance between the upper collet 2 and the measuring platform 12; the weight tray 7 is provided with a hook and a stabilizing sheet, the hook is connected with the metal wire 3, the stabilizing sheet is contacted with the supporting column 6, the weight tray 7 is prevented from swinging to influence the accuracy of reading, the optical lever platform 11 is provided with a strip-shaped light source generator 10, the deformation of the metal wire is amplified through an optical lever, so that a strip-shaped light source generated by the strip-shaped light source generator moves, and then the reading is carried out to achieve the purpose of measuring the deformation of the metal wire. The utility model discloses the improvement that the relative current Young modulus optical lever measurement experimental apparatus goes on has reduced the weight dish swing, reading convenient and fast, and the simple easily operation of device.

Description

Novel Young's modulus experiment device

Technical Field

The utility model discloses an improvement device of young modulus experimental facilities, the improvement of concretely relates to young modulus teaching device.

Background

The measurement of the Young modulus is an experiment which must be mastered by college students at present, and most research institutions adopt a static stretching method for measuring the Young modulus of a metal material. At present, the method has the defects of large load during stretching, low loading speed, existence of a relaxation process, unrealistic reflection and change of the internal structure of the material. Brittle materials (e.g., glass, ceramic, etc.) cannot be measured by this method. The Young modulus of the material at different temperatures cannot be measured, and the bending resonance method is a measurement method widely adopted in various countries in the world due to wide application range (different materials and different temperatures), stable experimental results and small error.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the swing of current young modulus teaching device weight in the measurement process to and the swing is to observing the influence scheduling problem of reading, provides a simple structure, easily installs, the young modulus teaching device that the weight is difficult for swing, the reading of being convenient for.

In order to achieve the purpose, the utility model adopts the technical proposal that: the utility model relates to a novel Young's modulus experimental apparatus, including last chuck, support column, optical lever platform, light source generator, weight dish. The upper chuck is provided with a fixing device which can fix the metal wire and the scale; the weight tray is provided with a hook and a stabilizing sheet, the hook is connected with a metal wire, the stabilizing sheet is contacted with the support column, the weight tray is prevented from swinging to influence the accuracy of reading, and the optical lever platform is provided with a strip-shaped light source generator.

Further, the support base may maintain the support post in a vertical relationship with respect to the ground.

Furthermore, the upper chuck is arranged in the upper chuck fastening hole through a fastening bolt, so that the upper chuck is fixed above the supporting column.

Furthermore, the measuring platform is located in the middle of the supporting column, and the fastening bolt is installed in the fastening hole of the measuring platform. The measuring platform is characterized in that when the fastening bolt is loosened, the measuring platform can slide up and down, and when the fastening bolt is tightened, the measuring platform is fixed.

Furthermore, the upper chuck is provided with a clamp for fixing a metal wire, one end of the metal wire is clamped by the clamp, the other end of the metal wire is connected with the hook of the weight tray, and the scaleplate is fixed in the hole of the upper chuck.

Furthermore, an optical lever platform and a light source generator are arranged on the measuring platform. Using the principle of optical leverage, data can be read out on the scale. When the metal wire 3 is slightly displaced under the action of external force, light emitted by the light source generator deflects on the scale, so that a difference value is obtained.

Furthermore, the weight tray is provided with a stabilizing sheet which is in contact with the support column, so that the effect of keeping the weight tray stable when the weight is placed is achieved.

The beneficial technical effects of the invention are as follows.

The accuracy and the convenience of use of the Young's modulus experimental equipment are improved. The scale 4 on the device not only can directly measure the original length of wire before measuring, reduces and uses the step of tape measure measurement, can also directly measure the deformation volume of wire, and the stabilizing piece 8 retrains weight dish 7 simultaneously, has reduced the rocking when placing the weight for the speed of experiment, has also reduced the error of experiment, makes the faster more accurate reading of observer. The diversity and the richness of the Young modulus teaching are increased, the enthusiasm of students is stimulated, and the demonstration effect is enhanced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application.

Fig. 1 schematically shows a schematic structural diagram of a body of a novel young's modulus experimental device according to the present application.

Fig. 2 schematically shows a structural diagram of an optical lever and a bar-shaped light source generator in a novel young's modulus experimental device according to the present application.

FIG. 3 is a schematic diagram showing the principle of measuring Young's modulus by an optical lever and a bar light source generator in a novel Young's modulus experimental device according to the present application.

Fig. 4 schematically shows the structural position schematic diagram of the light lever, the strip light source generator and the scale in the novel young's modulus experimental device according to the present application.

Fig. 1 is a schematic view of the overall structure of the present invention.

In fig. 1: 1. fastening a bolt; 2. an upper chuck; 3. a metal wire; 4. a graduated scale; 5. fastening a bolt; 6. a support column; 7. a weight tray; 8. a stabilizing sheet; 9. a support base; 10. a light source generator; 11. an optical lever platform; 12. a measuring platform; 13. and (4) hanging hooks.

Fig. 2 is a schematic diagram of the structure of an optical lever and a bar light source generator.

FIG. 3 is a schematic diagram of the principle of measuring Young's modulus of an optical lever and a bar light source generator.

Fig. 4 is a schematic diagram of the structural positions of the optical lever, the strip-shaped light source generator and the graduated scale.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

As shown in fig. 1, the problem in the background art is solved, and a novel young's modulus experimental device is provided, wherein the upper chuck 2 is fixed with the support column 6 through a fastening screw 1, the upper chuck 2 is provided with a fixture fixing metal wire 3 and a scale 4, the metal wire 3 is connected with a hook 13, the scale 4 can be used for measuring the deformation of the metal wire 3 or the distance between the upper chuck 2 and the measuring platform 12, the fastening screw 5 fastens the measuring platform 12 on the support column 6, the support column 6 is connected with the upper chuck 2, the measuring platform 12 and the support base 9, the weight tray 7 is provided with a hook 13 and a stabilizing piece 8, the hook 13 is connected with the metal wire 3, the stabilizing piece 8 is connected with the support column 6, the support base 9 is connected with the lower end of the support column 6, the light source generator 10 is arranged on the light lever platform 11, and the light lever platform 11 is arranged on the measuring platform 12 and used for measuring the deformation of the metal wire 3.

The utility model discloses in, for the convenience of measuring 3 original lengths of wire and the length after deformation, place near 3 metal wire with scale 4 for the original length of direct measurement metal wire 3 and the length after deformation.

In the utility model, in order to prevent the weight tray 7 from violent shaking when the weight is placed, the stabilizing piece 8 is designed to restrain the weight tray 7 and ensure the stable state.

The utility model discloses in, for the convenience of observing the registration on the scale 4 directly perceivedly, design light source generator 10 and link to each other with optical lever platform 11, through shining of light, can directly carry out the reading on scale 3.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Those of ordinary skill in the art will understand that: the components in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, and may be correspondingly changed in one or more devices different from the embodiments.

Finally, it should be noted that: although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced with other equivalent embodiments without departing from the spirit and scope of the present invention, and all such modifications or partial substitutions are intended to be included within the scope of the appended claims.

Claims

1. A novel Young modulus experimental device is characterized by comprising an upper chuck (2), a metal wire (3), a ruler (4), a hexagon bolt (5), a support column (6), a weight plate hook (13), a weight plate (7), a support base (9), a measuring platform (12), an optical lever platform (11) and a light source generator (10), the upper clamping head (2) is fixed with the supporting column (6) through a fastening bolt (1), the upper chuck (2) is provided with a metal wire (3) and a scale (4), the metal wire (3) is connected with a weight tray hook (13), the hexagonal bolt (5) fixes the measuring platform (12) on the support column (6), the support column (6) connects the upper clamping head (2), the measuring platform (12) and the support base (9), the weight tray (7) is provided with a hook (13) and a stabilizing sheet (8), the hook (13) is connected with the metal wire (3), the stabilizing sheet (8) is connected with the supporting column (6), the supporting base (9) is connected with the lower end of the supporting column (6), a light source generator (10) is arranged on the optical lever platform (11), an optical lever platform (11) is arranged on the measuring platform (12).

2. A novel young's modulus experimental device according to claim 1, characterized in that said supporting base (9) can keep the supporting column (6) in vertical relation with respect to the ground.

3. A novel young's modulus experimental device according to claim 1, characterized in that the upper clamping head (2) is installed in the fastening hole through the fastening bolt (1) to be fixed above the supporting column (6).

4. A novel young's modulus experimental device according to claim 1, characterized in that, the measuring platform (12) is located in the middle of the supporting column (6), the hexagon bolt (5) is installed in the fastening hole of the measuring platform, when the hexagon bolt (5) is loosened, the measuring platform can slide up and down, and when the hexagon bolt (5) is tightened, the measuring platform (12) is fixed.

5. A novel young's modulus experimental device according to claim 1, characterized in that the upper collet (2) is provided with a clamp for fixing the metal wire (3), one end of the metal wire (3) is clamped by the clamp, the other end is connected with a weight disc hook (13), and the staff (4) is fixed in the upper collet hole.

6. A new young's modulus experimental device according to claim 1, characterized in that, the optical lever platform (11) and the light source generator (10) are arranged on the measuring platform (12), and by using the optical lever principle, data can be read out on the scale (4), and when the metal wire (3) is slightly displaced under the action of external force, the light emitted by the light source generator (10) is deflected on the scale, so as to obtain the difference.

7. The novel Young's modulus experimental device according to claim 1, wherein the weight tray (7) is provided with a stabilizing sheet feature, and the stabilizing sheet (8) is in contact with the supporting column (6) to achieve the effect of keeping the weight tray (7) stable when the weight is placed.