CN217902595U - Novel Young's modulus experiment device - Google Patents

Abstract

The utility model relates to a novel Young's modulus experiment device, which comprises an upper chuck 2, a support column 6, an optical lever platform 11, a light source generator 10, and a weight plate 7. The upper chuck 2 is provided with a fixing device wire 3 and a scale 4, the wire 3 is hooked to the weight plate 7, and the scale can measure the deformation of the wire and the distance between the upper chuck 2 and the measuring platform 12; The weight plate 7 is provided with a hook and a stabilizing plate, the hook is connected with the metal wire 3, and the stabilizing plate is in contact with the support column 6, so as to prevent the weight plate 7 from swinging and affecting the accuracy of the reading. 10, the deformation of the metal wire is amplified by the optical lever, so that the bar light source generated by the bar light source generator moves, and then the reading is performed to achieve the purpose of measuring the deformation of the metal wire. Compared with the improvement of the existing Young's modulus light lever measuring experimental device, the utility model reduces the swing of the weight plate, and the reading is convenient and fast, and the device is simple and easy to operate.

Description

A New Young's Modulus Experimental Device

technical field

The utility model discloses an improved device for Young's modulus experimental equipment, in particular to the improvement of the Young's modulus teaching device.

Background technique

The determination of Young's modulus is an experiment that college students must master now. Most research institutions use the static stretching method to measure the Young's modulus of metal materials. At present, using this method, due to the large load during stretching, the slow loading speed and the relaxation process, it cannot truly reflect the change of the internal structure of the material. This method cannot be used to measure brittle materials (such as glass, ceramics, etc.). It is also impossible to measure the Young's modulus of materials at different temperatures, and the bending resonance method is widely used in countries all over the world because of its wide application range (different materials and different temperatures), stable experimental results, and small errors.

Utility model content

The purpose of this utility model is to provide a simple structure, easy to install, and the weight is not easy to swing, aiming at problems such as the swing of the weight of the existing Young's modulus teaching device during the measurement process, and the influence of the swing on the observation reading. Young's modulus teaching device for easy reading.

In order to achieve the above purpose, the technical solution adopted by the utility model is: the utility model relates to a novel Young's modulus experimental device, including an upper chuck, a support column, a light lever platform, a light source generator, and a weight plate. There is a fixing device on the upper chuck to fix the metal wire and the scale; a hook and a stabilizing piece are set on the weight plate, the hook is connected with the metal wire, and the stabilizing piece is in contact with the support column to prevent the swing of the weight plate from affecting the accuracy of the reading , a strip light source generator is arranged on the light lever platform.

Further, the support base can maintain a vertical relationship between the support column and the ground.

Further, the upper chuck is installed in the fastening hole of the upper chuck through fastening bolts, so that it is fixed above the support column.

Further, the measuring platform is located in the middle of the support column, and the fastening bolts are installed in the fastening holes of the measuring platform. It is characterized in that when the fastening bolts are loosened, the measuring platform can slide up and down, and when the fastening bolts are tightened, the measuring platform is fixed.

Further, there is a clamp for fixing the metal wire on the upper clamp, one end of the metal wire is clamped by the clamp, and the other end is connected to the hook of the weight plate, and the scale is fixed in the hole of the upper clamp.

Further, the measurement platform is provided with an optical lever platform and a light source generator. Using the principle of light lever, the data can be read on the scale. When the metal wire 3 is slightly displaced under the action of an external force, the light emitted by the light source generator is deflected on the scale, thereby obtaining a difference.

Further, there is a stabilizing piece on the weight plate, and the stabilizing piece is in contact with the support column, so as to keep the weight plate stable when the weight is placed.

The beneficial technical effects of the present invention are as follows.

In improving the accuracy and ease of use of Young's modulus experimental equipment. The scale 4 on the device can not only directly measure the original length of the metal wire before measurement, reducing the steps of using a tape measure, but also directly measure the deformation of the metal wire. At the same time, the stabilizing plate 8 constrains the weight plate 7, reducing the The shake when placing the weight is eliminated, the speed of the experiment is accelerated, and the error of the experiment is also reduced, so that the observer can read faster and more accurately. Increase the diversity and richness of Young's modulus teaching, stimulate students' enthusiasm, and strengthen the demonstration effect.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the application and constitute a part of the application. In these drawings, the same reference numerals are used to indicate the same or similar parts. The illustrative embodiments of the application and their descriptions are used In order to explain this application, it does not constitute an undue limitation to this application, in the accompanying drawings.

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

Fig. 2 schematically shows the structure diagram of a light lever and a strip light source generator in a novel Young's modulus experimental device according to the present application.

Fig. 3 schematically shows a schematic diagram of the principle of measuring Young's modulus in a novel Young's modulus experimental device according to the present application with an optical lever and a strip light source generator.

Fig. 4 schematically shows the structural positions of an optical lever, a bar-shaped light source generator and a scale in a novel Young's modulus experimental device according to the present application.

Fig. 1 is a schematic diagram of the overall structure of the utility model.

In Fig. 1: 1, fastening bolt; 2, upper chuck; 3, metal wire; 4, scale; 5, fastening bolt; 6, support column; 7, weight disc; Supporting base; 10. Light source generator; 11. Optical lever platform; 12. Measuring platform; 13. Hook.

Fig. 2 Schematic diagram of the structure of the light lever and the bar light generator.

Fig. 3 Schematic diagram of the principle of measuring Young's modulus by the optical lever and the strip light source generator.

Fig. 4 is a schematic diagram of the structural positions of the light lever, the bar light source generator, and the scale.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

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

As shown in Figure 1, to solve the problems in the background technology, a novel Young's modulus experimental device, the upper chuck 2 is fixed with the support column 6 by a fastening screw 1, and a clamp is set on the upper chuck 2 Fixed wire 3 and scale 4, described wire 3 is connected with hook 13, and described scale 4 can be used for measuring the amount of deformation of wire 3 or upper chuck 2 and measuring platform 12 distances, and described fastening screw 5 will The measuring platform 12 is fastened on the supporting column 6, and the supporting column 6 is connected with the upper chuck 2, the measuring platform 12, and the supporting base 9, and a hook 13 and a stabilizing plate 8 are arranged on the weight plate 7, and the hook 13 is connected with the wire 3, the stabilizing plate 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 lever platform 11 is provided with a light source generator 10, and the measurement An optical lever platform 11 is arranged on the platform 12 for measuring the deformation amount of the metal wire 3 .

In the utility model, in order to measure the original length of the wire 3 and the length after deformation, the scale 4 is placed near the wire 3 for directly measuring the original length and the length after deformation of the wire 3.

In the utility model, in order to prevent the weight plate 7 from shaking violently when placing weights, a stabilizing plate 8 is designed to constrain the weight plate 7 to ensure a stable state.

In the utility model, in order to observe the indication on the scale 4 intuitively, the light source generator 10 is designed and connected with the optical lever platform 11, and the reading can be directly performed on the scale 3 through the irradiation of light.

Those skilled in the art can understand that unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as commonly understood by those of ordinary skill in the art to which the present invention belongs. It should also be understood that terms such as those defined in commonly used dictionaries should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted in an idealized or overly formal sense unless defined as herein explain.

Those of ordinary skill in the art can understand that: the components in the device in the embodiment can be distributed in the device in the embodiment according to the description in the embodiment, and can also be changed and located in one or more devices different from the embodiment.

Finally, it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of the utility model. Although the utility model has been described in detail with reference to the above examples, those of ordinary skill in the art should understand that the utility model can still be understood. Any modification or partial replacement without departing from the spirit and scope of the present utility model shall be covered by the claims of the present utility model.

Claims (7)

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.

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