High-temperature tensile experiment device with uniform heating function

Abstract

The utility model provides a high-temperature tensile experiment device with uniform heating. The high-temperature tensile experiment device comprises a shell, a heating assembly and a measuring assembly, two cylindrical clamps which are distributed up and down are arranged in the shell and used for clamping and fixing the two ends of a stretching material. The heating assembly comprises two annular high-frequency induction coils which are nested with each other, openings are formed in the front ends of the two high-frequency induction coils, the two high-frequency induction coils are located between the two clamps of the shell, and the rear ends of the two high-frequency induction coils are connected with the shell through supporting columns. During use, the two annular high-frequency induction coils are arranged to surround the periphery of a stretching material to uniformly heat the stretching material at high temperature, and then the motor, the first gear, the second gear, the conical tooth set, the sliding block, the fixing rod, the sliding rail and the rack are arranged to be matched with one another to heat the stretching material. The range of openings reserved at the front ends of the two annular high-frequency induction coils can be expanded, so that a space is reserved for the measurement assembly.

Description

Technical Field

[0001] This utility model relates to the field of materials testing technology, and in particular to a high-temperature tensile testing device with uniform heating. Background Technology

[0002] The MTS ambient and high-temperature tensile testing machine is mainly used to test the tensile properties of materials under ambient and high-temperature conditions. It provides accurate tensile load and deformation data, thereby evaluating the mechanical properties and durability of materials. This equipment is widely used in materials research, aerospace, metallurgy, machinery, quality control, and other fields.

[0003] In existing technologies, tensile tests on materials at high temperatures are performed by winding high-frequency induction coils around both ends of the material. The heating process begins at both ends, with the heat gradually shifting from the ends towards the center. This heating method leads to uneven heating of the material, affecting the accuracy of tensile data under high-temperature conditions, resulting in large experimental errors and experimental failures.

[0004] To address this issue, we propose a high-temperature tensile testing apparatus with uniform heating to solve the problem of uneven heating in material tensile testing in existing technologies, which affects experimental measurement data. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a high-temperature tensile testing device with uniform heating, so as to solve the problem of uneven heating in material tensile testing in the prior art, which affects the experimental measurement data.

[0006] To achieve the above and other related objectives, this utility model provides a high-temperature tensile testing device with uniform heating, comprising: a shell, a heating component, and a measuring component;

[0007] The interior of the outer shell is provided with two cylindrical clamps distributed vertically to clamp and fix the two ends of the stretched material;

[0008] The heating assembly includes two nested annular high-frequency induction coils. The front ends of the two high-frequency induction coils are open and both are located between two clamps of the housing. The rear ends of the two high-frequency induction coils are connected to the housing through a support column. The upper part of the support column is provided with a driving component for driving the two high-frequency induction coils to rotate around the center line of the housing and making their rotation directions opposite.

[0009] The measuring component is located at the front end of the housing and is used to sense and record tensile data of the experimental material.

[0010] Preferably, the driving component includes a motor installed inside the support column. The upper end of the motor is connected to a first gear, and the upper end of the first gear is provided with a second gear. The first gear and the second gear are connected by a bevel gear set, which is used to make the rotation directions of the first gear and the second gear opposite. The front ends of the first gear and the second gear are each connected to a rack. The front end of each rack is connected to a slider. Each slider is connected to a high-frequency induction coil through a fixing rod. The rear end of the housing is connected to an arc-shaped slide rail corresponding to the two sliders.

[0011] Preferably, the conical tooth group consists of three identical conical teeth, which mesh sequentially and form a U-shaped cross-section.

[0012] Preferably, each of the high-frequency induction coils is connected to an external cable at both ends, and multiple fixing blocks are installed on the rear side wall of the housing to fix the external ports of the spring telescopic wires.

[0013] Preferably, the outer casing has multiple through holes on its two side walls, and each of the air holes is equipped with a fan and a high-pressure air nozzle.

[0014] Preferably, the measuring component includes brackets connected to the side walls at both ends of the housing, with a CCD camera and an infrared thermometer mounted on the left bracket and a linear sensor mounted on the right bracket.

[0015] Preferably, the front end of the outer shell extends outward on both sides to form elongated protrusions, and suction cups are installed on the outer side walls of the protrusions.

[0016] Preferably, the right end of the housing is connected to a touch screen via a support rod.

[0017] As described above, the high-temperature tensile testing device for uniform heating disclosed in this utility model has the following beneficial effects: This utility model, by setting two annular high-frequency induction coils surrounding the tensile material, uniformly heats the material at a high temperature. Furthermore, by setting a motor, a first gear, a second gear, a conical gear assembly, a slider, a fixed rod, a slide rail, and a rack to cooperate with each other, the pre-reserved opening range at the front end of the two annular high-frequency induction coils can be expanded, thus providing space for the measuring components. Simultaneously, by setting high-pressure air nozzles and a fan, heat is dissipated from the tensile material to varying degrees.

[0018] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value. Attached Figure Description

[0019] Figure 1 The image shown is a perspective view of a high-temperature tensile testing device with uniform heating according to this utility model.

[0020] Figure 2 The diagram shown is a separation diagram of the high-frequency induction coil of a high-temperature tensile testing device with uniform heating according to this utility model.

[0021] Figure 3 The image shown is a rear-view perspective view of a high-temperature tensile testing device with uniform heating according to this utility model.

[0022] Figure 4 The diagram shown is a slide rail connection structure diagram of a high-temperature tensile testing device with uniform heating according to this utility model.

[0023] Figure 5 The image shown is a cross-sectional view of the drive component of a high-temperature tensile testing device for uniform heating according to this utility model.

[0024] Figure 6 This invention presents a high-temperature tensile testing apparatus with uniform heating. Figure 1 Enlarged view of section A in the middle.

[0025] Component designation explanation

[0026] 1. Outer casing; 10. Fixing block; 11. Fan; 12. Protrusion; 13. Suction cup; 14. Touch screen; 15. High-pressure air nozzle;

[0027] 2. Heating component; 20. High-frequency induction coil; 21. Support column; 22. Drive component; 220. Motor; 221. First gear; 222. Second gear; 223. Bevel gear set; 224. Slider; 225. Fixed rod; 226. Slide rail; 227. Rack; 201. Spring telescopic cable;

[0028] 3. Measuring components; 30. Bracket; 31. CCD camera; 32. Infrared thermometer; 33. Linear sensor. Detailed Implementation

[0029] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0030] Please see Figures 1 to 6It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0031] like Figure 1-6 As shown, this utility model provides a high-temperature tensile testing device with uniform heating, including: a shell 1, a heating component 2, and a measuring component 3;

[0032] The interior of the outer casing 1 is equipped with two cylindrical clamps distributed vertically to clamp and fix the two ends of the stretching material; the upper clamp is connected to the stretching mechanism for performing stretching operations on the experimental material.

[0033] The heating assembly 2 includes two nested annular high-frequency induction coils 20. Each of the two coils 20 has an opening at its front end and is located between two clamps on the outer casing 1, allowing the coils to wrap around the stretched material. When energized, this enables omnidirectional heating, preventing uneven heating of the stretched material. The opening range of the coils 20 is adjustable, facilitating data measurement by the measuring assembly 3. The rear ends of both coils 20 are connected to the outer casing 1 via support pillars 21. A driving component 22 is located on the upper part of the support pillars 21, driving the two coils 20 to rotate around the centerline of the outer casing 1 in opposite directions, thereby controlling the adjustment of the opening size of the coils 20.

[0034] The measuring component 3 is located at the front end of the housing 1 and is used to sense and record tensile data of the experimental material.

[0035] In one embodiment, please refer to Figure 1-5The drive component 22 includes a motor 220 installed inside the support column 21. The upper end of the motor 220 is connected to a first gear 221, and the upper end of the first gear 221 is provided with a second gear 222. The first gear 221 and the second gear 222 are connected by a bevel gear set 223. The bevel gear set 223 is used to make the rotation directions of the first gear 221 and the second gear 222 opposite. The front ends of the first gear 221 and the second gear 222 are each connected to a rack 227. The front end of each rack 227 is connected to a slider 224. Each slider 224 is connected to the high-frequency induction coil 20 through a fixing rod 225. The rear end of the outer casing 1 is connected to an arc-shaped slide rail 226 corresponding to the two sliders 224. When data measurement is required after heating the stretched material, the motor 220 is started. The motor 220 drives the first gear 221 to rotate. The first gear 221 drives the second gear 222 to rotate synchronously in the opposite direction through the bevel gear set 223. The first gear 221 and the second gear 222 drive the two racks 227 and the slider 224 to slide towards the center of the arc-shaped slide rail 226. The two sliders 224 drive the two high-frequency induction coils 20 to rotate through the fixed rod 225, thereby increasing the opening range.

[0036] In one embodiment, please refer to Figure 5 The conical gear set 223 consists of three identical conical teeth that mesh sequentially and form a U-shaped cross-section. The design of the three conical gear sets 223 ensures that the first gear 221 and the second gear 222 rotate in opposite directions.

[0037] In one embodiment, please refer to Figure 1-3 Each high-frequency induction coil 20 has a spring telescopic cable 201 connected to both ends of an external cable. Multiple fixing blocks 10 are installed on the rear side wall of the housing 1 to secure the external ports of the spring telescopic cable 201. The spring telescopic cable 201 is suitable for the rotation of the high-frequency induction coil 20, avoiding direct cable connection which could lead to cable bending and damage or obstruction of equipment operation.

[0038] In one embodiment, please refer to Figure 1 and Figure 5 Multiple through holes are provided on the two side walls of the outer casing 1, and each vent is equipped with a fan 11 and a high-pressure air nozzle 15. By having the fans 11 on both sides run synchronously and face the same direction, the airflow in the stretching material area can be accelerated for cooling; the high-pressure air nozzle 15 can achieve rapid cooling, allowing the stretching material to be quickly cooled to the temperature required for testing.

[0039] In one embodiment, please refer to Figure 1The measuring component 3 includes brackets 30 connected to the side walls at both ends of the housing 1. A CCD camera 31 and an infrared thermometer 32 are mounted on the left bracket 30. The CCD camera 31 records images of the deformation of the stretched material, and the infrared thermometer 32 measures and provides feedback on the temperature of the stretched material in real time. A linear sensor 33 is mounted on the right bracket 30. The linear sensor 33 is preferably an MTS displacement sensor. The working principle of the MTS displacement sensor is mainly based on induction, converting the measured physical quantity (such as displacement) into an electrical signal through a sensing element. Specifically, it typically detects changes in physical quantity by measuring changes in resistance or capacitance.

[0040] In one embodiment, please refer to Figure 1 The front sides of the outer casing 1 extend outward to form elongated protrusions 12, and suction cups 13 are installed on the outer side walls of the protrusions 12. When using the measuring component 3, the bracket 30 needs to be rotated to move the measuring instrument to the front opening of the high-frequency induction coil 20 for measurement. The bracket 30 is then attached and fixed from the side by the suction cups 13, thereby achieving the positioning of the measuring instrument.

[0041] In one embodiment, please refer to Figure 1 The right end of the outer casing 1 is connected to a touch screen 14 via a support rod. The touch screen 14 is electrically connected to the aforementioned electronic components and the electronic components on the tensile testing machine, and is used to display the experimental measurement data of the tensile material in real time and facilitate the control by the experimental personnel.

[0042] The specific usage process of this utility model is as follows: The stretching material is fixed between the two clamps of the outer shell 1. The motor 220 is started, and the motor 220 drives the first gear 221 to rotate. The first gear 221 drives the second gear 222 to rotate synchronously in the opposite direction through the conical gear group 223. The first gear 221 and the second gear 222 drive the two racks 227 and the sliders 224 to slide towards both ends of the arc-shaped slide rail 226. The two sliders 224 drive the two high-frequency induction coils 20 to rotate through the fixing rod 225, so that the opening is narrowed. The two annular high-frequency induction coils 20 wrap around the stretching material. The high-frequency induction coils 20 are energized, and the high-frequency induction coils 20 generate heat to uniformly heat the stretching material. After the heating is completed, the motor 220 is started in the opposite direction to expand the opening. The stretching material is quickly cooled to the temperature required for measurement through the high-pressure air nozzle 15. The bracket 30 is rotated to move the measuring instrument in front of the stretching material to measure the data, and the operation is completed.

[0043] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A high-temperature tensile testing apparatus with uniform heating, characterized in that, include: The outer casing (1), the heating assembly (2), and the measuring assembly (3); The outer shell (1) is provided with two cylindrical clamps distributed vertically inside, which are used to clamp and fix the two ends of the stretched material; The heating assembly (2) includes two nested annular high-frequency induction coils (20). The front ends of the two high-frequency induction coils (20) are provided with openings and are located between two clamps of the outer shell (1). The rear ends of the two high-frequency induction coils (20) are connected to the outer shell (1) through a support column (21). The upper part of the support column (21) is provided with a driving component (22) for driving the two high-frequency induction coils (20) to rotate around the center line of the outer shell (1) and making their rotation directions opposite. The measuring component (3) is located at the front end of the outer shell (1) and is used to sense and record tensile data of the experimental material.

2. The high-temperature tensile testing apparatus with uniform heating according to claim 1, characterized in that: The drive component (22) includes a motor (220) installed inside the support column (21). The upper end of the motor (220) is connected to a first gear (221). The upper end of the first gear (221) is provided with a second gear (222). The first gear (221) and the second gear (222) are connected by a conical gear set (223). The conical gear set (223) is used to make the rotation directions of the first gear (221) and the second gear (222) opposite. The front ends of the first gear (221) and the second gear (222) are connected to racks (227). The front end of each rack (227) is connected to a slider (224). Each slider (224) is connected to a high-frequency induction coil (20) through a fixing rod (225). The rear end of the housing (1) is connected to an arc-shaped slide rail (226) corresponding to the two sliders (224).

3. The high-temperature tensile testing apparatus with uniform heating according to claim 2, characterized in that: The conical tooth group (223) consists of three identical conical teeth, which mesh sequentially and form a U-shaped cross section.

4. The high-temperature tensile testing apparatus with uniform heating according to claim 1, characterized in that: Each of the high-frequency induction coils (20) is connected to an external cable at both ends by a spring telescopic cable (201). Multiple fixing blocks (10) are installed on the rear side wall of the housing (1) to fix the external port of the spring telescopic cable (201).

5. The high-temperature tensile testing apparatus for uniform heating according to claim 1, characterized in that: The outer casing (1) has multiple through holes on its two side walls, and each through hole is equipped with a fan (11) and a high-pressure air nozzle (15).

6. The high-temperature tensile testing apparatus with uniform heating according to claim 1, characterized in that: The measuring component (3) includes brackets (30) connected to the side walls of both ends of the housing (1). A CCD camera (31) and an infrared thermometer (32) are mounted on the left bracket (30), and a linear sensor (33) is mounted on the right bracket (30).

7. The high-temperature tensile testing apparatus with uniform heating according to claim 1, characterized in that: The front sides of the outer shell (1) extend outward to form long strip-shaped protrusions (12), and suction cups (13) are installed on the outer side walls of the protrusions (12).

8. The high-temperature tensile testing apparatus for uniform heating according to claim 1, characterized in that: The right end of the outer casing (1) is connected to a touch screen (14) via a support rod.

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