Device for testing compression resistance of epoxy glass powder mica tape

Abstract

The utility model discloses an epoxy glass powder mica tape compression resistance characteristic testing device which comprises a testing box, a pressure loading device, a sample fixing device, a displacement measuring device, an environment simulation device and a controller, the pressure loading device comprises an operation table and a pressure generator, the pressure loading device is arranged in the testing box, and the sample fixing device is arranged in the testing box. The sample fixing device is arranged on the operation table, the pressure generator is located above the sample fixing device and can move up and down, the environment simulation device comprises a temperature control device and a humidity adjusting device which are installed on the inner wall of the test box, and the displacement measuring device is installed on the outer wall of the test box. The pressure generator, the displacement measuring device and the environment simulation device are electrically connected with the controller. According to the utility model, the compression resistance data of the epoxy glass powder mica tape can be comprehensively and accurately obtained.

Description

Technical Field

[0001] This utility model relates to the technical field of material performance testing equipment, specifically to a device for testing the compression resistance of epoxy glass powder mica tape. Background Technology

[0002] In the field of electrical insulation, epoxy glass powder mica tape plays a crucial role. It is primarily used to manufacture insulating composite materials such as stator winding insulation, and the insulation layers for equipment like high-voltage motors and transformers. The mica sheets within possess high electrical strength and excellent heat resistance, effectively preventing current leakage and ensuring the safe operation of electrical equipment under various voltage and high-temperature environments. Simultaneously, the glass fiber component in the epoxy glass powder mica tape enhances the mechanical strength and abrasion resistance of the insulation material, making it less prone to cracking or damage during external forces, installation, and operation. This provides a durable and reliable insulation guarantee for the stable operation of electrical equipment, significantly improving the overall performance and safety of the electrical insulation system.

[0003] In summary, in the field of electrical insulation, the compressibility of epoxy glass powder mica tape is one of the important indicators for evaluating its reliability and stability under actual working conditions. However, existing testing equipment has many shortcomings, such as uneven pressure loading during testing, inaccurate compression measurement, and inability to simulate complex actual working environments. This makes it difficult to obtain comprehensive and accurate data on the compressibility of epoxy glass powder mica tape, which greatly limits in-depth research and optimized application of this material and fails to meet the urgent needs of the modern power industry for accurate evaluation of the performance of high-quality insulation materials. Utility Model Content

[0004] This invention provides a device for testing the compression resistance of epoxy glass powder mica tape, which can comprehensively and accurately obtain compression resistance data of epoxy glass powder mica tape.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0006] An epoxy glass powder mica tape compression resistance testing device includes a test chamber, a pressure loading device, a sample fixing device, a displacement measuring device, an environmental simulation device, and a controller. The pressure loading device includes an operating table and a pressure generator, and is located inside the test chamber. The sample fixing device is located on the operating table, and the pressure generator is located above the sample fixing device and can move up and down. The environmental simulation device includes a temperature control device and a humidity control device, which are installed on the inner wall of the test chamber. The displacement measuring device is installed on the outer wall of the test chamber. The pressure generator, displacement measuring device, and environmental simulation device are electrically connected to the controller.

[0007] Furthermore, the temperature control device includes a heating element and a temperature sensor. The heating element is an electric heating wire, which is evenly distributed on the inner wall of the test chamber.

[0008] Furthermore, the temperature sensor is a resistive temperature sensor or a thermocouple temperature sensor.

[0009] Furthermore, the humidity regulating device includes a humidity sensor and a fan. The fan is installed on the side wall of the test chamber, and the side wall of the test chamber has a hole for connecting the air inlet pipe.

[0010] Furthermore, the sample fixing device includes two symmetrical clamps and several screws. The clamps have through holes, and the operating table has threaded holes. The two clamps are connected to the operating table by screws.

[0011] Furthermore, the lower surface of the pressure generator is provided with a pressure-applying protrusion corresponding to the center of the sample fixing device.

[0012] Furthermore, the displacement measuring device is parallel to the operating table, and its measuring end is perpendicular to the line connecting the two clamps.

[0013] Furthermore, the displacement measuring device is a laser displacement sensor or a grating ruler displacement sensor.

[0014] Furthermore, the test chamber is transparent.

[0015] Furthermore, the controller is electrically connected to the display.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model is equipped with a temperature control device and a humidity adjustment device, which can simulate different temperature and humidity test environments, and then study the influence of environmental factors on the compression resistance of epoxy glass powder mica tape, so that the test results are more in line with the actual application scenarios.

[0018] 2. This utility model is equipped with a sample fixing device for fixing the sample, so that the pressure protrusion faces the sample, the pressure is applied evenly, and the test data is accurate.

[0019] 3. This utility model is equipped with a displacement measuring device, which can measure the amount of compression displacement of the sample under pressure, providing data support for the quantitative analysis of compression resistance characteristics. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the sample when it is fixed.

[0023] In the diagram: 1-Test box, 2-Sample fixing device, 21-Clamping plate, 22-Screw, 23-Through hole, 3-Displacement measuring device, 4-Controller, 5-Operating table, 51-Threaded hole, 6-Pressure generator, 61-Pressure protrusion, 7-Heating element, 8-Temperature sensor, 9-Humidity sensor, 10-Fan, 11-Display, 12-Sample. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] In the description of the embodiments of this application, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this application is usually placed in when in use, or the orientation or positional relationship that is commonly understood by those skilled in the art. It is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0026] In the description of the embodiments of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] like Figure 1As shown, a device for testing the compression resistance of epoxy glass powder mica tape includes a test chamber 1, a pressure loading device, a sample fixing device 2, a displacement measuring device 3, an environmental simulation device, and a controller 4.

[0028] The pressure loading device includes an operating platform 5 and a pressure generator 6. The pressure loading device is installed inside the test chamber 1, the sample fixing device 2 is installed on the operating platform 5, and the pressure generator 6 is located above the sample fixing device 2 and can move up and down. Figure 2 As shown, the sample fixing device 2 includes two symmetrical clamping plates 21 and several screws 22. Through holes 23 are provided on the clamping plates 21, and threaded holes 51 are provided on the operating table 5. The two clamping plates 21 are connected to the operating table 5 by screws 22, clamping and fixing both ends of the sample 12. A pressure-applying protrusion 61 is provided on the lower surface of the pressure generator 6 corresponding to the center of the sample fixing device 2. Figure 2 As shown, it faces the middle of sample 12.

[0029] The environmental simulation device includes a temperature control device and a humidity control device, which are installed on the inner wall of the test chamber 1 to simulate different temperature and humidity test environments. The temperature control device includes a heating element 7 and a temperature sensor 8. The heating element 7 is an electric heating wire, evenly distributed on the inner wall of the test chamber 1. Preferably, the temperature sensor 8 is a resistance temperature sensor or a thermocouple temperature sensor. The humidity control device includes a humidity sensor 9 and a fan 10. The fan 10 is installed on the side wall of the test chamber 1, and the side wall of the test chamber 1 has a hole for connecting the air inlet pipe. The displacement measuring device 3 is installed on the outer wall of the test chamber 1, parallel to the operating table 5, and its measuring end is perpendicular to the line connecting the two clamping plates 21. It can measure the compressive displacement of the sample under pressure, providing data support for the quantitative analysis of compression resistance characteristics. Preferably, the displacement measuring device 3 is a laser displacement sensor or a grating ruler displacement sensor.

[0030] The pressure generator 6, displacement measuring device 3, and environmental simulation device are electrically connected to the controller 4. The pressure generator 6, displacement measuring device 3, and environmental simulation device can collect relevant data such as pressure, displacement, and environmental parameters in real time and transmit them to the controller 4. Preferably, the controller 4 is electrically connected to the display 11, which can display the collected data. These data can then be processed and analyzed to generate key charts such as pressure-displacement curves and compression modulus versus time curves. This visually reflects the compression resistance of the epoxy glass powder mica tape and its changing trend with environmental factors, providing a scientific basis for material performance evaluation and engineering design.

[0031] During the test, several layers of epoxy glass powder mica tape were arranged as follows: Figure 2The sample 12 is placed on the operating table 5 in the stacked manner shown, and the first and last parts are fixed by the sample fixing device 2. The pressure parameters are set, including the pressure loading rate, the target pressure value, and the environmental conditions (temperature and humidity). The pressure generator 6 applies pressure to the sample 12 smoothly according to the preset loading rate. At the same time, the displacement measuring device 3 monitors the compression displacement change of the sample 12 in real time and continuously collects data until the preset test end conditions are met (the target pressure value is reached and maintained for a certain period of time or the sample is damaged). Then, the controller 4 controls the entire device to automatically stop running and collect data.

[0032] Preferably, the test chamber 1 is transparent, allowing observation of changes in the sample inside.

[0033] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A device for testing the compressive strength of epoxy glass powder mica tape, characterized in that: The test chamber (1), pressure loading device, sample fixing device (2), displacement measuring device (3), environmental simulation device and controller (4) are included. The pressure loading device includes an operating table (5) and a pressure generator (6). The pressure loading device is set inside the test chamber (1). The sample fixing device (2) is set on the operating table (5). The pressure generator (6) is located above the sample fixing device (2) and can move up and down. The environmental simulation device includes a temperature control device and a humidity adjustment device. The temperature control device and the humidity adjustment device are installed on the inner wall of the test chamber (1). The displacement measuring device (3) is installed on the outer wall of the test chamber (1). The pressure generator (6), the displacement measuring device (3) and the environmental simulation device are electrically connected to the controller (4). The sample fixing device (2) includes two symmetrical clamps (21) and several screws (22). The clamps (21) have through holes (23) and the operating table (5) has threaded holes (51). The two clamps (21) are connected to the operating table (5) by screws (22). The lower surface of the pressure generator (6) is provided with a pressure protrusion (61) corresponding to the center of the sample fixing device (2). The displacement measuring device (3) is parallel to the operating table (5) and its measuring end is perpendicular to the line connecting the two clamps (21).

2. The device for testing the compression resistance of epoxy glass powder mica tape according to claim 1, characterized in that: The temperature control device includes a heating element (7) and a temperature sensor (8). The heating element (7) is an electric heating wire, which is evenly distributed on the inner wall of the test chamber (1).

3. The device for testing the compression resistance of epoxy glass powder mica tape according to claim 2, characterized in that: The temperature sensor (8) is a resistance temperature sensor or a thermocouple temperature sensor.

4. The device for testing the compression resistance of epoxy glass powder mica tape according to claim 1, characterized in that: The humidity control device includes a humidity sensor (9) and a fan (10). The fan (10) is installed on the side wall of the test chamber (1). The side wall of the test chamber (1) has a hole for connecting the air inlet pipe.

5. The device for testing the compression resistance of epoxy glass powder mica tape according to claim 1, characterized in that: The displacement measuring device (3) is a laser displacement sensor or a grating ruler displacement sensor.

6. The device for testing the compression resistance of epoxy glass powder mica tape according to claim 1, characterized in that: The test box (1) is transparent.

7. The device for testing the compression resistance of epoxy glass powder mica tape according to claim 3, characterized in that: The controller (4) is electrically connected to the display (11).

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