Testing integrated device for natural environment accumulated damage test of rubber material

Abstract

The invention discloses a rubber material natural environment accumulated damage test integrated device which comprises a test black box, the test black box is installed on a sun tracking device, an in-situ test monitoring system is arranged in the test black box, a rubber sample is installed on the in-situ test monitoring system, and the rubber sample can synchronously move along with the test black box; the device is used for being arranged in a polar environment or a high-temperature environment with the temperature not lower than 100 DEG C. The rubber material natural environment cumulative damage test integrated device provided by the invention can be used for enhancing the solar radiation heat effect and the day and night and seasonal temperature difference effect suffered by the rubber material in the in-situ test process, and can accelerate the aging of the rubber material in the natural environment; the in-situ damage test can be stably and smoothly carried out on the rubber material while the working condition factors suffered by the rubber material are simulated.

Description

Technical Field

[0001] The invention belongs to the technical field of rubber material damage testing equipment, and in particular relates to an integrated device for testing cumulative damage of rubber materials in natural environments. Background Art

[0002] Some rubber materials used in polar regions or high temperature (not less than 100°C) environments require accelerated testing in harsh environments. There is currently no accurate and efficient method for collecting rubber experimental data in such conditions. In addition, there is no in-situ damage testing equipment in the existing technology that can enhance the solar radiation heat effect, day and night and seasonal temperature difference effect on rubber materials.

[0003] In addition to temperature factors, some rubber materials will also be affected by operating factors such as pressure and rotation during actual use. How to simulate the operating factors that rubber materials are subjected to while conducting in-situ damage tests on them stably and smoothly is also a problem that needs to be solved. Summary of the invention

[0004] In view of the technical problems mentioned in the background technology, the present invention aims to provide an integrated device for testing the cumulative damage of rubber materials in natural environments.

[0005] The present invention adopts the following technical solution.

[0006] A natural environment cumulative damage test integrated device for rubber materials comprises a test black box, which is mounted on a sun tracking device. An in-situ test monitoring system is arranged in the test black box, and a rubber sample is mounted on the in-situ test monitoring system, and the rubber sample can move synchronously with the test black box. The device is used to be arranged in a polar environment or a high temperature environment with a temperature not lower than 100°C.

[0007] Furthermore, a sample clamping part is arranged in the test black box and beside the in-situ test monitoring system, and the sample clamping part is used to install a plate-shaped sample or a rod-shaped sample.

[0008] Furthermore, a mounting hole is provided on the bottom wall of the test black box, and a cylindrical in-situ test monitoring system is inserted into the mounting hole. The rubber sample is located above the bottom wall of the test black box. Such a structure facilitates the rapid placement and removal of the in-situ test monitoring system, which is convenient not only for conducting in-situ tests on samples under the enhanced effects of operating conditions, but also for conducting in-situ tests on samples under the non-enhanced effects of operating conditions.

[0009] Furthermore, both ends of the test black box are rotatably connected to the stand of the solar tracking device, one end of the test black box is connected to a horizontally arranged power system, and the power system is used to control the vertical flipping of the test black box, and the stand is rotatably connected to the base of the solar tracking device, and the power system of the base is used to control the synchronous horizontal rotation of the stand and the test black box.

[0010] Furthermore, there is a cavity below the bottom wall of the test black box, and hollow areas are provided on the bottom walls of the test black box on the left and right sides of the in-situ test monitoring system. Fans are provided on the sides of the hollow areas, and the cavities above and below the bottom wall of the test black box and the hollow areas together constitute a circulating air duct.

[0011] Furthermore, the in-situ test monitoring system includes a rubber sample mounting part, which is arranged at the periphery of the central area of ​​the top of the heat-insulating shell, and the rubber sample mounting part is connected to the rubber compression control mechanism located in the heat-insulating shell, and a visual terminal is arranged in the central area of ​​the top of the heat-insulating shell, and the visual terminal is arranged in the quartz glass cover, and the visual terminal is used to photograph the rubber sample. An insulation cylinder is arranged in the inner cavity of the quartz glass cover, and the insulation cylinder sleeve is arranged on the visual terminal mounting cylinder, and a through hole is radially arranged on the insulation cylinder, and the lens of the visual terminal is located at the through hole and can photograph the rubber sample from the through hole. The rubber compression control mechanism adopts a telescopic mechanism, and a force sensor is arranged on the telescopic rod of the telescopic mechanism, and a pressure plate is fixedly arranged at the top of the telescopic rod, and a fixed plate is arranged directly above the pressure plate, and the hollow space between the pressure plate and the fixed plate is used to place the rubber sample; when the telescopic rod of the telescopic mechanism is retracted, the height of the hollow space becomes larger; when the telescopic rod of the telescopic mechanism is extended, the height of the hollow space becomes smaller.

[0012] Furthermore, the heat-insulating shell is cylindrical, and four groups of rubber sample mounting parts are arranged on the top of the heat-insulating shell, and each group of rubber sample mounting parts is equipped with two telescopic mechanisms arranged at intervals. The telescopic rod of each telescopic mechanism is connected to the positioning plate through a linear bearing, and the upper and lower ends of the positioning plate are provided with a heat-insulating layer. The heat-insulating shell includes a coaxially arranged outer shell, a heat-insulating layer and an inner shell, and the heat-insulating layer is sandwiched between the outer shell and the inner shell; a cooling element is arranged in the inner cavity of the inner shell; and the electronic control part of the rubber compression control mechanism is located in the inner cavity of the inner shell.

[0013] The fixed plate is a prism plate, and there is a hollow space directly below the center of the prism plate, which faces the lens of the visual terminal. This solution can obtain the posture of the rubber sample more accurately, more standardly and more clearly, and is especially suitable for testing and monitoring round or rectangular rubber samples.

[0014] Furthermore, a ring groove for clamping the rubber sealing ring is provided on the pressing plate, the ring groove is arranged close to the through hole, and the pressing plate is made of quartz glass material. With such a solution, the rubber sealing ring sample can be tested and monitored smoothly.

[0015] Beneficial effects: The integrated test device for the natural environment cumulative damage test of rubber materials provided by the present invention can be used to enhance the solar radiation heat effect, day and night and seasonal temperature difference effect experienced by the rubber material during the in-situ test process, can accelerate the aging of the rubber material in the natural environment, and can stably and smoothly carry out damage in-situ testing on the rubber material while simulating the working conditions experienced by the rubber material; the scheme of the present invention is adopted to realize the in-situ monitoring of the stress relaxation level of the rubber sample under pressure, and realize the online and real-time monitoring of the stress relaxation level of the sample under the test environment, thereby ensuring the stability and continuity of the monitoring data and improving the authenticity and accuracy of the monitoring results; the scheme of the present invention is adopted, the operation process is simple and the efficiency is high, and it is particularly suitable for in-situ monitoring and detection in low or high temperature environments; during the test, there is no need to take out the sample to determine the relevant test data, and long-term in-situ test monitoring of the rubber sample under constant displacement or constant stress conditions can be realized; the scheme of the present invention can be accurately controlled to monitor after the rubber sample (including the rubber sealing ring sample) is compressed to any target thickness, and the corresponding target thickness error can be controlled within 0.01mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 , Figure 2 It is a schematic diagram of the external structure of the integrated device for testing the cumulative damage of rubber materials in natural environment in the embodiment; Figure 3 , Figure 4 Schematic diagram of the internal structure of the test black box of the integrated test device for the natural environment cumulative damage test of rubber materials in the embodiment; Figure 5 Schematic diagram of the installation of three rubber samples for trial separation; Figure 6 It is a schematic diagram of the external structure of the in-situ test monitoring system of the integrated device for testing the cumulative damage of rubber materials in natural environment in the embodiment (with six rubber sample installation parts); Figure 7 It is a cross-sectional schematic diagram of the in-situ test monitoring system; Figure 8 for Figure 7 Enlarged view of part B in the middle (application plan 1); Fig. 9 for Figure 7 Enlarged view of area B in the middle (application plan 2). DETAILED DESCRIPTION

[0017] The technical solution of the present invention is described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0018] Combination Figures 1 to 8 As shown, a natural environment cumulative damage test integrated device for rubber materials includes a test black box 20, which is installed on a sun tracking device. An in-situ test monitoring system 21 is arranged in the test black box 20 ( Figure 3 and Figure 4 Six test monitoring systems 21 are schematically embodied. The rubber sample 2 is installed on the in-situ test monitoring system, and the rubber sample 2 can move synchronously with the test black box 20. The device is used to be arranged in a polar environment or a high temperature environment with a temperature not lower than 100°C. A sample clamping part 22 is arranged inside the test black box 20 and beside the in-situ test monitoring system 21. The sample clamping part 22 is used to install a plate sample or a rod sample. A mounting hole is arranged on the bottom wall of the test black box 20. The cylindrical in-situ test monitoring system 21 is inserted into the mounting hole. The rubber sample 2 is located above the bottom wall of the test black box 20. Among them, the two ends of the test black box 20 are rotatably connected to the stand 23 of the solar tracking device. One end of the test black box 20 is connected to a horizontally arranged power system. The power system is used to control the vertical flipping of the test black box 20. The stand 23 is horizontally rotatably connected to the base 24 of the solar tracking device. The power system of the base 24 is used to control the stand 23 and the test black box 20 to rotate synchronously in the horizontal direction. The test black box 20 has a cavity below the bottom wall, and hollow areas 26 are provided on the bottom walls of the test black box 20 on the left and right sides of the in-situ test monitoring system 21. The sample clamping part 22 is located in the hollow area 26, and a fan 25 is provided on the side of the hollow area 26. The cavities above and below the bottom wall of the test black box 20 and the hollow area 26 together constitute a circulating air duct.

[0019] In this embodiment, the in-situ test monitoring system 21 includes a rubber sample mounting portion 2, Figure 5 The figure schematically shows three rubber sample mounting parts 2 (three samples can be tested at the same time). Figure 5The figure schematically shows five rubber sample mounting parts 2 (which can test five samples at the same time); the rubber sample mounting parts 2 are arranged at the periphery of the central area at the top of the heat-insulating shell 1, and the rubber sample mounting parts 2 are connected to the rubber compression control mechanism located in the heat-insulating shell 1. A visual terminal is arranged at the central area at the top of the heat-insulating shell 1, and the visual terminal is arranged in the quartz glass cover 4. The visual terminal is used to shoot the rubber sample 16. An insulating cylinder 5 is arranged in the inner cavity of the quartz glass cover 4, and the insulating cylinder 5 is sleeved on the visual terminal mounting cylinder 7. The insulating cylinder 5 and the quartz glass cover 4 are coaxially arranged, and a through hole 6 is radially arranged on the insulating cylinder 5. The lens of the visual terminal is located at the through hole 6 and can shoot the side wall of the rubber sample 16 from the through hole 6. A light hole is arranged on the visual terminal mounting cylinder 7 and near the through hole 6, and a fill light is installed at the light hole, so that the visual terminal can shoot under standard lighting conditions.

[0020] In this embodiment, the rubber compression control mechanism adopts a telescopic mechanism, which can be specifically an electric push rod or a screw lifting mechanism that can control the stroke. When the screw lifting mechanism is adopted, the lifting rod can be regarded as a telescopic rod. A force sensor 18 is set on the telescopic rod of the telescopic mechanism. A pressing plate 8 is fixedly set at the top of the telescopic rod. A fixed plate 10 is set just above the pressing plate 8. The fixed plate 10 is fixedly connected to the top surface of the shell 11 through a connecting rod. The hollow space between the pressing plate 8 and the fixed plate 10 is used to place the rubber sample 16; when the telescopic rod of the telescopic mechanism is retracted, the height of the hollow space becomes larger; when the telescopic rod of the telescopic mechanism is extended, the height of the hollow space becomes smaller. Among them, the heat-insulating shell 1 is cylindrical, and four or five groups of rubber sample mounting parts 2 are set on the top of the heat-insulating shell 1, and each group of rubber sample mounting parts 2 is equipped with two telescopic mechanisms arranged at intervals. The telescopic rod of each telescopic mechanism (or the lifting rod of the screw lifting mechanism) is connected to the pressing plate 8 through a linear bearing 17. The lower end of the pressing plate 8 is provided with a heat insulation layer 15, and the heat insulation layer 15 is integrally formed with the heat insulation cylinder 5. In this embodiment, the heat-insulating shell 1 includes a coaxially arranged outer shell 11, an insulation layer 12 and an inner shell 13, and the insulation layer 12 is sandwiched between the outer shell 11 and the inner shell 13; a cooling element 9 is arranged in the inner cavity of the inner shell 13; and the electronic control part of the rubber compression control mechanism is located in the inner cavity of the inner shell 13. The fixing plate 10 adopts a prismatic plate, and holes are opened at the two corners of the prismatic plate and fastening bolts are arranged. The hollow area is just below the central position of the prismatic plate, and the area is facing the lens of the visual terminal. Such a scheme can obtain the posture of the rubber sample more accurately, more standardly and more clearly, and is particularly suitable for testing and monitoring circular or rectangular rubber sealing rings. The cooling element 9 in this embodiment adopts a spiral tube, and the spiral tube is connected to a circulating coolant supply system to control the continuous flow of the coolant in the spiral tube, thereby taking away the heat of the inner cavity of the inner shell 13. Similarly, when the coolant adopts a high-temperature hot fluid, it can continuously supply heat to the inner cavity of the inner shell 13, so that the inner cavity of the inner shell 13 is maintained in a suitable temperature range. In addition, a fan is also provided in the inner cavity of the inner shell 13 to enhance the heat exchange efficiency between the inner cavity of the inner shell 13 and the cooling element 9. The heat insulation layer 12 and the heat insulation cylinder 5 are both made of aerogel material; the rubber compression control mechanism, the visual terminal, the force sensor 18, and the circulating coolant supply system are all connected to the control system, and their operation is controlled by the control system.

[0021] Before use, the device is debugged and calibrated, and the obtained rubber sample 16 pixels are calibrated. Each pixel after calibration corresponds to a unit of actual height, and then the compression of the rubber sample 16 is calculated according to the number of pixels. For example: the actual height corresponding to a calibrated pixel of a certain type of rubber sample 16 is 0.003mm. When the number of single-column pixels in the height direction of the side wall of the rubber sample 16 in the image taken in the non-compressed state is 3000, the corresponding height of the side wall of the rubber sample 16 (i.e., the initial thickness of the rubber sample 16) is 9mm; when the number of single-column pixels in the height direction of the side wall of the rubber sample 16 in the image taken in the compressed state is 2500, the corresponding height of the side wall of the rubber sample 16 (i.e., the thickness of the rubber sample 16 after compression) is 7.5mm; therefore, the compression of the rubber sample 16 can be calculated to be 1.5mm. When in use, first install the rubber sample 16 at the rubber sample installation part 2 of the in-situ test monitoring system 21 (if necessary, a plate sample or a rod sample can be installed on the sample clamping part 22 to facilitate simultaneous testing of these samples), then directly insert the in-situ test monitoring system 21 into the installation hole on the bottom wall of the test black box 20, then close the cover of the test black box 20, and then set the action flow of the solar tracking device and the test black box 20 according to the test requirements, and then start the natural environment cumulative damage test of the rubber material.

[0022] One of the methods for conducting a natural environment cumulative damage test on rubber materials includes: Step 1, first debug and calibrate the in-situ test monitoring system 21; Step 2, controlling the rubber compression control mechanism to be in an initial state; Step 3, place the rubber sample 16 in the hollow space between the pressing plate 8 and the fixing plate 10. Figure 7 There is a hint in it; Step 4, control the rubber compression control mechanism to operate, so that the telescopic rod moves up to the first target position and then pauses. At this time, the fixed plate 10 just sticks to the top surface of the rubber sample 16. The state at this time is as follows: Figure 8 As shown; Step 5, inserting the in-situ test monitoring system 21 into the installation hole of the test black box 20; Step 6, control the cooling element 9 to work, control the visual terminal to turn on; start to control the sun tracking device to rotate according to the time and the set speed, and adjust the attitude so that the top cover of the test black box 20 is always facing the sun; Step 7, first control the visual terminal to photograph the rubber sample 16 in a non-compressed state, then control the rubber compression control mechanism to operate so that the telescopic rod moves upward, and in the process photograph the rubber sample 16 in a compressed state in real time; Step 8, when the rubber sample 16 in the compressed state is photographed to be compressed to the target thickness, the rubber compression control mechanism is controlled to maintain the state, and then an accelerated test is performed on the rubber sample 16 according to preset experimental parameters; Step 9, generating a residual stress-time graph / data of the rubber sample under constant displacement (compression value) conditions according to the obtained compression posture, force value information, and test time information.

[0023] During the test: when the fixing plate 10 is just against the top surface of the rubber sample 16, the force value fed back by the force sensor 18 is close to zero, and the corresponding compression thickness of the rubber sample 16 is 0; in the subsequent constant stress continuous loading process, the force value fed back by the force sensor 18 is compensated to a constant value, and the corresponding compression thickness of the rubber sample 16 will gradually increase. A series of thickness values ​​will be obtained over time, and based on these data, a rubber sample compression thickness-time chart / data can be obtained.

[0024] In a further embodiment, combined with Fig. 9 As shown, a ring groove 28 for clamping the rubber sealing ring 27 is provided on the pressing plate 8, and the ring groove 28 is arranged close to the through hole 6. The pressing plate 8 is made of quartz glass material, so that the rubber sealing ring sample can be tested and monitored in situ smoothly.

[0025] In a further application scheme, the second method of conducting a natural environment cumulative damage test on rubber materials includes the following steps: Step 1, first debug and calibrate the in-situ test monitoring system 21; Step 2, controlling the rubber compression control mechanism to be in an initial state; Step 3, Combine Fig. 9 As shown, a rubber sealing ring sample (that is, a rubber sample 16; for easy identification, the rubber sealing ring sample is attached to the annular groove 28 on the pressing plate 8) is clamped in the annular groove 28 on the pressing plate 8. Fig. 9 The number 27 is used in the identification); Step 4, controlling the rubber compression control mechanism to operate so that the telescopic rod moves up to the first target position and then pauses, at which time the fixed plate 10 is just against the top surface of the rubber sample 16; Step 5, inserting the in-situ test monitoring system 21 into the installation hole of the test black box 20; Step 6, control the cooling element 9 to work, control the visual terminal to start, and control the test box to run; start to control the sun tracking device to rotate according to the time and the set speed, and adjust the posture so that the top cover of the test black box 20 is always facing the sun; Step 7, first control the visual terminal to photograph the rubber sample 16 in a non-compressed state, then control the rubber compression control mechanism to operate so that the telescopic rod moves upward, and in the process photograph the rubber sample 16 in a compressed state in real time; Step 8, when the rubber sample 16 in the compressed state is photographed to be compressed to the target thickness, the rubber compression control mechanism is controlled to maintain the state, and then an accelerated test is performed on the rubber sample 16 according to preset experimental parameters; Step 9, generating a residual stress-time graph / data of the rubber sample under constant displacement (compression value) conditions according to the obtained compression posture, force value information, and test time information.

[0026] The integrated test device for the natural environment cumulative damage test of rubber materials provided in the embodiment can be used to enhance the solar radiation heat effect, day and night and seasonal temperature difference effect experienced by the rubber material during the in-situ test, can accelerate the aging of the rubber material in the natural environment, and can stably and smoothly carry out damage in-situ testing on the rubber material while simulating the working conditions experienced by the rubber material; the scheme of the embodiment is adopted to realize the in-situ monitoring of the stress relaxation level of the rubber sample under pressure, and realize the online and real-time monitoring of the stress relaxation level of the sample under the test environment, thereby ensuring the stability and continuity of the monitoring data and improving the authenticity and accuracy of the monitoring results; the scheme of the embodiment is adopted, the operation process is simple and efficient, and is particularly suitable for in-situ monitoring and detection in low or high temperature environments; during the test, there is no need to take out the sample to determine the relevant test data, and long-term in-situ test monitoring of the rubber sample under constant displacement or constant stress conditions can be realized; the scheme of the embodiment can be accurately controlled to monitor the rubber sample (including the rubber sealing ring sample) after being compressed to any target thickness, and the corresponding target thickness error can be controlled within 0.01mm.

Claims

1. An integrated test device for a natural environment cumulative damage test of a rubber material, comprising a test black box (20), the test black box (20) being installed on a sun tracking device, characterized in that: An in-situ test monitoring system (21) is arranged in the test black box (20), and the rubber sample (2) is mounted on the in-situ test monitoring system, and the rubber sample (2) can move synchronously with the test black box (20); the device is used to be arranged in a polar environment or a high temperature environment with a temperature not lower than 100°C.

2. The integrated test device for natural environment cumulative damage test of rubber materials according to claim 1, characterized in that: A sample clamping portion (22) is provided inside the test black box (20) and beside the in-situ test monitoring system (21). The sample clamping portion (22) is used to mount a plate-shaped sample or a rod-shaped sample.

3. The integrated test device for natural environment cumulative damage test of rubber materials according to claim 1, characterized in that: A mounting hole is provided on the bottom wall of the test black box (20), a columnar in-situ test monitoring system (21) is inserted into the mounting hole, and the rubber sample (2) is located above the bottom wall of the test black box (20).

4. The integrated test device for natural environment cumulative damage test of rubber materials according to claim 1, characterized in that: The two ends of the test black box (20) are rotatably connected to the stand (23) of the solar tracking device. One end of the test black box (20) is connected to a horizontally arranged power system, and the power system is used to control the vertical flipping of the test black box (20). The stand (23) is rotatably connected to the base (24) of the solar tracking device. The power system of the base (24) is used to control the synchronous horizontal rotation of the stand (23) and the test black box (20).

5. The integrated test device for natural environment cumulative damage test of rubber materials according to claim 1, characterized in that: The bottom wall of the test black box (20) has a cavity, and the bottom walls of the test black box (20) on the left and right sides of the in-situ test monitoring system (21) are both provided with hollow areas (26), and fans (25) are provided on the sides of the hollow areas (26). The cavities above and below the bottom wall of the test black box (20) and the hollow areas (26) together form a circulating air duct.

6. The integrated test device for natural environment cumulative damage test of rubber materials according to any one of claims 1 to 5, characterized in that: The in-situ test monitoring system (21) comprises a rubber sample mounting part (2), the rubber sample mounting part (2) being arranged at the periphery of the central area at the top of the heat-insulating shell (1), the rubber sample mounting part (2) being connected to a rubber compression control mechanism located in the heat-insulating shell (1), a visual terminal being arranged at the central area at the top of the heat-insulating shell (1), the visual terminal being arranged in a quartz glass cover (4), the visual terminal being used to photograph the rubber sample (16); an insulation cylinder (5) being arranged in the inner cavity of the quartz glass cover (4), the insulation cylinder (5) being sleeved on the visual terminal mounting cylinder (7), and radially arranged on the insulation cylinder (5). The rubber sample (16) is provided with a through hole (6), and the lens of the visual terminal is located at the through hole (6) and can take a picture of the rubber sample (16) from the through hole (6); the rubber compression control mechanism adopts a telescopic mechanism or a lifting mechanism, a force sensor (18) is provided on the telescopic rod of the telescopic mechanism, a pressure plate (8) is fixedly provided at the top of the telescopic rod, a fixing plate (10) is provided directly above the pressure plate (8), and a hollow space between the pressure plate (8) and the fixing plate (10) is used to place the rubber sample (16); when the telescopic rod of the telescopic mechanism is retracted, the height of the hollow space increases; when the telescopic rod of the telescopic mechanism is extended, the height of the hollow space decreases.

7. The integrated test device for natural environment cumulative damage test of rubber materials according to claim 6, characterized in that: The heat-insulating shell (1) is cylindrical, and four groups of rubber sample mounting parts (2) are arranged on the top of the heat-insulating shell (1), and each group of rubber sample mounting parts (2) is provided with two telescopic mechanisms arranged at intervals; the telescopic rod of each telescopic mechanism is connected to the pressing plate (8) through a linear bearing (17), and the lower end of the pressing plate (8) is provided with a heat-insulating layer (15); the heat-insulating shell (1) comprises a coaxially arranged outer shell (11), a heat-insulating layer (12) and an inner shell (13), and the heat-insulating layer (12) is sandwiched between the outer shell (11) and the inner shell (13); a cooling element (9) is arranged in the inner cavity of the inner shell (13); the electric control part of the rubber compression control mechanism is located in the inner cavity of the inner shell (13); the fixing plate (10) is a prism plate, and a hollow space is directly below the center of the prism plate, and the space is directly opposite to the lens of the visual terminal.

8. The integrated test device for natural environment cumulative damage test of rubber materials according to claim 7, characterized in that: An annular boss (19) is provided on the upper portion of the outer wall of the heat-insulating shell (1).

9. The integrated test device for natural environment cumulative damage test of rubber materials according to claim 8, characterized in that: An annular groove (28) for holding a rubber sealing ring (27) is provided on the pressing plate (8), and the annular groove (28) is arranged close to the through hole (6). The pressing plate (8) is made of quartz glass material.

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