Cable surface pollutant attachment experiment device

Abstract

The invention relates to a cable surface pollutant attachment experiment device. The cable surface pollutant attachment experiment device comprises an experiment table, an experiment bin, a pollutant simulation mechanism, a driving mechanism and a scanning mechanism, the experiment bin is arranged on the experiment table, the experiment bin is provided with a first containing cavity and a detection opening, the detection opening is communicated with the first containing cavity, the first containing cavity is used for placing a to-be-detected cable, the experiment bin further comprises a movable door, and the movable door is connected with the pollutant simulation mechanism. The movable door is movably arranged at the detection opening. The pollutant simulation mechanism is connected to the experiment bin, and the pollutant simulation mechanism is communicated with the first accommodating cavity. The driving mechanism is installed on the experiment table. The scanning mechanism is in driving connection with the driving mechanism, the driving mechanism drives the scanning mechanism to enter or exit from the first containing cavity through the detection opening, and the scanning mechanism is used for obtaining surface pollutant scanning imaging of the to-be-detected cable. The cable surface pollutant attachment experiment device has the advantage of being convenient to use.

Description

Technical Field

[0001] This application relates to the field of electrical testing equipment technology, and in particular to a test device for the adhesion of contaminants on the surface of cables. Background Technology

[0002] High-voltage cable terminations are critical components in power transmission systems. During use, high-voltage cable terminations are prone to accumulating contaminants such as dust, grease, or oxides due to heat and electromagnetic fields. These contaminants can reduce the insulation performance of the high-voltage cable terminations and may also lead to problems such as partial discharge, overheating, and electrical breakdown, affecting the reliability and safety of the power transmission system.

[0003] Studies on the coupling state and surface reactions of contaminant adhesion in high-voltage cable terminations can help understand the interaction mechanism between contaminants and the terminations, providing experimental evidence for their research and development and maintenance. However, currently, there is a lack of commercially available experimental equipment for these experiments, necessitating the design of a device that can simulate contaminant adhesion during the use of high-voltage cable terminations. Summary of the Invention

[0004] Therefore, it is necessary to provide an experimental device for simulating the adhesion of contaminants on the surface of high-voltage cable terminals during use.

[0005] This invention provides an experimental apparatus for testing the adhesion of contaminants to cable surfaces, comprising:

[0006] An experimental platform and an experimental chamber are provided. The experimental chamber is set on the experimental platform. The experimental chamber is provided with a first receiving cavity and a detection port. The detection port is connected to the first receiving cavity. The first receiving cavity is used to place the cable to be tested. The experimental chamber also includes a movable door, which is movably set at the detection port.

[0007] A pollutant simulation mechanism is connected to the experimental chamber and communicates with the first accommodating cavity;

[0008] A drive mechanism, which is mounted on the experimental platform;

[0009] The system includes a scanning mechanism connected to the driving mechanism, which drives the scanning mechanism to enter or exit the first receiving cavity through the probe port. The scanning mechanism is used to acquire surface contaminant scanning images of the cable under test.

[0010] In one embodiment, the driving mechanism includes a first driving unit, a support plate, and a sliding wheel. The first driving unit is mounted on the experimental platform and is drivenly connected to the support plate. The driving direction of the first driving unit is directed toward the detection port. The scanning mechanism is mounted on the support plate, and the sliding wheel is rotatably mounted on the side of the support plate near the experimental platform. The sliding wheel is in rolling contact with the experimental platform.

[0011] In one embodiment, the side of the movable door away from the experimental platform is rotatably connected to the experimental chamber. The experimental platform is provided with a mating groove. The experimental platform also includes a second drive unit and a pressure block. The second drive unit is installed in the mating groove, and the pressure block is drivenly connected to the second drive unit. When the movable door closes the probe port, the side of the movable door near the experimental platform is located in the mating groove, and the second drive unit drives the pressure block to abut against the movable door.

[0012] In one embodiment, the first drive unit includes a drive motor, a lead screw, a mating block, and a bearing housing. The drive motor and the bearing housing are both mounted on the experimental platform. One end of the lead screw is connected to the drive motor, and the other end of the lead screw is mounted on the bearing housing. The mating block has a threaded hole and is movably mounted on the lead screw through the threaded hole. The mating block is also connected to the support plate.

[0013] In one embodiment, the support plate has an extension at one end near the experimental chamber, and the experimental platform has a support block on the side of the mating groove away from the driving mechanism. When the sliding wheel slides into the mating groove, the extension abuts against the support block.

[0014] In one embodiment, the scanning mechanism further includes a top door member, which is installed at one end of the scanning mechanism near the movable door and is used to abut against the movable door.

[0015] In one embodiment, the pollutant simulation mechanism includes a loading box, a feed hopper, and a dust blowing assembly. The loading box has a second receiving cavity, the feed hopper is installed in the loading box, and the feed channel of the feed hopper is connected to the second receiving cavity. The second receiving cavity is connected to the first receiving cavity through the dust blowing assembly.

[0016] In one embodiment, the loading box is provided with a first air outlet and a first air inlet, the experimental chamber is provided with a second air inlet and a second air outlet, and the dust blowing assembly includes a first air pump and a second air pump. The first air outlet and the second air inlet are connected through the first air pump, and the first air inlet and the second air outlet are connected through the second air pump.

[0017] In one embodiment, the pollutant simulation mechanism further includes a feed opening and closing component and a feed driving unit. The feed opening and closing component is disposed in the feed channel, and the feed driving unit is installed in the feed hopper. The feed driving unit is drivenly connected to the feed opening and closing component to drive the feed opening and closing component to open or close the feed channel.

[0018] In one embodiment, the first air outlet is located on one side of the loading box, the first air inlet is located on the opposite side of the loading box opposite to the first air outlet, and the bottom surface of the second receiving cavity is set as an inclined surface, with the first air outlet located at the lowest point of the inclined surface.

[0019] The aforementioned experimental apparatus for testing contaminant adhesion on cable surfaces places the cable under test into the first cavity of the experimental chamber. The contaminant simulation mechanism within this first cavity simulates the contaminants and flowing air conditions of a real-world usage environment. During simulated contaminant adhesion on the cable under test, a movable door closes the detection port. When it is necessary to obtain images of contaminant adhesion on the cable surface, a drive mechanism drives a scanning mechanism to open the movable door. The scanning mechanism enters the first cavity through the detection port to acquire surface contaminant scanning images of the cable under test. After acquisition, the scanning mechanism exits the first cavity, and the movable door closes the detection port to prevent contaminant leakage from the experimental chamber. This application, through images acquired at different times by the scanning mechanism, can analyze the changes in contaminant adhesion over time, providing experimental basis for cable development, improving cable stability and safety, and offering the advantage of ease of use. Attached Figure Description

[0020] Figure 1 This is an initial schematic diagram of the experimental apparatus for the adhesion of contaminants on the cable surface described in the embodiments of this application.

[0021] Figure 2 This is a schematic diagram of the movement of the cable surface contaminant adhesion experimental device described in the embodiments of this application.

[0022] Figure 3 This is a scanned schematic diagram of the experimental apparatus for the adhesion of contaminants to the cable surface described in the embodiments of this application.

[0023] Figure 4 This is a schematic diagram of the initial state of the drive mechanism of the cable surface contaminant adhesion experimental device described in this application embodiment.

[0024] Figure 5 This is a schematic diagram showing the moving state of the drive mechanism of the cable surface contaminant adhesion experimental device described in the embodiments of this application.

[0025] Figure 6This is a schematic diagram showing the movement of the drive mechanism of the cable surface contaminant adhesion experimental device described in this application embodiment.

[0026] Figure 7 This is a schematic diagram of the pollutant simulation mechanism of the cable surface pollutant adhesion experimental device described in the embodiments of this application.

[0027] Figure 8 This is a schematic diagram of the feed hopper of the cable surface contaminant adhesion experimental device described in the embodiments of this application.

[0028] Icon labels:

[0029] 100. Experimental platform; 100A. Mating groove; 110. Second drive unit; 120. Pressure block; 130. Support block;

[0030] 200. Experimental chamber; 200A. First receiving cavity; 200B. Detection port; 210. Movable door; 200C. Second air inlet; 200D. Second air outlet;

[0031] 300. Pollutant simulation mechanism; 310. Loading box; 310A. Second receiving cavity; 310B. First air outlet; 310C. First air inlet; 311. Inclined surface; 320. Feed hopper; 320A. Feeding channel; 330. Dust blowing assembly; 331. First air pump; 332. Second air pump; 341. Feed opening and closing component; 342. Feeding drive unit; 350. Flange block; 361. First connecting pipe; 362. Second connecting pipe;

[0032] 400. Drive mechanism; 410. First drive unit; 411. Drive motor; 412. Lead screw; 413. Mating block; 414. Bearing seat; 420. Bearing plate; 421. Extension; 430. Sliding wheel;

[0033] 500. Scanning mechanism; 510. Top door component;

[0034] 10. Cable to be tested. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0036] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0041] See Figures 1 to 3 The diagram shows a schematic of the structure of a cable surface contaminant adhesion experimental device according to an embodiment of this application. The cable surface contaminant adhesion experimental device includes an experimental platform 100, an experimental chamber 200, a contaminant simulation mechanism 300, a driving mechanism 400, and a scanning mechanism 500. The experimental chamber 200 is disposed on the experimental platform 100. The experimental chamber 200 is provided with a first receiving cavity 200A and a detection port 200B. The detection port 200B is connected to the first receiving cavity 200A. The first receiving cavity 200A is used to place the cable 10 to be tested. The experimental chamber 200 also includes a movable door 210, which is movably disposed at the detection port 200B.

[0042] A contaminant simulation mechanism 300 is connected to the experimental chamber 200 and communicates with the first receiving cavity 200A. The contaminant simulation mechanism 300 is used in the first receiving cavity 200A to simulate the environment of contaminants and flowing gases encountered by the cable during use. A drive mechanism 400 is mounted on the experimental platform 100. A scanning mechanism 500 is driven and connected to the drive mechanism 400. The drive mechanism 400 drives the scanning mechanism 500 to enter or exit the first receiving cavity 200A through the probe port 200B. The scanning mechanism 500 is used to acquire surface contaminant scanning images of the cable 10 under test. The contaminants include, but are not limited to, dust, grease, and oxides.

[0043] In one embodiment, energized cables are prone to contaminant adhesion due to heat generation and electromagnetic fields. The cable surface contaminant adhesion experimental device also includes an electrical control mechanism installed in the experimental chamber 200. The electrical control mechanism is used to electrically connect to the cable under test 10 and energize the cable under test 10. Further, the cable under test 10 is a high-voltage cable termination. Therefore, the cable surface contaminant adhesion experimental device of this embodiment can conveniently conduct experiments on energized high-voltage cable terminations. In other embodiments, grease can be applied to the high-voltage cable termination before the experiment, and then dust can be introduced into the contaminant simulation mechanism 300, causing dust to adhere to the high-voltage cable termination in the first receiving cavity 200A.

[0044] In an optional embodiment, the scanning mechanism 500 is an electron scanning microscope, which can acquire images of contaminant distribution on the surface of the cable 10 under test.

[0045] The cable surface contaminant adhesion experimental apparatus described in this application embodiment places the cable 10 to be tested into the first receiving cavity 200A of the experimental chamber 200. The contaminant simulation mechanism 300 simulates the contaminants and flowing air conditions in a real-world usage environment within the first receiving cavity 200A. When simulating contaminant adhesion on the cable 10, the movable door 210 closes the detection port 200B. When it is necessary to obtain information on contaminant adhesion on the surface of the cable 10, the drive mechanism 400 drives the scanning mechanism 500 to open the movable door 210. The scanning mechanism 500 enters the first receiving cavity 200A through the detection port 200B to obtain a scanning image of the surface contaminants on the cable 10. After acquisition, the scanning mechanism 500 exits the first receiving cavity 200A, and the movable door 210 closes the detection port 200B to prevent contaminants from leaking from the experimental chamber 200.

[0046] The cable surface contaminant adhesion experimental device described in this application can analyze the change process of contaminant adhesion on the cable under test 10 over time by acquiring images at different times through the scanning mechanism 500. This provides experimental basis for cable development, improves the stability and safety of the cable, and has the advantage of being easy to use.

[0047] Combination Figures 4 to 6 The diagram shows a schematic of the drive mechanism 400 of the cable surface contaminant adhesion experimental device according to one embodiment of this application. In some embodiments, the drive mechanism 400 includes a first drive unit 410, a support plate 420 and a sliding wheel 430. The first drive unit 410 is mounted on the experimental platform 100 and is drivenly connected to the support plate 420. The drive direction of the first drive unit 410 is set towards the detection port 200B. The scanning mechanism 500 is mounted on the support plate 420. The sliding wheel 430 is rotatably mounted on the side of the support plate 420 near the experimental platform 100 and is in rolling contact with the experimental platform 100.

[0048] In this embodiment, the first driving unit 410 drives the carrier plate 420 to move. A sliding wheel 430 is provided on the bottom surface of the carrier plate 420 to facilitate its movement. The scanning mechanism 500 is mounted on the carrier plate 420, so that the first driving unit 410 drives the carrier plate 420 and the scanning mechanism 500 to enter the first receiving cavity 200A through the detection port 200B for scanning. After scanning is completed, the carrier plate 420 and the scanning mechanism 500 are driven out of the first receiving cavity 200A. This ensures that the scanning mechanism 500 only enters the first receiving cavity 200A when scanning is required, preventing damage caused by prolonged exposure to a dusty environment and improving operational stability.

[0049] In an alternative embodiment, such as 4 to Figure 6As shown, the side of the movable door 210 away from the experimental platform 100 is rotatably connected to the experimental chamber 200. The experimental platform 100 is provided with a mating groove 100A. The experimental platform 100 also includes a second drive unit 110 and a pressure block 120. The second drive unit 110 is installed in the mating groove 100A, and the pressure block 120 is drivenly connected to the second drive unit 110. When the movable door 210 closes the probe port 200B, the side of the movable door 210 near the experimental platform 100 is positioned in the mating groove 100A, and the second drive unit 110 drives the pressure block 120 to abut against the movable door 210. Specifically, the upper edge of the movable door 210 is hinged to the experimental chamber 200.

[0050] In this embodiment, the upper end of the movable door 210 is hinged to the upper side of the detection port 200B. When the movable door 210 is closed, its lower side is positioned within the mating groove 100A. When closed, the second drive unit 110 drives the pressure block 120 to abut against the movable door 210, ensuring a tight seal and preventing contaminant leakage. When the support plate 420 and the scanning mechanism 500 enter, the second drive unit 110, in conjunction with the support plate 420 and the scanning mechanism 500, pushes the movable door 210 open, allowing the support plate 420 and the scanning mechanism 500 to enter the first receiving cavity 200A. Throughout the entire movement process, the movable door 210 remains on the scanning mechanism 500, providing protection and significantly preventing contaminants from falling onto the scanning mechanism 500.

[0051] In one exemplary embodiment, the second drive unit 110 is a drive cylinder.

[0052] In an alternative embodiment, such as 4 to Figure 6 As shown, the first drive unit 410 includes a drive motor 411, a lead screw 412, a mating block 413, and a bearing seat 414. The drive motor 411 and the bearing seat 414 are both mounted on the experimental platform 100. One end of the lead screw 412 is connected to the drive motor 411, and the other end of the lead screw 412 is mounted on the bearing seat 414. The mating block 413 is provided with a threaded hole, and the mating block 413 is movably mounted on the lead screw 412 through the threaded hole. The mating block 413 is also connected to the support plate 420.

[0053] In this embodiment, the drive motor 411 drives the lead screw 412 to rotate, thereby causing the mating block 413 to move axially along the lead screw 412. The position of the mating block 413 can be precisely controlled by driving the lead screw 412 to rotate. The mating block 413 is connected to the support plate 420, thereby causing the support plate 420 to move axially along the lead screw 412. A bearing seat 414 is also provided at the end of the lead screw 412 away from the drive motor 411, improving the stability of the lead screw 412's rotation and providing advantages such as high driving precision and good stability.

[0054] In an alternative embodiment, such as 4 to Figure 6 As shown, the support plate 420 has an extension 421 at one end near the experimental chamber 200, and the experimental table 100 has a support block 130 on the side of the mating groove 100A away from the drive mechanism 400. When the sliding wheel 430 slides into the mating groove 100A, the extension 421 abuts against the support block 130. Since the experimental table 100 has a mating groove 100A at the bottom of the probe port 200B, in order to prevent the sliding wheel 430 from losing support when sliding into the mating groove 100A, an extension is provided at one end of the support plate 420 facing the experimental chamber 200. When the sliding wheel 430 slides into the mating groove 100A, the extension 421 abuts against the support block 130, thereby providing support for the support plate 420 and preventing damage to the support plate 420 due to uneven force, or damage to the scanning mechanism 500.

[0055] In one exemplary embodiment, a ball bearing is embedded in the lower surface of the extension 421 to reduce friction between the extension 421 and the support block 130 and improve stability in use.

[0056] In an alternative embodiment, such as 4 to Figure 6 As shown, the scanning mechanism 500 also includes a top door member 510, which is installed at one end of the scanning mechanism 500 near the movable door 210. The top door member 510 is used to abut against the movable door 210. By providing the top door member 510, when the scanning mechanism 500 pushes the movable door 210, the top door member 510 first contacts and pushes the movable door 210, and lifts the movable door 210 during the movement, thus preventing the scanning mechanism 500 from directly impacting the movable door 210 and preventing damage to the scanning mechanism 500.

[0057] In an optional embodiment, such as Figure 7 As shown, the pollutant simulation mechanism 300 includes a loading box 310, a feeding hopper 320, and a dust blowing assembly 330. The loading box 310 is provided with a second receiving cavity 310A. The feeding hopper 320 is installed in the loading box 310, and the feeding channel 320A of the feeding hopper 320 is connected to the second receiving cavity 310A. The second receiving cavity 310A is connected to the first receiving cavity 200A through the dust blowing assembly 330.

[0058] In this embodiment, by connecting the feed hopper 320 to the second receiving cavity 310A, contaminants can be input into the second receiving cavity 310A through the feed hopper 320. These contaminants include, but are not limited to, dust, grease, and oxides. The contaminants in the second receiving cavity 310A are blown into the first receiving cavity 200A by the dust blowing assembly 330, causing the test cable 10 in the first receiving cavity 200A to be covered with contaminants, simulating the distribution of contaminants when the test cable 10 is in a real environment.

[0059] In an optional embodiment, such as Figure 7As shown, the loading box 310 is provided with a first air outlet 310B and a first air inlet 310C, the experimental chamber 200 is provided with a second air inlet 200C and a second air outlet 200D, and the dust blowing assembly 330 includes a first air pump 331 and a second air pump 332. The first air outlet 310B and the second air inlet 200C are connected through the first air pump 331, and the second air outlet 200D is connected through the second air pump 332. Further, the first air outlet 310B is connected to the first air pump 331 through a first connecting pipe 361, and the first air inlet 310C is connected to the second air pump 332 through a second connecting pipe 362.

[0060] In this embodiment, a first air pump 331 and a second air pump 332 are set up. The first air pump 331 blows air from the second receiving cavity 310A into the first receiving cavity 200A, and the second air pump 332 blows air from the first receiving cavity 200A into the second receiving cavity 310A, thereby forming an air circulation flow between the first receiving cavity 200A and the second receiving cavity 310A, thereby continuously blowing pollutants in the second receiving cavity 310A into the first receiving cavity 200A, simulating the wind conditions in a natural environment, so as to conduct a surface pollutant adhesion experiment on the cable 10 under test.

[0061] In an optional embodiment, such as Figure 8 As shown, the pollutant simulation mechanism 300 also includes a feed opening / closing component 341 and a feed driving unit 342. The feed opening / closing component 341 is disposed in the feed channel 320A, and the feed driving unit 342 is installed in the feed hopper 320. The feed driving unit 342 is drivenly connected to the feed opening / closing component 341 to drive the feed opening / closing component 341 to open or close the feed channel 320A. Specifically, the feed driving unit 342 is a servo motor. By setting the feed opening / closing component 341 and the feed driving unit 342 in the feed channel 320A of the feed hopper 320, when feeding is required, the feed driving unit 342 drives the feed opening / closing component 341 to open the feed channel 320A. When feeding is completed, the feed driving unit 342 drives the feed opening / closing component 341 to close the feed channel 320A, preventing pollutants in the second receiving cavity 310A from leaking out of the feed channel 320A.

[0062] In an optional embodiment, such as Figure 7 As shown, the first air outlet 310B is located on one side of the loading box 310, and the first air inlet 310C is located on the opposite side of the loading box 310 opposite to the first air outlet 310B. The bottom surface of the second receiving cavity 310A is set as an inclined surface 311, and the first air outlet 310B is located at the lowest point of the inclined surface 311. By setting the bottom surface of the second receiving cavity 310A as an inclined surface 311 and setting the first air outlet 310B for outputting pollutants at the lowest point of the inclined surface 311, pollutants are easily blown out from the first air outlet 310B, avoiding pollutant accumulation and improving efficiency.

[0063] In an optional embodiment, such as Figure 7 As shown, the bottom of the feed hopper 320 extends into the second receiving cavity 310A to reduce the leakage of pollutants from the feed hopper 320 caused by flowing air.

[0064] In an optional embodiment, for ease of operation, the feed channel 320A of the feed hopper 320 adopts a square inner hole structure, and the feed opening and closing component 341 is also a square structure. The square structure can reduce the insertion gap when inserted into the loading box 310, and when installed with the flange block 350, it can further ensure the installation stability of the feed hopper 320.

[0065] In an optional embodiment, the cable surface contaminant adhesion experimental apparatus further includes a thermometer disposed in the first receiving cavity 200A. The thermometer is used to measure the temperature of the surface of the cable 10 under test, in order to better analyze the trend of contaminant adhesion changes with time and electrothermal temperature.

[0066] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An experimental apparatus for testing the adhesion of contaminants to a cable surface, characterized in that, include: An experimental platform (100) and an experimental chamber (200) are provided. The experimental chamber (200) is disposed on the experimental platform (100). The experimental chamber (200) is provided with a first receiving cavity (200A) and a detection port (200B). The detection port (200B) is connected to the first receiving cavity (200A). The first receiving cavity (200A) is used to place the cable (10) to be tested. The experimental chamber (200) also includes a movable door (210). The movable door (210) is movably disposed at the detection port (200B). A pollutant simulation mechanism (300) is connected to the experimental chamber (200) and communicates with the first receiving cavity (200A); Drive mechanism (400), said drive mechanism (400) is mounted on the experimental platform (100); and The scanning mechanism (500) is connected to the driving mechanism (400). The driving mechanism (400) drives the scanning mechanism (500) to enter or exit the first receiving cavity (200A) through the detection port (200B). The scanning mechanism (500) is used to acquire surface contaminant scanning images of the cable under test (10).

2. The experimental apparatus for the adhesion of contaminants to the cable surface according to claim 1, characterized in that: The driving mechanism (400) includes a first driving unit (410), a support plate (420), and a sliding wheel (430). The first driving unit (410) is mounted on the experimental platform (100) and is drivenly connected to the support plate (420). The driving direction of the first driving unit (410) is set towards the detection port (200B). The scanning mechanism (500) is mounted on the support plate (420). The sliding wheel (430) is rotatably mounted on the side of the support plate (420) close to the experimental platform (100) and is in rolling contact with the experimental platform (100).

3. The experimental apparatus for the adhesion of contaminants to the cable surface according to claim 2, characterized in that: The movable door (210) is rotatably connected to the experimental chamber (200) on the side away from the experimental platform (100). The experimental platform (100) is provided with a mating groove (100A). The experimental platform (100) also includes a second drive unit (110) and a pressure block (120). The second drive unit (110) is installed in the mating groove (100A). The pressure block (120) is drivenly connected to the second drive unit (110). When the movable door (210) closes the probe port (200B), the side of the movable door (210) near the experimental platform (100) is set in the mating groove (100A). The second drive unit (110) drives the pressure block (120) to abut against the movable door (210).

4. The experimental apparatus for the adhesion of contaminants to the cable surface according to claim 2, characterized in that: The first drive unit (410) includes a drive motor (411), a lead screw (412), a mating block (413), and a bearing seat (414). The drive motor (411) and the bearing seat (414) are both mounted on the experimental platform (100). One end of the lead screw (412) is connected to the drive motor (411), and the other end of the lead screw (412) is mounted on the bearing seat (414). The mating block (413) is provided with a threaded hole. The mating block (413) is movably mounted on the lead screw (412) through the threaded hole, and the mating block (413) is connected to the bearing plate (420).

5. The experimental apparatus for the adhesion of contaminants to the cable surface according to claim 3, characterized in that: The support plate (420) has an extension (421) at one end near the experimental chamber (200), and the experimental table (100) has a support block (130) on the side of the mating groove (100A) away from the driving mechanism (400). When the sliding wheel (430) slides to the mating groove (100A), the extension (421) abuts against the support block (130).

6. The experimental apparatus for the adhesion of contaminants to the cable surface according to claim 1, characterized in that: The scanning mechanism (500) further includes a top door component (510), which is installed at one end of the scanning mechanism (500) near the movable door (210) and is used to abut against the movable door (210).

7. The experimental apparatus for testing the adhesion of contaminants to cable surfaces according to any one of claims 1-6, characterized in that: The pollutant simulation mechanism (300) includes a loading box (310), a feeding hopper (320), and a dust blowing assembly (330). The loading box (310) is provided with a second receiving cavity (310A). The feeding hopper (320) is installed in the loading box (310), and the feeding channel (320A) of the feeding hopper (320) is connected to the second receiving cavity (310A). The second receiving cavity (310A) is connected to the first receiving cavity (200A) through the dust blowing assembly (330).

8. The experimental apparatus for the adhesion of contaminants to the cable surface according to claim 7, characterized in that: The loading box (310) is provided with a first air outlet (310B) and a first air inlet (310C), the experimental chamber (200) is provided with a second air inlet (200C) and a second air outlet (200D), the dust blowing assembly (330) includes a first air pump (331) and a second air pump (332), the first air outlet (310B) and the second air inlet (200C) are connected through the first air pump (331), and the first air inlet (310C) and the second air outlet (200D) are connected through the second air pump (332).

9. The experimental apparatus for the adhesion of contaminants to the cable surface according to claim 7, characterized in that: The pollutant simulation mechanism (300) further includes a feed opening and closing component (341) and a feed driving unit (342). The feed opening and closing component (341) is disposed in the feed channel (320A), and the feed driving unit (342) is installed in the feed hopper (320). The feed driving unit (342) is drivenly connected to the feed opening and closing component (341) to drive the feed opening and closing component (341) to open or close the feed channel (320A).

10. The experimental apparatus for the adhesion of contaminants to the cable surface according to claim 8, characterized in that: The first air outlet (310B) is located on one side of the loading box (310), and the first air inlet (310C) is located on the other side of the loading box (310) opposite to the first air outlet (310B). The bottom surface of the second receiving cavity (310A) is set as an inclined surface (311), and the first air outlet (310B) is located at the lowest point of the inclined surface (311).

Images