A device for testing the aging of a superconducting cable and a method of using the same

Abstract

This invention discloses an aging test device for superconducting cables and its usage method. The device includes a high-temperature chamber with a hinged door on one side. Sliding blocks are mounted on both sides of the chamber's interior. An insulation box is mounted on one side of one of the sliding blocks. A motor is horizontally connected inside the insulation box, and a rotating shaft is rotatably mounted on one side of the insulation box. Bevel gears are fixedly fitted onto both the rotating end of the motor and one end of the shaft, with the two bevel gears meshing. After the superconducting cable is tested, an electric push rod is activated to push a pull rod outwards, thereby moving the superconducting cable out of the high-temperature chamber. This facilitates the unloading of the superconducting cable, eliminating the need for testing personnel to enter the high-temperature environment, reducing workload and operational risks. It also protects the superconducting cable from further damage and helps reduce operational risks and labor intensity for testing personnel, improving work safety and comfort.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and in particular to an aging testing device for superconducting cables and its usage method. Background Technology

[0002] Superconducting cables are wires that use superconductors to conduct current. They offer advantages such as high capacity, low loss, energy saving, and environmental friendliness, and are widely used in the power industry. They can transmit current at extremely low temperatures without energy loss. However, superconducting cables undergo aging after prolonged use, which affects their performance and reliability. Therefore, aging tests on superconducting cables are necessary to assess their lifespan and performance degradation. Currently, there are various aging test methods for superconducting cables, such as high temperature, low temperature, shock resistance, and humidity tests. High temperature tests typically involve placing the cables in a high-temperature chamber. However, the high-temperature chambers in existing high-temperature aging test devices still have certain shortcomings and need improvement. Existing aging testing devices require manual operation for both placing and removing superconducting cables from the high-temperature chamber. After testing, personnel must also enter the chamber to retrieve the cables. This not only wastes manpower but also poses safety risks. Manual operation may introduce additional errors or accidental injuries and poses risks to the health of testing personnel. Furthermore, removing the cables from the high-temperature chamber is time-consuming and the entire process can be cumbersome, impacting testing efficiency and limiting the equipment's usage frequency and operational capacity. Therefore, this paper proposes an aging testing device and its usage method for superconducting cables to overcome these shortcomings. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies, such as the inconvenience of material removal after testing, and to propose an aging test device for superconducting cables and its usage method.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An aging test device for superconducting cables includes a high-temperature chamber with a hinged door on one side. Slider blocks are slidably installed on both sides of the interior of the high-temperature chamber. A heat insulation box is installed on one side of one of the sliders. A motor is horizontally connected inside the heat insulation box. A rotating shaft is rotatably installed on one side of the heat insulation box. Bevel gears are fixedly sleeved on both the rotating end of the motor and one end of the rotating shaft, and the two bevel gears mesh. One end of the rotating shaft passes through a side plate of the heat insulation box and is fixedly connected to a fixing plate. A fixing plate is also connected to one side of the other slider. Sliding frames are installed at both ends of the fixing plate. A connecting shaft is vertically rotatably installed in the middle of the fixing plate. A clamping frame is threaded onto the bottom end of the connecting shaft. A superconducting cable body is connected between the fixing plate and the clamping frame.

[0005] Electric push rods are horizontally installed on both sides of the high-temperature chamber. The moving ends of the two electric push rods are connected to pull rods. One end of each pull rod is connected to one side of each of the two sliders. A discharge chute is opened inside the cover. A rotating rod is rotatably installed on the top of the discharge chute. A baffle is fixedly sleeved on the rotating rod. Torsion springs are connected between the two sides of the baffle and the cover. Two torsion springs are respectively sleeved on the two ends of the rotating rod. A baffle strip is installed at the bottom of the discharge chute, and the baffle strip contacts one side of the baffle.

[0006] Preferably, mounting bases are installed on both sides of the inner side wall of the high-temperature chamber, and several heating tubes are installed at equal intervals between the two mounting bases.

[0007] Preferably, two temperature sensors are vertically connected to the top of the high-temperature chamber, and a vent is provided on one side of the high-temperature chamber.

[0008] Preferably, a connecting seat is installed on one side of the high-temperature chamber, and one end of the electric push rod is connected to one side of the connecting seat.

[0009] Preferably, a controller and a display are installed on one side of the door, and the controller and display are electrically connected to the temperature sensor. A viewing window is provided on one side of the door.

[0010] Preferably, a limiting disc is installed at the bottom of the connecting shaft, the limiting disc is located at the bottom of the clamping frame, and the bottom of the connecting shaft is provided with threads, and the clamping frame is threadedly fitted onto the bottom of the connecting shaft.

[0011] Preferably, four arc-shaped grooves are provided on one side of both the clamping frame and the fixing plate, and limit angles are installed at both ends of the clamping frame.

[0012] Preferably, the two ends of the clamping frame are vertically slidably installed between the two slide frames and the two ends of the fixing plate, and the limiting angle is located at the top of the slide frame.

[0013] Preferably, a limiting groove is provided on one side of the baffle, and the baffle bar contacts the limiting groove.

[0014] An aging test device for superconducting cables and its usage method, the usage method including the following steps: The first step is to horizontally install several superconducting cables to be tested into the arc-shaped groove between the fixing plate and the clamping frame. The arc-shaped groove facilitates the positioning of the superconducting cables. At this time, the rotating connecting shaft, under the action of the thread, limits the two ends of the clamping frame through the two sliding frames, thereby driving the clamping frame to move upward to stretch and fix the two ends of the superconducting cables, thus ensuring that the superconducting cables will not loosen or shift during the test.

[0015] The second step involves fixing the superconducting cable body, then activating the electric push rod to move the pull rod, which in turn moves the heat insulation chamber to move the fixing plate, allowing the superconducting cable body to enter the high-temperature chamber for high-temperature aging testing. At this point, the cover is closed, and the heating element is activated to heat the high-temperature chamber. The motor is then activated, driving the bevel gear to rotate, which in turn drives the rotating shaft. This causes the fixing plate to slowly rotate the superconducting cable body to be tested around the rotating shaft, ensuring uniform heating of all surfaces of the superconducting cable body, increasing the accuracy of the high-temperature test results. The superconducting cable body can be observed through the viewing window, and the temperature sensor detects the temperature inside the high-temperature chamber and transmits the signal to the controller, allowing the temperature to be displayed visually.

[0016] Third, after the test is completed, turn off the heating element. At this time, the electric push rod can be activated to push the pull rod outward, thereby driving the heat insulation box to move the fixing plate out of the high-temperature chamber. At this time, the fixing plate and the clamping frame abut against and push the baffle outward. As the baffle rotates along the rotating rod, the torsion spring is compressed, allowing the superconducting cable to be moved out of the discharge chute. After that, the torsion spring will spring the baffle back to a vertical position, and the baffle bar can abut against the baffle to prevent the baffle from rotating too much and entering the high-temperature chamber. At this time, the baffle seals the discharge chute, thereby preventing the temperature inside the high-temperature chamber from escaping through the discharge chute during the test. This facilitates the discharge of the superconducting cable, and the test personnel do not need to enter the high-temperature environment themselves, reducing the workload and operational risks.

[0017] The present invention has the following beneficial effects: 1. With the combined action of the baffle and the pull rod, after the superconducting cable body is tested, the electric push rod is activated to push the pull rod outward, thereby moving the superconducting cable body out of the high-temperature chamber. The torsion spring will spring the baffle back to the vertical position, sealing the discharge chute through the baffle. This prevents the temperature inside the high-temperature chamber from escaping through the discharge chute during testing, facilitating the discharge of the superconducting cable body. The testing personnel do not need to enter the high-temperature environment, reducing the workload and operational risks. It can also protect the superconducting cable body from additional damage and help reduce the operational risks and labor intensity of the testing personnel, improving work safety and comfort. 2. With the cooperation of the connecting shaft and the clamping frame, several superconducting cables are horizontally installed in the arc-shaped groove when fixing the superconducting cable body. The arc-shaped groove facilitates the positioning and fixing of the superconducting cable body. At this time, rotating the connecting shaft can drive the clamping frame to move to the top to stretch and fix the two ends of the superconducting cable body. This ensures that the superconducting cable body will not loosen or shift during the test, thereby ensuring the accuracy and reliability of the test results and avoiding unnecessary vibration or displacement of the superconducting cable body, which could lead to interference or distortion of the test results. 3. With the cooperation of the rotating shaft and the fixed plate, the motor is started when testing the superconducting cable body, which drives the bevel gear to rotate. This causes the meshing bevel gear to drive the rotating shaft to rotate, thereby causing the fixed plate to slowly rotate the superconducting cable body to be tested around the rotating shaft. This ensures that all surfaces of the superconducting cable body are heated evenly, increases the accuracy of the high-temperature test results, and thus improves the authenticity and reliability of the results of the high-temperature aging test of the superconducting cable body. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the internal structure of the high-temperature chamber of an aging test device for superconducting cables proposed in this invention. Figure 2 This is a three-dimensional structural schematic diagram of an aging test device for superconducting cables proposed in this invention; Figure 3 This is an exploded structural diagram of the connection between the cover and the baffle of an aging test device for superconducting cables proposed in this invention. Figure 4 This is a three-dimensional structural diagram of the connection between the baffle and the rotating rod of the aging test device for superconducting cables proposed in this invention; Figure 5 This is a top view of the connection between the slider and the heat insulation box of the aging test device for superconducting cables proposed in this invention.

[0019] In the diagram: 1. High-temperature chamber; 101. Mounting base; 102. Heating element; 103. Temperature sensor; 104. Vent hole; 105. Connecting base; 106. Superconducting cable body; 2. Cover door; 201. Controller; 202. Display; 203. Viewing window; 3. Slider; 4. Insulation box; 5. Motor; 6. Rotating shaft; 7. Bevel gear; 8. Fixing plate; 9. Sliding frame; 10. Connecting shaft; 1001. Limiting disc; 1002. Thread; 11. Clamping frame; 1101. Arc groove; 1102. Limiting angle; 12. Electric push rod; 13. Pull rod; 14. Rotating rod; 15. Baffle; 1501. Limiting groove; 16. Torsion spring; 17. Stop bar. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Reference Figure 1-5An aging test device for superconducting cables includes a high-temperature chamber 1. Mounting seats 101 are installed on both inner side walls of the high-temperature chamber 1. Several heating tubes 102 are equidistantly installed between the two mounting seats 101. Two temperature sensors 103 are vertically connected to the top of the high-temperature chamber 1. A vent 104 is provided on one side of the high-temperature chamber 1. A connecting seat 105 is installed on one side of the high-temperature chamber 1. One end of an electric push rod 12 is connected to one side of the connecting seat 105. A cover 2 is hinged to one side of the high-temperature chamber 1, and a controller is installed on one side of the cover 2. The controller 201 and the display 202 are electrically connected to the temperature sensor 103. A viewing window 203 is provided on one side of the cover 2. Sliding blocks 3 are slidably installed on both sides of the interior of the high-temperature chamber 1. A heat insulation box 4 is installed on one side of one of the sliding blocks 3. A motor 5 is horizontally connected inside the heat insulation box 4. A rotating shaft 6 is rotatably installed on one side of the heat insulation box 4. A bevel gear 7 is fixedly sleeved on the rotating end of the motor 5 and one end of the rotating shaft 6. The two bevel gears 7 mesh. One end of the rotating shaft 6 passes through one side plate of the heat insulation box 4 and is fixedly connected to a fixed... Plate 8, and another slider 3 has a fixed plate 8 connected to one side. Slide frames 9 are installed at both ends of the fixed plate 8. A connecting shaft 10 is vertically rotatably installed in the middle of the fixed plate 8. A limiting disc 1001 is installed at the bottom of the connecting shaft 10. The limiting disc 1001 can prevent the clamping frame 11 from falling out of the slide frame 9 during the movement of the clamping frame 11 to the bottom. The limiting disc 1001 is located at the bottom of the clamping frame 11. The bottom of the connecting shaft 10 is provided with a thread 1002. The clamping frame 11 is threaded onto the bottom of the connecting shaft 10 through the thread 1002. The thread 1002 facilitates... The clamping frame 11 is moved up and down. The clamping frame 11 is threaded onto the bottom end of the connecting shaft 10. Four arc-shaped grooves 1101 are opened on the corresponding side of the clamping frame 11 and the fixing plate 8. Limiting angles 1102 are installed at both ends of the clamping frame 11. The limiting angles 1102 can prevent the clamping frame 11 from falling out of the sliding frame 9 during the movement of the clamping frame 11 to the bottom. The two ends of the clamping frame 11 are vertically slidably installed between the two sliding frames 9 and the two ends of the fixing plate 8, and the limiting angles 1102 are located at the top of the sliding frames 9. A superconducting cable body 106 is connected between the fixing plate 8 and the clamping frame 11.

[0022] Electric push rods 12 are horizontally installed on both sides of the high-temperature chamber 1. The moving ends of the two electric push rods 12 are connected to pull rods 13. One end of the two pull rods 13 is connected to one side of the two sliders 3. The inside of the cover 2 is provided with a discharge chute. A rotating rod 14 is rotatably installed on the top of the discharge chute. A baffle 15 is fixedly sleeved on the rotating rod 14. A limiting groove 1501 is opened on one side of the baffle 15. The baffle strip 17 contacts the limiting groove 1501. Torsion springs 16 are connected between the two sides of the baffle 15 and the cover 2. The two torsion springs 16 are respectively sleeved on the two ends of the rotating rod 14. A baffle strip 17 is installed at the bottom of the discharge chute. The baffle strip 17 contacts one side of the baffle 15.

[0023] An aging test device for superconducting cables and its usage method, the usage method including the following steps: The first step is to horizontally install several superconducting cable bodies 106 to be subjected to aging tests into the arc-shaped groove 1101 between the fixing plate 8 and the clamping frame 11. The arc-shaped groove 1101 facilitates the positioning of the superconducting cable body 106. At this time, the rotating connecting shaft 10, under the action of the thread 1002, limits the two ends of the clamping frame 11 through the two sliding frames 9, thereby driving the clamping frame 11 to move upward to stretch and fix the two ends of the superconducting cable body 106, thus ensuring that the superconducting cable body 106 will not loosen or shift during the test.

[0024] The second step involves fixing the superconducting cable body 106, then activating the electric push rod 12 to move the pull rod 13, which in turn moves the heat insulation box 4 to move the fixing plate 8, allowing the superconducting cable body 106 to enter the high-temperature chamber 1 for high-temperature aging testing. At this time, the cover door 2 is closed, and the heating tube 102 is activated to heat the interior of the high-temperature chamber 1. The motor 5 is then activated, driving the bevel gear 7 to rotate, which in turn drives the rotating shaft 6 to rotate. This causes the fixing plate 8 to slowly rotate the superconducting cable body 106 to be tested around the rotating shaft 6, ensuring that all surfaces of the superconducting cable body 106 are heated evenly, increasing the accuracy of the high-temperature test results. The superconducting cable body 106 can be observed through the viewing window 203, and the temperature sensor 103 detects the temperature inside the high-temperature chamber 1 and transmits the signal to the controller 201, allowing the temperature to be displayed directly on the display 202.

[0025] Third, after the test is completed, turn off the heating tube 102. At this time, the electric push rod 12 can be activated to push the pull rod 13 outward, thereby driving the heat insulation box 4 to move the fixing plate 8 out of the high temperature chamber 1. At this time, the fixing plate 8 and the clamping frame 11 abut against and push the baffle 15 outward. During the rotation of the baffle 15 along the rotating rod 14, the torsion spring 16 is compressed, so that the superconducting cable body 106 is moved out of the discharge chute. After that, the torsion spring 16 will spring the baffle 15 back to the vertical position. The baffle strip 17 can abut against the baffle 15 to prevent the baffle 15 from rotating too much and entering the high temperature chamber 1. At this time, the baffle 15 seals the discharge chute, thereby preventing the temperature inside the high temperature chamber 1 from escaping through the discharge chute during the test. This facilitates the discharge of the superconducting cable body 106. The test personnel do not need to enter the high temperature environment themselves, reducing the workload and operation risk.

[0026] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An aging test device for superconducting cables, comprising a high-temperature chamber (1), characterized in that: A cover door (2) is hinged to one side of the high-temperature chamber (1). Sliders (3) are slidably installed on both sides of the interior of the high-temperature chamber (1). A heat insulation box (4) is installed on one side of one of the sliders (3). A motor (5) is horizontally connected inside the heat insulation box (4). A rotating shaft (6) is rotatably installed on one side of the heat insulation box (4). A bevel gear (7) is fixedly sleeved on the rotating end of the motor (5) and one end of the rotating shaft (6). The two bevel gears (7) mesh. One end of the rotating shaft (6) passes through one side plate of the heat insulation box (4) and is fixedly connected to a fixing plate (8). A fixing plate (8) is connected to one side of another slider (3). Sliding frames (9) are installed on both ends of the fixing plate (8). A connecting shaft (10) is vertically rotatably installed in the middle of the fixing plate (8). A clamping frame (11) is threaded on the bottom end of the connecting shaft (10). A superconducting cable body (106) is connected between the fixing plate (8) and the clamping frame (11). Electric push rods (12) are horizontally installed on both sides of the high-temperature chamber (1). The moving ends of the two electric push rods (12) are connected to pull rods (13). One end of the two pull rods (13) is connected to one side of the two sliders (3). The inside of the cover (2) is provided with a discharge trough. A rotating rod (14) is rotatably installed on the top of the discharge trough. A baffle (15) is fixedly sleeved on the rotating rod (14). Torsion springs (16) are connected between the two sides of the baffle (15) and the cover (2). The two torsion springs (16) are respectively sleeved on the two ends of the rotating rod (14). A baffle strip (17) is installed at the bottom of the discharge trough. The baffle strip (17) contacts one side of the baffle (15).

2. The aging test device for superconducting cables according to claim 1, characterized in that: The high-temperature chamber (1) has mounting bases (101) installed on both sides of its interior, and several heating tubes (102) are installed at equal intervals between the two mounting bases (101).

3. The aging test device for superconducting cables according to claim 1, characterized in that: Two temperature sensors (103) are vertically connected to the top of the high-temperature chamber (1), and a vent hole (104) is provided on one side of the high-temperature chamber (1).

4. The aging test device for superconducting cables according to claim 1, characterized in that: A connecting seat (105) is installed on one side of the high-temperature chamber (1), and one end of the electric push rod (12) is connected to one side of the connecting seat (105).

5. The aging test device for superconducting cables according to claim 1, characterized in that: A controller (201) and a display (202) are installed on one side of the cover (2). The controller (201) and the display (202) are electrically connected to the temperature sensor (103). A viewing window (203) is provided on one side of the cover (2).

6. The aging test device for superconducting cables according to claim 1, characterized in that: A limiting disc (1001) is installed at the bottom of the connecting shaft (10). The limiting disc (1001) is located at the bottom of the clamping frame (11). A thread (1002) is provided at the bottom of the connecting shaft (10). The clamping frame (11) is threaded onto the bottom of the connecting shaft (10) through the thread (1002).

7. The aging test device for superconducting cables according to claim 1, characterized in that: Four arc-shaped grooves (1101) are provided on one side of the clamping frame (11) and the fixing plate (8), and limit angles (1102) are installed at both ends of the clamping frame (11).

8. The aging test device for superconducting cables according to claim 7, characterized in that: The two ends of the clamping frame (11) are vertically slidably installed between the two sliding frames (9) and the two ends of the fixing plate (8), and the limiting angle (1102) is located at the top of the sliding frame (9).

9. The aging test device for superconducting cables according to claim 1, characterized in that: A limiting groove (1501) is provided on one side of the baffle (15), and the baffle (17) contacts the limiting groove (1501).

10. An aging test apparatus and a method of using the same for a superconducting cable as described in any one of claims 1-9, characterized in that: The method of use includes the following steps: The first step is to horizontally install several superconducting cable bodies (106) to be tested into the arc groove (1101) between the fixing plate (8) and the clamping frame (11). The arc groove (1101) facilitates the positioning of the superconducting cable body (106). At this time, the rotating connecting shaft (10) is driven by the thread (1002) and the two sliding frames (9) limit the two ends of the clamping frame (11), thereby driving the clamping frame (11) to move to the top to stretch and fix the two ends of the superconducting cable body (106), thereby ensuring that the superconducting cable body (106) will not loosen or shift during the test. In the second step, after the superconducting cable body (106) is fixed, the electric push rod (12) is activated to drive the pull rod (13) to move, which in turn drives the heat insulation box (4) to move the fixing plate (8), so that the superconducting cable body (106) enters the high-temperature chamber (1) for high-temperature aging test. At this time, the cover door (2) is closed, and the heating tube (102) is activated to heat the high-temperature chamber (1). At this time, the motor (5) is activated to drive the bevel gear (7) to rotate, which in turn drives the rotating shaft (6) of the meshing bevel gear (7). The fixed plate (8) rotates, causing the superconducting cable body (106) to be tested to rotate slowly around the rotating shaft (6) as the center, so that the superconducting cable body (106) is heated evenly on all sides, increasing the accuracy of the high temperature test results, and the superconducting cable body (106) can be observed from the viewing window (203). At this time, the temperature sensor (103) detects the temperature inside the high temperature chamber (1) and transmits the signal to the controller (201) so that the temperature can be seen intuitively from the display (202). Third, after the test is completed, turn off the heating tube (102). At this time, start the electric push rod (12) to push the pull rod (13) outward, which in turn drives the heat insulation box (4) to move the fixing plate (8) out of the high temperature box (1). At this time, the fixing plate (8) and the clamping frame (11) abut against and push the baffle (15) outward. During the rotation of the baffle (15) along the rotating rod (14), the torsion spring (16) is compressed, so that the superconducting cable body (106) is released from the outlet. After the material is removed from the trough, the baffle (15) is bounced back to the vertical position by the torsion spring (16), and the baffle (17) abuts against the baffle (15) to prevent the baffle (15) from rotating too much and entering the high temperature chamber (1). At this time, the baffle (15) seals the discharge trough, thereby preventing the temperature inside the high temperature chamber (1) from escaping through the discharge trough during the test, which facilitates the discharge of the superconducting cable body (106). The test personnel do not need to enter the high temperature environment themselves, which reduces the workload and operational risks.

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