Thermal aging test box for cable detection

Abstract

The utility model discloses a thermal aging test box for cable detection, which relates to the technical field of cable detection and comprises a first transverse plate, a hoisting unit is mounted on the outer side of the upper surface of the first transverse plate, a test box body is mounted at the bottom end of a hoisting assembly, and a thermal aging unit is mounted on the test box body. A plurality of groups of cable placement units are mounted in the middle of the upper surface of the first transverse plate, and detachable weight units are arranged at the bottom ends of the plurality of groups of cable placement units; the height of the test box body is adjusted through the hoisting unit, a cable is subjected to a thermal aging test through the thermal aging unit, the cable is placed through the cable placing unit, and the cable can be kept in a straightened state through fixing the weight unit and the two ends of the cable. When in use, a cable to be tested is wound on the cable placement unit, and then the weight unit is fixed with the two ends of the cable, so that the cable can be kept in a straightened state, and the cable can be conveniently subjected to a thermal aging detection test.

Description

Technical Field

[0001] This utility model relates to the technical field of cable testing, and in particular to a thermal aging test chamber for cable testing. Background Technology

[0002] Cable thermal aging tests aim to simulate the prolonged heating of cables during actual use. By observing changes in the cable's appearance, mechanical properties, and electrical properties after thermal aging, the heat aging resistance of the cable material is evaluated, thereby ensuring the safety and reliability of the cable in various environments. The working principle involves placing the cable sample in an environment above its normal operating temperature for a certain period, causing an aging reaction in the cable material. The heat aging resistance of the cable material is then evaluated by observing and analyzing the aged cable sample.

[0003] In thermal aging tests, cables are usually cut to a certain length and suspended on hooks or test bars. Then, weights are fixed to the cables to keep them straight. However, the cables are usually fixed by binding, which is inefficient. Therefore, this invention proposes a thermal aging test chamber for cable testing that is different from the existing technology to solve the above-mentioned technical problems. Utility Model Content

[0004] To address the issue of low fixing efficiency when fixing cables with heavy objects, which is typically achieved by binding, this invention provides a thermal aging test chamber for cable testing.

[0005] This utility model provides a thermal aging test chamber for cable testing, which adopts the following technical solution:

[0006] A thermal aging test chamber for cable testing includes a first horizontal plate. A hoisting unit is installed on the outer side of the upper surface of the first horizontal plate. A test chamber is installed at the bottom of the hoisting unit. A thermal aging unit is installed on the test chamber. Multiple sets of cable placement units are installed at the middle position of the upper surface of the first horizontal plate. A detachable weight unit is provided at the bottom of the multiple sets of cable placement units.

[0007] The test chamber height is adjusted by the hoisting unit, the cable is subjected to thermal aging test by the thermal aging unit, the cable is placed by the cable placement unit, and the cable is fixed to both ends by the weight unit, so that the cable can be kept straight.

[0008] By adopting the above technical solution, the cable to be tested is wound on the cable placement unit, and then the cable is fixed to both ends by the weight unit so that the cable can be kept straight. Then, the test chamber is lowered by the hoisting unit and put into contact with the upper surface of the first horizontal plate. The cable is then tested by the heat aging unit.

[0009] Optionally, the cable placement unit includes a second horizontal plate, which is fixed to the upper surface of the first horizontal plate. A mounting vertical plate is installed on the upper surface of the second horizontal plate, and multiple sets of lifting rings are installed on the upper part of the outer wall of the mounting vertical plate for placing cables.

[0010] Optionally, the weight unit includes a clamping frame, and multiple sets of clamping frames are provided. The clamping frames are located at the bottom end of the cable. A second lifting rod is movably arranged on one outer wall of the clamping frame. A clamping plate is installed at the end of the second lifting rod. Multiple sets of springs fixed to the inner wall of the clamping frame are installed on the outer wall of the clamping plate. Anti-slip pads are installed on both the outer wall of the other side of the clamping plate and the inner wall of the clamping frame. Connecting plates are installed on the outer walls of the multiple sets of clamping frames. A first lifting rod is installed on the upper surface of the connecting plate. A counterweight is installed on the lower surface of the connecting plate. Track rods are provided at both ends of the connecting plate, penetrating the connecting plate and fixed to the upper surface of the second horizontal plate, for clamping the cable and keeping it in a vertical state.

[0011] By adopting the above technical solution, the cable to be tested is wound around the lifting ring at the corresponding position. Then, the second lifting rod is held and the clamping plate is pulled outward to move. Then, the first lifting rod at the corresponding position is lifted to drive the connecting plate and the clamping frame to move upward synchronously. The second lifting rod is released, and under the elastic force of the spring, the clamping plate can automatically cooperate with the clamping frame to quickly clamp and fix the bottom end of the cable under the action of the anti-slip pad. The first lifting rod is released, and the cable to be tested can be kept straight under the gravity of the counterweight.

[0012] Optionally, the thermal aging unit includes an electric heating tube and an ultraviolet lamp. Multiple sets of the electric heating tube and the ultraviolet lamp are provided. The multiple sets of electric heating tubes are evenly installed on the outer walls of both sides of the test chamber, and the multiple sets of ultraviolet lamps are evenly installed on the top wall of the inner cavity of the test chamber, for performing thermal aging tests on the cable.

[0013] Optionally, the hoisting unit includes an inverted U-shaped frame, which is fixed to the upper surface of the first horizontal plate. An electrically controlled winch is installed at the middle position of the upper surface of the inverted U-shaped frame. A steel wire rope that passes through the top wall of the inverted U-shaped frame is installed at the output end of the electrically controlled winch. The bottom end of the steel wire rope is fixed to the upper surface of the test chamber for adjusting the height of the test chamber.

[0014] By adopting the above technical solution, after the cable to be tested is wound around the lifting ring at the corresponding position, the electric winch is started to drive the steel wire rope to extend, thereby moving the test chamber downward to the appropriate position. Multiple sets of electric heating tubes are started to heat the cable inside the test chamber, and multiple sets of ultraviolet lamps are started to generate ultraviolet light to irradiate the cable, thereby enabling thermal aging testing of the cable.

[0015] Optionally, vertical slide rails are installed on the inner walls of both sides of the inverted U-shaped frame, and multiple sets of limiting slide rails that are slidably connected to the vertical slide rails are installed on the outer walls of both sides of the test chamber to limit the movement path of the test chamber.

[0016] By adopting the above technical solution, when the test chamber moves up and down, it can drive multiple sets of limiting slides to move synchronously in the inner cavity of the vertical slide, thereby restricting the movement path of the test chamber.

[0017] Optionally, multiple sets of partition vertical plates are evenly installed inside the test chamber.

[0018] By adopting the above technical solution, the space inside the test chamber can be separated by multiple sets of partition vertical plates, which makes it convenient to start the electric heating tube and ultraviolet lamp at the corresponding position for individual testing when the number of cables to be tested is small, thus saving energy.

[0019] In summary, this utility model has at least one of the following beneficial effects:

[0020] This application moves the clamping plate by pulling the second lifting rod outward. Under the elastic force of the spring, the clamping plate can automatically cooperate with the clamping frame to quickly clamp and fix the bottom end of the cable. Under the gravity of the counterweight, the cable to be tested is kept straight, which facilitates quick clamping and fixing of the cable to keep it straight, improves the cable fixing efficiency, and facilitates thermal aging test of the cable. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the front sectional view of the present invention;

[0022] Figure 2 This is a schematic diagram of the right-side cross-sectional structure of this utility model;

[0023] Figure 3 This utility model Figure 1 Enlarged structural diagram of section A in the middle.

[0024] In the diagram: 1. Vertical slide rail; 2. Limiting slide; 3. Electric heating element; 4. First horizontal plate; 5. First lifting rod; 6. Counterweight; 7. Track rod; 8. Second horizontal plate; 9. Mounting vertical plate; 10. Connecting plate; 11. Lifting ring; 12. Inverted U-shaped frame; 13. Test chamber; 14. Electric winch; 15. Steel wire rope; 16. Ultraviolet lamp; 17. Dividing vertical plate; 18. Clamping frame; 19. Second lifting rod; 20. Anti-slip pad; 21. Clamping plate; 22. Spring. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-3 The present invention will be described in further detail below.

[0026] Example 1: This example provides a thermal aging test chamber for cable testing, such as... Figure 1 and 2 As shown, this invention addresses the problem of low fixing efficiency when fixing cables with heavy objects using a binding method. It includes a first horizontal plate 4, with multiple cable placement units installed at the middle of its upper surface. Each cable placement unit includes a second horizontal plate 8, which is fixed to the upper surface of the first horizontal plate 4. A mounting vertical plate 9 is installed on the upper surface of the second horizontal plate 8. Multiple lifting rings 11 are installed at the upper end of the outer wall of the mounting vertical plate 9. Cables to be tested are placed on the outside of the lifting rings 11. A detachable heavy object unit is located below the lifting rings 11. The heavy object unit includes a clamping frame 18, which has multiple sets.

[0027] Combination Figure 1 , 2 In embodiments of this utility model, the clamping frame 18 is disposed at the bottom end of the cable, the longitudinal section of the clamping frame 18 is U-shaped, a second lifting rod 19 is movably disposed on one side of the outer wall of the clamping frame 18, a clamping plate 21 is installed at the end of the second lifting rod 19, the top of the clamping plate 21 is on the same horizontal plane as the top of the clamping frame 18, and multiple sets of springs 22 fixed to the inner wall of the clamping frame 18 are installed on the outer wall of the clamping plate 21.

[0028] Combination Figure 1 , 2 In embodiments of this utility model, anti-slip pads 20 are installed on the outer wall of the other side of the clamping plate 21 and the inner wall of the clamping frame 18. The anti-slip pads 20 are rubber pads. Connecting plates 10 are installed on the outer walls of multiple clamping frames 18. A first lifting rod 5 is installed at the middle position of the upper surface of the connecting plate 10. A counterweight block 6 is installed at the middle position of the lower surface of the connecting plate 10. Track rods 7 are provided at both ends of the connecting plate 10, penetrating the connecting plate 10 and fixed to the upper surface of the second horizontal plate 8. The longitudinal section of the track rod 7 is T-shaped.

[0029] Combination Figure 1 and 2 In an embodiment of this utility model, a hoisting unit is installed on the outer side of the upper surface of the first horizontal plate 4. The hoisting unit includes an inverted U-shaped frame 12, which is fixed on the upper surface of the first horizontal plate 4. An electric winch 14 is installed at the middle position of the upper surface of the inverted U-shaped frame 12. A steel wire rope 15 that penetrates the top wall of the inverted U-shaped frame 12 is installed at the output end of the electric winch 14. A test chamber 13 is installed at the bottom end of the steel wire rope 15, and the bottom end of the test chamber 13 is set to be open.

[0030] Combination Figure 1 and 2In an embodiment of this utility model, a thermal aging unit is installed on the test chamber 13. The thermal aging unit includes an electric heating tube 3 and an ultraviolet lamp 16. Multiple sets of electric heating tubes 3 and ultraviolet lamps 16 are provided. Multiple sets of electric heating tubes 3 are evenly installed on the outer walls of both sides of the test chamber 13, and multiple sets of ultraviolet lamps 16 are evenly installed on the top wall of the inner cavity of the test chamber 13.

[0031] Combination Figure 1 In the embodiments of this utility model, vertical slide rails 1 are installed on the inner walls of both sides of the inverted U-shaped frame 12, and multiple sets of limiting slide rails 2 that are slidably connected to the vertical slide rails 1 are installed on the outer walls of both sides of the test chamber 13 to limit the movement path of the test chamber 13.

[0032] Combination Figure 3 In an embodiment of this utility model, multiple sets of dividing vertical plates 17 are evenly installed in the inner cavity of the test chamber 13, and the bottom end of the dividing vertical plate 17 is in contact with the upper surface of the first horizontal plate 4.

[0033] Working principle: When using the thermal aging test chamber for cable testing, first cut a certain length of the cable to be tested, then wrap the cable to be tested around the lifting ring 11 at the corresponding position, then hold the second lifting rod 19 and pull the clamping plate 21 outward to move it and cause the spring 22 to contract and generate elastic deformation. Then lift the first lifting rod 5 at the corresponding position to drive the connecting plate 10 and the clamping frame 18 to move upward synchronously and make the bottom end of the cable just contact the bottom wall of the inner cavity of the clamping frame 18. Release the second lifting rod 19, and under the elastic force of the spring 22, the clamping plate 21 can automatically cooperate with the clamping frame 18, so that the bottom end of the cable can be quickly clamped and fixed under the action of the anti-slip pad 20.

[0034] Releasing the first lifting rod 5 allows the cable to be tested to remain straight under the weight of the counterweight 6. When the connecting plate 10 moves up and down, it can slide synchronously outside the track rod 7, thereby limiting the movement path of the connecting plate 10, the counterweight 6, and the clamping frame 18. After the cable is installed, the electric winch 14 is started to extend the wire rope 15, which can move the test chamber 13 downward until the bottom of the test chamber 13 contacts the upper surface of the first horizontal plate 4. The external power supply is connected, which can start multiple sets of electric heating tubes 3 to heat the cable inside the test chamber 13. Multiple sets of ultraviolet lamps 16 are started to generate ultraviolet light to irradiate the cable, thereby enabling thermal aging testing of the cable.

[0035] The space inside the test chamber 13 can be separated by multiple sets of vertical partition plates 17, which makes it convenient to start the electric heating tube 3 and ultraviolet lamp 16 at the corresponding position for individual testing when the number of cables to be tested is small, thus saving energy. When the test chamber 13 moves up and down, it can drive multiple sets of limiting slides 2 to move synchronously in the inner cavity of the vertical slide 1, thereby restricting the movement path of the test chamber 13.

[0036] All standard parts used in this utility model document can be purchased from the market. Each component in this utility model document can be customized according to the description and drawings. The specific connection methods of each component adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, and will not be described in detail here.

[0037] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A thermal aging test chamber for cable testing, comprising a first horizontal plate (4), characterized in that: A hoisting unit is installed on the outer side of the upper surface of the first horizontal plate (4). A test chamber (13) is installed at the bottom of the hoisting unit. A thermal aging unit is installed on the test chamber (13). Multiple cable placement units are installed at the middle position of the upper surface of the first horizontal plate (4). A detachable weight unit is provided at the bottom of the multiple cable placement units.

2. The thermal aging test chamber for cable testing according to claim 1, characterized in that: The cable placement unit includes a second horizontal plate (8), which is fixed on the upper surface of the first horizontal plate (4). A mounting vertical plate (9) is installed on the upper surface of the second horizontal plate (8). Multiple sets of lifting rings (11) are installed on the upper part of the outer wall of the mounting vertical plate (9) for placing cables.

3. The thermal aging test chamber for cable testing according to claim 2, characterized in that: The weight unit includes a clamping frame (18), which has multiple sets. The clamping frame (18) is located at the bottom end of the cable. A second lifting rod (19) is movably mounted on one outer wall of the clamping frame (18). A clamping plate (21) is installed at the end of the second lifting rod (19). Multiple sets of springs (22) fixed to the inner wall of the clamping frame (18) are installed on the outer wall of the clamping plate (21). The other outer wall of the clamping plate (21) is connected to the clamping frame. (18) The inner wall is equipped with anti-slip pads (20), and the outer wall of the multiple sets of clamping frames (18) is equipped with connecting plates (10). The upper surface of the connecting plate (10) is equipped with a first lifting rod (5), and the lower surface of the connecting plate (10) is equipped with a counterweight (6). Both ends of the connecting plate (10) are provided with a track rod (7) that penetrates the connecting plate (10) and is fixed to the upper surface of the second horizontal plate (8) for clamping the cable and keeping it in a vertical state.

4. The thermal aging test chamber for cable testing according to claim 1, characterized in that: The thermal aging unit includes an electric heating tube (3) and an ultraviolet lamp (16). Multiple sets of the electric heating tube (3) and the ultraviolet lamp (16) are provided. Multiple sets of the electric heating tube (3) are evenly installed on the outer walls of both sides of the test chamber (13). Multiple sets of the ultraviolet lamp (16) are evenly installed on the top wall of the inner cavity of the test chamber (13) for thermal aging testing of the cable.

5. A thermal aging test chamber for cable testing according to claim 1, characterized in that: The hoisting unit includes an inverted U-shaped frame (12), which is fixed on the upper surface of the first horizontal plate (4). An electric winch (14) is installed at the middle position of the upper surface of the inverted U-shaped frame (12). A wire rope (15) that passes through the top wall of the inverted U-shaped frame (12) is installed at the output end of the electric winch (14). The bottom end of the wire rope (15) is fixed to the upper surface of the test chamber (13) for adjusting the height of the test chamber (13).

6. A thermal aging test chamber for cable testing according to claim 5, characterized in that: The inner walls on both sides of the inverted U-shaped frame (12) are equipped with vertical slide rails (1), and the outer walls on both sides of the test chamber (13) are equipped with multiple sets of limiting slide rails (2) that are slidably connected to the vertical slide rails (1) to limit the movement path of the test chamber (13).

7. A thermal aging test chamber for cable testing according to claim 1, characterized in that: Multiple sets of partition vertical plates (17) are evenly installed in the inner cavity of the test chamber (13).

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