Temperature-controllable test device for monitoring cable

Abstract

A temperature-controllable test device for monitoring a cable. The test device comprises a vertical plate (1), wherein a bottom plate (2) is fixedly connected to a lower end of the vertical plate (1), a second motor (22) is mounted on a rear side of the vertical plate (1), an end of an output shaft of the second motor (22) extends to a front side of the vertical plate (1) and is fixedly connected to a mounting plate (3), a stretching mechanism for stretching a cable is arranged in the mounting plate (3), the stretching mechanism comprises a transmission cavity (12) formed in the mounting plate (3), a first bidirectional reciprocating lead screw (13) is rotationally connected between left and right inner walls of the transmission cavity (12), and a turbine (15) is mounted at a middle end of the first bidirectional reciprocating lead screw (13).

Description

Temperature-controlled test device for cable monitoring

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on September 4, 2023, with application number 202311127236.7, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application belongs to the technical field of cable testing equipment, for example, to a temperature-controllable test device for cable monitoring. Background Art

[0003] The cable intelligent early warning monitoring test platform is a test version of the cable intelligent early warning monitoring platform, based on the temperature-controlled test device for cable monitoring mentioned in patent number CN202010334849.8. It includes an optoelectronic composite cable, a host computer, and a heating test device. During the test phase, the heating test device heats the optoelectronic composite cable to simulate heating at the fault point, such as cable overload or fire. The temperature of the fault hot spot is transmitted to the host computer via the temperature-measuring optical fiber in the composite cable. The host computer analyzes the cable's heating rate and temperature over-limit warning to verify the integrity and stability of the intelligent early warning monitoring platform's operational functions.

[0004] In the related art, the heating test device uses a water tank or oil tank for heating, which is cumbersome to operate and can easily damage the cable. The solution is to heat the cable through the heated insulation layer of the heating mold to simulate the heating of the cable at the fault point. The cable is placed in the cavity of the heating mold, and an electric heating device is provided in the heating mold. The power-on heating operation is simple, easy to use, and easy to control. However, in actual use, the cable cannot be stretched in the heating mold, which can easily cause the cable to stick to the inner wall of the heating film, resulting in uneven heating of the cable.

[0005] Summary of the Invention

[0006] This application addresses the problem that, in actual use of the above-mentioned device, the cable cannot be stretched in the heating mold, which easily causes the cable to adhere to the inner wall of the heating film, resulting in uneven heating of the cable. The following technical solutions are provided:

[0007] A temperature-controllable test device for cable monitoring includes a vertical plate, the lower end of the vertical plate is fixedly connected to a bottom plate, a second motor is mounted on the rear side of the vertical plate, and the output shaft end of the second motor extends to the front side of the vertical plate and is fixedly connected to a mounting plate;

[0008] A stretching mechanism configured to stretch the cable is provided in the mounting plate, the stretching mechanism includes a transmission cavity provided in the mounting plate, a first bidirectional reciprocating screw is rotatably connected between the left and right inner walls of the transmission cavity, a turbine is installed at the middle end of the first bidirectional reciprocating screw, a first motor is installed on the front side of the mounting plate, the output shaft end of the first motor extends into the transmission cavity and is fixedly connected to a linkage rod, a worm is installed on the linkage rod, the worm and the turbine are engaged with each other, two sliders are symmetrically threadedly connected to the first bidirectional reciprocating screw, and a fixing component configured to fix the cable is provided on the front side of each slider;

[0009] Two flip cylinders are symmetrically installed on the upper end of the mounting plate. Swing arms are installed on the two flip cylinders. The front sides of the two swing arms are fixedly connected to a heating mold. A heating cavity is provided in the heating mold, and the heating cavity is provided with a heating cable.

[0010] In one or more embodiments, the heating mold is composed of two semicircular molds, the swing arm located on the left is fixedly connected to the upper mold of the heating mold, and the swing arm located on the right is fixedly connected to the lower mold of the heating mold. An electric heating wire is embedded in the heating mold, and the electric heating wire is laid around the circumference of the heating cavity and is also laid in the extension direction of the heating cavity.

[0011] In one or more embodiments, the fixing assembly includes two mounting blocks fixedly connected to the front sides of the two sliders, a second bidirectional reciprocating screw is rotatably connected between the two mounting blocks, the upper end of the second bidirectional reciprocating screw passes through the mounting block located above and is fixedly connected to a knob, two moving blocks are symmetrically threaded on the second bidirectional reciprocating screw, and the front sides of the two moving blocks are fixedly connected to a fixing plate by bolts.

[0012] In one or more embodiments, a cooling mechanism configured to cool the cable is provided on the front side of the vertical plate, the cooling mechanism includes an air cooler installed on the rear side of the vertical plate, a cavity is opened on the front side of the vertical plate, a hollow plate is fixedly connected to the rear inner wall of the cavity, and a plurality of air outlets are arranged at equal intervals on the hollow plate.

[0013] In one or more embodiments, an air outlet end of the air cooler extends to the interior of the hollow plate, and the air cooler is located below the second motor.

[0014] In one or more embodiments, the inner wall of the heating chamber is covered with a heat insulation layer, and the heat insulation layer is made of aluminum foil.

[0015] In one or more embodiments, the heating mold is made of stainless steel, and the heating cavity is arranged along the length direction of the heating mold.

[0016] In one or more embodiments, both sliders are slidably connected to the front and rear inner walls of the transmission cavity, and the rear side of each moving block is slidably connected to the front side of the slider.

[0017] In one or more embodiments, the first motor, the second motor, and the cooling fan are all mounted on the vertical plate by a plurality of screws. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG1 shows a schematic diagram of the overall structure of an embodiment of the present application;

[0019] FIG2 shows a left side structural cross-sectional view of an embodiment of the present application;

[0020] FIG3 shows a cross-sectional view of the overall structure of an embodiment of the present application;

[0021] FIG4 shows an enlarged view of point A in FIG3 of an embodiment of the present application;

[0022] In the figure: 1. Vertical plate; 2. Bottom plate; 3. Mounting plate; 4. Flip cylinder; 5. Swing arm; 6. Heating mold; 7. Heating chamber; 8. First motor; 9. Slider; 10. Hollow plate; 11. Air outlet; 12. Transmission chamber; 13. First bidirectional reciprocating screw; 14. Worm; 15. Turbine; 16. Linkage rod; 17. Mounting block; 18. Knob; 19. Moving block; 20. Fixed plate; 21. Air cooler; 22. Second motor; 23. Second bidirectional reciprocating screw. DETAILED DESCRIPTION

[0023] The technical solution of this application will be described below with reference to embodiments.

[0024] The present application provides a controllable temperature test device for cable monitoring, as shown in Figures 1 to 4. The controllable temperature test device for cable monitoring includes a riser 1, a bottom plate 2 is fixedly connected to the lower end of the riser 1, a second motor 22 is mounted on the rear side of the riser 1, and the output shaft end of the second motor 22 extends to the front side of the riser 1 and is fixedly connected to a mounting plate 3;

[0025] A stretching mechanism configured to stretch the cable is provided in the mounting plate 3. The stretching mechanism includes a transmission cavity 12 opened in the mounting plate 3. A first bidirectional reciprocating screw 13 is rotatably connected between the left and right inner walls of the transmission cavity 12. A turbine 15 is installed at the middle end of the first bidirectional reciprocating screw 13. A first motor 8 is installed on the front side of the mounting plate 3. The output shaft end of the first motor 8 extends into the transmission cavity 12 and is fixedly connected to a linkage rod 16. A worm 14 is installed on the linkage rod 16. The worm 14 and the turbine 15 are engaged with each other. Two sliders 9 are symmetrically threadedly connected to the first bidirectional reciprocating screw 13. A fixing component configured to fix the cable is provided on the front side of each slider 9.

[0026] Two flip cylinders 4 are symmetrically installed on the upper end of the mounting plate 3, and swing arms 5 are installed on the two flip cylinders 4. The front sides of the two swing arms 5 are fixedly connected to a heating mold 6, and a heating cavity 7 is provided in the heating mold 6. The heating cavity 7 is provided with a heating cable.

[0027] As shown in Figure 1, the heating mold 6 is composed of two semicircular molds. The swing arm 5 on the left is fixedly connected to the upper mold of the heating mold 6, and the swing arm 5 on the right is fixedly connected to the lower mold of the heating mold 6. An electric heating wire is embedded in the heating mold 6. The electric heating wire is laid around the circumference of the heating cavity 7 and is also laid in the extension direction of the heating cavity 7 to ensure temperature consistency in the heating cavity 7.

[0028] As shown in Figures 1 to 4, the fixed assembly includes two mounting blocks 17 fixedly connected to the front sides of the two sliders 9, and a second bidirectional reciprocating screw rod 23 is rotatably connected between the two mounting blocks 17. The upper end of the second bidirectional reciprocating screw rod 23 passes through the mounting block 17 located above and is fixedly connected to a knob 18. Two moving blocks 19 are symmetrically threaded on the second bidirectional reciprocating screw rod 23, and the front sides of the two moving blocks 19 are fixedly connected to a fixed plate 20 by bolts. The two sliders 9 are slidably connected to the front and rear inner walls of the transmission chamber 12, and the rear side of each moving block 19 is slidably connected to the front side of the slider 9.

[0029] As shown in Figures 1 to 2, the front side of the vertical plate 1 is provided with a cooling mechanism configured to cool the cable. The cooling mechanism includes an air cooler 21 installed on the rear side of the vertical plate 1. A cavity is opened on the front side of the vertical plate 1. A hollow plate 10 is fixedly connected to the inner wall of the rear side of the cavity. A plurality of air outlets 11 are evenly spaced on the hollow plate 10. The air outlet end of the air cooler 21 extends to the interior of the hollow plate 10. The air cooler 21 is located below the second motor 22.

[0030] As shown in Figure 1, the inner wall of the heating chamber 7 is covered with an insulation layer, which is made of aluminum foil. The heating mold 6 is made of stainless steel. The heating chamber 7 is arranged along the length direction of the heating mold 6. The first motor 8, the second motor 22 and the air cooler 21 are all installed on the vertical plate 1 by multiple screws.

[0031] Here's how this application works:

[0032] When in use, the heating mold 6 is first opened and closed by the two flip cylinders 4, and then the cable is placed in the heating chamber 7 so that the two ends of the cable are respectively located between the two fixed plates 20, and then the corresponding knob 18 is twisted to drive the two moving blocks 19 to move relative to each other, so that the multiple fixed plates 20 quickly fix the two ends of the cable, and then the heating film 6 is completely closed by the two flip cylinders 4.

[0033] Different fixing components can be installed on the fixing plate 20 by means of bolts, thereby improving the fixing effect of different cables and being adaptable to the fixing operations of different cables.

[0034] Start the first motor 8. After starting, the first motor 8 drives the linkage rod 16 to rotate, causing the worm 14 to rotate. Since the worm 14 and the turbine 15 are engaged with each other, the turbine 15 drives the first bidirectional reciprocating screw 13 to rotate, and finally the two sliders 9 move back to back, stretching the cable, thereby avoiding the cable from sticking to the inner wall of the heating film 6 and improving the heating efficiency of the cable.

[0035] Then, an external power source is connected through the connector, so that the electric heating wire in the heating film 6 is energized, so that the temperature in the heating cavity 7 rises, and the heat is transferred to the cable to perform heating work.

[0036] When the experiment is over, the second motor 22 is started to rotate the entire mounting plate 3. After rotating 90°, the heating film 6 is facing the hollow plate 10. The two flip cylinders 4 are then started to completely open and close the heating film 6, so that the cable is completely exposed to the outside for cooling. Due to the clamping effect of multiple fixing plates 20, the cable will not fall off. The air cooler 21 is then started. After the air cooler 21 is started, cold air is blown toward the cable through multiple air outlets 11, so that the cable can be cooled quickly without waiting for a long cooling process. It also makes it easier for staff to recycle the cable.

[0037] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them.

Claims

1. A temperature-controllable test device for cable monitoring, comprising a vertical plate (1), wherein: The lower end of the vertical plate (1) is fixedly connected to the bottom plate (2), a second motor (22) is installed on the rear side of the vertical plate (1), and the output shaft end of the second motor (22) extends to the front side of the vertical plate (1) and is fixedly connected to a mounting plate (3); A stretching mechanism configured to stretch a cable is arranged in the mounting plate (3), and the stretching mechanism comprises a transmission cavity (12) opened in the mounting plate (3), a first bidirectional reciprocating screw (13) is rotatably connected between the left and right inner walls of the transmission cavity (12), a turbine (15) is installed at the middle end of the first bidirectional reciprocating screw (13), a first motor (8) is installed on the front side of the mounting plate (3), the output shaft end of the first motor (8) extends into the transmission cavity (12) and is fixedly connected to a linkage rod (16), a worm (14) is installed on the linkage rod (16), the worm (14) and the turbine (15) are meshed with each other, two sliders (9) are symmetrically threadedly connected to the first bidirectional reciprocating screw (13), and the front sides of the two sliders (9) are each provided with a fixing component configured to fix the cable; Two flip cylinders (4) are symmetrically mounted on the upper end of the mounting plate (3), and swing arms (5) are mounted on the two flip cylinders (4). The front sides of the two swing arms (5) are commonly and fixedly connected to a heating mold (6), and a heating cavity (7) is arranged inside the heating mold (6), and the heating cavity (7) is arranged as a heating cable.

2. The device according to claim 1, wherein: The heating mold (6) is composed of two semicircular molds, the swing arm (5) located on the left side is fixedly connected to the upper mold of the heating mold (6), and the swing arm (5) located on the right side is fixedly connected to the lower mold of the heating mold (6); an electric heating wire is embedded in the heating mold (6), and the electric heating wire surrounds the circumference of the heating cavity (7) and is laid along the extension direction of the heating cavity (7).

3. The device according to claim 1, wherein: The fixing assembly comprises two mounting blocks (17) fixedly connected to the front sides of the two sliding blocks (9); a second bidirectional reciprocating screw rod (23) is rotatably connected between the two mounting blocks (17); the upper end of the second bidirectional reciprocating screw rod (23) passes through the mounting block (17) located above and is fixedly connected to a knob (18); two moving blocks (19) are symmetrically threadedly connected to the second bidirectional reciprocating screw rod (23); the front sides of the two moving blocks (19) are fixedly connected to a fixing plate (20) by bolts.

4. The device according to claim 1, wherein: A cooling mechanism for cooling the cable is arranged on the front side of the vertical plate (1), the cooling mechanism comprising a cooling fan (21) installed on the rear side of the vertical plate (1), a cavity is provided on the front side of the vertical plate (1), a hollow plate (10) is fixedly connected to the rear inner wall of the cavity, and a plurality of air outlets (11) are arranged at equal intervals on the hollow plate (10).

5. The device according to claim 4, wherein: The air outlet end of the cooling fan (21) extends to the interior of the hollow plate (10), and the cooling fan (21) is located below the second motor (22).

6. The device according to claim 1, wherein: The inner wall of the heating chamber (7) is covered with a heat insulation layer, and the heat insulation layer is made of aluminum foil.

7. The device according to claim 1, wherein: The heating mold (6) is made of stainless steel, and the heating cavity (7) is arranged along the length direction of the heating mold (6).

8. The device according to claim 3, wherein: The two sliders (9) are both slidably connected to the front and rear inner walls of the transmission cavity (12), and the rear side of each moving block (19) is slidably connected to the front side of the slider (9).

9. The device according to claim 4, wherein: The first motor (8), the second motor (22) and the cooling fan (21) are all mounted on the vertical plate (1) by means of a plurality of screws.

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