Degassing device for middle-high voltage cable crosslinking production line

Abstract

The utility model relates to the technical field of cable processing degassing, in particular to a degassing device for a middle-high voltage cable crosslinking production line, which comprises a sealing box, a pressure gauge, a vacuum pump body, a gas delivery pipe, a cable limiting assembly, a low-radiation vibration assembly and an auxiliary exhaust assembly, and is characterized in that the output end of the vacuum pump body is fixedly connected with one end of the gas delivery pipe; the gas conveying pipe penetrates through one side of the top of the sealing box and is tightly attached to the inner surface of the sealing box, the low-radiation vibration assembly is movably connected to the interior of the sealing box, and the auxiliary exhaust assemblies are installed on the two sides of the bottom of the low-radiation vibration assembly. According to the degassing device for the middle-high voltage cable crosslinking production line, high-frequency vibration of 20 kHz to 35 kHz is generated through the double-wafer cantilever, transverse vibration interference is eliminated through the node supporting frame, the tuning fork head makes self-adaptive contact with the curved surface of the cable, vibration energy is focused on the deep layer of an insulating layer, and pressure difference drives gas to be directionally discharged along microcracks generated by vibration.

Description

Technical Field

[0001] This application relates to the field of degassing technology in cable processing, and in particular to a degassing device for a medium- and high-voltage cable cross-linking production line. Background Technology

[0002] A cable is an electrical energy or signal transmission device, usually composed of several or several groups of conductors. A cable is a rope-like cable formed by twisting several or several groups of conductors (each group has at least two conductors) together. Byproducts generated during the cross-linking production process of a cable can affect the quality of the cable. Therefore, the cross-linking byproducts, i.e., degassing, must be removed before the insulated core is shielded.

[0003] A search revealed that publication number CN215118457U discloses a degassing device for a medium- and high-voltage cable cross-linking production line. Through the arrangement of fixed components, elastic components, a first arc-shaped component, a second arc-shaped component, a fixed rod, a horizontal pipe, a vertical pipe, a connecting pipe, a fixed box, a heating plate, a blower, a box door, an insulation pad, and a handle, it can quickly and fully heat the cable during the degassing process in the medium- and high-voltage cable cross-linking production. This allows for faster and more complete precipitation of cross-linking byproducts from the cable, and it is convenient for quickly and fully heating cables of different diameters. This ensures better and faster degassing and production of medium- and high-voltage cables, making it highly practical and suitable for widespread application.

[0004] Regarding the aforementioned technologies, the inventors believe that the following technical defects exist and need to be improved: the above-mentioned device only uses heat conduction to allow gas to diffuse out through heating. For ultra-high voltage and thick insulation layer cables, since this device does not have a related pressure fluctuation structure, the gas migration efficiency within the insulation layer of ultra-high voltage and thick insulation layer cables is reduced, thereby prolonging the degassing time and reducing production efficiency. Utility Model Content

[0005] This application provides a degassing device for a medium- and high-voltage cable cross-linking production line to improve the following technical problems: the above-mentioned device only uses heating to allow gas to diffuse out through heat conduction. For ultra-high voltage and thick insulation layer cables, since this device does not have a related pressure fluctuation structure, the gas migration efficiency in the insulation layer of ultra-high voltage and thick insulation layer cables is reduced, thereby prolonging the degassing time and reducing production efficiency.

[0006] This application provides a degassing device for a medium- and high-voltage cable cross-linking production line, which adopts the following technical solution:

[0007] A degassing device for a medium- and high-voltage cable crosslinking production line includes a sealed box, a pressure gauge, a vacuum pump body, a gas supply pipe, a cable limiting assembly, a low-radio vibration assembly, and an auxiliary exhaust assembly. The pressure gauge is installed on one side of the sealed box. The output end of the vacuum pump body is fixedly connected to one end of the gas supply pipe. The gas supply pipe passes through one side of the top of the sealed box and is tightly fitted to the inner surface of the sealed box. The cable limiting assembly is installed on the bottom inner side of the sealed box. The low-radio vibration assembly is movably connected inside the sealed box. The auxiliary exhaust assembly is installed on both sides of the bottom of the low-radio vibration assembly.

[0008] The sealed box is used to store cables, the pressure gauge is used to detect internal pressure fluctuations in the sealed box, the vacuum pump body, in conjunction with the gas supply pipe, is used to periodically change the vacuum level inside the sealed box, the cable limiting assembly is used to clamp the cable and keep it taut, the low-radius vibration assembly uses high-frequency vibration to migrate the gas inside the insulation layer, and the auxiliary exhaust assembly is used to assist and guide the gas inside the insulation layer to be discharged.

[0009] In one feasible technical solution of this application, the low-radius vibration assembly includes a transverse support, a movable slide, a lifting seat, a Y-axis slide, a bicrystalline cantilever, a node support frame, and a tuning fork. The transverse support is fixedly connected inside the sealed box, the movable slide is slidably connected to the outside of the transverse support, the lifting seat is slidably connected to the outside of the movable slide, the Y-axis slide is slidably connected to the middle of the lifting seat, the bicrystalline cantilever is threadedly connected to the bottom of the Y-axis slide, the node support frame is fixedly connected to the bottom of the bicrystalline cantilever, and the tuning fork is installed at the bottom of the node support frame and used for contacting the cable.

[0010] In one feasible technical solution of this application, the auxiliary exhaust assembly includes a stepper motor, a connecting shaft, a contact block, and a rubber cover. The stepper motor is installed on the outer side of the bottom of the Y-axis slide, the connecting shaft is fixedly connected to the outer side of the output end of the stepper motor, the contact block is welded to the outer side of the connecting shaft, and the rubber cover is adhesively connected to the outer side of the contact block.

[0011] In one feasible technical solution of this application, the cable limiting assembly includes a placement platform, a limiting rod, a positioning plate, and a clamping arm body. The placement platform is fixedly connected inside the sealed box, the positioning plate is slidably connected to the top of the placement platform, the limiting rod passes through the positioning plate and is fixedly connected to the surface of the placement platform, and the clamping arm body is installed in the middle of the positioning plate.

[0012] In one feasible technical solution of this application, a second stepper motor and a locking gear are also provided on one side of the movable slide. The output end of the second stepper motor is fixedly connected to the middle part of the locking gear, and the locking gear is meshed with the inner side of the transverse support.

[0013] In one feasible technical solution of this application, a rack that meshes with the external teeth of the locking gear is also provided on the inner side of the transverse support.

[0014] In one feasible technical solution of this application, a push cylinder and a connecting plate are also provided on the top two sides of the movable slide. The output end of the push cylinder is fixedly connected to the top of the connecting plate, and one side of the connecting plate is fixedly connected to the surface of the lifting seat.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] The degassing device of this apparatus introduces a low-radius vibration component, which works in conjunction with the pressure fluctuations of the vacuum pump body and the gas delivery pipe. Specifically, it generates high-frequency vibrations of 20kHz to 35kHz through a double-crystal cantilever, eliminates lateral vibration interference through a node support frame, and achieves adaptive contact between the tuning fork head and the curved surface of the cable. The vibration energy is focused deep into the insulation layer, and the pressure difference drives the gas to be discharged directionally along the micro-cracks generated by the vibration. At the same time, auxiliary exhaust components added to both sides of the tuning fork accelerate the efficiency of internal gas extraction, and together with the cable limiting component, it achieves a highly efficient degassing effect for cables of different diameters and thicknesses. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the degassing device for a medium- and high-voltage cable cross-linking production line according to an embodiment of this application.

[0019] Figure 2 This is a schematic diagram of the cable limiting assembly in an embodiment of this application.

[0020] Figure 3 This is a schematic diagram of the structure of the low-radius vibration component in the embodiments of this application.

[0021] Figure 4 This is a distribution diagram of the locking gears in the embodiments of this application.

[0022] Figure 5 yes Figure 4Enlarged view of part A in the middle.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Sealed box; 2. Pressure gauge; 3. Vacuum pump body; 4. Gas delivery pipe;

[0025] 5. Cable limiting assembly; 51. Placement platform; 52. Limiting rod; 53. Positioning plate; 54. Clamping arm body;

[0026] 6. Low-amplitude vibration assembly; 61. Lateral support; 62. Moving slide; 63. Lifting seat; 64. Y-axis slide; 65. Dual-crystal cantilever; 66. Node support frame; 67. Tuning fork;

[0027] 7. Auxiliary exhaust assembly; 71. Stepper motor one; 72. Connecting shaft; 73. Contact block; 74. Rubber cover;

[0028] 8. Stepper motor 2; 9. Locking gear; 10. Rack; 11. Push cylinder; 12. Connecting plate; 13. Hydraulic cylinder. Detailed Implementation

[0029] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0030] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0031] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.

[0032] Furthermore, the terms "first" and "second" are used 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 as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0033] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0034] This application discloses a degassing device for a medium- and high-voltage cable cross-linking production line. (Refer to...) Figures 1 to 5 The degassing device for a medium- and high-voltage cable crosslinking production line includes a sealed box 1, a pressure gauge 2, a vacuum pump body 3, a gas supply pipe 4, a cable limiting component 5, a low-radius vibration component 6, and an auxiliary exhaust component 7. The pressure gauge 2 is installed on one side of the sealed box 1. The output end of the vacuum pump body 3 is fixedly connected to one end of the gas supply pipe 4. The gas supply pipe 4 passes through one side of the top of the sealed box 1 and is tightly fitted to the inner surface of the sealed box 1. The cable limiting component 5 is installed on the bottom inside of the sealed box 1. The low-radius vibration component 6 is movably connected inside the sealed box 1. The auxiliary exhaust component 7 is installed on both sides of the bottom of the low-radius vibration component 6.

[0035] The sealed box 1 is used to store cables, the pressure gauge 2 is used to detect internal pressure fluctuations in the sealed box 1, the vacuum pump body 3, together with the gas delivery pipe 4, is used to periodically change the internal vacuum level of the sealed box 1, the cable limiting assembly 5 is used to clamp the cable and keep the cable in a taut state, the low-radius vibration assembly 6 uses high-frequency vibration to migrate the gas in the insulation layer, and the auxiliary exhaust assembly 7 is used to assist and guide the gas inside the insulation layer to be discharged.

[0036] The low-amplitude vibration assembly 6 includes a transverse support 61, a movable slide 62, a lifting seat 63, a Y-axis slide 64, a bicrystalline cantilever 65, a node support frame 66, and a tuning fork 67. The transverse support 61 is fixedly connected inside the sealed box 1. The movable slide 62 is slidably connected to the outside of the transverse support 61. The lifting seat 63 is slidably connected to the outside of the movable slide 62. The Y-axis slide 64 is slidably connected to the middle of the lifting seat 63. The bicrystalline cantilever 65 is threadedly connected to the bottom of the Y-axis slide 64. The node support frame 66 is fixedly connected to the bottom of the bicrystalline cantilever 65. The tuning fork 67 is installed at the bottom of the node support frame 66 and is used to contact the cable.

[0037] The auxiliary exhaust assembly 7 includes a stepper motor 71, a connecting shaft 72, a contact block 73, and a rubber cover 74. The stepper motor 71 is mounted on the outer side of the bottom of the Y-axis slide 64. The connecting shaft 72 is fixedly connected to the outer side of the output end of the stepper motor 71. The contact block 73 is welded to the outer side of the connecting shaft 72. The rubber cover 74 is adhesively connected to the outer side of the contact block 73.

[0038] The cable limiting assembly 5 includes a placement platform 51, a limiting rod 52, a positioning plate 53, and a clamping arm body 54. The placement platform 51 is fixedly connected inside the sealed box 1. The positioning plate 53 is slidably connected to the top of the placement platform 51. The limiting rod 52 passes through the positioning plate 53 and is fixedly connected to the surface of the placement platform 51. The clamping arm body 54 is installed in the middle of the positioning plate 53.

[0039] A stepper motor 8 and a locking gear 9 are also provided on one side of the movable slide 62. The output end of the stepper motor 8 is fixedly connected to the middle of the locking gear 9, and the locking gear 9 is meshed with the inner side of the transverse support 61.

[0040] The inner side of the transverse support 61 is also provided with a rack 10 that meshes with the external teeth of the locking gear 9.

[0041] The top two sides of the movable slide table 62 are also provided with a push cylinder 11 and a connecting plate 12. The output end of the push cylinder 11 is fixedly connected to the top of the connecting plate 12, and one side of the connecting plate 12 is fixedly connected to the surface of the lifting seat 63.

[0042] The general process of using the degassing device for the medium- and high-voltage cable cross-linking production line in this application embodiment is as follows:

[0043] Place the cable to be processed on the placement platform 51, and adjust the spacing of the sliding positioning plate 53 along the limiting rod 52. Start the clamping arm body 54 to pneumatically clamp the cable, setting the pressure to 0.4~0.6MPa to ensure that the contact surface between the cable and the tuning fork 67 remains horizontal. Close the door of the sealing box 1 and confirm that the initial air pressure is normal pressure through the pressure gauge 2. Start the stepper motor 8 to drive the locking gear 9 to move along the rack 10, thereby driving the moving slide 62 to be positioned laterally. Push the cylinder 11 to push the lifting seat 63 to move vertically through the connecting plate 12, and the hydraulic cylinder 13 pushes the Y-axis slide 64 and adjusts its position with the cable limiting component 5 so that the center line of the tuning fork 67 coincides with the cable axis; at the same time, fine-tune the spiral feed mechanism of the Y-axis slide 64 so that the double crystal cantilever 65 is pressed down until the contact force between the tuning fork 67 and the cable surface reaches 5N, confirming that the resonant frequency of the node support frame 66 matches the thickness of the cable insulation layer. Activate the piezoelectric driver of the dual-chip cantilever 65, turn on the vacuum pump body 3 to perform pressure circulation, and drive the connecting shaft 72 to rotate at 10 rpm, causing the corrugated surface of the rubber cover 74 to periodically squeeze the cable surface. The microbubbles generated by the vibration are collected through the guide groove of the contact block 73 to both sides of the auxiliary exhaust assembly 7 and are accelerated outward and discharged into the cable.

[0044] The beneficial technical effects of the degassing device for the medium- and high-voltage cable cross-linking production line in this application are roughly as follows:

[0045] The degassing device of this apparatus introduces a low-radius vibration component, which works in conjunction with the vacuum pump body 3 and the pressure fluctuations of the gas delivery pipe. Specifically, the double crystal cantilever 65 generates a high-frequency vibration of 20kHz to 35kHz, the node support frame 66 eliminates lateral vibration interference, and the tuning fork 67 head makes adaptive contact with the curved surface of the cable. The vibration energy is focused on the deep layer of the insulation layer, and the pressure difference drives the gas to be discharged directionally along the micro-cracks generated by the vibration. At the same time, the auxiliary exhaust components 7 added on both sides of the tuning fork 67 accelerate the efficiency of internal gas extraction, and together with the cable limiting component, it achieves a highly efficient degassing effect for cables of different diameters and thicknesses.

[0046] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A degassing device for a medium- and high-voltage cable cross-linking production line, characterized in that, The system includes a sealed box (1), a pressure gauge (2), a vacuum pump body (3), a gas supply pipe (4), a cable limiting assembly (5), a low-radius vibration assembly (6), and an auxiliary exhaust assembly (7). The pressure gauge (2) is installed on one side of the sealed box (1). The output end of the vacuum pump body (3) is fixedly connected to one end of the gas supply pipe (4). The gas supply pipe (4) passes through one side of the top of the sealed box (1) and is tightly fitted to the inner surface of the sealed box (1). The cable limiting assembly (5) is installed on the inner side of the bottom of the sealed box (1). The low-radius vibration assembly (6) is movably connected to the inside of the sealed box (1). The auxiliary exhaust assembly (7) is installed on both sides of the bottom of the low-radius vibration assembly (6). The sealed box (1) is used to store the cable, the pressure gauge (2) is used to detect the internal pressure fluctuation of the sealed box (1), the vacuum pump body (3) works with the gas supply pipe (4) to periodically change the vacuum level inside the sealed box (1), the cable limiting assembly (5) is used to clamp the cable and keep the cable in a taut state, the low-radius vibration assembly (6) migrates the gas in the insulation layer through high-frequency vibration, and the auxiliary exhaust assembly (7) is used to assist and guide the gas inside the insulation layer to be discharged.

2. The degassing device for a medium- and high-voltage cable cross-linking production line according to claim 1, characterized in that, The low-radius vibration assembly (6) includes a transverse support (61), a movable slide (62), a lifting seat (63), a Y-axis slide (64), a bicrystalline cantilever (65), a node support frame (66), and a tuning fork (67). The transverse support (61) is fixedly connected to the inside of the sealed box (1). The movable slide (62) is slidably connected to the outside of the transverse support (61). The lifting seat (63) is slidably connected to the outside of the movable slide (62). The Y-axis slide (64) is slidably connected to the middle of the lifting seat (63). The bicrystalline cantilever (65) is threadedly connected to the bottom of the Y-axis slide (64). The node support frame (66) is fixedly connected to the bottom of the bicrystalline cantilever (65). The tuning fork (67) is installed at the bottom of the node support frame (66) and is used to contact the cable.

3. The degassing device for a medium- and high-voltage cable cross-linking production line according to claim 2, characterized in that, The auxiliary exhaust assembly (7) includes a stepper motor (71), a connecting shaft (72), a contact block (73), and a rubber cover (74). The stepper motor (71) is mounted on the bottom outer side of the Y-axis slide (64). The connecting shaft (72) is fixedly connected to the outer side of the output end of the stepper motor (71). The contact block (73) is welded to the outer side of the connecting shaft (72). The rubber cover (74) is adhesively connected to the outer side of the contact block (73).

4. The degassing device for a medium- and high-voltage cable cross-linking production line according to claim 1, characterized in that, The cable limiting assembly (5) includes a placement platform (51), a limiting rod (52), a positioning plate (53), and a clamping arm body (54). The placement platform (51) is fixedly connected inside the sealed box (1). The positioning plate (53) is slidably connected to the top of the placement platform (51). The limiting rod (52) passes through the positioning plate (53) and is fixedly connected to the surface of the placement platform (51). The clamping arm body (54) is installed in the middle of the positioning plate (53).

5. The degassing device for a medium- and high-voltage cable cross-linking production line according to claim 2, characterized in that, A stepper motor (8) and a locking gear (9) are also provided on one side of the movable slide (62). The output end of the stepper motor (8) is fixedly connected to the middle of the locking gear (9), and the locking gear (9) is meshed with the inner side of the transverse support (61).

6. The degassing device for a medium- and high-voltage cable cross-linking production line according to claim 5, characterized in that, The inner side of the transverse support (61) is also provided with a rack (10) that meshes with the outer teeth of the locking gear (9).

7. The degassing device for a medium- and high-voltage cable cross-linking production line according to claim 5, characterized in that, The top sides of the movable slide (62) are also provided with a push cylinder (11) and a connecting plate (12). The output end of the push cylinder (11) is fixedly connected to the top of the connecting plate (12), and one side of the connecting plate (12) is fixedly connected to the surface of the lifting seat (63).

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