A medium voltage cable end making operation station

Abstract

The utility model relates to power cable technical field, concretely is a kind of medium voltage cable end head making operation platform, including the operation platform body, support frame and pay-off rack arranged in sequence, pay-off rack is used to carry cable, and support frame is used to support the cable between pay-off rack to operation platform body;Operation platform body has table panel, and table panel is equipped with fixed forceps, and the one end of table panel towards support frame is equipped with the first horizontal cylinder of horizontal arrangement, and the both ends of first horizontal cylinder are equipped with the first vertical cylinder of vertical arrangement;Support frame is equipped with the second horizontal cylinder of horizontal arrangement, and the both ends of second horizontal cylinder are equipped with the second vertical cylinder of vertical arrangement.Cable is introduced by pay-off rack, in turn through the cylinder on support frame, and the cylinder on table panel, finally into fixed forceps and be clamped and fixed.Worker after cable is clamped and fixed, carries out insulation layer peeling, conductor processing and subsequent operation such as terminal crimping.

Description

Technical Field

[0001] This utility model relates to the field of power cable technology, specifically to a medium-voltage cable end-making operation table. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] Medium-voltage cables typically refer to power cables with rated voltages between 6kV and 35kV, mainly used in urban power grids and industrial power supply. When fabricating cable terminations, operators usually need to set up a simple platform on-site. Due to the large diameter range of medium-voltage cables, there is a lack of effective fixing devices during termination, resulting in unsatisfactory quality and efficiency in cable termination fabrication. Utility Model Content

[0004] To address the technical problems mentioned above, this utility model provides a medium-voltage cable end-making workbench. It utilizes a liftable cable-laying frame to support the cable and adjust the laying height. The workbench body uses clamps on its edge to hold and fix the cable, and performs stripping and end-crimping operations at the fixed points. A support frame with rollers is provided between the cable-laying frame and the workbench body to prevent the cable from falling due to its own weight.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a medium-voltage cable end-making operation table, including an operation table body, a support frame, and a cable feeding frame arranged in sequence. The cable feeding frame is used to carry the cable, and the support frame is used to support the cable between the cable feeding frame and the operation table body. The operation table body has a table panel, and a fixing clamp is provided on the table panel. A first horizontal roller is provided at one end of the table panel facing the support frame, and a first vertical roller is provided at both ends of the first horizontal roller. The support frame has a second horizontal roller, and a second vertical roller is provided at both ends of the second horizontal roller.

[0007] As a further implementation, the control panel body includes a control panel frame, with a table panel on the top surface and casters at the bottom.

[0008] As a further implementation, the first horizontal roller is rotatably connected to the horizontal roller support, and the two ends of the horizontal roller support are rotatably connected to the first vertical roller.

[0009] As a further implementation, the wire feeding frame includes a vertically arranged lifting column, which is fixed on a support frame. The lifting column is equipped with a movable lifting beam and a fixedly connected base. A power component is provided between the base and the lifting beam, and the power component drives the lifting beam to rise or fall along the lifting column.

[0010] As a further implementation, the lifting beam is equipped with a connector for connecting to a cable reel or a cable support frame.

[0011] As a further implementation, the lifting columns have two sets arranged side by side, with the lifting beam and base located between the two sets of lifting columns.

[0012] As a further implementation, the support frame is equipped with wheels.

[0013] As a further implementation, the support frame includes a second vertical roller and a second horizontal roller connected to the top of the base, and the height of the base is the same as the height of the table panel of the operating table body.

[0014] As a further implementation, the diameter between the two sets of first vertical rollers is the same as the width of the table panel, and the distance between the two sets of second vertical rollers is greater than the outer diameter of the cable, but much smaller than the distance between the two sets of first vertical rollers.

[0015] As a further implementation, the fixed clamp includes a clamp body connected to the table panel by fasteners. The clamp body is provided with a fixed jaw and a movable jaw. The movable jaw is threadedly connected to a screw. The rotation of the screw drives the movable jaw to move toward or away from the fixed jaw, thereby opening or closing the jaw.

[0016] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0017] 1. After the cable is introduced through the cable delivery rack, it passes sequentially through the rollers on the support frame and the rollers on the platform before finally entering the clamping clamp to be held and secured. After the cable is clamped and secured, the workers perform subsequent operations such as insulation stripping, conductor treatment, and terminal crimping.

[0018] 2. The rollers on the support frame provide a certain degree of alignment for the cable and also prevent the cable from sagging due to its own weight.

[0019] 3. Due to the significant size variations in medium-voltage cables, their hardness and toughness also vary considerably. When a cable is wound in a cable reel, the resulting deformation is difficult to recover in a short time. This deformation affects the efficiency of the workers in end-cap fabrication. Therefore, the relative positions of the support frame and the operating platform are not fixed. During on-site operations, their relative positions can be adjusted according to the cable deformation. This allows the cable, after being led out from the pay-off frame, to first pass through two sets of narrower second vertical rollers, and then through two sets of wider first vertical rollers. This addresses the cable deformation. The wider sets of first vertical rollers make it easier for the deformed cable to enter the subsequent clamping clamps for secure fixing. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0021] Figure 1 This is a schematic diagram of the operating table structure for making medium-voltage cable ends provided by this utility model;

[0022] Figure 2 This is a schematic diagram of the main body of the operating table in the medium-voltage cable end-making operating table provided by this utility model;

[0023] Figure 3 This is a schematic diagram of the cable feeding frame structure in the medium-voltage cable end-making operation table provided by this utility model;

[0024] Figure 4 This is a schematic diagram of the support frame in the medium-voltage cable end-making operation table provided by this utility model;

[0025] Figure 5 This is a schematic diagram of the fixing clamp in the medium-voltage cable end-making operation table provided by this utility model.

[0026] In the diagram: 1-Fixed clamp; 2-Vertical roller shaft; 3-First vertical roller; 4-Horizontal roller bracket; 5-First horizontal roller; 6-Horizontal roller shaft; 7-Operating table frame; 8-Tabletop; 10-Universal casters; 11-Support frame; 12-Lifting column; 13-Support frame; 14-Lifting beam; 15-Jack; 16-Moving wheel; 17-Second vertical roller; 18-Second horizontal roller; 19-Base; 101-Fixed jaws; 102-Fasteners; 103-Moving jaws; 104-Screw. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] Medium-voltage cables refer to power cables with a rated voltage between 6kV and 35kV. They are mainly used in urban power grids and industrial power supply applications, with conductor cross-sectional areas typically between 35mm² and 1000mm². The cable outer diameter is generally between 20mm and 100mm.

[0031] When fabricating medium-voltage cable terminations, the insulation layer on the conductor surface needs to be removed to expose the conductor. Some cables may also have shielding layers, armor layers, or other semi-conductive layers, which also need to be removed. The semi-conductive layers need to be polished to create a smooth transition, avoiding steps or burrs. The exposed conductor needs to be cleaned and free of scratches and impurities before installing stress control components (such as stress cones / stress tubes). After trimming the conductor length, terminals or connectors are crimped in. Finally, sealing and protective treatments are performed, such as wrapping with waterproof tape or injecting sealant, with special attention to the junction between the stress cone and the cable; and inserting heat-shrink tubing or rubber sleeves, which are then heated and shrunk to form complete protection.

[0032] As described in the background section, due to the large diameter range of medium-voltage cables, the hardness and toughness of the cables vary greatly. The lack of effective fixing devices during cable termination makes the quality and efficiency of cable termination production unsatisfactory.

[0033] The following embodiment provides a medium-voltage cable end-making operation table. A lifting cable-laying frame is used to carry the cable and adjust the laying height. The cable is clamped and fixed by fixing clamps on the edge of the operation table body, and stripping and end-crimping operations are performed at the fixing point. A support frame with rollers is set between the cable-laying frame and the operation table body to prevent the cable from falling due to its own weight.

[0034] Example 1:

[0035] like Figures 1-5 As shown, a medium-voltage cable termination manufacturing workbench includes a workbench body, a support frame 11, and a cable feeding frame arranged in sequence.

[0036] The cable laying rack is used to carry cables and has a lifting function to adjust the laying height.

[0037] In this embodiment, the cable on the cable reel can be pre-wound onto the cable reel, and then the cable reel is placed on the cable reel. The cable reel is provided with a spindle that supports the rotation of the cable reel, which allows the cable to be gradually drawn out during the rotation of the cable reel.

[0038] The support frame 11 is used to support the cable between the cable feeding frame and the operating table body. Since the diameter range of medium voltage cables is large and the weight of the cables varies, some cables with armor layers or large diameter cables may fall due to their own weight. Falling will affect the workers' work on the operating table body, such as stripping the insulation layer, treating the conductor surface and crimping the terminals. Therefore, the support frame 11 is used to support the cables.

[0039] like Figure 2 As shown, the control panel body includes a control panel frame 7, a table panel 8 on the top surface of the control panel frame 7, and casters 10 on the bottom.

[0040] As a further implementation, the operating table frame 7 can be made by welding square tubes, and its height can be determined according to the needs of on-site operations.

[0041] As a further embodiment, the tabletop 8 can be made of wood and covered with a metal material, such as 2mm thick stainless steel.

[0042] As a further embodiment, a roller assembly is provided at one end of the table panel 8 facing the support frame 11, and a fixing clamp 1 is provided on the table panel 8.

[0043] As a further embodiment, the roller assembly includes a first horizontal roller 5 and two sets of first vertical rollers 3 arranged side by side at one end of the table panel 8 facing the support frame 11.

[0044] As a further embodiment, the first horizontal roller 5 is rotatably connected to the horizontal roller support 4, and the two ends of the horizontal roller support 4 are rotatably connected to the first vertical roller 3.

[0045] As a further embodiment, the horizontal roller support 4 is provided with a horizontally arranged horizontal roller shaft 6, and the first horizontal roller 5 is sleeved on the outside of the horizontal roller shaft 6, so that the horizontal roller shaft 6 rotates around the horizontal axis.

[0046] As a further embodiment, the horizontal roller support 4 is provided with vertically arranged vertical roller shafts 2 at both ends, and the first vertical roller 3 is sleeved on the outside of the vertical roller shaft 2, so that the first vertical roller 3 rotates around the vertical axis.

[0047] like Figure 3 As shown, the wire feeding frame includes a vertically arranged lifting column 12, which is fixed on the support frame 13. The lifting column 12 is provided with a movable lifting beam 14 and a fixedly connected base. A power component is provided between the base and the lifting beam 14, and the power component pushes the lifting beam 14 to rise or fall along the lifting column 12.

[0048] In this embodiment, the power component is jack 15. Considering the significant weight difference of medium-voltage cables, the hydraulically powered jack 15 has a greater lifting capacity compared to commonly used motors.

[0049] As a further embodiment, the lifting beam 14 is provided with a connector for connecting to the cable reel or the cable support frame. The specific structure of the connector is not limited; for example, it may include a rotating spindle that supports the rotation of the cable reel, making the cable unloading process smoother.

[0050] As a further embodiment, the lifting columns 12 have two sets arranged side by side, with the lifting beam 14 and the base located between the two sets of lifting columns 12. The side-by-side arrangement of the lifting columns 12 can provide a guiding function.

[0051] As a further implementation, the lifting column 12 may be provided with multiple parallel locking holes, and the lifting beam 14 may be provided with corresponding through holes. When the lifting beam 14 rises or falls to the set height position under the drive of the power component, fasteners or locking pins are used to pass through the through holes and locking holes to lock the cable laying height position, thereby preventing the cable reel or wire frame from falling due to accidental failure of the jack 15, and thus preventing changes in the cable laying height.

[0052] As a further embodiment, the support frame 13 is provided with casters 16 for moving the cable tray during on-site operations.

[0053] As a further implementation, the lifting beam 14 can be made of materials with the appropriate strength according to actual load-bearing requirements.

[0054] As a further implementation method, the jack 15 is matched with the tonnage according to the maximum load capacity of the wire feeding frame.

[0055] like Figure 4 As shown, the support frame includes a second vertical roller 17 and a second horizontal roller 18 connected to the top of the base 19. The second vertical roller 17 has two sets arranged side by side.

[0056] As a further embodiment, the spacing between the two sets of second vertical rollers 17 is adjustable. This can be achieved by providing a strip-shaped hole at the top 19 of the base, allowing the spacing between the two sets of second vertical rollers 17 to be changed according to the operational requirements during on-site end-making, thus accommodating medium-voltage cables with different outer diameters. Since the outer diameter of medium-voltage cables varies considerably, the adjustable spacing can accommodate different models of medium-voltage cables.

[0057] As a further embodiment, the height of the base 19 is the same as the height of the tabletop 8 of the operating console body, ensuring that after the cable is led out of the cable tray, it passes through the support frame and the operating console body in a horizontal position as much as possible before entering the fixing clamp 1 to be clamped and fixed.

[0058] As a further implementation, the vertical and horizontal rollers are not limited to specific structures and materials; for example, nylon or metal materials can be used.

[0059] As a further embodiment, the length of the second horizontal roller 18 is matched with the spacing between the two sets of second vertical rollers 17, and the length of the first horizontal roller 5 is matched with the spacing between the two sets of first vertical rollers 2.

[0060] As a further embodiment, the diameter between the two sets of first vertical rollers 2 is the same as the width of the table panel 8, and the distance between the two sets of second vertical rollers 17 is greater than the outer diameter of the cable, but much smaller than the distance between the two sets of first vertical rollers 2.

[0061] For example, the distance between the two sets of second vertical rollers 17 can be greater than 10% of the cable's outer diameter, while the width of the platform 8 is much larger than the cable's outer diameter, several times larger. Due to the significant size differences in medium-voltage cables, their hardness and toughness also differ considerably. When the cable is wound in the cable reel, the deformation it undergoes is difficult to recover in a short time, affecting the efficiency of the workers in end-capping. Therefore, the relative positions of the support frame 11 and the operating platform are not fixed. During on-site operations, the relative positions can be adjusted according to the cable's deformation, so that after the cable is led out from the cable feeder, it first passes through the second horizontal roller 18 to bear its weight, then passes between the two narrower sets of second vertical rollers 17, which limits the cable's deformation. It then passes through the first horizontal roller 8 to bear its weight, and then passes between the two wider sets of first vertical rollers 2, thus addressing the cable's deformation. The wider first vertical rollers 2 make it easier for the deformed cable to enter the subsequent fixing clamp 1.

[0062] like Figure 5 As shown, the clamping clamp 1 is connected to the table panel 8. Considering the convenience of operation, the clamping clamp 1 in this embodiment is set in the edge area of ​​the table panel 8, and the clamping clamp 1 is rotatably connected to the table panel 8. When rotated to the required position, it is fixed by inserting a fastener 102.

[0063] As a further embodiment, the fixed clamp 1 includes a clamp body connected to the table panel 8 by a fastener 102. The clamp body is provided with a fixed jaw 101 and a movable jaw 103. The movable jaw 103 is threadedly connected to a screw 104. By rotating the screw 104, the movable jaw 103 is driven to move toward or away from the fixed jaw 101, thereby opening or closing the jaws.

[0064] As a further embodiment, the areas where the fixed jaws 101 and the movable jaws 103 clamp the cable are provided with a buffer layer, such as a rubber layer, to prevent damage to the sheath or insulation layer on the outer surface of the cable during clamping.

[0065] After the cable is introduced by the cable reel, it passes through the rollers on the support frame 11, then through the roller assembly on the platform 8, and finally enters the clamping clamp 1 to be clamped and fixed. After the cable is clamped and fixed, the worker stands on one side of the platform 8 to perform subsequent operations such as insulation stripping, conductor processing, and terminal crimping. The weight of the cable is borne by the horizontal rollers in the cable reel, support frame 11, and platform. Due to the large size and weight of medium-voltage cables, it is difficult to properly fix the cable end using only the clamping clamp on the platform when removing it from the reel and transporting it to the platform until the end is made. Since it is an on-site operation, it is difficult to carry equipment with greater clamping force due to portability limitations. Therefore, the vertical roller is used to limit the deformation direction of the cable, thereby helping the clamping clamp to better clamp and fix the cable end area, which is beneficial for on-site workers to make the end.

[0066] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A medium-voltage cable end-making workbench, characterized in that, The device includes an operating table body, a support frame, and a cable feeding frame arranged sequentially. The cable feeding frame is used to carry cables, and the support frame is used to support the cables between the cable feeding frame and the operating table body. The operating table body has a table panel, and a fixing clamp is provided on the table panel. A first horizontal roller is provided at one end of the table panel facing the support frame, and a first vertical roller is provided at both ends of the first horizontal roller. The support frame has a second horizontal roller, and a second vertical roller is provided at both ends of the second horizontal roller.

2. The medium-voltage cable termination fabrication workbench as described in claim 1, characterized in that, The control panel body includes a control panel frame, a table panel on the top surface of the control panel frame, and casters at the bottom.

3. The medium-voltage cable termination fabrication workbench as described in claim 1, characterized in that, The first horizontal roller is rotatably connected to the horizontal roller support, and the two ends of the horizontal roller support are rotatably connected to the first vertical roller.

4. The medium-voltage cable termination fabrication workbench as described in claim 1, characterized in that, The cable laying frame includes a vertically arranged lifting column, which is fixed on a support frame. The lifting column is equipped with a movable lifting beam and a fixed base. A power component is provided between the base and the lifting beam, and the power component pushes the lifting beam to rise or fall along the lifting column.

5. The medium-voltage cable termination fabrication workbench as described in claim 4, characterized in that, The lifting beam is equipped with a connector for connecting to a cable reel or a cable support frame.

6. The medium-voltage cable termination fabrication workbench as described in claim 4, characterized in that, The lifting columns are arranged in two sets side by side, with the lifting beam and base located between the two sets of lifting columns.

7. The medium-voltage cable termination fabrication workbench as described in claim 4, characterized in that, The support frame is equipped with casters.

8. The medium-voltage cable termination fabrication workbench as described in claim 1, characterized in that, The support frame includes a second vertical roller and a second horizontal roller connected to the top of the base. The height of the base is the same as the height of the tabletop of the operating table body.

9. The medium-voltage cable termination fabrication workbench as described in claim 1, characterized in that, The diameter between the two sets of first vertical rollers is the same as the width of the table panel, and the distance between the two sets of second vertical rollers is greater than the outer diameter of the cable, but much smaller than the distance between the two sets of first vertical rollers.

10. A medium-voltage cable termination fabrication workbench as described in claim 1, characterized in that, The fixed clamp includes a clamp body connected to the table panel by fasteners. The clamp body is provided with a fixed jaw and a movable jaw. The movable jaw is threadedly connected to a screw. The rotation of the screw drives the movable jaw to move toward or away from the fixed jaw, thereby opening or closing the jaw.

Images