Direct current cable sheathing device and direct current cable sheathing method

Abstract

The present application relates to the technical field of cable, and provides a DC cable armoring device and a DC cable armoring method. In the DC cable armoring device, the first guide clamping mechanism and the second guide clamping mechanism are vertically arranged in an interval. The armoring tape feeding mechanism is arranged in the interval between the first guide clamping mechanism and the second guide clamping mechanism. In this way, the two groups of guide clamping mechanisms are vertically arranged in an interval, and the armoring tape feeding mechanism is arranged between the two groups of guide clamping mechanisms to perform vertical armoring. The cable body straightness and coaxiality of the DC cable armoring section can be ensured, the armoring concentricity and lap stability are improved, and the armoring layer thickness is uniform. The guide die sleeve is not needed, and the equipment matching cost can be reduced. At the same time, the tape tension fluctuation caused by the dead weight of the steel tape reel in the horizontal layout is eliminated, the steel tape is uniformly tight, and the armoring quality is improved. In addition, the horizontal land space of the equipment can be reduced, and the workshop space utilization rate is improved.

Description

Technical Field

[0001] This invention relates to the field of cable technology, and in particular to a DC cable armoring device and a DC cable armoring method. Background Technology

[0002] In the production and manufacturing process of DC cables, steel tape armoring is a key process to improve the mechanical strength of the cable and enhance its resistance to external damage. By tightly wrapping the steel tape around the outer sheath of the cable in a spiral manner, the cable is provided with radial mechanical protection and structural reinforcement.

[0003] Currently, cable armoring equipment in the industry generally adopts a horizontal layout structure, with the cable being transported horizontally and the armoring rotating body rotating circumferentially around the horizontal axis, driving the steel strip roll to rotate synchronously to complete the spiral wrapping. This type of horizontal armored structure has significant drawbacks in the production of large-section, high-voltage DC cables: First, large-specification DC cables are heavy, and when laid horizontally, the middle section of the cable is prone to sagging and bending due to its own weight, making it impossible to maintain stable straightness and coaxiality. This directly leads to large concentricity deviations, unstable overlap rates, and poor uniformity of armor layer thickness in the steel tape armor. Second, to limit the radial deviation of the cable, horizontal armoring equipment is often equipped with guide molds to achieve centering and limiting, which is costly. Third, in the horizontal rotating layout, the steel tape roll rotates in the vertical plane with the rotating body. The weight of the steel tape roll will produce periodic component force changes with the rotation angle, causing continuous fluctuations in the unwinding tension, resulting in uneven tightness of the armor steel tape and quality defects such as loose tape and overlapping tape. Fourth, the horizontal armoring production line requires a long guide along the horizontal direction of the cable, resulting in a large overall equipment footprint and low production space utilization. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a DC cable armoring device and a DC cable armoring method.

[0005] In a first aspect, the present invention provides a DC cable armoring device, comprising: a first guide clamping mechanism, a second guide clamping mechanism, and an armoring tape dispensing mechanism.

[0006] The first guide clamping mechanism and the second guide clamping mechanism are arranged vertically at intervals, and the first guide clamping mechanism and the second guide clamping mechanism are used to cooperate in vertical cable passage.

[0007] The armor strapping mechanism is located between the first guide clamping mechanism and the second guide clamping mechanism.

[0008] According to the present invention, a DC cable armoring device is provided, wherein the first guide clamping mechanism includes: a first adjusting wheel group.

[0009] The first adjusting wheel assembly is located upstream of the vertical DC cable, and the first adjusting wheel assembly can open and close radially along the vertical DC cable.

[0010] The second guide clamping mechanism includes: a second adjusting wheel set.

[0011] The second adjusting wheel assembly is located downstream of the vertical DC cable, and the second adjusting wheel assembly can open and close radially along the vertical DC cable.

[0012] According to the present invention, a DC cable armoring device is provided, wherein the first adjusting wheel group includes: a first moving guide wheel, a second moving guide wheel, and a first driving part.

[0013] The first moving guide wheel and the second moving guide wheel are respectively disposed on both radial sides of the vertical DC cable. The first driving part is used to drive the first moving guide wheel, and / or the second moving guide wheel moves radially toward or away from the vertical DC cable.

[0014] The second adjusting wheel assembly includes: a third moving guide wheel, a fourth moving guide wheel, and a second driving unit.

[0015] The third and fourth moving guide wheels are respectively disposed on both radial sides of the vertical DC cable. The second driving unit is used to drive the third moving guide wheel, and / or the fourth moving guide wheel moves radially toward or away from the vertical DC cable.

[0016] According to the present invention, a DC cable armoring device is provided, wherein the armoring tape feeding mechanism includes: a base, a plurality of tape feeding base plates and a base rotation drive unit.

[0017] The base is disposed between the first guide clamping mechanism and the second guide clamping mechanism, and the base is provided with a through hole for the vertical DC cable to pass through.

[0018] Each of the tape-laying base plates is arranged in a ring array on the substrate with the center of the perforation as the array center.

[0019] The base rotation drive unit is connected to the base and is used to drive the base to rotate.

[0020] According to a DC cable armoring device provided by the present invention, the armoring tape feeding mechanism further includes: a plurality of height adjustment parts, wherein the tape feeding base plate is connected to the base body one-to-one through the height adjustment parts.

[0021] The height adjustment part includes: a first connecting post, a second connecting post, an adjusting nut, and a limiting body.

[0022] One end of the first connecting post is connected to the base body, and a limiting groove is provided at the end of the first connecting post facing the tape base plate.

[0023] One end of the second connecting post is connected to the tape base plate, and the end of the second connecting post facing the first connecting post is connected to the limiting body. The limiting body is axially slidably inserted into the limiting groove.

[0024] The adjusting nut is threadedly connected to the first connecting post and the second connecting post, and the adjusting nut is used to drive the second connecting post to move axially in a direction toward or away from the first connecting post.

[0025] According to a DC cable armoring device provided by the present invention, the outer wall of the first connecting post is provided with a size adjustment mark.

[0026] The height adjustment unit also includes a scale cylinder.

[0027] The scale cylinder is slidably sleeved on the outside of the first connecting post and connected to the adjusting nut.

[0028] According to the present invention, a DC cable armoring device is provided, wherein the armoring tape feeding mechanism further includes: a bracket, a flipping table, and a flipping drive unit.

[0029] The bracket is connected to the second connecting column.

[0030] The tilting table is rotatably connected to the support, and the tape-laying base plate is disposed on the tilting table.

[0031] The flipping drive unit is connected between the flipping table and the support, and is used to drive the flipping table to flip relative to the support to adjust the armor angle.

[0032] According to the present invention, a DC cable armoring device is provided, wherein the armoring tape feeding mechanism further includes a flip angle marking section.

[0033] The flip angle marking section is disposed on the flip drive section and is used to mark the flip angle of the flip drive section.

[0034] According to the present invention, a DC cable armoring device is provided, wherein the tape-releasing base plate includes: a base plate body.

[0035] The base plate body is rotatably connected to the flipping table.

[0036] The DC cable armoring device also includes a tension adjustment mechanism.

[0037] The tension adjustment mechanism can press against the base plate body, and the tension adjustment mechanism can move in a direction toward or away from the base plate body to adjust the rotational resistance of the base plate body.

[0038] According to the present invention, a DC cable armoring device further includes a tape-laying base plate comprising: a plurality of support blocks and a support drive unit.

[0039] Each of the support blocks is arranged in a ring around the base plate body as the array center.

[0040] The support drive unit is connected to each of the support blocks and is used to drive each of the support blocks to move radially and telescopically along the base plate body.

[0041] According to the present invention, a DC cable armoring device is provided in which an elastic buffer is provided between each of the support blocks and the support drive part.

[0042] According to a DC cable armoring device provided by the present invention, the base plate body is further provided with a tray retrieval groove, which is located between adjacent support blocks.

[0043] According to the present invention, a DC cable armoring device further includes a plurality of directional guide wheels.

[0044] At least one directional guide wheel is respectively arranged upstream of the first guide clamping mechanism and downstream of the second guide clamping mechanism.

[0045] According to the present invention, a DC cable armoring device further includes a frame.

[0046] The first guide clamping mechanism, the second guide clamping mechanism, and the armor strapping mechanism are all mounted on the frame.

[0047] A second aspect of the present invention provides a method for armoring a DC cable, comprising the following steps: passing a DC cable sequentially through a first guide clamping mechanism and a second guide clamping mechanism; and armoring tape release mechanism armoring a vertical DC cable between the first guide clamping mechanism and the second guide clamping mechanism.

[0048] According to a DC cable armoring method provided by the present invention, before the step of sequentially passing the DC cable through the first guide clamping mechanism and the second guide clamping mechanism, the method further includes: Adjust the first guide clamping mechanism and the second guide clamping mechanism to make them coaxially guided.

[0049] Before the step of armoring the vertical DC cable between the first guide clamping mechanism and the second guide clamping mechanism, the armored tape feeding mechanism further includes: rotating each adjusting nut to adjust the corresponding tape feeding base to the corresponding target height; adjusting the flipping drive to flip the tape feeding base to the target tape feeding angle; adjusting the tension adjustment mechanism to press the base body with the target pressure; and adjusting the support drive to move each support block radially to support and fix the steel tape reel.

[0050] The DC cable armoring device provided by this invention includes a first guide clamping mechanism, a second guide clamping mechanism, and an armoring tape releasing mechanism. The first and second guide clamping mechanisms are arranged vertically at intervals, forming a vertical routing constraint system for the DC cable. The armoring tape releasing mechanism is located within the interval between the first and second guide clamping mechanisms. During operation, the DC cable, guided and limited by the first and second guide clamping mechanisms, maintains a vertical threading posture within the armoring interval between them; that is, the first and second guide clamping mechanisms work together to vertically pass the cable. The armoring tape releasing mechanism, located between the first and second guide clamping mechanisms, carries a steel tape reel and drives the reel to rotate circumferentially around the vertical section of the DC cable, completing the spiral wrapping through the steel tape release, thus achieving steel tape armoring. The inlet and outlet ends of the DC cable can be adapted to other routing directions according to the actual layout of the production line, without needing to maintain a vertical orientation throughout.

[0051] Therefore, by employing two sets of guide clamping mechanisms arranged vertically at intervals, and placing the armoring tape release mechanism between the two sets of guide clamping mechanisms for vertical armoring, the straightness and coaxiality of the DC cable body in the armoring section can be effectively guaranteed, significantly improving the concentricity and overlap stability of the steel tape armoring, and ensuring uniform armor layer thickness. Since there is no need to independently install guide molds, the equipment supporting costs can be effectively reduced. At the same time, the armoring tape release mechanism can drive the steel tape coil on it to rotate circumferentially around the vertical cable, eliminating the periodic component force change of the steel tape coil's self-weight with the rotation angle under the horizontal layout, making the tape release tension continuously stable, the armor steel tape tension uniform, and greatly improving the armoring quality. In addition, this armoring device can effectively reduce the horizontal extension length of the equipment and improve the space utilization efficiency of the production workshop. Attached Figure Description

[0052] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0053] Figure 1This is a three-dimensional structural diagram of the DC cable armoring device provided by the present invention. Figure 1 .

[0054] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.

[0055] Figure 3 This is a three-dimensional structural diagram of the DC cable armoring device provided by the present invention. Figure 2 .

[0056] Figure 4 yes Figure 3 A magnified view of a section at point B.

[0057] Figure 5 This is a three-dimensional structural diagram of the DC cable armoring device provided by the present invention. Figure 3 .

[0058] Figure 6 This is a top view of the DC cable armoring device provided by the present invention.

[0059] Figure 7 yes Figure 6 A magnified view of a section at point C.

[0060] Figure 8 This is a schematic diagram of the internal structure of the height adjustment section in the DC cable armoring device provided by the present invention.

[0061] Reference numerals: 100, First guide clamping mechanism; 110, First moving guide wheel; 120, Second moving guide wheel; 130, First drive unit; 200, Second guide clamping mechanism; 210, Third moving guide wheel; 220, Fourth moving guide wheel; 230, Second drive unit; 300, Armored tape feeding mechanism; 310, Base body; 320, Tape feeding base plate; 321, Base plate body; 322, Support block; 323, Support drive unit; 324, Tape taking slot; 330, Base body rotation drive unit; 331, Servo motor; 332, Drive gear; 333, Driven gear; 340, Height adjustment unit; 341, First connecting column; 342, Second connecting column; 343, Adjustment... 344. Limiting nut; 345. Scale cylinder; 350. Bracket; 360. Tilting table; 370. Tilting drive unit; 371. Slide rail fixing plate; 372. Slide groove; 373. Fixing seat; 374. Screw; 375. Limiting block; 376. Rack; 377. Tilting gear; 378. Cover; 380. Tilting angle marking part; 400. Tension adjustment mechanism; 410. Tension wheel; 420. Drive plate; 430. Tension adjustment slide rod; 440. Tension adjustment screw; 450. Tension adjustment locking nut; 500. Guide wheel; 600. Frame; 610. Platform; 620. Base plate; 630. Support column; 640. Inclined plate. Detailed Implementation

[0062] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0063] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "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 the embodiments of the present invention 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 the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0064] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0065] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0066] In the description of this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate different embodiments or examples and features of different embodiments or examples described in this specification to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer. The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0067] The following is combined with Figures 1 to 8 This invention describes a DC cable armoring device and a DC cable armoring method provided by embodiments of the present invention. It should be understood that the following description is merely an illustrative embodiment of the present invention and does not constitute any particular limitation on the present invention.

[0068] An embodiment of the first aspect of the present invention provides a DC cable armoring device, such as... Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, it includes a first guide clamping mechanism 100, a second guide clamping mechanism 200, and an armored strap release mechanism 300.

[0069] The first guide clamping mechanism 100 and the second guide clamping mechanism 200 are arranged vertically at intervals, and the first guide clamping mechanism 100 and the second guide clamping mechanism 200 are used to cooperate in vertical cable passage.

[0070] The armor strap release mechanism 300 is located between the first guide clamping mechanism 100 and the second guide clamping mechanism 200.

[0071] In other words, the DC cable armoring device provided by this invention includes a first guide clamping mechanism 100, a second guide clamping mechanism 200, and an armoring tape releasing mechanism 300. The first guide clamping mechanism 100 and the second guide clamping mechanism 200 are arranged vertically at intervals, together forming a vertical routing constraint system for the DC cable. The armoring tape releasing mechanism 300 is arranged in the interval between the first guide clamping mechanism 100 and the second guide clamping mechanism 200. During operation, after being guided and limited by the first guide clamping mechanism 100 and the second guide clamping mechanism 200, the DC cable maintains a vertical threading posture within the armoring interval between them, that is, the first guide clamping mechanism 100 and the second guide clamping mechanism 200 cooperate in vertical cable passing. The armoring tape releasing mechanism 300, located between the first guide clamping mechanism 100 and the second guide clamping mechanism 200, carries the steel tape reel and drives the steel tape reel to rotate circumferentially around the vertical DC cable section, completing the spiral wrapping through steel tape releasing, and realizing the steel tape armoring process. The DC cable's inlet and outlet can be adapted to other routing directions according to the actual layout of the production line, without needing to maintain a vertical orientation throughout.

[0072] Therefore, by employing two sets of guide clamping mechanisms arranged vertically at intervals, and placing the armor release mechanism 300 between the two sets of guide clamping mechanisms for vertical armoring, the straightness and coaxiality of the DC cable body in the armoring operation section can be effectively guaranteed, significantly improving the concentricity and overlap stability of the steel strip armor, and ensuring uniform armor layer thickness. Since there is no need to independently install guide molds, the equipment matching cost can be effectively reduced. At the same time, the armor release mechanism 300 can drive the steel strip coil on it to rotate around the vertical cable circumferentially, eliminating the periodic component force change of the steel strip coil's self-weight with the rotation angle under the horizontal layout, making the release tension continuously stable, the armor steel strip tightness uniform, and greatly improving the armoring quality. In addition, this armoring device can effectively reduce the horizontal extension length of the equipment and improve the space utilization efficiency of the production workshop.

[0073] In one embodiment of the present invention, such as Figure 1 , Figure 3 and Figure 5 As shown, the DC cable armoring device also includes a frame 600. The first guide clamping mechanism 100, the second guide clamping mechanism 200, and the armoring tape unloading mechanism 300 are all disposed on the frame 600.

[0074] Specifically, the frame 600 adopts a vertical frame structure, mainly including a platform 610, supports 630, a base plate 620, and inclined plates 640. The platform 610 is arranged horizontally and is fixedly supported above the base plate 620 by multiple vertically arranged supports 630. The base plate 620 is horizontally fixed to the ground. The inclined plates 640 are connected to the platform 610 and supports 630 respectively, forming a triangular reinforcement structure to improve the overall rigidity and vibration resistance of the frame 600.

[0075] In one embodiment of the present invention, the first guide clamping mechanism 100 includes a first adjusting wheel assembly. The first adjusting wheel assembly is disposed upstream of the vertical DC cable and is capable of opening and closing radially along the vertical DC cable.

[0076] The second guide clamping mechanism 200 includes a second adjusting wheel assembly. The second adjusting wheel assembly is located downstream of the vertical DC cable and is capable of opening and closing radially along the vertical DC cable.

[0077] Furthermore, in one embodiment of the present invention, the first adjusting wheel group includes a first moving guide wheel 110, a second moving guide wheel 120, and a first driving part 130.

[0078] The first moving guide wheel 110 and the second moving guide wheel 120 are respectively disposed on the radial sides of the vertical DC cable. The first driving part 130 is used to drive the first moving guide wheel 110 and / or the second moving guide wheel 120 to move toward or away from the vertical DC cable along the radial direction of the DC cable.

[0079] The second adjusting wheel assembly includes a third moving guide wheel 210, a fourth moving guide wheel 220, and a second drive unit 230.

[0080] The third moving guide wheel 210 and the fourth moving guide wheel 220 are respectively disposed on both radial sides of the vertical DC cable. The second driving part 230 is used to drive the third moving guide wheel 210 and / or the fourth moving guide wheel 220 to move toward or away from the vertical DC cable along the radial direction of the DC cable.

[0081] Furthermore, in one embodiment of the present invention, the DC cable armoring device further includes a plurality of directional guide wheels 500. At least one directional guide wheel 500 is respectively arranged upstream of the first guide clamping mechanism 100 and downstream of the second guide clamping mechanism 200.

[0082] Specifically, such as Figure 1 , Figure 3 and Figure 5As shown, the first adjusting wheel assembly is installed on the platform 610 of the frame 600, forming the upstream first guide clamping mechanism 100; the second adjusting wheel assembly is installed on the bottom plate 620 of the frame 600, forming the downstream second guide clamping mechanism 200. The first moving guide wheel 110, the second moving guide wheel 120, the third moving guide wheel 210, and the fourth moving guide wheel 220 all adopt an arc-shaped guide wheel structure, with the wheel surface curvature matching the outer contour of the cable's outer sheath. Each moving guide wheel is mounted on a corresponding connecting longitudinal plate via a guide wheel shaft, and the connecting longitudinal plate is fixed to the output end of the corresponding drive unit via a connecting transverse plate. The first drive unit 130 and the second drive unit 230 both adopt a bidirectional cylinder structure, including a cylinder body and a synchronously extending cylinder push rod. The cylinder body is respectively mounted on the platform 610 and the bottom plate 620 via a main support plate and a fixed support plate. A pressure reducing valve is provided in the cylinder air circuit, and the air pressure value can be adjusted according to the diameter of the cable being produced. The cylinder push rod can drive the two moving guide wheels to perform synchronous bidirectional telescopic movement, which can clamp the cable while avoiding excessive pressure that could damage the cable's outer sheath.

[0083] The directional guide wheel 500 includes a directional guide wheel body and a support component. The directional guide wheel body is fixed to the inlet and outlet ends of the frame 600 through the support component, respectively providing initial guidance and attitude correction for the inlet and outlet sections of the cable.

[0084] This structural design allows the first and second adjusting wheel sets to open and close, accommodating DC cables of different outer diameters. Changeovers do not require disassembling and replacing molds, shortening the changeover and debugging time. Furthermore, the arc-shaped guide wheels make flexible rolling contact with the cable's outer sheath, preventing hard friction from scratching the sheath surface and improving product quality.

[0085] In one embodiment of the present invention, the armored tape feeding mechanism 300 includes: a base 310, a plurality of tape feeding base disks 320 and a base rotation drive unit 330.

[0086] The base 310 is disposed between the first guide clamping mechanism 100 and the second guide clamping mechanism 200. The base 310 is provided with a through hole for vertical DC cable to pass through. Each tape-laying base plate 320 is arranged in a ring array with the center of the through hole as the array center on the base 310. The base rotation drive unit 330 is connected to the base 310 and is used to drive the base 310 to rotate.

[0087] For example, such as Figure 1 , Figure 3 and Figure 5As shown, the base 310 adopts a disc-type main turntable structure, arranged between the first guide clamping mechanism 100 and the second guide clamping mechanism 200, and is rotatably connected to the frame 600. A circular through-hole for vertical DC cables is provided at the center of the base 310. The diameter of the hole is designed to be 1.5 times the maximum diameter of the cable being produced, providing sufficient adjustment margin for cable insertion. The base rotation drive unit 330 includes a servo motor 331, a drive gear 332, and a driven gear 333. The servo motor 331 is fixedly mounted below the platform 610, and its output shaft is connected to the drive gear 332. The drive gear 332 and the driven gear 333 mesh with each other. The driven gear 333 is connected to its shaft. One end of the driven gear 333 shaft is connected to the base 310, and the other end is connected to the platform 610 via a bottom bearing. The output shaft of the servo motor 331 drives the active gear 332 to rotate, which in turn drives the driven gear 333 to rotate the base 310 around the vertical axis through the driven gear 333 shaft, so that the tape-laying base disks 320 arranged in a ring array on the base 310 rotate synchronously around the DC cable.

[0088] The base 310 adopts a vertical axis rotation layout, and the steel strip coil on it rotates in the horizontal plane with the base 310. Its own gravity direction is parallel to the rotation axis, and it will not generate periodic radial force with the rotation angle, thereby eliminating the problem of strip tension fluctuation and making the strip tension more uniform.

[0089] In one embodiment of the present invention, the armor strapping mechanism 300 further includes a plurality of height adjustment sections 340. The strapping base 320 is connected to the base 310 in a one-to-one correspondence via the height adjustment sections 340.

[0090] The height adjustment unit 340 includes: a first connecting post 341, a second connecting post 342, an adjusting nut 343, and a limiting body 344. One end of the first connecting post 341 is connected to the base 310, and a limiting groove is provided at the end of the first connecting post 341 facing the tape feeding base 320; one end of the second connecting post 342 is connected to the tape feeding base 320, and the limiting body 344 is connected to the end of the second connecting post 342 facing the first connecting post 341, and the limiting body 344 is axially slidably inserted into the limiting groove; the adjusting nut 343 is threadedly connected to the first connecting post 341 and the second connecting post 342, and the adjusting nut 343 is used to drive the second connecting post 342 to move axially in a direction toward or away from the first connecting post 341.

[0091] Furthermore, in one embodiment of the present invention, the outer wall of the first connecting post 341 is provided with a size adjustment mark. The height adjustment part 340 further includes: a scale cylinder 345; the scale cylinder 345 is slidably sleeved on the outside of the first connecting post 341 and connected to the adjusting nut 343.

[0092] like Figure 8As shown, in this embodiment, both the first connecting post 341 and the second connecting post 342 adopt a screw structure. The lower end of the first connecting post 341 is fixedly connected to the base 310, and the upper end of the second connecting post 342 is connected to the support structure of the tape-laying base 320. The adjusting nut 343 adopts a design with positive and negative threads in the upper and lower sections. The upper section is threaded to the second connecting post 342, and the lower section is threaded to the first connecting post 341. The lengths of the two threads are equal and are 1.5 times the maximum tape width required for production. The first connecting post 341 has an axial cavity with a rectangular cross-section, forming a limiting groove. The lower end of the second connecting post 342 is set as a cuboid guide post structure, forming a limiting body 344. This guide post is inserted into the rectangular cavity and can only slide axially and cannot rotate relative to the circumference, thus achieving circumferential limiting and axial guidance. The threaded section of the second connecting column 342 is also equipped with a locking nut. After adjustment, tighten the locking nut to make it fit tightly with the adjusting nut 343, which can prevent the nut from loosening on its own during equipment rotation and ensure a stable overlap rate.

[0093] In this embodiment, the substrate 310 is provided with two tape-laying base plates 320, each equipped with a height adjustment part 340. A height difference is created by adjusting the axial positions of the two tape-laying base plates 320, which, together with the tape-laying angle, controls the overlap rate of the double-layer steel strip armor. The specific overlap rate calculation formula is as follows: in, i Where is the overlap ratio of the armored steel strip, W is the width of the armored steel strip, and H is the axial height difference of the two strip-laying base plates at 320°. α The angle at which the armor steel belt is laid down.

[0094] During production, the required height difference H can be calculated based on the overlap rate, armor width, and armor cutoff of the process requirements, and then the height adjustment of the two tape-laying base plates 320 can be completed accordingly.

[0095] During the adjustment operation, first align the lower edge of the scale cylinder 345 corresponding to one of the tape base plates 320 with the 0 mark of the size adjustment mark on the outer wall of the first connecting column 341 as the reference position; then, based on the calculated height difference H, rotate the adjusting nut 343 of the other tape base plate 320 so that the lower edge of its scale cylinder 345 is aligned with the corresponding scale value.

[0096] The dimension adjustment markings are specifically height scale lines and scale values ​​distributed along the axial direction. The scale values ​​range from 0 to 50 mm vertically upwards, with a minimum division of 1 mm, allowing for intuitive reading of the adjustment height. When performing single-layer steel strip armoring, there is no need to adjust the height difference between the two strip-laying base plates 320. When performing double-layer steel strip armoring, the height difference adjustment must be completed in the above manner, and the strip-laying angles of the two strip-laying base plates 320 must be kept consistent to ensure the overlap accuracy of the double-layer steel strips.

[0097] In one embodiment of the present invention, the armor loading mechanism 300 further includes: a bracket 350, a flipping table 360, and a flipping drive unit 370. The bracket 350 is connected to the second connecting column 342; the flipping table 360 ​​is rotatably connected to the bracket 350, and the loading base plate 320 is disposed on the flipping table 360; the flipping drive unit 370 is connected between the flipping table 360 ​​and the bracket 350, and is used to drive the flipping table 360 ​​to flip relative to the bracket 350 to adjust the armor angle.

[0098] Furthermore, the armor strapping mechanism 300 also includes a flip angle marking section 380. The flip angle marking section 380 is disposed on the flip drive section 370 and is used to mark the flip angle of the flip drive section 370.

[0099] In specific implementation, such as Figure 1 and Figure 2 As shown, the bracket 350 adopts a U-shaped frame structure, and its lower end is connected to the second connecting column 342, allowing it to rise and fall synchronously with the second connecting column 342. The tilting table 360 ​​is hinged to the upper opening of the U-shaped bracket 350 via a pivot, allowing it to tilt relative to the bracket 350 around the pivot. The tray base 320 is integrally mounted on the upper surface of the tilting table 360, tilting synchronously with the tilting table 360.

[0100] The tilting drive unit 370 is integrated into the side of the bracket 350, and specifically includes a slide rail fixing plate 371, a fixing seat 373, a screw 374, a rack 376, and a tilting gear 377. The slide rail fixing plate 371 is fixedly installed on the side wall of the bracket 350, and the plate surface has a slide groove 372 extending in a straight line. The fixing seat 373 is disposed in the slide groove 372, and has a limit groove thereon. The screw 374 has a limit block 375 on its shaft, which is fitted into the limit groove, so that the screw 374 can only rotate around its own axis and cannot be displaced axially. The rack 376 is slidably installed in the slide groove 372, and the other end of the screw 374 is threadedly connected to the threaded hole on the rack 376. The rack 376 meshes with the tilting gear 377, and the tilting gear 377 is connected to the tilting table 360.

[0101] When the screw 374 is rotated, the screw 374 is axially limited and cannot move. The threaded drive drives the rack 376 to slide linearly along the slide groove 372. The rack 376 drives the flipping gear 377 to rotate synchronously, thereby driving the flipping table 360 ​​to deflect relative to the bracket 350, so as to realize the adjustment of the armor angle of the tape base plate 320.

[0102] The flip angle marking unit 380 includes a cover 378, angle scale lines, and indicator lines. The cover 378 is positioned over the outside of the flip gear 377. An angle scale line from 0° to 90° is provided on the end face of the cover 378, with a minimum division of 1°. An indicator line is provided on the end face of the flip gear 377; the indicator line is coplanar with the scale surface. When the flip gear 377 rotates synchronously with the flip table 360, the indicator line points to the corresponding scale, allowing the current flip angle value to be read. During double-layer steel belt armoring, the flip angles of the two sets of belt-laying base plates 320 can be adjusted to be consistent.

[0103] In one embodiment of the present invention, the tape-laying base plate 320 includes a base plate body 321. The base plate body 321 is rotatably connected to the tilting table 360.

[0104] The DC cable armoring device also includes a tension adjustment mechanism 400. The tension adjustment mechanism 400 can press against the base plate body 321 and can move in a direction toward or away from the base plate body 321 to adjust the rotational resistance of the base plate body 321.

[0105] Furthermore, the tape-laying base plate 320 also includes: multiple support blocks 322 and a support drive unit 323. Each support block 322 is arranged in a ring around the base plate body 321 as the array center; the support drive unit 323 is connected to each support block 322 and is used to drive each support block 322 to move radially and retractably along the base plate body 321. An elastic buffer is provided between each support block 322 and the support drive unit 323. The base plate body 321 is also provided with a tape-retrieving slot 324, which is located between adjacent support blocks 322.

[0106] In specific implementation, the base plate body 321 is an armored steel strip coil placement turntable structure, which is installed on the tilting table 360 ​​through the unwinding shaft and the bottom bearing support, and can rotate freely relative to the tilting table 360.

[0107] like Figure 4As shown, the tension adjustment mechanism 400 includes a tension wheel 410, a tension wheel 410 fixing component, a drive plate 420, a tension adjustment slide rod 430, a tension adjustment screw 440, and a tension adjustment locking nut 450. The tension adjustment slide rod 430 is fixedly installed on the tilting table 360, and the drive plate 420 is slidably sleeved on the tension adjustment slide rod 430, allowing it to slide linearly along the slide rod. The tension wheel 410 is connected to the drive plate 420 via the tension wheel 410 fixing component, and the tension wheel 410 is embedded in the outer ring groove of the base plate body 321, allowing it to roll along the groove. The tension adjustment screw 440 is threadedly connected to the tilting table 360 ​​and to the drive plate 420. The tension adjustment locking nut 450 is threadedly connected to the tension adjustment screw 440; after adjustment, tightening it locks the tension parameters. The tension wheel 410 uses the same wear-resistant elastic material as the brake pads, providing stable damping and a long service life. When the tension adjusting screw 440 is rotated, the tension adjusting screw 440 is fed axially along the threaded hole, which in turn pushes the drive plate 420 to move along the tension adjusting slide bar 430, changing the pressure of the tension wheel 410 against the groove of the base plate body 321, thereby adjusting the rotational damping of the base plate body 321 and realizing the adjustment of the belt tension.

[0108] like Figure 6 and Figure 7 As shown, the base plate body 321 is also provided with multiple support blocks 322, support drive parts 323, and elastic buffers. Each support block 322 is arranged in a ring around the central axis of the base plate body 321. The support drive part 323 includes a clamping rod and a sliding cavity. One end of the clamping rod is fixed to a central fixing member at the center of the base plate body 321, and the sliding cavity is located inside the support block 322. The elastic buffer adopts a spring structure, is housed in the sliding cavity, and its two ends abut against the end face of the cavity and the end of the clamping rod, respectively. When the steel strip coil is wound, the inner ring of the steel strip coil wrapping around the flange squeezes the support block 322 radially, compressing the spring in the sliding cavity. The spring's rebound force drives the support block 322 to tighten the inner ring of the flange, achieving radial fixation of the steel strip coil. The base plate body 321 is also provided with two positioning pins, which can be inserted into the corresponding through holes of the steel strip coil wrapping flange to help limit the radial displacement of the steel strip coil. A tray-retrieving groove 324 is provided between adjacent support blocks 322, allowing the hook to extend and retract when the crane is hoisting the steel strip coil, thus realizing mechanized loading and unloading.

[0109] A second aspect of the present invention provides a method for armoring a DC cable, comprising the following steps: passing a DC cable sequentially through a first guide clamping mechanism 100 and a second guide clamping mechanism 200; and armoring tape release mechanism 300 armoring a vertical DC cable between the first guide clamping mechanism 100 and the second guide clamping mechanism 200.

[0110] Furthermore, in one embodiment of the present invention, before the step of passing the DC cable sequentially through the first guide clamping mechanism 100 and the second guide clamping mechanism 200, the method further includes: adjusting the first guide clamping mechanism 100 and the second guide clamping mechanism 200 so that the first guide clamping mechanism 100 and the second guide clamping mechanism 200 are guided coaxially.

[0111] Before the step of armoring the vertical DC cable between the first guide clamping mechanism 100 and the second guide clamping mechanism 200 in the armored tape feeding mechanism 300, the following steps are included: rotating each adjusting nut 343 to adjust the corresponding tape feeding base plate 320 to the corresponding target height; adjusting the flipping drive unit 370 to flip the tape feeding base plate 320 to the target tape feeding angle driven by the flipping table 360; adjusting the tension adjustment mechanism 400 to press the base plate body 321 with the target pressure; and adjusting the support drive unit 323 to move each support block 322 radially to support and fix the steel tape reel.

[0112] In practice, the first step is to perform coaxial alignment of the guides, adjusting the states of the first guide clamping mechanism 100 and the second guide clamping mechanism 200 so that they can coaxially and vertically clamp the DC cable. The DC cable is then introduced from the upstream directional guide wheel 500, passing sequentially through the first guide clamping mechanism 100 and the second guide clamping mechanism 200, and finally exiting from the downstream directional guide wheel 500. The drive units of the two sets of adjusting wheels are activated, and the appropriate air pressure value is adjusted through the air pressure reducing valve, causing the two moving guide wheels to move radially towards each other to clamp the cable. Combined with the pulling force of the traction machine, the DC cable in the armored section is kept suspended and straight.

[0113] During the loading operation, the drive base 310 is rotated to a position for easy operation, and the tilting drive unit 370 is adjusted to make the upper end face of the unloading base 320 level. The steel strip coil is then hoisted onto the unloading base 320 using a crane. The inner ring of the steel strip coil winding around the flange compresses the support blocks 322 radially, causing them to converge. The rebound force generated by the compressed elastic buffer drives the support blocks 322 to tighten the inner ring of the flange, thus fixing the steel strip coil. The positioning pins on the base body 321 can be inserted into the corresponding through holes of the steel strip coil flange to help limit the radial displacement of the steel strip coil. The tray grooves 324 between adjacent support blocks 322 allow the hoisting hook to extend and retract, completing the mechanized loading process. For single-layer armored systems, only one steel strip coil needs to be installed; for double-layer armored systems, two steel strip coils need to be installed sequentially.

[0114] When adjusting the armor overlap rate, rotate the adjusting nut 343 to drive the second connecting column 342 to rise and fall axially, simultaneously driving the tape-laying base plate 320 to adjust its height. During production, the target height difference between the two plates can be calculated based on the overlap rate, armor width, and armor cutoff distance required by the process. The height of one plate is adjusted to 0 as a reference, and the other plate is adjusted to the corresponding target height. For single-layer armor, there is no need to adjust the height difference between the two plates.

[0115] When adjusting the armor belt feeding angle, operate the screw 374 of the flip drive unit 370, drive the flip table 360 ​​to deflect via rack and pinion transmission, and drive the feeding base plate 320 to adjust the tilt angle; when performing double-layer steel belt armor, the flip angles of the two feeding base plates 320 need to be adjusted to be consistent.

[0116] When adjusting the belt tension, rotate the tension adjusting screw 440 of the tension adjusting mechanism 400 to change its resistance to the base plate body 321, thereby adjusting the rotational damping of the base plate body 321. During adjustment, a torque wrench can be used to tighten it to the preset torque. After adjustment, tighten the locking nut to lock it, ensuring that the belt tension is stable during equipment acceleration, deceleration and normal operation.

[0117] After parameter adjustment, the steel strip head is pre-attached and fixed to the cable. The rotation speed of the base 310 and the traction line speed are matched according to the armored cutoff required by the process. After starting the equipment, the base rotation drive unit 330 drives the base 310 to rotate uniformly around the vertical axis, pulling the steel strip roll to release the strip, spirally wrapping the steel strip around the outside of the cable. When stopping, the electromagnetic brake built into the base rotation drive unit 330 can quickly brake the base 310. During unloading, the unloading base plate 320 is also adjusted to a horizontal position, and the steel strip roll is disassembled using a crane passing through the reel slot 324.

[0118] This armoring method uses a vertical suspension clamping approach to ensure the straightness and coaxiality of the armored cable section. It eliminates the need for cable guide molds, effectively guaranteeing armor concentricity and preventing defects such as missing sections and wrinkles. The steel strip is directly released from the coil for wrapping, eliminating the need for multiple sets of guide rollers and reducing steel strip bending wear and mechanical failures. All parameters are adjustable with visual scales, and with the assistance of a crane for lifting the coil, operation is simple and efficient, significantly improving production efficiency and product quality. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A DC cable armoring device, characterized in that, include: First guide clamping mechanism (100), second guide clamping mechanism (200) and armor strap release mechanism (300); The first guide clamping mechanism (100) and the second guide clamping mechanism (200) are arranged vertically at intervals, and the first guide clamping mechanism (100) and the second guide clamping mechanism (200) are used to cooperate in vertical cable passage; The armor strap release mechanism (300) is disposed between the first guide clamping mechanism (100) and the second guide clamping mechanism (200).

2. The DC cable armoring device according to claim 1, characterized in that, The first guide clamping mechanism (100) includes: a first adjusting wheel group; The first adjusting wheel assembly is located upstream of the vertical DC cable, and the first adjusting wheel assembly can open and close radially along the vertical DC cable; The second guide clamping mechanism (200) includes: a second adjusting wheel assembly; The second adjusting wheel assembly is located downstream of the vertical DC cable, and the second adjusting wheel assembly can open and close radially along the vertical DC cable.

3. The DC cable armoring device according to claim 2, characterized in that, The first adjusting wheel assembly includes: a first moving guide wheel (110), a second moving guide wheel (120), and a first driving part (130). The first moving guide wheel (110) and the second moving guide wheel (120) are respectively disposed on both sides of the vertical DC cable. The first driving part (130) is used to drive the first moving guide wheel (110), and / or the second moving guide wheel (120) moves towards or away from the vertical DC cable along the radial direction of the DC cable. The second adjusting wheel assembly includes: a third moving guide wheel (210), a fourth moving guide wheel (220), and a second drive unit (230); The third moving guide wheel (210) and the fourth moving guide wheel (220) are respectively disposed on both sides of the vertical DC cable. The second driving part (230) is used to drive the third moving guide wheel (210), and / or the fourth moving guide wheel (220) moves towards or away from the vertical DC cable along the radial direction of the DC cable.

4. The DC cable armoring device according to claim 1, characterized in that, The armored tape feeding mechanism (300) includes: a base (310), multiple tape feeding base plates (320), and a base rotation drive unit (330). The base (310) is disposed between the first guide clamping mechanism (100) and the second guide clamping mechanism (200), and the base (310) is provided with a through hole for the vertical DC cable to pass through; Each of the tape-laying base plates (320) is arranged in a ring array on the substrate (310) with the center of the perforation as the array center. The base rotation drive unit (330) is connected to the base (310) and is used to drive the base (310) to rotate.

5. The DC cable armoring device according to claim 4, characterized in that, The armor strapping mechanism (300) further includes: multiple height adjustment parts (340), and the strapping base plate (320) is connected to the base (310) one by one through the height adjustment parts (340); The height adjustment part (340) includes: a first connecting post (341), a second connecting post (342), an adjusting nut (343), and a limiting body (344). One end of the first connecting post (341) is connected to the base (310), and a limiting groove is provided at the end of the first connecting post (341) facing the tape base plate (320); One end of the second connecting post (342) is connected to the tape base plate (320), and the end of the second connecting post (342) facing the first connecting post (341) is connected to the limiting body (344). The limiting body (344) is axially slidably inserted into the limiting groove. The adjusting nut (343) is threadedly connected to the first connecting post (341) and the second connecting post (342). The adjusting nut (343) is used to drive the second connecting post (342) to move axially toward or away from the first connecting post (341).

6. The DC cable armoring device according to claim 5, characterized in that, The outer wall of the first connecting column (341) is provided with size adjustment marks; The height adjustment unit (340) further includes: a scale cylinder (345); The scale cylinder (345) is slidably sleeved on the outside of the first connecting post (341) and connected to the adjusting nut (343).

7. The DC cable armoring device according to claim 5, characterized in that, The armor strap feeding mechanism (300) further includes: a bracket (350), a tilting table (360), and a tilting drive unit (370). The bracket (350) is connected to the second connecting column (342); The tilting table (360) is rotatably connected to the support (350), and the tape-laying base plate (320) is disposed on the tilting table (360). The flipping drive unit (370) is connected between the flipping table (360) and the bracket (350) and is used to drive the flipping table (360) to flip relative to the bracket (350) to adjust the armor angle.

8. The DC cable armoring device according to claim 7, characterized in that, The armor strap release mechanism (300) further includes: a flip angle marking section (380); The flip angle marking part (380) is disposed on the flip drive part (370) and is used to mark the flip angle of the flip drive part (370).

9. The DC cable armoring device according to claim 7, characterized in that, The tape-laying base plate (320) includes: a base plate body (321); The base plate body (321) is rotatably connected to the tilting table (360); The DC cable armoring device also includes: a tension adjustment mechanism (400). The tension adjustment mechanism (400) can press against the base plate body (321), and the tension adjustment mechanism (400) can move in a direction toward or away from the base plate body (321) to adjust the rotational resistance of the base plate body (321).

10. The DC cable armoring device according to claim 9, characterized in that, The tape-laying base plate (320) also includes: multiple support blocks (322) and a support drive unit (323); Each of the support blocks (322) is arranged in a ring around the base plate body (321) as the array center. The support drive unit (323) is connected to each of the support blocks (322) and is used to drive each of the support blocks (322) to move radially along the base plate body (321).

11. The DC cable armoring device according to claim 10, characterized in that, An elastic buffer is provided between each of the support blocks (322) and the support drive part (323).

12. The DC cable armoring device according to claim 10, characterized in that, The base plate body (321) is also provided with a plate retrieval groove (324), which is located between adjacent support blocks (322).

13. The DC cable armoring device according to any one of claims 1 to 12, characterized in that, The DC cable armoring device also includes: multiple directional guide wheels (500). At least one of the directional guide wheels (500) is respectively arranged upstream of the first guide clamping mechanism (100) and downstream of the second guide clamping mechanism (200).

14. The DC cable armoring device according to claim 1, characterized in that, The DC cable armoring device also includes: a frame (600). The first guide clamping mechanism (100), the second guide clamping mechanism (200) and the armored strap release mechanism (300) are all disposed on the frame (600).

15. A method for armoring a DC cable, characterized in that, Includes the following steps: The DC cable is passed sequentially through the first guide clamping mechanism (100) and the second guide clamping mechanism (200). The armored cable delivery mechanism (300) armors a vertical DC cable between the first guide clamping mechanism (100) and the second guide clamping mechanism (200).

16. The armoring method for a DC cable according to claim 15, characterized in that, Before the step of passing the DC cable sequentially through the first guide clamping mechanism (100) and the second guide clamping mechanism (200), the method further includes: Adjust the first guide clamping mechanism (100) and the second guide clamping mechanism (200) to make the first guide clamping mechanism (100) and the second guide clamping mechanism (200) coaxially guided; Before the step of armoring the vertical DC cable between the first guide clamping mechanism (100) and the second guide clamping mechanism (200) in the armored cable unloading mechanism (300), the following steps are also included: Rotate each adjusting nut (343) to adjust the corresponding tape base plate (320) to the corresponding target height; Adjust the flipping drive unit (370) so that the flipping table (360) drives the tape feeding base plate (320) to flip to the target tape feeding angle; Adjust the tension adjustment mechanism (400) so that the tension adjustment mechanism (400) presses against the base plate body (321) with the target pressure; Adjust the support drive unit (323) to move each support block (322) radially to support the fixed steel strip disc.

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