Anti-falling tension buffer spacer and rapid assembly method of main body structure thereof

Abstract

This invention discloses a rapid assembly method for an anti-detachment tension buffer spacer and its main structure, belonging to the field of power fittings technology for transmission lines. It includes a main structure, a rubber core, and pre-twisted wire. The main structure comprises two relatively spaced frames, and multiple wire clamps and multiple rigid arc tubes disposed between the two frames. The rubber core serves as a buffer layer covering the outer periphery of the transmission line, and the pre-twisted wire is wound and wrapped around the outer periphery of the combination of the transmission line and the rubber core. The invention also includes an assembly method for rapidly manufacturing the main structure based on a dedicated quick-assembly workbench for anti-detachment spacers. This invention achieves rapid assembly of the anti-detachment spacer through multi-station synchronous operation and dynamic bolt control strategies, significantly shortening the assembly cycle of a single product and greatly improving batch production efficiency.

Description

Technical Field

[0001] This invention relates to the field of power fittings technology for transmission lines, and more specifically, to an anti-disengagement tension buffer spacer with extremely strong anti-disengagement capability, which can effectively resist the impact tension when the conductor breaks, thereby effectively preventing a single-point fault from evolving into a large-scale power grid accident, as well as a rapid assembly method for the main structure of the spacer. Background Technology

[0002] In high-voltage and ultra-high-voltage transmission lines, split conductors are subjected to alternating mechanical stresses over long periods due to dynamic loads such as wind vibration, galloping, and icing. To ensure stable spacing between the sub-conductors, suppress conductor oscillations, and reduce electromagnetic losses, a certain number of spacers must be installed within the line span according to design requirements.

[0003] Currently, the traditional spacer bars widely used in the industry (mainly damping or rigid types) typically have a clamping force (static gripping force) on the conductor designed to be in the range of 2-4 kN (approximately 200-400 kgf). This gripping force level is sufficient under normal operating conditions. However, when the line encounters extreme conditions, such as lightning strikes, external damage, material fatigue, or runaway tension causing a sub-conductor to break, the enormous elastic potential energy accumulated in the broken conductor will be released instantaneously, generating an impact-induced pull-out force far exceeding normal levels.

[0004] Under such extreme conditions, traditional spacers exhibit the following shortcomings: 1. Grip failure; the broken wire will easily be pulled out of the clamp, and the unrestrained wire segment will rebound violently under tension, creating a huge "whipping" effect.

[0005] Second, cascading damage; the pulled-out conductor may not only fall to the ground, but also cause secondary impacts on adjacent conductors and tower components, which can easily induce cascading damage, leading to the breakage of adjacent conductors or the destruction of the spacer bar itself. This can cause the fault range to expand rapidly from a single point of disconnection to a major regional and multi-phase power grid accident, seriously threatening the safe operation of the power grid, and resulting in huge repair difficulties and economic losses.

[0006] Therefore, there is an urgent need in the existing technology for a highly reliable spacer bar that can firmly hold the broken conductor in the event of an extreme line breakage accident, preventing it from being pulled out and flung, thereby effectively curbing the escalation of the accident.

[0007] The main structure of the anti-dislodgement tension buffer spacer of this invention has many components and a compact assembly space. During assembly, if the traditional "sequential assembly of individual parts" method is used, the bolts not yet connected to the nut assembly are in an "unrestrained" state. When inserting and positioning adjacent parts, displacement or detachment is easily caused due to a lack of support, resulting in parts falling off easily, frequent process interruptions, and low assembly efficiency. If the "step-by-step assembly method" is used, fixing the frame and clamps first and then installing the rigid arc tube, the rigid arc tube needs to be installed between the already fixed frames. This results in limited operating space and a lack of visual alignment references, making it a time-consuming, labor-intensive, and precision-uncontrollable "blind assembly" operation. Therefore, existing conventional assembly methods are insufficient to achieve efficient, accurate, and reliable assembly of the spacer of this invention. Summary of the Invention

[0008] The purpose of this invention is to address the shortcomings of existing technologies by providing an anti-disengagement tension buffer spacer with extremely strong anti-disengagement capability, which can effectively resist the impact tension when the conductor breaks, thereby effectively preventing a single-point fault from evolving into a large-scale power grid accident, as well as a rapid assembly method for the main structure of the spacer.

[0009] This invention is achieved through the following technical solution: A tension buffer spacer bar designed to prevent slippage includes a main structure, a rubber core, and pre-twisted wires; The main structure includes two frames arranged at relative intervals, and a plurality of wire clamps and a plurality of rigid arc tubes disposed between the two frames; the wire clamps are evenly distributed along the circumference of the frames, the rigid arc tubes are located between two adjacent wire clamps, and the wire clamps and rigid arc tubes are all fixedly connected to the frames as a whole. The rubber core serves as a buffer layer covering the outer periphery of the power transmission line; The pre-twisted wire is wrapped around the periphery of the combination of the power transmission line and the rubber core, and both ends of the pre-twisted wire terminate on the power transmission line segment outside the rubber core; in the section corresponding to the rubber core, the inner diameter of the pre-twisted wire is increased due to the internal wrapping of the rubber core, thereby forming a radially protruding deformation part, which is used to be clamped by the wire clamp.

[0010] Preferably, the frame is provided with bolt holes for the arc tube and bolt holes for the wire clamp; the two ends of the rigid arc tube are provided with arc tube mounting holes corresponding to the bolt holes for the arc tube; The rigid arc tube is fixedly connected to the frame using arc tube bolt fasteners; the wire clamp is fixedly connected to the frame using wire clamp bolt fasteners.

[0011] Preferably, the arc tube bolt fastener includes an arc tube bolt and an arc tube nut assembly; the wire clamp bolt fastener includes a wire clamp bolt and a wire clamp nut assembly; wherein, the arc tube bolt and the wire clamp bolt are both riveting bolts with blind holes at the tail; the frame is also provided with anti-galling device mounting holes.

[0012] Preferably, the rubber core is formed by symmetrically joining two rubber pads of the same shape along the splicing surface, and the rubber pads are provided with a transmission line mounting groove with an arc-shaped cross section along the axial direction; and the outer diameter of the middle part of the rubber core is smaller than the outer diameter of its two ends.

[0013] A rapid assembly method for the main body structure of an anti-detachment tension buffer spacer includes the following steps. Step 1: Prepare the frame, wire clamps, rigid arc tube, arc tube bolts and fasteners, and wire clamp bolts and fasteners; The frame is provided with bolt holes for the arc tube, bolt holes for the wire clamp, and mounting holes for the anti-galling device; the rigid arc tube is provided with mounting holes for the arc tube at both ends; The arc pipe bolt fastener includes an arc pipe bolt and an arc pipe nut assembly; the wire clamp bolt fastener includes a wire clamp bolt and a wire clamp nut assembly; Step 2: Prepare a special quick-installation workbench for the anti-dislodgement spacer; The special quick-assembly workbench for the anti-dislodgement spacer bar has multiple identical operating stations. Each workstation has a clearance through hole on the table surface, and a base positioning component coaxially arranged with the clearance through hole is fixedly installed. The base positioning component includes a positioning ring; the positioning ring has multiple column action holes, each corresponding to a bolt hole for the arc tube and a bolt hole for the wire clamp; the positioning ring has base positioning protrusions corresponding to the mounting holes of the anti-fighting device; the positioning ring has multiple base frame arc positioning posts and multiple base clamp positioning posts on its circumferential edge; the positioning ring also has multiple wire clamp positioning seats fixed on the platform, each corresponding to a mounting position of the wire clamp. Each of the operating stations is equipped with a group of liftable bolt columns and a lifting positioning platform that can move up and down within the clearance through hole. The bolt column group includes multiple bolt pre-positioned columns, each bolt pre-positioned column corresponding to a column actuation hole and having a clearance fit. The lifting and positioning platform includes multiple limiting supports and multiple locking claws. The limiting supports and the locking claws are evenly distributed circumferentially on the lifting and positioning platform and can extend and retract radially. The locking claws are located above the limiting supports. When the limiting supports and the locking claws are both in the radially extended stroke position, the diameter of the circumscribed circle formed by the free ends of the multiple limiting supports is larger than the diameter of the circumscribed circle formed by the free ends of the multiple locking claws. Step 3: Pre-install bolts; On the bolt pre-installation columns of the bolt column group, pre-install bolts for arc tubes and bolts for wire clamps in sequence, with the bolt heads facing down and the tails facing up, and temporarily fix them to the bolt pre-installation columns; Drive the bolt column group to descend to the low-position avoidance travel position; the low-position avoidance travel position means that the end face of each bolt is not higher than the upper end face of the positioning ring; Step 4: Locate the lower frame; One of the frames is used as the lower frame, and the positioning ring is used as the positioning reference to determine the assembly position of the lower frame. Step 5: Positioning wire clamps and rigid arc tubes; Drive the lifting and positioning platform to the raised stroke position, and control the limit support platform to be in the radial extension stroke position; Drive the bolt column group to move upward to the middle clearance stroke position; the middle clearance stroke position means that the end face of each bolt is not higher than the upper end face of the limiting support when it is in the lifting stroke position; Using the wire clamp positioning seat and the base clamp positioning post as positioning references, each wire clamp is positioned sequentially; using the free end side face of the limiting support platform and the base frame arc positioning post as positioning references, each rigid arc tube is positioned sequentially. Step Six: Position the upper frame; Using another frame as the upper frame, with the limiting support as the positioning reference, determine the assembly position of the upper frame, and lock the position of the upper frame using the locking claw; drive the lifting positioning platform to the return stroke position, at which point the upper frame falls to the assembly position; Step 7: Install the nut assembly; drive the bolt column group upward to the installation stroke position, so that each bolt passes through its corresponding bolt hole on the upper frame synchronously; the installation stroke position is the position where the inner end face of the bolt head of each bolt abuts against the lower end face of the lower frame; then tighten the corresponding nut assembly at the tail of each bolt in sequence.

[0014] Preferably, the bolt pre-positioned column includes a column body and a permanent magnet embedded in the column body, and the head of the column body has a countersunk bolt hole that matches the bolt head.

[0015] Preferably, the bolt column group is fixedly installed on the column support platform; the column support platform is driven by a column linear actuator; the column linear actuator is supported by a column fixing frame fixed to the platform.

[0016] Preferably, the free end face of the limiting support is provided with a limiting groove for the arc tube that is adapted to the contour shape of the rigid arc tube; the upper end face of the limiting support is provided with an upper frame positioning member that is adapted to the contour shape of the inner ring of the frame. The inner ring of the frame is also provided with a protruding claw, and the locking claw is provided with a claw groove that matches the protruding claw.

[0017] Preferably, the radial movement of the limiting support is driven by a support linear driver; the radial movement of the locking claw is driven by a claw linear driver; both the support linear driver and the claw linear driver are fixedly installed on the center plate of the lifting and positioning platform, and the lifting movement of the center plate is driven by the center plate linear driver.

[0018] Preferably, the center stage linear actuator is fixed to the platform by a center stage mounting plate; a guide seat is also fixedly provided on the housing of the center stage linear actuator, and a guide rod that is slidably fitted in the guide seat is fixedly installed on the center stage plate.

[0019] Compared with the prior art, the beneficial effects of the present invention are: The spacer bar of this invention has extremely high resistance to pull-out. Through the composite buffer structure composed of pre-twisted wire, rubber core, wire clamp, and rigid arc tube, the static holding force on the transmission line can reach about 60kN (about 6 tons of force), which is more than an order of magnitude higher than that of traditional spacers. Thus, it can effectively prevent pull-out and swinging in the extreme case of conductor breakage, and completely curb the chain of major power grid accidents caused by the "whipping effect" and secondary impact. At the same time, its excellent dynamic buffer performance also helps to extend the service life of the line.

[0020] The assembly method of this invention utilizes multiple synchronous operation stations on a special quick-assembly workbench for anti-dislodgement spacers, combined with bolt pre-setting, multi-stage avoidance stroke, and layered positioning mechanism, to achieve rapid, efficient, and reliable assembly of anti-dislodgement tension buffer spacers. It effectively overcomes the problems of easy part loss and process interruption in the "sequential assembly method" and the need for blind assembly and poor accuracy in the "step-by-step assembly method".

[0021] The core of this invention lies in the dynamic control of the bolt's role: During the low-position avoidance stroke, the bolt, as the "target to be protected," is hidden below the placement surface, avoiding the collision risk between the lower frame and the bolt. This also transforms multi-point alignment into a single, rapid positioning of the lower frame and the positioning ring, significantly reducing assembly difficulty and alignment risk. During the mid-position avoidance stroke, the bolt's role switches to a "referenceable real-time benchmark." This allows operators to simultaneously eliminate accumulated assembly errors from multiple workstations when placing the clamps and rigid arc tubes, eliminating the need for additional alignment adjustments. Furthermore, during upper frame installation, direct alignment of the bolt is transformed into indirect alignment using positioning features such as the limiting support, thus avoiding the collision risk between the lower frame and the bolt. The combination of multi-station synchronous action and the "indirect alignment-reference-indirect alignment" bolt stroke strategy transforms the tedious, error-prone, and skill-dependent assembly process into standardized, batch-based, and highly efficient operations, significantly improving production efficiency, product consistency, and yield.

[0022] This invention achieves rapid assembly of anti-dislodgement spacers through multi-station synchronous operation and dynamic bolt control strategy, significantly shortening the assembly cycle of single products and greatly improving batch production efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the spacer bar structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the spacer bar structure of the present invention (partially hidden).

[0025] Figure 3 This is the present invention. Figure 2 Enlarged view of point A in the middle.

[0026] Figure 4 This is the present invention. Figure 2 Enlarged view of section B in the middle.

[0027] Figure 5 This is the present invention. Figure 2 Enlarged view of point C in the middle.

[0028] Figure 6 This is a three-dimensional structural diagram of the main structure of the present invention.

[0029] Figure 7 This is the present invention. Figure 6 A schematic diagram of the structure after the upper frame of the lieutenant general is hidden.

[0030] Figure 8 This is the present invention. Figure 7 Enlarged view of point D in the middle.

[0031] Figure 9 This is an exploded schematic diagram of the main structure of the spacer bar of the present invention.

[0032] Figure 10 This is a schematic diagram of the three-dimensional structure of the quick-assembly workbench for the anti-spinning spacer of the present invention.

[0033] Figure 11 This is the present invention. Figure 9 Enlarged view of a portion of the image.

[0034] Figure 12 This is a schematic diagram of the structure of the limiting support and locking claw when one of the upper frame positioning components is used in this invention.

[0035] Figure 13 This is a schematic diagram of the structure of the limiting support and locking claw when one of the upper frame positioning components is used in this invention.

[0036] Figure 14 This is a partial structural diagram of the bottom view of the quick-installation workbench for the anti-spinning spacer of the present invention.

[0037] Figure 15 This is the present invention. Figure 14 Enlarged view of a portion of the image.

[0038] Figure 16 This is a schematic diagram of the bottom view structure of the lifting and positioning platform of the present invention.

[0039] Figure 17 This is a schematic diagram of the limiting support platform of the special quick-installation workbench for anti-dislodgement spacers of the present invention when supporting the upper frame.

[0040] Figure 18 This is the present invention. Figure 17 Enlarged view of a portion of the image.

[0041] In the picture: 1. Transmission line; 21. Rubber core; 211. Rubber pad; 22. Pre-stretched wire; 221. Deformation section; 23. Main structure; 231. Frame; 2311. Bolt hole for arc tube; 2312. Bolt hole for wire clamp; 2313. Anti-gallery mounting hole; 2314. Claw; 232. Wire clamp; 233. Rigid arc tube; 2331. Arc tube mounting hole; 234. Arc tube bolt fastener; 2341. Bolt for arc tube; 2342. Nut assembly for arc tube; 235. Wire clamp bolt fastener; 2351. Bolt for wire clamp; 2352. Nut assembly for wire clamp; 31. Tabletop; 311. Clearance through hole; 32. Base positioning component; 321. Positioning ring; 3211. Column movement hole; 3212. Base positioning protrusion; 3213. Base frame arc positioning post; 3214. Base clamp positioning post; 331. Bolt pre-placed post; 3311. Column body; 34. Lifting positioning platform; 341. Limiting support platform; 3411. Limiting groove for arc tube; 3413. Inner ring positioning protrusion. 3414 Inner ring positioning plate; 342 Locking claw; 3421 Claw groove; 343 Center platform; 344 Support platform linear actuator; 345 Claw linear actuator; 346 Center platform linear actuator; 347 Center platform mounting plate; 348 Guide seat; 349 Guide rod; 35 Wire clamp positioning seat; 361 Column support platform; 362 Column linear actuator; 363 Column fixing bracket. Detailed Implementation

[0042] To enable readers to better understand the design intent of this invention, the technical solutions described below are further described in conjunction with the accompanying drawings and embodiments. It should be noted that the directional terms that may appear in the following paragraphs, including but not limited to "up," "down," "left," "right," "front," and "back," are based on the visual orientation shown in the accompanying drawings and should not be considered as limiting the scope of protection or technical solutions of this invention. Their purpose is merely to facilitate a better understanding of the technical solutions described in this invention by those skilled in the art.

[0043] In the description of this specification, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances and in conjunction with common knowledge in the field, design specifications, standard documents, etc.

[0044] Example 1

[0045] like Figures 1 to 9As shown, this embodiment provides an anti-disengagement tension buffer spacer, including a main structure 23, a rubber core 21, and pre-twisted wire 22. The main structure 23 includes two relatively spaced frames 231, and multiple wire clamps 232 and multiple rigid arc tubes 233 disposed between the two frames 231. The wire clamps 232 are evenly distributed along the circumference of the frames 231, and each rigid arc tube 233 is located between two adjacent wire clamps 232. Both the wire clamps 232 and the rigid arc tubes 233 are fixedly connected to the frames 231 as a whole. The frames 231 have multiple bolt holes 2311 for the arc tubes and multiple bolt holes 2312 for the wire clamps. The two ends of the rigid arc tubes 233 have arc tube mounting holes 2331 corresponding to the bolt holes 2311. The wire clamps 232 are fixedly connected to the frames 231 using wire clamp bolt fasteners 235; the rigid arc tubes 233 are fixedly connected to the frames 231 using arc tube bolt fasteners 234. Among them, the nut assembly 2342 for arc pipes and the nut assembly 2352 for wire clamps have the same structure and components, both consisting of nuts, elastic washers, and flat washers. The main difference between the two lies in the specific dimensional differences that arise to accommodate bolts of different specifications.

[0046] The rubber core 21 serves as a buffer layer covering the outer periphery of the transmission line 1. The rubber core 21 is formed by symmetrically joining two identical rubber pads 211 along their joint surface. Each rubber pad 211 has an arc-shaped cross-section for installation along its axial direction; and the outer diameter of the middle portion of the rubber core 21 is smaller than the outer diameters of its two ends. During on-site installation, the two rubber pads 211 are joined together and secured with tape, thus forming an hourglass-shaped rubber core 21.

[0047] The pre-twisted wire 22 is wound around the periphery of the combination of the transmission line 1 and the rubber core 21, and both ends of the pre-twisted wire 22 terminate on the transmission line 1 segment outside the rubber core 21. In the section corresponding to the rubber core 21, the inner diameter of the pre-twisted wire 22 is increased due to the internal covering of the rubber core 21, thereby forming a radially protruding deformation portion 221, which is used to be clamped by the wire clamp 232. The shape of the deformation portion 221 is consistent with that of the rubber core 21, and is an hourglass shape that is large at both ends and small in the middle. The wire clamp 232 clamps the middle part of the deformation portion 221, which can enhance the gripping force of the wire clamp 232. In this embodiment, the wire clamp head of the wire clamp 232 adopts a hinged design, and the wire clamp head does not need to be equipped with a rubber pad like the traditional spacer bar wire clamp. Therefore, compared with the traditional structure, the wire clamp of this embodiment is not only cheaper, but also easier to manufacture.

[0048] More specifically, the arc tube bolt fastener 234 in this embodiment includes an arc tube bolt 2341 and an arc tube nut assembly 2342. The wire clamp bolt fastener 235 includes a wire clamp bolt 2351 and a wire clamp nut assembly 2352. Both the arc tube bolt 2341 and the wire clamp bolt 2351 are riveting bolts with blind holes at the tail to prevent loosening during subsequent riveting processes. The frame 231 also has anti-malfunction mounting holes 2313. Ordinary spacer frames typically have anti-malfunction mounting holes; the frame in this product is interchangeable with ordinary spacer frames, facilitating production and reducing costs. Furthermore, for the spacer product in this embodiment, the anti-malfunction mounting holes 2313 also serve a positioning function during product manufacturing, facilitating actual production.

[0049] The installation process at the construction site in this embodiment is as follows: First, the installation points of the rubber core 21 are determined and marked on the transmission line 1. Next, the transmission line is inserted into the transmission line using the transmission line mounting groove on the rubber pad 211. After the two rubber pads 211 are aligned, they are wrapped and fixed with tape to form the body of the rubber core 21. Then, pre-twisted wires 22 are wound around the outside of the rubber core, one section of which forms a deformable part 221 that matches the shape of the rubber core. In this way, rubber cores and pre-twisted wires are installed on all relevant transmission lines. Finally, the wire clamps 232 of the main structure 23 are used to clamp the deformable parts 221 on each pre-twisted wire to complete the overall on-site installation.

[0050] The spacer bar in this embodiment has extremely high resistance to pull-out. It is composed of a composite buffer structure consisting of pre-twisted wire, rubber core, wire clamp, and rigid arc tube. The static holding force on the transmission line can reach about 60kN (about 6 tons of force), which is more than an order of magnitude higher than that of traditional spacers. This can effectively prevent pull-out and swinging in the extreme case of conductor breakage, and completely curb the chain of major power grid accidents caused by the "whipping effect" and secondary impact. At the same time, its excellent dynamic buffer performance also helps to extend the service life of the line.

[0051] Example 2

[0052] like Figures 10 to 18 As shown, this embodiment provides a rapid assembly method for the main body structure of an anti-spinning tension buffer spacer, which is applicable to the rapid manufacturing of the main body structure 23 described in Embodiment 1.

[0053] The specific steps include the following: Step 1: Prepare frame 231, wire clamp 232, rigid arc tube 233, arc tube bolt fastener 234, and wire clamp bolt fastener 235. One spacer product has two frames 231, an upper frame and a lower frame. Frame 231 has bolt holes 2311 for the arc tube, bolt holes 2312 for the wire clamp, and anti-galling device mounting holes 2313. The rigid arc tube 233 has arc tube mounting holes 2331 at both ends. Arc tube bolt fastener 234 includes an arc tube bolt 2341 and an arc tube nut assembly 2342; wire clamp bolt fastener 235 includes a wire clamp bolt 2351 and a wire clamp nut assembly 2352.

[0054] Step 2: Prepare a special quick-release workbench for the anti-dislodgement spacer.

[0055] The anti-dislodgement spacer special quick-installation workbench has multiple identical operating stations, Figure 10 As shown in the example, a workbench has four operating stations. The actuators on the four operating stations move synchronously under the control of the controller.

[0056] Specifically, each operating station has a clearance through hole 311 on the table surface 31, and a base positioning component 32 coaxially arranged with the clearance through hole 311 is fixedly installed. The base positioning component 32 includes a positioning ring 321, which can be fixed to the table surface 31 by welding. The positioning ring 321 has multiple column action holes 3211, which correspond one-to-one with the positions of the bolt holes 2311 for the arc tube and the bolt holes 2312 for the wire clamp. The positioning ring 321 also has base positioning protrusions 3212 corresponding to the positions of the anti-flying device mounting holes 2313. The positioning ring 321 has multiple base frame arc positioning posts 3213 and multiple base clamp positioning posts 3214 on its circumferential edge. The base frame arc positioning posts 3213 are used to assist in positioning the frame 231 and the rigid arc tube 233; the base clamp positioning posts 3214 are used to assist in positioning the wire clamp 232.

[0057] like Figure 11 As shown, each of the positioning rings 321 has two base clamp positioning posts 3214 adjacent to each wire clamp positioning seat 35. Except for the base clamp positioning posts 3214, the remaining positioning posts are base frame arc positioning posts 3213. The positioning ring 321 also has multiple wire clamp positioning seats 35 fixed to the platform 31, with the positions of the wire clamp positioning seats 35 corresponding one-to-one with the installation positions of the wire clamps 232. The wire clamp positioning seats 35 and the base clamp positioning posts 3214 together determine the position of the wire clamp. The wire clamp positioning seats 35 have vertically formed cross grooves, which provide self-tensioning, ensuring that the wire clamp does not wobble during assembly.

[0058] Each operating station is equipped with a group of adjustable bolt columns and a lifting positioning platform 34 that can move up and down within the clearance through hole 311.

[0059] The bolt post group includes multiple bolt pre-positioned posts 331, each corresponding to a post actuation hole 3211 with clearance fit. By controlling the up and down movement of the bolt pre-positioned posts 331, the up and down stroke of each bolt can be changed.

[0060] The lifting and positioning platform 34 includes multiple limiting supports 341 and multiple locking claws 342. The limiting supports 341 and locking claws 342 are evenly distributed circumferentially on the lifting and positioning platform 34, and all can extend and retract radially. The locking claws 342 are located above the limiting supports 341. When both the limiting supports 341 and the locking claws 342 are in the radially extended stroke position, the diameter of the circumscribed circle formed by the free ends of the multiple limiting supports 341 is larger than the diameter of the circumscribed circle formed by the free ends of the multiple locking claws 342. The annular area formed by the difference in diameter is used to support the upper frame.

[0061] Step 3: Pre-install bolts; On the bolt pre-installation column 331 of the bolt post group, pre-install the arc tube bolts 2341 and the wire clamp bolts 2351 in sequence, with the bolt heads facing down and the tails facing up, and temporarily fix them to the bolt pre-installation column 331. At this time, the position of the bolt post group is used as the initial position. There is no specific stroke requirement for this initial position; it only needs to be convenient for placing bolts and can be set according to operating habits.

[0062] After all bolts at the four operating stations are placed in sequence, the bolt column group is driven down to the low-position clearance travel position; here, the low-position clearance travel position means that the tail end face of each bolt is not higher than the upper end face of the positioning ring 321. This travel design is to avoid damage to the product due to impact with the bolts when placing the lower frame; on the other hand, it is to transform the alignment of "lower frame and each bolt" into the alignment of "lower frame and positioning ring 321", thereby greatly reducing the assembly difficulty. In this embodiment, the bolt column group has four travel positions: the initial position; the low-position clearance travel position; the middle-position clearance travel position; and the installation travel position.

[0063] Step 4: Locate the lower frame; One of the frames, 231, is used as the lower frame. The positioning ring 321 is used as the positioning reference to determine the assembly position of the lower frame. Specifically, the lower frame is placed on the positioning ring 321, so that the anti-fighting device mounting hole 2313 fits into the base layer positioning protrusion 3212, and the edge of the lower frame abuts against the base layer frame arc positioning post 3213, thereby determining the assembly position of the lower frame, and this position is the only determined assembly position.

[0064] Step 5: Positioning wire clamp 232 and rigid arc tube 233; The lifting and positioning platform 34 is driven to the raised stroke position, and the limiting support platform 341 is controlled to be in the radially extended stroke position. The lifting and positioning platform 34 has only two stroke positions: the "raised stroke position" and the "lowered stroke position". Correspondingly, the limiting support platform 341 and the locking claw 342 also correspond to only these two stroke positions in terms of height. In addition, the limiting support platform 341 and the locking claw 342 also have only two stroke positions in the radial direction: the "radial extended stroke position" and the "radial retracted stroke position". The motion control is simple and easy to implement.

[0065] The drive bolt column group moves upward to the neutral clearance travel position; the neutral clearance travel position means that the end face of each bolt is not higher than the upper end face of the limit support 341 when it is in the raised travel position. This neutral clearance travel design has the following two key functions: Firstly, it eliminates assembly errors in real time, ensuring smooth bolt alignment and insertion. If this centering clearance stroke is not set, meaning the bolt tail end face is lower than the lower frame surface, the bolt will only be driven upwards to insert into the bolt holes at each level after the clamps, rigid arc tubes, and upper frame are positioned. At this point, due to the large number of clamps 232 and rigid arc tubes 233 (four stations operate simultaneously, with 32 clamps and 32 rigid arc tubes each), assembly errors between components can easily accumulate, leading to inaccurate bolt alignment and difficulty in smoothly passing through the bolt holes at each level. By setting the aforementioned centering clearance stroke, the operator can simultaneously eliminate potential assembly errors in real time while placing the clamps and rigid arc tubes one by one, thus avoiding drilling difficulties caused by accumulated errors.

[0066] Secondly, it prevents bolts from colliding during the placement of the upper frame, thus avoiding product damage. If the center clearance travel position rises too high (i.e., the bolt tail end face exceeds the upper end face of the limit support), then each bolt needs to be aligned individually when placing the upper frame, which is difficult to operate and highly prone to collisions that could damage the bolts. By limiting the center clearance travel position to ensure that the bolt tail end face does not exceed the upper end face of the limit support, and having the limit support determine the position of the upper frame, the alignment object can be effectively changed from the individual bolts to the limit support, thereby preventing bolt damage.

[0067] After the bolt column group moves upward to the center clearance position, each wire clamp 232 is positioned sequentially using the wire clamp positioning seat 35 and the base clamp positioning post 3214 as positioning references; each rigid arc tube 233 is positioned sequentially using the free end side face of the limiting support 341 and the base frame arc positioning post 3213 as positioning references. During placement, even if occasional misalignment occurs, the operator can use each bolt as a reference to adjust in real time, eliminating assembly errors, and the wire clamps 232 and rigid arc tubes 233 can be easily and smoothly inserted.

[0068] Step Six: Positioning the Upper Frame; Using another frame 231 as the upper frame, and with the limiting support 341 as the positioning reference, determine its assembly position. The position of the upper frame can be determined using the unique positioning relationship between the limiting support 341 and the upper frame. Furthermore, during placement, the anti-gallop device mounting holes on the upper frame correspond one-to-one with those on the lower frame. At this time, the bolt holes on the upper frame are aligned with the bolts. After positioning, the upper frame position is locked using the locking claw 342. Then, the lifting positioning platform 34 is driven to the return stroke position, causing the upper frame to fall to the assembly position. The upper frame assembly position is the position where the upper frame forms an installation fit with the rigid arc tube 233 and the wire clamp 232.

[0069] Step 7: Install the nut assembly; drive the bolt column group upwards to the installation stroke position, and each bolt simultaneously passes through its corresponding bolt hole on the upper frame; the installation stroke position is where the inner end face of each bolt head abuts against the lower end face of the lower frame; then tighten the corresponding nut assembly at the tail of each bolt in sequence. In this step, the nut assembly can be installed in one go using installation tools such as an jackhammer, according to the set torque.

[0070] After all nut assemblies are installed, the main structure 23 is assembled. The bolt post group returns to its initial position, and the locking claw 342 and the limiting support 341 return to their radial retraction stroke positions, awaiting the assembly of the next workpiece, and so on.

[0071] The core of this embodiment lies in the dynamic control of the bolt's role: During the low-position avoidance stroke, the bolt, as the "target to be protected," is hidden below the placement surface, avoiding the collision risk between the lower frame and the bolt. This also transforms the multi-point, step-by-step alignment into a single, rapid positioning between the lower frame and the positioning ring, significantly reducing assembly difficulty and alignment risk. During the mid-position avoidance stroke, the bolt's role switches to a "referenceable real-time benchmark." This allows operators to simultaneously eliminate accumulated assembly errors from multiple workstations when placing the clamps and rigid arc tubes, eliminating the need for additional alignment adjustments. Furthermore, during upper frame installation, direct alignment of the bolt is transformed into indirect alignment using positioning features such as the limiting support, thus avoiding the collision risk between the lower frame and the bolt. The combination of multi-station synchronous action and the "indirect alignment-reference-indirect alignment" bolt stroke strategy transforms the tedious, error-prone, and skill-dependent assembly process into standardized, batch-based, and highly efficient operations, significantly improving production efficiency, product consistency, and yield.

[0072] This embodiment achieves rapid assembly of anti-dislodgement spacers through multi-station synchronous operation and bolt dynamic control strategy, significantly shortening the assembly cycle of single products and greatly improving batch production efficiency.

[0073] Example 3

[0074] Based on Embodiment 2, this embodiment continues to describe in detail the technical features involved therein and the functions and roles of these technical features in the present invention, so as to help those skilled in the art to fully understand the technical solution of the present invention and reproduce it.

[0075] In this embodiment, the bolt pre-positioned column 331 includes a column body 3311 and a permanent magnet embedded in the column body 3311. The head of the column body 3311 has a countersunk bolt hole that matches the bolt head. When the bolt head is facing down and the tail is facing up, the bolt head is attracted into the countersunk bolt hole, thereby achieving temporary fixation of each bolt.

[0076] In this embodiment, the bolt column group is fixedly installed on the column support platform 361; the column support platform 361 is driven by the column linear actuator 362; the column linear actuator 362 is supported by the column fixing bracket 363 fixed to the platform 31. The column linear actuator 362 pushes the column support platform 361 to move up and down, thereby driving the bolt column group to move up and down.

[0077] In this embodiment, as Figure 11 , Figure 12 As shown, the free end face of the limiting support 341 is provided with a limiting groove 3411 for the arc tube, which is adapted to the contour shape of the rigid arc tube 233. The limiting groove 3411 for the arc tube works together with the base frame arc positioning post 3213 to achieve the positioning of the rigid arc tube 233. During the placement of the rigid arc tube 233 and the wire clamp 232, accurate positioning can usually be achieved by relying on the designed positioning reference, but occasionally misalignment may occur due to slight deviations. At this time, the worker can visually check the alignment between the wire clamp 232, the rigid arc tube 233 and the corresponding bolts (bolt 2351 for the wire clamp, bolt 2341 for the arc tube) during the placement process, and adjust and eliminate assembly errors in real time.

[0078] The position of the upper frame can be determined using the unique positioning relationship between the limiting support 341 and the upper frame, and there are various ways to achieve this. In this embodiment, the limiting support 341 has an upper frame positioning component on its upper end face that matches the inner contour shape of the frame 231. The upper frame positioning component can be, for example... Figure 12 The inner ring positioning protrusion 3413 shown can also be as follows: Figure 13 The inner ring positioning piece 3414 is shown. Because the inner ring contour of the frame is irregular, the positioning of the upper frame can be achieved through the unique correspondence between the inner ring positioning protrusion 3413, the inner ring positioning piece 3414, and the inner ring contour. In this embodiment, the upper frame positioning component of some limiting support platforms 341 is the inner ring positioning protrusion 3413 (e.g., Figure 12 , 17 Some are inner ring positioning pieces 3414 (as shown in Figure 18). Figure 13 ,17 (As shown in Figure 18).

[0079] In this embodiment, the inner ring of the frame 231 is also provided with a protruding claw 2314, and the locking claw 342 is provided with a claw groove 3421 that matches the protruding claw 2314. When the locking claw 342 is in the radially extended stroke position, its claw groove 3421 and the protruding claw 2314 mesh with each other, and the position of the lower frame is locked by pressing the protruding claw 2314.

[0080] In this embodiment, the radial movement of the limiting support 341 is driven by the support linear actuator 344; the radial movement of the locking claw 342 is driven by the claw linear actuator 345. Both the support linear actuator 344 and the claw linear actuator 345 are fixedly mounted on the central platform 343 of the lifting and positioning platform 34. Specifically, they are mounted on the front and back sides of the central platform 343, respectively, which saves space and improves installation stability. The lifting movement of the central platform 343 is driven by the central platform linear actuator 346.

[0081] In this embodiment, the platform linear actuator 344, the center platform linear actuator 346, the column linear actuator 362, and the claw linear actuator 345 can be conventional linear motion actuators such as pneumatic cylinders, electric cylinders, and hydraulic cylinders.

[0082] In this embodiment, the center stage linear actuator 346 is fixed to the platform 31 via the center stage mounting plate 347; a guide seat 348 is also fixedly provided on the housing of the center stage linear actuator 346, and a guide rod 349 that slides within the guide seat 348 is fixedly installed on the center stage plate 343. The cooperation between the guide seat 348 and the guide rod 349 can improve the stability and accuracy of the lifting positioning platform 34 during operation.

[0083] In summary, these are merely preferred embodiments of the present invention and are not intended to limit the scope of the invention. All equivalent variations and modifications made in accordance with the shape, structure, features, and spirit of the claims of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A tension buffer spacer bar for preventing slippage, characterized in that: It includes the main structure (23), the rubber core (21), and the pre-twisted wire (22); The main structure (23) includes two frames (231) arranged at relative intervals, and a plurality of wire clamps (232) and a plurality of rigid arc tubes (233) arranged between the two frames (231); the wire clamps (232) are evenly distributed along the circumference of the frames (231), and the rigid arc tubes (233) are located between two adjacent wire clamps (232), and the wire clamps (232) and the rigid arc tubes (233) are all fixedly connected to the frames (231) as a whole; The rubber core (21) serves as a buffer layer covering the outer periphery of the power transmission line (1); The pre-twisted wire (22) is wrapped around the periphery of the combination of the power transmission line (1) and the rubber core (21), and both ends of the pre-twisted wire (22) terminate on the power transmission line (1) segment outside the rubber core (21); in the section corresponding to the rubber core (21), the inner diameter of the pre-twisted wire (22) is increased due to the rubber core (21) inside, thereby forming a radially protruding deformable part (221), which is used to be clamped by the wire clamp (232).

2. The anti-dislodgement tension buffer spacer according to claim 1, characterized in that: The frame (231) is provided with bolt holes (2311) for the arc tube and bolt holes (2312) for the wire clamp; the two ends of the rigid arc tube (233) are provided with arc tube mounting holes (2331) corresponding to the bolt holes (2311) for the arc tube. The rigid arc tube (233) is fixedly connected to the frame (231) using arc tube bolt fasteners (234); the wire clamp (232) is fixedly connected to the frame (231) using wire clamp bolt fasteners (235).

3. The anti-dislodgement tension buffer spacer according to claim 2, characterized in that: The arc tube bolt fastener (234) includes an arc tube bolt (2341) and an arc tube nut assembly (2342); the wire clamp bolt fastener (235) includes a wire clamp bolt (2351) and a wire clamp nut assembly (2352); wherein, the arc tube bolt (2341) and the wire clamp bolt (2351) are both riveted bolts with blind holes at the tail; the frame (231) is also provided with anti-flying device mounting holes (2313).

4. The anti-dislodgement tension buffer spacer according to claim 1, characterized in that: The rubber core (21) is formed by symmetrically splicing two rubber pads (211) of the same shape along the splicing surface. The rubber pad (211) has a transmission line installation groove with a circular arc cross section along the axial direction. The outer diameter of the middle part of the rubber core (21) is smaller than the outer diameter of its two ends.

5. A rapid assembly method for the main structure of an anti-dislodgement tension buffer spacer, characterized in that, The following steps are included: Step 1: Prepare the frame (231), wire clamp (232), rigid arc tube (233), arc tube bolt fastener (234), and wire clamp bolt fastener (235); The frame (231) is provided with bolt holes (2311) for the arc tube, bolt holes (2312) for the wire clamp and mounting holes (2313) for the anti-fighting device; the rigid arc tube (233) is provided with arc tube mounting holes (2331) at both ends. The arc pipe bolt fastener (234) includes an arc pipe bolt (2341) and an arc pipe nut assembly (2342); the wire clamp bolt fastener (235) includes a wire clamp bolt (2351) and a wire clamp nut assembly (2352). Step 2: Prepare a special quick-installation workbench for the anti-dislodgement spacer; The special quick-assembly workbench for the anti-dislodgement spacer bar has multiple identical operating stations. Each workstation has a clearance through hole (311) on the table (31) and a base positioning component (32) coaxially arranged with the clearance through hole (311) is fixedly installed. The base positioning component (32) includes a positioning ring (321); the positioning ring (321) has multiple column action holes (3211), and the positions of the column action holes (3211) correspond one-to-one with the positions of the bolt holes (2311) for the arc tube and the bolt holes (2312) for the wire clamp; the positioning ring (321) has a base positioning protrusion (3212) corresponding to the position of the anti-fighting device mounting hole (2313); the positioning ring (321) has multiple base frame arc positioning posts (3213) and multiple base clamp positioning posts (3214) on its circumferential edge; the positioning ring (321) also has multiple wire clamp positioning seats (35) fixed on the table surface (31) around its periphery, and the positions of the wire clamp positioning seats (35) correspond one-to-one with the installation positions of the wire clamps (232); Each of the operating stations is equipped with a group of adjustable bolt columns and a lifting positioning platform (34) that can move up and down within the clearance through hole (311). The bolt column group includes multiple bolt pre-positioned columns (331), each bolt pre-positioned column (331) corresponds one-to-one with the column actuation hole (3211) and is clearance-fitted; The lifting and positioning platform (34) includes multiple limiting supports (341) and multiple locking claws (342). The limiting supports (341) and the locking claws (342) are evenly distributed circumferentially on the lifting and positioning platform (34), and both can extend and retract radially. The locking claws (342) are located above the limiting supports (341). When the limiting supports (341) and the locking claws (342) are both in the radial extension stroke position, the diameter of the circumscribed circle formed by the free ends of the multiple limiting supports (341) is larger than the diameter of the circumscribed circle formed by the free ends of the multiple locking claws (342). Step 3: Pre-install bolts; On the bolt pre-installation column (331) of the bolt column group, pre-install the arc tube bolt (2341) and the wire clamp bolt (2351) in sequence, with the bolt head facing down and the tail facing up, and temporarily fix them on the bolt pre-installation column (331); Drive the bolt column group to descend to the low-position avoidance travel position; the low-position avoidance travel position means that the tail end face of each bolt is not higher than the upper end face of the positioning ring (321); Step 4: Locate the lower frame; One of the frames (231) is used as the lower frame, and the positioning ring (321) is used as the positioning reference to determine the assembly position of the lower frame. Step 5: Positioning wire clamp (232) and rigid arc tube (233); Drive the lifting positioning platform (34) to the lifting stroke position and control the limit support platform (341) to the radial extension stroke position; Drive the bolt column group to move upward to the middle clearance stroke position; the middle clearance stroke position means that the end face of each bolt is not higher than the upper end face of the limiting support (341) when it is in the lifting stroke position; Using the wire clamp positioning seat (35) and the base clamp positioning post (3214) as positioning references, each wire clamp (232) is positioned in sequence; using the free end side face of the limiting support (341) and the base frame arc positioning post (3213) as positioning references, each rigid arc tube (233) is positioned in sequence. Step 6: Position the upper frame; take another frame (231) as the upper frame, use the limiting support (341) as the positioning reference, determine the assembly position of the upper frame, and use the locking claw (342) to lock the position of the upper frame; drive the lifting positioning platform (34) to the return stroke position, at which time the upper frame falls to the assembly position; Step 7: Install the nut assembly; drive the bolt column group upward to the installation stroke position, so that each bolt passes through its corresponding bolt hole on the upper frame synchronously; the installation stroke position is the position where the inner end face of the bolt head of each bolt abuts against the lower end face of the lower frame; then tighten the corresponding nut assembly at the tail of each bolt in sequence.

6. The rapid assembly method for the main body structure of the anti-dislodgement tension buffer spacer according to claim 5, characterized in that: The bolt pre-positioned column (331) includes a column body (3311) and a permanent magnet embedded in the column body (3311). The head of the column body (3311) is provided with a countersunk bolt hole that is compatible with the bolt head.

7. The rapid assembly method for the main body structure of the anti-dislodgement tension buffer spacer according to claim 5, characterized in that: The bolt column group is fixedly installed on the column support platform (361); the column support platform (361) is driven by the column linear actuator (362); the column linear actuator (362) is supported by the column fixing frame (363) fixed to the platform (31).

8. The rapid assembly method for the main body structure of the anti-dislodgement tension buffer spacer according to claim 5, characterized in that: The free end face of the limiting support (341) is provided with a limiting groove (3411) for the arc tube that is adapted to the contour shape of the rigid arc tube (233); the upper end face of the limiting support (341) is provided with an upper frame positioning member that is adapted to the contour shape of the inner ring of the frame (231). The inner ring of the frame (231) is also provided with a protruding claw (2314), and the locking claw (342) is provided with a claw groove (3421) that is adapted to the protruding claw (2314).

9. The rapid assembly method for the main structure of the anti-dislodgement tension buffer spacer according to claim 5, characterized in that: The radial movement of the limiting support (341) is driven by the support linear actuator (344); the radial movement of the locking claw (342) is driven by the claw linear actuator (345); the support linear actuator (344) and the claw linear actuator (345) are both fixedly installed on the center plate (343) of the lifting positioning platform (34), and the lifting movement of the center plate (343) is driven by the center plate linear actuator (346).

10. The rapid assembly method for the main body structure of the anti-dislodgement tension buffer spacer according to claim 9, characterized in that: The central stage linear driver (346) is fixed to the platform (31) via the central stage mounting plate (347); a guide seat (348) is also fixedly provided on the housing of the central stage linear driver (346), and a guide rod (349) that slides in the guide seat (348) is fixedly installed on the central stage plate (343).

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