Anti-swing suspension clamp for overhead lines

Abstract

The present application relates to the technical field of suspension clamp, and discloses a dancing-prevention suspension clamp for overhead line, which comprises a suspension arm and a support plate arranged at the top of the suspension arm, a connecting piece for connecting an external pole tower insulation terminal is fixedly connected to the top of the support plate, a telescopic sliding groove is arranged at the bottom of the inner wall of the suspension arm, and a secondary wire clamping assembly is slidably connected to the inner wall of the telescopic sliding groove. The dancing-prevention suspension clamp for overhead line relies on the upper and lower tapering conical surfaces of the double-cone spindle shell to shear and guide the wind flow, and the arc-shaped flow guide grooves arranged on the conical surfaces further disperse and disorder the air flow, weaken the horizontal wind pressure impact, and improve the horizontal dancing-prevention performance of the whole suspension clamp, thereby ensuring the stability of the daily operation of the overhead line. The counterweight assembly can realize all-around multi-dimensional dancing-prevention buffering effect.

Description

Technical Field

[0001] This invention relates to the field of suspension clamp technology, and in particular to anti-galling suspension clamps for overhead lines. Background Technology

[0002] High-voltage and ultra-high-voltage overhead transmission networks constitute the core carrier for long-distance power transmission. When these lines pass through complex areas such as windy plains, river valleys, and windy coastal areas, airflow excitation can easily induce large-amplitude, low-frequency galloping of the transmission conductors. Suspension clamps, as the core load-bearing hardware between the conductors, insulator strings, and tower crossarms, bear the continuous transmission of vertical and lateral wind loads. Their structural stability and vibration damping capacity directly determine the long-term safety threshold of overhead lines and are indispensable basic components in the line's anti-galloping protection system. Domestically, a systematic design, processing, and testing standard system for transmission line hardware has been established, encompassing various types of suspension clamps. With standardized product series categorized according to load level and voltage level, relying on mature manufacturing processes such as precision forging, integrated die casting, and surface anti-corrosion treatment, the mechanical strength of the fitting body and its long-term outdoor service capability are guaranteed. With the full implementation of power grid disaster relief and reinforcement projects, various anti-galling suspension clamps have been deployed in batches in multiple regions. The product structure continues to iterate and upgrade towards multi-level buffering, multi-angle adaptive swing, and uniform stress distribution. The fillet transition structure of the clamp body is optimized by using finite element mechanical simulation to reduce the stress concentration effect under alternating loads. At the same time, self-locking fastening connectors are used to resist the bolt loosening problem caused by long-term reciprocating galling.

[0003] Chinese patent CN119651459B discloses an anti-galling rotation suspension clamp. By setting a roller inside between the fixed cylinder and the rotating cylinder, the friction between the inner and outer shells is greatly reduced, allowing the clamp to rotate more smoothly. The roller enables the clamp to respond quickly, adjust the position of the wire, and reduce the fatigue stress caused by the wire's galling. By setting symmetrically alternating convex rings, the fit between multiple convex rings, and the annular sealing teeth and grooves, multiple sealing barriers are formed, effectively preventing external dust, moisture, corrosive gases, and other impurities from entering the internal space between the fixed cylinder and the rotating cylinder, avoiding damage to components and contamination of the working medium.

[0004] The above-mentioned method can achieve the anti-galling buffering effect by reducing the friction between the inner and outer shells. However, in actual use, the clamp may not be tight enough or stable, which may cause the clamp to shake further due to the movement of the wire. This reduces the overall structural stability of the clamp and makes it less effective at preventing galloping. At the same time, the clamp is not very effective at buffering horizontal airflow and vertical swaying. The airflow cannot be effectively guided and dispersed, and the wind pressure directly impacts the clamp, which can easily aggravate the galloping amplitude and reduce the stability of the line operation. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides the following technical solution: an anti-galloping suspension clamp for overhead lines, comprising a suspension arm and a support plate disposed on the top of the suspension arm. A connector for connecting to an insulating terminal on an external tower is fixedly connected to the top of the support plate. A telescopic groove is formed at the bottom of the inner wall of the suspension arm, and a secondary clamping assembly is slidably connected to the inner wall of the telescopic groove. A wire-fixing hook seat is fixedly connected to the bottom of the suspension arm. An anti-galloping device for balancing the inertia of conductor galloping is fixedly connected to the bottom of the wire-fixing hook seat via a bracket. The rotating hooks on both sides have guide grooves on both sides of their inner walls. A primary wire clamping assembly is slidably connected to the inner wall of each guide groove. Connecting arms are fixedly connected to both sets of rotating hooks. The anti-galling device includes a composite damping plate fixedly connected to the bottom of the wire hook base via a bracket. A connecting seat is fixedly connected to the bottom of the composite damping plate, and an annular guide groove is provided on the connecting seat. A double-cone spindle shell is disposed at the bottom of the connecting seat. The double-cone spindle shell has two tapered conical end faces, and the top of the double-cone spindle shell is fixedly connected to the connecting seat. The double-cone spindle housing has evenly distributed arc-shaped guide grooves on its two conical surfaces. A rotating shaft passes through the bottom of the double-cone spindle housing and is rotatably connected to it. A rotating sleeve is fixedly connected to the bottom of the rotating shaft. L-shaped guide vanes are evenly fixedly connected to the side of the rotating sleeve. The end of the L-shaped guide vane away from the rotating sleeve is slidably connected to the inner wall of the annular guide groove via a slider. L-shaped diversion grooves are evenly distributed on the L-shaped guide vane. A counterweight assembly is evenly fixedly connected to the portion of the rotating shaft located inside the double-cone spindle housing, and is secured by a connector. Fixed to the insulated terminal of the pole, the overhead conductor is double-clamped and fixed using primary and secondary clamping assemblies. When external airflow acts on the conductor and causes line galloping, the airflow impacts the double-cone spindle housing. The gradually tapering cones on the upper and lower parts of the housing shear and divert the airflow. At the same time, the arc-shaped guide grooves distributed on the cones further disperse the turbulent airflow, effectively weakening the horizontal airflow impact, reducing the disturbance caused by turbulence, stabilizing the stress state of the equipment, reducing the horizontal galloping amplitude of the conductor from the source, and significantly improving the overall anti-galloping performance of the suspension clamp.

[0006] Preferably, the counterweight assembly includes a counterweight housing, with buffer elastic pads fixedly connected to the top and bottom of the inner wall of the counterweight housing, graphite bushings symmetrically slidably connected to the inner wall of the counterweight housing, and counterweight blocks connected to the graphite bushings. Two sets of counterweight blocks are provided, each fixedly connected to the graphite bushing. An anti-wear connecting pad is fixedly connected to the bottom of the counterweight block, and a buffer spring is disposed between the two sets of anti-wear connecting pads. An elastic telescopic rod is fixedly connected to the portion of the buffer spring between the two sets of anti-wear connecting pads.

[0007] Preferably, the counterweight sleeve is provided with multiple sets evenly distributed on the rotating shaft inside the double-cone spindle shell. The two sides of the counterweight sleeve are fixedly connected to the rotating shaft by brackets. After the airflow is diverted by the double-cone spindle shell, it acts on the L-shaped guide vane again. The L-shaped diversion groove relieves the force for the second time and drives the guide vane to rotate, causing the counterweight assembly to rotate as a whole to form a gyro effect, which balances and counteracts the horizontal dancing inertia of the conductor. When uneven airflow causes vertical shaking of the equipment, the counterweight block slides smoothly along the graphite bushing, and the compression buffer spring and elastic telescopic rod counteract the vertical inertial force, realizing multi-dimensional buffering and anti-shaking. At the same time, the supporting protective structure reduces component jamming, wear and noise, and ensures the long-term stable anti-dancing effect of the equipment.

[0008] Preferably, the primary wire clamping assembly includes a semi-circular wire clamping frame, two sets of which are fixedly connected by bolts. A flexible clamping pad is fixedly connected to the inner wall of the semi-circular wire clamping frame. The movable end of an elastic telescopic rod II is fixedly connected to one side of the semi-circular wire clamping frame. A guide slider is fixedly connected to the fixed end of the elastic telescopic rod II. Anti-slip adaptation springs are fixedly connected to both sides of the guide slider.

[0009] Preferably, the two sets of semi-circular wire clamps are adjusted by bolts to clamp the line initially. Both sides of the guide slider are slidably connected to the inner wall of the guide groove. The end of the anti-slip spring away from the guide slider is fixedly connected to the inner wall of the guide groove. After suspension, the two sets of semi-circular wire clamps, together with the flexible clamping pads, perform initial clamping and fixing of the conductor. The elastic telescopic rod can provide adaptive buffer margin for the clamping structure, weakening the mechanical stress transmitted by wind impact. When the conductor moves laterally due to wind force, the guide slider, together with the anti-slip spring, slides and buffers, relying on the spring force to offset the inertia of the movement and automatically reset, effectively limiting the conductor deviation, avoiding uneven clamping force, and suppressing the increased movement and galloping of the line.

[0010] Preferably, the secondary clamping assembly includes a telescopic column, a secondary clamping seat is fixedly connected to the bottom of the telescopic column, a limit socket is provided on the telescopic column, a pull rod is fixedly connected to the top of the telescopic column, and a return spring is fixedly connected to the portion of the top of the telescopic column located on both sides of the pull rod.

[0011] Preferably, both sides of the telescopic column are slidably connected to the inner wall of the telescopic groove, the top of the reset spring is fixedly connected to the top of the inner wall of the telescopic groove, and the top of the pull rod passes through the top of the inner wall of the telescopic groove and is slidably connected to the suspension arm.

[0012] Preferably, a limiting insert is fixedly connected to one side of the connecting arm, and a fixing plate is fixedly connected to the side of the connecting arm away from the limiting insert.

[0013] Preferably, the suspension arm has slots and limiting grooves on both sides, and the slots, limiting grooves, and telescopic sliding grooves are connected and interconnected. A limiting insert plate is slidably connected to the inner wall of the slot, and both sides of the limiting insert plate are slidably connected to the inner wall of the limiting insert cylinder. One end of the limiting insert plate sequentially passes through a limiting insertion port, a limiting groove, and a limiting insert cylinder, and after passing through the connecting arm, it is fixedly connected to the fixing plate by bolts. After the first clamping is completed, the pulling rod drives the telescopic column and the secondary clamping seat to move aside, and the locking hook completes the alignment and limiting of the conductor. After the pulling rod is released, the return spring drives the secondary clamping seat to press down, forming a secondary clamping of the conductor, achieving double clamping. The limiting insert plate is then inserted and positioned, and the bolts lock it in place, completely fixing the clamping structure and simplifying the installation process. The double clamping structure can prevent conductor loosening and movement, enhance the overall structural stability, and effectively suppress overhead line galloping.

[0014] The beneficial effects of the technical solution provided by this invention include:

[0015] 1. This anti-galling suspension clamp for overhead lines, after the clamp is fully suspended and installed and double-clamped to fix the conductor, relies on the upper and lower tapered cones of the double-cone spindle shell to shear and guide the windward airflow. In addition, the evenly distributed arc-shaped guide grooves on the cone surface further disperse the turbulent airflow, weaken the horizontal wind pressure impact, effectively eliminate the disturbance caused by airflow turbulence, reduce the horizontal swing amplitude of the conductor from the source of wind disturbance, achieve the effect of efficient diversion and wind resistance, improve the overall horizontal anti-galling performance of the suspension clamp, and ensure the stability of the daily operation of the overhead line.

[0016] 2. This anti-galling suspension clamp for overhead lines is equipped with a counterweight assembly, which can achieve a comprehensive and multi-dimensional anti-galling buffering effect. After the airflow is diverted by the shell, it impacts the L-shaped guide vane and is further reduced and diverted by the L-shaped diversion groove. At the same time, the guide vane drives the counterweight assembly to rotate, using the gyro effect to balance and counteract the horizontal galloping inertia of the conductor. For the vertical shaking caused by uneven airflow, the counterweight can slide adaptively. Together with the buffer spring and elastic telescopic rod, it counteracts the vertical inertial force, suppressing line galloping in both directions. The graphite bushing ensures smooth sliding, and the anti-wear pad and buffer elastic pad reduce component wear and impact noise, further improving the overall anti-galling performance of the clamp and extending the service life of the device.

[0017] 3. This anti-galloping suspension clamp for overhead lines is equipped with a primary clamping assembly and adopts a flexible adaptive clamping structure. The semi-circular clamping frame, together with the flexible clamping pad, clamps the conductor, ensuring a uniform and stable fit. Relying on the elastic telescopic rod with reserved adjustment buffer space, it can effectively buffer the impact load of wind and reduce the transmission of external force to the clamp body. When the conductor is subjected to lateral movement due to wind force, the guide slider, together with the anti-galloping adaptive spring, adaptively slides and resets, offsetting the inertia of the movement and limiting the displacement amplitude, thus preventing the conductor movement from aggravating the galloping phenomenon. The clamping structure enhances the buffering capacity and comprehensively improves the clamping stability and the anti-galloping effect of the line.

[0018] 4. This anti-galloping suspension clamp for overhead lines is equipped with a secondary clamping assembly, employing a spring-return double-clamping and through-locking structure. During operation, the conductor is clamped twice by the pull rod avoiding the conductor and the spring automatically returning to its original position. Combined with the through-locking positioning of the limit plate, the overall clamping structure is firmly locked. Installation is simple and quick, simplifying the installation steps and further improving installation efficiency. The primary and secondary double clamping further reduces conductor loosening, offsetting, and shifting, reducing the causes of line galloping at the root. With the synergistic effect of horizontal and vertical anti-galloping, the stability of the overall clamp structure is greatly improved, comprehensively strengthening the anti-galloping capability of overhead lines. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the anti-galling suspension clamp structure for overhead lines according to the present invention;

[0020] Figure 2 This is a schematic diagram of the bottom structure of the anti-galling suspension clamp for overhead lines according to the present invention;

[0021] Figure 3 This is a schematic diagram of the anti-galling device structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the internal connection structure of the double-cone spindle housing of the present invention;

[0023] Figure 5 This is a schematic diagram of the internal connection structure of the counterweight component of the present invention;

[0024] Figure 6 This is a schematic diagram of the connection structure of the primary wire clamping assembly of the present invention;

[0025] Figure 7 This is a schematic diagram of the primary wire clamping assembly structure of the present invention;

[0026] Figure 8 This is a schematic diagram of the connection structure of the secondary clamping wire assembly of the present invention.

[0027] In the diagram: 1. Suspension arm; 2. Support plate; 3. Connector; 4. Telescopic slide rail; 5. Secondary wire clamping assembly; 6. Wire fixing hook seat; 7. Anti-galling device; 8. Rotating hook; 9. Primary wire clamping assembly; 10. Guide slide rail; 11. Connecting arm; 12. Limiting insert; 13. Fixing plate; 14. Slot; 15. Limiting groove; 16. Limiting insert; 71. Composite damping plate; 72. Connecting seat; 73. Annular guide groove; 74. Double-cone spindle housing; 75. Arc-shaped guide groove; 76. Rotating shaft; 77. Rotating sleeve; 7 8. L-shaped guide vane; 79. Counterweight assembly; 710. L-shaped diversion channel; 791. Counterweight housing; 792. Buffer elastic pad; 793. Graphite bushing; 794. Counterweight block; 795. Anti-wear connecting pad; 796. Buffer spring; 797. Elastic telescopic rod one; 91. Semi-circular wire clamp frame; 92. Flexible clamp pad; 93. Elastic telescopic rod two; 94. Guide slider; 95. Anti-slip adaptation spring; 51. Telescopic column; 52. Secondary clamping seat; 53. Limiting socket; 54. Pull rod; 55. Return spring. Detailed Implementation

[0028] For the first embodiment, please refer to... Figures 1-3 This invention provides an anti-galloping suspension clamp for overhead lines. By incorporating an anti-galloping device 7, before clamping the line, the connector 3 is first fixedly connected to the insulating terminal on the external tower to complete the overall suspension installation of the device. Then, the conductor is double-clamped and fixed by the primary clamping assembly 9 and the secondary clamping assembly 5. When the line gallops due to airflow, the generated airflow will impact the double-cone spindle housing 74. The upper and lower tapered conical surfaces of the double-cone spindle housing 74 can shear, guide, and divert the airflow. At the same time, the arc-shaped guide grooves 75 evenly opened on the two conical surfaces of the double-cone spindle housing 74 can further disperse and guide the airflow, further reducing the turbulence interference caused by the airflow impact and reducing the horizontal impact on the entire device. This reduces the amplitude of conductor galloping in the horizontal direction and further improves the overall anti-galloping capability of the suspension clamp.

[0029] For the second embodiment, please refer to... Figures 1-5By incorporating a counterweight assembly 79, when the line is impacted by airflow, the airflow, after being diverted by the double-cone spindle housing 74 and the arc-shaped guide groove 75, will impact the L-shaped guide vane 78. The airflow will then be further diverted by the L-shaped diversion groove 710 on the L-shaped guide vane 78, reducing the impact of the airflow. Simultaneously, the airflow will drive the L-shaped guide vane 78 to rotate. The rotation of the L-shaped guide vane 78, in conjunction with the slider and the annular guide groove 73, will cause the rotating shaft 76 to rotate as a whole. The rotating shaft 76 will then drive the counterweight assembly 79 to rotate, generating a gyroscopic effect to stabilize the entire device, thereby balancing and offsetting the horizontal inertia of the conductor's movement. When the airflow impact is uneven and the rotating shaft 76 produces irregular vertical vibrations, the counterweight block 794, subjected to the inertia generated by the vibrations, will move along the graphite bushing 793 relative to the counterweight housing 791 towards the vibrating direction. The sliding compression of the buffer spring 796 and the elastic telescopic rod 797 provides a counteracting buffer against the inertial force, further reducing the vertical swing amplitude. The combination of horizontal gyroscopic effect stabilization and vertical inertial buffering effectively balances and buffers multi-directional swing, further enhancing the anti-swing effect. Simultaneously, the graphite bushing 793 ensures smooth sliding between the graphite bushing 793 and the counterweight 794, reducing the probability of jamming. The anti-wear connecting pad 795 prevents direct wear of the counterweight 794 by the buffer spring 796. The buffer elastic pad 792 cushions the force of the counterweight 794 impacting the counterweight housing 791 after sliding, reducing noise and component wear, extending service life, and ensuring the stability of the anti-swing capability.

[0030] Third embodiment, please refer to Figures 1-7By setting up a primary clamping assembly 9, before clamping the line, the main body of the device is first fixed to the insulated terminal by the connector 3. Then, the two sets of rotating hooks 8 are opened, and the wire is placed between the two sets of semi-circular clamping frames 91 on the fixed hook base 6. The bolts are tightened to shorten the distance between the two sets of semi-circular clamping frames 91. The line is clamped and fixed by the action of the flexible clamping pad 92. The setting of the elastic telescopic rod 93 can ensure that the two sets of semi-circular clamping frames 91 have room for movement and buffering when adjusting. It can also buffer the wind impact on the line during the use of the clamp. The reduced impact force is directly transmitted to the overall structure of the suspension clamp, further improving the clamp's overall anti-galling capability. When the line moves laterally due to wind impact, the guide slider 94 can slide along the guide groove 10, pressing the anti-galling adaptation spring 95 on the corresponding side. The elastic force of the anti-galling adaptation spring 95 can counteract the inertial force of the galling, controlling the galling amplitude within a reasonable range. At the same time, it can also be reset by elastic force to achieve automatic adaptation, avoiding uneven clamping force caused by line displacement after galling, improving clamping stability, preventing conductor galling from aggravating the galling amplitude, and further enhancing the anti-galling capability.

[0031] For the fourth embodiment, please refer to [link / reference]. Figures 1-8 By setting up a secondary clamping assembly 5, after the first clamping is completed, pulling the lever 54 upwards causes the telescopic column 51 to slide upwards along the telescopic groove 4, compressing the return spring 55, so that the secondary clamping seat 52 moves into the telescopic groove 4, providing clearance space for the line to enter the fixed hook seat 6. Then, the connecting arm 11 is rotated to rotate and engage the rotating hook 8, so that the limiting insert 12 on the rotating hook 8 is aligned with the slot 14 on the suspension arm 1. At the same time, the line clamped once enters the fixed hook seat 6. Then, the lever 54 is released, and the return spring 55 pushes the telescopic column 51 downwards. The downward movement of the telescopic column 51 causes the secondary clamping seat 52 to move downwards to clamp the wire that has been clamped once. The secondary clamping achieves double clamping and fixation, improving the stability of wire clamping. At the same time, the telescopic column 51 moves down to align the slot 14, the limiting socket 53, and the limiting groove 15. At this time, the limiting plate 16 is inserted from the slot 14, passing through the limiting socket 53, the limiting groove 15, and the limiting sleeve 12 in sequence, and finally through the connecting arm 11. It is then tightened and fixed to the fixing plate 13 on the other side by bolts. This completes the locking of the rotating hook 8 used for secondary fixation and the position fixation of the telescopic column 51, simplifying the installation steps and improving installation efficiency. At the same time, the double clamping can prevent the wire from loosening and moving, further suppressing the occurrence of wire galloping, and improving the overall stability and anti-galloping capability of the device.

[0032] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A suspension clamp for preventing galloping of overhead lines, characterized in that: include: The suspension arm (1) and the support plate (2) set on the top of the suspension arm (1) are fixedly connected to the top of the support plate (2) for connecting the insulating terminal on the external tower. The bottom of the inner wall of the suspension arm (1) is provided with a telescopic groove (4), and a secondary wire clamping assembly (5) is slidably connected to the inner wall of the telescopic groove (4). A wire hook seat (6) is fixedly connected to the bottom of the suspension arm (1). The bottom of the wire hook seat (6) is fixedly connected to an anti-galloping device (7) for balancing the inertia of the wire galloping. Rotary hook (8), the rotating hook (8) is provided with two sets and symmetrically rotated and connected to the two sides of the fixed hook seat (6). The inner walls of the rotating hook (8) are provided with guide grooves (10) on both sides. The inner walls of the guide grooves (10) are slidably connected with a primary wire clamping assembly (9). The two sets of rotating hooks (8) are fixedly connected with connecting arms (11). The anti-galloping device (7) includes: A composite damping plate (71) is fixedly connected to the bottom of the bracket and the fixed hook seat (6). A connecting seat (72) is fixedly connected to the bottom of the composite damping plate (71). An annular guide groove (73) is provided on the connecting seat (72). The double-cone spindle housing (74) has two tapered conical end faces, the top of the double-cone spindle housing (74) is fixedly connected to the connecting seat (72), and arc-shaped guide grooves (75) are evenly opened on the two conical surfaces of the double-cone spindle housing (74). A rotating shaft (76) passes through the bottom of the double-cone spindle housing (74) and is rotatably connected to the double-cone spindle housing (74). A rotating sleeve (77) is fixedly connected to the bottom of the rotating shaft (76). L-shaped guide vanes (78) are evenly fixedly connected to the side of the rotating sleeve (77). The end of the L-shaped guide vane (78) away from the rotating sleeve (77) is slidably connected to the inner wall of the annular guide groove (73) through a slider. L-shaped diversion grooves (710) are evenly opened on the L-shaped guide vane (78). A counterweight assembly (79) is evenly fixedly connected to the part of the rotating shaft (76) located inside the double-cone spindle housing (74).

2. The anti-galling suspension clamp for overhead lines according to claim 1, characterized in that: The counterweight assembly (79) includes: The counterweight housing (791) has a buffer elastic pad (792) fixedly connected to the top and bottom of the inner wall of the counterweight housing (791), and a graphite bushing (793) symmetrically slidably connected to the inner wall of the counterweight housing (791). The counterweight (794) is provided in two sets and is fixedly connected to the graphite bushing (793). The bottom of the counterweight (794) is fixedly connected to the anti-wear connecting pad (795). A buffer spring (796) is provided between the two sets of anti-wear connecting pads (795), and an elastic telescopic rod (797) is fixedly connected to the part located inside the buffer spring (796) between the two sets of anti-wear connecting pads (795).

3. The anti-galling suspension clamp for overhead lines according to claim 2, characterized in that: The counterweight sleeve (791) is provided with multiple sets and evenly distributed on the rotating shaft (76) in the part located inside the double cone spindle shell (74). The two sides of the counterweight sleeve (791) are fixedly connected to the rotating shaft (76) by brackets.

4. The anti-galling suspension clamp for overhead lines according to claim 1, characterized in that: The primary wire clamping assembly (9) includes a semi-circular wire clamping frame (91), which has two sets and is fixedly connected by bolts. A flexible clamping pad (92) is fixedly connected to the inner wall of the semi-circular wire clamping frame (91). The movable end of an elastic telescopic rod (93) is fixedly connected to one side of the semi-circular wire clamping frame (91). A guide slider (94) is fixedly connected to the fixed end of the elastic telescopic rod (93). Anti-slip adaptation springs (95) are fixedly connected to both sides of the guide slider (94).

5. The anti-galling suspension clamp for overhead lines according to claim 4, characterized in that: The two sets of semi-circular wire clamps (91) are clamped once by adjusting the spacing of the bolts. Both sides of the guide slider (94) are slidably connected to the inner wall of the guide groove (10). The end of the anti-slip adaptation spring (95) away from the guide slider (94) is fixedly connected to the inner wall of the guide groove (10).

6. The anti-galling suspension clamp for overhead lines according to claim 1, characterized in that: The secondary clamping assembly (5) includes a telescopic column (51), a secondary clamping seat (52) is fixedly connected to the bottom of the telescopic column (51), a limit socket (53) is opened on the telescopic column (51), a pull rod (54) is fixedly connected to the top of the telescopic column (51), and a return spring (55) is fixedly connected to the top of the telescopic column (51) on both sides of the pull rod (54).

7. The anti-galling suspension clamp for overhead lines according to claim 6, characterized in that: Both sides of the telescopic column (51) are slidably connected to the inner wall of the telescopic slide (4), the top of the reset spring (55) is fixedly connected to the top of the inner wall of the telescopic slide (4), and the top of the pull rod (54) passes through the top of the inner wall of the telescopic slide (4) and is slidably connected to the suspension arm (1).

8. The anti-galling suspension clamp for overhead lines according to claim 6, characterized in that: A limiting insert (12) is fixedly connected to one side of the connecting arm (11), and a fixing plate (13) is fixedly connected to the side of the connecting arm (11) away from the limiting insert (12).

9. The anti-galling suspension clamp for overhead lines according to claim 8, characterized in that: The suspension arm (1) has slots (14) and limiting slots (15) on both sides respectively. The slots (14), limiting slots (15) and telescopic slides (4) are connected and pass through each other. The inner wall of the slot (14) is slidably connected to a limiting insert plate (16). Both sides of the limiting insert plate (16) are slidably connected to the inner wall of the limiting insert cylinder (12). One end of the limiting insert plate (16) is sequentially provided with a limiting insert (53), a limiting slot (15) and a limiting insert cylinder (12). After passing through the connecting arm (11), it is fixedly connected to the fixing plate (13) by bolts.

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