Anti-windage yaw power transmission support and power transmission tower
By designing a wind-resistant transmission support bracket, the synergistic effect of the mounting rod, support base, and buffer components is utilized to achieve multi-directional displacement adjustment and graded buffering of the cable, solving the problem of wind-resistant transmission support brackets in windy weather and improving the stability and safety of transmission lines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- STATE GRID HEBEI ELECTRIC POWER CO LTD
- Filing Date
- 2026-01-13
- Publication Date
- 2026-04-14
AI Technical Summary
The existing rigid connection between the transmission support and the cable results in weak wind resistance, and the cable is easily damaged in strong winds because it cannot buffer the impact of the wind.
The wind-resistant power transmission support design includes mounting poles, support bases, cable clamps, and buffer components. Through the radial buffering of the cable clamps and the axial sliding of the support base, the buffer components buffer the wind force in stages, limiting cable displacement and reducing stress concentration.
It effectively suppresses excessive swaying of cables in strong wind environments, reduces stress damage to supports and cables, and improves the operational stability and safety of transmission lines.
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Figure CN121863282A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of power transmission support technology, and more specifically, relates to a wind-resistant power transmission support and power transmission tower. Background Technology
[0002] Transmission towers are core infrastructure in power systems used to support transmission lines. Their main function is to elevate transmission cables to a predetermined height to prevent contact between the cables and ground objects, reduce electromagnetic interference, and ensure the safe and stable operation of transmission lines in various geographical environments. Transmission supports, as key components of the towers, are installed on the crossarms or tower structure to fix and support the transmission cables, maintain safe spacing and arrangement between cables, and are crucial for achieving long-distance, low-loss power transmission from generation to consumption.
[0003] In existing technologies, power transmission supports typically employ rigid fixing methods for cable installation. Specifically, the support body is usually equipped with fixing hardware. During installation, the cable is placed in the pre-set installation position on the support, and bolts or clamps are tightened to create a rigid connection between the cable and the support. In some scenarios, insulator strings are also used to achieve electrical insulation, but the mechanical connection between the cable and the support remains primarily rigid, meaning the cable's position on the support is completely fixed, preventing any relative displacement in the lateral or longitudinal direction.
[0004] Under extreme weather conditions such as strong winds and typhoons, power transmission cables are subjected to strong lateral wind forces and experience violent swaying. Because the cable and support structure are rigidly connected, the impact and tensile forces generated during this swaying cannot be buffered or released by the support structure; instead, they are directly concentrated at the connection point. Under long-term or instantaneous strong wind loads, cables are prone to insulation wear and conductor fatigue fracture due to repeated bending and compression. In severe cases, this can even lead to deformation of support hardware and loosening of bolts, resulting in cable detachment or damage to the tower structure, posing a serious threat to the safe and stable operation of transmission lines. Summary of the Invention
[0005] The purpose of this application is to provide a wind-resistant power transmission support and power transmission tower to solve the problem that the rigid connection between the existing power transmission support and the cable results in weak wind resistance and the cable is easily damaged in strong winds because it cannot buffer the impact of the wind.
[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: A wind-resistant power transmission support bracket is provided, comprising: Mounting rods are used for horizontally fixing installations on poles and towers; A support base is slidably connected to the mounting rod along the axial direction of the mounting rod; Two cable clamps are respectively disposed on both sides of the support base along the vertical direction, both used to fix the cable; both cable clamps are connected to the support base via connecting members, allowing the cable clamps to move toward or away from the support base; and The buffer assembly includes a first buffer member and a second buffer member. The first buffer member is disposed between the support base and the mounting rod to buffer the force exerted when the support base moves. The second buffer member is disposed between the wire clamp and the support base to buffer the force exerted when the wire clamp moves.
[0007] In one possible implementation, the connecting member includes: Two movable seats are slidably connected to the support seat along the cable laying direction; and Two sets of connecting rods are respectively arranged on both sides of the support base in the vertical direction, and each set of connecting rods is located between the wire clamp and the support base on the same side; each set of connecting rods includes two connecting rods corresponding to the two movable seats respectively, and the two ends of each connecting rod are respectively hinged to the movable seat and the wire clamp; When the cable causes the clamp to sway up and down, the clamp is adapted to drive the movable seat to move toward or away from the support seat via the connecting rod; The second buffer member is connected to the movable seat to buffer the force generated when the movable seat moves.
[0008] In one possible implementation, the second buffer component includes: Two first springs are respectively arranged on both sides of the movable base along the cable laying direction, and the two ends of each first spring are respectively connected to the movable base and the support base; When the movable seat moves toward or away from the support seat, both first springs are adapted to drive the movable seat to move in the opposite direction to buffer the force generated when the movable seat moves.
[0009] In one possible implementation, the connecting member further includes: A guide tube is fixedly mounted on the support base, and the axial direction of the guide tube is parallel to the vertical direction; and The guide rod is slidably connected coaxially inside the guide tube, and the upper end of the guide rod is fixedly connected to the wire clamp.
[0010] In one possible implementation, a displacement sensor is provided between the guide tube and the guide rod. The displacement sensor is used to measure the distance the cable clamp moves toward the support base, so as to indirectly measure the wind deflection value of the cable.
[0011] In one possible implementation, the first buffer component includes: An alignment tube, coaxially sleeved outside the mounting rod, has an interior for the support seat to pass through, and its inner wall is slidably connected to the outer wall of the support seat; and A second spring is sleeved on the mounting rod, and both ends of the second spring are connected to the alignment tube and the support base, respectively. When the cable drives the clamp to sway horizontally, the support base is adapted to move toward or away from the tower, and the second spring is adapted to buffer the force when the support base moves.
[0012] In one possible implementation, an anti-rotation member is further provided between the support base and the alignment tube to restrict the rotation of the support base relative to the alignment tube.
[0013] In one possible implementation, the anti-rotation component includes: A sliding rod is disposed on the support base, and the axial direction of the sliding rod is perpendicular to the axial direction of the alignment tube; and A sliding groove is formed on the outer wall of the alignment tube. The length direction of the sliding groove is parallel to the axial direction of the alignment tube, and the sliding rod is slidably connected to the sliding groove.
[0014] In one possible implementation, the cable clamp has a vibration damper on the side facing away from the support base. The vibration damper includes a connecting rod and a hammer head. When the cable experiences minor swaying, the hammer head is adapted to sway synchronously to counteract the minor vibration of the cable.
[0015] In this embodiment, the mounting rod is fixed horizontally at a predetermined position on the tower, serving as the foundational load-bearing structure of the entire support system. This ensures a secure connection between the rod and the tower, providing a stable support platform. A support base is fitted onto the mounting rod, allowing it to slide axially along the rod. A first buffer component is pre-installed between the support base and the mounting rod, initially under compression or tension, restricting the support base's free sliding in the absence of external force. Two wire clamps are installed on the upper and lower sides of the support base, connected to it via a connecting component, ensuring the clamps can move towards or away from the support base. Simultaneously, a second buffer component is pre-installed between each clamp and the support base, initially in equilibrium. Finally, the cable to be fixed is clamped within the two clamps, completing the overall assembly.
[0016] When external wind forces act on the cable, the support bracket achieves wind deflection prevention through a multi-level response mechanism involving radial buffering of the clamps, axial buffering of the support base, and coordinated reset. The specific process is as follows: Line clamp force and radial buffer: Wind force (especially crosswinds or diagonal winds) can exert horizontal or vertical thrust on the cable, causing the cable clamp to move away from the support. As the clamp moves, the connecting member compresses or stretches the second buffer member. The second buffer member uses its own elasticity or damping characteristics to buffer the instantaneous impact force of the clamp's movement, avoiding stress concentration caused by rigid collision between the clamp and the cable, while also limiting the maximum range of movement of the clamp.
[0017] Support bearing stress and axial buffering: If the wind force is strong (such as strong winds or gusts), the movement of the clamp will further drive the support to slide along the axial direction of the mounting rod. During the sliding process of the support, the first buffer component between it and the mounting rod is compressed or stretched, buffering the impact force of the support sliding along the mounting rod. At the same time, the elastic restoring force limits the sliding distance of the support, preventing the support from rigidly colliding with the end of the mounting rod or other fixed structures.
[0018] Wind force weakening and returning to normal: When the wind weakens or disappears, the elastic potential energy of the first and second buffer components is released, which respectively drives the support base to slide along the axial direction of the mounting rod to the initial position, and the cable clamp to move radially to the initial clamping position, so that the cable can finally return to the stable state when there is no wind or a light breeze, completing the entire wind deflection prevention cycle.
[0019] The wind-resistant transmission support provided in this application embodiment, compared with the prior art, achieves graded buffering and multi-directional displacement adjustment of cable wind deflection force through the coordinated design of mounting rod fixing, axial sliding of support seat, radial movement of wire clamp, and dual buffer components. It can effectively suppress excessive cable swaying under wind force and reduce stress damage to the support and cable, significantly improving the operational stability and safety of transmission lines in strong wind environments. It is an efficient and reliable wind-resistant solution.
[0020] The technical solution adopted in this application also provides a power transmission tower, including the wind-resistant power transmission support proposed in any of the foregoing.
[0021] The beneficial effects of the transmission tower provided in this embodiment are the same as those of the aforementioned wind-resistant transmission support, and will not be repeated here. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1A three-dimensional structural schematic diagram of the wind-resistant power transmission support provided in an embodiment of the present invention; Figure 2 This is a front view schematic diagram of the wind-resistant power transmission support provided in an embodiment of the present invention; Figure 3 This is a side view of the wind-resistant power transmission support structure provided in an embodiment of the present invention; Figure 4 For along Figure 2 Schematic diagram of the cross-sectional structure of line AA in the middle; Figure 5 For along Figure 2 Schematic diagram of the cross-sectional structure of the middle BB line; Figure 6 For along Figure 3 Schematic diagram of the cross-sectional structure of the middle CC line; The following are the labeling elements in the figure: 1. Mounting rod; 2. Support base; 3. Cable clamp; 4. Connecting component; 41. Moving base; 42. Connecting rod; 43. Guide tube; 44. Guide rod; 45. Displacement sensor; 5. First buffer component; 51. Alignment tube; 52. Second spring; 6. First spring; 7. Anti-rotation component; 71. Sliding rod; 72. Slide groove; 8. Vibration damper; 81. Connecting rod; 82. Hammer head; 9. Pole tower; 91. Cable. Detailed Implementation
[0024] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
[0025] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0026] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing 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 present invention.
[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.
[0028] Please refer to the following: Figures 1 to 6 The wind-resistant power transmission support and transmission tower provided in this application are described below. The wind-resistant power transmission support includes a mounting rod 1, a support base 2, two line clamps 3, and a buffer assembly.
[0029] Mounting rod 1 is used to fix it horizontally on tower 9, and support base 2 is slidably connected to mounting rod 1 along the axial direction of mounting rod 1. The sliding connection between support base 2 and mounting rod 1 allows support base 2 to move with the horizontal sway of cable 91, avoiding stress concentration caused by rigid fixing.
[0030] Two clamps 3 are respectively installed on both sides of the support base 2 in the vertical direction, both used to fix the cable 91; both clamps 3 are connected to the support base 2 through the connecting member 4, so that the clamps 3 can move toward or away from the support base 2. The connection between the clamps 3 and the support base 2 through the connecting member 4 allows the clamps 3 to move with the up and down sway of the cable 91, dispersing the wind load in the vertical direction.
[0031] The buffer assembly includes a first buffer member 5 and a second buffer member. The first buffer member 5 is disposed between the support base 2 and the mounting rod 1 to buffer the force exerted when the support base 2 moves. The second buffer member is disposed between the clamp 3 and the support base 2 to buffer the force exerted when the clamp 3 moves. The buffer assembly absorbs the kinetic energy generated by wind deflection through elastic or damping structures (such as springs, hydraulic components, etc.), reducing the vibration amplitude of the cable 91 and the support.
[0032] The first buffer component 5 and the second buffer component can be replaced with hydraulic buffers, dampers or gas springs, which are suitable for extreme environments such as strong winds and high vibrations; depending on the number of cables 91, the number of clamps 3 can be increased, and multiple sets of connecting components 4 and buffer components can be set accordingly.
[0033] In this embodiment, the mounting rod 1 is fixed horizontally at a predetermined position on the tower 9, serving as the basic load-bearing structure of the entire support, ensuring a firm connection with the tower 9 and providing a stable support platform. The support base 2 is fitted onto the mounting rod 1, allowing it to slide axially along the mounting rod 1. A first buffer component 5 is pre-installed between the support base 2 and the mounting rod 1, in which case the first buffer component 5 is in an initial compressed or stretched state, restricting the free sliding of the support base 2 without external force. Two wire clamps 3 are installed on the upper and lower sides of the support base 2, respectively, and connected to the support base 2 via connecting components 4, ensuring that the wire clamps 3 can move towards or away from the support base 2. Simultaneously, a second buffer component is pre-installed between each wire clamp 3 and the support base 2, in which case the second buffer component is in an initial balanced state. Finally, the cable 91 to be fixed is clamped within the two wire clamps 3, completing the overall assembly.
[0034] When external wind force acts on cable 91, the bracket achieves wind deflection prevention through a multi-level response mechanism of radial buffering by clamp 3, axial buffering by support base 2, and coordinated reset. The specific process is as follows: Force and radial buffering of clamp 3: Wind force (especially crosswinds or diagonal winds) will exert a horizontal or vertical thrust on cable 91, causing cable 91 to move clamp 3 away from support 2. When clamp 3 moves, the connecting member 4 compresses or stretches the second buffer member. The second buffer member uses its own elasticity or damping characteristics to buffer the instantaneous impact force of clamp 3's movement, avoiding stress concentration caused by rigid collision between clamp 3 and cable 91, while limiting the maximum range of movement of clamp 3.
[0035] Force and axial buffering of support seat 2: If the wind force is strong (such as strong winds or gusts), the movement of the clamp 3 will further drive the support 2 to slide along the axial direction of the mounting rod 1. During the sliding process of the support 2, the first buffer member 5 between it and the mounting rod 1 is compressed or stretched, buffering the impact force of the support 2 sliding along the mounting rod 1. At the same time, the elastic restoring force limits the sliding distance of the support 2, preventing the support 2 from rigidly colliding with the end of the mounting rod 1 or other fixed structures.
[0036] Wind force weakening and returning to normal: When the wind weakens or disappears, the elastic potential energy of the first buffer component 5 and the second buffer component is released, which respectively drives the support base 2 to slide along the axial direction of the mounting rod 1 to the initial position, and the wire clamp 3 to move radially to the initial clamping position, so that the cable 91 can finally return to the stable state when there is no wind or a light breeze, completing the entire wind deflection prevention cycle.
[0037] The wind-resistant transmission support provided in this application embodiment, compared with the prior art, achieves graded buffering and multi-directional displacement adjustment of the wind deflection force on the cable 91 through the coordinated design of the mounting rod 1 fixing, the support seat 2 sliding axially, the wire clamp 3 moving radially, and the dual buffer components. It can effectively suppress the excessive swaying of the cable 91 under the action of wind force, and reduce the stress damage to the support and the cable 91, significantly improving the operational stability and safety of the transmission line in strong wind environment. It is an efficient and reliable wind-resistant solution.
[0038] Further, please refer to Figures 1 to 6 As a specific embodiment of the wind-resistant power transmission support provided by the present invention, the connecting component 4 includes two movable seats 41 and two sets of connecting rods 42.
[0039] Both movable seats 41 are slidably connected to the support seat 2 along the laying direction of the cable 91.
[0040] Two sets of connecting rods 42 are respectively arranged on both sides of the support base 2 in the vertical direction, and each set of connecting rods 42 is located between the wire clamp 3 and the support base 2 on the same side; each set of connecting rods 42 includes two connecting rods 42 corresponding to the two movable seats 41 respectively, and the two ends of each connecting rod 42 are hinged to the movable seat 41 and the wire clamp 3 respectively.
[0041] When cable 91 sways up and down due to wind force, clamp 3 drives connecting rod 42 to rotate, and connecting rod 42 pushes movable seat 41 to move along support seat 2 toward or away from the center of support seat 2. When movable seat 41 moves, the second buffer member is adapted to absorb the force generated by the movement, reducing the swaying amplitude of clamp 3 and cable 91.
[0042] The vertical sway of the clamp 3 is converted into the horizontal movement of the movable seat 41 by the linkage 42 mechanism, thereby realizing the conversion and dispersion of force direction: the vertical displacement of the clamp 3 is transmitted to the movable seat 41 through the linkage 42, converting the vertical wind load into the horizontal sliding of the movable seat 41, avoiding the clamp 3 from directly bearing the vertical impact; the horizontal movement of the movable seat 41 is buffered by the second buffer member, which absorbs energy by utilizing the elastic deformation of the buffer member, thereby reducing the vibration transmission efficiency.
[0043] Multiple connecting rods 42 can be added to each group to improve the stability of the connection between the clamp 3 and the moving seat 41 and avoid single-point failure; a guide rail is set on the support seat 2, and the moving seat 41 cooperates with the guide rail through the slider to reduce sliding friction and improve the smoothness of movement.
[0044] By adopting the above technical solution, the force can be distributed and transmitted. The vertical sway of the wire clamp 3 is converted into the horizontal movement of the moving seat 41 through the connecting rod 42, which avoids the wire clamp 3 from being deformed or broken due to excessive local force. It can improve the buffering efficiency. The horizontal movement stroke of the moving seat 41 is controllable, which makes it easier for the buffering component to play the best buffering effect and reduce the vibration amplitude of the wire clamp 3. It can improve the structural stability. The symmetrical design of the double moving seat 41 and the double connecting rod 42 ensures that the wire clamp 3 is subjected to uniform force and reduces the risk of unilateral load.
[0045] Further, please refer to Figures 1 to 6 As a specific embodiment of the wind-resistant power transmission support provided by the present invention, the second buffer component includes two first springs 6.
[0046] Two first springs 6 are respectively arranged on both sides of the movable base 41 along the laying direction of the cable 91, and the two ends of each first spring 6 are respectively connected to the movable base 41 and the support base 2.
[0047] When the movable seat 41 moves toward or away from the support seat 2, both first springs 6 are adapted to drive the movable seat 41 to move in the opposite direction, so as to buffer the force generated when the movable seat 41 moves.
[0048] When the movable seat 41 is pushed by the connecting rod 42 to move toward the center of the support seat 2, the first spring 6 on one side is compressed and the first spring 6 on the other side is stretched. Both first springs 6 generate opposite elastic forces, which prevent the movable seat 41 from moving further. When the wind force weakens, the first spring 6 restores its deformation, causing the movable seat 41 to move in the opposite direction, so that the clamp 3 is reset.
[0049] The first springs 6 on both sides of the movable seat 41 correspond to the movement in two directions, one closer to the support seat 2 and the other farther away from the support seat 2. No matter which direction the movable seat 41 moves, at least one first spring 6 will generate a reverse force to achieve bidirectional buffering. When the first spring 6 is compressed or stretched, it converts the kinetic energy of the movable seat 41 into elastic potential energy, and then slowly releases the potential energy to reduce the vibration amplitude and avoid impact load.
[0050] By adopting the above technical solution, the first spring 6 buffer does not require a complex control system, is low in cost, easy to maintain, and suitable for long-term outdoor operation; it can achieve linear controllability of the buffering effect, the elastic force of the first spring 6 is proportional to the deformation, the buffering process is smooth, and the wind load can be accurately matched by selecting the first spring 6 with different elastic coefficients; it can achieve bidirectional reset capability, no matter which direction the moving seat 41 moves, the first spring 6 can provide reverse reset force to ensure that the clamp 3 returns to its initial position after the wind disappears, avoiding the accumulation of structural stress caused by long-term offset.
[0051] Further, please refer to Figures 1 to 6As a specific embodiment of the wind-resistant power transmission support provided by the present invention, the connecting component 4 also includes a guide tube 43 and a guide rod 44.
[0052] The guide tube 43 is fixedly mounted on the support base 2, and the axial direction of the guide tube 43 is parallel to the vertical direction.
[0053] The guide rod 44 is slidably connected to the guide tube 43 on the same axis, and the upper end of the guide rod 44 is fixedly connected to the wire clamp 3.
[0054] When the cable 91 causes the clamp 3 to sway up and down, the clamp 3 causes the guide rod 44 to slide along the axial (vertical) direction of the guide tube 43, restricting the clamp 3 to move only in the vertical direction and preventing lateral deviation.
[0055] The rigid guide constraint restricts the movement freedom of the clamp 3: the coaxial sliding fit between the guide tube 43 and the guide rod 44 forces the clamp 3 to move only in the vertical direction, eliminating the lateral sway of the clamp 3 (such as left and right offset) caused by uneven wind force; the rigid connection between the guide rod 44 and the clamp 3 can help bear part of the vertical load of the clamp 3, reduce the stress on the connecting rod 42, and prevent the connecting rod 42 from bending and deforming.
[0056] By adopting the above technical solution, the lateral displacement of the wire clamp 3 when it swings up and down can be avoided, ensuring that the clamping position of the wire clamp 3 and the cable 91 is stable and preventing the cable 91 from being locally worn due to displacement; the guide rod 44 shares the vertical load of the wire clamp 3, reduces the bending stress of the connecting rod 42, and extends the service life of the connecting component 4.
[0057] Further, please refer to Figures 1 to 6 As a specific embodiment of the wind-deflection-resistant power transmission support provided by the present invention, a displacement sensor 45 is provided between the guide tube 43 and the guide rod 44. The displacement sensor 45 is used to measure the distance that the wire clamp 3 moves toward the support seat 2, so as to indirectly measure the wind deflection value of the cable 91.
[0058] A displacement sensor 45 is installed between the guide tube 43 and the guide rod 44. The detection end of the displacement sensor 45 is connected to the guide rod 44, and the reference end is fixed to the guide tube 43. When the cable 91 is driven by the wind to move the clamp 3 towards the support base 2, the guide rod 44 slides downward along the guide tube 43. The displacement sensor 45 measures the sliding distance of the guide rod 44 in real time (i.e., the distance the clamp 3 moves towards the support base 2) and transmits the data to the control system. The wind deflection angle or offset of the cable 91 is indirectly calculated through a preset algorithm (such as geometric relationship conversion).
[0059] The distance that the clamp 3 moves toward the support 2 is positively correlated with the degree of wind deflection of the cable 91. The stronger the wind, the more violent the cable 91 shakes, and the greater the distance that the clamp 3 moves. By measuring this displacement, the wind deflection value of the cable 91 can be indirectly inferred. The displacement sensor 45 converts the mechanical displacement into an electrical signal (such as voltage, current or digital signal), which is convenient for remote transmission and data processing, and realizes real-time monitoring of the wind deflection status.
[0060] By adopting the above technical solution, real-time quantitative monitoring of cable wind deflection value can be achieved, replacing traditional manual inspection and improving operation and maintenance efficiency; through long-term monitoring data, wind deflection patterns can be analyzed to identify potential risks in advance, such as an increase in abnormal wind deflection which may indicate that clamp 3 is loose, thus avoiding accidents.
[0061] Further, please refer to Figures 1 to 6 As a specific embodiment of the wind-resistant power transmission support provided by the present invention, the first buffer component 5 includes an alignment tube 51 and a second spring 52.
[0062] The alignment tube 51 is coaxially sleeved on the outside of the mounting rod 1. The inside of the alignment tube 51 is used for the support seat 2 to pass through, and the inner wall of the alignment tube 51 is slidably connected to the outer wall of the support seat 2.
[0063] The second spring 52 is sleeved on the mounting rod 1, and the two ends of the second spring 52 are connected to the alignment tube 51 and the support seat 2 respectively.
[0064] When the cable 91 drives the clamp 3 to sway horizontally, the support 2 is adapted to move toward or away from the tower 9, and the second spring 52 is adapted to buffer the force when the support 2 moves.
[0065] When the wind causes the cable 91 to sway horizontally, the cable 91 drives the support seat 2 to move along the axial direction of the mounting rod 1 (towards or away from the tower 9) through the clamp 3 and connecting component 4. The support seat 2 compresses or stretches the second spring 52, and the spring generates a reverse elastic force to buffer the moving force of the support seat 2 and reduce the horizontal wind deflection.
[0066] The sliding fit between the alignment tube 51 and the support seat 2 restricts the support seat 2 to move only along the axial direction of the mounting rod 1, avoiding lateral offset or rotation. When the support seat 2 moves, the second spring 52 absorbs the kinetic energy in the horizontal direction through elastic deformation and releases the energy through restoring deformation, reducing the moving speed and amplitude of the support seat 2 and avoiding rigid impact.
[0067] By adopting the above technical solution, a design specifically for the horizontal wind-induced swaying of cable 91 is implemented, effectively reducing the impact force between the support base 2 and the mounting rod 1, and protecting the connection between the mounting rod 1 and the tower 9; the guiding function of the alignment tube 51 ensures that the support base 2 moves in a precise direction, avoiding structural distortion or jamming caused by horizontal swaying.
[0068] Further, please refer to Figures 1 to 6 As a specific embodiment of the wind-resistant power transmission support provided by the present invention, an anti-rotation component 7 is also provided between the support base 2 and the alignment tube 51 to restrict the rotation of the support base 2 relative to the alignment tube 51.
[0069] When the support seat 2 moves axially along the alignment tube 51, the anti-rotation component 7 forces the support seat 2 to remain circumferentially fixed with the alignment tube 51, preventing the support seat 2 from rotating due to uneven wind force or vibration.
[0070] The structural features of the anti-rotation component 7 allow the support base 2 to move only along the axial direction and prevent it from rotating around the axis of the mounting rod 1, thus ensuring the relative position stability of components such as the clamp 3 and the connecting component 4; and preventing the additional torque caused by rotation from being transmitted to the mounting rod 1 and the tower 9, thus preventing the connecting bolts from loosening or the structure from fatigue damage.
[0071] Further, please refer to Figures 1 to 6 As a specific embodiment of the wind-resistant power transmission support provided by the present invention, the anti-rotation component 7 includes a sliding rod 71 and a sliding groove 72.
[0072] The slide rod 71 is mounted on the support base 2, and the axis of the slide rod 71 is perpendicular to the axis of the alignment tube 51.
[0073] The groove 72 is formed on the outer wall of the alignment tube 51. The length direction of the groove 72 is parallel to the axial direction of the alignment tube 51, and the slide rod 71 is slidably connected to the groove 72.
[0074] When the support base 2 moves axially along the alignment tube 51, the slide rod 71 slides synchronously within the slide groove 72. The slide groove 72 restricts the circumferential movement of the slide rod 71, thereby preventing the support base 2 from rotating relative to the alignment tube 51. The length direction of the slide groove 72 is parallel to the axial direction of the alignment tube 51, allowing the slide rod 71 to move axially with the support base 2. The width of the slide groove 72 matches the diameter of the slide rod 71, restricting the circumferential displacement of the slide rod 71, thereby forcing the support base 2 and the alignment tube 51 to maintain circumferential synchronization. Both the slide rod 71 and the slide groove 72 are rigid structures with no complex transmission components, making them wear-resistant, vibration-resistant, and suitable for harsh outdoor environments.
[0075] Further, please refer to Figures 1 to 6 As a specific embodiment of the wind-resistant power transmission support provided by the present invention, the clamp 3 is provided with a vibration damper 8 on the side facing away from the support base 2. The vibration damper 8 includes a connecting rod 81 and a hammer head 82. When the cable 91 experiences a slight sway, the hammer head 82 is adapted to sway synchronously to counteract the slight vibration of the cable 91.
[0076] When cable 91 experiences minor high-frequency vibrations due to wind or other factors (such as light wind vibrations), the hammer head 82 sways synchronously with cable 91. The inertia of the hammer head 82 generates a damping force opposite to the vibration direction of cable 91, absorbing vibration energy and reducing the vibration amplitude of cable 91.
[0077] The natural frequency of the vibration damper 8 is close to the wind vibration frequency of the cable 91. When the cable 91 vibrates, the hammer head 82 absorbs the vibration energy through resonance, which reduces the vibration of the cable 91. The connection between the hammer head 82 and the connecting rod 81 has frictional damping, which can convert the vibration energy into heat energy for dissipation, further reducing the vibration amplitude.
[0078] The vibration damper 8 can be directly installed on the existing wire clamp 3 without changing the main structure of the bracket, making the modification convenient and applicable to a wide range of applications.
[0079] By adopting the above technical solution, the vibration transmission to the wire clamp 3 and the connecting component 4 can be reduced, thereby reducing the risk of wire clamp 3 clamping force attenuation and bolt loosening.
[0080] The technical solution adopted in this application also provides a power transmission tower, including the wind-resistant power transmission support proposed in any of the preceding claims.
[0081] The beneficial effects of the transmission tower provided in this embodiment are the same as those of the aforementioned wind-resistant transmission support, and will not be repeated here.
[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A wind-resistant power transmission support, characterized in that, include: Mounting rods are used for horizontally fixing installations on poles and towers; A support base is slidably connected to the mounting rod along the axial direction of the mounting rod; Two wire clamps are respectively disposed on both sides of the support base in the vertical direction, both for fixing the cable; both wire clamps are connected to the support base through connecting members so that the wire clamps can move toward or away from the support base; as well as The buffer assembly includes a first buffer member and a second buffer member, wherein the first buffer member is disposed between the support base and the mounting rod to buffer the force exerted when the support base moves; The second buffer member is disposed between the wire clamp and the support base to buffer the force exerted when the wire clamp moves.
2. The wind-resistant power transmission support as described in claim 1, characterized in that, The connecting component includes: Two movable seats are slidably connected to the support seat along the cable laying direction; and Two sets of connecting rods are respectively arranged on both sides of the support base in the vertical direction, and each set of connecting rods is located between the wire clamp and the support base on the same side; each set of connecting rods includes two connecting rods corresponding to the two movable seats respectively, and the two ends of each connecting rod are respectively hinged to the movable seat and the wire clamp; When the cable causes the clamp to sway up and down, the clamp is adapted to drive the movable seat to move toward or away from the support seat via the connecting rod; The second buffer member is connected to the movable seat to buffer the force generated when the movable seat moves.
3. The wind-resistant power transmission support as described in claim 2, characterized in that, The second buffer component includes: Two first springs are respectively arranged on both sides of the movable base along the cable laying direction, and the two ends of each first spring are respectively connected to the movable base and the support base; When the movable seat moves toward or away from the support seat, both first springs are adapted to drive the movable seat to move in the opposite direction to buffer the force generated when the movable seat moves.
4. The wind-resistant power transmission support as described in claim 2, characterized in that, The connecting member further includes: A guide tube is fixedly mounted on the support base, and the axial direction of the guide tube is parallel to the vertical direction; and The guide rod is slidably connected coaxially inside the guide tube, and the upper end of the guide rod is fixedly connected to the wire clamp.
5. The wind-resistant power transmission support as described in claim 4, characterized in that, A displacement sensor is provided between the guide tube and the guide rod. The displacement sensor is used to measure the distance the wire clamp moves toward the support base, so as to indirectly measure the wind deflection value of the cable.
6. The wind-resistant power transmission support as described in claim 1, characterized in that, The first buffer component includes: An alignment tube, coaxially sleeved outside the mounting rod, has an interior for the support seat to pass through, and its inner wall is slidably connected to the outer wall of the support seat; and A second spring is sleeved on the mounting rod, and both ends of the second spring are connected to the alignment tube and the support base, respectively. When the cable drives the clamp to sway horizontally, the support base is adapted to move toward or away from the tower, and the second spring is adapted to buffer the force when the support base moves.
7. The wind-resistant power transmission support as described in claim 6, characterized in that, An anti-rotation component is also provided between the support base and the alignment tube to restrict the rotation of the support base relative to the alignment tube.
8. The wind-resistant power transmission support as described in claim 7, characterized in that, The anti-rotation component includes: A sliding rod is disposed on the support base, and the axial direction of the sliding rod is perpendicular to the axial direction of the alignment tube; and A sliding groove is formed on the outer wall of the alignment tube. The length direction of the sliding groove is parallel to the axial direction of the alignment tube, and the sliding rod is slidably connected to the sliding groove.
9. The wind-resistant power transmission support as described in claim 1, characterized in that, The clamp is provided with a vibration damper on the side facing away from the support base. The vibration damper includes a connecting rod and a hammer head. When the cable experiences slight swaying, the hammer head is adapted to sway synchronously to counteract the slight vibration of the cable.
10. A transmission tower, characterized in that, Includes multiple wind-resistant power transmission supports as described in any one of claims 1-9.