Suspender damping frame with online frequency modulation buffering function

Abstract

A suspension bridge cable vibration damping frame with online frequency modulation buffering function includes a first fastener, a left clamping plate bracket, a right clamping plate bracket, and a second fastener. Suspension cables are clamped on the inner sides of both the first and second fasteners. A left clamping plate bracket is located between the top and bottom of the inner wall of the first fastener, and the first fastener is fixed to the two left clamping plate brackets by multiple sets of first fixing bolt assemblies. A right clamping plate bracket is located between the top and bottom of the inner wall of the second fastener, and the second fastener is fixed to the two right clamping plate brackets by multiple sets of second fixing bolt assemblies. The right clamping plate brackets and left clamping plate brackets are symmetrically arranged. The left clamping plate bracket includes two left clamping plates, two left flanges, and a connecting plate. The two left clamping plates are arranged parallel to each other, and their end faces are inserted into the connecting plate. The two sides of the connecting plate are respectively connected to the inner sides of the two left clamping plates. This invention can reduce structural fatigue of the vibration damping frame and can also be adjusted according to the actual wind vibration spectrum differences in different regions.

Description

Technical Field

[0001] This invention relates to an improvement in suspension bridge cable vibration damping frame technology, belonging to the field of bridge engineering, and particularly to a suspension bridge cable vibration damping frame with online frequency modulation buffering function. Background Technology

[0002] In suspension bridges, when multiple parallel cables are used at a single suspension point, vibration damping frames are typically used to connect these cables to reduce wind-induced vibrations. However, most existing vibration damping frames are rigid structures that clamp two cables together using bolt assemblies. This type of structure lacks buffering capabilities when subjected to wind loads and other impacts, leading to significant stress variations and wind-induced deformation in the connected cable assemblies, ultimately causing structural fatigue during long-term use. Furthermore, the vibration frequency of the damping frame is fixed after manufacturing and installation. During the operation of the suspension bridge, the actual wind vibration spectrum varies significantly in different areas, and existing damping frames cannot adjust to these differences, thus failing to guarantee optimal vibration damping performance at all times.

[0003] Chinese patent application CN202223387868.0, filed on December 16, 2022, discloses a shock-absorbing frame structure for bridge suspension cables, including two sets of clamping mechanisms and a connecting mechanism. The clamping mechanism includes two sets of clamping plates, which are interconnected on their left sides by a first bolt. Connecting plates are fixedly connected to the middle of the opposing surfaces of two sets of connecting blocks within the two clamping mechanisms. Each connecting plate has a set of reinforcing plates on its front and rear sides. The two sets of reinforcing plates are movably connected to the two sets of connecting plates on their left and right sides by second bolts. The connecting mechanism includes two sets of connecting wires. The rod; the two sets of slings are respectively clamped into the two sets of clamping plates. When the clamping plates open outward along the connecting block, after the angle adjustment is completed, the two sets of second bolts are tightened again, and the two sets of reinforcing plates are fixed again. The two sets of reinforcing plates can strengthen the connection between the two sets of clamping mechanisms and play a role in shock absorption between the two sets of slings. It is convenient to use and improves the safety of the shock absorber. Although the above solution can reduce the structural fatigue of the shock absorber by strengthening the connection between the two sets of clamping mechanisms through the two sets of reinforcing plates, it still does not solve the problem of not being able to make corresponding adjustments according to the actual wind vibration spectrum differences in different regions.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this patent application and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to overcome the problem that existing technologies can reduce the structural fatigue of vibration damping frames, but cannot make corresponding adjustments according to the actual wind vibration spectrum differences in different regions. This invention provides a suspension bridge cable vibration damping frame with online frequency modulation buffering function that can reduce the structural fatigue of vibration damping frames and can also make corresponding adjustments according to the actual wind vibration spectrum differences in different regions.

[0006] To achieve the above objectives, the technical solution of the present invention is: a suspension bridge cable vibration damping frame with online frequency modulation buffering function, wherein the suspension bridge cable vibration damping frame with online frequency modulation buffering function includes a first fastener, a left clamping plate bracket, a right clamping plate bracket and a second fastener;

[0007] Both the first and second fasteners have slings clamped on their inner sides. A left clamping plate bracket is provided between the top and bottom of the inner wall of the first fastener. The first fastener is fixed to the two left clamping plate brackets by multiple sets of first fixing bolt assemblies. A right clamping plate bracket is provided between the top and bottom of the inner wall of the second fastener. The second fastener is fixed to the two right clamping plate brackets by multiple sets of second fixing bolt assemblies.

[0008] The right clamping plate bracket and the left clamping plate bracket are arranged symmetrically.

[0009] The left clamp bracket includes two left clamps, two left flanges and a connecting plate. The two left clamps are arranged in parallel, and the end faces of the two left clamps are inserted into the connecting plate. The left connecting plate is a rectangular plate, and the two sides of the connecting plate are respectively connected to the inner sides of the two left clamps. The two left flanges are arranged opposite to each other on the outer sides of the left clamps.

[0010] The right clamp bracket includes two right clamps, two right flanges, and a push plate. The two left clamps are arranged in parallel. The left ends of the two right clamps are connected by the push plate. The side of the push plate is connected to one side of the spring seat, the other side of the spring seat is connected to one end of the spring, the other end of the spring is connected to one end of the adjusting screw, and the other end of the adjusting screw is inserted into the side of the connecting plate. The outer sides of the two right clamps are respectively connected to the outer sides of the two right flanges. The two right flanges and the two left flanges are fixed by double-ended studs and locking nuts on multiple sets of sliding screw assemblies.

[0011] The first fastener includes two straight segment plates and a semi-circular annular segment plate. One end of the two straight segment plates is connected to both ends of the semi-circular annular segment plate. Two through holes for bolt installation are provided on the straight segment plates respectively. Each set of first fixing bolt assemblies is installed in the corresponding through holes.

[0012] The semi-circular annular segment plate of the first fastener serves as the installation limiting surface around the sling, and an annular rubber pad is provided between the semi-circular annular segment plate and the sling.

[0013] The first fixing bolt assembly and the second fixing bolt assembly have the same structure. The first fixing bolt assembly includes a bolt, a washer and a nut. The two ends of the bolt pass through through holes and are fixed by the nut.

[0014] A washer is provided between the nut and the outer side of the first fastener.

[0015] The left clamping plate has mounting holes perpendicular to the connecting plate on its side, and bolts are installed through the mounting holes and the straight section plate in sequence.

[0016] The left flange is provided with multiple left seat holes;

[0017] The connecting plate has an internal threaded through hole at the center of its side surface, which is parallel to the clamping plate. The other end of the adjusting screw is threaded into the internal threaded through hole.

[0018] The right clamping plate has a right through hole on its side, which is parallel to the push plate, and the right flange has a right seat hole on its side, which is perpendicular to the push plate.

[0019] The sliding screw assembly is arranged around the gap between the left clamping plate bracket and the right clamping plate bracket. Each sliding screw assembly includes four locking nuts, two locking washers and double-ended studs. The two ends of the double-ended studs pass through the right seat hole and the left seat hole respectively and are fixed by two locking nuts. Locking washers are provided between the locking nuts and the right seat hole and the left seat hole.

[0020] The spring seat includes a protective cover and an end face base. The side of the protective cover is connected to the outer perimeter of the end face base, and the side of the end face base located inside the protective cover is connected to one end of the spring.

[0021] The spring is a cylindrical helical compression spring.

[0022] The adjusting screw includes a coaxially arranged round shaft section and push rod, as well as a hexagonal section. The hexagonal section is located between the round shaft section and the push rod, and the outer side of the round shaft section is provided with external threads.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. In the suspension bridge cable vibration damping frame with online frequency modulation buffering function of the present invention, a left clamping plate bracket is provided between the top and bottom of the inner wall of the first fastener, and the first fastener is fixed to the two left clamping plate brackets by multiple sets of first fixing bolt assemblies. A right clamping plate bracket is provided between the top and bottom of the inner wall of the second fastener, and the second fastener is fixed to the two right clamping plate brackets by multiple sets of second fixing bolt assemblies. The end faces of the two left clamping plates are inserted into the connecting plate. The left connecting plate is a rectangular plate, and the two sides of the connecting plate are respectively connected to the inner sides of the two left clamping plates. Two left flanges are arranged opposite to each other on the outer sides of the left clamping plates. The left ends of the two right clamping plates are connected by a push plate. The side of the push plate is connected to one side of the spring seat, the other side of the spring seat is connected to one end of the spring, and the other end of the spring is connected to one end of the adjusting screw. The other end is inserted into the side of the connecting plate. The outer sides of the two right clamps are respectively connected to the outer sides of the two right flanges. The two right flanges and the two left flanges are fixed by double-headed studs and locking nuts on multiple sets of sliding screw assemblies. In application, the threaded pair between the adjusting screw and the connecting plate of the left clamp bracket is first adjusted by rotating the adjusting screw to compress the spring to obtain a certain amount of pre-compression deformation to achieve the preset force required by the vibration damper. Then, the two ends of the double-headed studs pass through the two bushings and extend to the outside. The double-headed studs and bushings are clearance-fitted. The left and right clamp brackets on both sides can compress the spring when the load exceeds the preset force. The left and right clamp brackets slide axially, and the distance between the right flange and the left flange decreases to accommodate the spring compression deformation. Thus, the wind-induced vibration or other loads on the vibration damper are buffered and transmitted to the sling. The advantages of this design include:

[0025] Firstly, the change in spring compression deformation reduces the impact on the suspension cables, thereby reducing fatigue damage to the cables caused by the rigid structure of the existing suspension bridge vibration damping frame under load and improving the fatigue performance of the suspension cables.

[0026] Secondly, by rotating and adjusting the threaded pair between the adjusting screw and the left clamp bracket connecting plate to different positions, the compression deformation of the spring can be changed, thereby easily and conveniently changing the stiffness of the vibration damper online and realizing the frequency conversion vibration control of the vibration damper.

[0027] Therefore, the present invention can reduce the structural fatigue of the vibration damping frame and can also make corresponding adjustments according to the actual wind vibration spectrum differences in different regions.

[0028] 2. In the suspension bridge cable vibration damping frame with online frequency modulation buffering function of the present invention, the first fastener includes two straight plate segments and a semi-circular annular plate segment. One end of each of the two straight plate segments is connected to both ends of the semi-circular annular plate segment. Two through holes for bolt installation are provided on each straight plate segment. Each set of first fixing bolt assemblies is installed in the corresponding through holes. The semi-circular annular plate segment of the first fastener serves as the installation limiting surface surrounding the cable. An annular rubber pad is provided between the semi-circular plate segment and the cable. In application, the semi-circular plate segment of the fastener serves as the installation limiting surface surrounding the cable. By providing the annular rubber pad, not only is a tight fit between the fastener and the cable ensured, but also good sealing and vibration damping effects are provided, preventing the cable from sliding or wearing within the fastener, thus improving the stability and reliability of the installation. Therefore, the present invention is safe to use and has good vibration damping effect.

[0029] 3. In the suspension bridge cable vibration damping frame with online frequency modulation buffering function of the present invention, the sliding screw assembly securely connects the left and right flanges together through the cooperation of double-ended studs, locking nuts, and washers. Simultaneously, it allows relative sliding between the left and right clamping plate supports within a certain range. This not only ensures the stability of the vibration damping frame during vibration but also effectively prevents loosening and damage between components, improving the overall reliability of the vibration damping frame. The protective cover of the spring seat effectively protects the springs, preventing them from being interfered with or damaged by external factors during operation, extending the service life of the springs, and ensuring their long-term stable operation, thereby improving the reliability of the vibration damping frame. Therefore, the present invention is easy to maintain and has a long service life. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the present invention.

[0031] Figure 2 This is a top view of the present invention.

[0032] Figure 3 This is a schematic diagram of the structure of the first fastener in this invention.

[0033] Figure 4 This is a top view of the first fastener in this invention.

[0034] Figure 5 This is a schematic diagram of the structure of the left clamping plate bracket in this invention.

[0035] Figure 6 This is a side view of the left clamp bracket in this invention.

[0036] Figure 7 This is a schematic diagram of the adjusting screw in this invention.

[0037] Figure 8 This is a schematic diagram of the spring seat in this invention.

[0038] Figure 9 This is a schematic diagram of the right clamping plate bracket in this invention.

[0039] Figure 10 This is a schematic diagram of the sliding screw assembly in this invention.

[0040] Figure 11 This is a schematic diagram of the structure of the first fixing bolt assembly in this invention.

[0041] In the diagram: First fastener 1, straight section plate 11, semi-circular annular section plate 12, through hole 13, left clamping plate bracket 2, left clamping plate 21, left flange 22, connecting plate 23, adjusting screw 3, spring 4, spring seat 5, right clamping plate bracket 6, right clamping plate 61, two right flanges 62, push plate 63, sliding screw assembly 7, locking nut 71, locking washer 72, double-ended stud 73, first fixing bolt assembly 8, second fixing bolt assembly 80, annular rubber pad 9, second fastener 10. Detailed Implementation

[0042] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] See Figures 1 to 11 A suspension bridge cable vibration damping frame with online frequency modulation buffering function, the suspension bridge cable vibration damping frame with online frequency modulation buffering function includes a first fastener 1, a left clamping plate bracket 2, a right clamping plate bracket 6 and a second fastener 10;

[0044] The first fastener 1 and the second fastener 10 are both clamped with slings A on their inner sides. A left clamping plate bracket 2 is provided between the top and bottom of the inner wall of the first fastener 1. The first fastener 1 and the two left clamping plate brackets 2 are fixed by multiple sets of first fixing bolt assemblies 8. A right clamping plate bracket 6 is provided between the top and bottom of the inner wall of the second fastener 10. The second fastener 10 and the two right clamping plate brackets 6 are fixed by multiple sets of second fixing bolt assemblies 80.

[0045] The right clamping plate bracket 6 and the left clamping plate bracket 2 are arranged symmetrically.

[0046] The left clamping plate bracket 2 includes two left clamping plates 21, two left flanges 22 and a connecting plate 23. The two left clamping plates 21 are arranged in parallel, and the end faces of the two left clamping plates 21 are inserted into the connecting plate 23. The left connecting plate 23 is a rectangular plate, and the two sides of the connecting plate 23 are respectively connected to the inner sides of the two left clamping plates 21. The two left flanges 22 are arranged opposite to each other on the outer sides of the left clamping plates 21.

[0047] The right clamp bracket 6 includes two right clamps 61, two right flanges 62, and a push plate 63. Two left clamps 21 are arranged in parallel. The left ends of the two right clamps 61 are connected by the push plate 63. The side of the push plate 63 is connected to one side of the spring seat 5. The other side of the spring seat 5 is connected to one end of the spring 4. The other end of the spring 4 is connected to one end of the adjusting screw 3. The other end of the adjusting screw 3 is inserted into the side of the connecting plate 23. The outer sides of the two right clamps 61 are respectively connected to the outer sides of the two right flanges 62. The two right flanges 62 and the two left flanges 22 are fixed by double-headed studs 73 and locking nuts 71 on multiple sets of sliding screw assemblies 7.

[0048] The first fastener 1 includes two straight segment plates 11 and a semi-circular annular segment plate 12. One end of the two straight segment plates 11 is connected to both ends of the semi-circular annular segment plate 12. Two bolt mounting through holes 13 are provided on the straight segment plates 11 respectively. Each set of first fixing bolt assemblies 8 is installed in the corresponding through hole 13.

[0049] The semi-circular annular segment plate 12 of the first fastener 1 serves as the installation limiting surface surrounding the sling A, and an annular rubber pad 9 is provided between the semi-circular annular segment plate 12 and the sling A.

[0050] The first fixing bolt assembly 8 and the second fixing bolt assembly 80 have the same structure. The first fixing bolt assembly 8 includes a bolt 81, a washer 82 and a nut 82. The two ends of the bolt 81 pass through the through hole 13 and are fixed by the nut 82.

[0051] A washer 82 is provided between the nut 82 and the outer side of the first fastener 1.

[0052] The left clamping plate 21 has a mounting hole 211 perpendicular to the connecting plate 23 on its side, and bolts 81 are installed through the mounting hole 211 and the straight section plate 11 in sequence.

[0053] The left flange 22 is provided with a plurality of left seat holes 221;

[0054] The connecting plate 23 has an internal threaded through hole 231 at the center of its side surface, which is parallel to the clamping plate 21. The other end of the adjusting screw 3 is threaded into the internal threaded through hole 231.

[0055] The right clamping plate 61 has a right through hole 611 on its side, which is parallel to the push plate 63, and the right flange 62 has a right seat hole 621 on its side, which is perpendicular to the push plate 63.

[0056] The sliding screw assembly 7 is arranged around the gap area between the left clamping plate bracket 2 and the right clamping plate bracket 6. Each sliding screw assembly 7 includes four locking nuts 71, two locking washers 72 and double-ended studs 73. The two ends of the double-ended studs 73 pass through the right seat hole 621 and the left seat hole 221 respectively and are fixed by the two locking nuts 71. Locking washers 72 are provided between the locking nuts 71 and the right seat hole 621 and the left seat hole 221.

[0057] The spring seat 5 includes a protective cover 51 and an end face base 52. The side of the protective cover 51 is connected to the outer perimeter of the end face base 52, and the side of the end face base 52 located inside the protective cover 51 is connected to one end of the spring 4.

[0058] The spring 4 is a cylindrical helical compression spring.

[0059] The adjusting screw 3 includes a coaxially arranged round shaft section 31 and push rod 33, as well as a hexagonal section 32. The hexagonal section 32 is located between the round shaft section 31 and the push rod 33, and the outer side of the round shaft section 33 is provided with external threads.

[0060] The supplementary technical features of this invention are as follows:

[0061] Since the left clamping plate bracket 2 and the right clamping plate bracket 6 are connected by a sliding screw assembly 7, and the right clamping plate bracket 6 is connected to the spring seat 5, the spring 4 and the adjusting screw 3, when the sling vibrates, the right clamping plate bracket 6 will drive the push plate 63, the spring seat 5 and the spring 4 to move together. During the movement, the spring 4 will undergo elastic deformation, absorb vibration energy and play a buffering role. At the same time, by adjusting the adjusting screw 3, the stiffness of the spring 4 can be changed in real time to realize the online frequency adjustment function, so that the vibration damping frame can always adapt to the changes in the vibration frequency of the sling and maintain a good vibration damping effect.

[0062] Example 1:

[0063] A suspension bridge cable vibration damping frame with online frequency modulation buffering function is disclosed. The frame includes a first fastener 1, a left clamping plate support 2, a right clamping plate support 6, and a second fastener 10. Suspension cables A are clamped on the inner sides of both the first fastener 1 and the second fastener 10. A left clamping plate support 2 is positioned between the top and bottom of the inner wall of the first fastener 1, and the first fastener 1 is fixed to the two left clamping plate supports 2 by multiple sets of first fixing bolt assemblies 8. A right clamping plate support 6 is positioned between the top and bottom of the inner wall of the second fastener 10, and the second fastener 10 is fixed to the two right clamping plate supports 6 by multiple sets of second fixing bolt assemblies 80. The right clamping plate supports 6 and the left clamping plate supports 2 are arranged symmetrically. Each left clamping plate support 2 includes two left clamping plates 21, two left flanges 22, and a connecting plate 23. The two left clamping plates 21 are arranged in parallel, and the ends of the two left clamping plates 21 are connected. The left connecting plate 23 is a rectangular plate, and the two sides of the connecting plate 23 are respectively connected to the inner sides of the two left clamping plates 21. The two left flanges 22 are respectively arranged opposite to each other on the outer sides of the left clamping plates 21. The right clamping plate bracket 6 includes two right clamping plates 61, two right flanges 62 and a push plate 63. The two left clamping plates 21 are arranged in parallel. The left ends of the two right clamping plates 61 are connected by the push plate 63. The side of the push plate 63 is connected to one side of the spring seat 5. The other side of the spring seat 5 is connected to one end of the spring 4. The other end of the spring 4 is connected to one end of the adjusting screw 3. The other end of the adjusting screw 3 is inserted into the side of the connecting plate 23. The outer sides of the two right clamping plates 61 are respectively connected to the outer sides of the two right flanges 62. The two right flanges 62 and the two left flanges 22 are fixed by double-headed studs 73 and locking nuts 71 on multiple sets of sliding screw assemblies 7.

[0064] In application: During the normal operation of the suspension bridge, vibration sensors installed on the cables monitor the vibration of the cables in real time. When the vibration frequency of the cables deviates from the normal range, the vibration damper needs to be initially adjusted. First, the adjusting screw 3 is rotated to connect the adjusting plate 23 on the left clamping plate bracket 2, so that the compression spring 4 receives a certain amount of pre-compression deformation to achieve the preset force required by the vibration damper. Then, the sliding screw assembly 7 is locked. When the load on either side of the left clamping plate bracket 2 or the right clamping plate bracket 6 exceeds the preset force, the spring 4 can be compressed. Because the double-ended stud 73 and the bushing 74 are clearance-fitted, the left clamping plate bracket 2 and the right clamping plate bracket 6 can slide axially. The distance between the left flange 22 and the right flange 62 is reduced to accommodate the compression deformation of the spring 4. This buffers the wind-induced vibration or other loads on the vibration damper before transmitting them to the cables, reducing the impact on the cables, reducing the fatigue damage to the cables caused by the rigid structure of the existing suspension bridge vibration damper when under load, and improving the fatigue performance of the cables.

[0065] Example 2:

[0066] Example 2 is basically the same as Example 1, except that:

[0067] The semi-circular annular segment plate 12 of the first fastener 1 serves as the installation limiting surface surrounding the sling A, and an annular rubber pad 9 is provided between the semi-circular annular segment plate 12 and the sling A; the first fixing bolt assembly 8 and the second fixing bolt assembly 80 have the same structure. The first fixing bolt assembly 8 includes a bolt 81, a washer 82, and a nut 82. The two ends of the bolt 81 pass through the through holes 13 and are fixed by the nut 82; a washer 82 is provided between the nut 82 and the outer side of the first fastener 1; the side of the left clamping plate 21 has an installation hole 211 that is perpendicular to the connecting plate 23, and the bolt 81 passes through the installation hole 211 and the straight segment plate 11 in sequence; the left flange 22 has multiple left seat holes 221; the center of the side of the connecting plate 23 has an internal threaded through hole 231 that is parallel to the clamping plate 21, and the other end of the adjusting screw 3 is threaded into the internal threaded through hole 231.

[0068] In application: First, wrap the semi-circular annular plate 12 of the first fastener 1 around the sling A, so that it fits tightly with the annular rubber pad 9 to form an installation limiting surface for the sling A. Then, the bolt 81 passes through the mounting hole 211 on the side of the left clamp 21 and the through hole 13 on the straight section plate 11 of the first fastener 1. Then, put washers 82 and nuts 82 on both ends of the bolt 81 respectively, and tighten the nuts 82 to firmly fix the left clamp bracket 2 on the first fastener 1. Connect one side of the spring seat 5 to the side of the push plate 63, and connect one end of the spring 4 to the other side of the spring seat 5. Then, firmly fix the right clamp bracket 6 on the first fastener 1. The left clamp bracket 2 and the right clamp bracket 6 can slide relative to each other within a certain range, which can adapt to the vibration deformation of the sling A and can automatically adjust the stress state of the vibration damping frame during vibration, further improving the vibration damping effect.

[0069] Example 3:

[0070] Example 3 is basically the same as Example 1, except that:

[0071] The right clamping plate 61 has a right through hole 611 parallel to the push plate 63 on its side, and the right flange 62 has a right seat hole 621 perpendicular to the push plate 63 on its side. The sliding screw assembly 7 is arranged around the gap between the left clamping plate bracket 2 and the right clamping plate bracket 6. Each sliding screw assembly 7 includes four locking nuts 71, two locking washers 72 and double-ended studs 73. The two ends of the double-ended studs 73 pass through the right seat hole 621 and the left seat hole 221 respectively and are fixed by the two locking nuts 71. Locking washers 72 are provided between the locking nuts 71 and the right seat hole 621 and the left seat hole 221. The spring seat 5 includes a protective cover 51 and an end face base 52. The side of the protective cover 51 is connected to the outer perimeter of the end face base 52. The side of the end face base 52 located inside the protective cover 51 is connected to one end of the spring 4.

[0072] In application: First, place the two right clamping plates 61 parallel to each other, so that the right through hole 611 is parallel to the push plate 63. Then, connect the left ends of the two right clamping plates 61 together through the push plate 63, ensuring a firm connection. Next, install the right flange 62 on the outside of the right clamping plate 61, so that the right seat hole 621 is perpendicular to the push plate 63. Then, firmly connect the right flange 62 to the right clamping plate 61. Use the double-ended studs 73 and the locking nuts 71 to firmly connect the left flange 22 and the right flange 62 together, so that the left clamping plate bracket 2 and the right clamping plate bracket 6 can slide relative to each other within a certain range. This not only ensures the stability of the vibration damper during vibration, but also effectively prevents loosening and damage between components, improving the reliability of the entire vibration damper. The protective cover 51 can effectively protect the spring 4, preventing it from being interfered with or damaged by external factors during operation, such as dust, rainwater, corrosive gases, etc.

[0073] Example 4:

[0074] Example 4 is basically the same as Example 1, except that:

[0075] The adjusting screw 3 includes a coaxially arranged circular shaft section 31 and push rod 33, as well as a hexagonal section 32. The hexagonal section 32 is located between the circular shaft section 31 and the push rod 33, and the outer side of the circular shaft section 33 is provided with external threads.

[0076] In application: the round shaft section 31 can provide sufficient strength and stability to withstand the force generated during the adjustment process, and the external thread can provide good self-locking performance during the adjustment process to prevent the screw from loosening due to vibration or other reasons.

[0077] The above description is only a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present invention should be included within the scope of protection set forth in the claims.

Claims

1. A suspension bridge cable vibration damping frame with online frequency modulation buffering function, characterized in that: The suspension bridge cable vibration damping frame with online frequency modulation buffer function includes a first fastener (1), a left clamping plate bracket (2), a right clamping plate bracket (6), and a second fastener (10). The first fastener (1) and the second fastener (10) are both clamped with slings (A) on their inner sides. A left clamping bracket (2) is provided between the top and bottom of the inner wall of the first fastener (1). The first fastener (1) and the two left clamping brackets (2) are fixed by multiple sets of first fixing bolt assemblies (8). A right clamping bracket (6) is provided between the top and bottom of the inner wall of the second fastener (10). The second fastener (10) and the two right clamping brackets (6) are fixed by multiple sets of second fixing bolt assemblies (80). The right clamping plate bracket (6) and the left clamping plate bracket (2) are arranged symmetrically; The left clamp bracket (2) includes two left clamps (21), two left flanges (22) and a connecting plate (23). The two left clamps (21) are arranged in parallel, and the end faces of the two left clamps (21) are inserted into the connecting plate (23). The left connecting plate (23) is a rectangular plate. The two sides of the connecting plate (23) are respectively connected to the inner sides of the two left clamps (21). The two left flanges (22) are arranged opposite to each other on the outer sides of the left clamps (21). The right clamp bracket (6) includes two right clamps (61), two right flanges (62) and a push plate (63). Two left clamps (21) are arranged in parallel. The left ends of the two right clamps (61) are connected by the push plate (63). The side of the push plate (63) is connected to one side of the spring seat (5). The other side of the spring seat (5) is connected to one end of the spring (4). The other end of the spring (4) is connected to one end of the adjusting screw (3). The other end of the adjusting screw (3) is inserted into the side of the connecting plate (23). The outer sides of the two right clamps (61) are respectively connected to the outer sides of the two right flanges (62). The two right flanges (62) and the two left flanges (22) are fixed by double-headed studs (73) and locking nuts (71) on multiple sets of sliding screw assemblies (7).

2. The suspension bridge cable vibration damping frame with online frequency modulation buffer function according to claim 1, characterized in that: The first fastener (1) includes two straight segment plates (11) and a semi-circular annular segment plate (12). One end of the two straight segment plates (11) is connected to both ends of the semi-circular annular segment plate (12). Two bolt mounting through holes (13) are provided on the straight segment plates (11). Each set of first fixing bolt assemblies (8) is installed in the corresponding through holes (13).

3. A suspension bridge cable vibration damping frame with online frequency modulation buffering function according to claim 2, characterized in that: The semi-circular annular segment plate (12) of the first fastener (1) is the installation limiting surface surrounding the sling (A), and an annular rubber pad (9) is provided between the semi-circular annular segment plate (12) and the sling (A).

4. A suspension bridge cable vibration damping frame with online frequency modulation buffering function according to claim 2, characterized in that: The first fixing bolt assembly (8) has the same structure as the second fixing bolt assembly (80). The first fixing bolt assembly (8) includes a bolt (81), a washer (82) and a nut (82). The two ends of the bolt (81) pass through the through hole (13) and are fixed by the nut (82). A washer (82) is provided between the nut (82) and the outer side of the fastener (1).

5. A suspension bridge cable vibration damping frame with online frequency modulation buffering function according to claim 1, characterized in that: The left clamping plate (21) has a mounting hole (211) perpendicular to the connecting plate (23) on its side. Bolts (81) pass through the mounting hole (211) and the straight section plate (11) in sequence. The left flange (22) is provided with a plurality of left seat holes (221); The connecting plate (23) has an internal threaded through hole (231) at the center of its side surface, which is parallel to the clamping plate (21). The other end of the adjusting screw (3) is threaded into the internal threaded through hole (231).

6. A suspension bridge cable vibration damping frame with online frequency modulation buffering function according to claim 1, characterized in that: The right clamp (61) has a right through hole (611) parallel to the push plate (63) on its side, and the right flange (62) has a right seat hole (621) perpendicular to the push plate (63) on its side.

7. A suspension bridge cable vibration damping frame with online frequency modulation buffering function according to claim 6, characterized in that: The sliding screw assembly (7) is arranged around the gap area between the left clamping plate bracket (2) and the right clamping plate bracket (6). Each sliding screw assembly (7) includes four locking nuts (71), two locking washers (72) and a double-ended stud (73). The two ends of the double-ended stud (73) pass through the right seat hole (621) and the left seat hole (221) respectively and are fixed by the two locking nuts (71). Locking washers (72) are provided between the locking nuts (71) and the right seat hole (621) and the left seat hole (221).

8. A suspension bridge cable vibration damping frame with online frequency modulation buffering function according to claim 1, characterized in that: The spring seat (5) includes a protective cover (51) and an end face base (52). The side of the protective cover (51) is connected to the outer perimeter of the end face base (52), and the side of the end face base (52) located inside the protective cover (51) is connected to one end of the spring (4).

9. A suspension bridge cable vibration damping frame with online frequency modulation buffering function according to claim 8, characterized in that: The spring (4) is a cylindrical helical compression spring.

10. A suspension bridge cable vibration damping frame with online frequency modulation buffering function according to claim 1, characterized in that: The adjusting screw (3) includes a coaxially arranged round shaft section (31) and push rod (33) as well as a hexagonal section (32). The hexagonal section (32) is located between the round shaft section (31) and the push rod (33), and the outer side of the round shaft section (33) is provided with external threads.

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