Wind resistance damping device with turbulence multi-stage spring

Abstract

The device belongs to wind-resistant damping equipment for high-rise structure, and is characterized by the following technical scheme: an H-shaped frame is composed of a horizontal plate and upper and lower vertical plates; a pulling adjusting mechanism is installed on the H-shaped frame, and is composed of a left shaft seat, a left internal threaded sleeve, a left ring, a non-conductive left rope, a left thrust bearing, a left external threaded shaft, a right shaft seat, a right ring, a right internal threaded sleeve, a right external threaded shaft, a non-conductive right rope; a two-stage damping vibration reduction system is composed of a T-shaped plate, horizontal shafts A and B, vertical shafts A and B, a first-stage spring damping sleeve A, a first-stage spring damping cover plate A, first-stage springs A, B, C and D, guide rail plates A, B, C and D, a second-stage spring damping rod A, a second-stage spring damping sleeve A, second-stage springs A and B, and damping oil; when the device is used for wind-resistant damping of high-rise structure, the lateral dynamic stiffness of the high-rise structure can be changed, and the whole device can rotate 360° around the axis of the non-conductive left and right ropes under the action of natural wind, and the effect of turbulence is good.

Description

Technical Field

[0001] This invention relates to wind-resistant and vibration-damping equipment for tall structures, and mainly to a turbulent multi-stage spring damping wind-resistant and vibration-damping device. Background Technology

[0002] Tall structures can experience resonance and other phenomena under the periodic excitation of natural winds, leading to fatigue failure of local structural components and even lateral overturning of the entire structure, causing huge economic losses and seriously impacting the production and construction of various industries in the country. Currently, wind-induced vibration reduction for tall structures mainly involves installing tuned mass dampers at the connections between internal components or installing spring-mass pendulum systems, while research on external wind-induced vibration reduction is limited. Patents 202221112905.4 and 202210503428.2 respectively introduce a device for suppressing eddy-induced vibration of power towers and its corresponding suppression method. However, since this technology utilizes a steel wire rope connected to a thin plate at three points, relying on the elastic deformation of the steel wire rope and the swaying of the thin plate with the wind to suppress wind-induced vibration of the transmission tower, it suffers from poor device flexibility and uncontrollable damping characteristics. Furthermore, due to the high conductivity of the steel wire rope, the installation conditions are demanding, resulting in low overall operating efficiency and room for improvement. Summary of the Invention

[0003] The purpose of this invention is to address the problems existing in the prior art and, in combination with the actual needs of wind resistance and vibration reduction for tall structures, to design and provide a turbulence-type multi-stage spring damping wind resistance and vibration reduction device, achieving the goals of compact structure, controllable damping characteristics, good turbulence effect, high operating efficiency, and wide applicability.

[0004] The purpose of this invention is achieved as follows: An upper longitudinal plate and a lower longitudinal plate are fixed parallel to each other at the upper and lower ends of a horizontal plate. A left shaft seat is fixed at the middle left side of the horizontal plate. A left external threaded shaft is axially and radially positioned and rotatably mounted on the left shaft seat via a left thrust bearing. A left internal threaded sleeve is screwed onto the outside of the left external threaded shaft. A left ring is fixed on the outer end face of the left internal threaded sleeve. A non-conductive left rope is connected to the left ring in a ring-shaped manner via a ring-clamp structure. Guide rail plates B and D, and guide rail plates A and C are fixed longitudinally and symmetrically on the opposite inner sidewalls of the right sides of the upper and lower longitudinal plates. A T-shaped plate is longitudinally and reciprocally mounted on guide rail plates B and D. At the location between the inner sides of track plate A and guide track plate C, a right axle seat is fixed on the middle right side of the T-shaped plate end plate. A right external threaded shaft is axially and radially positioned and rotatably mounted on the right axle seat via a right thrust bearing. A right internal threaded sleeve is screwed onto the outside of the right external threaded shaft. A right ring is fixed on the outer end face of the right internal threaded sleeve. A non-conductive right rope is connected to the right ring in a ring-shaped manner via a ring-clamp structure. On the right side of the T-shaped plate end plate, at the upper and lower parts of the right axle seat, secondary spring damping rods B and A are fixed longitudinally symmetrically. On the opposite inner walls of the upper and lower longitudinal plates, at the right sides of secondary spring damping rods B and A, secondary spring damping rods are coaxially fixed. Sleeve B and secondary spring damping sleeve A are provided. The secondary spring damping rods B and A are telescopically and sealingly inserted into the cavities of secondary spring damping sleeves B and A, respectively. Secondary spring B and damping oil are respectively disposed within the cavities of secondary spring damping sleeves B and A. Horizontal shafts B and A are symmetrically fixed to the upper and lower longitudinal plates, located between the horizontal plate and the T-shaped plate end plate. Vertical shafts B and A are symmetrically connected to the opposite ends of horizontal shafts B and A via threads. Primary spring damping sleeves B and A are fixed to the upper and lower surfaces of the lower plate of the T-shaped plate, respectively. The first-stage spring damping sleeves B and A are longitudinally movable and respectively fitted onto the outside of the longitudinal shafts B and A. The first-stage spring damping cover plates B and A, each with a longitudinal through hole, are fixedly and sealed onto the outside of the first-stage spring damping sleeves B and A. The transverse shafts B and A are relatively longitudinally movable and respectively inserted into the longitudinal through holes of the first-stage spring damping cover plates B and A. The first-stage spring C and damping oil, the first-stage spring D and damping oil, the first-stage spring A and damping oil, and the first-stage spring B and damping oil are respectively installed in the left and right chambers of the first-stage spring damping sleeves B and A. This constitutes a turbulent multi-stage spring damping wind-resistant and vibration-damping device.

[0005] This invention creates a method for wind-resistant vibration reduction of tall structures. By combining primary and secondary spring damping, the lateral dynamic stiffness of the tall structure can be varied. At the same time, the "H"-shaped frame and "T"-shaped plate, composed of upper and lower longitudinal plates and transverse plates, can rotate 360° synchronously around the non-conductive left and right rope axes under natural wind. It features flexible installation, adjustable damping characteristics, good turbulence effect, high efficiency, compact overall structure, and long service life. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the overall structure of the turbulence-type multi-stage spring damping wind-resistant vibration reduction device;

[0007] Figure 2 yes Figure 1 The right-hand view;

[0008] Figure 3 yes Figure 1 A top-down view;

[0009] Figure 4 yes Figure 3 Sectional view along line A-A.

[0010] Part number description in the image:

[0011] 1. Upper longitudinal plate; 2. Left axle seat; 3. Left internal threaded sleeve; 4. Left ring; 5. Non-conductive left rope; 6. Horizontal plate; 7. Primary spring damping sleeve A; 8. Lower longitudinal plate; 9. Horizontal shaft A; 10. Primary spring damping cover plate A; 11. Guide rail plate A; 12. T-shaped plate; 13. Secondary spring damping rod A; 14. Right internal threaded sleeve; 15. Secondary spring damping sleeve A; 16. Right ring; 17. Non-conductive right rope; 18. Secondary spring damping sleeve B; 19. Secondary spring damping rod B; 20. 21. Right shaft seat, 22. Guide rail plate B, 23. First-stage spring damping cover plate B, 24. Horizontal shaft B, 25. First-stage spring damping sleeve B, 26. Guide rail plate C, 27. Guide rail plate D, 28. Left thrust bearing, 29. First-stage spring A, 30. Longitudinal shaft A, 31. First-stage spring B, 32. Second-stage spring A, 33. Right external threaded shaft, 34. Second-stage spring B, 35. Right thrust bearing, 36. First-stage spring D, 37. Longitudinal shaft B, 38. First-stage spring C, 39. Left external threaded shaft. Detailed Implementation

[0012] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. A turbulence-type multi-stage spring damping wind-resistant vibration reduction device comprises an upper longitudinal plate 1 and a lower longitudinal plate 8, which are fixed parallel to each other at the upper and lower ends of a horizontal plate 6. A left shaft seat 2 is fixed on the middle left side of the horizontal plate 6. A left external threaded shaft 38 is axially and radially positioned and rotatably mounted on the left shaft seat 2 via a left thrust bearing 27. A left internal threaded sleeve 3 is screwed onto the outside of the left external threaded shaft 38. A left ring 4 is fixed on the outer end face of the left internal threaded sleeve 3. A non-conductive left rope 5 is connected to the left ring 4 in a ring-shaped manner via a ring-clamp structure. Guide rail plates B 21, D 26, A 11, and C 25 are fixed longitudinally and symmetrically on the opposite inner wall surfaces on the right sides of the upper and lower longitudinal plates 1 and 8, respectively. A T-shaped plate 12 is longitudinally and reciprocally mounted on guide rail plates B 21, D 26, A 11, and C 25. At the location between the inner sides of the T-shaped plate 12, a right shaft seat 20 is fixedly installed on the middle right side of the end plate. A right external threaded shaft 32 is axially and radially positioned and rotatably mounted on the right shaft seat 20 via a right thrust bearing 34. A right internal threaded sleeve 14 is screwed onto the outside of the right external threaded shaft 32. A right ring 16 is fixedly installed on the outer end face of the right internal threaded sleeve 14. A non-conductive right rope 17 is connected to the right ring 16 in a ring-shaped connection via a buckle structure. On the right side of the end plate of the T-shaped plate 12, at the upper and lower parts of the right shaft seat 20, secondary spring damping rods B 19 and A 13 are fixedly fixed longitudinally and symmetrically. On the opposite inner wall surfaces of the upper and lower longitudinal plates 1 and 8, at the right side of the secondary spring damping rods B 19 and A 13, secondary spring damping sleeves B 18 and A 15 are fixedly fixed coaxially. 19 and the secondary spring damping rod A 13 are telescopically movable and sealedly inserted into the cavities of the secondary spring damping sleeve B 18 and the secondary spring damping sleeve A 15, respectively. The cavities of the secondary spring damping sleeve B 18 and the secondary spring damping sleeve A 15 are respectively equipped with secondary spring B 33 and damping oil and secondary spring A 31 and damping oil.Horizontal shafts B23 and A9 are symmetrically fixed on the upper longitudinal plate 1 and lower longitudinal plate 8, located between the horizontal plate 6 and the end plate of the T-shaped plate 12. Vertical shafts B36 and A29 are symmetrically connected and installed on the opposite ends of horizontal shafts B23 and A9 via threads. First-stage spring damping sleeves B24 and A7 are fixed on the upper and lower surfaces of the lower plate of the T-shaped plate 12, respectively. The first-stage spring damping sleeves B24 and A7 are longitudinally movable and fitted onto the exterior of the vertical shafts B36 and A29. First-stage spring damping cover plates B22 and A10, each with a longitudinal through hole, are fixedly and tightly sealed onto the exterior of the first-stage spring damping sleeves B24 and A7. The horizontal shafts B23 and A29 are... 9 can be relatively longitudinally moved and inserted into the longitudinal through holes of the primary spring damping cover plate B 22 and the primary spring damping cover plate A 10 respectively. Primary spring C (37) and damping oil, and primary spring D (35) and damping oil are respectively installed in the left and right chambers of the primary spring damping sleeve B (24); primary spring A (28) and damping oil, and primary spring B (30) and damping oil are respectively installed in the left and right chambers of the primary spring damping sleeve A (7).

[0013] During operation, the free ends of the non-conductive left rope 5 and the non-conductive right rope 17 are connected to two points at a certain distance along the height of the side of the tall structure. The tension is adjusted by rotating the left and right internal thread sleeves 3 and 14 on the left and right external thread shafts 38 and 32, respectively. The compression of the first-stage spring A 28, the first-stage spring B 30, the second-stage spring A 31, and the second-stage spring B 33 is also adjusted. Δ 1 and Δ 2. The overall dynamic damping characteristics of the control device. At the same time, the "H"-shaped frame and T-shaped plate 12, composed of the upper and lower longitudinal plates 1 and 8 and the transverse plate 6, can rotate 360° around the axis of the non-conductive left rope 5 and the non-conductive right rope 17 under the action of natural wind, thereby changing the windward angle and wind load intensity of the side of the tall structure, preventing the natural wind from resonating with the tall structure, and achieving the purpose of wind resistance and vibration reduction.

Claims

1. A turbulence-type multi-stage spring damping wind-resistant vibration reduction device, characterized in that: Upper longitudinal plate (1) and lower longitudinal plate (8) are fixed parallel to each other at the upper and lower ends of the horizontal plate (6). A left shaft seat (2) is fixed at the middle part of the left side of the horizontal plate (6). A left external threaded shaft (38) is axially and radially positioned and circumferentially rotatable on the left shaft seat (2) through a left thrust bearing (27). A left internal threaded sleeve (3) is screwed onto the outside of the left external threaded shaft (38). A left ring (4) is fixed on the outer end face of the left internal threaded sleeve (3). A non-conductive left rope (5) is connected to the left ring (4) in a ring shape through a ring buckle structure. On the right side of the upper longitudinal plate (1) and lower longitudinal plate (8) Guide rail plates B (21), D (26), A (11), and C (25) are fixedly mounted longitudinally and symmetrically on the inner sidewalls of the opposite sides. A T-shaped plate (12) is longitudinally reciprocatingly mounted between the inner sides of guide rail plates B (21), D (26) and A (11), C (25). A right shaft seat (20) is fixedly mounted on the middle part of the right side of the end plate of the T-shaped plate (12). The right shaft seat (20) is axially and radially positioned and circumferentially rotatable by a right thrust bearing (34). The right external threaded shaft (32) is dynamically installed, and the right internal threaded sleeve (14) is screwed onto the outside of the right external threaded shaft (32). A right ring (16) is fixed on the outer end face of the right internal threaded sleeve (14). The non-conductive right rope (17) is connected to the right ring (16) in a ring shape through a ring buckle structure. On the right side of the end plate of the T-shaped plate (12), at the upper and lower parts of the right shaft seat (20), the secondary spring damping rod B (19) and the secondary spring damping rod A (13) are fixed longitudinally and symmetrically to each other. On the inner side wall of the upper longitudinal plate (1) and the lower longitudinal plate (8), at the secondary spring damping rod Secondary spring damping sleeves B (18) and A (15) are coaxially fixed at the right side of B (19) and A (13). The secondary spring damping rods B (19) and A (13) are telescopically movable and sealedly inserted into the cavities of the secondary spring damping sleeves B (18) and A (15). Secondary springs B (33) and A (31) and damping oil are respectively disposed in the cavities of the secondary spring damping sleeves B (18) and A (15).On the upper longitudinal plate (1) and lower longitudinal plate (8), at the location between the horizontal plate (6) and the end plate of the T-shaped plate (12), horizontal shafts B (23) and A (9) are respectively fixed symmetrically. On the opposite ends of horizontal shafts B (23) and A (9), vertical shafts B (36) and A (29) are respectively connected symmetrically by threads. On the upper and lower surfaces of the lower plate of the T-shaped plate (12), first-stage spring damping sleeves B (24) and A (7) are respectively fixed. The first-stage spring damping sleeves B (24) and A (7) are respectively sleeved on the outside of the vertical shafts B (36) and A (29) in a longitudinally movable manner. Damping cover plate B (22) and primary spring damping cover plate A (10) are respectively fixedly and sealed on the outside of primary spring damping sleeve B (24) and primary spring damping sleeve A (7). The transverse shaft B (23) and transverse shaft A (9) are respectively inserted into the longitudinal through holes of primary spring damping cover plate B (22) and primary spring damping cover plate A (10) with relative longitudinal movement. Primary spring C (37) and damping oil and primary spring D (35) and damping oil are respectively installed in the left and right chambers of primary spring damping sleeve B (24); primary spring A (28) and damping oil and primary spring B (30) and damping oil are respectively installed in the left and right chambers of primary spring damping sleeve A (7).

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