An adjustable stiffness wind resistant support

Abstract

This invention provides an adjustable stiffness wind-resistant bearing, relating to the technical field of wind-resistant bearings. The adjustable stiffness wind-resistant bearing includes a left side plate, a spherical cap liner, an intermediate body, a helical height adjustment component, a right side plate, and a counterweight assembly. The plane of the spherical cap liner is connected to the left side plate, and the spherical surface of the spherical cap liner is connected to the intermediate body. The intermediate body is provided with a slide rail and a male helical surface. The helical height adjustment component is provided with a female helical surface, and the male helical surface is adapted to the female helical surface. The right side plate is provided with a slide groove, which is adapted to and connected to the slide rail. The counterweight assembly includes a wire rope, a counterweight tray, and a counterweight block. One end of the wire rope is connected to the helical height adjustment component, and the other end is connected to the counterweight tray, passing through the right side plate. The counterweight block is installed on the counterweight tray. This adjustable stiffness wind-resistant bearing solves the technical problems of existing wind-resistant bearings, such as non-adjustable compressive stiffness, limited compressive stiffness design range, and the elastic element being in a compressed state for a long time, leading to easy elastic failure.

Description

Technical Field

[0001] This invention relates to the technical field of wind-resistant bearings, and in particular to an adjustable stiffness wind-resistant bearing. Background Technology

[0002] Wind-resistant bearings are specialized bearing devices that bear and resist lateral forces such as transverse (horizontal) wind loads, seismic horizontal forces, and traction forces on a structure. They are widely used in bridge construction.

[0003] Existing wind-resistant bearings include a left side plate, a right side plate, and an elastic element. The left and right side plates are connected to the beam and the tower side bearing pad, respectively. The elastic element is positioned between the left and right side plates and is typically composed of multiple stacked disc springs (connected in series, parallel, or a combination thereof), along with guide sleeves or limiting sleeves to prevent lateral displacement of the disc springs. When lateral wind loads act on the bridge, the beam transmits the lateral force to the disc springs through the side plates, forcing the disc springs to undergo elastic deformation. During the deformation process, the springs' elastic potential energy and inter-plate frictional energy are converted into each other, consuming the vibration energy generated by the wind load and achieving a buffering and vibration reduction effect, thus weakening the impact of the wind load on the main bridge structure. However, this type of wind-resistant bearing provides non-adjustable compressive stiffness, and the elastic element may fail due to prolonged compression.

[0004] In the process of implementing this embodiment, the inventors discovered at least the following problems: Existing wind-resistant supports offer non-adjustable compressive stiffness, have a limited design range for compressive stiffness, and their elastic elements are prone to failure due to prolonged compression. Summary of the Invention

[0005] The purpose of this invention is to provide an adjustable stiffness wind-resistant bearing, which solves the technical problems of existing wind-resistant bearings, such as the inability to adjust the compressive stiffness, the limited range of compressive stiffness design, and the tendency for elastic elements to fail due to prolonged compression.

[0006] Invention solution: This invention provides an adjustable stiffness wind-resistant bearing, comprising a left side plate, a spherical cap liner, an intermediate body, a helical height adjusting component, a right side plate, and a counterweight assembly; the plane of the spherical cap liner is connected to the left side plate, and the spherical surface of the spherical cap liner is connected to the intermediate body; the intermediate body is provided with a slide rail and a male helical surface; the helical height adjusting component is provided with a female helical surface, and the male helical surface is adapted to the female helical surface; the right side plate is provided with a sliding groove, and the sliding groove is adapted to and connected to the slide rail; the counterweight assembly includes a wire rope, a counterweight tray, and a counterweight block; one end of the wire rope is connected to the helical height adjusting component, and the other end is connected to the counterweight tray, and it passes through the right side plate; the counterweight block is installed on the counterweight tray.

[0007] Furthermore, the spiral height adjusting component is provided with a locking element and a rope groove; the locking element is connected to the wire rope, and the rope groove is adapted to be connected to the wire rope.

[0008] Furthermore, the right side plate is provided with a first rotating shaft protrusion, and the intermediate body is provided with a second rotating shaft protrusion; the spiral height adjusting component is provided with a rotating shaft hole, one end of which is connected to the first rotating shaft protrusion, and the other end of which is connected to the second rotating shaft protrusion.

[0009] Furthermore, the mother spiral surface is provided with a stainless steel plate, which is connected to the intermediate body.

[0010] Furthermore, the right side plate is provided with a stop block, and the stop block is detachably connected to a tightening bolt; the intermediate body is provided with a shoulder; the tightening bolt can abut against the shoulder.

[0011] Furthermore, the spherical crown liner is connected to a polymer wear-resistant plate, which is located on the flat side and the spherical side of the spherical crown liner respectively.

[0012] Furthermore, the spherical crown liner is connected to a clamping bolt, which is connected to the intermediate body.

[0013] Beneficial Effects: This invention provides an adjustable stiffness wind-resistant bearing. Through the cooperation of a counterweight assembly and a spiral height adjustment component, utilizing the principle of spiral transmission, the tension of the steel wire rope on the spiral height adjustment component can be adjusted by increasing or decreasing the number or weight of the counterweight blocks. This, in turn, changes the contact pressure between the male and female spiral surfaces, thereby altering the pressure between the left and right side plates. This achieves precise adjustment of the compressive stiffness, adapting to the actual working conditions of bridges with different wind environments and spans, and solving the defect of non-adjustable compressive stiffness in existing wind-resistant bearings. Simultaneously, this invention abandons the traditional method of relying on elastic elements such as disc springs to provide resistance. Instead, it uses a counterweight assembly to provide continuous and stable pressure, avoiding fatigue aging and elasticity failure problems caused by long-term compression of elastic elements. This significantly extends the service life of the bearing and reduces maintenance costs. Therefore, this adjustable stiffness wind-resistant bearing provides adjustable compressive stiffness, and the compressive stiffness is not easily damaged. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1This is a plan view of the adjustable stiffness wind-resistant support provided in this embodiment; Figure 2 This is a cross-sectional view of the adjustable stiffness wind-resistant support provided in this embodiment; Figure 3 A cross-sectional view of the adjustable stiffness wind-resistant support portion provided in this embodiment; Figure 4 A cross-sectional view of the adjustable stiffness wind-resistant support portion provided in this embodiment; Figure 5 This is a structural schematic diagram of the adjustable stiffness wind-resistant support provided in this embodiment.

[0016] icon: 1-Left side panel; 2-Spherical crown liner; 21-High polymer wear-resistant plate; 22-Clamping bolt.

[0017] 3-Intermediate body; 31-Slide rail; 32-Male helical surface; 33-Second shaft protrusion; 34-Shoulder; 4-Helix height adjusting component; 41-Female helix surface; 42-Locking component; 43-Rope groove; 44-Shaft hole; 45-Stainless steel plate; 5-Right side plate; 51-Slide groove; 52-First rotating shaft protrusion; 53-Stop block; 54-Tightening bolt; 6-Counterweight assembly; 61-Wire rope; 62-Counterweight tray; 63-Counterweight block. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this 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, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0025] This embodiment provides an adjustable stiffness wind-resistant bearing. Please refer to [reference needed]. Figure 1-5 As shown, the assembly includes a left side plate 1, a spherical crown liner 2, an intermediate body 3, a spiral height adjusting component 4, a right side plate 5, and a counterweight assembly 6. The plane of the spherical crown liner 2 is connected to the left side plate 1, and the spherical surface of the spherical crown liner 2 is connected to the intermediate body 3. The intermediate body 3 is provided with a slide rail 31 and a male spiral surface 32. The spiral height adjusting component 4 is provided with a female spiral surface 41, and the male spiral surface 32 is adapted to the female spiral surface 41. The right side plate 5 is provided with a slide groove 51, which is adapted to and connected to the slide rail 31. The counterweight assembly 6 includes a wire rope 61, a counterweight tray 62, and a counterweight block 63. One end of the wire rope 61 is connected to the spiral height adjusting component 4, and the other end is connected to the counterweight tray 62, and it passes through the right side plate 5. The counterweight block 63 is installed on the counterweight tray 62.

[0026] Specifically, the left side plate 1 can be bolted to the beam, and the right side plate 5 can be bolted to the tower side pad. The left side plate 1 and the right side plate 5 can also be interchanged and placed between the beam and the tower side pad. The left side plate 1 and the right side plate 5 are made of high-strength steel. The right side plate 5's slide groove 51 is adapted to the intermediate body 3's slide rail 31, so that the intermediate body 3 can only move along the slide groove 51. The spherical crown liner 2 is used to achieve uniform force transmission, omnidirectional rotation, and displacement compensation. When the spiral height adjusting component 4 is subjected to the tension of the wire rope 61, it rotates within the right side plate 5, thereby causing the female spiral surface 41 to rotate. The female spiral surface 41 spins the male spiral surface 32, causing the intermediate body 3 to press the spherical crown. Crown liner 2 and spherical crown liner 2 press down on left side plate 1, thereby creating stable lateral pressure on the beam and tower side pad stone by left side plate 1 and right side plate 5; counterweight assembly 6 is used to provide tension to spiral height adjustment component 4. The wire rope 61 is made of high-strength galvanized steel wire rope 61, which has excellent tensile strength and corrosion resistance. One end of the rope is fixedly connected to spiral height adjustment component 4, and the other end passes through the pre-set through hole on right side plate 5 and is fixedly connected to counterweight tray 62. Counterweight block 63 is made of cast iron. The number of counterweight blocks 63 can be increased or decreased or different weights of counterweight blocks 63 can be replaced according to actual working conditions, thereby adjusting the tension on spiral height adjustment component 4.

[0027] In this embodiment, the spiral height adjusting component 4 is provided with a locking component 42 and a rope groove 43; the locking component 42 is connected to the wire rope 61, and the rope groove 43 is adapted to be connected to the wire rope 61.

[0028] Specifically, the locking member 42 is used to fix the wire rope 61 on the spiral height adjusting member 4 to prevent the wire rope 61 from loosening. The rope groove 43 is adapted to the wire rope 61 and plays a limiting role for the wire rope 61, so as to prevent the wire rope 61 from deviating or wearing during the stress process and to ensure transmission stability.

[0029] In this embodiment, the right side plate 5 is provided with a first rotating shaft protrusion 52, and the intermediate body 3 is provided with a second rotating shaft protrusion 33; the spiral height adjustment component 4 is provided with a rotating shaft hole 44, one end of the rotating shaft hole 44 is connected to the first rotating shaft protrusion 52, and the other end is connected to the second rotating shaft protrusion 33.

[0030] Specifically, the two ends of the rotating shaft hole 44 are engaged with the first rotating shaft protrusion 52 and the second rotating shaft protrusion 33, so that the spiral height adjustment component 4 can rotate flexibly around the rotating shaft protrusion, ensuring the precise fit and relative movement of the male spiral surface 32 and the female spiral surface 41, and improving the smoothness and accuracy of adjustment.

[0031] In this embodiment, the mother spiral surface 41 is provided with a stainless steel plate 45, and the stainless steel plate 45 is connected to the intermediate body 3.

[0032] Specifically, the stainless steel plate 45 has excellent wear resistance and corrosion resistance, which can reduce frictional loss between the male spiral surface 32 and the female spiral surface 41, extend the service life of the spiral drive structure, improve transmission efficiency, and ensure stable and reliable adjustment process. The stainless steel plate 45 is coated with silicone grease to ensure lubrication.

[0033] In this embodiment, the right side plate 5 is provided with a stop block 53, and the stop block 53 is detachably connected with a tightening bolt 54; the intermediate body 3 is provided with a shoulder 34; the tightening bolt 54 can abut against the shoulder 34.

[0034] Specifically, tightening the top bolt 54 on the stop 53 to make it abut against the shoulder 34 can fix the position of the intermediate body 3, prevent it from excessive displacement under lateral load, play a limiting protection role, and facilitate disassembly and adjustment later.

[0035] In this embodiment, the spherical crown liner 2 is connected to a polymer wear-resistant plate 21, which is located on the flat side and the spherical side of the spherical crown liner 2.

[0036] Specifically, the high-molecular wear-resistant plate 21 is made of modified ultra-high molecular weight polyethylene, which has an extremely low coefficient of friction and excellent wear resistance. It can reduce the frictional loss between the spherical crown liner 2 and the left side plate 1 and the intermediate body 3, improve the rotation flexibility and service life of the support, and at the same time play a role in buffering and noise reduction.

[0037] In this embodiment, the spherical crown liner 2 is connected to a clamping bolt 22, which is connected to the intermediate body 3.

[0038] Specifically, the clamping bolt 22 is connected to the intermediate body 3 to clamp and fix the spherical surface of the spherical crown liner 2 to the intermediate body 3, preventing the spherical crown liner 2 from falling off.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adjustable stiffness wind-resistant bearing, characterized in that, It includes a left side plate (1), a spherical crown liner (2), an intermediate body (3), a spiral height adjustment component (4), a right side plate (5), and a counterweight assembly (6); The plane of the spherical crown liner (2) is connected to the left side plate (1), and the spherical surface of the spherical crown liner (2) is connected to the intermediate body (3); The intermediate body (3) is provided with a slide rail (31) and a male spiral surface (32); The spiral height adjusting component (4) is provided with a female spiral surface (41), and the male spiral surface (32) is adapted to the female spiral surface (41); The right side plate (5) is provided with a slide groove (51), which is adapted to be connected to the slide rail (31); The counterweight assembly (6) includes a wire rope (61), a counterweight tray (62), and a counterweight block (63). One end of the wire rope (61) is connected to the spiral height adjustment component (4), and the other end is connected to the counterweight tray (62), and it passes through the right side plate (5). The counterweight (63) is installed on the counterweight tray (62).

2. The adjustable stiffness wind-resistant bearing according to claim 1, characterized in that, The spiral height adjusting component (4) is provided with a locking component (42) and a rope groove (43); The locking member (42) is connected to the wire rope (61), and the rope groove (43) is adapted to be connected to the wire rope (61).

3. The adjustable stiffness wind-resistant bearing according to claim 2, characterized in that, The right side plate (5) is provided with a first rotating shaft protrusion (52), and the intermediate body (3) is provided with a second rotating shaft protrusion (33). The spiral height adjusting component (4) is provided with a rotating shaft hole (44), one end of which is connected to the first rotating shaft protrusion (52), and the other end is connected to the second rotating shaft protrusion (33).

4. The adjustable stiffness wind-resistant bearing according to claim 3, characterized in that, The mother spiral surface (41) is provided with a stainless steel plate (45), and the stainless steel plate (45) is connected to the intermediate body (3).

5. The adjustable stiffness wind-resistant bearing according to claim 4, characterized in that, The right side plate (5) is provided with a stop block (53), and the stop block (53) is detachably connected with a tightening bolt (54). The intermediate body (3) is provided with a shoulder (34); The tightening bolt (54) can abut against the shoulder (34).

6. The adjustable stiffness wind-resistant bearing according to claim 5, characterized in that, The spherical crown liner (2) is connected to a polymer wear-resistant plate (21), which is located on the flat side and the spherical side of the spherical crown liner (2).

7. An adjustable stiffness wind-resistant bearing according to claim 6, characterized in that, The spherical crown liner (2) is connected to a clamping bolt (22), which is connected to the intermediate body (3).

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