A damping component and a sector damper with valve control
By designing a concentric nested structure of an arc-shaped piston and cylinder and a valve control mechanism, the problems of nonlinear change in damping force and fluid temperature rise in traditional sector-shaped dampers under extreme conditions are solved. This achieves stable and efficient energy dissipation of the damper under complex conditions, enhancing the reliability and stability of the damper.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN UNIV
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-30
AI Technical Summary
Traditional sector dampers experience nonlinear abrupt changes in damping force under extreme conditions, leading to reduced energy efficiency. The lack of an effective oil circuit regulation mechanism results in increased fluid temperature, deterioration of damping medium performance, and even failure.
Design a damping assembly comprising an arc-shaped piston and an arc-shaped cylinder, employing a concentric nested structure and a valve control mechanism. It dissipates energy through viscous resistance generated by the fluid medium, and achieves automatic adjustment by combining a pressure sensor and a controller to balance internal pressure and temperature and adapt to multi-frequency vibration.
Achieving stable control of damping performance under extreme operating conditions improves the energy dissipation efficiency of the damper, enhances stable control, improves the energy dissipation efficiency of the damper, enhances the energy dissipation efficiency of the damper, enhances the energy dissipation efficiency of the damper, enhances the energy dissipation efficiency of the damper, and significantly reduces the risk of damper failure.
Smart Images
Figure CN224433234U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a damper, and more particularly to a damping component and a sector-shaped damper with valve control, belonging to the field of damper technology. Background Technology
[0002] In the field of vibration control for building structures and mechanical systems, dampers, as key vibration reduction and energy dissipation devices, play a crucial role in absorbing and dissipating external excitation energy. Traditional sector dampers dissipate energy through the viscous resistance of the fluid damping medium. Under wind loads or conventional vibrations, they can provide a certain damping force to the system, maintaining the stability and normal use of the structure.
[0003] However, when encountering extreme conditions such as strong earthquakes and impact loads, the external energy input increases dramatically, revealing significant performance shortcomings in traditional sector dampers. On the one hand, the internal fluid experiences nonlinear abrupt changes in damping force under high velocity and pressure, making it difficult to achieve stable control of damping performance and leading to reduced energy dissipation efficiency. On the other hand, the lack of an effective oil circuit regulation mechanism causes internal pressure imbalance and a sharp rise in fluid temperature after continuous high-intensity operation, resulting in performance degradation of the damping medium and even damper failure. Utility Model Content
[0004] In order to overcome the shortcomings of the prior art, this utility model provides a damping component and a sector damper with valve control.
[0005] The technical solution adopted in this utility model is as follows: a damping component is designed, comprising an arc-shaped piston and an arc-shaped cylinder. The arc-shaped piston is inserted into the arc-shaped cylinder, and the two are slidably connected. A fluid damping medium is filled between the arc-shaped piston and the arc-shaped cylinder. This damping component has a compact structure, is flexible in installation, and is particularly suitable for confined spaces. The arc-shaped structure naturally conforms to the motion trajectory of rotating or oscillating mechanisms, eliminating the need for additional motion conversion mechanisms, reducing energy loss and mechanical complexity. When the fluid medium (such as silicone oil) passes through the gap between the piston and the cylinder, it generates viscous resistance, converting kinetic energy into heat energy for dissipation; effectively suppressing vibration amplitude; and having a fast response speed, adapting to low-frequency to high-frequency vibrations.
[0006] Furthermore, the damping assembly of this design includes a first arc-shaped damping component and a second arc-shaped damping component. The first arc-shaped damping component includes a first arc-shaped piston and a first arc-shaped cylinder. The first arc-shaped piston is slidably connected to the first arc-shaped cylinder, and a fluid damping medium is filled between the first arc-shaped piston and the first arc-shaped cylinder. The second arc-shaped damping component includes a second arc-shaped piston and a second arc-shaped cylinder. The second arc-shaped piston is slidably connected to the second arc-shaped cylinder, and a fluid damping medium is filled between the second arc-shaped piston and the second arc-shaped cylinder. The first and second arc-shaped damping components are concentrically arranged. The structural design of the double-arc concentric fluid damping assembly combines the adaptability of arc motion with the characteristics of fluid damping. The dual-stage damping synergistically enhances efficiency. The inner and outer arc-shaped damping components can be adjusted for different amplitude ranges (e.g., the inner ring handles high-frequency micro-amplitude vibrations, while the outer ring suppresses large-amplitude oscillations). The fluid medium (such as silicone oil) generates viscous resistance when passing through the piston gap, improving the energy consumption efficiency of the dual-stage synergy. The concentric nested design significantly saves radial space. The damping force output is stable, reducing damage to the structure from sudden impact forces.
[0007] Furthermore, this design also includes supports. The adjacent ends of the first and second arc-shaped damping components are connected via the same support, resulting in strong integration, modular installation, improved installation efficiency, and easier replacement and maintenance. The two ends of the first and second arc-shaped damping components are hinged to their corresponding supports. With the addition of the support hinge structure, the dual arc-shaped damping components achieve coordinated force transmission through a shared support, improving system integration while introducing new mechanical properties. The support hinge creates a closed force system for the dual arc-shaped dampers, effectively releasing internal stresses caused by temperature deformation and installation errors, avoiding uneven wear or jamming of the arc-shaped piston due to excessive constraint, and extending service life. The hinge design allows the arc-shaped damping components to rotate, adapting to structural deformation under complex working conditions.
[0008] Furthermore, two pairs of support plates are respectively provided at both ends of the support, and round head plates are respectively provided at both ends of the first arc-shaped damping component and the second arc-shaped damping component. Corresponding hinge holes are provided on the support plates and the round head plates. The round head plates are locked between the two pairs of support plates and a pin passes through the hinge hole to form a hinge, which is simple and convenient to connect.
[0009] This invention also provides a sector-shaped damper with valve control, comprising the aforementioned damping components, a regulating valve, and a delivery pipe. Both the first and second arc-shaped pistons are tubular structures with closed outer ends. At least one adjacent end of the first and second arc-shaped damping components is connected via the delivery pipe, on which a regulating valve is installed. By adding a fluid communication design between the regulating valve and the delivery pipe, the dual arc-shaped damping components form an adjustable linkage system. By controlling the fluid exchange rate within the delivery pipe through the regulating valve, the synergistic effect of the inner and outer arc-shaped dampers can be adjusted in real time: during low-frequency vibration, the valve is closed, allowing the dual dampers to work independently, improving the small-amplitude response accuracy (sensitivity improvement); during large-amplitude vibration, the valve is opened, and fluid communication forms a combined damping cavity, increasing maximum energy dissipation efficiency. Dual-cavity fluid communication can balance viscosity differences caused by localized temperature rises (such as frictional heat), preventing unilateral damping force attenuation. If a unilateral seal fails, causing media leakage, the regulating valve can cut off the connecting pipe, preserving the damping function on the other side, enhancing fault redundancy.
[0010] Furthermore, the damper also includes pressure sensors and a controller. The pressure sensors are respectively installed on the first and second arc-shaped damping components. The regulating valve is an electric valve, and the pressure sensors and the regulating valve are electrically connected to the controller. Automatic adjustment is achieved through the settings of the pressure sensors and the controller.
[0011] Furthermore, both the first and second arc-shaped damping components are right-angled arcs. Right-angled arcs can closely fit right-angle corners, improving space utilization and making them particularly suitable for direct embedding in right-angle constraint scenarios such as building corners.
[0012] Furthermore, a boss is provided on the support, and the regulating valve is fixed on the boss to facilitate the installation and fixation of the regulating valve. The pistons of the first arc-shaped damping component and the second arc-shaped damping component are arranged in opposite positions to the cylinder body.
[0013] Furthermore, the sector-shaped damper is installed at the connection node between the beam and the column, with one support mounted on the beam and the other on the column. This embedded installation utilizes the existing beam-column joint space, saving structural space; it is particularly suitable for confined space scenarios such as steel structure factories and antique-style buildings.
[0014] Furthermore, the support is cast onto the beam or column, or a connection hole is provided on the support, and it is fixed to the beam or column by bolts to ensure reliable fixation.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] (1) This utility model adopts valve control. When encountering extreme working conditions such as strong earthquakes and impact loads, and the external input energy increases sharply, the valve can be opened to avoid nonlinear change of damping force in the fluid inside the arc-shaped damping component under high flow rate and high pressure, thereby achieving stable control of damping performance and effectively improving the energy consumption efficiency of the damper under complex working conditions. Furthermore, the valve opening can be determined according to the sudden change of the internal fluid caused by external impact, making the entire balancing process more suitable and gentle.
[0017] (2) This utility model has an effective oil circuit regulation mechanism. By controlling the internal pressure distribution of the damper through the valve, the internal pressure can be balanced when the damper is working continuously at high intensity, suppressing the rapid rise in fluid temperature, preventing the performance degradation of the damping medium, significantly enhancing the stability and reliability of the damper, and reducing the risk of damper failure. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic side view of the installation of this utility model.
[0020] Figure 2 This is a schematic diagram of the installation of this utility model using isometric projection.
[0021] In the figure: 1. First arc-shaped damping component; 2. Second arc-shaped damping component; 3. First arc-shaped piston; 4. First arc-shaped cylinder; 5. Second arc-shaped piston; 6. Second arc-shaped cylinder; 7. Support; 8. Support plate; 9. Round head plate; 10. Regulating valve; 11. Conveying pipe; 12. Boss; 13. Crossbeam; 14. Column. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.
[0024] Example 1
[0025] like Figure 1 and Figure 2 As shown, this embodiment provides a damping assembly, which includes an arc-shaped piston and an arc-shaped cylinder. The arc-shaped piston is inserted into the arc-shaped cylinder, and the two are slidably connected. A sealing structure such as a sealing ring (not shown in the figure) can be provided at the connection point. A fluid damping medium is filled between the arc-shaped piston and the arc-shaped cylinder. It also includes a support 7, and the ends of the arc-shaped piston and the arc-shaped cylinder that are far apart from each other are respectively provided with the support 7, and are respectively hinged to (or fixedly connected to) the corresponding support 7.
[0026] Example 2
[0027] This embodiment further refines and improves upon the damping component provided in Embodiment 1. The damping component described in this embodiment includes a first arc-shaped damping component 1 and a second arc-shaped damping component 2. The first arc-shaped damping component 1 includes a first arc-shaped piston 3 and a first arc-shaped cylinder 4. The first arc-shaped piston 3 is slidably connected within the first arc-shaped cylinder 4, and a fluid damping medium is filled between the first arc-shaped piston 3 and the first arc-shaped cylinder 4. The second arc-shaped damping component 2 includes a second arc-shaped piston 5 and a second arc-shaped cylinder 6. The second arc-shaped piston 5 is slidably connected within the second arc-shaped cylinder 6, and a fluid damping medium is filled between the second arc-shaped piston 5 and the second arc-shaped cylinder 6. The first arc-shaped damping component 1 and the second arc-shaped damping component 2 are concentrically arranged. Preferably, in the above structural configuration, silicone oils with different viscosity indices can be used for the first arc-shaped damping component 1 and the second arc-shaped damping component 2; for example, a low-viscosity inner layer can handle high frequencies, while a high-viscosity outer layer can suppress large-amplitude vibrations.
[0028] This embodiment also includes a support 7. The adjacent ends of the first arc-shaped damping component 1 and the second arc-shaped damping component 2 are respectively connected through the same support 7. The two ends of the first arc-shaped damping component 1 and the second arc-shaped damping component 2 are respectively hinged to the corresponding support 7.
[0029] One specific structural arrangement of the hinge is as follows: two pairs of support plates 8 are respectively provided at both ends of the support 7, and round-head plates 9 are respectively provided at both ends of the first arc-shaped damping component 1 and the second arc-shaped damping component 2. Corresponding hinge holes are provided on the support plates 8 and the round-head plates 9. The round-head plates 9 are engaged between the two pairs of support plates 8 and a pin (not shown in the figure) passes through the hinge hole to form a hinge. A more preferred solution is to use a detachable pin, such as a screw structure, to facilitate the disassembly and maintenance of the arc-shaped damping component.
[0030] Example 3
[0031] This embodiment provides a sector-shaped damper with valve control, which includes the damping component described in Embodiment 2, and further includes a regulating valve 10 and a delivery pipe 11. The first arc-shaped piston 3 and the second arc-shaped piston 5 are both tubular structures with closed outer ends. At least one adjacent end of the first arc-shaped damping component 1 and the second arc-shaped damping component 2 is connected through the delivery pipe 11 (the first arc-shaped damping component 1 and the second arc-shaped damping component 2 can be connected at only one end, or both ends can be connected separately and each is equipped with a regulating valve 10). The regulating valve 10 is provided on the delivery pipe 11. A boss 12 is provided on the support 7, and the regulating valve 10 can be fixed to the boss 12. The first arc-shaped damping component 1 and the second arc-shaped damping component 2 are arranged in opposite directions. The delivery pipe 11 is preferably a flexible metal hose.
[0032] This embodiment also includes pressure sensors and a controller (not shown in the accompanying drawings; conventional installation and setup using existing technology is sufficient). Pressure sensors are respectively installed on the first arc-shaped damping component 1 and the second arc-shaped damping component 2 to monitor pressure changes in the fluid inside them (temperature sensors can also be installed to monitor temperature changes). The regulating valve 10 is an electric valve, and the pressure sensors and regulating valve 10 are electrically connected to the controller. The controller can be, for example, a PLC controller, with preset damper pressure data ranges and adjustment mechanisms. The controller receives monitoring data from the pressure sensors and compares it; if the data exceeds the preset range, it controls the regulating valve 10 to open to balance pressure changes. The valve opening can also be designed and adjusted for more precise control. The above controller and control process can be implemented using existing technologies.
[0033] The damper described in this embodiment is mainly installed at the connection node between the crossbeam 13 and the column 14. During installation, one support 7 is installed on the crossbeam 13, and the other support 7 is installed on the column 14. Accordingly, the first arc-shaped damping component 1 and the second arc-shaped damping component 2 are set as right-angled arcs (arcs with a central angle of π / 2 radians). The support 7 can be installed by directly casting it onto the crossbeam 13 and the column 14; or by setting connecting holes on the support 7 and fixing it to the crossbeam 13 and the column 14 with bolts; or by pre-reserving connecting screws on the crossbeam 13 and the column 14, inserting the support 7 onto the screws and locking it with nuts.
[0034] Furthermore, in the description of this utility model, unless otherwise stated, the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings is only for the convenience of describing this utility model and simplifying the description, and is not intended to 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 utility model.
[0035] The specific embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A damping component, characterized in that: It includes an arc-shaped piston and an arc-shaped cylinder, the arc-shaped piston being inserted into the arc-shaped cylinder and the two being slidably connected, and a fluid damping medium being filled between the arc-shaped piston and the arc-shaped cylinder; The damping assembly includes a first arc-shaped damping component (1) and a second arc-shaped damping component (2); the first arc-shaped damping component (1) includes a first arc-shaped piston (3) and a first arc-shaped cylinder (4), the first arc-shaped piston (3) is slidably connected inside the first arc-shaped cylinder (4), and a fluid damping medium is filled between the first arc-shaped piston (3) and the first arc-shaped cylinder (4); the second arc-shaped damping component (2) includes a second arc-shaped piston (5) and a second arc-shaped cylinder (6), the second arc-shaped piston (5) is slidably connected inside the second arc-shaped cylinder (6), and a fluid damping medium is filled between the second arc-shaped piston (5) and the second arc-shaped cylinder (6), and the first arc-shaped damping component (1) and the second arc-shaped damping component (2) are concentrically arranged.
2. The damping component according to claim 1, characterized in that: It also includes a support (7), and the adjacent ends of the first arc-shaped damping component (1) and the second arc-shaped damping component (2) are connected by the same support (7), and the two ends of the first arc-shaped damping component (1) and the second arc-shaped damping component (2) are respectively hinged to the corresponding support (7).
3. The damping component according to claim 2, characterized in that: The support (7) has two pairs of support plates (8) at its two ends. The first arc-shaped damping component (1) and the second arc-shaped damping component (2) have round head plates (9) at their two ends. The support plates (8) and the round head plates (9) have corresponding hinge holes. The round head plates (9) are engaged between the two pairs of support plates (8) and a pin is inserted through the hinge hole to form a hinge.
4. A sector damper with valve control, characterized in that: The damping component includes any one of claims 2-3, and further includes a regulating valve (10) and a delivery pipe (11). The first arc-shaped piston (3) and the second arc-shaped piston (5) are both tubular structures with closed outer ends. The first arc-shaped damping component (1) and the second arc-shaped damping component (2) are connected at least one adjacent end through the delivery pipe (11), and the regulating valve (10) is provided on the delivery pipe (11).
5. The sector damper with valve control according to claim 4, characterized in that: It also includes a pressure sensor and a controller. The pressure sensor is respectively installed on the first arc-shaped damping component (1) and the second arc-shaped damping component (2). The regulating valve (10) is an electric valve. The pressure sensor and the regulating valve (10) are respectively electrically connected to the controller.
6. The sector damper with valve control according to claim 4, characterized in that: The first arc-shaped damping component (1) and the second arc-shaped damping component (2) are right-angled arcs.
7. The sector damper with valve control according to claim 4, characterized in that: The support (7) is provided with a boss (12), and the regulating valve (10) is fixed on the boss (12). The first arc-shaped damping component (1) and the second arc-shaped damping component (2) are arranged in opposite directions.
8. The sector damper with valve control according to claim 4, characterized in that: Installed at the connection node between the crossbeam (13) and the column (14), one of the supports (7) is installed on the crossbeam (13) and the other support (7) is installed on the column (14).
9. The sector damper with valve control according to claim 8, characterized in that: The support (7) is cast on the crossbeam (13) or column (14), or a connecting hole is provided on the support (7) and it is fixed to the crossbeam (13) or column (14) by bolts.