Viscous damper mounting structure
By improving the connection between the cylinder and the fixed frame of the viscous damper through movable connections and anti-wear mechanisms, the problems of cylinder stress and piston rod wear are solved, thereby improving the performance and durability of the damper and reducing maintenance costs.
Patent Information
- Application Number
- CN202521178607.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-10
- Publication Date
- 2026-07-10
- Estimated Expiration
- 2035-06-10
AI Technical Summary
The cylinder and mounting bracket of the existing viscous damper are fixedly connected by bolts, which makes it susceptible to excessive bending moment and torque under complex loads such as earthquakes, affecting performance and durability; the piston rod end is in direct contact with the embedded part, which is prone to wear and reduces service life.
The first connecting rod, mounting sleeve, second connecting plate, and connecting mechanism are connected in a movable manner to avoid the cylinder being subjected to excessive bending moment and torque; a first anti-wear mechanism and a second anti-wear mechanism are set to avoid direct contact wear at the piston rod end.
This effectively ensures that the cylinder is unrestrained during multi-directional displacement, reduces deformation and damage, extends the damper's lifespan, and lowers maintenance costs.
Smart Images

Figure CN224479234U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of damper installation technology, and more specifically, to a viscous damper installation structure. Background Technology
[0002] A viscous damper is a mechanical device that uses the viscous resistance of a liquid to dissipate vibration energy, and it is a core component of a passive vibration reduction system. Its working principle is based on fluid dynamics: when the structure vibrates and undergoes relative motion, a piston reciprocates within a cylinder filled with viscous fluid, forcing the fluid to flow through throttling orifices or gaps, thereby generating viscous resistance and converting the vibration kinetic energy into heat energy, thus reducing the amplitude of structural vibration.
[0003] A search revealed Chinese patent application number 202320699719.3, which discloses a viscous damper mounting structure. The structure includes a piston rod, a cylinder, a mounting beam, and a fixing frame. The piston rod has flat ends and is housed within the cylinder, allowing it to reciprocate along the cylinder. The mounting beam has an open receiving space containing the viscous damper, with the flat ends of the piston rod positioned on the sidewalls of this space. One end of the fixing frame is mounted on the cylinder, and the other end is mounted on the mounting beam on the side away from the receiving space, fixing the cylinder to the mounting beam on one side. This prevents rotation in space, reduces the mounting dimensions of the viscous damper, improves stability, and extends the service life of the viscous damper. However, the aforementioned patent has the following shortcomings: 1. The cylinder and the fixed frame are fixedly connected by bolts, and the fixed frame is also fixedly connected to the mounting beam. This rigid connection method, under complex loads such as earthquakes, can easily cause the cylinder to bear excessive bending moment and torque due to irregular deformation and vibration of the building, leading to deformation or even damage, seriously affecting the performance and durability of the damper. Moreover, the two ends of the piston rod directly abut against the surface of the embedded part. In actual engineering environments, the exposed surface of the embedded part is prone to dust accumulation or corrosion, resulting in a rough surface and increased frictional resistance. When the damper is working, the piston rod bears a huge axial force, accompanied by a small lateral displacement or angular deflection. This direct contact will cause continuous wear on the contact surface, further reducing the service life of the damper. Therefore, this utility model proposes a new solution. Utility Model Content
[0004] The purpose of this utility model is to solve the problem in the above-mentioned application where the cylinder and the fixed frame are fixedly connected by bolts, and the fixed frame is also fixedly connected to the mounting beam. This rigid connection method is prone to causing the cylinder to bear excessive bending moment and torque under the action of complex loads such as earthquakes, resulting in deformation or even damage. This seriously affects the performance and durability of the damper. Moreover, the two ends of the piston rod directly abut against the surface of the embedded part. In the actual engineering environment, the surface of the exposed embedded part is prone to dust accumulation or rust, resulting in a rough surface and increased frictional resistance. When the damper is working, the piston rod bears huge axial force, accompanied by small lateral displacement or angular deflection. This direct contact will cause the contact surface of the two to wear continuously, further reducing the service life of the damper. Therefore, a viscous damper installation structure is proposed.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A viscous damper mounting structure is proposed to improve the above-mentioned problems.
[0007] The present invention is as follows:
[0008] The device includes a first mounting beam and a second mounting beam. The first mounting beam has a receiving space, and a viscous damper is provided on the inner side of the receiving space. A first embedded part is provided on the second mounting beam. A fixing frame is fixedly installed at the bottom of the first embedded part. The fixing frame includes two first connecting rods symmetrically installed at the bottom of the first embedded part. A second connecting plate is movably installed between the two first connecting rods through a connecting mechanism. The bottom of the second connecting plate is connected to a mounting sleeve fixedly installed on the outer wall of the cylinder of the viscous damper. Two second embedded parts connected to the first mounting beam are symmetrically provided on the side wall of the receiving space. A first anti-wear mechanism and a second anti-wear mechanism that cooperate with the second embedded parts are detachably installed at both ends of the piston rod of the viscous damper.
[0009] As a preferred technical solution of this utility model, the connecting mechanism includes a pin rotatably connected to the first connecting rod and a spherical inner ring rotatably connected to the second connecting plate, wherein the spherical inner ring is provided with a through hole that cooperates with the pin.
[0010] As a preferred technical solution of this utility model, the second connecting plate is provided with a mounting groove that cooperates with the inner spherical ring, and the inner spherical ring is rotatably installed inside the second connecting plate through the mounting groove.
[0011] As a preferred technical solution of this utility model, both the first anti-wear mechanism and the second anti-wear mechanism include a first pad installed at the piston rod end of the viscous damper and a second pad installed on the second embedded part.
[0012] As a preferred technical solution of this utility model, a first flange is fixedly connected to one end of the first pad, and a second flange that cooperates with the first flange is fixedly connected to the piston rod end of the viscous damper. The first flange and the second flange are detachably connected by a plurality of first bolts.
[0013] As a preferred technical solution of this utility model, the end of the second pad is fixedly connected to a base plate, and a plurality of second bolts are threadedly connected to the base plate. The second embedded part is provided with screw holes that cooperate with the second bolts.
[0014] As a preferred technical solution of this utility model, the mounting sleeve is provided in two parts, and the two mounting sleeves are respectively fixedly installed at both ends of the viscous damper cylinder, and the second connecting plate is fixedly connected to the top of the two mounting sleeves.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] In the solution of this utility model:
[0017] 1. By setting up the first connecting rod, mounting sleeve, second connecting plate and connecting mechanism, the cylinder of the viscous damper can be movably connected to the fixed frame support during use. The movable connection between the two can also realize the movable connection between the cylinder of the viscous damper and the mounting beam. This allows the cylinder to undergo multi-directional displacement with the building structure during an earthquake without restraint, while avoiding the cylinder from bearing excessive bending moment and torque, reducing the problem of cylinder deformation or damage, thereby effectively ensuring the performance and durability of the viscous damper.
[0018] 2. By setting up the first and second anti-wear mechanisms, the end of the piston rod can be prevented from directly contacting the second embedded part, thus avoiding wear caused by direct contact between the two and effectively extending the service life of the damper. At the same time, the detachable first and second anti-wear mechanisms can be easily replaced individually when they are damaged, thereby effectively reducing maintenance costs. Attached Figure Description
[0019] Figure 1 A schematic diagram of the overall structure of the viscous damper mounting structure provided by this utility model;
[0020] Figure 2 A schematic diagram of the overall structure of the viscous damper mounting structure provided by this utility model;
[0021] Figure 3 A schematic diagram of the overall structure of the viscous damper mounting structure provided by this utility model;
[0022] Figure 4Exploded view of the viscous damper mounting structure provided by this utility model;
[0023] Figure 5 The viscous damper mounting structure provided by this utility model Figure 4 Enlarged view of the structure at point A.
[0024] The image shows:
[0025] 1. First mounting beam; 2. Second mounting beam; 3. Accommodation space; 4. Viscous damper; 5. First anti-wear mechanism; 6. Second anti-wear mechanism; 7. First connecting rod; 8. Mounting sleeve; 9. Second connecting plate; 10. First embedded part; 11. Second embedded part; 12. Pin; 13. Spherical inner ring; 14. Mounting groove; 501. First pad; 502. Second pad; 503. First flange; 504. Second flange; 505. First bolt; 506. Second bolt; 507. Bolt hole; 508. Base plate. Detailed Implementation
[0026] 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.
[0027] like Figure 1 , Figure 2 and Figure 4As shown, this embodiment proposes a viscous damper mounting structure, including a first mounting beam 1 and a second mounting beam 2. The first mounting beam 1 has a receiving space 3, and a viscous damper 4 is mounted inside the receiving space 3. A first embedded part 10 is mounted on the second mounting beam 2, and a fixing frame is fixedly mounted on the bottom of the first embedded part 10. The fixing frame includes two first connecting rods 7 symmetrically mounted on the bottom of the first embedded part 10. A second connecting plate 9 is movably mounted between the two first connecting rods 7 via a connecting mechanism. The bottom of the second connecting plate 9 is connected to a mounting sleeve 8 fixedly mounted on the outer wall of the cylinder of the viscous damper 4. Through the arrangement of the first connecting rods 7, the mounting sleeve 8, the second connecting plate 9, and the connecting mechanism, the cylinder of the viscous damper 4 can be movably connected to the fixing frame during use. This movable connection also allows for the movement of the cylinder of the viscous damper 4 with the mounting beam. The connection allows the cylinder to undergo multi-directional displacement with the building structure during an earthquake without restraint, while avoiding excessive bending moment and torque on the cylinder, reducing the problem of cylinder deformation or damage, thereby effectively ensuring the performance and durability of the viscous damper; the side wall of the accommodating space 3 is symmetrically provided with two second embedded parts 11 connected to the first mounting beam 1. The piston rod of the viscous damper 4 is detachably installed at both ends with a first anti-wear mechanism 5 and a second anti-wear mechanism 6 that cooperate with the second embedded parts 11. By setting the first anti-wear mechanism 5 and the second anti-wear mechanism 6, the end of the piston rod can be prevented from directly contacting the second embedded part 11, avoiding wear caused by direct contact between the two, which can effectively extend the service life of the damper. At the same time, the detachable first anti-wear mechanism 5 and the second anti-wear mechanism 6 can also be easily replaced individually when damaged, thereby effectively reducing maintenance costs.
[0028] like Figures 1-3 As shown, in a preferred embodiment, based on the above method, the connecting mechanism further includes a pin 12 rotatably connected to the first connecting rod 7 and a spherical inner ring 13 rotatably connected to the second connecting plate 9. The spherical inner ring 13 has a through hole that mates with the pin 12. The second connecting plate 9 has a through mounting groove 14 that mates with the spherical inner ring 13. The spherical inner ring 13 is rotatably mounted inside the second connecting plate 9 through the mounting groove 14. It should be noted that the spherical inner ring 13 and the pin 12 enable universal rotation between the first connecting rod 7 and the second connecting plate 9, allowing the cylinder to undergo multi-directional displacement with the building structure during an earthquake without constraint, reducing the possibility of deformation and damage. Simultaneously, the universal rotation connection also allows for a certain installation error, reducing on-site adjustment time.
[0029] like Figure 4 and Figure 5As shown, in a preferred embodiment, based on the above method, both the first anti-wear mechanism 5 and the second anti-wear mechanism 6 include a first pad 501 installed at the piston rod end of the viscous damper 4 and a second pad 502 installed on the second embedded part 11. It should be noted that the pads are made of wear-resistant material, which can reduce direct friction between the piston rod and the embedded part. At the same time, the pads can also increase the contact area and avoid stress concentration at the piston rod end.
[0030] like Figure 4 and Figure 5 As shown, in a preferred embodiment, based on the above method, a first flange 503 is fixedly connected to one end of the first gasket 501, and a second flange 504 that cooperates with the first flange 503 is fixedly connected to the piston rod end of the viscous damper 4. The first flange 503 and the second flange 504 are detachably connected by a plurality of first bolts 505. It should be noted that the arrangement of the first flange 503, the second flange 504 and the first bolts 505 facilitates the disassembly and replacement of the first gasket 501.
[0031] like Figure 4 and Figure 5 As shown, in a preferred embodiment, based on the above method, a base plate 508 is further fixedly connected to the end of the second pad 502. Multiple second bolts 506 are threaded onto the base plate 508, and the second embedded part 11 has screw holes 507 that mate with the second bolts 506. It should be noted that the arrangement of the base plate 508, the second bolts 506, and the screw holes 507 facilitates the individual disassembly and replacement of the second pad 502, effectively reducing overall maintenance costs.
[0032] like Figure 3 As shown, in a preferred embodiment, based on the above method, two mounting sleeves 8 are further provided. The two mounting sleeves 8 are respectively fixedly installed at both ends of the cylinder of the viscous damper 4, and the second connecting plate 9 is fixedly connected to the top of the two mounting sleeves 8. It should be noted that fixing at both ends avoids tilting or torsion caused by unilateral force on the cylinder, thereby improving the overall operational stability of the viscous damper.
[0033] Specifically, the working principle of this viscous damper installation structure is as follows: During installation, the two first connecting rods 7 are firstly welded onto the first embedded part 10. Then, the second connecting plate 9 is placed between the two first connecting rods 7. The movable connection between the first connecting rods 7 and the second connecting plate 9 is completed by the pin 12 passing through the first connecting rods 7, the second connecting plate 9, and the spherical inner ring 13. Then, the first anti-wear mechanism 5 and the second anti-wear mechanism 6 are installed on both ends of the piston rod of the viscous damper 4, respectively. After installation, it is placed between the two second embedded parts 11 inside the accommodating space 3. Then, the second connecting plate 9 is welded and fixed to the mounting sleeve 8 on the cylinder of the viscous damper 4. At this time, the installation of the viscous damper 4 is completed.
[0034] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present utility model.
Claims
1. A viscous damper mounting structure, comprising a first mounting beam (1) and a second mounting beam (2), wherein a receiving space (3) is provided on the first mounting beam (1), and a viscous damper (4) is provided on the inner side of the receiving space (3), characterized in that, The second mounting beam (2) is provided with a first embedded part (10), and a fixing frame is fixedly installed at the bottom of the first embedded part (10). The fixing frame includes two first connecting rods (7) symmetrically installed at the bottom of the first embedded part (10). A second connecting plate (9) is movably installed between the two first connecting rods (7) through a connecting mechanism. The bottom of the second connecting plate (9) is connected to a mounting sleeve (8) fixedly installed on the outer wall of the cylinder of the viscous damper (4). The side wall of the accommodating space (3) is symmetrically provided with two second embedded parts (11) connected to the first mounting beam (1). The piston rod of the viscous damper (4) is detachably installed at both ends with a first anti-wear mechanism (5) and a second anti-wear mechanism (6) that cooperate with the second embedded part (11).
2. The viscous damper mounting structure according to claim 1, characterized in that, The connecting mechanism includes a pin (12) rotatably connected to the first connecting rod (7) and a spherical inner ring (13) rotatably connected to the second connecting plate (9). The spherical inner ring (13) has a through hole that cooperates with the pin (12).
3. The viscous damper mounting structure according to claim 2, characterized in that, The second connecting plate (9) has a through-hole for mounting groove (14) that cooperates with the spherical inner ring (13). The spherical inner ring (13) is rotatably mounted inside the second connecting plate (9) through the mounting groove (14).
4. The viscous damper mounting structure according to claim 1, characterized in that, Both the first anti-wear mechanism (5) and the second anti-wear mechanism (6) include a first pad (501) installed at the piston rod end of the viscous damper (4) and a second pad (502) installed on the second embedded part (11).
5. The viscous damper mounting structure according to claim 4, characterized in that, One end of the first pad (501) is fixedly connected to a first flange (503), and the piston rod end of the viscous damper (4) is fixedly connected to a second flange (504) that cooperates with the first flange (503). The first flange (503) and the second flange (504) are detachably connected by a plurality of first bolts (505).
6. The viscous damper mounting structure according to claim 5, characterized in that, The end of the second pad (502) is fixedly connected to a base plate (508), and a plurality of second bolts (506) are threaded on the base plate (508). The second embedded part (11) is provided with screw holes (507) that cooperate with the second bolts (506).
7. The viscous damper mounting structure according to claim 1, characterized in that, The mounting sleeve (8) is provided in two parts, and the two mounting sleeves (8) are respectively fixedly installed at both ends of the cylinder of the viscous damper (4), and the second connecting plate (9) is fixedly connected to the top of the two mounting sleeves (8).
Citation Information
Patent Citations
Viscous damper mounting structure
CN219297954U
