Elastic ring damping device

Abstract

The utility model discloses an elastic ring damping device which comprises an upper mounting plate and a lower mounting plate, the upper portion of the lower mounting plate is connected with a shell with an inner cavity filled with damping liquid, the lower portion of the upper mounting plate is fixedly connected with a plunger, the plunger extends into the damping liquid, and a plurality of damping parts are arranged in the inner cavity of the shell in the vertical direction. The damping component comprises a plurality of positioning plates fixedly connected with the plunger and a plurality of sleeves connected with the shell, the ends, away from the plunger, of the positioning plates are fixedly connected with damping rings, the upper ends and the lower ends of the damping rings are connected with upper cone plates and lower cone plates correspondingly, and the upper cone plates and the lower cone plates are connected with sealing sleeves connected with the plunger correspondingly. The ends, away from the sealing sleeve, of the upper cone plate and the lower cone plate are connected to the sleeve. During high-frequency vibration, the damping ring can generate reverse damping force by means of the flexibility of the damping ring, hydraulic energy consumption can be performed by means of the through holes in the upper cone plate and the lower cone plate at low frequency, the damping vibration attenuation effect at high frequency and low frequency is achieved, and the vibration attenuation effect and the application range of the damper are improved.

Description

Technical Field

[0001] This utility model relates to the field of viscous damper technology, and in particular to an elastic ring damping device. Background Technology

[0002] Dampers are general-purpose devices used for vibration reduction. In various pipeline vibration reduction applications, the most commonly used products are hydraulic dampers and viscous dampers. Hydraulic dampers are vibration control devices that are highly responsive to speed. Conventional hydraulic dampers rely on the hydraulic resistance generated when hydraulic oil passes through an orifice plate to dissipate energy and reduce vibration. They generate a damping force equal to the vibration force, thus preventing large vibrations or displacements in the pipeline and protecting it. Viscous dampers, on the other hand, work by using the deformation of the damping fluid to dissipate the pipeline's vibrational kinetic energy, converting it into heat energy in the damping fluid. This reduces the adverse effects of vibration on the pipeline and ensures the normal operation of the pipeline system.

[0003] The aforementioned common hydraulic dampers and viscous dampers are effective at reducing low-frequency vibrations. However, they are not effective at reducing high-frequency vibrations and cannot effectively reduce high-frequency vibrations. Moreover, existing dampers cannot withstand large weight loads. When encountering large weight loads, the dampers are easily damaged by pressure, which affects the damping effect and application range of the dampers. Utility Model Content

[0004] To address the technical problems of existing dampers being unable to effectively reduce high-frequency vibrations and being unable to withstand large weight loads, this utility model provides the following technical solution.

[0005] This utility model discloses an elastic ring damping device, comprising an upper mounting plate and a lower mounting plate located below the upper mounting plate. A housing containing damping fluid is fixedly connected to the upper part of the lower mounting plate. A plunger is fixedly connected to the lower part of the upper mounting plate, extending into the damping fluid. Several damping components are vertically arranged within the housing cavity. Each damping component includes several positioning plates fixedly connected to the plunger and several sleeves connected to the housing. A damping ring is fixedly connected to the end of each positioning plate away from the plunger. An upper conical plate and a lower conical plate are respectively connected to the upper and lower ends of the damping ring. Sealing sleeves connected to the plunger are respectively connected to the upper and lower conical plates. The ends of the upper and lower conical plates away from the sealing sleeves are respectively connected to the sleeves.

[0006] As a further technical solution, there are two sleeves, and the ends of the upper and lower conical plates away from the sealing sleeve are respectively connected to one of the sleeves.

[0007] As a further technical solution, the upper cone plate, the lower cone plate, the damping ring, and the sleeve form a sealed cavity, into which the damping fluid flows.

[0008] As a further technical solution, both the upper cone plate and the lower cone plate are provided with several through holes of the same structure, through holes for the damping fluid to pass through.

[0009] As a further technical solution, the damping ring is made of an elastic material.

[0010] As a further technical solution, there are two damping components, which are installed sequentially in the vertical direction of the housing.

[0011] The beneficial effects of this utility model are as follows: Several positioning plates are set on the plunger, and a damping ring is fixedly installed at the end of the positioning plate away from the plunger. The upper and lower ends of the damping ring are tightly fitted with the upper and lower conical plates to form a sealed annular cavity. In this way, the plunger can bear a certain vertical load through the damping ring. During high-frequency vibration, the damping ring can also generate reverse damping force due to its flexibility. At low frequencies, hydraulic energy can be dissipated through the through holes on the upper and lower conical plates. This realizes the damping and vibration reduction function at both high and low frequencies, and improves the vibration reduction effect and application range of the damper. Attached Figure Description

[0012] Figure 1 This is a cross-sectional schematic diagram of the elastic ring damping device of this utility model.

[0013] Figure 2 This is a cross-sectional schematic diagram along the AA direction of the elastic ring damping device of this utility model;

[0014] In the diagram: 1-Upper mounting plate; 2-Plunger; 3-Housing shell; 4-Sleeve; 5-Upper conical plate; 6-Lower conical plate; 7-Sealing sleeve; 8-Damping ring; 9-Positioning plate; 10-Through hole; 11-Damping fluid; 12-Lower mounting plate. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0016] In the description of this utility model, it should be understood that the terms "upper" and "lower" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0017] like Figure 1 and Figure 2 As shown, this utility model discloses an elastic ring damping device, including an upper mounting plate 1 and a lower mounting plate 12 located below the upper mounting plate 1. A pipe is connected to the upper mounting plate 1 via pipe clamps, and the lower mounting plate 12 is mounted on a fixed steel frame. A housing 3 with a damping fluid 11 inside is fixedly connected to the upper part of the lower mounting plate 12. The housing 3 is a hollow cylindrical structure with an open top. A plunger 2 is fixedly connected to the lower part of the upper mounting plate 1, extending into the damping fluid 11. When the pipe vibrates, the vibration causes the upper mounting plate 1 to vibrate. At this time, the plunger 2 vibrates, generating squeezing and shearing forces on the damping fluid 11. The damping fluid 11 forms a reverse viscous damping force on the plunger 2, effectively reducing the adverse effects of vibration on the pipe.

[0018] In a preferred embodiment, the inner cavity of the housing 3 is provided with a plurality of damping components in the vertical direction. In this embodiment, there are two damping components, which are installed sequentially in the vertical direction of the housing 3. Of course, the present invention does not limit the number of damping components. Specifically, the damping components include a plurality of positioning plates 9 fixedly connected to the plunger 2 and a plurality of sleeves 4 connected to the housing 3. A damping ring 8 is fixedly connected to the end of the positioning plate 9 away from the plunger 2. The damping ring 8 is made of elastic material. In this embodiment, the damping ring 8 is composed of an annular rubber body. Of course, the damping ring 8 can also be a ring structure made of other elastic materials. In addition, the positioning plate 9 can be a ring-shaped plate structure or composed of multiple cuboid plates, as long as the positioning plate 9 can stably connect the damping ring 8.

[0019] The upper and lower ends of the damping ring 8 are respectively connected to an upper conical plate 5 and a lower conical plate 6. Both the upper and lower conical plates 5 and 6 are annular conical plate structures. Each of the upper and lower conical plates 5 and 6 is connected to a sealing sleeve 7, which is connected to the plunger 2. The ends of the upper and lower conical plates 5 and 6 furthest from the sealing sleeve 7 are respectively connected to a sleeve 4. At this time, the positioning plate 9, damping ring 8, upper conical plate 5, and lower conical plate 6 can effectively bear the load and dampen vibrations of the pipeline within the damping fluid 11.

[0020] There can be only one sleeve 4, with the upper cone plate 5 and the lower cone plate 6 connected to the same sleeve 4. Alternatively, there can be two sleeves 4, with the ends of the upper cone plate 5 and the lower cone plate 6 away from the sealing sleeve 7 connected to a sleeve 4 respectively. In this case, the sleeve 4 can be vertically adjusted relative to the housing 3, thereby changing the angle between the upper cone plate 5 and the lower cone plate 6 and adjusting their damping effect.

[0021] In a preferred embodiment, the upper cone plate 5, the lower cone plate 6, the damping ring 8, and the sleeve 4 form a sealed annular cavity, into which the damping fluid 11 can flow. In this embodiment, both the upper cone plate 5 and the lower cone plate 6 are provided with several through holes 10 with the same structure. When the pipeline vibrates, the through holes 10 allow the damping fluid 11 to pass through. The specific working principle is as follows.

[0022] The working principle of this utility model is as follows: When assembling the damping device of this utility model, first, the sealing sleeve 7, the upper cone plate 5 and the sleeve 4 are fitted onto the plunger 2, and then the positioning plate 9 and the damping ring 8 are fitted onto the plunger 2. Finally, the lower cone plate 6, another sealing sleeve 7 and another sleeve 4 are fitted onto the plunger 2. Then, the above components are installed inside the housing 3. By adjusting the height of the two sleeves 4, the damping ring 8 forms a sealed cavity with the upper cone plate 5, the lower cone plate 6 and the sleeve 4. Then, a sufficient amount of damping fluid 11 is injected into the housing 3.

[0023] During operation, the pipeline is connected to the upper mounting plate 1 via pipe clamps. The upper mounting plate 1 transfers the weight load of the pipeline to the positioning plate 9 via the plunger 2. The positioning plate 9 then transfers the weight load to the lower cone plate 6 and the sleeve 4 via the damping ring 8, and finally to the lower mounting plate 12 via the housing 3. In this way, the plunger 2 can withstand a certain vertical load through the damping ring 8. When the pipeline vibrates, the vibration displacement is transferred to the plunger 2 through the upper mounting plate 1. When the plunger 2 vibrates and displaces, it will cause the positioning plate 9 and the damping ring 8 to displace together. At this time, since the damping ring 8 is an elastic material, the damping ring 8 itself deforms first. When the deformation is too large, it will squeeze the damping fluid in the cavity. 11. As the space on one side of the cavity decreases, the damping fluid 11 will flow from the through hole 10 into the housing 3, while the side with the larger cavity will absorb the damping fluid 11 through the through hole 10. When the damping fluid 11 flows through the through hole 10, hydraulic resistance will be generated, forming a reverse damping force. Therefore, the flexibility of the damping ring 8 itself and the hydraulic resistance generated by its deformation through the through hole 10 will play a role in vibration reduction. Thus, at high frequency vibration, the damping ring 8 can generate a reverse damping force by relying on its flexibility, and at low frequency, it can also rely on the through holes 10 on the upper cone plate 5 and the lower cone plate 6 to dissipate hydraulic energy, realizing the damping and vibration reduction effect at both high and low frequencies, and improving the vibration reduction effect and application range of the damper.

[0024] The preferred embodiments and examples 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 and examples. Within the scope of knowledge possessed by those skilled in the art, various changes or equivalent substitutions can be made without departing from the concept of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. An elastic ring damping device, comprising an upper mounting plate (1) and a lower mounting plate (12) located below the upper mounting plate (1), wherein a housing (3) with a damping fluid (11) is fixedly connected to the upper part of the lower mounting plate (12), and a plunger (2) is fixedly connected to the lower part of the upper mounting plate (1), the plunger (2) extending into the damping fluid (11), characterized in that: The inner cavity of the housing (3) is provided with several damping components in the vertical direction. The damping components include several positioning plates (9) fixedly connected to the plunger (2) and several sleeves (4) connected to the housing (3). A damping ring (8) is fixedly connected to one end of the positioning plate (9) away from the plunger (2). An upper cone plate (5) and a lower cone plate (6) are respectively connected to the upper and lower ends of the damping ring (8). A sealing sleeve (7) connected to the plunger (2) is respectively connected to the upper cone plate (5) and the lower cone plate (6). The ends of the upper cone plate (5) and the lower cone plate (6) away from the sealing sleeve (7) are respectively connected to the sleeves (4).

2. The elastic ring damping device according to claim 1, characterized in that: There are two sleeves (4), and the ends of the upper cone plate (5) and the lower cone plate (6) away from the sealing sleeve (7) are respectively connected to one of the sleeves (4).

3. The elastic ring damping device according to claim 1, characterized in that: The upper cone plate (5), the lower cone plate (6), the damping ring (8) and the sleeve (4) form a sealed cavity, and the damping fluid (11) flows into the cavity.

4. The elastic ring damping device according to claim 1 or 3, characterized in that: Both the upper cone plate (5) and the lower cone plate (6) are provided with several through holes (10) with the same structure, and the through holes (10) allow the damping fluid (11) to pass through.

5. The elastic ring damping device according to claim 1, characterized in that: The damping ring (8) is made of an elastic material.

6. The elastic ring damping device according to claim 1, characterized in that: There are two damping components, which are installed sequentially in the vertical direction of the housing (3).

Images