Viscous damper capable of simultaneously meeting bearing and large displacement

Abstract

The utility model discloses a viscous damper simultaneously satisfying bearing and large displacement, which comprises an upper connecting plate connected with a pipe clamp accessory and a lower connecting plate arranged opposite to the upper connecting plate, the lower part of the upper connecting plate is fixedly connected with an upper shell, the upper part of the lower connecting plate is fixedly connected with a lower shell, a sealing sleeve is connected between the upper shell and the lower shell, and the sealing sleeve is fixedly connected with the lower shell. Damping liquid is arranged in an inner cavity of the lower shell, a plunger extending into the damping liquid is fixedly arranged on the lower portion of the upper connecting plate, at least two lower lug handles which are oppositely arranged are arranged at the lower end of the plunger, and the lower lug handles are fixedly connected with tension springs which are obliquely arranged. According to the viscous damper, the requirement for large thermal displacement of a pipeline can be met while vibration reduction of the pipeline is achieved, the tension spring can have the stretching buffering effect on the plunger, the supporting effect and the vibration reduction effect are achieved, and the viscous damper can meet the requirement for large displacement when the pipeline vibrates while bearing the load of the pipeline; and the multifunctionality of the viscous damper is improved.

Description

Technical Field

[0001] This utility model relates to the field of viscous damper technology, and in particular to a viscous damper that simultaneously satisfies load-bearing and large displacement requirements. Background Technology

[0002] Dampers are widely used energy-dissipating and vibration-damping devices, extensively applied in vibration control of various mechanical equipment, building structures, and petrochemical pipelines, demonstrating excellent vibration reduction and energy dissipation effects. Viscous dampers, which utilize the viscous properties of the damping material itself to achieve energy dissipation and vibration reduction, require no sealing during the energy dissipation process, do not rely on additional pressure, and offer advantages such as low cost, long service life, and recyclability. They are widely used in vibration reduction of various pipelines in chemical, shipbuilding, and thermal power plant industries. The principle of viscous dampers is to dissipate the vibrational kinetic energy of the pipeline through the deformation of the damping fluid, converting the vibrational kinetic energy into the heat energy of the damping fluid, thus reducing the adverse effects of vibration on the pipeline. Viscous dampers are commonly used equipment for pipeline vibration reduction.

[0003] Currently, common viscous dampers have relatively limited functions and cannot meet the diverse needs of pipelines when installed at the bottom. For example, some viscous dampers, while meeting the requirements for pipeline displacement, cannot fulfill the load-bearing function of the viscous damper on the pipeline; while others, while meeting the load-bearing function of the pipeline, cannot meet the conditions of large displacement caused by pipeline vibration. Utility Model Content

[0004] To address the technical problem that existing viscous dampers have a relatively limited function and cannot simultaneously meet the requirements of load bearing and large displacement, this utility model provides the following technical solution.

[0005] This utility model discloses a viscous damper that simultaneously meets the requirements of load bearing and large displacement. It includes an upper connecting plate connected to a pipe clamp accessory and a lower connecting plate disposed opposite to the upper connecting plate. An upper housing is fixedly connected to the lower part of the upper connecting plate, and a lower housing is fixedly connected to the upper part of the lower connecting plate. A sealing sleeve is connected between the upper housing and the lower housing. The inner cavity of the lower housing is filled with damping fluid. A plunger extending into the damping fluid is fixedly disposed at the lower part of the upper connecting plate. At least two lower lugs disposed opposite to each other are provided at the lower end of the plunger. An inclined tension spring is fixedly connected to each lower lug.

[0006] As a further technical solution, the upper part of the lower housing is provided with an upper ear handle, and the upper end of the tension spring is connected to the upper ear handle.

[0007] As a further technical solution, the tension spring is fixedly connected to the inner wall of the upper housing.

[0008] As a further technical solution, the lower end of the tension spring is connected to the lower inner wall of the lower housing.

[0009] As a further technical solution, the lower end of the plunger is connected to a fixing plate, and the lower lug is installed on the outer periphery of the fixing plate.

[0010] As a further technical solution, there are four tension springs, which are evenly arranged around the lower end of the plunger.

[0011] The beneficial effects of this invention are as follows: The lower end of the plunger is connected to several inclined tension springs via a lower lug. When the pipe and plunger displace in one direction, the lower ends of the tension springs displace in the same direction as the plunger. Conversely, the tension springs in the opposite direction buffer the plunger, thus satisfying both pipe vibration reduction and large thermal displacement requirements. When the pipe vibrates vertically, it exerts vertical forces on the tension springs 6, which also buffer the plunger 3, providing both support and vibration reduction. This viscous damper can withstand pipe loads while also meeting the large displacement requirements during pipe vibration, thus improving the versatility of the viscous damper. Attached Figure Description

[0012] Figure 1 This is a cross-sectional planar structural diagram of the viscous damper of this utility model that simultaneously satisfies load-bearing and large displacement requirements;

[0013] In the diagram: 1-Upper connecting plate; 2-Upper housing; 3-Plunger; 4-Sealing sleeve; 5-Upper lug; 6-Tension spring; 7-Lower housing; 8-Damping fluid; 9-Lower connecting plate; 10-Lower lug. Detailed Implementation

[0014] 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.

[0015] 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.

[0016] like Figure 1As shown, this utility model discloses a viscous damper that simultaneously meets the requirements of load bearing and large displacement. It includes an upper connecting plate 1 connected to a pipe clamp accessory and a lower connecting plate 9 opposite to the upper connecting plate 1. The upper connecting plate 1 is used for the pipe clamp accessory, and the lower connecting plate 9 is used for connection to a fixed support. An upper housing 2 is fixedly connected to the lower part of the upper connecting plate 1, and a lower housing 7 corresponding to the upper housing 2 is fixedly connected to the upper part of the lower connecting plate 9. A sealing sleeve 4 connects the upper housing 2 and the lower housing 7. Damping fluid 8 is provided inside the lower housing 7. A plunger 3 extending into the damping fluid 8 is fixedly provided at the lower part of the upper connecting plate 1. When the pipeline vibrates, the vibration is transmitted to the plunger 3 via the upper connecting plate 1. The plunger 3 vibrates, and the damping fluid 8 generates a damping force on the vibration of the plunger 3, thus achieving damping and vibration reduction.

[0017] In a preferred embodiment, the upper part of the lower housing 7 is provided with at least two opposing upper lugs 5, and each upper lug 5 is connected to a tension spring 6. The tension spring 6 is inclined, and its upper end is connected to the upper lug 5. The lower end of the plunger 3 is provided with at least two opposing lower lugs 10, and each lower lug 10 is fixedly connected to the inclined tension spring 6. In this case, there are two tension springs 6, and the lower ends of both tension springs 6 are connected to the lower lugs 10. Of course, the number of tension springs 6 is not limited to two; there can also be four or six tension springs 6, which are arranged opposite each other and evenly distributed around the lower end of the plunger 3. When the pipeline is displaced, the pipeline displacement causes the plunger 3 to move together through the upper connecting plate 1. When the plunger 3 moves horizontally to the left, the lower end of the tension spring 6 swings to the left along the lower lug 10. When the plunger 3 moves horizontally to the right, the lower end of the tension spring 6 swings to the right along the lower lug 10, ensuring vibration damping and accommodating the large thermal displacement of the pipeline.

[0018] In a preferred embodiment, the upper end of the tension spring 6 is not limited to being connected to the upper ear handle 5; it can also be fixedly connected to the inner wall of the upper housing 2. In this case, the lower end of the tension spring 6 is connected to the lower ear handle 10. The inclined tension spring 6 can also play the role of vibration damping and support.

[0019] In a preferred embodiment, the lower end of the plunger 3 is connected to a fixing plate, and the lower lug 10 is installed on the outer periphery of the fixing plate. At this time, the upper end of the tension spring 6 can be connected to the lower lug 10, and the lower end of the tension spring 6 can be connected to the lower inner wall of the lower housing 7. In this connection method, the tension spring 6 is also kept inclined, which can also meet the large thermal displacement of the pipeline while ensuring the vibration reduction effect.

[0020] The working principle of this invention is as follows: Pipe displacement is caused by thermal displacement resulting from the introduction of a high-temperature medium into the pipe. Larger thermal displacements require sufficient space for the vibrating components of the viscous damper. When the pipe shifts, the displacement is transmitted through the upper connecting plate 1 to the plunger 3. When the plunger 3 moves horizontally to the left, the lower end of the tension spring 6 swings to the left along the lower lug 10; when the plunger 3 moves horizontally to the right, the lower end of the tension spring 6 swings to the right along the lower lug 10, thus accommodating the larger thermal displacement of the pipe. The weight of the pipe is transferred to the plunger 3 through the upper connecting plate 1, and then further transferred to each tension spring 6 through the plunger 3 and the lower lug 10. When the pipe vibrates vertically, it exerts a vertical force on the tension spring 6, which in turn buffers the plunger 3, providing both support and vibration damping, allowing the viscous damper to simultaneously meet the requirements of load bearing and large displacement. Similarly, the damping fluid 8 generates a damping force on the vibration of the plunger 3, providing damping and vibration reduction.

[0021] 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. A viscous damper that simultaneously satisfies load-bearing and large displacement requirements, comprising an upper connecting plate (1) connected to a pipe clamp accessory and a lower connecting plate (9) disposed opposite to the upper connecting plate (1), wherein an upper housing (2) is fixedly connected to the lower part of the upper connecting plate (1), a lower housing (7) is fixedly connected to the upper part of the lower connecting plate (9), a sealing sleeve (4) is connected between the upper housing (2) and the lower housing (7), a damping fluid (8) is provided in the inner cavity of the lower housing (7), and a plunger (3) extending into the damping fluid (8) is fixedly provided at the lower part of the upper connecting plate (1), characterized in that: The lower end of the plunger (3) is provided with at least two oppositely arranged lower ear handles (10), and the lower ear handles (10) are fixedly connected with obliquely arranged tension springs (6).

2. The viscous damper satisfying both load bearing and large displacement according to claim 1, characterized by: The upper part of the lower shell (7) is provided with an upper ear handle (5), and the upper end of the tension spring (6) is connected to the upper ear handle (5).

3. The load and large displacement satisfying viscous damper according to claim 1, characterized by: The tension spring (6) is fixedly connected to the inner wall of the upper shell (2).

4. The load and large displacement satisfying viscous damper according to claim 1, characterized by: The lower end of the tension spring (6) is connected to the lower inner wall of the lower shell (7).

5. The load and large displacement satisfying viscous damper according to claim 1, characterized by: The lower end of the plunger (3) is connected with a fixed plate, and the lower ear handle (10) is mounted on the outer periphery of the fixed plate.

6. The load and large displacement satisfying viscous damper according to claim 1, characterized by: The tension spring (6) is four, which are uniformly arranged around the lower end of the plunger (3).

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