Cabin-penetrating vibration isolation device
By using a combination of metal outer rings, rubber parts, and pipe connectors in the ship's piping system, the problem of vibration transmission caused by liquid flow was solved, achieving effective vibration isolation and improved structural stability, thus extending the service life of the ship.
Patent Information
- Application Number
- CN202520589895.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-31
AI Technical Summary
In ship piping systems, radial vibrations caused by high-speed liquid flow are transmitted to the bulkheads through the tank penetrations, resulting in bulkhead structural vibrations that damage the ship's structural integrity and accelerate component fatigue wear.
It adopts a combination structure of metal outer disc, rubber parts and pipe connectors. A stop is set between the metal inner disc and the rubber parts. The rubber parts absorb vibration energy and distribute and disperse the vibration within the metal inner disc. The stop provides support and improves axial pressure resistance.
It effectively isolates pipeline vibration, prevents loosening of connections and fatigue of components, improves connection stability and structural pressure resistance, and extends the service life of ships.
Smart Images
Figure CN223953500U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a vibration isolator technical field especially relates to a cabin penetration vibration isolation device. BACKGROUND
[0002] In the field of ships, the internal pipeline system is complex, and a large number of pipelines need to pass through the bulkhead. In order to ensure the sealing of the bulkhead, the pipeline outer wall is usually rigidly connected with the bulkhead by a cabin penetration piece, and at this time the cabin penetration piece can only support and fix the pipeline.
[0003] However, when the pipeline transmits liquid, due to the high-speed flow of the liquid, radial vibration will be generated in the pipeline, which will be transmitted to the bulkhead through the cabin penetration piece, thereby causing secondary structural vibration of the bulkhead. As a result, the vibration will damage the integrity of the ship structure, accelerate the fatigue wear of the structural components, and shorten the service life of the ship.
[0004] Therefore, for the ship pipeline system, how to effectively isolate vibration is a technical problem that needs to be solved urgently at present. INVENTION CONTENTS
[0005] The main purpose of the utility model is to solve the above technical problems in the background art.
[0006] In order to achieve the above purpose, the utility model provides a cabin penetration vibration isolation device, which comprises a metal outer disc, a rubber piece and a pipeline connecting piece; the pipeline connecting piece comprises a metal inner disc, a plurality of connecting pipes are arranged in the metal inner disc, and a plurality of stops are symmetrically arranged on the two end faces of the metal inner disc; the rubber piece is arranged between the outer surface of the metal outer disc and the inner surface of the metal inner disc; and the metal outer disc is installed on the bulkhead.
[0007] Preferably, one end of the stop is connected to the metal inner disc, and the other end of the stop extends above the metal outer disc.
[0008] Preferably, the cross section of the stop is inverted L-shaped; the number of the stops is 2N, and N is a positive integer greater than or equal to 2.
[0009] Preferably, the end face of the rubber piece is provided with a boss corresponding to the position of the stop.
[0010] Preferably, the rubber piece is connected and fixed with the metal outer disc and the metal inner disc by an adhesive respectively.
[0011] Preferably, a first groove is arranged between the rubber piece and the metal outer disc.
[0012] Preferably, a second groove is arranged between the rubber piece and the connecting pipe.
[0013] Preferably, flanges are arranged at two ends of the connecting pipe respectively.
[0014] Preferably, the metal outer disc comprises a mounting ring and a mounting plate connected with the mounting ring; the mounting ring penetrates through the bulkhead, and the mounting plate is fixed on the bulkhead by bolts.
[0015] Preferably, an O-shaped sealing ring is arranged between the mounting plate and the bulkhead.
[0016] The cabin-penetrating vibration isolation device has the following beneficial effects:
[0017] 1) The cabin-penetrating vibration isolation device comprises a metal inner disc and a plurality of connecting pipes penetrating the metal inner disc, and the vibration energy received from the connecting pipes can be redistributed and dispersed within the range of the metal inner disc, so that the vibration energy is transmitted outward in a more moderate and more easily absorbed form; secondly, this arrangement can avoid problems such as loosening of the connection part, fatigue damage of the component, etc. caused by local vibration energy overload of the pipeline connecting piece, thereby improving the connection stability of the pipeline connecting piece and the parallel pipeline system.
[0018] 2) The cabin-penetrating vibration isolation device comprises a rubber piece arranged between the metal inner disc and the metal outer disc, and the vibration is isolated by the rubber piece; a plurality of stops are symmetrically arranged on the left and right end faces of the metal inner disc, and the rubber piece is supported by the stops, thereby improving the axial pressure resistance of the structure of the cabin-penetrating vibration isolation device. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.
[0020] Figure 1 Structure diagram of the cabin-penetrating vibration isolation device in an embodiment of the present application Figure 1 ;
[0021] Figure 2 Structure diagram of the cabin-penetrating vibration isolation device in an embodiment of the present application Figure 2 ;
[0022] Figure 3 Structure diagram of the cabin-penetrating vibration isolation device in an embodiment of the present application Figure 2 Cross-sectional view at A-A
[0023] Figure 4 Structure diagram of the cabin-penetrating vibration isolation device in an embodiment of the present application Figure 3 Structure diagram of the cabin-penetrating vibration isolation device in an embodiment of the present application
[0024] Figure 5 It is the structural schematic view of metal outer disc in one embodiment of the utility model;
[0025] Figure 6 It is the structural schematic view of rubber part in one embodiment of the utility model;
[0026] Figure 7 It is the structural schematic view of pipeline connecting piece in one embodiment of the utility model.
[0027] The serial number in the drawing is explained as follows:
[0028] 1, metal outer disc; 11, mounting ring; 12, mounting plate; 2, rubber part; 21, boss; 3, pipeline connecting piece; 31, connecting pipe; 32, stop; 33, metal inner disc; 4, flange. DETAILED DESCRIPTION
[0029] In order to better understand the above technical solutions, the exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to convey the scope of the present disclosure to those skilled in the art.
[0030] It should be understood that the specific embodiments described herein are only used to explain the present utility model and not to limit the present utility model.
[0031] It should be noted that in the embodiments of the present utility model, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the coordinate system shown in the drawings, and are only used to facilitate the description of the present utility model and simplify the description, and do not indicate or imply that the devices or parts referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present utility model.
[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0034] This utility model provides a trans-cabin vibration isolation device, referring to... Figures 1 to 4 In one embodiment, the trans-cabin vibration isolation device includes a metal outer disk 1, a rubber component 2, and a pipe connector 3; the pipe connector 3 includes a metal inner disk 33, through which multiple connecting pipes 31 are inserted, and multiple stops 32 are symmetrically arranged at both ends of the metal inner disk 33; the rubber component 2 is disposed between the outer surface of the metal outer disk 1 and the inner surface of the metal inner disk 33; the metal outer disk 1 is mounted on the bulkhead.
[0035] Specifically, the cabin-penetrating vibration isolation device of the embodiment includes a metal outer disc 1, a rubber part 2, and a pipe connecting piece 3 for connecting the parallel pipeline system. The metal outer disc 1 and the pipe connecting piece 3 are made of the same metal material, preferably Q355B steel. The rubber part 2 is installed between the metal outer disc 1 and the pipe connecting piece 3 to isolate the radial vibration generated by the pipe connecting piece 3, so as to prevent the radial vibration generated by the pipe connecting piece 3 from being transmitted to the metal outer disc 1 and the bulkhead connected to the metal outer disc 1. The pipe connecting piece 3 includes a plurality of connecting pipes 31, a plurality of stops 32, and a metal inner disc 33. The middle sections of the plurality of connecting pipes 31 are installed in the metal inner disc 33, and the plurality of connecting pipes 31 are respectively connected to corresponding pipelines in the parallel pipeline system. The plurality of stops 32 are symmetrically arranged on the left and right end faces of the metal inner disc 33, that is, N first stops are arranged on the left end face of the metal inner disc 33, and N second stops corresponding to the first stops are arranged on the right end face of the metal inner disc 33. The first stops and the second stops can support the rubber part 2 on both sides. It can be understood that the size of the cabin-penetrating vibration isolation device can be set according to the installation space requirement of the bulkhead.
[0036] For the pipe connecting piece 3, the number of connecting pipes 31 is set according to the number of pipelines in the parallel pipeline system, and the connecting pipes 31 are arranged in a specific manner in the metal outer disc 1. For example, when the parallel pipeline system is a two-pipeline system, the number of connecting pipes 31 is two, and the connecting pipes 31 are arranged in parallel in the metal outer disc 1. When the parallel pipeline system is a three-pipeline system, the number of connecting pipes 31 is three, and the connecting pipes 31 are arranged in an equidistant or equilateral triangular manner in the metal outer disc 1. When the parallel pipeline system is a four-pipeline system, the number of connecting pipes 31 is four, and the connecting pipes 31 are arranged in a rectangular array in the metal outer disc 1.
[0037] The working principle of the cabin-penetrating vibration isolation device is as follows: when the liquid medium in each pipeline of the parallel pipeline system passes through the connecting pipes 31 of the cabin-penetrating vibration isolation device at a high speed, the connecting pipes 31 will generate radial vibration. The metal inner disc 33 fixedly connected to the connecting pipes 31 re-distributes and disperses the vibration energy received from the connecting pipes 31 within its own range and uniformly transmits the vibration energy to the rubber part 2 through the disc structure. The rubber part 2 absorbs and consumes the vibration energy by using its elasticity and damping characteristics, thereby achieving the effect of vibration isolation. When one side of the cabin-penetrating vibration isolation device is subjected to water pressure, the other side of the cabin-penetrating vibration isolation device is supported by the stops 32, thereby improving the axial pressure resistance of the cabin-penetrating vibration isolation device structure and ensuring that the cabin-penetrating vibration isolation device structure is not damaged by water pressure.
[0038] In summary, the cabin-penetrating vibration isolation device of the embodiment has the following beneficial effects:
[0039] 1) The pipeline connecting piece 3 of the cabin-penetrating vibration isolation device of the embodiment comprises a metal inner disc 33 and a plurality of connecting pipes 31 penetrating the metal inner disc 33, and the vibration energy received from each connecting pipe 31 can be redistributed and dispersed within the scope of the metal inner disc 33, so that the vibration energy is transmitted outward in a more moderate and more easily absorbed form. Secondly, through this arrangement, the problem of loosening of the connecting part and fatigue damage of the component caused by local vibration energy overload of the pipeline connecting piece 3 can be avoided, and the connection stability of the pipeline connecting piece 3 and the parallel pipeline system is improved.
[0040] 2) The cabin-penetrating vibration isolation device of the embodiment is provided with a rubber piece 2 between the metal inner disc 33 and the metal outer disc 1, vibration isolation is performed through the rubber piece 2, and a plurality of stops 32 are symmetrically arranged on the left and right end faces of the metal inner disc 33, which support the rubber piece 2, thereby improving the axial pressure resistance of the structure of the cabin-penetrating vibration isolation device.
[0041] In a preferred embodiment, referring to Figure 1 , Figure 3 and Figure 4 , one end of the stop 32 is connected to the metal inner disc 33, and the other end of the stop 32 extends above the metal outer disc 1.
[0042] Specifically, the first end of the stop 32 is connected to the outer edge of the metal inner disc 33, and the end of the stop 32 extends above the metal outer disc 1, at this time, the end of the stop 32 has a certain distance from the end face of the metal outer disc 1, and the distance is greater than the axial vibration distance of the pipeline connecting piece 3. Through this arrangement, it can effectively avoid the secondary resonance between the stop 32 and the metal outer disc 1, thereby ensuring that the vibration isolation performance of the cabin-penetrating vibration isolation device is not disturbed.
[0043] In a preferred embodiment, the cross-sectional shape of the stop 32 is inverted L-shaped; the number of the plurality of stops 32 is 2N, and N≥2.
[0044] In the embodiment, the number of stops 32 is set according to the pressure resistance design requirements of the rubber piece 2. For example, when the number of connecting pipes 31 is 4, and the connecting pipes 31 are arranged in a rectangular array in the metal outer disc 1, a total of 8 stops 32 are arranged, and each stop 32 is arranged at the middle position of two adjacent connecting pipes 31, as shown in Figure 7 .
[0045] It should be noted that the cross-sectional shape of the stop 32 can also be rectangular, as shown in Figure 3 .
[0046] In a preferred embodiment, referring to Figure 6 , the end face of the rubber piece 2 is provided with a boss 21 corresponding to the position of the stop 32.
[0047] Specifically, the rubber part 2 of the embodiment is provided with a boss 21 at the left and right end surfaces opposite the lower part of the stopper 32. The boss 21 and the stopper 32 can be connected in a small gap fit mode or a gapless connection mode. The number of the boss 21 is the same as that of the stopper 32. The cross-sectional shape of the boss 21 is any one of a triangle, a rectangle, and a trapezoid. Preferably, the cross-section of the boss 21 is a trapezoid.
[0048] It can be understood that the embodiment can meet the radial stiffness design requirement of the cabin-penetrating vibration isolation device by providing the boss 21. At the same time, when one side of the cabin-penetrating vibration isolation device is subjected to water pressure, the rubber part 2 can ensure a certain pressure resistance, so that the rubber part 2 can withstand greater pressure in extreme working conditions.
[0049] In a preferred embodiment, the rubber part 2 is connected and fixed to the metal outer disc 1 and the metal inner disc 33 by an adhesive.
[0050] In the embodiment, the adhesive can be a commercially available adhesive, such as a TMT-P1 or TMT-C1 adhesive produced by Zhuzhou Times New Material Technology Co., Ltd.
[0051] It can be understood that before the rubber part 2 is bonded to the metal workpiece (including the metal outer disc 1 and the pipeline connecting piece 3) by the adhesive, the metal workpiece can be subjected to degreasing, roughening, and dust removal treatment to improve the bonding strength between the rubber part 2 and the metal workpiece, thereby realizing the structural stability and sealing property of the device.
[0052] In a preferred embodiment, a first groove is provided between the rubber part 2 and the metal outer disc 1.
[0053] Specifically, the rubber part 2 of the embodiment is provided with a first groove on the outer surface. Correspondingly, the inner surface of the metal outer disc 1 (or the mounting ring 11) is provided with a first protrusion matched with the first groove. The cross-section of the first groove is a rectangle or a semicircle, and the number of the first groove is set according to requirements. For example, when the cross-section of the first groove is a rectangle, the number of the first groove is set to one. It can be understood that the cabin-penetrating vibration isolation device of the embodiment can improve the connection stability between the rubber part 2 and the metal outer disc 1 by providing the first groove between the rubber part 2 and the metal outer disc 1.
[0054] In a preferred embodiment, a second groove is provided between the rubber part 2 and the metal inner disc 33.
[0055] Specifically, the rubber part 2 in the embodiment has a second groove on the inner surface, and the metal inner disc 33 has a second protrusion matched with the second groove. The cross section of the second groove is in the shape of a rectangle or a semicircle, and the number of the second grooves is set according to requirements. For example, when the cross section of the second groove is in the shape of a rectangle, the number of the second grooves is set to one. It can be understood that the cabin-penetrating vibration isolation device in the embodiment can improve the connection stability between the rubber part 2 and the pipeline connecting part 3 by setting the second groove between the rubber part 2 and the metal inner disc 33.
[0056] It should be noted that, for the convenience of processing, the shape, size and number of the second groove are the same as those of the first groove.
[0057] In a preferred embodiment, referring to Figure 1 and Figure 3 , the connecting pipe 31 has a flange 4 at each end.
[0058] It can be understood that the connecting pipe 31 in the embodiment is connected to the pipeline for transmitting liquid medium through a flange 4 at each end, thereby realizing reliable connection between the pipeline and the cabin-penetrating vibration isolation device.
[0059] In a preferred embodiment, referring to Figure 1 and Figure 5 , the metal outer disc 1 comprises a mounting ring 11 and a mounting plate 12 connected to the mounting ring 11; the mounting ring 11 penetrates the bulkhead, and the mounting plate 12 is fixed on the bulkhead by bolts.
[0060] It can be understood that the metal outer disc 1 in the embodiment mainly comprises a mounting ring 11 and a mounting plate 12. During installation, the outer surface of the mounting ring 11 penetrates the bulkhead and is limited by the mounting plate 12, and then is fixed by a plurality of bolts, thereby achieving stable connection between the cabin-penetrating vibration isolation device and the bulkhead. Preferably, the model of the bolt can be M12, and the number of the bolts is set according to requirements.
[0061] In a preferred embodiment, referring to Figure 2 , an O-shaped sealing ring is arranged between the mounting plate 12 and the bulkhead.
[0062] It can be understood that the cabin-penetrating vibration isolation device in the embodiment has an O-shaped sealing ring arranged between the mounting plate 12 and the bulkhead, and the O-shaped sealing ring has perforations matched with the bolts, thereby improving the waterproof performance of the cabin-penetrating vibration isolation device.
[0063] The above are only preferred embodiments of the present application, and do not limit the patent range of the present application, and any equivalent structure or equivalent process transformation made by using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection range of the present application.
Claims
1. A through-cabin vibration isolation device, characterized by, The cabin-penetrating vibration isolation device comprises a metal outer disc (1), a rubber piece (2) and a pipeline connecting piece (3); the pipeline connecting piece (3) comprises a metal inner disc (33), a plurality of connecting pipes (31) are arranged in the metal inner disc (33), a plurality of stops (32) are symmetrically arranged on the two end faces of the metal inner disc (33); the rubber piece (2) is arranged between the outer surface of the metal outer disc (1) and the inner surface of the metal inner disc (33); and the metal outer disc (1) is installed on a bulkhead.
2. The through-cabin vibration isolation device of claim 1, wherein, One end of the stop (32) is connected to the metal inner disc (33), and the other end of the stop (32) extends above the metal outer disc (1).
3. The through-cabin vibration isolation apparatus of claim 2, wherein, The cross section of the stop (32) is in inverted L shape; the number of the stop (32) is 2N, and N is a positive integer greater than or equal to 2.
4. The through-cabin vibration isolation apparatus of claim 1, wherein, The end face of the rubber piece (2) is provided with a boss (21) corresponding to the position of the stop (32).
5. The through-cabin vibration isolation apparatus of claim 1, wherein, The rubber piece (2) is fixedly connected with the metal outer disc (1) and the metal inner disc (33) by an adhesive respectively.
6. The through-cabin vibration isolation apparatus of claim 1, wherein, A first groove is arranged between the rubber piece (2) and the metal outer disc (1).
7. The through-cabin vibration isolation apparatus of claim 5, wherein, A second groove is arranged between the rubber piece (2) and the metal inner disc (33).
8. The through-cabin vibration isolation apparatus of claim 1, wherein, Flanges (4) are arranged at the two ends of the connecting pipe (31) respectively.
9. The through-cabin vibration isolation apparatus of claim 1, wherein, The metal outer disc (1) comprises a mounting ring (11) and a mounting plate (12) connected with the mounting ring (11); the mounting ring (11) penetrates through the bulkhead, and the mounting plate (12) is fixed on the bulkhead by bolts.
10. The through-cabin vibration isolation apparatus of claim 9, wherein, An O-shaped sealing ring is arranged between the mounting plate (12) and the bulkhead.