Submarine cable vibration reduction combined mechanism and cable vibration reduction combined support

Abstract

The utility model belongs to the technical field of cable laying, and particularly relates to a submarine cable vibration reduction combination mechanism and a cable vibration reduction combination support, and the submarine cable vibration reduction combination mechanism comprises a first vibration reduction unit (1) and a second vibration reduction unit (2). The first vibration reduction unit (1) comprises a first I-shaped shaft (101), a first elastic rubber assembly (102) and a first outer frame (103); the second vibration reduction unit (2) comprises a second I-shaped shaft (201), a second elastic rubber assembly (202) and a second outer frame (203); and the first I-shaped shaft (101) is fixedly connected with the second I-shaped shaft (201) through a connecting shaft (3). A cable vibration reduction combined support comprises a cable bracket (4), a fixing plate (5) and a submarine cable vibration reduction combined mechanism. The utility model has the advantages of convenient maintenance, stable structure, adjustable damping device parameters, ideal damping and noise reduction effects, large cable assembly amount, and overload protection function.

Description

Technical Field

[0001] This utility model belongs to the field of cable laying technology, specifically relating to a submarine cable vibration damping assembly mechanism and a cable vibration damping assembly bracket. Background Technology

[0002] Submarines use power cables as a crucial component of their power transmission and distribution systems. These cables transmit power from the generator room to various shipboard systems, equipment, and devices to meet the power supply needs of a wide range of electrical equipment. The specifications, cross-sectional area, and material selection of submarine cables vary depending on the specific ship type, power requirements, and electrical system design. Submarine cables are diverse and numerous. Coupled with the vibrations and impacts experienced during submarine navigation, improper cable laying and securing can lead to chaotic cable layout, signal crosstalk, and even fatigue fracture. Therefore, during cable laying and securing, appropriate cable fasteners should be selected based on the cable type and purpose to ensure reliable cable operation. Submarine cables are generally composed of multi-core cables, with each core used to transmit different electrical or signal signals. These cables typically consist of copper conductors, insulation layers, sheaths, and outer sheaths to meet the requirements of the ship's electrical system. However, existing ship cables are susceptible to significant impacts and vibrations during ship navigation. Prolonged vibrations can cause the cables to detach or loosen at the interface with electrical equipment, resulting in poor contact and potentially leading to safety accidents.

[0003] Chinese patent CN1945083A discloses an integral raised tension cable tray for ships and marine engineering, including a support plate and a guide plate. Its key feature is that the support plate and guide plate are an integrated trapezoidal structure. Each section of the support plate, after being processed by an integral stamping process, has reinforcing ribs on its concave and convex surfaces. The upper corners of the guide plates at both ends of the cable tray are "R"-shaped, and the connection between the guide plate and the support plate is also "R"-shaped, forming a reinforcing rib. The side walls of the guide plates also have continuous and regularly spaced connecting holes. Compared with existing technologies, this invention uses an integral stamping process, eliminating the need for welding the guide plate and support plate of the cable tray. However, the above cable tray does not consider vibration reduction and noise reduction factors within the ship. Currently, there is no relevant data reported on vibration reduction for submarine cables. For other cable vibration reduction methods, a fixing ring is generally used to enclose the cable, and a vibration damping device is installed below the fixing ring. The above technical solution has a complex structure, making it difficult to meet the vibration reduction requirements of two directions of cables and multiple cables simultaneously, and the adjustment of the vibration damping device parameters is inconvenient. Utility Model Content

[0004] This utility model aims to overcome the shortcomings of the prior art and provide a submarine cable vibration damping assembly mechanism and cable vibration damping assembly bracket that is simple in structure, easy to maintain, stable in structure, has adjustable vibration damping device parameters, ideal vibration damping and noise reduction effect, large cable assembly capacity, and overload protection function.

[0005] To solve the above-mentioned technical problems, this utility model is implemented as follows:

[0006] A vibration damping assembly for submarine cables includes a first vibration damping unit and a second vibration damping unit;

[0007] The first vibration damping unit includes a first I-beam, a first elastic rubber assembly, and a first outer frame; the first I-beam and the first elastic rubber assembly are placed inside the first outer frame, and the first elastic rubber assembly is disposed between the outer wall of the first I-beam and the inner wall of the first outer frame;

[0008] The second vibration damping unit includes a second I-beam, a second elastic rubber assembly, and a second outer frame; the second I-beam and the second elastic rubber assembly are placed inside the second outer frame, and the second elastic rubber assembly is disposed between the outer wall of the second I-beam and the inner wall of the second outer frame;

[0009] The first I-beam shaft in the first vibration damping unit and the second I-beam shaft in the second vibration damping unit are fixedly connected by a connecting shaft.

[0010] Furthermore, the first outer frame of this utility model includes a first groove-shaped outer shell and a first cover plate fixedly connected thereto; the second outer frame includes a second groove-shaped outer shell and a second cover plate fixedly connected thereto.

[0011] A cable vibration damping assembly includes a cable tray, a fixing plate, and a submarine cable vibration damping assembly mechanism; the fixing plate is perpendicular to the cable tray; the second outer frame base of the submarine cable vibration damping assembly mechanism is fixedly connected to the fixing plate; one side of the first outer frame of the submarine cable vibration damping assembly mechanism is fixedly connected to the cable tray.

[0012] The submarine cable vibration damping assembly includes a first vibration damping unit and a second vibration damping unit;

[0013] The first vibration damping unit includes a first I-beam, a first elastic rubber assembly, and a first outer frame; the first I-beam and the first elastic rubber assembly are placed inside the first outer frame, and the first elastic rubber assembly is disposed between the outer wall of the first I-beam and the inner wall of the first outer frame;

[0014] The second vibration damping unit includes a second I-beam, a second elastic rubber assembly, and a second outer frame; the second I-beam and the second elastic rubber assembly are placed inside the second outer frame, and the second elastic rubber assembly is disposed between the outer wall of the second I-beam and the inner wall of the second outer frame;

[0015] The first I-beam shaft in the first vibration damping unit and the second I-beam shaft in the second vibration damping unit are fixedly connected by a connecting shaft.

[0016] Furthermore, the fixing plate of this utility model includes four units; the submarine cable vibration damping assembly also includes four units.

[0017] This invention features a simple structure, convenient maintenance, stable structure, adjustable vibration damping device parameters, ideal vibration damping and noise reduction effects, large cable loading capacity, and overload protection. The static stiffness of this invention can be achieved by extending the connecting shaft beyond the I-beam, making it suitable for various load-bearing weights and easy to operate.

[0018] Compared with the prior art, this utility model has the following characteristics:

[0019] a. Different lengths of the connecting shaft of the vibration damping combination mechanism and different installation positions on the cable tray can meet the vibration damping requirements of cables of different qualities. At the same time, with the help of the finite element optimization function, its configuration can be optimized for easy implementation.

[0020] b. This vibration reduction assembly meets the vibration reduction requirements of the cable in the transverse, axial and longitudinal directions.

[0021] c. This vibration damping assembly can meet the technical requirements for simultaneous vibration damping of multiple cables.

[0022] d. This vibration damping assembly occupies a small space, meeting the installation requirements of the extremely confined space of a submarine.

[0023] e. This vibration damping assembly has an overload protection function. When the cable is subjected to a large inertial force, it prevents it from continuing to move and prevents the first and second elastic rubber components from being damaged due to excessive compression. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The scope of protection of the present invention is not limited to the descriptions below.

[0025] Figure 1 This is a schematic diagram of the overall structure of the submarine cable vibration reduction assembly of this utility model;

[0026] Figure 2 This is a schematic diagram of the overall structure of the cable vibration damping combined support of this utility model;

[0027] Figure 3 This is the overall assembly drawing of the cable vibration damping combined bracket of this utility model.

[0028] In the figure: 1. First vibration damping unit; 101. First I-beam shaft; 102. First elastic rubber assembly; 103. First outer frame; 104. First channel-shaped outer shell; 105. First cover plate; 2. Second vibration damping unit; 201. Second I-beam shaft; 202. Second elastic rubber assembly; 203. Second outer frame; 204. Second channel-shaped outer shell; 205. Second cover plate; 3. Connecting shaft; 4. Cable bracket; 5. Fixing plate. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1-3 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically by way of example in the following paragraphs with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, used only to facilitate and clarify the illustration of the embodiments of this utility model. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intervening component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the utility model. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] To evade sonar detection, submarines have extremely stringent requirements regarding vibration and noise levels. Current research indicates that the vibration of submarine cables is also significant, as this vibration is transmitted to the bulkheads and affects the submarine's acoustic performance. Therefore, this invention designs a vibration reduction device for submarine cables. Figures 1-3 As shown, the submarine cable vibration damping assembly includes a first vibration damping unit 1 and a second vibration damping unit 2;

[0031] The first vibration damping unit 1 includes a first I-beam shaft 101, a first elastic rubber assembly 102, and a first outer frame 103; the first I-beam shaft 101 and the first elastic rubber assembly 102 are placed inside the first outer frame 103, and the first elastic rubber assembly 102 is disposed between the outer wall of the first I-beam shaft 101 and the inner wall of the first outer frame 103.

[0032] The second vibration damping unit 2 includes a second I-beam shaft 201, a second elastic rubber assembly 202, and a second outer frame 203; the second I-beam shaft 201 and the second elastic rubber assembly 202 are placed inside the second outer frame 203, and the second elastic rubber assembly 202 is disposed between the outer wall of the second I-beam shaft 201 and the inner wall of the second outer frame 203.

[0033] The first I-beam 101 in the first vibration damping unit 1 and the second I-beam 201 in the second vibration damping unit 2 are fixedly connected by a connecting shaft 3.

[0034] The first outer frame 103 of this utility model includes a first groove-shaped outer shell 104 and a first cover plate 105 fixedly connected thereto; the second outer frame 203 includes a second groove-shaped outer shell 204 and a second cover plate 205 fixedly connected thereto.

[0035] See Figure 3 As shown, in the application scenario of the submarine cable vibration damping assembly, the cable vibration damping assembly bracket includes a cable bracket 4, a fixing plate 5, and the submarine cable vibration damping assembly; the fixing plate 5 is perpendicular to the cable bracket 9; the base of the second outer frame 203 in the submarine cable vibration damping assembly is fixedly connected to the fixing plate 5; one side of the first outer frame 103 in the submarine cable vibration damping assembly is fixedly connected to the cable bracket 4.

[0036] The submarine cable vibration damping assembly includes a first vibration damping unit 1 and a second vibration damping unit 2. The first vibration damping unit 1 includes a first I-beam 101, a first elastic rubber component 102, and a first outer frame 103. The first I-beam 101 and the first elastic rubber component 102 are placed inside the first outer frame 103, with the first elastic rubber component 102 positioned between the outer wall of the first I-beam 101 and the inner wall of the first outer frame 103. The second vibration damping unit 2 includes a second I-beam 201, a second elastic rubber component 202, and a second outer frame 203. The second I-beam 201 and the second elastic rubber component 202 are placed inside the second outer frame 203, with the second elastic rubber component 202 positioned between the outer wall of the second I-beam 201 and the inner wall of the second outer frame 203. The first I-beam 101 in the first vibration damping unit 1 and the second I-beam 201 in the second vibration damping unit 2 are fixedly connected by a connecting shaft 3. The fixing plate 5 of this invention includes four units; the submarine cable vibration damping assembly consists of four units.

[0037] See Figure 3As shown, in the specific design, the cable of this utility model is arranged axially on the cable bracket 4 to achieve vibration reduction. This utility model can better meet the requirements of vibration reduction stiffness and damping, and can meet the vibration reduction requirements in three directions. The first elastic rubber component 102 and the second elastic rubber component 202 each have one piece on their upper and lower sides, which are pressed against the first outer frame 103 and the second outer frame 203 to achieve vibration reduction. The first I-beam 101 and the second I-beam 201 are threadedly connected by a connecting shaft 3. By adjusting the length of the connecting shaft 3 extending beyond the first I-beam 101 and the second I-beam 201, the static stiffness of the vibration reduction assembly can be adjusted, thereby adjusting the vibration reduction effect to meet the vibration reduction requirements of different cables. The first I-beam 101 and the second I-beam 201, and the first elastic rubber component 102 and the second elastic rubber component 202 are sequentially installed inside the first outer frame 103 and the second outer frame 203, respectively. The first channel-shaped outer shell 104 is fixedly connected to the first cover plate 105; the second channel-shaped outer shell 204 is fixedly connected to the second cover plate 205. The submarine cable vibration damping assembly is fixedly connected to the cable tray by bolts or other means. One cable tray connects four submarine cable vibration damping assemblies, involving eight vibration damping structural units. The bottom of the second channel-shaped outer shell 204 is connected to the fixing plate 5 (right-angle bent plate) by bolts and nuts. The right-angle bent plate is installed on the hull, making installation convenient and ensuring overall stability. The first I-beam 101 and the second I-beam 201 have protrusions on both sides. When the load exceeds the rated load, the protrusions replace the first elastic rubber component 102 and the second elastic rubber component 202 in contact with the first channel-shaped outer shell 104 and the second channel-shaped outer shell 204, thus providing overload protection.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A submarine cable damping assembly combination characterized by, It includes a first vibration damping unit (1) and a second vibration damping unit (2); The first vibration damping unit (1) includes a first I-beam shaft (101), a first elastic rubber assembly (102), and a first outer frame (103); the first I-beam shaft (101) and the first elastic rubber assembly (102) are placed inside the first outer frame (103), and the first elastic rubber assembly (102) is disposed between the outer wall of the first I-beam shaft (101) and the inner wall of the first outer frame (103); The second vibration damping unit (2) includes a second I-beam (201), a second elastic rubber assembly (202), and a second outer frame (203); the second I-beam (201) and the second elastic rubber assembly (202) are placed inside the second outer frame (203), and the second elastic rubber assembly (202) is disposed between the outer wall of the second I-beam (201) and the inner wall of the second outer frame (203); The first I-beam (101) in the first vibration damping unit (1) and the second I-beam (201) in the second vibration damping unit (2) are fixedly connected by a connecting shaft (3).

2. The submarine cable damping assembly of claim 1, wherein: The first outer frame (103) includes a first groove-shaped outer shell (104) and a first cover plate (105) fixedly connected thereto; the second outer frame (203) includes a second groove-shaped outer shell (204) and a second cover plate (205) fixedly connected thereto.

3. A cable damping assembly support, characterized by It includes a cable tray (4), a fixing plate (5), and a submarine cable vibration damping assembly; the fixing plate (5) is perpendicular to the cable tray (4); the base of the second outer frame (203) in the submarine cable vibration damping assembly is fixedly connected to the fixing plate (5); one side of the first outer frame (103) in the submarine cable vibration damping assembly is fixedly connected to the cable tray (4); The submarine cable vibration damping assembly includes a first vibration damping unit (1) and a second vibration damping unit (2). The first vibration damping unit (1) includes a first I-beam shaft (101), a first elastic rubber assembly (102), and a first outer frame (103); the first I-beam shaft (101) and the first elastic rubber assembly (102) are placed inside the first outer frame (103), and the first elastic rubber assembly (102) is disposed between the outer wall of the first I-beam shaft (101) and the inner wall of the first outer frame (103); The second vibration damping unit (2) includes a second I-beam (201), a second elastic rubber assembly (202), and a second outer frame (203); the second I-beam (201) and the second elastic rubber assembly (202) are placed inside the second outer frame (203), and the second elastic rubber assembly (202) is disposed between the outer wall of the second I-beam (201) and the inner wall of the second outer frame (203); The first I-beam (101) in the first vibration damping unit (1) and the second I-beam (201) in the second vibration damping unit (2) are fixedly connected by a connecting shaft (3).

4. The cable damping assembly of claim 3, wherein: The fixing plate (5) includes 4 units; the submarine cable vibration damping assembly consists of 4 units.

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