Flexible cable damping device for ships and warships

Abstract

The utility model belongs to the technical field of ship cable laying, and particularly relates to a flexible cable damping device for ships, which comprises an upper plate (1), a damping mechanism (2) and welding legs (3). The damping mechanism (2) comprises a cylindrical rubber ring (4) and a U-shaped sheet assembly; the U-shaped sheet assembly is arranged in a cavity of the cylindrical rubber ring (4); the U-shaped sheet assembly comprises an upper U-shaped sheet (5) and a lower U-shaped sheet (6); the upper U-shaped piece (5) and the lower U-shaped piece (6) are arranged at a certain interval in a nested mode. The upper U-shaped sheet (5) is fixedly connected with the upper plate (1) through the cylindrical rubber ring (4) by a sunk screw (8); and the lower U-shaped sheet (6) is fixedly connected with the welding leg (3) through a bolt (9) via the cylindrical rubber ring (4). The shock absorber is simple in structure, convenient to maintain, high in stability, adjustable in shock absorption rigidity and ideal in shock absorption and noise reduction effect, and has an overload protection function.

Description

Technical Field

[0001] The utility model belongs to the technical field of ship cable laying, and in particular relates to a flexible cable vibration reduction device for ships. Background Art

[0002] Ships use power cables as an important part of their power transmission and distribution systems. These cables are used to transmit electricity from the generator room to various ship systems, equipment, and devices to meet the power supply needs of various electrical equipment on board. The specifications, cross-sectional area, and material selection of ship cables will also vary depending on the specific ship type, power requirements, and electrical system design. Ship cables are generally composed of multi-core cables, each of which is used to transmit different power or signals. These cables are usually composed of copper conductors, insulation layers, sheaths, and outer sheaths to meet the requirements of ship electrical systems. Chinese patent CN102679041A discloses an integral convex drawn and stamped cable hook bracket for ships and marine engineering, including a hook as the main body to carry the cable, a locking plate for fixing the cable, and a fixed support foot for the cable hook installation. The hook bracket, the fixed locking plate, and the fixed support foot are all made using an integral convex drawn and stamped process, and are fixed by hooking and plugging bolts together, without the need for welding to form a whole. The present invention changes the traditional manufacturing process, changing the original steel plate thickness of 3.0mm to 4.0mm to 2.0mm thick steel plate, which not only improves the safe load capacity, but also reduces the weight of a single product by more than 25%. It has the advantages of lightweight structure, beautiful appearance, strong load-bearing capacity, strong corrosion resistance, easy installation, easy replacement, and low price. It is particularly suitable for use on ships and marine engineering. The cable tightening hook bracket disclosed in the above-mentioned document has poor shock absorption effect and limited cable laying capacity. Chinese patent CN219371922U discloses a cable elastic support. The cable elastic support includes a U-shaped tightening hook cable bracket, an elastic vibration damper, a mounting foot and a fixing bolt. The U-shaped tightening hook cable bracket is fixedly connected to the elastic vibration damper by a locking bolt. One end of the mounting foot is fixedly connected to the elastic vibration damper by a fixing bolt, and the other end is welded to the bulkhead. The support is used for laying cables on underwater submersibles and is used to fix cables connected to vibration sources such as engines and generators. While the aforementioned technical solution somewhat addressed the noise issue caused by the vibration source's frequency being transmitted to the submersible's outer wall via the cable, experimental verification revealed that its vibration and noise reduction effects were suboptimal, and its structural stability and ease of maintenance fell short of expectations. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the existing technology and provide a flexible cable vibration reduction device for ships with a simple structure, easy maintenance, high stability, adjustable vibration reduction stiffness, ideal shock absorption and noise reduction effect, large cable laying capacity, and a limit protection function.

[0004] In order to solve the above technical problems, the utility model is achieved as follows:

[0005] A flexible cable vibration reduction device for ships, comprising an upper plate, a vibration reduction mechanism and a welding foot; the top of the vibration reduction mechanism is fixedly connected to the bottom of the upper plate; the welding foot is fixedly connected to the bottom of the vibration reduction mechanism; the vibration reduction mechanism comprises a cylindrical rubber ring and a U-shaped piece assembly; the U-shaped piece assembly is placed in the cavity of the cylindrical rubber ring; the U-shaped piece assembly comprises an upper U-shaped piece and a lower U-shaped piece; the upper U-shaped piece and the lower U-shaped piece are spaced a certain distance apart and are nested; the upper U-shaped piece is fixedly connected to the upper plate via a countersunk screw through a cylindrical rubber ring; the lower U-shaped piece is fixedly connected to the welding foot via a bolt through a cylindrical rubber ring.

[0006] Furthermore, the utility model has binding holes for cable binding on both sides of the upper plate.

[0007] Furthermore, the shock absorbing mechanism of the present invention comprises two sets, which are respectively arranged at the two ends of the bottom of the upper plate.

[0008] The utility model has a simple structure, easy maintenance, high stability, adjustable vibration damping stiffness, ideal vibration damping and noise reduction effect, and an overload protection function. When the cylindrical rubber ring is subjected to extreme loads due to excessive deformation in three directions, the nested U-shaped pieces will play a protective role to prevent the rubber from being damaged due to excessive deformation. The vibration damping stiffness of the utility model can be achieved by adjusting the overall width of the rubber to adapt to various load-bearing weights, and the operation is convenient. Under the condition of the same cable laying amount, the utility model has better vibration damping and noise reduction effects. This ship-use flexible cable vibration damping device mode is suitable for scenarios with a large amount of cable laying. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. The scope of protection of the present invention is not limited to the following description.

[0010] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0011] Figure 2 This is a schematic diagram of the utility model in use;

[0012] Figure 3 For this utility model Figure 1 Top view of .

[0013] In the figure: 1. Upper plate; 2. Shock-absorbing mechanism; 3. Welding foot; 4. Cylindrical rubber ring; 5. Upper U-shaped piece; 6. Lower U-shaped piece; 7. Binding hole; 8. Countersunk screw; 9. Bolt. DETAILED DESCRIPTION

[0014] The following is combined with Figures 1 to 3The principles and features of the present invention are described, and the examples provided are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. The following paragraphs describe the present invention in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are in a highly simplified form and are not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention. It should be noted that when a component is referred to as being "fixed to" another component, it may be directly attached to the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it may be directly attached to the other component or there may be an intermediate component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be an intermediate component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one skilled in the art to which the present invention pertains. The terms used in the present specification are for the purpose of describing specific embodiments only and are not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0015] See also Figures 1 to 3 As shown, a flexible cable vibration damping device for ships comprises an upper plate 1, a damping mechanism 2, and a weld foot 3. The top of the damping mechanism 2 is fixedly connected to the bottom of the upper plate 1; the weld foot 3 is fixedly connected to the bottom of the damping mechanism 2. The damping mechanism 2 comprises a cylindrical rubber ring 4 and a U-shaped piece assembly; the U-shaped piece assembly is placed within the cavity of the cylindrical rubber ring 4; the U-shaped piece assembly comprises an upper U-shaped piece 5 and a lower U-shaped piece 6; the upper U-shaped piece 5 and the lower U-shaped piece 6 are spaced a certain distance apart and nested together. The upper U-shaped piece 5 is fixedly connected to the upper plate 1 via countersunk screws 8 through the cylindrical rubber ring 4; the lower U-shaped piece 6 is fixedly connected to the weld foot 3 via bolts 9 through the cylindrical rubber ring 4. The present invention provides lashing holes 7 on both sides of the upper plate 1 for cable lashing. The present invention comprises two sets of damping mechanisms 2, one at each end of the bottom of the upper plate 1.

[0016] In the specific design, the cables of the present invention are laid along the length direction of the upper plate. The upper plate 1 of the present invention is provided with a countersunk hole, which is fixed to the elastomer with a countersunk screw to prevent interference with the cable. Binding holes 7 for cable binding are provided on both sides of the upper plate 1. The bottom of the upper plate 1 is a shock-absorbing mechanism 2. The shock-absorbing mechanism 2 includes a cylindrical rubber ring 4 with a hollow structure and a U-shaped piece assembly; the U-shaped piece assembly is placed in the cavity of the cylindrical rubber ring 4; the U-shaped piece assembly includes an upper U-shaped piece 5 and a lower U-shaped piece 6; the upper U-shaped piece 5 and the lower U-shaped piece 6 are spaced a certain distance apart and are nested. This structure can provide vibration damping stiffness in three directions, and the overall width of the cylindrical rubber ring 4 can be changed with the width of the plate, which is convenient for processing and assembly and meets the vibration damping requirements of cables of different qualities. The cylindrical rubber ring 4 is fitted with two U-shaped pieces: an upper U-shaped piece 5 and a lower U-shaped piece 6. These U-shaped pieces are nested together to provide a protective stop. When the cylindrical rubber ring 4 deforms excessively in three directions, they protect it from damage. The bottom leg is welded to the bottom surface with angle steel, ensuring stability.

[0017] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flexible cable vibration reduction device for ships, characterized in that: The invention comprises an upper plate (1), a shock absorbing mechanism (2) and a welding foot (3); the top of the shock absorbing mechanism (2) is fixedly connected to the bottom of the upper plate (1); the welding foot (3) is fixedly connected to the bottom of the shock absorbing mechanism (2); the shock absorbing mechanism (2) comprises a cylindrical rubber ring (4) and a U-shaped sheet assembly; the U-shaped sheet assembly is placed in the cavity of the cylindrical rubber ring (4); the U-shaped sheet assembly comprises an upper U-shaped sheet (5) and a lower U-shaped sheet (6); the upper U-shaped sheet (5) and the lower U-shaped sheet (6) are spaced a certain distance apart and are nested; the upper U-shaped sheet (5) is fixedly connected to the upper plate (1) through the cylindrical rubber ring (4) by a countersunk screw (8); the lower U-shaped sheet (6) is fixedly connected to the welding foot (3) through the cylindrical rubber ring (4) by a bolt (9).

2. The flexible cable vibration reduction device for ships according to claim 1, characterized in that: Binding holes (7) for binding cables are provided on both sides of the upper plate (1).

3. The flexible cable vibration reduction device for ships according to claim 2, characterized in that: The shock absorbing mechanism (2) comprises two sets, which are respectively arranged at the two ends of the bottom of the upper plate (1).

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