Flexible cable damping device for submarine and flexible cable damping support

Abstract

The utility model belongs to cable laying technical field, concretely relates to a submarine is with flexible cable damping device and flexible cable damping support, and cable damping device includes I -beam axle (1), slip knot screw (2), connecting shaft (5), elastic rubber subassembly (3) and outer frame (4), I -beam axle (1) is placed with elastic rubber subassembly (3) in outer frame (4), elastic rubber subassembly (3) is located between I -beam axle (1) outer wall and outer frame (4) inner wall, the screw rod (201) of slip knot screw (2) is fixedly connected with I -beam axle (1) through the thread, connecting shaft (5) and slip knot screw (2) slip knot cap (202) movable axle joint. Cable damping support includes cable bracket (9), fixed plate (10) and submarine is with flexible cable damping device. The utility model is convenient to maintain, and the structure is stable, and damping device parameter is adjustable, and the ideal shock absorption and noise reduction effect has overload protection function.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cable laying technical field, concretely relates to a submarine flexible cable damping device and flexible cable damping support. BACKGROUND

[0002] The submarine uses the power cable as the important component of the power transmission and distribution system, these cables are used for transmitting the power from the generator room to each ship system, equipment and device to meet the power supply demand of various electrical equipment on the ship, the specification, cross-sectional area and material selection of the ship cable will also be different due to the specific ship type, power demand and electrical system design. The submarine cable is generally composed of multi-core cable, and each core wire is used for transmitting different power or signal. These cables are usually composed of copper conductor, insulating layer, sheath and outer sheath to meet the requirements of the submarine electrical system. However, in the prior art, the existing submarine cable is easy to be subjected to great impact force and shaking during the ship sailing, and long-time shaking is easy to cause the submarine cable and the electrical equipment interface to fall off or loosen, causing poor contact and inducing safety accidents.

[0003] Chinese patent CN1945083A discloses a ship and ocean engineering overall convex stretching type cable bridge, including a supporting plate and a guide plate, characterized in that the supporting plate and the guide plate are integrated into a ladder type structure, each section of the concave-convex surface of the supporting plate after the overall stamping forming process is provided with a reinforcing rib, the upper corner of the guide plate at both ends of the cable bridge is "R" type, the connection between the guide plate and the supporting plate is also "R" type and forms a reinforcing rib, and the side wall of the guide plate is also provided with continuous and regular connecting holes. Compared with the prior art, the overall stamping forming process is adopted, so that the guide plate and the supporting plate of the bridge become integrated without welding. The above cable bridge does not consider the internal damping and noise reduction of the ship. At present, there is no relevant information reported on the submarine cable damping, but for other cable damping forms, a fixed ring is generally used to surround the cable, and a damping device is arranged below the fixed ring. The above technical scheme has a complex structure, and it is difficult to meet the damping requirements of the cable in two directions and multiple cables at the same time, and the adjustment of the damping device parameters is not convenient. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the insufficient of prior art and provides a submarine flexible cable damping device and flexible cable damping support which has simple structure, convenient maintenance, stable structure, adjustable damping device parameters, ideal damping and noise reduction effect and overload protection function.

[0005] To solve the above technical problems, the utility model is realized as follows:

[0006] The utility model provides a flexible cable damping device for submarine, including I -beam axle, slip screw, connecting axle, elastic rubber assembly and outer frame, I -beam axle and elastic rubber assembly are placed in the outer frame, and the elastic rubber assembly is arranged between the outer wall of I -beam axle and the inner wall of outer frame, the screw rod of slip screw is fixedly connected with I -beam axle through thread, and connecting axle is movably connected with the slip cap of slip screw.

[0007] Further, the outer frame comprises a groove-shaped housing and a cover plate fixedly connected with the groove-shaped housing.

[0008] Further, the connecting axle is movably connected with the slip cap through a bearing.

[0009] Further, the utility model also has a connecting assembly, wherein the connecting assembly comprises a screw and a nut, the screw is fixedly connected with one end of the connecting axle, and the nut is fixedly connected with the other end of the connecting axle.

[0010] A flexible cable damping support comprises a cable bracket, a fixed plate and a flexible cable damping device for submarine, wherein the fixed plate is vertically arranged with the cable bracket, the base of the outer frame of the flexible cable damping device for submarine is fixedly connected with the fixed plate, and one end of the connecting axle of the flexible cable damping device for submarine is fixedly connected with the side wall of the cable bracket.

[0011] The utility model provides a flexible cable damping device for submarine, including I -beam axle, slip screw, connecting axle, elastic rubber assembly and outer frame, I -beam axle and elastic rubber assembly are placed in the outer frame, and the elastic rubber assembly is arranged between the outer wall of I -beam axle and the inner wall of outer frame, the screw rod of slip screw is fixedly connected with I -beam axle through thread, and connecting axle is movably connected with the slip cap of slip screw.

[0012] Further, the fixed plate comprises four fixed plates, and the flexible cable damping device for submarine comprises four flexible cable damping devices.

[0013] The utility model has the advantages of simple structure, convenient maintenance, stable structure, adjustable damping device parameters, ideal damping and noise reduction effect, and overload protection function.

[0014] Compared with the prior art, the utility model has the following characteristics:

[0015] a. Different lengths of the slip screw of the cable damping device and different installation positions on the cable bracket can meet the damping requirements of cables of different masses, and the configuration can be optimized by means of the optimization function of the finite element, which is convenient to realize.

[0016] b. The cable damping device realizes the damping requirements in three directions of the cable, i.e., the transverse direction, the axial direction and the longitudinal direction.

[0017] c. The cable damping device can meet the technical requirements of damping multiple cables simultaneously.

[0018] d. The cable damping device occupies less space, meeting the extremely narrow installation environment of a submarine.

[0019] e. The cable damping device has an overload protection function. When the cable bears a large inertial force, it prevents further displacement and prevents the rubber from being damaged by excessive compression. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model will be further described below in combination with the drawings and specific embodiments. The protection scope of the utility model is not limited to the following content.

[0021] Fig. 1 Figure 1 is a partial overall structure diagram of the cable damping device of the utility model;

[0022] Fig. 2 Figure 2 is a partial overall assembly diagram of the cable damping device of the utility model;

[0023] Fig. 3 Figure 3 is a partial overall structure diagram of the cable damping support of the utility model;

[0024] Fig. 4 Figure 4 is a test force loading deformation curve of the utility model;

[0025] Fig. 5 Figure 5 is an inherent frequency test curve of the utility model;

[0026] Fig. 6 Figure 6 is a use state diagram of the utility model.

[0027] In the figure: 1, I-shaped shaft; 2, slip knot screw; 201, screw rod; 202, slip knot cap; 3, elastic rubber assembly; 4, outer frame; 401, outer shell; 402, cover plate; 5, connecting shaft; 6, bearing; 7, screw; 8, nut; 9, cable bracket; 10, fixed plate; 11, snap ring. DETAILED DESCRIPTION

[0028] The following will be described in combination with the drawings and specific embodiments of the utility model. Figs. 1-6The principles and features of the utility model are described, and the examples are used only to explain the utility model and are not used to limit the scope of the utility model. The utility model is described in more detail by way of example with reference to the drawings in the following paragraphs. The advantages and features of the utility model will be clearer according to the following description and claims. It should be noted that the drawings are in a very simplified form and all use non-precise proportions, only to facilitate, clear, and assist in the purpose of explaining the utility model embodiments. It should be noted that when a component is referred to as "fixed to" another component, it can be directly on another component or there can be a middle component. When a component is considered "connected" to another component, it can be directly connected to another component or there can be a middle component. When a component is considered "provided on" another component, it can be directly provided on another component or there can be a middle component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as understood by those skilled in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] The submarine is very strict in the requirement index of vibration and noise in order to avoid the detection of sonar. It is found that the vibration of the submarine cable cannot be ignored at present, and the vibration is transmitted to the bulkhead, which will affect the sound silence of the submarine. Based on this, the utility model designs a submarine cable damping device. Figs. 1-6 As shown in the figure, the flexible cable damping device for submarine includes an I-shaped shaft 1, a slip knot screw 2, a connecting shaft 5, an elastic rubber assembly 3 and an outer frame 4. The I-shaped shaft 1 and the elastic rubber assembly 3 are arranged in the outer frame 4, and the elastic rubber assembly 3 is arranged between the outer wall of the I-shaped shaft 1 and the inner wall of the outer frame 4. The screw rod 201 of the slip knot screw 2 is fixedly connected with the I-shaped shaft 1 through threads. The connecting shaft 5 is movably connected with the slip knot cap head 202 of the slip knot screw 2 through a bearing 6.

[0030] The outer frame 4 includes a groove-shaped housing 401 and a cover plate 402 fixedly connected with the groove-shaped housing 401. The connecting shaft 5 is movably connected with the slip knot cap head 202 through the bearing 6. The utility model also has a connecting assembly. The connecting assembly includes a screw 7 and a nut 8. One end of the screw 7 is fixedly connected with the connecting shaft 5. The other end of the connecting shaft 5 is fixedly connected with the nut 8.

[0031] As the cable damping device application scene, the flexible cable damping support, including cable bracket 9, fixed plate 10 and submarine flexible cable damping device;The fixed plate 10 is vertically arranged with cable bracket 9;The submarine flexible cable damping device in the outer frame 4 base and fixed plate 10 fixed interface;The submarine flexible cable damping device in the connecting shaft 5 one end and cable bracket 9 side wall fixed interface;Submarine flexible cable damping device, including I-beam 1, slip knot screw 2, connecting shaft 5, elastic rubber assembly 3 and outer frame 4;The I-beam 1 with elastic rubber assembly 3 is placed in the outer frame 4, the elastic rubber assembly 3 is arranged between the outer wall of I-beam 1 and the inner wall of outer frame 4;The screw rod 201 of slip knot screw 2 and I-beam 1 are fixedly connected through thread;The connecting shaft 5 and the slip knot cap head 202 of slip knot screw 2 are movably connected.The fixed plate 10 includes 4;The submarine flexible cable damping device is 4.

[0032] Referring to Fig. 3 As shown in the specific design, the cable is arranged on the cable bracket 9 in the axial direction to achieve the purpose of damping. The damping unit can better meet the requirements of damping stiffness and damping, and can meet the damping requirements in three directions. The elastic rubber assembly 3 has one piece on each of the upper and lower sides, which is pressed against the outer frame 4 to achieve the purpose of damping. The I-beam 1 adopts a I-shaped metal block. The upper and lower sides are provided with elastic rubber assembly 3 assembly grooves. The I-beam 1 and the screw rod 201 in the slip knot screw 2 are connected through thread, and the length of the screw rod 201 extending out of the I-beam 1 is adjusted to realize the purpose of adjusting the static stiffness of the damping device, so as to meet the damping requirements of different cables. The I-beam 1, the slip knot screw 2 and the elastic rubber assembly 3 are installed in the outer frame 4, the shell 401 in the outer frame 4 and the cover plate 402 are fixed through four screws, forming a complete damping unit. The slip knot cap head 202 at the top of the slip knot screw 2 is designed as a through hole, which is combined with the nut 8, the bearing 6 and the screw 7, and then installed on the cable bracket 9. The one end of the connecting shaft 5 is fixed on the cable bracket 9 through the screw 7, and one cable bracket 9 connects four damping units. The bottom of the outer frame 4 is connected with the fixed plate 10 through the bolt and nut, and the fixed plate 10 can adopt a right-angle bent plate. The fixed plate 10 is installed on the ship body, which is convenient to install and stable as a whole. The I-beam 1 has protrusions on both sides. When the load exceeds the rated load, the protrusions replace the rubber to contact the outer frame 4, thereby playing the role of overload protection.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A flexible cable damping device for a submarine, characterized in that I-shaped shaft (1), slip screw (2), connecting shaft (5), elastic rubber assembly (3) and outer frame (4); The I-shaped shaft (1) and the elastic rubber assembly (3) are placed in the outer frame (4), and the elastic rubber assembly (3) is arranged between the outer wall of the I-shaped shaft (1) and the inner wall of the outer frame (4); The screw rod (201) of the slip screw (2) is fixedly connected with the I-shaped shaft (1) through threads; The connecting shaft (5) is movably connected with the slip cap (202) of the slip screw (2).

2. The flexible submarine cable damping device of claim 1, wherein: The outer frame (4) comprises a groove-shaped shell (401) and a cover plate (402) fixedly connected with the groove-shaped shell (401).

3. The flexible submarine cable damping device of claim 2, wherein: The connecting shaft (5) is movably connected with the slip cap (202) through the bearing (6).

4. The flexible submarine cable damping device of claim 3, wherein: Further provided is a connecting assembly; The connecting assembly comprises a screw (7) and a nut (8); One end of the screw (7) is fixedly connected with the connecting shaft (5); The other end of the connecting shaft (5) is fixedly connected with the nut (8).

5. A flexible cable damping support, characterized by It comprises a cable bracket (9), a fixed plate (10) and a submarine flexible cable damping device; The fixed plate (10) is vertically arranged with the cable bracket (9); The base of the outer frame (4) in the submarine flexible cable damping device is fixedly connected with the fixed plate (10); One end of the connecting shaft (5) in the submarine flexible cable damping device is fixedly connected with the side wall of the cable bracket (9); The submarine flexible cable damping device comprises an I-shaped shaft (1), a slip screw (2), a connecting shaft (5), an elastic rubber assembly (3) and an outer frame (4); The I-shaped shaft (1) and the elastic rubber assembly (3) are placed in the outer frame (4), and the elastic rubber assembly (3) is arranged between the outer wall of the I-shaped shaft (1) and the inner wall of the outer frame (4); The screw rod (201) of the slip screw (2) is fixedly connected with the I-shaped shaft (1) through threads; The connecting shaft (5) is movably connected with the slip cap (202) of the slip screw (2).

6. The flexible cable damping support of claim 5, wherein The fixed plate (10) comprises four; The submarine flexible cable damping device is four.

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