A bend-resistant marine cable and a tensionable retraction frame therefor

Abstract

The present application relates to the technical field of ship cable, in particular to a kind of bending-resistant ship cable and its tensionable contraction frame, including mandrel, the outside of mandrel is provided with outer sheath, contraction frame is made of left and right two support frames, the bottom of two support frames is fixedly installed with base, two bases are fixedly installed with front and rear two bottom plates, the side surface center position of one support frame is fixedly installed with servo motor, the output shaft end of servo motor is fixedly installed with ring around shaft, the front end plate body between two support frames is fixedly installed with rotating shaft, top plate is provided with tensioning assembly, tensioning assembly includes first cylinder fixedly installed on top plate, the telescopic shaft end of first cylinder is provided with U-shaped frame, U-shaped frame is rotatably connected with guide roller between left and right two side plate bodies, one support frame is provided with reciprocating assembly.The present application has bending-resistant characteristics, and can contract and wind cable simultaneously.

Description

Technical Field

[0001] The present invention relates to the technical field of ship cables, in particular to a bending-resistant ship cable and a tensioning and shrinking frame thereof. Background Art

[0002] In the field of shipbuilding and operation, cables are an important part of power transmission, signal transmission and control systems. The stability and reliability of their performance are directly related to the safe operation and overall performance of the ship. There are many types of ship cables on the market. Most ship cables have a cable core at the center and are protected by an insulating sheath on the outside.

[0003] However, traditional marine cables face numerous challenges during use, especially in complex and volatile marine environments. During installation and use, marine cables often undergo multiple bends, especially in confined spaces or complex wiring environments. Due to their thick outer insulation and poor bending properties, traditional cables are prone to performance degradation, insulation damage, and even breakage after repeated bending. This not only affects the normal use of the cable but can also have a serious impact on the ship's power system and signal transmission. In light of this, we propose a bend-resistant marine cable and its tensioning and retractable frame. Summary of the Invention

[0004] The object of the present invention is to provide a bending-resistant ship cable and a tensioning and shrinking frame thereof, so as to solve the defects mentioned in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] One of the objects of the present invention is to provide a bending-resistant ship cable, comprising a core shaft, wherein an outer sheath is provided on the outside of the core shaft, wherein the outer sheath comprises an outer sheath base layer provided on the outer surface of the core shaft, an outer sheath reinforcement layer provided on the outer surface of the outer sheath base layer, and the outer sheath reinforcement layer is composed of a fiber oriented membrane and a first formed membrane provided on the inner surface of the fiber oriented membrane, wherein the first formed membrane is fixedly mounted on the outer surface of the outer sheath base layer, and a second formed membrane is provided on the outer surface of the fiber oriented membrane.

[0007] The second object of the present invention is to provide a tensionable retractable frame for bending-resistant ship cables, which is used to reel in the above-mentioned bending-resistant ship cables, including a retractable frame, which is composed of two symmetrical support frames on the left and right, and a base is fixedly installed at the bottom of the two support frames, and two front and rear symmetrical bottom plates are fixedly installed between the two bases, a servo motor is fixedly installed at the center position of the side of one of the support frames, and a surrounding shaft is fixedly installed at the end of the output shaft of the servo motor, and the surrounding shaft is rotatably connected to the support frame.

[0008] As a preferred technical solution, an arc-shaped cover is fixedly installed between the rear end rods of the two support frames, the outer diameter of the arc-shaped cover is equal to the outer diameter of the support frame, and the cross-section of the arc-shaped cover is arc-shaped.

[0009] As a preferred technical solution, two mutually symmetrical left and right support rods are fixedly installed between the arc-shaped cover and the bottom plate below, and the support rods are arranged vertically.

[0010] As a preferred technical solution, a rotating shaft is fixedly installed between the front end plates of the two support frames, and a top plate is also fixedly installed between the front end plates of the two support frames, and the top plate is located above the rotating shaft.

[0011] As an optimal technical solution, a tensioning assembly is provided on the top plate, and the tensioning assembly includes a first cylinder fixedly mounted on the top plate, a U-shaped frame is provided at the end of the telescopic shaft of the first cylinder, and a guide roller is rotatably connected between the left and right side plates of the U-shaped frame, and the guide roller is located above the rotating shaft.

[0012] As a preferred technical solution, a fixing plate is fixedly mounted on the end of the telescopic shaft of the first cylinder, and the U-shaped frame is fixedly mounted on the bottom surface of the fixing plate.

[0013] As an optimal technical solution, two mutually symmetrical guide pillars are fixedly installed on the top surface of the U-shaped frame, and two mutually symmetrical guide sleeves are fixedly installed on the bottom surface of the top plate. The guide sleeves are sleeved on the guide pillars and slidably connected to the guide pillars.

[0014] As a preferred technical solution, a reciprocating assembly is provided on one of the support frames, and the reciprocating assembly includes a second cylinder fixedly mounted on the side of the support frame, and two front and rear symmetrical guide rings are provided on the telescopic shaft of the second cylinder, and a connecting rod is fixedly mounted between the bottom ring bodies of the two guide rings, and the guide ring is sleeved on the rotating shaft and is slidably connected to the rotating shaft.

[0015] As an optimal technical solution, a steel plate is fixedly mounted on the end of the telescopic shaft of the second cylinder, and a vertical plate is fixedly mounted on the bottom surface of the guide ring close to the steel plate, and the vertical plate is fixedly mounted on the steel plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention provides an outer layer, and utilizes an outer base layer and an outer reinforcement layer for protection. The outer reinforcement layer is made of a fiber oriented film, a first formed film and a second formed film. The fiber oriented film has the advantage of excellent bending performance and can provide bending-resistant protection.

[0018] 2. The present invention provides a shrinking frame that cooperates with the servo motor to drive the surrounding shaft to rotate, so as to perform the cable shrinking operation. In addition, the first cylinder drives the guide roller to appropriately press the cable on the rotating shaft, so as to achieve appropriate tensioning operation on the cable and ensure that the cable shrinks more stably and smoothly.

[0019] 3. The reciprocating assembly provided in the present invention can enable the cable to move left and right along the winding axis and be wound more evenly under the guiding effect of the guide ring when the cable is contracted. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present invention;

[0021] Figure 2 This is a cross-sectional view of the outer reinforcement layer in Example 1 of the present invention;

[0022] Figure 3 This is a schematic diagram of the overall structure of Example 2 of the present invention;

[0023] Figure 4 This is a schematic diagram of the explosion structure of Example 2 of the present invention;

[0024] Figure 5 This is a partial structural diagram of Example 2 of the present invention;

[0025] Figure 6 Schematic diagram of the structure of the tensioning assembly in Example 2 of the present invention;

[0026] The meaning of each number in the figure is:

[0027] 1. Mandrel;

[0028] 2. Outer layer; 20. Outer base layer; 21. Outer reinforcement layer; 211. Fiber oriented membrane; 212. First formed membrane; 213. Second formed membrane;

[0029] 3. Retractable frame; 30. Support frame; 31. Base; 32. Arc cover; 321. Support rod; 33. Bottom plate; 34. Rotating shaft; 35. Top plate; 36. Servo motor; 361. Surrounding shaft;

[0030] 4. Tensioning assembly; 40. First cylinder; 401. Fixing plate; 41. U-shaped frame; 42. Guide roller; 43. Guide post; 44. Guide sleeve;

[0031] 5. Reciprocating assembly; 50. Second cylinder; 51. Steel plate; 52. Guide ring; 53. Connecting rod; 54. Vertical plate. DETAILED DESCRIPTION

[0032] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0034] Example 1

[0035] See also Figure 1-Figure 2 As shown, this embodiment provides a bending-resistant ship cable, including a core shaft 1, an outer layer 2 is provided on the outside of the core shaft 1, the outer layer 2 includes an outer base layer 20 provided on the outer surface of the core shaft 1, and an outer reinforcement layer 21 is provided on the outer surface of the outer base layer 20. The components and mass percentages of the outer base layer 20 are as follows: elastomer SEBS powder 25-45%, softening plasticizer 10-20%, polypropylene 10-25%, flame retardant 8-20%, compatibilizer 2-8%, anti-copper damage additive 0.1-2%, absorber 0.3-3.5%, antioxidant 0.5-2% , light stabilizer 0.5~2%, wear resistance agent 0.6~3%, color powder 0.7~2.5%; the outer reinforcement layer 21 is composed of a fiber oriented membrane 211 and a first formed membrane 212 arranged on the inner surface of the fiber oriented membrane 211, the first formed membrane 212 is fixedly mounted on the outer surface of the outer base layer 20, and a second formed membrane 213 is arranged on the outer surface of the fiber oriented membrane 211. The first formed membrane 212 and the second formed membrane 213 can be made of PE film or PP film, and the fiber oriented membrane 211 can be made of ultra-high molecular weight polyethylene material, so that it has better bending resistance.

[0036] Example 2

[0037] See also Figure 3-Figure 6As shown, this embodiment also provides a tensionable retractable frame for a bend-resistant ship cable, which is used to reel in the above-mentioned bend-resistant ship cable, including a retractable frame 3, which is composed of two symmetrical support frames 30 on the left and right, and a base 31 is fixedly installed at the bottom of the two support frames 30, and two front and rear symmetrical bottom plates 33 are fixedly installed between the two bases 31, and the base 31 and the bottom plate 33 are used for supporting operations; a servo motor 36 is fixedly installed at the center position of the side of one of the support frames 30, and a surrounding shaft 361 is fixedly installed at the end of the output shaft of the servo motor 36, and the surrounding shaft 361 is rotatably connected to the support frame 30, and one end of the outer layer 2 is fixedly installed on the surrounding shaft 361, so that the servo motor 36 works and drives the surrounding shaft 361 to rotate, thereby realizing the telescopic and retracting operations of the outer layer 2 and the core shaft 1.

[0038] In this embodiment, an arc-shaped cover 32 is fixedly installed between the rear end rods of the two support frames 30. The outer diameter of the arc-shaped cover 32 is equal to the outer diameter of the support frame 30, and the cross-section of the arc-shaped cover 32 is arc-shaped; two symmetrical support rods 321 are fixedly installed on the left and right between the arc-shaped cover 32 and the bottom plate 33 below. The support rods 321 are arranged vertically, making the structure between the two support frames 30 more firm and stable.

[0039] Specifically, a rotating shaft 34 is fixedly installed between the front end plates of the two support frames 30, and a top plate 35 is also fixedly installed between the front end plates of the two support frames 30. The top plate 35 is located above the rotating shaft 34, so that the rotating shaft 34 can lift the cable.

[0040] Furthermore, a tensioning assembly 4 is provided on the top plate 35, and the tensioning assembly 4 includes a first cylinder 40 fixedly mounted on the top plate 35, and a U-shaped frame 41 is provided at the end of the telescopic shaft of the first cylinder 40, and a guide roller 42 is rotatably connected between the left and right side plates of the U-shaped frame 41, and the guide roller 42 is located above the rotating shaft 34, so that the guide roller 42 is used to properly press the cable onto the rotating shaft 34, which can achieve the effect of properly tensioning the cable, so that the cable can remain in a tensioned state during the subsequent winding process and will not loosen.

[0041] In addition, a fixing plate 401 is fixedly installed at the end of the telescopic shaft of the first cylinder 40, and the U-shaped frame 41 is fixedly installed on the bottom surface of the fixing plate 401 by multiple fastening screws, which is convenient for fixed installation operations; two mutually symmetrical guide columns 43 are fixedly installed on the top surface of the U-shaped frame 41, and two mutually symmetrical guide sleeves 44 are fixedly installed on the bottom surface of the top plate 35. The guide sleeves 44 are sleeved on the guide columns 43 and are slidably connected with the guide columns 43, thereby guiding the movement of the U-shaped frame 41.

[0042] It is worth noting that a reciprocating assembly 5 is provided on one of the support frames 30. The reciprocating assembly 5 includes a second cylinder 50 fixedly mounted on the side of the support frame 30. Two mutually symmetrical guide rings 52 are provided on the telescopic shaft of the second cylinder 50. A connecting rod 53 is fixedly mounted between the bottom ring bodies of the two guide rings 52. The guide ring 52 is sleeved on the rotating shaft 34 and is slidably connected to the rotating shaft 34. The cable passes between the two guide rings 52 to guide the cable.

[0043] It is worth noting that a steel plate 51 is fixedly installed at the end of the telescopic shaft of the second cylinder 50, and a vertical plate 54 is fixedly installed on the bottom surface of the guide ring 52 close to the side of the steel plate 51. The vertical plate 54 is fixed to the steel plate 51 by multiple fastening screws to facilitate fixed installation operations.

[0044] When the bending-resistant ship cable and its tensioning and shrinking frame of the present invention are used, one end of the core shaft 1 and the outer layer 2 is fixedly installed on the surrounding shaft 361, and then the first cylinder 40 is started and made to work. When the first cylinder 40 works, the telescopic shaft thereon extends and drives the U-shaped frame 41 and the guide roller 42 to move downward. The guide roller 42 moves downward, which can properly press the core shaft 1 and the outer layer 2 on the rotating shaft 34, so that the core shaft 1 and the outer layer 2 will not be too loose. In addition, since the guide roller 42 and the rotating shaft 34 can both rotate, the friction can be reduced. As the servo After the servo motor 36 is connected to the external power supply and is put into operation, the servo motor 36 starts to work, and the output shaft thereon rotates to drive the surrounding shaft 361 to rotate. After the surrounding shaft 361 rotates, the contraction and winding operations of the core shaft 1 and the outer layer 2 are realized. In addition, during the contraction process, the second cylinder 50 is started and made to work. When the second cylinder 50 works and the telescopic shaft thereon is extended or shortened, it can drive the guide ring 52 to move, and further drive the cable passing between the two guide rings 52 to move left and right along the rotating shaft 34, so that the cable is more evenly wrapped around the surrounding shaft 361.

[0045] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A tensionable retractable frame for a bending-resistant ship cable, used for winding up the bending-resistant ship cable, the bending-resistant ship cable comprising a core shaft (1), characterized in that: An outer coating (2) is provided on the outside of the core shaft (1), the outer coating (2) comprising an outer coating base layer (20) provided on the outer surface of the core shaft (1), an outer coating reinforcement layer (21) provided on the outer surface of the outer coating base layer (20), the outer coating reinforcement layer (21) comprising a fiber oriented membrane (211) and a first formed membrane (212) provided on the inner surface of the fiber oriented membrane (211), the first formed membrane (212) being fixedly mounted on the outer surface of the outer coating base layer (20), and a second formed membrane (213) provided on the outer surface of the fiber oriented membrane (211); The invention comprises a retractable frame (3), wherein the retractable frame (3) is composed of two mutually symmetrical support frames (30) on the left and right, a base (31) is fixedly installed at the bottom of each of the two support frames (30), and two mutually symmetrical bottom plates (33) are fixedly installed between the two bases (31). A servo motor (36) is fixedly installed at the center position of the side of one of the support frames (30), and a surrounding shaft (361) is fixedly installed at the end of the output shaft of the servo motor (36), and the surrounding shaft (361) is rotatably connected to the support frame (30); An arc-shaped cover (32) is fixedly installed between the rear end rods of the two support frames (30), the outer diameter of the arc-shaped cover (32) is equal to the outer diameter of the support frame (30), and the cross section of the arc-shaped cover (32) is arc-shaped; Two mutually symmetrical support rods (321) are fixedly installed between the arc-shaped cover (32) and the bottom plate (33) below, and the support rods (321) are arranged vertically; A rotating shaft (34) is fixedly installed between the front end plates of the two support frames (30), and a top plate (35) is also fixedly installed between the front end plates of the two support frames (30), and the top plate (35) is located above the rotating shaft (34); A tensioning assembly (4) is provided on the top plate (35), and the tensioning assembly (4) includes a first cylinder (40) fixedly mounted on the top plate (35), a U-shaped frame (41) is provided at the end of the telescopic shaft of the first cylinder (40), and a guide roller (42) is rotatably connected between the left and right side plates of the U-shaped frame (41), and the guide roller (42) is located above the rotating shaft (34).

2. The tensionable and retractable frame for bending-resistant ship cables according to claim 1, characterized in that: A fixing plate (401) is fixedly mounted on the end of the telescopic shaft of the first cylinder (40), and the U-shaped frame (41) is fixedly mounted on the bottom surface of the fixing plate (401).

3. The tensionable and retractable frame for bending-resistant ship cables according to claim 2, characterized in that: Two mutually symmetrical guide posts (43) are fixedly mounted on the top surface of the U-shaped frame (41), and two mutually symmetrical guide sleeves (44) are fixedly mounted on the bottom surface of the top plate (35). The guide sleeves (44) are sleeved on the guide posts (43) and are slidably connected to the guide posts (43).

4. The tensionable and retractable frame for bending-resistant ship cables according to claim 3, characterized in that: A reciprocating assembly (5) is provided on one of the support frames (30), and the reciprocating assembly (5) includes a second cylinder (50) fixedly mounted on the side of the support frame (30), and two mutually symmetrical guide rings (52) are provided on the telescopic shaft of the second cylinder (50), and a connecting rod (53) is fixedly mounted between the bottom ring bodies of the two guide rings (52), and the guide ring (52) is sleeved on the rotating shaft (34) and is slidably connected to the rotating shaft (34).

5. The tensionable and retractable frame for bending-resistant ship cables according to claim 4, characterized in that: A steel plate (51) is fixedly mounted on the end of the telescopic shaft of the second cylinder (50), and a vertical plate (54) is fixedly mounted on the bottom surface of the guide ring (52) on the side close to the steel plate (51), and the vertical plate (54) is fixedly mounted on the steel plate (51).

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