Bending-resistant ship cable and tensible contraction frame thereof

Abstract

The invention relates to the technical field of ship cables, in particular to a bending-resistant ship cable and a tensible contraction frame thereof.The bending-resistant ship cable comprises a mandrel, an outer coating layer is arranged outside the mandrel, the contraction frame is composed of a left supporting frame and a right supporting frame, bases are fixedly installed at the bottoms of the two supporting frames, and a front bottom plate and a rear bottom plate are fixedly installed between the two bases; wherein a servo motor is fixedly installed at the center position of the side face of one supporting frame, a surrounding shaft is fixedly installed at the tail end of an output shaft of the servo motor, a rotating shaft is fixedly installed between front end plate bodies of the two supporting frames, and a tensioning assembly is arranged on the top plate and comprises a first air cylinder fixedly installed on the top plate; a U-shaped frame is arranged at the tail end of a telescopic shaft of the first air cylinder, a guide roller is rotationally connected between plate bodies on the left side and the right side of the U-shaped frame, and a reciprocating assembly is arranged on one supporting frame. The cable winding device has the bending-resistant characteristic, and meanwhile, the cable can be shrunk and wound.

Description

Technical Field

[0001] The 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 important components 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 of them have a cable core at the center, which is protected by an insulating sheath on the outside.

[0003] However, traditional ship cables face many challenges during use, especially in complex and changeable marine environments. Ship cables often need to be bent many times during laying and use, especially in narrow spaces or complex wiring environments. Traditional cables have thick external insulation layers and poor bending performance. After repeated bending, they are prone to performance degradation, insulation layer damage, or even breakage. This not only affects the normal use of the cable, but may also have a serious impact on the ship's power system and signal transmission. In view of this, we propose a bend-resistant ship cable and a tensioning and shrinking frame. Summary of the invention

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

[0005] To achieve the above object, the present invention provides the following technical solutions: One of the objects of the present invention is to provide a bending-resistant ship cable, comprising a core shaft, wherein an outer coating is arranged on the outside of the core shaft, wherein the outer coating comprises an outer coating base layer arranged on the outer surface of the core shaft, an outer coating reinforcement layer is arranged on the outer surface of the outer coating base layer, and the outer coating reinforcement layer is composed of a fiber oriented membrane and a first formed membrane arranged on the inner surface of the fiber oriented membrane, the first formed membrane is fixedly mounted on the outer surface of the outer coating base layer, and a second formed membrane is arranged on the outer surface of the fiber oriented membrane.

[0006] The second object of the present invention is to provide a tensionable retractable frame for a bending-resistant ship cable, which is used for winding up the above-mentioned bending-resistant ship cable, including a retractable frame, which is composed of two symmetrical left and right support frames, and the bottoms of the two support frames are fixedly installed with a base, 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 wraparound shaft is fixedly installed at the end of the output shaft of the servo motor, and the wraparound shaft is rotatably connected to the support frame.

[0007] 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.

[0008] As a preferred technical solution, two left and right symmetrical support rods are fixedly installed between the arc-shaped cover and the bottom plate below, and the support rods are arranged vertically.

[0009] 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.

[0010] As a preferred 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.

[0011] 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.

[0012] As an optimal technical solution, two symmetrical guide pillars are fixedly installed on the top surface of the U-shaped frame, and two 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 with the guide pillars.

[0013] 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.

[0014] As an optimal technical solution, a steel plate is fixedly installed at the end of the telescopic shaft of the second cylinder, a vertical plate is fixedly installed on the bottom surface of the guide ring close to the steel plate, and the vertical plate is fixedly installed on the steel plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides an outer layer, an outer base layer and an outer reinforcement layer for protection, and 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 anti-bending protection.

[0016] 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 onto the rotating shaft, so as to achieve appropriate tensioning operation on the cable and ensure that the cable shrinks more stably and smoothly.

[0017] 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

[0018] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention; Figure 2 is a cross-sectional view of the outer reinforcement layer in Example 1 of the present invention; Figure 3 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention; Figure 4 This is a schematic diagram of the explosion structure of Example 2 of the present invention; Figure 5 This is a partial structural diagram of Embodiment 2 of the present invention; Figure 6 It is a structural schematic diagram of the tensioning assembly in Example 2 of the present invention; The meaning of each number in the figure is: 1. Mandrel; 2. outer layer; 20. outer base layer; 21. outer reinforcement layer; 211. fiber oriented film; 212. first formed film; 213. second formed film; 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; 4. tensioning assembly; 40. first cylinder; 401. fixing plate; 41. U-shaped frame; 42. guide roller; 43. guide column; 44. guide sleeve; 5. Reciprocating assembly; 50. Second cylinder; 51. Steel plate; 52. Guide ring; 53. Connecting rod; 54. Vertical plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it is to 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”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 a limitation on the present invention.

[0021] Example 1 See also Figure 1-Figure 2 As shown, this embodiment provides a bending-resistant ship cable, including a core shaft 1, an outer coating 2 is arranged on the outside of the core shaft 1, the outer coating 2 includes an outer coating base layer 20 arranged on the outer surface of the core shaft 1, and an outer coating reinforcement layer 21 is arranged on the outer surface of the outer coating base layer 20. The components and mass percentages of the outer coating 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 film 211 and a first formed film 212 arranged on the inner surface of the fiber oriented film 211, the first formed film 212 is fixedly mounted on the outer surface of the outer base layer 20, and a second formed film 213 is arranged on the outer surface of the fiber oriented film 211. The first formed film 212 and the second formed film 213 can be made of PE film or PP film, and the fiber oriented film 211 can be made of ultra-high molecular weight polyethylene material, so that it has better bending resistance.

[0022] Example 2 See also Figure 3-Figure 6 As shown, the present embodiment also provides a tensionable retractable frame for a bending-resistant ship cable, which is used for rewinding the above-mentioned bending-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 wrapping shaft 361 is fixedly installed at the end of the output shaft of the servo motor 36, and the wrapping shaft 361 is rotatably connected to the support frame 30, and one end of the outer sheath 2 is fixedly installed on the wrapping shaft 361, so that the servo motor 36 works and drives the wrapping shaft 361 to rotate, so that the telescopic and retracting operations of the outer sheath 2 and the core shaft 1 can be realized.

[0023] In this embodiment, an arc-shaped cover 32 is fixedly installed between the rod bodies at the rear ends 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 left and right symmetrical support rods 321 are fixedly installed between the arc-shaped cover 32 and the bottom plate 33 below. The support rods 321 are vertically arranged to make the structure between the two support frames 30 more firm and stable.

[0024] 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 play the effect of lifting the cable.

[0025] 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 utilized to appropriately press the cable onto the rotating shaft 34, which can achieve the effect of appropriately tensioning the cable, so that during the subsequent winding process, the cable can remain in a tensioned state and will not loosen.

[0026] 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 a plurality of fastening screws, so as to facilitate the fixing and installation operation; two left and right symmetrical guide columns 43 are fixedly installed on the top surface of the U-shaped frame 41, and two left and right symmetrical guide sleeves 44 are fixedly installed on the bottom surface of the top plate 35, and the guide sleeves 44 are sleeved on the guide columns 43 and slidably connected with the guide columns 43, so as to guide the movement of the U-shaped frame 41.

[0027] It is worth mentioning 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 front and rear symmetrical guide rings 52 are provided on the telescopic shaft of the second cylinder 50, and a connecting rod 53 is fixedly installed 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 with the rotating shaft 34, and the cable passes through between the two guide rings 52, which has the effect of guiding the cable.

[0028] 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 fixedly installed on the steel plate 51 by a plurality of fastening screws to facilitate the fixed installation operation.

[0029] When the bending-resistant ship cable and the 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 to drive the U-shaped frame 41 and the guide roller 42 to move downward. The guide roller 42 moves downward, which can appropriately 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 an external power source 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 put into operation. 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.

[0030] 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 by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A bending-resistant ship cable, comprising a core shaft (1), characterized in that: An outer coating (2) is arranged on the outside of the core shaft (1), and the outer coating (2) includes an outer coating base layer (20) arranged on the outer surface of the core shaft (1), and an outer coating reinforcement layer (21) is arranged on the outer surface of the outer coating base layer (20), and the outer coating 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), and the first formed membrane (212) is fixedly installed on the outer surface of the outer coating base layer (20), and a second formed membrane (213) is arranged on the outer surface of the fiber oriented membrane (211).

2. A tensionable shrinkage frame for a bending-resistant ship cable, used for winding up the bending-resistant ship cable according to claim 1, characterized in that: 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 mounted at the bottom of each of the two support frames (30), two mutually symmetrical bottom plates (33) are fixedly mounted between the two bases (31), a servo motor (36) is fixedly mounted at the center position of the side of one of the support frames (30), a surrounding shaft (361) is fixedly mounted 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).

3. The tensionable shrinkable frame of the bending-resistant ship cable according to claim 2, characterized in that: An arc-shaped cover (32) is fixedly mounted between the rod bodies at the rear ends 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.

4. The tensionable shrinkable frame of the bending-resistant ship cable according to claim 3, characterized in that: Two mutually symmetrical left and right 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 in a vertical shape.

5. The tensionable shrinkable frame of the bending-resistant ship cable according to claim 4, characterized in that: A rotating shaft (34) is fixedly mounted between the front end plate bodies of the two support frames (30), and a top plate (35) is also fixedly mounted between the front end plate bodies of the two support frames (30), wherein the top plate (35) is located above the rotating shaft (34).

6. The tensionable shrinkable frame of the bending-resistant ship cable according to claim 5, characterized in that: A tensioning assembly (4) is provided on the top plate (35), and the tensioning assembly (4) comprises 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).

7. The tensionable shrinkable frame of the bending-resistant ship cable according to claim 6, 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).

8. The tensionable shrinkable frame of the bending-resistant ship cable according to claim 7, characterized in that: Two mutually symmetrical left and right guide pillars (43) are fixedly mounted on the top surface of the U-shaped frame (41), and two mutually symmetrical left and right guide sleeves (44) are fixedly mounted on the bottom surface of the top plate (35). The guide sleeves (44) are sleeved on the guide pillars (43) and are slidably connected to the guide pillars (43).

9. The tensionable shrinkable frame of the bending-resistant ship cable according to claim 8, characterized in that: A reciprocating assembly (5) is arranged on one of the support frames (30), the reciprocating assembly (5) comprising a second cylinder (50) fixedly mounted on a side surface of the support frame (30), two mutually symmetrical guide rings (52) are arranged 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), and the guide ring (52) is sleeved on the rotating shaft (34) and is slidably connected to the rotating shaft (34).

10. The tensionable shrinkable frame of the bending-resistant ship cable according to claim 9, 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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