Wear-resistant cable and cable protection assembly thereof

Abstract

The invention relates to a wear-resistant cable and a cable protection assembly thereof, and belongs to the technical field of cable protection assemblies. Comprising a cable, the surface of the cable is sleeved with a buffer layer, the surface of the buffer layer is sleeved with an insulating layer, and the surface of the insulating layer is sleeved with a protective layer; the end portion of the cable is provided with a protection assembly, the protection assembly comprises a dynamic protection assembly, and the dynamic protection assembly is used for the cable to dynamically adapt to bending changes. According to the invention, the dynamic protection assembly and the stress decomposition assembly are arranged, when the cable is bent, the filling balls approach to the bending point to form rigid support, the cable is prevented from being excessively bent, meanwhile, concentrated stress can be decomposed into a plurality of radial and tangential component forces, the stress intensity is greatly attenuated, the phenomenon of fatigue wire breakage is avoided, and the service life of the cable is prolonged. And the clamping structure can be twisted and flexibly adjusted along with the movement of the cable, so that the protection assembly and the cable are always in a stable and sealed protection state, and the universality and reliability of the protection assembly are improved.

Description

Technical Field

[0001] This invention relates to the field of cable protection components, and in particular to a wear-resistant cable and its cable protection components.

[0002] Background Technology

[0003] Abrasion-resistant cables are a type of cable widely used in industrial equipment, automation systems, and mobile electrical equipment. Their main characteristics are strong mechanical abrasion resistance and good flexibility, enabling them to work stably in environments with frequent movement, bending, or friction.

[0004] Cable protection components are devices used to protect cables from external factors such as physical damage, chemical corrosion, biological damage, and electromagnetic interference. They protect cables from environmental hazards and ensure the safety, stability, and long-term reliability of power or signal transmission.

[0005] Existing cable protection components are difficult to effectively fix cables of different specifications during construction, resulting in uneven clamping force. This causes the protective sleeve to slip and detach when the cable shakes, losing its sealing and protective function and creating a risk of localized crush damage to the cable. At the same time, when the cable is subjected to axial tension or bending moment, the stress is difficult to effectively decompose and release, which can easily lead to cracking and creases in the cable sheath, as well as fatigue breakage of the internal conductor.

[0006] Therefore, this application provides an abrasion-resistant cable and its cable protection assembly to meet the requirements. Summary of the Invention

[0007] The technical problem to be solved by this invention is to provide a wear-resistant cable and its cable protection assembly, so as to solve the problem that existing cable protection assemblies are difficult to effectively fix cables of different specifications during construction, resulting in uneven clamping force, causing the protective sleeve to slip and detach when the cable shakes, losing its sealing and protective function, and causing the cable to be at risk of local crushing damage. At the same time, when the cable is subjected to axial tension or bending moment, the stress is difficult to be effectively decomposed and released, which easily leads to cracking and creases in the cable sheath, as well as fatigue breakage of the internal conductor.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0009] A wear-resistant cable and its cable protection assembly include a cable, a buffer layer sleeved on the surface of the cable, an insulation layer sleeved on the surface of the buffer layer, and a protective layer sleeved on the surface of the insulation layer; a protection assembly is provided at the end of the cable, the protection assembly including a dynamic protection assembly for dynamically adapting the cable to bending changes, the dynamic protection assembly being connected to the insulation layer; a stress decomposition assembly for decomposing the stress vector generated by torsion, the stress decomposition assembly being connected to the dynamic protection assembly; and an adaptive sealing assembly for adapting to cables of different specifications, the adaptive sealing assembly being connected to the stress decomposition assembly.

[0010] Optionally, the dynamic protection component includes a protective connector sleeved on the surface of the insulation layer, with a protective sleeve fixedly connected to the end of the protective connector, and multiple arc-shaped ridge plates fixedly connected to the surface of the protective sleeve.

[0011] Optionally, the inner wall of the protective sleeve is fixedly connected to a plurality of elastic trusses, the plurality of elastic trusses being arranged around the axis of the protective sleeve, and the interior of the plurality of elastic trusses being movably connected to a plurality of infill spheres.

[0012] Optionally, a spiral groove frame is fixedly connected to the inner wall of the plurality of elastic trusses, the inner wall of the spiral groove frame is provided with a spiral groove, a plurality of grating sensors are fixedly connected to the inner wall of the spiral groove frame, and a displacement block is also slidably connected to the inner wall of the spiral groove frame.

[0013] Optionally, the stress decomposition assembly includes an annular fixed disk movably connected to the inner wall of the spiral groove frame, an end of the annular fixed disk being movably connected to a wall ring frame, and a rotating frame being rotatably connected to the surface of the wall ring frame.

[0014] Optionally, the inner wall of the annular fixed disk is slidably connected with multiple transmission rods, a miniature pressure sensor is provided above the multiple transmission rods, and an elastic support is fixedly connected to the bottom of the multiple transmission rods.

[0015] Optionally, the surface of the elastic support is fitted with a nested inner ring, which is composed of multiple concentric but non-rigidly connected collars, and multiple arc-shaped diffraction blocks are fixedly connected to the surface of the nested inner ring.

[0016] Optionally, the adaptive sealing assembly includes a first sealing lip ring movably connected to the surface of the insulating layer, an end of the first sealing lip ring being fixedly connected to a nested ring frame, and a plurality of movable seats being fixedly connected to the surface of the nested ring frame.

[0017] Optionally, a ball joint frame is movably connected to the surface of the movable seat, and a tapered clamping liner is fixedly connected to the end of the ball joint frame. A plurality of flexible connecting strips are also fixedly connected to the surface of the nested ring frame.

[0018] Optionally, the inner wall of the conical clamping liner is fixedly connected with a plurality of alloy expansion pads, the inner wall of the end of the conical clamping liner is fixedly connected with a clamping pad block, and the ends of the plurality of conical clamping liners are fixedly connected with a second sealing lip ring.

[0019] Compared with the prior art, the present invention has at least the following beneficial effects:

[0020] In the above scheme, by setting up dynamic protection components, the synergistic effect of protective joints, protective sleeves, and arc-shaped ridge plates can effectively remove contaminants such as sand and soil during cable movement, preventing impurities from causing wear on the cable surface. Furthermore, the combination of the elastic truss and internal filling balls creates rigid support as the cable bends, preventing excessive bending or stretching in certain areas. Simultaneously, the grating sensors within the spiral groove can monitor the micro-motion status of the displacement blocks in real time, providing timely feedback on the critical states of cable bending and torsion. This effectively avoids problems such as sheath cracking and creases caused by excessive cable deformation, ensuring the structural integrity of the cable in environments with frequent movement and bending, and improving its dynamic adaptability and service life.

[0021] By setting up a stress decomposition component, and utilizing the cooperation of the wall ring frame, elastic support, and nested inner ring, the concentrated stress vector is decomposed into multiple radial and tangential components. The non-rigidly connected nested inner ring forms a specific stiffness gradient, which, together with the elastic deformation of the elastic support, achieves the gradual absorption and dispersion of stress. Then, the stress is further diffracted into small stresses in multiple directions by the arc-shaped diffraction block, which greatly attenuates the stress intensity and avoids fatigue wire breakage of the internal conductor due to stress concentration. In addition, the miniature pressure sensor monitors the force value transmitted by the transmission rod in real time, which can effectively prevent cable overload and further ensure the stable operation of the cable under complex stress scenarios.

[0022] By setting up an adaptive sealing assembly, the first and second sealing lip rings cooperate with the conical clamping liner to provide basic guidance and clamping range. The shape memory alloy expansion pad on its inner wall remains relaxed at room temperature to allow the cable to pass through, and actively contracts to a preset diameter during operation, forming a uniform interference fit with the cable's outer diameter. This avoids the problem of the protective sleeve slipping or detaching caused by uneven clamping force in traditional protective assemblies. At the same time, the cooperation between the ball joint frame and the flexible connecting strip allows the clamping structure to be flexibly adjusted with the movement and twisting of the cable. While ensuring the sealing and protection effect, it eliminates the risk of localized cable crushing and ensures that the cable is always in a stable and sealed protective state during installation and operation, thus improving the versatility and reliability of the protective assembly. Attached Figure Description

[0023] Figure 1 A first-person perspective three-dimensional structural diagram of abrasion-resistant cable and its cable protection components;

[0024] Figure 2 A schematic diagram of the three-dimensional structure of the cable and buffer layer in combination;

[0025] Figure 3 A three-dimensional structural diagram of the protective layer and dynamic protective components in combination;

[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of the dynamic protection component;

[0027] Figure 5 A schematic diagram of a three-dimensional structure combining a flexible truss and a filling sphere;

[0028] Figure 6 A schematic diagram of the three-dimensional structure of the annular fixed disk and the nested ring frame;

[0029] Figure 7 This is a schematic diagram of the three-dimensional structure of the wall ring frame and the rotating frame in conjunction.

[0030] Figure 8 This is a schematic diagram of the three-dimensional structure of the stress decomposition component;

[0031] Figure 9 A three-dimensional structural diagram of the second sealing lip ring and the elastic support;

[0032] Figure 10 This is a schematic diagram of the three-dimensional structure of the adaptive sealing assembly.

[0033] Figure label:

[0034] 1. Cable; 2. Buffer layer; 3. Insulation layer; 4. Protective layer; 5. Dynamic protection component; 51. Protective joint; 52. Protective sleeve; 53. Arc-shaped ridge plate; 54. Elastic truss; 55. Filler ball; 56. Spiral groove frame; 57. Grating sensor; 58. Displacement block; 6. Stress decomposition component; 61. Annular fixed plate; 62. Wall ring frame; 63. Rotating frame; 64. Transmission rod; 65. Elastic support; 66. Miniature pressure sensor; 67. Nested inner ring; 68. Arc-shaped diffraction block; 7. Adaptive sealing component; 71. Nested ring frame; 72. First sealing lip ring; 73. Movable seat; 74. Ball joint frame; 75. Flexible connecting strip; 76. Conical clamping liner; 77. Alloy expansion pad; 78. Clamping pad block; 79. Second sealing lip ring. Detailed Implementation

[0035] To further illustrate the technical means and effects adopted by the present invention in order to achieve the intended purpose, the following detailed description is provided in conjunction with the accompanying drawings and preferred embodiments, based on the specific implementation methods, structures, features and effects of the present invention.

[0036] like Figures 1 to 10As shown, an embodiment of the present invention provides a wear-resistant cable and its cable protection assembly, including a cable 1, a buffer layer 2 sleeved on the surface of the cable 1, an insulation layer 3 sleeved on the surface of the buffer layer 2, and a protective layer 4 sleeved on the surface of the insulation layer 3; a protection assembly is provided at the end of the cable 1, the protection assembly including a dynamic protection assembly 5, the dynamic protection assembly 5 being used for the cable to dynamically adapt to bending changes, the dynamic protection assembly 5 being connected to the insulation layer 3; a stress decomposition assembly 6, the stress decomposition assembly 6 being used for decomposing the stress vector generated by torsion, the stress decomposition assembly 6 being connected to the dynamic protection assembly 5; and an adaptive sealing assembly 7, the adaptive sealing assembly 7 being used for adapting to cables of different specifications, the adaptive sealing assembly 7 being connected to the stress decomposition assembly 6.

[0037] As an implementation method in this embodiment, such as Figures 3 to 6 As shown, the dynamic protection component 5 includes a protective connector 51 sleeved on the surface of the insulating layer 3. A protective sleeve 52 is fixedly connected to the end of the protective connector 51. Multiple arc-shaped ridge plates 53 are fixedly connected to the surface of the protective sleeve 52. Multiple elastic trusses 54 are fixedly connected to the inner wall of the protective sleeve 52. The multiple elastic trusses 54 are arranged around the axis of the protective sleeve 52. Multiple filling balls 55 are movably connected inside the multiple elastic trusses 54. A spiral groove frame 56 is fixedly connected to the inner wall of the multiple elastic trusses 54. A spiral groove is formed on the inner wall of the spiral groove frame 56. Multiple grating sensors 57 are fixedly connected to the inner wall of the spiral groove frame 56. A displacement block 58 is also slidably connected to the inner wall of the spiral groove frame 56. By utilizing the coordinated operation of the protective joint 51, protective sleeve 52, and arc-shaped ridge plate 53, contaminants such as sand and soil can be effectively removed during cable movement, preventing impurities from causing wear on the cable surface. Furthermore, with the cooperation of the elastic truss 54 and the internal filling ball 55, when the cable is bent, the filling ball 55 moves towards the bending point to form rigid support, preventing excessive bending or stretching of the cable in certain areas. At the same time, the grating sensor 57 in the spiral groove frame 56 can monitor the micro-motion state of the displacement block 58 in real time, and promptly provide feedback on the critical state of cable bending and twisting, effectively avoiding problems such as sheath cracking and creases caused by excessive deformation of the cable, and ensuring the structural integrity of the cable in environments with frequent movement and bending.

[0038] As an implementation method in this embodiment, such as Figures 6 to 8As shown, the stress decomposition assembly 6 includes an annular fixed disk 61 movably connected to the inner wall of the spiral groove frame 56. A wall ring frame 62 is movably connected to the end of the annular fixed disk 61. A rotating frame 63 is rotatably connected to the surface of the wall ring frame 62. Multiple transmission rods 64 are slidably connected to the inner wall of the annular fixed disk 61. A miniature pressure sensor 66 is disposed above each of the multiple transmission rods 64. An elastic support column 65 is fixedly connected to the bottom of each of the multiple transmission rods 64. A nested inner ring 67 is inserted into the surface of the elastic support column 65. The nested inner ring 67 consists of multiple concentric but non-rigidly connected collars. Multiple arc-shaped diffraction blocks are fixedly connected to the surface of the nested inner ring 67. 68. By utilizing the cooperation of the wall ring frame 62, the elastic support 65, and the nested inner ring 67, the concentrated stress vector is decomposed into multiple radial and tangential components. The non-rigidly connected nested inner ring 67 forms a specific stiffness gradient, which, together with the elastic deformation of the elastic support 65, achieves the gradual absorption and dispersion of stress. Then, the stress is further diffracted into small stresses in multiple directions by the arc-shaped diffraction block 68, which greatly attenuates the stress intensity and avoids fatigue wire breakage of the internal conductor due to stress concentration. In addition, the miniature pressure sensor 66 monitors the force value transmitted by the transmission rod 64 in real time, which can effectively prevent cable overload and further ensure the stable operation of the cable under complex stress scenarios.

[0039] As an implementation method in this embodiment, such as Figures 6 to 10 As shown, the adaptive sealing assembly 7 includes a first sealing lip ring 72 movably connected to the surface of the insulating layer 3. A nested ring frame 71 is fixedly connected to the end of the first sealing lip ring 72. Multiple movable seats 73 are fixedly connected to the surface of the nested ring frame 71. A ball joint frame 74 is movably connected to the surface of the movable seats 73. A conical clamping liner 76 is fixedly connected to the end of the ball joint frame 74. Multiple flexible connecting strips 75 are also fixedly connected to the surface of the nested ring frame 71. Multiple alloy expansion pads 77 are fixedly connected to the inner wall of the conical clamping liner 76. A clamping pad block 78 is fixedly connected to the inner wall of the end of the conical clamping liner 76. A second sealing lip ring 79 is fixedly connected to the end of the multiple conical clamping liner rings 76. The first sealing lip ring 72 and the second sealing lip ring 79 are used to seal the seal. The cooperation between the lip ring 79 and the conical clamping liner 76 provides basic guidance and clamping range for the conical clamping liner 76. At the same time, the shape memory alloy expansion pad 77 on the inner wall of the conical clamping liner 76 remains relaxed at room temperature to allow the cable to pass through. During operation, it actively contracts to a preset diameter, forming a uniform interference fit with the outer diameter of the cable. This avoids the problem of the protective sleeve 52 slipping or detaching due to uneven clamping force in traditional protective components. Meanwhile, the cooperation between the ball joint bracket 74 and the flexible connecting strip 75 allows the clamping structure to be flexibly adjusted with the movement and twisting of the cable. While ensuring the sealing and protection effect, it eliminates the risk of local pressure damage to the cable and ensures that the cable is always in a stable and sealed protective state during installation and operation, thereby improving the versatility and reliability of the protective component.

[0040] The working principle of the technical solution provided by this invention is as follows:

[0041] In use, the cable end is first connected to the internal self-adaptive sealing component 7 of the protective assembly. During cable handling or operation, the cable may bend or expand. The dynamic protective assembly 5 then activates, and the protective sleeve 52, fixedly connected to the protective connector 51 at the end of the protective layer 4, begins to move synchronously with the cable's movement. As the cable bends, the arc-shaped ridge plate 53 removes sand, soil, and contaminants while unfolding or bending. The elastic truss 54 on the inner wall of the protective sleeve 52 then bends synchronously with the bending angle. As the elastic truss 54 bends, the multiple infill balls 55 movably connected inside the elastic truss 54 gradually bend towards the bend. As the bending points of the elastic truss 54 gradually converge, the contact area at the bending points gradually shrinks. Then, the filling balls 55 gradually fill the internal space of the elastic truss 54 to form a fixed structure, causing the elastic truss 54 to stop bending. At this time, the cable is rigidly supported by the continuous aggregation of multiple filling balls 55, causing the cable bending to stop slowly, effectively avoiding excessive bending or stretching of the cable in certain areas. At the same time, when the cable is flipped, the stress decomposition component 6, together with the displacement block 58, makes micro-movements in the spiral groove frame 56 to alleviate the torsional force brought by the cable during construction, improve the service life of the cable, and as the cable moves, the grating sensor 57 in the spiral groove frame 56 monitors it at all times. When a critical value is reached, it provides timely feedback to prevent cable damage.

[0042] When the cable is subjected to axial tension or irregular torque, the stress decomposition component 6 starts to operate. The force is first transmitted to the wall ring frame 62, and then multiple radial elastic supports 65 inserted into the wall ring frame 62 begin to decompose the force vector into multiple radial and tangential components, which are then transmitted sequentially to the nested inner ring 67 inside the wall ring frame 62. The non-rigidly connected nested inner ring 67 forms a specific stiffness gradient, and during the transmission process, it is absorbed and dispersed step by step through the elastic deformation of multiple elastic supports 65. As the nested inner ring 67 moves, multiple arc-shaped diffraction blocks fixedly connected in the nested inner ring 67... The force is simultaneously diffracted and decomposed by the 68, and then inserted into the nested inner ring 67. During the transmission process, the force is absorbed and dispersed step by step through the elastic deformation of the support. At the same time, the elastic support 65 drives the transmission rod 64 to move in the annular fixed plate 61, while the miniature pressure sensor 66 monitors the transmission of force to prevent the cable from breaking or being damaged due to overload. Then, the rotating frame 63 works with the dynamic protection component 5 to alleviate the torsional force on the cable. Finally, the stress is diffracted into small stresses in multiple directions and greatly attenuated, which greatly alleviates the fatigue on the cable surface.

[0043] When the cable is installed, the adaptive sealing assembly 7 begins to operate. First, the cable passes through the first sealing lip ring 72 on the inner wall of the nested ring frame 71 and continues to move, contacting the second sealing lip ring 79. At this time, the tapered clamping plates 76, fixedly connected to the ends of multiple ball joint frames 74, drive the end clamping pads 78 and the alloy expansion pads 77 on the surface to cooperate closely and fit tightly against the cable surface. The tapered clamping plates 76 provide basic guidance and clamping range, while the shape memory alloy expansion pads 77 at room temperature remain relaxed to facilitate cable passage. When the cable is energized or reaches a specific operating temperature... The alloy expansion pad 77 can actively shrink to a preset diameter to achieve adaptive clamping with the outer diameter of the cable. As the cable moves and twists, the conical clamping liner 76, which is closely attached to the surface of the cable, moves on the ball joint frame 74 in the movable seat 73. The second sealing lip ring 79, which is sleeved on the surface of the cable, can move freely with the bending direction. Then, as the conical clamping liner 76 moves, the flexible connecting strip 75 moves together to provide tensile support. This allows the adaptive sealing assembly 7 to automatically adapt to cables of different diameters within a certain range, achieving an interference fit effect. The clamping force is evenly distributed, and there is no risk of local crushing.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A wear-resistant cable and its cable protection assembly, comprising a cable (1), characterized in that, The surface of the cable (1) is fitted with a buffer layer (2), the surface of the buffer layer (2) is fitted with an insulation layer (3), and the surface of the insulation layer (3) is fitted with a protective layer (4). The cable (1) is provided with a protective component at its end. The protective component includes a dynamic protective component (5). The dynamic protective component (5) is used to dynamically adapt the cable to bending changes. The dynamic protective component (5) is connected to the insulation layer (3). Stress decomposition component (6), which is used to decompose the stress vector generated by torsion, is connected to the dynamic protection component (5); An adaptive sealing assembly (7) is used to adapt to cables of different specifications, and the adaptive sealing assembly (7) is connected to the stress decomposition assembly (6).

2. The wear-resistant cable and its cable protection assembly according to claim 1, characterized in that, The dynamic protection component (5) includes a protective connector (51) sleeved on the surface of the insulating layer (3), and a protective sleeve (52) is fixedly connected to the end of the protective connector (51). Multiple arc-shaped ridge plates (53) are fixedly connected to the surface of the protective sleeve (52).

3. The wear-resistant cable and its cable protection assembly according to claim 2, characterized in that, The inner wall of the protective sleeve (52) is fixedly connected to a plurality of elastic trusses (54), which are arranged around the axis of the protective sleeve (52), and a plurality of filling balls (55) are movably connected inside the plurality of elastic trusses (54).

4. The wear-resistant cable and its cable protection assembly according to claim 3, characterized in that, The inner walls of the multiple elastic trusses (54) are fixedly connected to a spiral groove frame (56), the inner wall of the spiral groove frame (56) is provided with a spiral groove, the inner wall of the spiral groove frame (56) is fixedly connected to a multiple grating sensors (57), and the inner wall of the spiral groove frame (56) is also slidably connected to a displacement block (58).

5. The wear-resistant cable and its cable protection assembly according to claim 4, characterized in that, The stress decomposition assembly (6) includes an annular fixed disk (61) movably connected to the inner wall of the spiral groove frame (56), with a wall ring frame (62) movably connected to the end of the annular fixed disk (61), and a rotating frame (63) rotatably connected to the surface of the wall ring frame (62).

6. The wear-resistant cable and its cable protection assembly according to claim 5, characterized in that, The inner wall of the annular fixed disk (61) is slidably connected with multiple transmission rods (64), and a miniature pressure sensor (66) is provided above the multiple transmission rods (64). An elastic support (65) is fixedly connected to the bottom of the multiple transmission rods (64).

7. The wear-resistant cable and its cable protection assembly according to claim 6, characterized in that, The surface of the elastic support (65) is fitted with a nested inner ring (67), which is composed of multiple concentric but non-rigidly connected collars, and multiple arc-shaped diffraction blocks (68) are fixedly connected to the surface of the nested inner ring (67).

8. The wear-resistant cable and its cable protection assembly according to claim 7, characterized in that, The adaptive sealing assembly (7) includes a first sealing lip ring (72) movably connected to the surface of the insulating layer (3), and a nested ring frame (71) is fixedly connected to the end of the first sealing lip ring (72). A plurality of movable seats (73) are fixedly connected to the surface of the nested ring frame (71).

9. The wear-resistant cable and its cable protection assembly according to claim 8, characterized in that, The surface of the movable seat (73) is movably connected to a ball joint frame (74), and the end of the ball joint frame (74) is fixedly connected to a conical clamping liner (76). The surface of the nested ring frame (71) is also fixedly connected to multiple flexible connecting strips (75).

10. The wear-resistant cable and its cable protection assembly according to claim 9, characterized in that, The inner wall of the conical clamping liner (76) is fixedly connected with a plurality of alloy expansion pads (77), the inner wall of the end of the conical clamping liner (76) is fixedly connected with a clamping pad block (78), and the ends of the plurality of conical clamping liner (76) are fixedly connected with a second sealing lip ring (79).

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