A kind of wire and cable for aerospace

Abstract

The present invention relates to the field of cable technology, specifically to an aerospace wire and cable, comprising a cable core, a shielding layer, an insulating layer, a flame retardant layer, a low-temperature resistant layer, and an anti-aging sheath, wherein a repairer is provided on the outside of the anti-aging sheath; the repairer comprises a repairer frame and a second repairer frame that are symmetrically distributed and both have a semi-cylindrical structure, the first repairer frame and the second repairer frame each comprising two mounting semi-ring plates, a rotating semi-ring plate located between the two mounting semi-ring plates and slidably connected to the sides of the mounting semi-ring plates at both ends, a repair mechanism and a drying mechanism correspondingly provided on the rotating semi-ring plates in the two repairer frames, the repair mechanism and the drying mechanism being slidable along the axial direction. The present invention greatly reduces the susceptibility of the cable surface to aging, resulting in gaps, breakage, and other problems, and the dedicated repairer can repair the gaps on the cable surface without disassembling or replacing the cable.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, in particular to an electric wire and cable for aerospace use. Background Art

[0002] The rapid development of power electronics technology has placed extremely high reliability demands on power transmission and information transfer in harsh environments in fields such as military, communications, and aerospace. Because aerospace wires and cables are used in critical environments, they are prone to aging, leading to gaps and breakage. When cable surface damage occurs, the current practice is to replace it. However, aerospace wires and cables are specialized cables with high manufacturing costs, and the replacement process is cumbersome, time-consuming, and labor-intensive, seriously impacting cable operations. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides an aerospace wire and cable.

[0004] The technical problem to be solved by the present invention is achieved by adopting the following technical solutions:

[0005] An aerospace wire and cable, comprising a cable core formed by twisting two communication conductors, a shielding layer outside the cable core, an insulating layer coated outside the shielding layer, a flame retardant layer coated outside the insulating layer, a low-temperature resistant layer coated outside the flame retardant layer, and an anti-aging sheath coated outside the low-temperature resistant layer, wherein a repairer is provided on the outside of the anti-aging sheath;

[0006] The surface repair method for aerospace wires and cables comprises the following steps: first assembling a repairer on the cable and moving it to a position requiring repair; first aligning a repair mechanism on the repairer with a notch; then fixing the repairer; then injecting a repair fluid into the notch by the repair mechanism; and simultaneously pushing the repair mechanism horizontally or rotating a semi-ring plate according to the contour of the repaired notch; after the notch is repaired, rotating the current repair mechanism 180 degrees, aligning a drying mechanism with the repaired notch to dry the repaired notch;

[0007] The repairer includes a first repairer frame and a second repairer frame which are symmetrically distributed and both have a semi-cylindrical structure. The first repairer frame and the second repairer frame each include two mounting semi-ring plates, a rotating semi-ring plate located between the two mounting semi-ring plates and with both ends slidingly connected to the side edges of the mounting semi-ring plates. A repair mechanism is provided on the rotating semi-ring plate in the first repairer frame, and a drying mechanism is provided on the rotating semi-ring plate in the second repairer frame. The repair mechanism and the drying mechanism can slide along the axial direction.

[0008] The beneficial effects of the present invention are:

[0009] The present invention provides an aerospace wire and cable. By providing an anti-aging sheath, the cable surface is greatly reduced from aging in an aerospace environment, thereby causing gaps, breakage and other problems. A special repairer is provided, which has the characteristics of rapid assembly and disassembly, convenient operation and use, and can repair gaps on the cable surface without disassembling and replacing the cable, thereby reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0011] Figure 1 Schematic diagram of the structure of the cable in the present invention;

[0012] Figure 2 Schematic diagram of the structure of the repair device in the present invention;

[0013] Figure 3 This is a schematic diagram of the inner structure of the semi-ring plate installed in the present invention;

[0014] Figure 4 Schematic diagram of the inner structure of the first repair device frame in the present invention;

[0015] Figure 5 Schematic diagram of the cross-sectional structure of the rotating semi-ring plate in the first repair device frame of the present invention;

[0016] Figure 6 Schematic diagram of the outer structure of the second repair device frame in the present invention;

[0017] Figure 7 Schematic diagram of the inner structure of the second repair device frame in the present invention;

[0018] In the figure: 1. Communication conductor; 2. Shielding layer; 3. Insulation layer; 4. Flame retardant layer; 5. Low temperature resistant layer; 6. Anti-aging sheath; 7. Installing semi-ring plate; 71. Alignment connection hole; 72. Rotating slide groove; 8. Rotating semi-ring plate; 81. Rotating sliding edge strip; 82. Rotating anti-slip strip; 83. Moving slide groove; 9. Arc splint; 10. Threaded rotating rod; 11. Rotating shaft seat; 12. Limiting baffle; 13. Repair slide seat; 14. Repair liquid storage cylinder; 15. Repair liquid injection pipe; 16. Flow channel; 17. Pressure injection component; 18. Push slide plate; 19. Integrated drying plate. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1As shown, an aerospace wire and cable includes a cable core formed by twisting two communication conductors 1, a shielding layer 2 disposed outside the cable core, an insulating layer 3 coated outside the shielding layer 2, a flame-retardant layer 4 coated outside the insulating layer 3, a low-temperature resistant layer 5 coated outside the flame-retardant layer 4, and an anti-aging sheath 6 coated outside the low-temperature resistant layer 5. The anti-aging sheath 6 greatly reduces the risk of cable surface aging, resulting in gaps and damage, in aerospace environments.

[0021] A repairer is provided on the outside of the anti-aging sheath 6 .

[0022] like Figures 2 to 7 As shown, the repairer includes a first repairer frame and a second repairer frame which are symmetrically distributed and both have a semi-cylindrical structure. The first repairer frame and the second repairer frame each include two mounting semi-ring plates 7, and a rotating semi-ring plate 8 located between the two mounting semi-ring plates 7 and with both ends slidingly connected to the side edges of the mounting semi-ring plates 7. A repair mechanism is provided on the rotating semi-ring plate 8 in the first repairer frame, and a drying mechanism is provided on the rotating semi-ring plate 8 in the second repairer frame. The repair mechanism and the drying mechanism can slide along the axial direction.

[0023] As a further improvement of this embodiment, each mounting semi-ring plate 7 is provided with alignment connection holes 71 on both radial sides. Specifically, there are two alignment connection holes 71 on each side. The positions and sizes of the alignment connection holes 71 on the mounting semi-ring plates 7 in the first repairer frame and the second repairer frame match each other, and the two repairer frames are assembled into a complete repairer by passing a fixing pin through the alignment connection holes 71.

[0024] A fixing assembly is provided in the middle of each mounting semi-annular plate 7. The fixing assembly serves to secure the assembled repair device to the cable, preventing the repair device from shifting during the repair process, which could affect the repair effect. As a further improvement to this embodiment, the fixing assembly includes an arc-shaped clamping plate 9 located inside the mounting semi-annular plate 7, and a threaded rod 10 that radially extends through the mounting semi-annular plate 7 and is threadedly engaged. The arc-shaped clamping plate 9 is connected to the threaded rod 10.

[0025] Each mounting semi-annular plate 7 is provided with a rotating chute 72 extending through both ends on its axial side wall. The rotating chute 72 has the same arc length as the mounting semi-annular plate 7. The rotating semi-annular plate 8 has the same radius as the mounting semi-annular plate 7. Two rotating edge strips 81 of equal arc length are provided on both sides of the rotating semi-annular plate 8. The two rotating edge strips 81 are slidably mounted in the rotating chute 72. When the first repairer frame and the second repairer frame are assembled together, the rotating chute 72 on the two repairer frames will form a complete circular rotating chute, allowing the rotating semi-annular plate 8 to rotate in the complete circular rotating chute via the rotating edge strips 81.

[0026] Since both ends of the rotational chute 72 are open, in order to prevent the rotational sliding strip 81 from slipping out of the rotational chute 72 and causing the rotational semi-ring plate 8 to become disconnected from the mounting semi-ring plate 7, two sets of limiting components are provided on the outer wall of each mounting semi-ring plate 7, located at the notch of the rotational chute 72. As a further improvement to this embodiment, each set of limiting components includes a rotational shaft seat 11 provided on the outer wall of the mounting semi-ring plate 7 near the notch of the rotational chute 72, and a limiting baffle 12 rotatably mounted on the rotational shaft seat 11. When the limiting baffle 12 is rotated to a vertical position, it abuts against the wall of the mounting semi-ring plate 7.

[0027] As a further improvement of this embodiment, the upper and lower sides of the outer walls of the two rotating semi-ring plates 8 in the first repairer frame and the second repairer frame are provided with rotation anti-slip strips 82 for easy rotation.

[0028] As a further improvement of this embodiment, the middle parts of the two rotating semi-ring plates 8 in the first repairer frame and the second repairer frame are both provided with movable sliding grooves 83 distributed along the axial direction.

[0029] As a further improvement of this embodiment, the repair mechanism includes a repair slide 13 slidably mounted in the movable slide 83, a repair liquid storage cylinder 14 arranged on the repair slide 13, and a repair liquid injection pipe 15 located on the inner side of the rotating semi-ring plate 8 and arranged on the repair slide 13. A flow channel 16 connecting the repair liquid storage cylinder 14 and the repair liquid injection pipe 15 is provided in the repair slide 13, and a pressure injection component 17 is provided in the repair liquid storage cylinder 14. Specifically, the pressure injection component 17 is composed of a pressure plate adapted to the inner diameter of the repair liquid storage cylinder 14 and a push rod connected to the outside of the pressure plate. When injecting the repair liquid, the pressure plate is pushed by the push rod to squeeze the repair liquid in the repair liquid storage cylinder 14 through the flow channel 16 to the repair liquid injection pipe 15, and then injected into the gap on the cable surface through the repair liquid injection pipe 15.

[0030] As a further improvement to this embodiment, the drying mechanism includes a push slide 18 slidably mounted within the movable chute 83, and an integrated drying plate 19 located inside the rotating semi-annular plate 8 and mounted on the push slide 18. The integrated drying plate 19 has its own power supply and is detachably mounted on the push slide 18 to facilitate quick replacement in the event of damage or power failure.

[0031] The surface repair method of the aerospace wire and cable is as follows: first assemble the repairer on the cable and move it to the position that needs to be repaired, first align the repair mechanism on the repairer with the gap, and then fix the repairer by the fixing component. Next, the repair mechanism injects repair liquid into the gap, and at the same time, according to the contour of the repair gap, push the repair mechanism horizontally or rotate the semi-ring plate 8. After the gap is repaired, the current repair mechanism is rotated 180 degrees, and the drying mechanism is aligned with the repair gap injected with the repair liquid to dry it to complete the repair.

[0032] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and description merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to 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. An aerospace wire and cable, characterized by: The invention comprises a cable core formed by twisting two communication conductors (1), a shielding layer (2) outside the cable core, an insulating layer (3) coated outside the shielding layer (2), a flame retardant layer (4) coated outside the insulating layer (3), a low-temperature resistant layer (5) coated outside the flame retardant layer (4), and an anti-aging sheath (6) coated outside the low-temperature resistant layer (5), wherein a repairer is provided on the outside of the anti-aging sheath (6); The repairer comprises a first repairer frame and a second repairer frame which are symmetrically distributed and both have a semi-cylindrical structure. The first repairer frame and the second repairer frame both comprise two mounting semi-ring plates (7), and a rotating semi-ring plate (8) located between the two mounting semi-ring plates (7) and having both ends connected to the side edges of the mounting semi-ring plates (7) in a sliding manner. A repair mechanism is provided on the rotating semi-ring plate (8) in the first repairer frame, and a drying mechanism is provided on the rotating semi-ring plate (8) in the second repairer frame. Both the repair mechanism and the drying mechanism can slide along the axial direction. Each mounting half-ring plate (7) is provided with alignment connection holes (71) on both radial sides, a fixing component is provided in the middle, a rotating slide groove (72) with two ends passing through is provided on the axial side wall, and two groups of limiting components are provided on the outer wall and at the notch of the rotating slide groove (72); Each set of limiting components includes a rotating shaft seat (11) arranged on the outer wall of the mounting semi-annular plate (7) near the notch of the rotating slide groove (72), and a limiting baffle (12) rotatably mounted on the rotating shaft seat (11), wherein the limiting baffle (12) is in contact with the plate wall of the mounting semi-annular plate (7) when rotated to a vertical state; The middle parts of the two rotating half-ring plates (8) in the first repair device frame and the second repair device frame are both provided with movable sliding grooves (83) distributed along the axial direction; The repair mechanism includes a repair slide (13) slidably mounted in the movable slide groove (83), a repair liquid storage cylinder (14) arranged on the repair slide (13), and a repair liquid injection pipe (15) located on the inner side of the rotating semi-annular plate (8) and arranged on the repair slide (13); a flow channel (16) connecting the repair liquid storage cylinder (14) and the repair liquid injection pipe (15) is provided in the repair slide (13); and a pressure injection component (17) is provided in the repair liquid storage cylinder (14).

2. The aerospace wire and cable according to claim 1, characterized in that: The positions and sizes of the alignment connection holes (71) on the mounting semi-ring plates (7) in the first repairer frame and the second repairer frame match each other, and the two repairer frames are assembled into a complete repairer by passing a fixing pin through the alignment connection hole (71).

3. The aerospace wire and cable according to claim 1, characterized in that: The fixing assembly comprises an arc-shaped clamping plate (9) located inside the mounting semi-annular plate (7), and a threaded rotating rod (10) radially penetrating the mounting semi-annular plate (7) and threadedly engaged with the mounting semi-annular plate (7), wherein the arc-shaped clamping plate (9) is connected to the threaded rotating rod (10).

4. The aerospace wire and cable according to claim 1, characterized in that: The rotating semi-ring plate (8) has the same radius as the mounting semi-ring plate (7), and two rotating sliding strips (81) of equal arc length are provided on both side edges of the rotating semi-ring plate (8), and the two rotating sliding strips (81) are correspondingly slidably mounted in the rotating slide groove (72).

5. The aerospace wire and cable according to claim 1, characterized in that: The outer walls of the two rotating semi-ring plates (8) in the first repairer frame and the second repairer frame are both provided with rotating anti-slip strips (82) for easy rotation.

6. The aerospace wire and cable according to claim 1, characterized in that: The drying mechanism comprises a pushing slide (18) slidably mounted in the movable slide groove (83), and an integrated drying plate (19) located on the inner side of the rotating semi-annular plate (8) and mounted on the pushing slide (18).

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