Wire cable for aerospace

Abstract

The invention relates to the technical field of cables, in particular to a wire cable for aerospace, which comprises a cable inner core, a shielding layer, an insulating layer, a flame-retardant layer, a low-temperature-resistant layer and an anti-aging sheath, and is characterized in that a restorer is arranged outside the anti-aging sheath; the restorer comprises a first restorer frame and a second restorer frame which are symmetrically distributed and are each of a semi-cylindrical structure, each of the first restorer frame and the second restorer frame comprises two mounting semi-ring plates and a rotating semi-ring plate located between the two mounting semi-ring plates, and the two ends of each rotating semi-ring plate are connected with the side edges of the corresponding mounting semi-ring plates in a sliding fit mode. A repairing mechanism and a drying mechanism are correspondingly arranged on the rotating semi-ring plates in the two repairing device frames and can slide in the axis direction. The problems that the surface of the cable is prone to aging, and then notches, damage and the like are generated are greatly reduced, and the notches in the surface of the cable can be repaired through the arranged special repairing device under the condition that the cable is not disassembled or replaced.

Description

Technical Field

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

[0002] With the rapid development of power electronics technology, in the fields of military, communications, aerospace, etc., very high reliability requirements are put forward for the transmission of power and information in harsh environments. Since aerospace wires and cables are used in special and important environments, the cable surface is prone to aging, which leads to gaps, breakage and other problems. When the cable surface is damaged, most of the current practices are to replace it, but aerospace wires and cables are special cables with high manufacturing costs, and the replacement process is troublesome, time-consuming and labor-intensive, which seriously affects cable operations. Summary of the invention

[0003] In order to solve the above technical problems, the present invention proposes 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 arranged on the outside of the anti-aging sheath;

[0006] The surface repair method of the aerospace wire and cable is as follows: first assemble a repairer on the cable and move it to a position that needs to be repaired, first align the repair mechanism on the repairer with the notch, then fix the repairer, then inject a repair liquid into the notch by the repair mechanism, and at the same time, according to the contour of the repaired notch, push the repair mechanism horizontally or rotate the semi-ring plate, after the notch is repaired, rotate the current repair mechanism 180 degrees, align the drying mechanism with the repair notch injected with the repair liquid to dry it to complete the repair;

[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 arranged on the rotating semi-ring plate in the first repairer frame, and a drying mechanism is arranged 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 electric wire and cable. By providing an anti-aging sheath, the cable surface is easily aged in an aerospace environment, thereby reducing the risk of gaps, breakages, 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 is further described below in conjunction with the accompanying drawings and embodiments:

[0011] Figure 1 It is a structural schematic diagram of the cable in the present invention;

[0012] Figure 2 It is a 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 It is a schematic diagram of the inner structure of the first repair device frame in the present invention;

[0015] Figure 5 It is a schematic cross-sectional structural diagram of a rotating semi-ring plate in the first repair device frame of the present invention;

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

[0017] Figure 7 It is a 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. Insulating layer; 4. Flame retardant layer; 5. Low temperature resistant layer; 6. Anti-aging sheath; 7. Install 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 clamp; 10. Threaded rotary rod; 11. Rotating shaft seat; 12. Limit 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 easy 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 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 aging of the cable surface in the aerospace environment, thereby causing gaps, breakage and other problems.

[0021] A repair device is arranged 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 the present embodiment, each mounting semi-ring plate 7 is provided with alignment connection holes 71 on both radial sides. Specifically, two alignment connection holes 71 are provided 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. 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-ring plate 7, and the fixing assembly serves to fix the assembled repairer on the cable, so as to prevent the position of the repairer from moving during the repair process, thereby affecting the repair effect. As a further improvement of this embodiment, the fixing assembly includes an arc-shaped clamping plate 9 located on the inner side of the mounting semi-ring plate 7, and a threaded rotating rod 10 radially penetrating the mounting semi-ring plate 7 and threadedly mating, and the arc-shaped clamping plate 9 is connected to the threaded rotating rod 10.

[0025] A rotating slide groove 72 with two ends passing through is provided on the axial side wall of each mounting semi-ring plate 7, and the rotating slide groove 72 has the same arc length as the mounting semi-ring plate 7. The rotating semi-ring plate 8 has the same radius size as the mounting semi-ring plate 7, and two rotating slide strips 81 with the same arc length are provided on both sides of the rotating semi-ring plate 8, and the two rotating slide strips 81 are correspondingly slidably installed in the rotating slide groove 72. When the first repairer frame and the second repairer frame are assembled together, the rotating slide grooves 72 on the two repairer frames will form a complete circular rotating slide groove, so that the rotating semi-ring plate 8 can rotate in the complete circular rotating slide groove through the rotating slide strips 81.

[0026] Since both ends of the rotating slide groove 72 are open structures, in order to prevent the rotating sliding edge strip 81 from slipping out of the rotating slide groove 72, so that the rotating semi-ring plate 8 is disconnected from the mounting semi-ring plate 7, two groups of limiting components are arranged on the outer wall of each mounting semi-ring plate 7 and at the notch of the rotating slide groove 72. As a further improvement of this embodiment, each group of limiting components includes a rotating shaft seat 11 arranged on the outer wall of the mounting semi-ring plate 7 near the notch of the rotating slide groove 72, and a limiting baffle 12 rotatably mounted on the rotating shaft seat 11, and the limiting baffle 12 is in contact with the plate wall of the mounting semi-ring plate 7 when it is rotated to a vertical state.

[0027] As a further improvement of the present 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 rotating anti-slip strips 82 for easy rotation.

[0028] As a further improvement of the present 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 the present embodiment, 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 tube 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 tube 15 is arranged in the repair slide 13, and a pressure injection component 17 is arranged 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 tube 15, and then injected into the gap on the cable surface through the repair liquid injection tube 15.

[0030] As a further improvement of this embodiment, the drying mechanism includes a push 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-ring plate 8 and mounted on the push slide 18. The integrated drying plate 19 has its own power supply, and the integrated drying plate 19 is detachably mounted on the push slide 18, so as to facilitate quick replacement when damaged or out of power.

[0031] The surface repair method of the aerospace wire and cable is as follows: first assemble a 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, then fix the repairer by a fixing component, then inject a repair liquid into the gap by the repair mechanism, 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, rotate the current repair mechanism 180°, align the drying mechanism with the repair gap injected with the repair liquid to dry it to complete the repair.

[0032] 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 only describe the principles of 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. An aerospace wire and cable, characterized in that: 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 arranged on the outside of the anti-aging sheath (6); The surface repair method of the aerospace wire and cable comprises the following steps: first assembling a repairer on the cable and moving it to a position to be repaired, first aligning a repair mechanism on the repairer with the notch, and then fixing the repairer; then, injecting a repair liquid into the notch by the repair mechanism, and at the same time, horizontally pushing the repair mechanism or rotating a semi-ring plate (8) according to the contour of the repaired notch; after the notch is repaired, rotating the current repair mechanism by 180°, and aligning a drying mechanism with the repair notch injected with the repair liquid to dry the repaired notch; 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 two ends connected to the side edges of the mounting semi-ring plates (7) in a sliding manner. A repair mechanism is arranged on the rotating semi-ring plate (8) in the first repairer frame, and a drying mechanism is arranged 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.

2. The aerospace wire and cable according to claim 1, characterized in that: Each mounting semi-ring plate (7) is provided with aligning 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).

3. The aerospace wire and cable according to claim 2, 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).

4. The aerospace wire and cable according to claim 2, characterized in that: The fixing assembly comprises an arc-shaped clamping plate (9) located inside the mounting semi-ring plate (7), and a threaded rotating rod (10) radially penetrating the mounting semi-ring plate (7) and threadedly matched, wherein the arc-shaped clamping plate (9) is connected to the threaded rotating rod (10).

5. The aerospace wire and cable according to claim 2, characterized in that: Each group of limiting components includes a rotating shaft seat (11) arranged on the outer wall of the mounting semi-ring plate (7) near the notch of the rotating slide groove (72), and a limiting baffle (12) rotatably mounted on the rotating shaft seat (11), and the limiting baffle (12) is in contact with the plate wall of the mounting semi-ring plate (7) when it is rotated to a vertical state.

6. The aerospace wire and cable according to claim 2, characterized in that: The rotating semi-ring plate (8) has the same radius as the mounting semi-ring plate (7), and two rotating sliding edge strips (81) of equal arc length are arranged on both side edges of the rotating semi-ring plate (8), and the two rotating sliding edge strips (81) are correspondingly slidably mounted in the rotating sliding groove (72).

7. 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 on the upper and lower sides.

8. The aerospace wire and cable according to claim 1, characterized in that: 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.

9. The aerospace wire and cable according to claim 8, characterized in that: The repair mechanism comprises 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-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 arranged in the repair slide (13); and a pressure injection component (17) is arranged in the repair liquid storage cylinder (14).

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

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