Cable reel for aerospace cable

Abstract

The invention provides a cable reel for a spaceflight cable, which comprises a first reel, a second reel and a telescopic mechanism, and the two ends of the telescopic mechanism are respectively connected with the first reel and the second reel; the first reel comprises a first outer reel and a first inner reel, and the first inner reel is connected with the first outer reel through a first center bearing; the second reel comprises a second outer reel and a second inner reel, and the second inner reel is connected with the second outer reel through a second center bearing; the telescopic mechanism comprises an inner shaft and an outer shaft, the inner shaft is embedded in the outer shaft, the outer shaft is fixedly connected with the first inner reel, and the inner shaft is fixedly connected with the second inner reel; a guide groove is formed in the outer surface of the inner shaft and spirally extends from one end of the inner shaft to the other end of the inner shaft; a plurality of limiting grooves are formed in the guide groove at intervals, and the limiting grooves form a spiral shape outwards from the guide groove; a bulge is arranged on the inner surface of the outer shaft; and during stretching, the bulge slides along the direction of the guide groove and is positioned in any limiting groove.

Description

Technical Field

[0001] The present invention relates to the technical field of cable reels, and in particular to a cable reel for aerospace cables. Background Art

[0002] With the massive increase in the scale of global space utilization, the frequency of my country's space missions is also increasing. More and more missions also mean that the assembly and testing efficiency of space launch vehicles, satellites and spacecraft must be improved as much as possible in a short period of time.

[0003] In the final assembly and testing of aerospace production, the storage, access or installation of cables has always been a major issue to be resolved: 1) Space cables are highly precise and cannot be easily stepped on or collided with; 2) In order to ensure the connection length between product equipment and product equipment or ground test equipment, aerospace cables are often tens of meters long and currently still rely mainly on manual winding and installation. Therefore, multiple people are required to cooperate in storage, and it is easy to cause local twisting and damage to the cables, affecting their use and reducing production efficiency; 3) Due to the protective requirements of aerospace cables, many cables are equipped with thicker rubber protective layers or lightning-proof metal skins. Therefore, the weight of aerospace cables is much greater than that of ordinary cables, which inevitably leads to difficulties in handling; 4) Spacecraft or launch vehicles may have hundreds of test cables or equipment connections. Cables, if placed randomly, have the risk of being confused with each other; 5) Due to the lack of suitable cable reels, at present, cables can only be piled on the workbench, shelves and the ground and simply protected. If certain cables are needed, they can only be carried by manpower, trolleys or hydraulic vehicles, which is quite time-consuming and labor-intensive, so it is very inconvenient to take or install cables; 6) Aerospace cables sometimes require long-term and long-distance transportation, so it is necessary to protect the cables before transportation; 7) Aerospace cables are of many types and specifications. The use of a single cable reel cannot meet production needs, and the use of multiple cable reels will cause difficulties in sorting and storage; 8) If the aerospace cables cannot be well fixed during installation, they may cause the cables to collide with the ground or products, causing unexpected damage.

[0004] The existing patent document with publication number CN217626915U discloses a cable reel for oil tank cleaning protective equipment, including a cable reel bracket, a bearing is installed inside the cable reel bracket, the number of the bearings is two, an intermediate washer is arranged between the two bearings, a cable reel is installed inside the bearing, the back of the cable reel bracket is fixedly connected with an end cover by screws, the outer surface of the screw is sleeved with a flat washer, the outer surface of the flat washer is fitted with the back of the cable reel bracket, the outer surface of the screw is sleeved with a spring washer, the outer surface of the spring washer is fitted with the outer surface of the flat washer, after the installation of the utility model is completed, the cable head can be fixed, and the cable can be wound by manually rotating the cable reel.

[0005] Most of the conventional cable reels on the market are small cable reels suitable for thinner and lighter cables, and cannot meet the needs of organizing and storing a variety of cable reels. Therefore, it is urgent to design a cable reel that meets the special needs of aerospace production and put it into use to solve the above problems. Summary of the invention

[0006] In view of the defects in the prior art, an object of the present invention is to provide a cable reel for aerospace cables.

[0007] A cable reel for aerospace cables provided by the present invention comprises a first reel, a second reel and a telescopic mechanism, wherein two ends of the telescopic mechanism are respectively connected to the first reel and the second reel; The first reel comprises a first outer reel and a first inner reel, wherein the first inner reel is connected to the first outer reel via a first central bearing; The second reel comprises a second outer reel and a second inner reel, and the second inner reel is connected to the second outer reel via a second center bearing; The telescopic mechanism comprises an inner shaft and an outer shaft, wherein the inner shaft is embedded in the outer shaft, the outer shaft is fixedly connected to the first inner reel, and the inner shaft is fixedly connected to the second inner reel; A guide groove is arranged on the outer surface of the inner shaft, and the guide groove extends in a spiral shape from one end of the inner shaft to the other end of the inner shaft; A plurality of limiting grooves are arranged at intervals on the guide groove, and the limiting grooves form a spiral shape outward from the guide groove; A protrusion is provided on the inner surface of the outer shaft; During extension and retraction, the protrusion slides along the direction of the guide groove and is positioned in any limiting groove.

[0008] Preferably, the guide grooves include a plurality of guide grooves, which are spaced apart and distributed on the outer surface of the inner shaft, and the protrusions include a plurality of protrusions; A plurality of said protrusions are circumferentially distributed on the inner surface of the outer shaft; Any of the protrusions corresponds to any of the guide grooves; Any of the guide grooves is provided with a plurality of limiting grooves.

[0009] Preferably, the guide grooves include three, and the three guide grooves are distributed on the outer surface of the inner shaft at intervals of 120°; The protrusions include three; Any of the protrusions corresponds to any of the guide grooves.

[0010] Preferably, a mark is further provided on the outer surface of the inner shaft, and the mark comprises a plurality of marks, and any of the marks corresponds to any of the limiting grooves; When the edge of the outer shaft coincides with any mark, the protrusion enters any limiting groove corresponding to any mark from the guiding groove.

[0011] Preferably, the protrusion and the guide groove have a clearance fit, and the protrusion and the limiting groove have a transition fit.

[0012] Preferably, a transition section is provided at one end of the outer shaft engaged with the inner shaft, the transition section comprises an arc portion, and the radius of the transition section gradually decreases along the direction from the outer shaft to the inner shaft.

[0013] Preferably, the first outer reel and the second outer reel are respectively provided with a card slot and a card block, and a card block is provided between any two card slots; The plurality of cable reels are in a stacked state, in which the card slot of one cable reel is engaged with the card block of another cable reel.

[0014] Preferably, a first isolation disk is further provided between the first inner reel and the outer shaft, and the first isolation disk is fixed on the first inner reel; A second isolation disk is further arranged between the second inner reel and the inner shaft, and the second isolation disk is fixed on the second inner reel.

[0015] Preferably, holes are provided on the first isolation disk and the second isolation disk, and the holes are distributed along the circumference of the first isolation disk and the second isolation disk.

[0016] Preferably, the first outer reel is connected to the outer ring of the first central bearing, and the first inner reel is connected to the inner ring of the first central bearing; The second outer reel is connected to the outer ring of the second center bearing, and the second inner reel is connected to the inner ring of the second center bearing.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention adjusts the length of the telescopic mechanism by setting the relative rotation of the inner shaft and the outer shaft to achieve the telescopic movement of the cable reel, thereby adapting to different aerospace cable length specifications; 2. The present invention provides a guide groove and a limit groove on the outer wall of the inner shaft, and a protrusion on the inner wall of the outer shaft. The protrusion slides with the guide groove to guide the protrusion in a specific direction, and the protrusion is inserted into the limit groove. The cable reel can adjust the telescopic position only when it is rotated in a specific way, thereby avoiding the external force from causing the telescopic mechanism to move, and facilitating the cable reel to accommodate the storage and transportation of cables of different specifications and lengths. 3. The present invention provides a card slot and a card block on both the first outer reel and the second outer reel, and the card slot and the card block are interlocked with each other, so that multiple cable reels can be stacked on each other, which greatly reduces the space occupied when storing aerospace cables; 4. The present invention provides holes on the first isolation disk and the second isolation disk, and the holes allow the cable plug to be fixed by materials such as cable ties, thereby preventing damage to the cable plug during transportation or movement; 5. The present invention can protect the aerospace cable when storing it, reduce the manpower requirements when winding and installing the aerospace cable, reduce the local curling that may cause damage to the aerospace cable, improve the convenience of moving the aerospace cable, ensure that the aerospace cable is stored neatly and orderly, and make the winding and installation operations of the aerospace cable more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 A schematic diagram of the three-dimensional structure of the cable reel of the present invention is mainly embodied; Figure 2 A top view mainly showing the cable reel of the present invention; Figure 3 A schematic diagram mainly showing the connection between the first inner reel and the first center bearing of the present invention; Figure 4 A schematic diagram mainly showing the connection between the first outer reel and the first center bearing of the present invention; Figure 5 It mainly shows the top view of the inner shaft and the outer shaft when they are combined in the present invention; Figure 6 A schematic diagram of the three-dimensional structure of the outer shaft of the present invention is mainly embodied; Figure 7 A side view of a cable reel primarily embodying the present invention.

[0019] As shown in the figure: DETAILED DESCRIPTION

[0020] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0021] like Figure 1 and Figure 2 As shown, a cable reel for aerospace cables provided by the present invention comprises a first reel, a second reel and a telescopic mechanism, and the two ends of the telescopic mechanism are respectively connected to the first reel and the second reel. The first reel comprises a first outer reel 1 and a first inner reel 3, the first inner reel 3 is connected to the first outer reel 1 through a first central bearing 10, and the second reel comprises a second outer reel 2 and a second inner reel 4, the second outer reel 2 and the second inner reel 4 are connected through a second central bearing. The telescopic mechanism comprises an inner shaft 7 and an outer shaft 8, the inner shaft 7 is embedded in the outer shaft 8, the outer shaft 8 is fixedly connected to the first inner reel 3, and the inner shaft 7 is fixedly connected to the second inner reel 4. A guide groove 11 is provided on the outer surface of the inner shaft 7, and the guide groove 11 extends from one end of the inner shaft 7 to the other end of the inner shaft 7 in a spiral shape, and a plurality of limit grooves 12 are arranged at intervals on the guide groove 11, and the limit groove 12 forms a spiral shape outward from the guide groove 11, and a protrusion 13 is provided on the inner surface of the outer shaft 8. During extension and retraction, the protrusion 13 slides along the direction of the guide groove 11 and is positioned in any limiting groove 12 .

[0022] like Figure 3 and Figure 4 As shown, the present invention is provided with a first outer reel 1 connected to the outer ring of the first center bearing 10, a first inner reel 3 connected to the inner ring of the first center bearing 10; a second outer reel 2 connected to the outer ring of the second center bearing, a second inner reel 4 connected to the inner ring of the second center bearing, an inner shaft 7 fitted in an outer shaft 8, an outer shaft 8 fixedly connected to the first inner reel 3, and an inner shaft 7 fixedly connected to the second inner reel 4, so that when the first outer reel 1 is stationary, the first inner reel 3 rotates, or when the first inner reel 3 is stationary, the first outer reel 1 rotates, and also when the second outer reel 2 is stationary, the second inner reel 4 rotates, or when the second inner reel 4 is stationary, the second outer reel 2 rotates. When the first inner reel 3 or the second inner reel 4 is manually rotated, the first outer reel 1 and the second outer reel 2 remain stationary, and the first inner reel 3 and the second inner reel 4 rotate simultaneously, so that the aerospace cable can be retracted and released on the cable reel. The first outer reel 1 or the second outer reel 2 is manually rotated, the first inner reel 3 and the second inner reel 4 remain stationary, and the first outer reel 1 and the second outer reel 2 are rotated, so as to realize the movement and change of the cable reel position.

[0023] like Figure 5 and Figure 6 As shown, the present invention includes an inner shaft 7 and an outer shaft 8 by setting a telescopic mechanism, the inner shaft 7 is embedded in the outer shaft 8, and the inner shaft 7 and the outer shaft 8 are preferably hollow cylinders, so as to reduce the overall weight of the cable reel, make the cable reel lighter, and at the same time, the inner shaft 7 can be embedded in the hollow outer shaft. A guide groove 11 is provided on the outer surface of the inner shaft 7, and the guide groove 11 extends from one end of the inner shaft 7 to the other end of the inner shaft 7 in a spiral shape. A plurality of limiting grooves 12 are arranged at intervals on the guide groove 11, and the limiting groove 12 forms a spiral shape outward from the guide groove 11. A protrusion 13 is provided on the inner surface of the outer shaft 8. When telescoping, the protrusion 13 slides along the direction of the guide groove 11 and is positioned in any limiting groove 12. When the length of the telescopic mechanism needs to be increased or decreased, the protrusion 13 is first rotated out of the limiting groove 12, and then the protrusion 13 slides along the guide groove 11 to another limiting groove 12, and the protrusion 13 is rotated into the limiting groove 12, and the protrusion 13 is clamped into the limiting groove 12 to complete the length adjustment of the telescopic mechanism. The length adjustment of the telescopic mechanism adapts to cables of different specifications and lengths, making the cable storage space more compact. The present invention is introduced through the spiral guide groove 11, so that the protrusion 13 can easily reach the limiting groove 12 in a rotating manner, and the structure of the spiral limiting groove 12 clamps the protrusion 13, so that the inner shaft 7 and the outer shaft 8 are more firmly engaged. The cable reel only adjusts the telescopic position when rotating in a specific manner, avoiding external force to cause the telescopic mechanism to act, making it easy for the cable reel to adapt to the storage and transportation of cables of different specifications and lengths, and the present invention adopts a full mechanical structure to ensure safety during long-distance transportation.

[0024] Specifically, the guide grooves 11 include a plurality of guide grooves 11, which are spaced apart on the outer surface of the inner shaft 7; the protrusions 13 include a plurality of protrusions 13, which are circumferentially distributed on the inner surface of the outer shaft 8; any protrusion 13 corresponds to any guide groove 11, and any guide groove 11 is provided with a plurality of limiting grooves 12. Preferably, the guide grooves 11 include three, which are spaced apart at 120° on the outer surface of the inner shaft 7; the protrusions 13 include three, and any protrusion 13 corresponds to any guide groove 11. The three protrusions 13 correspond to the three guide grooves 11, respectively, and the three guide grooves 11 control the inner shaft 7 to fit in three different directions on the inner wall of the outer shaft 8. The protrusions 13 can be unscrewed only when external forces in three different directions are satisfied. If only external forces in one direction are satisfied, it is not easy to unscrew the protrusions 13. In order to make the protrusions 13 slide in the guide grooves 11 and easily enter the limiting grooves 12, the protrusions 13 are provided with clearance fit with the guide grooves 11, and the protrusions 13 are provided with transition fit with the limiting grooves 12.

[0025] In order to facilitate the adjustment of the length of the telescopic mechanism, a mark 17 is set on the outer surface of the inner shaft 7, and the mark 17 includes multiple marks, and any mark 17 corresponds to any limiting groove 12. A preferred embodiment is: a circular protrusion 13 is set on the inner wall of the outer shaft 8 at a distance of 5 cm from the end that is embedded with the inner shaft 7, and a mark 17 is set on the outer wall of the inner shaft 7 at a distance of 5 cm from the end that is embedded with the outer shaft 8, and the next mark 17 is set 5 cm from the mark 17 to the other end of the inner shaft, and so on, and a certain number of marks 17 are set to meet the adjustment requirements of different lengths. During the telescopic process, when the edge of the outer shaft 8 coincides with any mark 17, the protrusion 13 is exactly at the entrance of the limiting groove 12, and the protrusion 13 enters any limiting groove 12 corresponding to any mark 17 from the guide groove 11.

[0026] Specifically, one end of the outer shaft 8 engaged with the inner shaft 7 is provided with a transition section 14, the transition section 14 includes an arc portion, and the radius of the transition section 14 gradually decreases from the outer shaft 8 to the inner shaft 7. Therefore, when the cable is rolled up, it will not be damaged due to the thickness difference between the inner shaft 7 and the outer shaft 8.

[0027] Specifically, Figure 1 and Figure 7 As shown, the first outer reel 1 and the second outer reel 2 are respectively provided with a card slot 5 and a card block 6, and a card block 6 is provided between any two card slots 5. The multiple cable reels include a stacked state. In the stacked state, the card slot 5 of one cable reel is interlocked with the card block 6 of another cable reel, and at the same time, the card block 6 of one cable reel is interlocked with the card slot 5 of another cable reel, so that the multiple cable reels can be stacked and fixed horizontally, and the cables can be protected when they are stored, and the manpower requirements when winding and installing the cables are reduced, and the local curling that may cause damage to the cables is reduced, thereby improving the convenience of moving the cables, ensuring the neatness and orderliness of the cable storage, and making the cable winding and installation operations more convenient. At the same time, through the engagement of the card slot 5 and the card block 6, the ability of multiple cable reels to be stacked on each other is achieved.

[0028] Specifically, a first isolation disk 15 is provided between the first inner reel 3 and the outer shaft 8, and the first isolation disk 15 is fixed on the first inner reel 3. A second isolation disk 16 is provided between the second inner reel 4 and the inner shaft 7, and the second isolation disk 16 is fixed on the second inner reel 4. In this way, the connection relationship between the first outer reel 1, the first inner reel 3, the first isolation disk 15 and the outer shaft 8 is as follows: the first outer reel 1 is connected to the outer ring of the first center bearing 10, the first inner reel 3 is connected to the inner ring of the first center bearing 10, the first isolation disk 15 is fixed on the first inner reel 3, and the first isolation disk 15 is fixedly connected to the outer shaft 8; the connection relationship between the second outer reel 2, the second inner reel 4, the second isolation disk 16 and the inner shaft 7 is as follows: the second outer reel 2 is connected to the outer ring of the second center bearing, the second inner reel 4 is connected to the inner ring of the second center bearing, the second isolation disk 16 is fixed on the second inner reel 4, and the second isolation disk 16 is fixedly connected to the inner shaft 7. Preferably, the diameter of the first outer reel 1 is larger than the diameter of the first isolation disc 15, the diameter of the first isolation disc 15 is larger than the diameter of the first inner reel 3, and similarly the diameter of the second outer reel 2 is larger than the diameter of the second isolation disc 16, the diameter of the second isolation disc 16 is larger than the diameter of the second inner reel 4. When manually adjusting the length of the telescopic mechanism, the first isolation disc 15 and the second isolation disc 16 can be held to allow the protrusion 13 to slide along the guide groove 11 and determine the position. When the front end of the transition section 14 contacts the mark 17, the protrusion 13 is located at the entrance of the limiting groove 12. Then, the first isolation disc 15 and the second isolation disc 16 are held to rotate the telescopic mechanism so that the protrusion 13 is stuck in the limiting groove 12 to complete the adjustment of the length of the telescopic mechanism.

[0029] More specifically, holes 9 are provided on the first isolation disk 15 and the second isolation disk 16. The holes 9 are distributed along the circumference of the first isolation disk 15 and the second isolation disk 16. The holes 9 are preferably arc-shaped holes. Figure 1 and Figure 3 As shown, arc holes distributed in a circular pattern are provided near the edges of the first isolation disk 15 and the second isolation disk 16. The arc holes allow the cable plug to be fixed by materials such as cable ties to prevent damage to the cable plug during transportation or movement.

[0030] The present invention has a simple structure and flexible operation. It can control the length of the telescopic mechanism through the relative rotation of the inner and outer reels, the inner shaft 7 and the outer shaft 8 to achieve the telescopic movement of the cable reel. By setting the protrusion 13 to slide with the guide groove 11 and setting the protrusion 13 to be stuck in the limit groove 12, the cable reel can adjust the telescopic position only when it is rotated in a specific way, avoiding the external force to cause the telescopic mechanism to move, and facilitating the cable reel to adapt to the storage and transportation of cables of different specifications and lengths; through the engagement of the card slot 5 and the card block 6, the ability of multiple cable reels to stack on each other is achieved. The present invention can protect the cable when storing the cable, reduce the manpower requirements when winding and installing the cable, reduce the local curling that will cause damage to the cable, improve the convenience of moving the cable, ensure the neatness and orderliness of the cable storage, and make the cable winding and installation operations more convenient. The present invention adopts a full mechanical structure to ensure safety during long-distance transportation, and uses a telescopic mechanism to adapt to cables of different specifications and lengths, making the cable storage space more compact.

[0031] The present invention can protect the aerospace cable when storing it, reduce the manpower requirements when winding and installing the aerospace cable, reduce local curling that may cause damage to the aerospace cable, improve the convenience of moving the aerospace cable, ensure that the aerospace cable is stored neatly and orderly, and make the winding and installation operations of the aerospace cable more convenient.

[0032] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element 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 application.

[0033] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A cable reel for aerospace cables, characterized in that: It comprises a first reel, a second reel and a telescopic mechanism, wherein two ends of the telescopic mechanism are respectively connected to the first reel and the second reel; The first reel comprises a first outer reel (1) and a first inner reel (3), wherein the first inner reel (3) is connected to the first outer reel (1) via a first central bearing (10); The second reel comprises a second outer reel (2) and a second inner reel (4), wherein the second inner reel (4) is connected to the second outer reel (2) via a second central bearing; The telescopic mechanism comprises an inner shaft (7) and an outer shaft (8), the inner shaft (7) being embedded in the outer shaft (8), the outer shaft (8) being fixedly connected to the first inner reel (3), and the inner shaft (7) being fixedly connected to the second inner reel (4); A guide groove (11) is provided on the outer surface of the inner shaft (7), and the guide groove (11) extends in a spiral shape from one end of the inner shaft (7) to the other end of the inner shaft (7); A plurality of limiting grooves (12) are arranged at intervals on the guide groove (11), and the limiting grooves (12) form a spiral shape outward from the guide groove (11); A protrusion (13) is provided on the inner surface of the outer shaft (8); When extending or retracting, the protrusion (13) slides along the direction of the guide groove (11) and is positioned in any limiting groove (12).

2. The cable reel for aerospace cables according to claim 1, characterized in that: The guide grooves (11) include a plurality of guide grooves (11), the plurality of guide grooves (11) are spaced apart and distributed on the outer surface of the inner shaft (7), and the protrusions (13) include a plurality of protrusions (13); A plurality of protrusions (13) are circumferentially distributed on the inner surface of the outer shaft (8); Any of the protrusions (13) corresponds to any of the guide grooves (11); A plurality of limiting grooves (12) are provided on any one of the guide grooves (11).

3. The cable reel for aerospace cables according to claim 2, characterized in that: The guide grooves (11) include three guide grooves (11), which are distributed on the outer surface of the inner shaft (7) at intervals of 120°; The protrusions (13) include three; Any of the protrusions (13) corresponds to any of the guide grooves (11).

4. The cable reel for aerospace cables according to claim 1, characterized in that: A mark (17) is also provided on the outer surface of the inner shaft (7), wherein the mark (17) comprises a plurality of marks, and any one of the marks (17) corresponds to any one of the limiting grooves (12); When the edge of the outer shaft (8) coincides with any mark (17), the protrusion (13) enters from the guide groove (11) into any limiting groove (12) corresponding to any mark (17).

5. The cable reel for aerospace cables according to claim 1, characterized in that: The protrusion (13) and the guide groove (11) are clearance-matched, and the protrusion (13) and the limiting groove (12) are transitionally matched.

6. The cable reel for aerospace cables according to claim 1, characterized in that: A transition section (14) is provided at one end of the outer shaft (8) engaged with the inner shaft (7); the transition section (14) comprises an arc portion; and the radius of the transition section (14) gradually decreases in a direction from the outer shaft (8) to the inner shaft (7).

7. The cable reel for aerospace cables according to claim 1, characterized in that: The first outer reel (1) and the second outer reel (2) are respectively provided with a card slot (5) and a card block (6), and a card block (6) is provided between any two card slots (5); The plurality of cable reels are in a stacked state, wherein a card slot (5) of one cable reel and a card block (6) of another cable reel are interlocked in the stacked state.

8. The cable reel for aerospace cables according to claim 1, characterized in that: A first isolation disk (15) is further provided between the first inner reel (3) and the outer shaft (8), and the first isolation disk (15) is fixed on the first inner reel (3); A second isolation disk (16) is also provided between the second inner reel (4) and the inner shaft (7), and the second isolation disk (16) is fixed on the second inner reel (4).

9. The cable reel for aerospace cables according to claim 8, characterized in that: Holes (9) are provided on both the first isolation disk (15) and the second isolation disk (16), and the holes (9) are distributed along the circumference of the first isolation disk (15) and the second isolation disk (16).

10. The cable reel for aerospace cables according to claim 1, characterized in that: The first outer reel (1) is connected to the outer ring of the first central bearing (10), and the first inner reel (3) is connected to the inner ring of the first central bearing (10); The second outer reel (2) is connected to the outer ring of the second center bearing, and the second inner reel (4) is connected to the inner ring of the second center bearing.

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