Cable take-up and pay-off device
By adopting a double rolling shaft structure and a conductive device in the cable winding and unwinding device, the problem of inconvenient cable length adjustment is solved, and convenient cable adjustment and wear protection are achieved during the construction process.
Patent Information
- Application Number
- CN202520034346.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Existing cable winding devices are inconvenient to adjust cable length during construction, leading to friction and wear between the cable and hard objects on the ground, which poses a construction hazard.
It adopts a double rolling shaft structure with a connecting device in the middle, including a first electric slip ring, a second electric slip ring and a connecting element. The first section of the cable and the second section of the cable are connected through the connecting device to ensure that the cable is always connected during the cable winding and unwinding process, and to prevent the cable from being placed on the ground.
It enables convenient adjustment of cable length, avoids friction and wear between the cable and the ground, and improves the convenience and safety of construction.
Smart Images
Figure CN223737429U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of power equipment technology, and in particular to a cable winding and unwinding device. Background Technology
[0002] During the erection of steel towers, electrical equipment is required, which necessitates the connection of power and control cables. In actual construction, the cable length varies with the tower's height. As the tower rises during erection, the cable needs to be easily adjustable in length during construction. However, existing cable reeling devices only have a single roller for both reeling and unloading. This means that during construction, the cable must be completely pulled from the roller, with one end fixed to the tower and the other to the generator (or control box). The cable between these ends is left on the ground, where it is dragged and prone to friction against hard surfaces, causing wear and tear and creating significant inconvenience and potential hazards for future construction. Therefore, providing a cable reeling and unloading device to address the problem of inconvenient cable length adjustment during construction is essential. Utility Model Content
[0003] One objective of this application is to provide a cable winding and unwinding device to solve the problem of inconvenient cable length adjustment during the laying process.
[0004] To achieve the above objectives, the technical solution adopted in this application is as follows: the cable winding and unwinding device includes: a first rolling shaft, a second rolling shaft, and a connecting device. A section of cable is wound on the first rolling shaft; a second section of cable is wound on the second rolling shaft; the connecting device is located between the first rolling shaft and the second rolling shaft, and the first section of cable and the second section of cable are connected through the connecting device.
[0005] As a preferred embodiment, the conducting device includes: a first electric slip ring, a second electric slip ring, and a conducting member. The first electric slip ring is fixed to the side of the first rolling shaft near the conducting device and is connected to one end of the cable. The second electric slip ring is fixed to the side of the second rolling shaft near the conducting device and is connected to the second end of the cable. The conducting member is disposed between the first electric slip ring and the second electric slip ring, and one side of the conducting member is in contact with the first electric slip ring, and the other side of the conducting member is in contact with the second electric slip ring.
[0006] As another preferred embodiment, the conductive element includes: conductive rings disposed on both sides of the conductive element; wherein, the first slip ring is provided with a first terminal, the second slip ring is provided with a second terminal, and the first terminal and the second terminal are connected through the conductive rings.
[0007] In a further preferred embodiment, the conductive element also includes an insulating ring disposed between the conductive rings.
[0008] Further optimization involves ensuring that the height of the insulating ring is greater than the height of the conductive ring.
[0009] In a further preferred embodiment, a first elastic element is provided between the first slip ring and the first terminal, and a second elastic element is provided between the second slip ring and the second terminal.
[0010] Further preferably, there are multiple first terminals arranged sequentially along the extension direction of the diameter of the first slip ring, and there is a gap between the first terminals; there are multiple second terminals arranged sequentially along the extension direction of the diameter of the second slip ring, and there is a gap between the second terminals.
[0011] Further preferably, there are multiple first terminals, a first slip ring has a first center, the first terminals are arranged around the first center, the distances between the first terminals and the first center are not equal, and there is an angle between the lines connecting the first terminals and the first center; there are multiple second terminals, a second slip ring has a second center, the second terminals are arranged around the second center, the distances between the second terminals and the second center are not equal, and there is an angle between the lines connecting the second terminals and the second center.
[0012] Further preferably, the first rolling shaft is provided with a first wire-passing groove, and the end of a section of the cable passes through the first wire-passing groove so that the section of the cable is connected to the first electric slip ring; the second rolling shaft is provided with a second wire-passing groove, and the end of a second section of the cable passes through the second wire-passing groove so that the second section of the cable is connected to the second electric slip ring.
[0013] Further preferably, the central axis of the first rolling shaft, the central axis of the second rolling shaft, and the central axis of the conducting device coincide.
[0014] Compared with the prior art, the beneficial effects of this application are as follows:
[0015] A connecting device is installed between the first and second rolling shafts, allowing cable segment one and cable segment two to be connected. Both cable segment one and cable segment two contain multiple cable cores, which are connected one-to-one through the connecting device, thus enabling them to form a single cable and determining the cable's usability. Furthermore, during the cable winding or unwinding process, cable segment one and cable segment two remain connected, with the first and second rolling shafts unwinding simultaneously. This allows operators to adjust the cable length as needed, making operation more convenient and preventing the cable from rubbing against hard objects on the ground and causing wear. Attached Figure Description
[0016] Figure 1 A first-view structural schematic diagram of a cable winding and unwinding device;
[0017] Figure 2 A schematic diagram of the cable take-up and unwinding device from a second perspective;
[0018] Figure 3 This is a schematic diagram of the conductive component;
[0019] Figure 4 A third-view structural schematic diagram of a cable take-up and unwinding device;
[0020] Figure 5 for Figure 4 A cross-sectional view along the AA direction;
[0021] Figure 6 for Figure 5 A magnified view of region B in the middle;
[0022] Figure 7 This is a partial schematic diagram from a first-view perspective of the first electric slip ring;
[0023] Figure 8 This is a partial schematic diagram of the first electric slip ring from a second perspective;
[0024] Figure 9 This is a partial schematic diagram of the first electric slip ring;
[0025] Figure 10 A schematic diagram illustrating the environment in which a cable winding and unwinding device is used.
[0026] In the diagram: 100, cable take-up and unwinding device; 110, first rolling shaft; 111, first wire threading groove; 112, first unwinding groove; 120, second rolling shaft; 121, second wire threading groove; 130, conductive device; 131, first slip ring; 131a, first terminal; 131b, first elastic element; 132, second slip ring; 132a, second terminal; 132b, second elastic element; 133, conductive element; 133a, conductive ring; 133b, insulating ring; 140, bracket. Detailed Implementation
[0027] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0028] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.
[0029] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
[0030] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.
[0031] This application provides a cable winding and unwinding device 100, which includes a first rolling shaft 110, a second rolling shaft 120, and a connecting device 130. A section of cable is wound on the first rolling shaft 110, and a second section of cable is wound on the second rolling shaft 120. The connecting device 130 is located between the first rolling shaft 110 and the second rolling shaft 120, and the first section of cable and the second section of cable are connected through the connecting device 130.
[0032] Specifically, as shown in the appendix Figure 1 As shown, this application provides a cable winding and unwinding device 100, which includes a first rolling shaft 110, a second rolling shaft 120, and a conductive device 130 disposed between the first rolling shaft 110 and the second rolling shaft 120. A section of cable is wound on the first rolling shaft 110, and a second section of cable is wound on the second rolling shaft 120. The end of the first section of cable and the end of the second section of cable are connected to each other through the conductive device 130, thereby determining the availability of the first and second sections of cable. During the winding or unwinding process of the cable winding and unwinding device 100, the first and second sections of cable are always connected. The first rolling shaft 110 and the second rolling shaft 120 unwind cable simultaneously, which makes it convenient for operators to adjust the length of the cable as needed, making the operation more convenient and avoiding the cable from being placed on the ground and rubbing against hard objects on the ground, thus preventing wear.
[0033] Additional explanation: Both cable section one and cable section two are equipped with multiple cable cores. The multiple cable cores in cable section one and cable section two are connected one-to-one through the conduction device 130, so that they can be connected one-to-one and form a single cable.
[0034] Preferably, the cable winding and unwinding device 100 provided in this application can be provided in multiple ways. The first rolling shaft 110 and the second rolling shaft 120 are only for illustrating the technical solution of this application and are not a limitation on the number of rolling shafts. At the same time, the first rolling shaft 110 and the second rolling shaft 120 can be rolling shafts of the same size or rolling shafts of different sizes, which is not limited here.
[0035] Supplementary explanation, as attached Figure 10 As shown, the cable winding and unwinding device 100 is suitable for use in the construction environment of power tower erection. During the erection process, the height of the power tower continuously increases. The first rolling shaft 110 and the second rolling shaft 120 can simultaneously unwind the cable. The length of the cable changes with the height of the power tower, allowing operators to adjust the cable length according to actual needs. This also avoids placing the first and second sections of the cable on the ground, preventing the cable from contacting hard objects on the ground and thus avoiding cable wear.
[0036] For example, the conducting device 130 includes: a first slip ring 131, a second slip ring 132, and a conducting member 133. The first slip ring 131 is fixed to the side of the first rolling shaft 110 near the conducting device 130, and the first slip ring 131 is connected to one end of a cable. The second slip ring 132 is fixed to the side of the second rolling shaft 120 near the conducting device 130, and the second slip ring 132 is connected to the other end of the cable. The conducting member 133 is disposed between the first slip ring 131 and the second slip ring 132, and one side of the conducting member 133 is in contact with the first slip ring 131, and the other side of the conducting member 133 is in contact with the second slip ring 132.
[0037] For example, see attached. Figure 5 and attached Figure 6 As shown, the conducting device 130 includes a first electric slip ring 131 and a second electric slip ring 132. During the cable take-up and release process, the first rolling shaft 110 and the second rolling shaft 120 rotate around their own axes to complete the take-up and release. Therefore, the first cable segment and the second cable segment are respectively connected to the first electric slip ring 131 and the second electric slip ring 132 to prevent the first cable segment and the second cable segment from affecting the rolling of the first rolling shaft 110 and the second rolling shaft 120, so that the cable take-up and release of the cable take-up and release device 100 is smoother.
[0038] Specifically, the conductive element 133 includes a conductive ring 133a, which is disposed on both sides of the conductive element 133; wherein, the first slip ring 131 is provided with a first terminal 131a, and the second slip ring 132 is provided with a second terminal 132a, and the first terminal 131a and the second terminal 132a are connected through the conductive ring 133a.
[0039] Specifically, as shown in the appendix Figure 3 As shown, the conductive element 133 is provided with a conductive ring 133a, which is laid on the surface of the conductive element 133, and the conductive element 133 and the conductive ring 133a are arranged concentrically; as shown in the attached figure. Figure 6 As shown, the first terminal 131a extends into the conductive member 133 and contacts the conductive ring 133a, so that the first section of the cable is connected to the conductive member 133. The second terminal 132a contacts the conductive ring 133a, so that the second section of the cable is connected to the conductive member 133, thereby making the first section of the cable connected to the second section of the cable. The structure of the connecting device 130 is relatively simple and the assembly is relatively convenient.
[0040] In addition, when the rolling speeds of the first rolling shaft 110 and the second rolling shaft 120 are different during the winding or unwinding process, it will not affect the conduction between the first section and the second section of the cable, making the cable winding and unwinding device 100 more practical.
[0041] Specifically, the conductive element 133 also includes an insulating ring 133b, which is disposed between the conductive rings 133a.
[0042] Specifically, as shown in the appendix Figure 3 As shown, the insulating ring 133b is disposed between the conductive rings 133a. The cable is generally a multi-core cable or a single-core cable. When the first and second sections of the cable are multi-core cables, each core inside the multi-core cable needs to be in communication with the conductive ring 133a. Therefore, the insulating ring 133b is disposed between the conductive rings 133a to prevent the conductive rings 133a from contacting and conducting with each other.
[0043] To clarify, the number of conductive rings 133a is adapted to the number of conductors inside the cable. For example, if the cable is a three-core cable, the number of conductive rings 133a can be greater than or equal to 3. There is no limit to the number of conductive rings 133a here.
[0044] For example, the height of the insulating ring 133b is greater than the height of the conductive ring 133a.
[0045] For example, see attached. Figure 3As shown, the height of the insulating ring 133b is greater than the height of the conductive ring 133a. On the one hand, the insulating ring 133b can prevent the conductive rings 133a from contacting each other, thus playing an isolating role; on the other hand, the insulating ring 133b can prevent the first terminal 131a from separating from the conductive ring 133a, as shown in the attached figure. Figure 6 As shown, the first terminal 131a extends between the insulating rings 133b, thereby making contact and conducting with the conductive ring 133a. The first slip ring 131 is fixed on the first rolling shaft 110. During the rotation of the first rolling shaft 110 around its own axis, it drives the first slip ring 131 to rotate, so that the first terminal 131a can always make contact and conduct with the conductive ring 133a under the restriction of the insulating ring 133b, thereby achieving that the first section of the cable and the second section of the cable are always conducting during the winding or unwinding process.
[0046] Preferably, the height of the conductive ring 133a is a, the height of the insulating ring 133b is b, a < b, and there is a mathematical relationship between a and b, b = Na, where N > 1, such as N being 1.3.
[0047] In addition, the second terminal 132a adopts the same conduction method as the first terminal 131a. The second terminal 132a extends into the insulating ring 133b and then contacts and conducts with the conductive ring 133a. The insulating ring 133b can restrict the second terminal 132a and prevent the second terminal 132a from separating from the conductive ring 133a, thus ensuring the reliability of the conduction between the first and second sections of the cable.
[0048] As a supplementary note, the number of insulating rings 133b is matched with the number of conductive rings 133a, and no limitation is made here.
[0049] For example, a first elastic element 131b is provided between the first slip ring 131 and the first terminal 131a, and a second elastic element 132b is provided between the second slip ring 132 and the second terminal 132a.
[0050] For example, see attached. Figure 6 As shown, a first elastic element 131b is provided between the first slip ring 131 and the first terminal 131a. The first elastic element 131b can push the first terminal 131a and the conductive ring 133a to contact each other, so as to prevent the first terminal 131a and the conductive ring 133a from separating from each other during the winding or unwinding process. The first elastic element 131b and the insulating ring 133b cooperate with each other to ensure the reliability of the contact and conduction between the first terminal 131a and the conductive ring 133a.
[0051] Furthermore, during the take-up or undoing process, the first rolling shaft 110 drives the first slip ring 131 to rotate, causing the first terminal 131a to rotate. During this rotation, friction exists between the end of the first terminal 131a that contacts the conductive ring 133a, which can easily lead to insufficient smoothness of the rotation of the first rolling shaft 110 and produce abnormal noise. Therefore, a first elastic element 131b is provided between the first slip ring 131 and the first terminal 131a. During rotation, the first elastic element 131b can undergo slight deformation under force, reducing friction between the first terminal 131a and the conductive ring 133a while ensuring contact and conductivity. This improves the service life of the first terminal 131a, makes the rotation of the first rolling shaft 110 smoother, and reduces abnormal noise during take-up or undoing.
[0052] In addition, the second elastic element 132b has the same function as the first elastic element 131b. Both reduce the friction between the second terminal 132a and the conductive ring 133a while ensuring that the second terminal 132a and the conductive ring 133a are in contact and conducting. This improves the service life of the second terminal 132a, thereby ensuring smoother rotation of the second rolling shaft 120 and reducing abnormal noise.
[0053] Specifically, there are multiple first terminals 131a, which are arranged sequentially along the diameter of the first slip ring 131, and there are gaps between the first terminals 131a; there are multiple second terminals 132a, which are arranged sequentially along the diameter of the second slip ring 132, and there are gaps between the second terminals 132a.
[0054] Specifically, as shown in the appendix Figure 7 As shown, the first slip ring 131 has multiple first terminals 131a on the side near the conducting device 130, as shown in the attached diagram. Figure 8 As shown, the first terminals 131a are arranged sequentially along the extension direction of the diameter of the first slip ring 131 to prevent the first terminals 131a from contacting each other during the rotation of the first slip ring 131a, so that the conduction signal obtained by the operator is more accurate. There is a gap between the first terminals 131a so that the insulating ring 133b can be inserted into the gap to isolate the first terminals 131a and prevent the first terminals 131a from contacting each other.
[0055] As a supplementary note, the number of first terminals 131a is related to the number of conductors inside the cable. No limit is made on the number of first terminals 131a here. For example, if the cable is a three-core cable, the number of first terminals 131a can be greater than or equal to 3.
[0056] As a supplementary explanation, the second slip ring 132 is provided with multiple second terminals 132a. The arrangement of the second terminals 132a is the same as that of the first terminals 131a. The beneficial effects produced by the arrangement of the second terminals 132a are the same as those produced by the arrangement of the first terminals 132a, and will not be repeated here.
[0057] Specifically, there are multiple first terminals 131a, a first slip ring 131 has a first center, the first terminals 131a are arranged around the first center, the distances between the first terminals 131a and the first center are not equal, and there is an angle between the lines connecting the first terminals 131a and the first center; there are multiple second terminals 132a, a second slip ring 132 has a second center, the second terminals 132a are arranged around the second center, the distances between the second terminals 132a and the second center are not equal, and there is an angle between the lines connecting the second terminals 132a and the second center.
[0058] Specifically, as shown in the appendix Figure 9 As shown, the first slip ring 131 is provided with a plurality of first terminals 131a. The first terminals 131a are arranged around the first center of the first slip ring 131, and the distances between the first terminals 131a and the first center are not equal, so that the first terminals 131a can contact different conductive rings 133a, thereby preventing the wires inside the cable section from contacting each other and conducting. At the same time, there is an angle between the line connecting the first terminals 131a and the first center, which increases the distance between the first terminals 131a and prevents the first terminals 131a from contacting each other, thereby preventing the wires inside the cable section from contacting each other and conducting.
[0059] Preferably, the angle between the first terminal 131a and the line connecting the first center can be any angle, and is not limited here, but the angle is preferably 90°.
[0060] As a supplementary explanation, the second slip ring 132 is provided with multiple second terminals 132a. The arrangement of the second terminals 132a is the same as that of the first terminals 131a. The beneficial effects produced by the arrangement of the second terminals 132a are the same as those produced by the arrangement of the first terminals 132a, and will not be repeated here.
[0061] Additional explanation: The number of conductors inside section one of the cable is the same as the number of conductors inside section two of the cable. The conductors inside section one and two of the cable correspond one-to-one and are interconnected through conductor 133.
[0062] For example, a common high-voltage cable is a three-core cable, containing three conductors: phase A, phase B, and phase C. Therefore, if both cable section one and cable section two are three-core cables, the phases A, B, and C inside cable section one must correspond one-to-one with the phases A, B, and C inside cable section two to ensure proper contact and conductivity.
[0063] For example, the first rolling shaft 110 is provided with a first wire-passing groove 111, and the end of a section of the cable passes through the first wire-passing groove 111 so that the section of the cable is connected to the first electric slip ring 131; the second rolling shaft 120 is provided with a second wire-passing groove 121, and the end of a second section of the cable passes through the second wire-passing groove 121 so that the second section of the cable is connected to the second electric slip ring 132.
[0064] For example, see attached. Figure 1 and attached Figure 2 As shown, the first rolling shaft 110 is provided with a first wire-passing groove 111, and the second rolling shaft 120 is provided with a second wire-passing groove 121. The end of a section of cable passes through the first wire-passing groove 111 and is connected to the first slip ring 131, so that the wires inside the section of cable are connected to the first terminal 131a respectively. This prevents the section of cable from interfering with the first rolling shaft 110 during the cable winding or unwinding process, ensuring the stability of the first rolling shaft 110 during rotation and making the structure of the cable winding and unwinding device 100 more reasonable.
[0065] The ends of the two cable segments pass through the second wire groove 121 and are connected to the second slip ring 132, so that the wires inside the two cable segments are connected to the second terminal 132a respectively. The beneficial effects of the second wire groove 121 are the same as those of the first wire groove 111, and will not be described again here.
[0066] Supplementary explanation, as attached Figure 1 As shown, the first rolling shaft 110 is also provided with a first cable feeding groove 112. The other end of a cable segment passes through the first cable feeding groove 112. During the cable feeding process, this prevents the cable segment from being dragged on the ground and also avoids the cable segment from being scratched by hard objects, making the structure of the cable feeding and take-up device 100 more reasonable. The second rolling shaft 120 is also provided with a second cable feeding groove. The beneficial effects of the second cable feeding groove are the same as those of the first cable feeding groove 112, and will not be described again here.
[0067] Specifically, the central axis of the first rolling shaft 110, the central axis of the second rolling shaft 120, and the central axis of the connecting device 130 coincide.
[0068] Specifically, as shown in the appendix Figure 5As shown, the central axis of the first rolling shaft 110, the central axis of the second rolling shaft 120, and the central axis of the connecting device 130 coincide. During the winding or unwinding process, the wire winding and unwinding device 100 is prevented from shaking, thereby avoiding abnormal noise from the wire winding and unwinding device 100 and making the winding or unwinding process more stable.
[0069] As attached Figure 5 As shown, the conductor 133 is fixed on the bracket 140, so that the central axis of the conductor 133 coincides with the central axis of the first rolling shaft 110. This avoids the uneven force on the first terminal 131a and the second terminal 132a when they come into contact with the insulating ring 133b during rotation, thus preventing them from breaking. This improves the stability of the wire take-up and unwinding device 100.
[0070] In addition, during the assembly of the wire take-up and untake-down device 100, it is easier for the assemblers to determine the installation positions of the first rolling shaft 110, the second rolling shaft 120 and the conducting device 130, thus reducing the difficulty of assembly.
[0071] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.
Claims
1. A cable reeling device, characterized by The cable pay-off device comprises: a first rolling shaft on which a first cable section is wound; a second rolling shaft on which a second cable section is wound; a lead-through device arranged between the first rolling shaft and the second rolling shaft, and the first cable section and the second cable section are led through the lead-through device.
2. A cable reeling device according to claim 1, wherein The lead-through device comprises: a first electric slip ring fixed on one side of the first rolling shaft close to the lead-through device, and the first electric slip ring is connected with the first cable section; a second electric slip ring fixed on one side of the second rolling shaft close to the lead-through device, and the second electric slip ring is connected with the second cable section; a lead-through member arranged between the first electric slip ring and the second electric slip ring, and one side of the lead-through member is in contact with the first electric slip ring, and the other side of the lead-through member is in contact with the second electric slip ring.
3. A cable reeling device according to claim 2, wherein The lead-through member comprises: a conductive ring arranged on both sides of the lead-through member; wherein the first electric slip ring is provided with a first terminal post, the second electric slip ring is provided with a second terminal post, and the first terminal post and the second terminal post are communicated through the conductive ring.
4. A cable reeling device according to claim 3, wherein The lead-through member further comprises: an insulating ring arranged between the conductive rings.
5. A cable reeling device as claimed in claim 4, characterised in that, The height of the insulating ring is greater than the height of the conductive ring.
6. A cable reeling device as claimed in claim 3, characterised in that, A first elastic member is arranged between the first electric slip ring and the first terminal post, and a second elastic member is arranged between the second electric slip ring and the second terminal post.
7. A cable reeling device according to claim 6, wherein The first terminal post is provided with a plurality of first terminal posts, which are arranged in sequence along the extension direction of the diameter of the first electric slip ring, and there is a gap between the first terminal posts; The second terminal post is provided with a plurality of second terminal posts, which are arranged in sequence along the extension direction of the diameter of the second electric slip ring, and there is a gap between the second terminal posts.
8. A cable reeling device as claimed in claim 6, characterised in that, The first terminal post is provided with a plurality of first terminal posts, the first electric slip ring has a first center, the first terminal posts are arranged around the first center, the distances between the first terminal posts and the first center are not equal, and there is an included angle between the lines connecting the first terminal posts and the first center; The second terminal post is provided with a plurality of second terminal posts, the second electric slip ring has a second center, the second terminal posts are arranged around the second center, the distances between the second terminal posts and the second center are not equal, and there is an included angle between the lines connecting the second terminal posts and the second center.
9. A cable reeling device according to any one of claims 2 to 8, wherein, The first rolling shaft is provided with a first threading groove, and the end of the first cable section passes through the first threading groove, so that the first cable section is connected with the first electric slip ring; The second rolling shaft is provided with a second threading groove, and the end of the second cable section passes through the second threading groove, so that the second cable section is connected with the second electric slip ring.
10. The cable reeling device of claim 2, wherein, The central axis of the first rolling shaft, the central axis of the second rolling shaft, and the central axis of the lead-through device coincide.