A mine cable

Abstract

The utility model discloses a kind of mining cables, belong to cable field, comprising: the anti-torsion frame with passageway;The anti-torsion strip with through-hole, anti-torsion strip is located in anti-torsion frame;Several fan-shaped power line cores and several circular control line cores are in contact with anti-torsion frame;The insulating layer wrapped outside several fan-shaped power line cores and several circular control line cores;Inner sheath, braided layer and outer sheath are wrapped outside insulating layer in turn.The anti-torsion frame comprises: the main part with passageway;Several connecting arms, the one end of connecting arm is connected with main part;Cavity is formed between adjacent connecting arms, and fan-shaped power line core is located in cavity;Several supports, support and the other end of connecting arm are connected, and support and circular control line core are in contact.The connection mode between main part, connecting arm and support is integrally-formed connection.The technical effect of the utility model is that it not only has small outer diameter, but also has good torsion resistance.

Description

Technical Field

[0001] This utility model relates to cables, and more particularly to a mining cable. Background Technology

[0002] Mining cables are a type of special cable designed specifically for mining environments (such as coal mines and metal mines), enabling them to operate stably under complex and harsh conditions underground.

[0003] Mining cables typically include power and control cores, which can lead to a larger outer diameter. Additionally, their poor torsional resistance limits their application. Utility Model Content

[0004] Purpose of the utility model: The purpose of this utility model is to provide a mining cable that not only has a small outer diameter but also good torsional resistance.

[0005] Technical solution:

[0006] A mining cable, comprising:

[0007] Torsion-resistant frame with channels;

[0008] An anti-torsion strip with through holes is located within the anti-torsion frame;

[0009] Several fan-shaped power cores and several circular control cores that all abut against the anti-torsion frame;

[0010] An isolation layer encasing the aforementioned fan-shaped power cores and the aforementioned circular control cores;

[0011] The inner sheath, the braided layer, and the outer sheath are sequentially wrapped around the isolation layer.

[0012] Optionally, the anti-torsion frame includes:

[0013] A main body having the aforementioned channel;

[0014] Several connecting arms, one end of which is connected to the main body;

[0015] A cavity is formed between adjacent connecting arms, and the fan-shaped power wire core is located within the cavity;

[0016] Several brackets are connected to the other end of the connecting arm, and the brackets abut against the circular control wire core.

[0017] Optionally, the connection between the main body, the connecting arm, and the bracket is an integral molding connection.

[0018] Optionally, the inner sheath is provided with a plurality of protrusions at intervals, the protrusions having metal wires inside, and the braided layer wrapping around the protrusions.

[0019] Optionally, the connection between the inner sheath and the protrusion is an integrally formed connection.

[0020] Optionally, the sector-shaped power conductor includes:

[0021] First inner conductor;

[0022] An insulating component is wrapped around the first inner conductor, and the insulating component abuts against both the anti-torsion frame and the insulating layer.

[0023] Optionally, the insulating component includes a conductor shielding layer, a first insulating layer, an insulating shielding layer, and a metal shielding layer sequentially wrapped around the first inner conductor, wherein the metal shielding layer abuts against the anti-torsion frame and the isolation layer.

[0024] Optionally, the circular control wire core includes:

[0025] Second inner conductor;

[0026] A second insulating layer is wrapped around the second inner conductor, and the second insulating layer abuts against both the anti-torsion frame and the isolation layer.

[0027] Beneficial effects:

[0028] (1) The anti-torsion frame is used to support the fan-shaped power core and the circular control core, and the anti-torsion strip is used to support the anti-torsion frame. When the mining cable of this scheme is twisted, the channel of the anti-torsion frame and the through hole of the anti-torsion strip are deformed, which is convenient to absorb the deformation from the anti-torsion frame and the anti-torsion strip, prevent the inner sheath and the outer sheath from bulging, and has good anti-torsion performance.

[0029] (2) The fan-shaped power core is used to transmit electrical energy. The fan shape makes it compact and has a high space utilization rate, which makes it easier to make the outer diameter of the mining cable in this scheme small. Attached Figure Description

[0030] Figure 1 This is a structural diagram of a mining cable according to Embodiment 1 of this utility model;

[0031] Figure 2 This is a structural diagram of the anti-torsion frame of Embodiment 1 of this utility model;

[0032] Figure 3 This is a structural diagram of the fan-shaped power core of Embodiment 1 of this utility model;

[0033] In the diagram: 1. Anti-torsion frame; 11. Main body; 111. Channel; 12. Connecting arm; 13. Support; 14. Cavity; 2. Anti-torsion strip; 21. Through hole; 3. Fan-shaped power core; 31. First inner conductor; 32. Insulation component; 321. Conductor shielding layer; 322. First insulation layer; 323. Insulation shielding layer; 324. Metal shielding layer; 4. Circular control core; 41. Second inner conductor; 42. Second insulation layer; 5. Isolation layer; 6. Inner sheath; 61. Protrusion; 62. Metal wire; 7. Braided layer; 8. Outer sheath. Detailed Implementation

[0034] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the utility model. Furthermore, it should be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. The terms "first," "second," etc., used in this utility model are provided for the convenience of describing the technical solution of this utility model and have no specific limiting effect; they are all general terms and do not constitute a limitation on the technical solution of this utility model. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the utility model 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, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not contradict or conflict, all of which are within the scope of protection claimed by this utility model.

[0036] Example 1

[0037] like Figures 1-2 This embodiment provides a mining cable, including: an anti-torsion frame 1 with a channel 111; an anti-torsion strip 2 with a through hole 21, the anti-torsion strip 2 being located inside the anti-torsion frame 1; a plurality of fan-shaped power cores 3 and a plurality of circular control cores 4, all in contact with the anti-torsion frame 1; an isolation layer 5 wrapped around the plurality of fan-shaped power cores 3 and the plurality of circular control cores 4; and an inner sheath 6, a braided layer 7, and an outer sheath 8 sequentially wrapped around the isolation layer 5.

[0038] Specifically, the anti-torsion frame 1 supports the fan-shaped power core 3 and the circular control core 4, while the anti-torsion strip 2 supports the anti-torsion frame 1. When the mining cable of this solution twists, the channel 111 of the anti-torsion frame 1 and the through hole 21 of the anti-torsion strip 2 both deform, facilitating the absorption of deformation from the anti-torsion frame 1 and the anti-torsion strip 2, preventing bulging of the inner sheath 6 and the outer sheath 8, and exhibiting good anti-torsion performance. The materials of the anti-torsion frame 1 and the anti-torsion strip 2 can be aramid fiber, polyester fiber, etc. The fan-shaped power core 3 is used to transmit electrical energy. The fan shape facilitates compactness and high space utilization, thus making the mining cable of this solution more compact. The cable has a small outer diameter; the circular control core 4 is used to transmit control signals, monitoring signals, etc.; the isolation layer 5 is used to wrap several fan-shaped power cores 3 and several circular control cores 4. The material of the isolation layer 5 can be semi-conductive polymer, aluminum-plastic composite tape, etc., and it also facilitates electromagnetic shielding and uniform electric field distribution; the inner sheath 6 and the outer sheath 8 are used for double protection, which makes the mining cable of this solution adaptable to complex and harsh working environments. The material of both the inner sheath 6 and the outer sheath 8 can be rubber; the braided layer 7 is used to further increase the torsional resistance. The material of the braided layer 7 can be polyester fiber, aramid fiber, etc.

[0039] Furthermore, such as Figure 2 The anti-torsion frame 1 includes: a main body 11 having a channel 111; a plurality of connecting arms 12, one end of which is connected to the main body 11; a cavity 14 formed between adjacent connecting arms 12, with a fan-shaped power core 3 located in the cavity 14; and a plurality of supports 13, the other end of which is connected to the connecting arms 12, and the supports 13 abutting against the circular control core 4.

[0040] Specifically, the number of connecting arms 12 is not limited, but it is necessary to ensure that the number of connecting arms 12 is equal to the number of fan-shaped power cores 3.

[0041] Furthermore, such as Figure 2 The main body 11, the connecting arm 12 and the bracket 13 are connected by an integral molding.

[0042] Specifically, the one-piece molding connection facilitates the good overall integrity of the anti-torsion frame 1.

[0043] Furthermore, such as Figure 1The inner sheath 6 has several protrusions 61 spaced apart, each protrusion 61 containing a metal wire 62, and the braided layer 7 wraps around the protrusions 61.

[0044] Specifically, the protrusion 61 is used to accommodate the metal wire 62; the metal wire 62 is used to increase the torsional and tensile properties, and the material of the metal wire 62 can be steel or the like.

[0045] Furthermore, such as Figure 1 The connection between the inner sheath 6 and the protrusion 61 is a one-piece molded connection.

[0046] Specifically, the one-piece molding connection facilitates better overall integrity.

[0047] Furthermore, such as Figure 3 The fan-shaped power core 3 includes: a first inner conductor 31; an insulation component 32 wrapped around the first inner conductor 31, the insulation component 32 being in contact with the anti-torsion frame 1 and the isolation layer 5.

[0048] Specifically, the first inner conductor 31 is used to transmit electrical energy, and the material of the first inner conductor 31 can be copper, aluminum, etc.; the insulating component 32 is used for insulation.

[0049] Furthermore, such as Figure 3 The insulating component 32 includes a conductor shielding layer 321, a first insulating layer 322, an insulating shielding layer 323, and a metal shielding layer 324 that are sequentially wrapped around the first inner conductor 31. The metal shielding layer 324 is in contact with the anti-torsion frame 1 and the isolation layer 5.

[0050] Specifically, both the conductor shielding layer 321 and the insulating shielding layer 323 are used to homogenize the electric field and provide insulation. The materials of the conductor shielding layer 321 and the insulating shielding layer 323 can be semi-conductive cross-linked polyethylene, semi-conductive ethylene propylene rubber, etc.; the first insulating layer 322 is used for insulation, and the material of the first insulating layer 322 can be cross-linked polyethylene, polyvinyl chloride, etc.; the metal shielding layer 324 is used as a ground wire, and the material of the metal shielding layer 324 can be copper, aluminum, etc.

[0051] Furthermore, such as Figure 1 The circular control core 4 includes: a second inner conductor 41; a second insulation layer 42 wrapped around the second inner conductor 41, the second insulation layer 42 being in contact with the anti-torsion frame 1 and the isolation layer 5.

[0052] Specifically, the second inner conductor 41 is used to transmit control signals, monitoring signals, etc., and the material of the second inner conductor 41 can be copper, aluminum, etc.; the second insulating layer 42 is used for insulation, and the material of the second insulating layer 42 can be cross-linked polyethylene, polyvinyl chloride, etc.

[0053] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A mining cable, characterized in that, include: A torsion-resistant frame (1) with a channel (111); An anti-torsion strip (2) having a through hole (21) is located inside the anti-torsion frame (1); Several fan-shaped power cores (3) and several circular control cores (4) that are in contact with the anti-torsion frame (1); An isolation layer (5) is wrapped around several of the fan-shaped power cores (3) and several of the circular control cores (4); The inner sheath (6), the braided layer (7), and the outer sheath (8) are sequentially wrapped around the isolation layer (5).

2. The mining cable according to claim 1, characterized in that, The anti-torsion frame (1) includes: The main body (11) having the channel (111); Several connecting arms (12), one end of which is connected to the main body (11); A cavity (14) is formed between adjacent connecting arms (12), and the fan-shaped power wire core (3) is located within the cavity (14); Several brackets (13) are connected to the other end of the connecting arm (12), and the brackets (13) abut against the circular control wire core (4).

3. A mining cable according to claim 2, characterized in that, The connection between the main body (11), the connecting arm (12) and the bracket (13) is an integral molding connection.

4. A mining cable according to any one of claims 1-3, characterized in that, The inner sheath (6) is provided with a plurality of protrusions (61) spaced apart, each protrusion (61) containing a metal wire (62), and the braided layer (7) wraps around the protrusions (61).

5. A mining cable according to claim 4, characterized in that, The inner sheath (6) and the protrusion (61) are connected by an integral molding.

6. A mining cable according to any one of claims 1-3, characterized in that, The sector-shaped power core (3) includes: First inner conductor (31); An insulating component (32) is wrapped around the first inner conductor (31), and the insulating component (32) abuts against the anti-torsion frame (1) and the isolation layer (5).

7. A mining cable according to claim 6, characterized in that, The insulating component (32) includes a conductor shielding layer (321), a first insulating layer (322), an insulating shielding layer (323), and a metal shielding layer (324) that are sequentially wrapped around the first inner conductor (31). The metal shielding layer (324) is in contact with the anti-torsion frame (1) and the isolation layer (5).

8. A mining cable according to any one of claims 1-3, characterized in that, The circular control wire core (4) includes: Second inner conductor (41); The second insulating layer (42) is wrapped around the second inner conductor (41), and the second insulating layer (42) is in contact with the anti-torsion frame (1) and the isolation layer (5).

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