Multi-wire-harness mine compression-resistant cable

Abstract

The invention provides a multi-wire-harness mine compression-resistant cable. The multi-wire-harness mine compression-resistant cable comprises a central sleeve, a central wire harness, a fan-shaped sleeve, a side wire harness and a protective layer. According to the multi-wire-harness mine compression-resistant cable provided by the invention, the central sleeve is arranged, the central wire harness is mounted in the central sleeve, and the insulating layer is arranged between the central wire harness and the interior of the central sleeve. A plurality of fan-shaped sleeves are installed on the outer side of the center sleeve, the fan-shaped sleeves are arranged on the outer side of the center sleeve in a surrounding mode, positioning wing plates and containing grooves used for containing the positioning wing plates are arranged on every two adjacent fan-shaped sleeves respectively, and when the fan-shaped sleeves are spliced together, the positioning wing plates can be connected together end to end through the positioning wing plates. And the multiple fan-shaped sleeves are positioned and limited through the side edges and the positioning wing plates, so that the stability of the relative positions of the multiple fan-shaped sleeves is guaranteed. And the stability of the positions of the central wire harness and the side wire harness is improved, so that the stability and the safety of the cable in the use process are ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of mine cables, and particularly relates to a multi-strand mine compression-resistant cable. Background Art

[0002] Mine cables are mainly applied to coal mining machines in mine operations. Through the cables, power can be supplied to the coal mining machines for operation. At present, mine cables usually consist of multiple bundles of copper wires, and the multiple bundles of copper wires are separated from each other by an insulating layer inside the cable. A filling layer is also provided between the multiple bundles of copper wires. However, at present, when the mine cable is squeezed, the multiple bundles of copper wires are prone to displacement or deformation under the influence of extrusion, affecting the service life of the cable. Seriously, electric leakage may occur and pose a danger. Summary of the Invention

[0003] An embodiment of the present invention provides a multi-strand mine compression-resistant cable, aiming to solve the problem that the overall compression strength of the existing mine cable is relatively low, affecting the service life.

[0004] To achieve the above object, the technical solution adopted by the present invention is: to provide a multi-strand mine compression-resistant cable, including:

[0005] A central sleeve;

[0006] A central wire bundle, installed inside the central sleeve, and an insulating sleeve is provided between the central wire bundle and the central sleeve;

[0007] A plurality of sector sleeves, which are arranged adjacent to each other in sequence along the circumferential direction of the central sleeve on the outside of the central sleeve. Along the circumferential direction of the central sleeve, a positioning wing plate extends from one side of the sector sleeve towards the adjacent sector sleeve, and a receiving groove for receiving the positioning wing plate is provided on the other side of the sector sleeve;

[0008] Side wire bundles, installed inside the sector sleeves;

[0009] A protective layer, sleeved inside the sector sleeves, for protecting the sector sleeves.

[0010] In a possible implementation manner, the positioning wing plate is an arc-shaped plate coaxially arranged with the central sleeve, and the positioning wing plate fits on the outside of the central sleeve. A relief notch for avoiding the positioning wing plate is provided on one side of the receiving groove close to the central sleeve.

[0011] In a possible implementation manner, an elastic plate is provided between the plurality of sector sleeves and the protective layer for pressing the sector sleeves tightly on the outside of the central sleeve.

[0012] In a possible implementation, the middle part of the elastic plate is installed between two adjacent sector sleeves, and both ends of the elastic plate abut against the outer sides of two adjacent sector sleeves.

[0013] In a possible implementation, a plurality of elastic plates are installed on the outer sides of the plurality of sector sleeves, and the side edges of two adjacent elastic plates are abutted and connected to each other.

[0014] In a possible implementation, an elastic guard plate for abutting against the outer side of an adjacent elastic plate is fixedly installed on the outer side of one side edge of the elastic plate.

[0015] In a possible implementation, an elastic ring is fixedly installed in the middle of the elastic plate, and a relief notch for installing the elastic ring is provided at the connection of the outer rings of two adjacent sector sleeves, and the elastic ring is clamped inside the relief notch.

[0016] In a possible implementation, a tension belt is wound around the outer sides of the plurality of elastic plates, the tension belt is spirally wound around the outer sides of the elastic plates, and the central sleeve is sleeved on the outer side of the tension belt.

[0017] In a possible implementation, a buffer layer is further provided between the central sleeve and the sector sleeve, and the buffer layer is sleeved and fixed on the outer side of the central sleeve.

[0018] In a possible implementation, a plurality of buffer protrusions for abutting against the inner arc side wall of the sector sleeve are protrudingly provided on the outer side wall of the buffer layer, and a central hole with a long circular direction along the axis direction of the central sleeve is provided in the middle of the buffer protrusion.

[0019] In the solution shown in the embodiments of the present application, compared with the prior art, by providing a central sleeve, a central wire harness is installed inside the central sleeve, and an insulating layer is provided between the central wire harness and the inside of the central sleeve. A plurality of sector sleeves are installed on the outer side of the central sleeve, and the plurality of sector sleeves are arranged around the outer side of the central sleeve, and when the plurality of sector sleeves are spliced together, an installation hole for installing the central sleeve is formed, the central sleeve is installed inside the installation hole, and a side wire harness is installed inside the sector sleeve. In the present application, a positioning wing plate and a receiving groove for receiving the positioning wing plate are respectively provided on two adjacent sector sleeves. When the plurality of sector sleeves are spliced together, the plurality of positioning wing plates can be connected end to end with each other through the positioning wing plates. The stability of the positions of the plurality of sector sleeves is improved. A protective layer is further sleeved on the outer sides of the plurality of sector sleeves, and the plurality of sector sleeves can be extruded and fixed to the outer side of the central sleeve through the protective layer. And the plurality of sector sleeves are positioned and limited through the side edges and the positioning wing plates to ensure the stability of the relative positions between the plurality of sector sleeves. The stability of the positions of the central wire harness and the side wire harness is improved, so as to ensure the stability and safety of the cable during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the structure of the multi-strand mine compression-resistant cable provided by the embodiment of the present invention;

[0021] Figure 2 Schematic diagram of the installation structure of the elastic plate provided by the embodiment of the present invention;

[0022] Figure 3 Schematic diagram of the installation structure of the buffer layer provided by the embodiment of the present invention.

[0023] Explanation of reference numerals:

[0024] 1. Central sleeve; 11. Insulating sleeve; 2. Central wire bundle; 3. Sector sleeve; 31. Positioning wing plate; 4. Side wire bundle; 5. Protective layer; 6. Elastic plate; 61. Elastic protective plate; 62. Elastic ring; 7. Tightening belt; 8. Buffer layer; 81. Buffer protrusion. Detailed implementation manners

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] Please refer to Figures 1 to 3 , and now the multi-strand mine compression-resistant cable provided by the present invention will be described. The multi-strand mine compression-resistant cable includes a central sleeve 1, a central wire bundle 2, a sector sleeve 3, a side wire bundle 4 and a protective layer 5. The central wire bundle 2 is installed inside the central sleeve 1, and an insulating sleeve 11 is provided between the central wire bundle 2 and the central sleeve 1; the number of the sector sleeves 3 is multiple, and the multiple sector sleeves 3 are sequentially arranged adjacent to each other along the circumferential direction of the central sleeve 1 on the outside of the central sleeve 1. Along the circumferential direction of the central sleeve 1, a positioning wing plate 31 extends from one side of the sector sleeve 3 towards the side close to the adjacent sector sleeve 3, and a receiving groove for receiving the positioning wing plate 31 is provided on the other side of the sector sleeve 3; the side wire bundle 4 is installed inside the sector sleeve 3; the protective layer 5 is sleeved inside the sector sleeve 3 and is used to protect the sector sleeve 3.

[0027] Compared with the prior art, the multi-strand mine compression-resistant cable provided in this embodiment is provided with a central sleeve 1. A central wire harness 2 is installed inside the central sleeve 1, and an insulating layer is provided between the central wire harness 2 and the inside of the central sleeve 1. A plurality of sector sleeves 3 are installed on the outer side of the central sleeve 1. The plurality of sector sleeves 3 surround the outer side of the central sleeve 1, and when the plurality of sector sleeves 3 are spliced together, they form a mounting hole for mounting the central sleeve 1. The central sleeve 1 is installed inside the mounting hole, and a side wire harness 4 is installed inside the sector sleeve 3. In this application, a positioning wing plate 31 and a receiving groove for receiving the positioning wing plate 31 are respectively provided on two adjacent sector sleeves 3. When the plurality of sector sleeves 3 are spliced together, the plurality of positioning wing plates 31 can be connected end to end with each other through the positioning wing plate 31. The stability of the positions of the plurality of sector sleeves 3 is improved. A protective layer 5 is also sleeved on the outer sides of the plurality of sector sleeves 3. Through the protective layer 5, the plurality of sector sleeves 3 can be extruded and fixed to the outer side of the central sleeve 1. And the plurality of sector sleeves 3 are positioned and limited through the sides and the positioning wing plate 31 to ensure the stability of the relative positions between the plurality of sector sleeves 3. The stability of the positions of the central wire harness 2 and the side wire harness 4 is improved, thereby ensuring the stability and safety of the cable during use.

[0028] Specifically, in this embodiment, both the central sleeve 1 and the sector sleeve 3 are made of PVC materials, which can play a certain supporting role for the side wire harness 4 and the central wire harness 2. The stability during use is enhanced.

[0029] Specifically, in this embodiment, a side wire harness 4 is installed inside the inner hole of the sector sleeve 3, and an insulating layer is also provided between the side wire harness 4 and the sector sleeve 3.

[0030] In some embodiments, the above-mentioned positioning wing plate 31 can adopt a structure as Figure 1 、 Figure 3 shown. See Figure 1 、 Figure 3, the positioning wing plate 31 is an arc-shaped plate coaxially arranged with the central sleeve 1, and the positioning wing plate 31 fits on the outer side of the central sleeve 1. A relief notch for avoiding the positioning wing plate 31 is provided on one side of the receiving groove close to the central sleeve 1. The positioning wing plate 31 is arranged on the outer arc of the sector sleeve 3 and extends outward from the sector sleeve 3. The positioning wing plate 31 is coaxially arranged with the sector sleeve 3. A receiving groove is provided on the outer arc of the lower sleeve body. A relief notch for avoiding the positioning wing plate 31 is provided on one side of the receiving groove close to the axis of the sector sleeve 3. When splicing a plurality of sector sleeves 3, the plurality of sector sleeves 3 can be moved from the outer side of the central sleeve 1 towards the central sleeve 1, so that the positioning wing plate 31 can slide into the receiving groove on the adjacent sector sleeve 3, which is convenient for the assembly between the plurality of sector sleeves 3. Moreover, when a single sector sleeve 3 is displaced outward, it can be limited by the positioning wing plate 31 and the receiving groove, and a plurality of sector sleeves 3 need to move outward synchronously, thereby increasing the resistance to the movement of a single sector sleeve 3 and improving the stability of the position of the sector sleeve 3.

[0031] In some embodiments, the above-mentioned sector sleeve 3 may adopt a structure such as Figure 1 , Figure 2 as shown. Referring to Figure 1 , Figure 2 together, an elastic plate 6 for pressing the sector sleeve 3 against the outer side of the central sleeve 1 is provided between the plurality of sector sleeves 3 and the protective layer 5. An elastic plate 6 is also installed on the outer side of the sector sleeve 3. The elastic plate 6 is located between the protective layer 5 and the sector sleeve 3, so that the acting force of the protective layer 5 can always apply an acting force to the sector sleeve 3 to move it towards the central sleeve 1, so that the plurality of sector sleeves 3 can fit together. An acting force for mutual limitation is exerted between two adjacent sector sleeves 3. Furthermore, the stability of the position of the sector sleeve 3 is improved. At the same time, when the cable is displaced due to extrusion, the sector sleeve 3 can be extruded and reset by the acting force of the elastic plate 6 and abutted against the central sleeve 1. The cable has a certain deformation recovery ability.

[0032] In some embodiments, the above-mentioned elastic plate 6 may adopt a structure such as Figure 2 as shown. Referring to Figure 2 , the middle part of the elastic plate 6 is installed between two adjacent sector sleeves 3, and both ends of the elastic plate 6 abut against the outer sides of two adjacent sector sleeves 3. The middle part of the elastic plate 6 is fixedly installed at the joint between two sector sleeves 3. The elastic plate 6 includes an installation part for installing between two sector sleeves 3 and elastic wing plates fixedly installed on both sides of the installation part. One side edge of the elastic wing plate is fixedly installed on the installation part, and the other side edge of the elastic wing plate abuts against the outer side surface of the sector sleeve 3. The middle part of the elastic wing plate is located on the outer side surface of the sector sleeve 3, so that the elastic wing plate can play a role in moving buffering and, under the acting force of the protective layer 5, can always apply an acting force to the sector sleeve 3 to move it towards the central sleeve 1.

[0033] In some embodiments, the above-mentioned elastic plate 6 can adopt a structure as shown in Figure 1 , Figure 2 . Referring to Figure 1 and Figure 2 together, a plurality of elastic plates 6 are installed on the outer side of a plurality of sector sleeves 3, and the side edges of two adjacent elastic plates 6 are in abutting connection with each other. A plurality of elastic plates 6 are installed on the outer side of the sector sleeve 3, and the plurality of elastic plates 6 surround the outer side of the plurality of sector sleeves 3, and two adjacent elastic plates 6 are in abutting connection with each other. When a single elastic plate 6 is deformed by force, the two side edges of the elastic plate 6 will push the adjacent elastic plate 6 to displace. Thus, the plurality of elastic plates 6 are displaced and deformed synchronously, thereby enhancing the acting force of the elastic plate 6 and improving the voltage withstand strength of the cable.

[0034] In some embodiments, the above-mentioned elastic plate 6 can adopt a structure as shown in Figure 2 . Referring to Figure 2 , an elastic guard plate 61 for abutting against the outer side of the adjacent elastic plate 6 is fixedly installed on the outer side of one side edge of the elastic plate 6. An elastic guard plate 61 extends outward from one side edge of the elastic plate 6, and the cross section of the elastic guard plate 61 is an arc structure. One side edge of the elastic guard plate 61 is fixedly installed on the outer side surface of the elastic plate 6, and the other side edge of the elastic guard plate 61 abuts against the outer side surface of the adjacent elastic plate 6, so as to make up for the space at the abutting place of the two elastic plates 6, and thus can play a buffering role in the abutting contact of the two adjacent elastic plates 6. Ensure that a certain buffering and self-recovery effect can be achieved when the periphery of the plurality of sector sleeves 3 is squeezed. Further improve the stability of the cable during use.

[0035] In some embodiments, the above-mentioned elastic plate 6 can adopt a structure as shown in Figure 2 . Referring to Figure 2 , an elastic ring 62 is fixedly installed in the middle of the elastic plate 6, and a relief notch for installing the elastic ring 62 is provided at the connection of the outer circles of two adjacent sector sleeves 3, and the elastic ring 62 is clamped inside the relief notch. Notches are provided on both side edges of the outer arc of the sector sleeve 3. When the side edges of the two sector sleeves 3 abut against each other, the notches on the outer sides of the two sector sleeves 3 overlap and form a relief notch for installing the elastic ring 62. The inner hole of the elastic ring 62 provides a certain amount of deformation for the deformation of the elastic ring 62. When the sector sleeve 3 displaces away from the center sleeve 1 and the size of the relief notch becomes larger, the elastic ring 62 can always fit on the inner wall of the relief notch according to its own deformation, ensuring the stability of the installation of the elastic plate 6 between the two sector sleeves 3.

[0036] In some embodiments, the above-mentioned elastic plate 6 can adopt a structure as shown in Figure 2 . Referring to Figure 2, a tensioning belt 7 is wound around the outer sides of multiple elastic plates 6. The tensioning belt 7 is spirally wound around the outer sides of the elastic plates 6, and the central sleeve 1 is sleeved on the outer side of the tensioning belt 7. The tensioning sleeve is spirally wound around the outer sides of the elastic plates 6, which can fix the elastic plates 6 on the outer sides of multiple sector sleeves 3. On the one hand, it can improve the installation stability of the elastic plates 6. At the same time, when adding the protective layer 5 on the outer side, it can ensure the stability of the positions of the multiple elastic plates 6. It is convenient for the processing of the protective layer 5 on the outer side of the cable, so that the protective layer 5 can be effectively tightened on the outer sides of the elastic plates 6.

[0037] In some embodiments, the above-mentioned central sleeve 1 can adopt structures such as Figure 1 , Figure 3 as shown. Referring to Figure 1 , Figure 3 together, a buffer layer 8 is further arranged between the central sleeve 1 and the sector sleeves 3. The buffer layer 8 is sleeved and fixed on the outer side of the central sleeve 1. The buffer layer 8 is sleeved on the outer side of the central sleeve 1, and the multiple sector sleeves 3 abut against the outer side of the buffer layer 8. When installing the sector sleeves 3, the sector sleeves 3 can be squeezed to move towards the direction close to the central sleeve 1, and the outer sides of the inner arcs of the sector sleeves 3 abut against the outer side of the buffer layer 8. Through the setting of the buffer layer 8, on the one hand, it can prevent the central sleeve 1 from rotating between the multiple sector sleeves 3. At the same time, by using the elastic deformation of the buffer layer 8, it can ensure that the multiple sector sleeves 3 can be mutually abutted against each other. Avoid gaps between adjacent two sector sleeves 3 affecting the installation stability of the laterally arranged wire harnesses 4.

[0038] In some embodiments, the above-mentioned buffer layer 8 can adopt structures such as Figure 3 as shown. Referring to Figure 3 , a plurality of buffer protrusions 81 for abutting against the inner arc side walls of the sector sleeves 3 are protrudingly arranged on the outer side wall of the buffer layer 8. A central hole with a long circular direction along the axis direction of the central sleeve 1 is arranged in the middle of the buffer protrusion 81. The buffer layer 8 is fixedly installed on the outer side of the central sleeve 1, and a plurality of buffer protrusions 81 are protrudingly arranged on the outer side of the buffer layer 8. The plurality of buffer protrusions 81 can play a buffering role, and a central hole is arranged in the middle of the buffer protrusion 81. Through the setting of the central hole, the buffering amount of the buffer protrusion 81 can be increased. When the multiple sector sleeves 3 are installed on the outer side of the central sleeve 1, the inner arc surfaces of the multiple sector sleeves 3 abut against the outer sides of the buffer protrusions 81, realizing the tight connection between the sector sleeves 3 and the buffer layer 8. Through the buffering effect of the buffer layer 8, on the one hand, it can improve the safety of the central sleeve 1 and can effectively prevent the central sleeve 1 from rotating between the multiple sector sleeves 3. At the same time, it can make the multiple sector sleeves 3 fit tightly together, limit each other, and ensure the stability of the relative positions of the multiple sector sleeves 3.

[0039] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multi-strand mine compression-resistant cable, characterized in that, Comprising: Central sleeve (1); Central wire harness (2), installed inside the central sleeve (1), and an insulating sleeve (11) is provided between the central wire harness (2) and the central sleeve (1); Sector sleeves (3), with a plurality of them. The plurality of sector sleeves (3) are sequentially adjacent to each other along the circumferential direction of the central sleeve (1) and are arranged on the outer side of the central sleeve (1). Along the circumferential direction of the central sleeve (1), a positioning wing plate (31) extends from one side of the sector sleeve (3) towards the side close to the adjacent sector sleeve (3), and a receiving groove for receiving the positioning wing plate (31) is provided on the other side of the sector sleeve (3); Side wire harness (4), installed inside the sector sleeve (3); Protective layer (5), sleeved inside the sector sleeve (3) and used to protect the sector sleeve (3).

2. The multi-strand mine compression-resistant cable according to claim 1, wherein, The positioning wing plate (31) is an arc-shaped plate coaxially arranged with the central sleeve (1), and the positioning wing plate (31) is attached to the outer side of the central sleeve (1). A relief notch for avoiding the positioning wing plate (31) is provided on the side of the receiving groove close to the central sleeve (1).

3. The multi-strand mine compression-resistant cable according to claim 1, wherein An elastic plate (6) is provided between the plurality of sector sleeves (3) and the protective layer (5) and is used to press the sector sleeve (3) against the outer side of the central sleeve (1).

4. The multi-strand mine compression-resistant cable according to claim 3, wherein, The middle part of the elastic plate (6) is installed between two adjacent sector sleeves (3), and the two ends of the elastic plate (6) abut against the outer sides of the two adjacent sector sleeves (3).

5. The multi-strand mine compression-resistant cable according to claim 4, wherein, A plurality of the elastic plates (6) are installed on the outer sides of the plurality of sector sleeves (3), and the side edges of two adjacent elastic plates (6) are in abutting connection with each other.

6. The multi-strand mine compression-resistant cable according to claim 5, wherein An elastic guard plate (61) for abutting against the outer side of the adjacent elastic plate (6) is fixedly installed on the outer side of one side edge of the elastic plate (6).

7. The multi-strand mine compression-resistant cable according to claim 4, characterized in that, An elastic ring (62) is fixedly installed in the middle of the elastic plate (6). A relief notch for installing the elastic ring (62) is provided at the connection of the outer circles of two adjacent sector sleeves (3), and the elastic ring (62) is clamped inside the relief notch.

8. The multi-strand mine compression-resistant cable according to claim 3, wherein, A tensioning belt (7) is wound around the outer sides of the plurality of elastic plates (6). The tensioning belt (7) is spirally wound around the outer sides of the elastic plates (6), and the central sleeve (1) is sleeved on the outer side of the tensioning belt (7).

9. The multi-strand mine compression-resistant cable according to claim 1, wherein, A buffer layer (8) is further provided between the central sleeve (1) and the sector sleeve (3), and the buffer layer (8) is sleeved and fixed on the outer side of the central sleeve (1).

10. The multi-strand mine compression-resistant cable according to claim 9, characterized in that, A plurality of buffer protrusions (81) for abutting against the inner arc side wall of the sector sleeve (3) protrude from the outer side wall of the buffer layer (8). A central hole with a long circular direction along the axial direction of the central sleeve (1) is provided in the middle of the buffer protrusion (81).

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