A multi-harness mining pressure-resistant cable

Abstract

The present invention provides a multi-wire harness mine pressure-resistant cable, which includes a center sleeve, a center harness, a fan-shaped sleeve, a side harness and a protective layer. The multi-wire harness mine pressure-resistant cable provided by the present invention is provided with a center sleeve, a center harness is installed inside the center sleeve, and an insulating layer is provided between the center harness and the inside of the center sleeve. A plurality of fan-shaped sleeves are installed on the outside of the center sleeve, and the plurality of fan-shaped sleeves are arranged around the outside of the center sleeve. Positioning wings and receiving grooves for accommodating positioning wings are respectively provided on two adjacent fan-shaped sleeves. When the plurality of fan-shaped sleeves are spliced ​​together, the plurality of positioning wings can be connected end to end through the positioning wings. In addition, the plurality of fan-shaped sleeves are positioned and limited by the side edges and the positioning wings to ensure the stability of the relative positions between the plurality of fan-shaped sleeves. The stability of the positions of the center harness and the side harness is improved, thereby ensuring the stability and safety of the cable during use.

Description

Technical Field

[0001] The invention belongs to the technical field of mining cables, and in particular relates to a multi-harness mining compression-resistant cable. Background Art

[0002] Mining cables are primarily used in coal mining machines, providing power to these machines. Currently, mining cables typically consist of multiple bundles of copper wire separated by insulation layers. Filler layers are placed between the bundles, but when squeezed, these cables can easily shift or deform, shortening the cable's service life. In severe cases, this can even lead to leakage, creating a risk of electrical leakage. Summary of the Invention

[0003] The embodiment of the present invention provides a multi-harness mining compression-resistant cable, which aims to solve the problem of low overall compression strength of mining cables in the prior art, which affects their service life.

[0004] To achieve the above object, the technical solution adopted by the present invention is to provide a multi-harness mining pressure-resistant cable, comprising:

[0005] Center sleeve;

[0006] A central wiring harness is installed inside the central sleeve, with an insulating sleeve provided between the central wiring harness and the central sleeve;

[0007] There are multiple sector-shaped sleeves, and the multiple sector-shaped sleeves are arranged adjacent to each other on the outside of the central sleeve along the circumference of the central sleeve. Along the circumference of the central sleeve, one side of the sector-shaped sleeve is provided with a positioning wing plate extending toward the side of the adjacent sector-shaped sleeve, and the other side of the sector-shaped sleeve is provided with a receiving groove for accommodating the positioning wing plate;

[0008] A side wiring harness is installed inside the fan-shaped sleeve;

[0009] The protective layer is sleeved inside the fan-shaped cover and is used for protecting the fan-shaped cover.

[0010] In one possible implementation, the positioning wing is an arc-shaped plate coaxially arranged with the center sleeve, and the positioning wing is attached to the outer side of the center sleeve. The side of the accommodating groove close to the center sleeve is provided with a clearance notch for avoiding the positioning wing.

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

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

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

[0014] In a possible implementation, an elastic protective plate is fixedly mounted on the outer side of one side of the elastic plate and is used to abut against the outer side of an adjacent elastic plate.

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

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

[0017] In a possible implementation, a buffer layer is further provided between the central sleeve and the sector sleeves, 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 are protruding from the outer wall of the buffer layer for abutting against the inner arc side wall of the fan-shaped sleeve, and a center hole is provided in the middle of the buffer protrusion in an oblong direction along the axis of the center sleeve.

[0019] Compared to the prior art, the solution shown in the embodiments of the present application utilizes a central sleeve, within which a central wiring harness is installed, with an insulating layer disposed between the central wiring harness and the interior of the central sleeve. Multiple fan-shaped sleeves are mounted on the outside of the central sleeve, surrounding the outer side of the central sleeve. When the multiple fan-shaped sleeves are spliced ​​together, they form a mounting hole for mounting the central sleeve. The central sleeve is mounted within the mounting hole, and the side wiring harnesses are mounted within the fan-shaped sleeves. In the present application, positioning wings and receiving grooves for accommodating the positioning wings are provided on each of two adjacent fan-shaped sleeves. When the multiple fan-shaped sleeves are spliced ​​together, the positioning wings can be used to connect the positioning wings end to end. To improve the positional stability of the multiple fan-shaped sleeves, a protective layer is also provided on the outer side of the multiple fan-shaped sleeves, which can be squeezed and fixed to the outer side of the central sleeve. Furthermore, the multiple fan-shaped sleeves are positioned and limited by the side edges and positioning wings, ensuring the relative stability of the multiple fan-shaped sleeves. This improves the positional stability of the central wiring harness and the side wiring harnesses, thereby ensuring the stability and safety of the cable during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of a multi-harness mining compression-resistant cable provided in an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the installation structure of the elastic plate provided in an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the installation structure of the buffer layer provided in an embodiment of the present invention.

[0023] Description of reference numerals:

[0024] 1. Center sleeve; 11. Insulating sleeve; 2. Center wiring harness; 3. Fan-shaped sleeve; 31. Positioning wing plate; 4. Side wiring harness; 5. Protective layer; 6. Elastic plate; 61. Elastic guard plate; 62. Elastic ring; 7. Tensioning belt; 8. Buffer layer; 81. Buffer protrusion. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is 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 intended to limit the present invention.

[0026] Please also refer to Figures 1 to 3 , the multi-bundle mining pressure-resistant cable provided by the present invention is now described. The multi-bundle mining pressure-resistant cable includes a center sleeve 1, a center wire harness 2, a fan-shaped sleeve 3, a side wire harness 4 and a protective layer 5. The center wire harness 2 is installed inside the center sleeve 1, and an insulating sleeve 11 is provided between the center wire harness 2 and the center sleeve 1; there are multiple fan-shaped sleeves 3, and multiple fan-shaped sleeves 3 are arranged adjacent to each other on the outside of the center sleeve 1 along the circumference of the center sleeve 1. Along the circumference of the center sleeve 1, a positioning wing plate 31 is extended on one side of the fan-shaped sleeve 3 close to the adjacent fan-shaped sleeve 3, and a receiving groove for accommodating the positioning wing plate 31 is provided on the other side of the fan-shaped sleeve 3; the side wire harness 4 is installed inside the fan-shaped sleeve 3; the protective layer 5 is sleeved inside the fan-shaped sleeve 3 to protect the fan-shaped sleeve 3.

[0027] Compared with the prior art, the multi-harness mining pressure-resistant cable provided in this embodiment is provided with a center sleeve 1, a center harness 2 is installed inside the center sleeve 1, and an insulating layer is provided between the center harness 2 and the inside of the center sleeve 1. A plurality of fan-shaped sleeves 3 are installed on the outside of the center sleeve 1, and the plurality of fan-shaped sleeves 3 are arranged around the outside of the center sleeve 1. When the plurality of fan-shaped sleeves 3 are spliced ​​together, they form a mounting hole for installing the center sleeve 1. The center sleeve 1 is installed inside the mounting hole, and a side harness 4 is installed inside the fan-shaped sleeve 3. In this application, positioning wing plates 31 and accommodating grooves for accommodating the positioning wing plates 31 are respectively provided on two adjacent fan-shaped sleeves 3. When the plurality of fan-shaped 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 plates 31. In order to improve the stability of the positions of the plurality of fan-shaped sleeves 3, a protective layer 5 is also provided on the outside of the plurality of fan-shaped sleeves 3, and the plurality of fan-shaped sleeves 3 can be squeezed and fixed to the outside of the center sleeve 1 through the protective layer 5. Furthermore, the plurality of sector sleeves 3 are positioned and limited by the side edges and the positioning wing plates 31, thereby ensuring the relative position stability of the plurality of sector sleeves 3. This improves the position stability of the center harness 2 and the side harness 4, thereby ensuring the stability and safety of the cable during use.

[0028] Specifically, in this embodiment, the central sleeve 1 and the fan-shaped sleeve 3 are both made of PVC material, which can provide a certain support for the side harnesses 4 and the central harness 2, thereby enhancing stability during use.

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

[0030] In some embodiments, the positioning wing plate 31 may be used as follows: Figure 1 、 Figure 3 See also Figure 1 、 Figure 3The positioning wing plate 31 is an arc-shaped plate coaxially arranged with the center sleeve 1, and the positioning wing plate 31 is attached to the outside of the center sleeve 1, and a clearance notch for avoiding the positioning wing plate 31 is provided on the side of the receiving groove close to the center sleeve 1. The positioning wing plate 31 is arranged on the outside of the inner arc of the fan-shaped sleeve 3 and extends to the outside of the fan-shaped sleeve 3. The positioning wing plate 31 is coaxial with the fan-shaped sleeve 3. A receiving groove is provided on the outside of the inner arc of the lower sleeve, and a clearance notch for avoiding the positioning wing plate 31 is provided on the side of the receiving groove close to the axis of the fan-shaped sleeve 3. When multiple fan-shaped sleeves 3 are spliced, the multiple fan-shaped sleeves 3 can be moved from the outside of the center sleeve 1 to the direction close to the center sleeve 1, so that the positioning wing plate 31 can slide into the inside of the receiving groove on the adjacent fan-shaped sleeve 3, which is convenient for the assembly between multiple fan-shaped sleeves 3. Moreover, when a single sector sleeve 3 moves outward, it can be limited by the positioning wing plate 31 and the accommodating groove, requiring multiple sector sleeves 3 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 fan-shaped sleeve 3 can be used as follows Figure 1 、 Figure 2 See also Figure 1 、 Figure 2 An elastic plate 6 is provided between the multiple sector sleeves 3 and the protective layer 5 for pressing the sector sleeves 3 against the outside of the center sleeve 1. An elastic plate 6 is also installed on the outside of the sector sleeve 3. The elastic plate 6 is located between the protective layer 5 and the sector sleeve 3, so that the force of the protective layer 5 can always be applied to the sector sleeve 3 to move toward the center sleeve 1, so that the multiple sector sleeves 3 can fit together. The two adjacent sector sleeves 3 act as a mutual limiting force. This improves the stability of the position of the sector sleeve 3. At the same time, when the cable is squeezed and displaced, the sector sleeve 3 can be squeezed back to its original position and pressed against the center sleeve 1 by the force of the elastic plate 6. This gives the cable a certain deformation recovery ability.

[0032] In some embodiments, the elastic plate 6 may be formed as follows: Figure 2 The structure shown. Figure 2 , the middle part of the elastic plate 6 is installed between two adjacent sector-shaped sleeves 3, and the two ends of the elastic plate 6 are against the outside of the two adjacent sector-shaped sleeves 3. The middle part of the elastic plate 6 is fixedly installed at the joint between the two sector-shaped sleeves 3. The elastic plate 6 includes a mounting portion for mounting between the two sector-shaped sleeves 3, and elastic wing plates fixedly installed on both sides of the mounting portion, one side of the elastic wing plate is fixedly mounted on the mounting portion, and the other side of the elastic wing plate is against the outer surface of the sector-shaped sleeve 3. The middle part of the elastic wing plate is located on the outer side of the sector-shaped sleeve 3, so that the elastic wing plate can play a role of mobile buffering, and under the action of the protective layer 5, it can always apply a force close to the center sleeve 1 to the sector-shaped sleeve 3.

[0033] In some embodiments, the elastic plate 6 may be formed as follows: Figure 1 、 Figure 2 See also Figure 1 、 Figure 2 Multiple elastic plates 6 are mounted outside the multiple sector-shaped sleeves 3, with the sides of adjacent elastic plates 6 abutting against each other. Multiple elastic plates 6 are mounted outside the sector-shaped sleeves 3, surrounding the multiple sector-shaped sleeves 3. Adjacent elastic plates 6 abut against each other. When a single elastic plate 6 deforms under force, its sides push adjacent elastic plates 6 to move. This causes the multiple elastic plates 6 to deform synchronously, enhancing the force of the elastic plates 6 and improving the cable's compressive strength.

[0034] In some embodiments, the elastic plate 6 may be formed as follows: Figure 2 The structure shown. Figure 2 An elastic guard plate 61 is fixedly mounted on the outside of one side of the elastic plate 6, and is used to abut against the outside of the adjacent elastic plate 6. An elastic guard plate 61 is extended outward from one side of the elastic plate 6, and the cross-section of the elastic guard plate 61 is an arc-shaped structure. One side of the elastic guard plate 61 is fixedly mounted on the outer surface of the elastic plate 6, and the other side of the elastic guard plate 61 abuts against the outer surface of the adjacent elastic plate 6, thereby filling the space where the two elastic plates 6 abut, thereby providing a buffering effect for the contact between the two adjacent elastic plates 6. This ensures that when multiple fan-shaped sleeves 3 are squeezed, they can all play a certain buffering and self-recovering role, further improving the stability of the cable during use.

[0035] In some embodiments, the elastic plate 6 may be formed as follows: Figure 2 The structure shown. Figure 2 An elastic ring 62 is fixedly mounted in the middle of the elastic plate 6. A clearance notch for mounting the elastic ring 62 is provided at the connection between the outer rings of two adjacent sector-shaped sleeves 3. The elastic ring 62 is clamped inside the clearance notch. Notches are provided on both sides of the outer arc of the sector-shaped sleeve 3. When the sides of the two sector-shaped sleeves 3 are brought together, the notches on the outer sides of the two sector-shaped sleeves 3 overlap and form a clearance notch for mounting the elastic ring 62. The elastic ring 62 is clamped in the clearance notch. 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-shaped sleeve 3 moves away from the center sleeve 1, causing the clearance notch to increase in size, the elastic ring 62 can always fit on the inner wall of the clearance notch according to its own deformation, thereby ensuring the stability of the installation of the elastic plate 6 between the two sector-shaped sleeves 3.

[0036] In some embodiments, the elastic plate 6 may be formed as follows: Figure 2 The structure shown. Figure 2The outer sides of the multiple elastic plates 6 are wrapped with a tensioning band 7, which is spirally wound around the outer sides of the elastic plates 6, and the central sleeve 1 is sleeved over the outer sides of the tensioning band 7. The tensioning sleeve is spirally wound around the outer sides of the elastic plates 6, securing the elastic plates 6 to the outer sides of the multiple sector sleeves 3. This improves the stability of the installation of the elastic plates 6 and ensures the stability of the position of the multiple elastic plates 6 when the protective layer 5 is added to the outer sides. This also facilitates the processing of the protective layer 5 on the outer side of the cable, allowing the protective layer 5 to be effectively tightened around the outer sides of the elastic plates 6.

[0037] In some embodiments, the center sleeve 1 may be Figure 1 、 Figure 3 See also Figure 1 、 Figure 3 A buffer layer 8 is also provided between the central sleeve 1 and the sector sleeves 3, and the buffer layer 8 is fixedly mounted on the outside of the central sleeve 1. A buffer layer 8 is mounted on the outside of the central sleeve 1, and multiple sector sleeves 3 are against the outside of the buffer layer 8. When installing the sector sleeves 3, the sector sleeves 3 can be squeezed and moved in the direction close to the central sleeve 1, and the outer edge of the inner arc of the sector sleeve 3 is abutted against the outside of the buffer layer 8. The provision of the buffer layer 8 can prevent the central sleeve 1 from rotating between the multiple sector sleeves 3. At the same time, the elastic deformation of the buffer layer 8 can ensure that the multiple sector sleeves 3 can fit together in pairs. Avoid the gap between two adjacent sector sleeves 3 to affect the stability of the later installation of the side harness 4.

[0038] In some embodiments, the buffer layer 8 may be formed as follows: Figure 3 The structure shown. Figure 3 The outer wall of the buffer layer 8 is provided with a plurality of buffer protrusions 81 for abutting against the inner arc side wall of the fan-shaped sleeve 3, and a center hole is provided in the middle of the buffer protrusion 81 in an oblong direction along the axis of the center sleeve 1. The buffer layer 8 is fixedly installed on the outer side of the center sleeve 1, and a plurality of buffer protrusions 81 are provided on the outer side of the buffer layer 8. The plurality of buffer protrusions 81 can play a buffering role, and a center hole is provided in the middle of the buffer protrusion 81. The buffering amount of the buffer protrusion 81 can be increased by the provision of the center hole. When the plurality of fan-shaped sleeves 3 are installed on the outer side of the center sleeve 1, the inner arc surface of the plurality of fan-shaped sleeves 3 abuts against the outer side of the buffer protrusion 81, thereby achieving a tight connection between the fan-shaped sleeve 3 and the buffer layer 8. The buffering effect of the buffer layer 8 can improve the safety of the center sleeve 1 on the one hand, and can effectively prevent the center sleeve 1 from rotating between the plurality of fan-shaped sleeves 3. At the same time, the plurality of fan-shaped sleeves 3 can be tightly fitted together and limited to each other, thereby ensuring the stability of the relative positions of the plurality of fan-shaped sleeves 3.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-harness mining compression-resistant cable, characterized in that: include: Center sleeve (1); A central wiring harness (2) is installed inside the central sleeve (1), and an insulating sleeve (11) is provided between the central wiring harness (2) and the central sleeve (1); There are a plurality of sector-shaped sleeves (3), wherein the plurality of sector-shaped sleeves (3) are sequentially arranged adjacent to each other on the outside of the center sleeve (1) along the circumference of the center sleeve (1), and a positioning wing plate (31) is extended from one side of the sector-shaped sleeve (3) toward the side of the adjacent sector-shaped sleeve (3) along the circumference of the center sleeve (1), and an accommodating groove for accommodating the positioning wing plate (31) is provided on the other side of the sector-shaped sleeve (3); A side wiring harness (4) is installed inside the fan-shaped sleeve (3); A protective layer (5) is sleeved inside the sector-shaped sleeve (3) and is used to protect the sector-shaped sleeve (3); An elastic plate (6) is provided between the plurality of sector-shaped sleeves (3) and the protective layer (5) for pressing the sector-shaped sleeves (3) against the outside of the central sleeve (1); The middle portion of the elastic plate (6) is installed between two adjacent sector-shaped sleeves (3), and both ends of the elastic plate (6) abut against the outer sides of the two adjacent sector-shaped sleeves (3); A plurality of elastic plates (6) are installed on the outside of the plurality of sector-shaped sleeves (3), and the sides of two adjacent elastic plates (6) are abutted and connected to each other; An elastic protective plate (61) is fixedly mounted on the outer side of one side edge of the elastic plate (6) and is used to abut against the outer side of the adjacent elastic plate (6).

2. The multi-harness mining pressure-resistant cable according to claim 1, characterized in that: The positioning wing plate (31) is an arc-shaped plate coaxially arranged with the center sleeve (1), and the positioning wing plate (31) is attached to the outside of the center sleeve (1). A clearance notch for avoiding the positioning wing plate (31) is provided on the side of the accommodating groove close to the center sleeve (1).

3. The multi-harness mining pressure-resistant cable according to claim 1, characterized in that: An elastic ring (62) is fixedly installed in the middle of the elastic plate (6), and a clearance notch for installing the elastic ring (62) is provided at the connection between the outer rings of two adjacent sector-shaped sleeves (3), and the elastic ring (62) is clamped inside the clearance notch.

4. The multi-harness mining pressure-resistant cable according to claim 1, characterized in that: A tensioning belt (7) is wound around the outside of the plurality of elastic plates (6), the tensioning belt (7) is spirally wound around the outside of the elastic plates (6), and the central sleeve (1) is sleeved around the outside of the tensioning belt (7).

5. The multi-harness mining pressure-resistant cable according to claim 1, characterized in that: 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 outside of the central sleeve (1).

6. The multi-harness mine pressure-resistant cable according to claim 5, characterized in that: A plurality of buffer protrusions (81) are protruding from the outer wall of the buffer layer (8) for abutting against the inner arc side wall of the sector sleeve (3), and a center hole is provided in the middle of the buffer protrusion (81) in an oblong direction along the axis of the center sleeve (1).

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