阅读说明：本技术 一种具有抗压功能的矿用电缆 (Mining cable with compression resistance function ) 是由 李万松 闵泽宇 朱峰林 于 2021-06-15 设计创作，主要内容包括：本发明公开了一种具有抗压功能的矿用电缆,属于电缆技术领域,所述内护套呈环形状结构,所述内护套的内部成型设有与缆芯束一一对应且分别对相应缆芯束进行缓冲防护的调节缓冲块,且每个调节缓冲块均为扇形结构,每相邻两个调节缓冲块的侧壁均不接触,且每相邻两个调节缓冲块之间均形成一个呈条形状结构的缓冲腔,并且所有缓冲腔均相较于内护套的圆心上并形成一个完整的缓冲容腔。本发明当该电缆受到挤压时,内护套、调节缓冲块会在外力作用下被挤压变形,以此对缆芯束进行缓冲防护,当内护套、调节缓冲块被挤压发生形变时,通过缓冲腔可给与内护套、调节缓冲块足够的形变空间,以提高内护套、调节缓冲块对缆芯束的缓冲效果。(The invention discloses a mining cable with a compression-resistant function, which belongs to the technical field of cables, wherein an inner sheath is of a ring-shaped structure, adjusting buffer blocks which correspond to cable core bundles in a one-to-one manner and respectively buffer and protect the corresponding cable core bundles are formed inside the inner sheath, each adjusting buffer block is of a fan-shaped structure, the side walls of every two adjacent adjusting buffer blocks are not in contact, a buffer cavity in a strip-shaped structure is formed between every two adjacent adjusting buffer blocks, and all the buffer cavities are compared with the center of the inner sheath and form a complete buffer cavity. When the cable is extruded, the inner sheath and the adjusting buffer block can be extruded and deformed under the action of external force, so that the cable core bundle is buffered and protected, and when the inner sheath and the adjusting buffer block are extruded and deformed, enough deformation space can be provided for the inner sheath and the adjusting buffer block through the buffer cavity, so that the buffering effect of the inner sheath and the adjusting buffer block on the cable core bundle is improved.)

1. The utility model provides a mining cable with resistance to compression function, includes inner sheath (1), the inboard equidistant cable core bundle that is equipped with of inner sheath (1), and the cover is equipped with metallic shield layer (4), flame retardant coating (5) and oversheath (6) of being made by the polyethylene material in proper order on inner sheath (1), the cable core bundle includes wire (2) and insulating sheath (3) of cover on wire (2), its characterized in that, inner sheath (1) is the annular structure, the inside shaping of inner sheath (1) is equipped with and cable core bundle one-to-one and respectively to corresponding regulation buffer block (7) that cushion the protection was restrainted, and every regulation buffer block (7) are fan-shaped structure, and the lateral wall of every two adjacent regulation buffer blocks (7) all does not contact, and all forms a buffer chamber (9) that is the bar column structure between every two adjacent regulation buffer block (7), and all the buffer cavities (9) are compared with the center of the circle of the inner sheath (1) and form a complete buffer cavity.

2. The mining cable with the pressure-resistant function according to claim 1, characterized in that the inner sheath (1) and the adjusting buffer block (7) are both made of rubber material.

3. The mining cable with the compression-resistant function according to claim 1, wherein each adjusting buffer block (7) is provided with a strip-shaped limiting groove (8) for installing a corresponding cable core bundle, the circle center of each adjusting buffer block (7) is provided with a conical opening (13) communicated with the corresponding strip-shaped limiting groove (8), and each strip-shaped limiting groove (8) is communicated with the buffer accommodating cavity through the corresponding conical opening (13).

4. The mining cable with the pressure-resistant function according to claim 3, wherein the inner sheath (1) is provided with air vents (12) at equal intervals, the air vents correspond to the buffer cavities (9) one by one and are communicated with the buffer cavities (9), and the air vents (12) are communicated with the buffer cavities (9), the tapered openings (13) and the strip-shaped limiting grooves (8) to form channels capable of dissipating heat of the cable core bundles.

5. The mining cable with the compression-resistant function according to claim 4, wherein two strip-shaped notches (10) formed in the adjusting buffer block (7) are symmetrically arranged inside each strip-shaped limiting groove (8), communication holes (11) communicated with the buffer containing cavity are formed in each strip-shaped notch (10) at equal intervals, the exhaust port (12) is communicated with the buffer containing cavity, the communication holes (11), the strip-shaped notches (10) and the strip-shaped limiting grooves (8) and forms a channel capable of dissipating heat of the cable core bundle.

6. The mining cable with the pressure-resistant function according to claim 5, characterized in that the outer ring of the insulating sleeve (3) is provided with annular notches (31) at equal intervals and communicated with the strip-shaped limiting groove (8), and each annular notch (31) is communicated with the corresponding side strip-shaped notch (10).

7. The mining cable with the pressure-resistant function according to claim 3, wherein an elastic support frame (14) for elastically supporting the inner wall of the buffer cavity is arranged inside the buffer cavity, strip-shaped insertion blocks (15) which correspond to the conical openings (13) in a one-to-one manner, are inserted into the inner sides of the corresponding conical openings (13) and elastically support the inner walls of the corresponding conical openings (13) are formed on the elastic support frame (14), and the support frame (14) and the strip-shaped insertion blocks (15) are all woven by metal materials.

8. The mining cable with the pressure-resistant function as claimed in claim 7, wherein the supporting frame (14) and the strip-shaped plugging block (15) are all woven from beryllium bronze material.

9. The mining cable with the compression-resistant function according to claim 5, wherein the inner sheath (1) is tightly attached to the metal shielding layer (4), the outer ring of the metal shielding layer (4) is provided with extending columns (16) with ends inserted into the outer sheath (6) at equal intervals, the fireproof layer (5) is provided with through holes (17) for the extending columns (16) to pass through, the metal shielding layer (4) is provided with blind holes (18) for the extending columns (16) to pass through, and the metal shielding layer (4) and the extending columns (16) integrally formed with the metal shielding layer form a conduction mechanism capable of guiding heat in the exhaust port (12).

Technical Field

The invention relates to the technical field of cables, in particular to a mining cable with a compression-resistant function.

Background

The cable is an insulated conductor formed by arranging one or more mutually insulated conductive cores in a sealed sheath, a protective covering layer can be added outside the insulated conductor for transmitting, distributing electric energy or transmitting electric signals, the cable has the characteristics of internal electrification and external insulation, the cable is various in types, and different cables are applied to different fields.

When the existing majority of mining cables are extruded, due to the poor buffering effect of the cables, the cable core bundles inside the cables are easy to bend and deform when being extruded, so that the cable core bundles can be broken and disconnected when being used, the service life of the cable core bundles is shortened, and the majority of mining cables cannot have a good buffering effect and a good heat dissipation effect.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to provide a mining cable with a pressure-resistant function, so as to solve the problems in the background technology.

2. Technical scheme

In order to solve the problems, the invention adopts the following technical scheme:

the utility model provides a mining cable with resistance to compression function, includes the inner sheath, the inboard equidistant cable core bundle that is equipped with of inner sheath, and the inner sheath sheathes in proper order and overlap and be equipped with metallic shield layer, flame retardant coating and the oversheath of making by the polyethylene material, the cable core bundle includes that wire and cover locate the insulating sheath on the wire, the inner sheath is the annular column structure, the inside shaping of inner sheath is equipped with and cushions the buffer block that protects with cable core bundle one-to-one and carry out buffering to corresponding cable core bundle respectively, and every regulation buffer block is fan-shaped structure, and every two adjacent lateral walls of adjusting the buffer block all do not contact, and all form one between every two adjacent regulation buffer blocks and be the cushion chamber that is bar column structure to all cushion chamber homogeneous phases are compared on the centre of circle of inner sheath and form a complete buffering appearance chamber.

Preferably, the inner sheath and the adjusting buffer block are both made of rubber materials.

Furthermore, each adjusting buffer block is provided with a strip-shaped limiting groove for installing a corresponding cable core bundle, a cone-shaped opening communicated with the corresponding strip-shaped limiting groove is formed in the circle center of each adjusting buffer block, and each strip-shaped limiting groove is communicated with the buffer accommodating cavity through the corresponding cone-shaped opening.

Furthermore, the inner sheath is equidistantly provided with air outlets which are in one-to-one correspondence with the buffer cavities and are communicated with the buffer cavities, and the air outlets are communicated with the buffer cavities, the conical openings and the strip-shaped limiting grooves to form channels capable of dissipating heat of the cable core bundles.

Furthermore, each strip-shaped limiting groove is internally and symmetrically provided with two strip-shaped notches which are arranged on the adjusting buffer block, the communicating holes communicated with the buffer containing cavity are arranged on each strip-shaped notch at equal intervals, and the exhaust port is communicated with the buffer containing cavity, the communicating holes, the strip-shaped notches and the strip-shaped limiting grooves to form a channel capable of dissipating heat of the cable core bundle.

Furthermore, annular notches communicated with the strip-shaped limiting grooves are formed in the outer ring of the insulating sleeve at equal intervals, and each annular notch is communicated with the corresponding side strip-shaped notch.

Furthermore, the inside in buffering appearance chamber is equipped with the elastic support frame that carries out elastic support to its inner wall, and the shaping is equipped with on the elastic support frame with the tapered opening one-to-one and peg graft in corresponding tapered opening inboard and carry out elastic support's bar plug-in connection piece to corresponding tapered opening inner wall, support frame, bar plug-in connection piece are woven by metal material and are formed.

Preferably, the supporting frame and the strip-shaped inserting block are both woven by beryllium bronze materials.

Further, inner sheath and metallic shield layer laminate closely, and the equidistant shaping is equipped with the tip and pegs graft to the inside extension post of oversheath on the outer lane of metallic shield layer, and is equipped with the perforation that supplies to extend the post and pass on the flame retardant coating, and sets up the blind hole that supplies to extend the post and pass on the metallic shield layer, metallic shield layer and rather than integrated into one piece's extension post form can carry out the conduction mechanism that leads to the heat in the exhaust port.

3. Advantageous effects

1. When the cable is extruded, the inner sheath and the adjusting buffer block can be extruded and deformed under the action of external force, so that the cable core bundle is buffered and protected, when the inner sheath and the adjusting buffer block are extruded and deformed, enough deformation space can be provided for the inner sheath and the adjusting buffer block through the buffer cavity, the buffering effect of the inner sheath and the adjusting buffer block on the cable core bundle is improved, the cable core bundle is prevented from being bent and deformed due to the large action of the external force, the cable core bundle is easy to break and break, and the service life of the cable core bundle is shortened.

2. When the adjusting buffer block is extruded to deform, the cable core bundle can extrude the port of the conical opening, the cable core bundle can move slightly in the strip-shaped limiting groove by increasing the size of the port of the conical opening, and partial acting force applied to the cable core bundle can be offset by the slight movement of the cable core bundle in the strip-shaped limiting groove, so that the buffering effect of the adjusting buffer block on the cable core bundle is improved.

3. According to the invention, when the cable core bundle works, heat generated by the cable core bundle can sequentially pass through the strip-shaped limiting groove and the conical opening and enter the buffer cavity, and the metal shielding layer has heat conduction performance, so that the exhaust port can conduct the heat in the buffer cavity to the metal shielding layer, and thus the heat dissipation of the cable core bundle is realized, namely the arrangement of the conical opening not only can buffer and protect the cable core bundle, but also can dissipate the heat of the cable core bundle.

4. According to the invention, heat generated by the cable core bundle can be contained through the strip-shaped notch, the heat in the strip-shaped notch can be transmitted to the inside of the buffer containing cavity through the communicating hole, and finally the heat in the buffer cavity can be transmitted to the metal shielding layer through the metal shielding layer, so that the heat dissipation of the cable core bundle is realized.

5. According to the invention, through the arrangement of the annular notch and the strip-shaped notch, heat generated at each position of the cable core bundle can enter the strip-shaped notch through the annular notch, and the heat is guided and released through the corresponding heat dissipation channel, so that the heat dissipation effect of the cable on the cable core bundle is enhanced.

6. The elastic support frame and the strip-shaped inserting block are respectively contacted with the buffer cavity and the inner wall of the conical opening, so that the elastic support frame and the strip-shaped inserting block can respectively and elastically support the buffer cavity and the conical opening to enhance the buffer protection effect of the adjusting buffer block on a cable core bundle, the elasticity of the elastic support frame and the strip-shaped inserting block can help the adjusting buffer block to quickly reset, and the elastic support frame and the strip-shaped inserting block are woven by metal materials, so that heat entering the buffer cavity and the conical opening can be transmitted through gas and can also be guided and transmitted through metal, the flowing speed of the heat in the cable is increased, and the heat radiation performance of the cable is further enhanced.

7. According to the invention, the metal shielding layer can absorb heat in the buffer cavity due to the characteristics of metal, and the extension column on the metal shielding layer penetrates through the fireproof layer and is inserted into the outer sheath, so that the extension column integrally formed with the metal shielding layer can guide and conduct the heat absorbed on the metal shielding layer to the outer sheath, namely, the heat in the cable can be transmitted to the peripheral circumference of the cable layer by layer through the conduction mechanism, and thus, the efficient heat dissipation of the cable core bundle in the cable is realized.

Drawings

FIG. 1 is a schematic front view of the internal structure of the present invention;

FIG. 2 is a schematic structural view of an elastic support frame;

FIG. 3 is a schematic structural diagram of the connection of the inner sheath and the adjusting buffer block;

FIG. 4 is a schematic view of the internal structure of the adjusting buffer block;

FIG. 5 is a side view of the internal structure of FIG. 4;

fig. 6 is an enlarged schematic view of a portion a in fig. 1.

Reference numerals: 1. an inner sheath; 2. a wire; 3. an insulating sleeve; 31. an annular recess; 4. a metal shielding layer; 5. a fire barrier layer; 6. an outer sheath; 7. adjusting the buffer block; 8. a strip-shaped limiting groove; 9. a buffer chamber; 10. a strip-shaped notch; 11. a communicating hole; 12. an exhaust port; 13. a tapered opening; 14. an elastic support frame; 15. a strip-shaped plugging block; 16. extending the column; 17. perforating; 18. and (4) blind holes.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Examples

As shown in fig. 1, a mine cable with compression resistance function comprises an inner sheath 1, cable core bundles are arranged on the inner side of the inner sheath 1 at equal intervals, a metal shielding layer 4, a fireproof layer 5 and an outer sheath 6 made of polyethylene material are sequentially sleeved on the inner sheath 1, each cable core bundle comprises a wire 2 and an insulating sleeve 3 sleeved on the wire 2, the inner sheath 1 is of a ring-shaped structure, adjusting buffer blocks 7 which correspond to the cable core bundles one by one and respectively buffer and protect the corresponding cable core bundles are formed inside the inner sheath 1, each adjusting buffer block 7 is of a fan-shaped structure, the side walls of every two adjacent adjusting buffer blocks 7 are not in contact, a buffer cavity 9 in a strip-shaped structure is formed between every two adjacent adjusting buffer blocks 7, and all the buffer cavities 9 are arranged on the center of the circle of the inner sheath 1 and form a complete buffer cavity, when the cable is extruded, inner sheath 1, adjust buffer block 7 can be by extrusion deformation under the exogenic action, with this cushion the protection to the cable core bundle, as inner sheath 1, adjust buffer block 7 when being extruded and take place deformation, can give inner sheath 1 through buffer chamber 9, adjust the sufficient deformation space of buffer block 7, with improve inner sheath 1, adjust buffer block 7 to the buffering effect of cable core bundle, it is great to avoid exogenic action, lead to the cable core bundle to take place buckling deformation, and make the cable core bundle fracture easily, the disconnection, the life of cable core bundle has been shortened, inner sheath 1, adjust buffer block 7 and make by rubber materials.

As shown in fig. 3 and 4, each adjusting buffer block 7 is provided with a bar-shaped limiting groove 8 for installing a corresponding cable core bundle, a cone-shaped opening 13 communicated with the corresponding bar-shaped limiting groove 8 is formed in the center of the circle of each adjusting buffer block 7, each bar-shaped limiting groove 8 is provided with a buffer cavity through the corresponding cone-shaped opening 13, when the adjusting buffer block 7 is extruded to deform, the cable core bundle can extrude the port of the cone-shaped opening 13, the size of the port of the cone-shaped opening 13 can be increased at the moment, the cable core bundle can move slightly in the bar-shaped limiting groove 8, the acting force of the cable core bundle on the cable core bundle can be offset by the micro-movement of the cable core bundle in the bar-shaped limiting groove 8, and the buffering effect of the adjusting buffer block 7 on the cable core bundle is improved.

As shown in fig. 3, the inner sheath 1 is provided with exhaust ports 12 at equal intervals, the exhaust ports 12 are in one-to-one correspondence with the buffer cavities 9 and are communicated with the buffer cavities 9, the exhaust ports 12 are communicated with the buffer cavities 9, the conical openings 13 and the strip-shaped limiting grooves 8 to form channels capable of radiating the cable core bundle, heat generated by the cable core bundle during working can sequentially pass through the strip-shaped limiting grooves 8 and the conical openings 13 and enter the buffer cavities 9, the cable core bundle has heat conduction performance through the metal shielding layer 4, and the exhaust ports 12 can conduct the heat inside the buffer cavities 9 to the metal shielding layer 4, so that the cable core bundle is radiated.

As shown in fig. 3, 4 and 5, two strip notches 10 opened on the adjusting buffer block 7 are symmetrically arranged inside each strip-shaped limiting groove 8, and communication holes 11 communicated with the buffer containing cavity are equally spaced on each strip notch 10, the exhaust port 12 is communicated with the buffer containing cavity, the communication holes 11, the strip notches 10 and the strip-shaped limiting grooves 8 and forms a channel capable of dissipating heat of the cable core bundle, heat generated by the cable core bundle can be contained through the strip notches 10, the heat inside the strip notches 10 can be transmitted to the inside of the buffer containing cavity through the communication holes 11, finally, the exhaust port 12 can transmit the heat inside the buffer cavity 9 to the metal shielding layer 4 through the heat conduction performance of the metal shielding layer 4, so as to dissipate heat of the cable core bundle, the strip notches 10 are communicated with the buffer cavity 9 through the tapered openings 13 and the buffer cavity 9 through the communication holes 11, the two channels can simultaneously radiate the cable core bundle, so that the radiating effect of the cable on the cable core bundle is improved.

As shown in fig. 4 and 5, the outer ring of the insulating sleeve 3 is provided with annular notches 31 communicated with the strip-shaped limiting grooves 8 at equal intervals, each annular notch 31 is communicated with the corresponding side strip-shaped notch 10, and through the arrangement of the annular notches 31 communicated with the strip-shaped notches 10, heat generated at each position of the cable core bundle can enter the strip-shaped notches 10 through the annular notches 31 and can be guided and released through the corresponding heat dissipation channels, so that the heat dissipation effect of the cable on the cable core bundle is enhanced.

As shown in fig. 1 and 2, an elastic support frame 14 for elastically supporting the inner wall of the buffer cavity is arranged inside the buffer cavity, a strip-shaped insertion block 15 which is in one-to-one correspondence with the cone-shaped openings 13 and is inserted into the inner side of the corresponding cone-shaped opening 13 and elastically supports the inner wall of the corresponding cone-shaped opening 13 is formed on the elastic support frame 14, the strip-shaped insertion block 15 are both woven by metal materials, the elastic support frame 14 and the strip-shaped insertion block 15 are respectively in contact with the inner walls of the buffer cavity and the cone-shaped opening 13, so that the elastic support frame 14 and the strip-shaped insertion block 15 can respectively and elastically support the buffer cavity and the cone-shaped opening 13 to enhance the buffer protection effect of the adjusting buffer block 7 on the cable core bundle, and the elastic support frame 14 and the strip-shaped insertion block 15 can help to adjust the rapid reset of the buffer block 7, and because the elastic support frame 14 and the strip-shaped insertion block 15 are both woven by metal materials, the heat entering the buffer cavity and the inside of the conical opening 13 can be transmitted through gas and can also be guided and transmitted through metal, so that the flowing speed of the heat inside the cable is improved, the heat dissipation performance of the cable is further enhanced, the support frame 14 and the strip-shaped insertion block 15 are woven by beryllium bronze materials, the beryllium bronze materials have high hardness, elastic limit, fatigue limit, wear resistance, good corrosion resistance and heat conductivity, and the cable has good flexibility and elasticity.

As shown in fig. 1 and 6, the inner sheath 1 and the metal shielding layer 4 are tightly attached, the outer ring of the metal shielding layer 4 is provided with extending columns 16 with ends inserted into the outer sheath 6 at equal intervals, the fireproof layer 5 is provided with through holes 17 for the extending columns 16 to pass through, blind holes 18 for the extending columns 16 to pass through are formed in the metal shielding layer 4, the metal shielding layer 4 and the extending columns 16 integrally formed therewith form a conduction mechanism capable of guiding heat in the exhaust port 12, the metal shielding layer 4 absorbs heat in the buffer cavity 9 due to the characteristics of metal, the extending columns 16 on the metal shielding layer 4 penetrate through the fireproof layer 5 and are inserted into the outer sheath 6, so that the extending columns 16 integrally formed with the metal shielding layer 4 can guide and conduct heat absorbed on the metal shielding layer 4 to the outer sheath 6, that is, the heat in the cable can be transferred to the peripheral ring of the cable layer by layer through the conduction mechanism, therefore, efficient heat dissipation of the cable core bundle inside the cable is achieved.

The specific application process of the mining cable with the pressure-resistant function comprises the following steps: when the cable is used, when the cable is extruded, the cable core bundle can be buffered and protected through the deformation generated by the inner sheath 1 made of rubber materials, the adjusting buffer block 7 and the elastic support frame 14 woven by beryllium bronze materials, and when the cable core bundle in the adjusting buffer block 7 is stressed, the conical opening 13 can be extruded, at the moment, the port of the conical opening 13 can be opened, the cable core bundle can slightly move in the strip-shaped limiting groove 8, the acting force of the cable core bundle on the cable core bundle can be offset through the slight movement of the cable core bundle in the strip-shaped limiting groove 8, so that the buffering effect of the adjusting buffer block 7 on the cable core bundle is improved, the cable core bundle in the strip-shaped limiting groove 8 can be limited through the plug-in connection of the strip-shaped plug-in block 15 and the conical opening 13, so that the cable core bundle can not only slightly move in the strip-shaped limiting groove 8, the cable can be limited in a cavity enclosed between the strip-shaped limiting groove 8 and the conical opening 13, and when the external force of the cable disappears, the cable can be quickly reset through the elasticity of the inner sheath 1, the adjusting buffer block 7 and the elastic support frame 14;

when the cable is used, heat generated at each position of the cable core bundle in the circumferential direction can enter the strip-shaped notches 10 at two sides of the strip-shaped limiting groove 8 through the annular notch 31 by communicating the annular notch 31 with the strip-shaped limiting groove 8, the heat in the strip-shaped notch 10 can be transmitted to the inside of the buffer cavity 9 through the communicating hole 11, meanwhile, the heat in the strip-shaped limiting groove 8 can be transmitted to the inside of the buffer cavity 9 through the conical opening 13, then the heat in the buffer cavity 9 can be transmitted to the metal shielding layer 4 through the exhaust port 12, the heat absorbed on the metal shielding layer 4 can be guided and transmitted to the outer sheath 6 through the extending column 16 integrally formed with the metal shielding layer 4, so that the heat in the cable can be transmitted to the peripheral circumference of the cable layer by layer, and the efficient heat dissipation of the cable core bundle in the cable can be realized, this completes the use of the cable.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.