阅读说明：本技术 一种热固性树脂复合材料的阻燃耐高温橡套软电缆 (Flame-retardant high-temperature-resistant rubber jacketed flexible cable made of thermosetting resin composite material ) 是由 李万松 叶磊 李兵 于 2021-06-15 设计创作，主要内容包括：本发明公开了一种热固性树脂复合材料的阻燃耐高温橡套软电缆,属于电缆领域,包括动力芯导体、动力芯绝缘、金属编织屏蔽、内护套和外护套,所述动力芯导体外表面由内到外依次包覆有动力芯绝缘和金属编织屏蔽,所述内护套和外护套之间设有阻燃耐高温层,所述阻燃耐高温层内侧呈环形设有弧形吸水棉,所述弧形吸水棉上设有集水架,所述集水架任意一个相邻之间均设有支撑件,所述支撑件外侧嵌有柔性胶条。本发明通过设置集水架、疏水槽、弧形吸水棉和支撑件,能够有效避免了水份渗入电缆的缆芯,而导致电缆的使用寿命降低的情况发生,能够起到提高电缆防水性能的效果。(The invention discloses a flame-retardant high-temperature-resistant rubber jacketed flexible cable made of a thermosetting resin composite material, which belongs to the field of cables and comprises a power core conductor, a power core insulator, a metal braided shield, an inner jacket and an outer jacket, wherein the power core insulator and the metal braided shield are sequentially coated on the outer surface of the power core conductor from inside to outside, a flame-retardant high-temperature-resistant layer is arranged between the inner jacket and the outer jacket, arc-shaped water-absorbing cotton is annularly arranged on the inner side of the flame-retardant high-temperature-resistant layer, a water collecting frame is arranged on the arc-shaped water-absorbing cotton, a supporting piece is arranged between any two adjacent water collecting frames, and a flexible adhesive tape is embedded on the outer side of the supporting piece. According to the invention, by arranging the water collecting frame, the drainage groove, the arc-shaped water absorption cotton and the supporting piece, the situation that the service life of the cable is reduced due to the fact that moisture permeates into the cable core of the cable can be effectively avoided, and the effect of improving the waterproof performance of the cable can be achieved.)

1. The utility model provides a thermosetting resin combined material's fire-retardant high temperature resistant rubber cover flexible cable, includes power core conductor (1), power core insulation (2), metal woven shield (3), inner sheath (5) and oversheath (12), its characterized in that: the power core conductor (1) surface has power core insulation (2) and metal woven shield (3) by interior cladding in proper order to outer, be equipped with fire-retardant high temperature resistant layer (11) between inner sheath (5) and oversheath (12), fire-retardant high temperature resistant layer (11) inboard is the annular and is equipped with arc cotton (9) that absorb water, the arc is equipped with on cotton (9) that absorbs water and catchments frame (7), it all is equipped with support piece (4) between arbitrary one is adjacent to catchment frame (7), flexible adhesive tape (13) have been inlayed in support piece (4) outside.

2. The thermosetting resin composite material flame-retardant high-temperature-resistant rubber jacketed flexible cable according to claim 1, characterized in that the flame-retardant high-temperature-resistant layer (11) is made of polytetrafluoroethylene, carbon fiber, polyvinyl chloride, polyether ether ketone, glass fiber and adhesive.

3. The cable of claim 2, wherein the inner sheath (5) has glass fiber filler (6) inside, and the glass fiber filler (6) is filled only between any adjacent water collection shelves (7).

4. The cable of claim 1, wherein the flexible rubber strip (13) is in contact with the inner sheath (5).

5. The thermosetting resin composite material flame-retardant high-temperature-resistant cabtyre flexible cable according to claim 1, wherein the power core conductor (1) is clamped between any adjacent water collecting frames (7) through a support member (4).

6. The thermosetting resin composite material flame-retardant high-temperature-resistant cabtyre cable according to claim 1, wherein the water-collecting rack (7) is provided with a hollow groove (8) in the middle.

7. The flame-retardant high-temperature-resistant rubber jacketed flexible cable made of the thermosetting resin composite material as claimed in claim 1, wherein the outer side surface of the arc-shaped water-absorbing cotton (9) is uniformly provided with water drainage grooves (10) along the direction of the central line of the cable.

Technical Field

The invention relates to the field of cables, in particular to a flame-retardant high-temperature-resistant rubber jacketed flexible cable made of a thermosetting resin composite material.

Background

A cable, made of one or more mutually insulated conductors and an outer insulating sheath, transmits power or information from one point to another. Each group of wires is insulated from each other and is often twisted around a center, with a highly insulating coating covering the entire outside. The cable has the characteristics of internal electrification and external insulation. The thermosetting resin-based composite material is a composite material formed by taking various thermosetting resins as a matrix and adding various reinforcing fibers. The reinforcing fibers improve the strength and rigidity of the composite material, and the resin bonds the fibers into a whole to transfer load between the reinforcing fibers. In addition, the toughness, interlaminar shear strength, compressive strength, thermal stability, oxidation resistance, moisture absorption performance and molding processability of the composite material are also mainly determined by the resin matrix.

The existing thermosetting resin composite material cable is good in flame-retardant high-temperature resistance, but poor in waterproof performance, the cable for a coal mining machine is relatively poor in service environment, the requirement on the waterproof performance of the cable is high, and in order to improve the waterproof performance of the cable, the flame-retardant high-temperature-resistant rubber jacketed flexible cable made of the thermosetting resin composite material is provided.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to provide a flame-retardant high-temperature-resistant rubber jacketed flexible cable made of a thermosetting resin composite material, which can effectively solve the problem of the reduction of the service life of the cable caused by water seepage of the cable.

2. Technical scheme

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

the utility model provides a thermosetting resin combined material's fire-retardant high temperature resistant rubber cover flexible cable, includes power core conductor, power core insulation, metal woven shield, inner sheath and oversheath, power core conductor surface by interior outside to in proper order the cladding have power core insulation and metal woven shield, be equipped with fire-retardant high temperature resistant layer between inner sheath and the oversheath, fire-retardant high temperature resistant in situ side is the annular and is equipped with the arc cotton that absorbs water, the arc is absorbed water and is equipped with the frame that catchments on the cotton, it all is equipped with support piece to catchment between the arbitrary one of frame is adjacent, flexible adhesive tape has been inlayed in the support piece outside.

Preferably, the raw materials of the flame-retardant high-temperature-resistant layer comprise polytetrafluoroethylene, carbon fibers, polyvinyl chloride, polyether ether ketone, glass fibers and a binder.

Preferably, the inner sheath is internally provided with glass fiber filler, and the glass fiber filler is filled only between any adjacent water collecting frames.

Preferably, the flexible strip contacts the inner sheath.

Preferably, the power core conductor is clamped between any adjacent water collecting frames through the supporting piece.

Preferably, the middle part of the water collecting frame is provided with a hollow groove.

Preferably, the outer side surface of the arc-shaped water absorption cotton is uniformly provided with a drainage groove along the direction of the central line of the cable.

3. Advantageous effects

(1) According to the invention, by arranging the water collecting frame, the drainage groove, the arc-shaped water absorption cotton and the supporting piece, when the cable is arranged in a severe environment, the cable is easy to enter water under a long-term condition because the cable is soaked in water, and most of water is absorbed by the arc-shaped water absorption cotton and the water collecting frame after the cable enters water, so that when the cable is dragged, the water collected in the arc-shaped water absorption cotton and the water collecting frame is extruded and is discharged outwards again, the situation that the service life of the cable is shortened due to the fact that the water permeates into the cable core of the cable is effectively avoided, and the effect of improving the waterproof performance of the cable can be achieved.

(2) According to the invention, the power core conductor is arranged between the adjacent water collecting frames, and the support piece and the flexible rubber strip are matched to limit the power core conductor, so that the stability of the power core conductor is improved, and the hollow groove and the water collecting frames greatly improve the anti-extrusion performance of the cable.

(3) According to the invention, the flame-retardant and high-temperature-resistant characteristics of the cable can be improved by arranging the flame-retardant and high-temperature-resistant layer and mixing the thermosetting resin and various composite materials.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the arc-shaped absorbent cotton of the present invention;

FIG. 3 is a schematic view of the connection between the arc-shaped absorbent cotton and the water collecting frame;

FIG. 4 is a schematic view of the clamping of the support member and the flexible adhesive strip of the present invention.

Reference numerals: 1. a power core conductor; 2. insulating the power core; 3. metal braided shielding; 4. a support member; 5. an inner sheath; 6. a glass fiber filler; 7. a water collecting rack; 8. a hollow groove; 9. arc-shaped absorbent cotton; 10. a drainage tank; 11. a flame retardant high temperature resistant layer; 12. an outer sheath; 13. a flexible adhesive strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention is shown: the utility model provides a thermosetting resin composite's fire-retardant high temperature resistant rubber cover flexible cable, includes power core conductor 1, power core insulation 2, metal woven shield 3, inner sheath 5 and oversheath 12, there is glass fiber filler 6 inner side of inner sheath 5, glass fiber filler 6 only fills between arbitrary adjacent water collecting rack 7. The quantity of frame 7 and support piece 4 catchments equals, and catchment frame 7 and support piece 4 crossing arrangement, support piece 4 and catchment frame 7 formation are to power core conductor 1 stable restriction, receive the extrusion or draw the in-process at the cable, and hollow groove 8 and the pliability of frame 7 itself catchments can improve the anti extrusion performance of cable, power core conductor 1 surface has power core insulation 2 and metal woven shield 3 by inside to outside cladding in proper order, be equipped with fire-retardant high temperature resistant layer 11 between inner sheath 5 and the oversheath 12, fire-retardant high temperature resistant layer 11's raw materials includes polytetrafluoroethylene, carbon fiber, polyvinyl chloride, polyether ether ketone, glass fiber and adhesive composition. Specifically, 10-20 parts of polytetrafluoroethylene, 5-8 parts of carbon fiber, 10-15 parts of polyether ether ketone, 10-25 parts of glass fiber and 1-2 parts of adhesive, wherein the polytetrafluoroethylene has the characteristics of acid resistance, alkali resistance, various organic solvents resistance, high temperature resistance and the like, has a melting point as high as 327 ℃, can be stably used for a long time at-180-250 ℃, and can be used as one of composite materials of the flame-retardant high-temperature-resistant layer 11 to improve the flame retardance, high temperature resistance and corrosion resistance of the cable;

the fire-retardant high temperature resistant layer 11 inboard is the annular and is equipped with the arc cotton 9 that absorbs water, the arc cotton 9 that absorbs water evenly locates the inner sheath 5 outside, adjacent arc absorbs water and is equipped with between the cotton 9 and catchments frame 7, it locates between power core conductor 1 to catchment frame 7, and catchment frame 7 is the circular arc that sets up around its middle part symmetry, through locating adjacent frame 7 that catchments with power core conductor 1 to cooperation support piece 4 is to power core conductor 1 restriction, has improved power core conductor 1's stability, and well chute 8 with catch water frame 7, makes the anti extrusion performance of cable obtain very big improvement, the cotton 9 lateral surfaces that absorb water of arc evenly are equipped with hydrophobic groove 10 along the cable central line direction. Set up hydrophobic trough 10, can absorb cotton 9 adsorbed unnecessary moisture content with the arc and leading-in to the frame 7 that catchments, the arc is absorbed and is equipped with the frame 7 that catchments on cotton 9, it is equipped with hollow groove 8 to catchment frame 7 middle part. Support piece 4 all is equipped with between the frame of catchmenting 7 arbitrary is adjacent, support piece 4 is approximate "T" font, and support piece 4's outer tip and the cotton 9 contact of arc water absorption, and support piece 4 locates the middle part of the cotton 9 of arc water absorption, sets up support piece 4, and when the cable received to drag, through support piece 4 and the setting of frame of catchmenting 7, can play the effect of protection power core conductor 1, provide the effect of resisting cable pulling force, flexible adhesive tape 13 has been inlayed in the support piece 4 outside. Flexible adhesive tape 13, for the rubber material, through setting up flexible adhesive tape 13, can make support piece 4 and arc cotton 9 area of contact that absorbs water less, because support piece 4 locates the middle part that the arc cotton 9 that absorbs water, can absorb water the moisture content that gets into the cable from the arc cotton 9 that absorbs water to the leading-in to the frame 7 that catchments of both sides in, because the frame 7 that catchments takes shape processing as an organic whole, its water storage capacity is big, and can effectively protect power core conductor 1, flexible adhesive tape 13 and inner sheath 5 contact. The power core conductor 1 is clamped between any adjacent water collecting frames 7 through the supporting piece 4.

The working principle is as follows: this kind of thermosetting resin composite's fire-retardant high temperature resistant rubber cover flexible cable, during the use, the cable is under abominable environment, the one side of cable and ground contact, easy infiltration water, through the effect of the cotton 9 of arc water absorption, the cable is after getting into water, absorb the moisture content to most through the cotton 9 of arc water absorption and the frame 7 that catchments earlier, when the cable receives to pull, collect in the cotton 9 of arc water absorption and the moisture content that catchments in the frame 7, receive the extrusion, discharge to the outside once more, because it is the integrated into one piece processing to catchment frame 7, its water storage capacity is big, and can effectively protect the cable core of cable, the life of cable has been ensured.

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.