CN213303693U

CN213303693U - Tensile bending-resistant flexible cable

Info

Publication number: CN213303693U
Application number: CN202022539192.7U
Authority: CN
Inventors: 孙勇; 郑少德; 巫后霞
Original assignee: Anhui Haiyuan Special Cable Co ltd
Current assignee: Anhui Haiyuan Special Cable Co ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-05-28
Anticipated expiration: 2030-11-05

Abstract

The utility model provides a resistant crooked flexible cable of tensile, including conductor and oversheath, the conductor is crowded outward and is wrapped the insulating layer and constitute insulation core, and a plurality of insulation core strands into the cable core, the center packing of cable core has the filler strip, be provided with a plurality of high elasticity anti-pressure stick in the oversheath, a plurality of high elasticity anti-pressure stick use the cable core as the center along circumference direction evenly arranged, the crescent structure of high elasticity anti-pressure stick for seting up the arc recess, and the crooked radian of the arc recess of this crescent structure is unanimous with the peripheral radian of high elasticity anti-pressure stick, and two adjacent high elasticity anti-pressure sticks pass through arc recess butt, the interior cambered surface of arc recess inlays and is equipped with the heliciform arc wall, and the spring cup joints in the heliciform arc wall to contact with the extrados of adjacent high elasticity anti-.

Description

Tensile bending-resistant flexible cable

Technical Field

The utility model relates to a wire and cable technical field indicates a resistant crooked flexible cable of tensile especially.

Background

The flexible bending-resistant cable is widely applied, is commonly used in elevators, cranes, festoon systems and towline systems, and belongs to the field of special cables. With the wide application of high-speed elevators and high-speed cranes, higher requirements are provided for the bending resistance, the wear resistance, the mechanical strength, the flexibility, the load and the like of cables, the traditional flexible bending-resistant cables are used in the original working occasions, the normal service life of the traditional flexible bending-resistant cables is generally more than 24 months, after the traditional flexible bending-resistant cables are used in high-speed lifting occasions, the distortion and the sheath cracking are easy, the probability and the frequency of core breakage of an insulated wire core are greatly increased, even the distortion and the deformation occur after some flexible bending-resistant cables are put into use for 2-3 months, the service life is seriously shortened, and great troubles and economic losses are brought to users. Therefore, the utility model provides a resistant crooked flexible cable of tensile to solve the problem that above-mentioned exists.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's shortcoming, provide a resistant crooked flexible cable of tensile.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a resistant crooked flexible cable of tensile, includes conductor and oversheath, the conductor is crowded outward and is wrapped the insulating layer and constitute insulation core, and a plurality of insulation core strands into the cable core, the center packing of cable core has the filler strip, be provided with a plurality of high elasticity anti-pressure stick in the oversheath, a plurality of high elasticity anti-pressure stick use the cable core as the center along circumference direction evenly arranged, the crescent structure of arc recess is offered to high elasticity anti-pressure stick, and the crooked radian of the arc recess of this crescent structure is unanimous with the peripheral radian of high elasticity anti-pressure stick, and two adjacent high elasticity anti-pressure sticks pass through arc recess butt, the interior cambered surface of arc recess inlays and is equipped with the heliciform arc wall, and the spring cup joints in the heliciform arc wall to contact with the extrados of adjacent high.

As an optimal technical scheme, the lateral surface of oversheath is equipped with the wear-resisting arch of a plurality of tensile, and the tensile reinforcement silk is filled at the wear-resisting bellied center of a plurality of tensile, and the wear-resisting arch of a plurality of tensile uses the cable core as center along circumference direction evenly arranged.

As an optimal technical scheme of the utility model, the filler strip adopts PVC filler material to make, and aramid fiber line is placed at the center of this filler strip.

As a preferred technical scheme of the utility model, aramid yarn is twisted by 3000 denier long fine single strand twist aramid yarn and forms, and 3000 denier long fine single strand twist aramid yarn's strand number is not less than 3 strands.

As an optimized technical scheme of the utility model, a plurality of high elasticity is anti-pressure stick is high-elastic rubber core, and aramid fiber silk is filled at its center.

As a preferred technical solution of the present invention, the outer sheath is made of a matte TPE elastomer; the insulating layer is made of TPU material.

As an optimized technical scheme of the utility model, the conductor adopts 6 th conductor structure.

As an optimized technical proposal of the utility model, a liquid isolating agent is coated between the insulating layer and the outer sheath.

The utility model discloses the beneficial effect who reaches is: the utility model provides a tensile bending-resistant flexible cable, which has the characteristics of high tensile strength, easy bending and bending resistance by improving the cable structure and the material; and then through a plurality of high-elasticity pressure-resistant rods and springs arranged in the outer sheath, under the action of external force, the springs are in an arc-shaped bending state, so that the cables are bent in an arc shape, the local small-angle bending of the cables is avoided, the problem of structural extrusion at the small-angle bending positions of the cables is prevented, the flexibility, the weather resistance and the mechanical strength of the cables are improved, and the service life of the cables is prolonged.

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

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

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

FIG. 2 is a connection diagram of a plurality of high elasticity compression resistant rods of the present invention;

FIG. 3 is a schematic view of the structure of the high elasticity compression resistant rod of the present invention;

FIG. 4 is a schematic view of the spring structure of the present invention;

reference numbers in the figures: 1. a conductor; 2. an outer sheath; 3. an insulating layer; 4. filling the strip; 5. a high elastic pressure resistant rod; 6. an arc-shaped groove; 7. a helical arc-shaped groove; 8. a spring; 9. a tensile wear-resistant bulge; 10. a tensile reinforcement wire; 11. aramid fiber yarn.

Detailed Description

The terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like in the specification indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b): as shown in fig. 1-4, the utility model provides a tensile bending-resistant flexible cable, which comprises a conductor 1 and an outer sheath 2, wherein the conductor 1 is externally extruded with an insulating layer 3 to form an insulating wire core, a plurality of insulating wire cores are twisted into a cable core, the center of the cable core is filled with a filler strip 4, a plurality of high-elasticity pressure-resistant rods 5 are arranged in the outer sheath 2, the high-elasticity pressure-resistant rods 5 are uniformly arranged along the circumferential direction by taking the cable core as the center, the high-elasticity pressure-resistant rods 5 are crescent structures provided with arc-shaped grooves 6, the bending radian of the arc-shaped grooves 6 of the crescent structures is consistent with the peripheral radian of the high-elasticity pressure-resistant rods 5, two adjacent high-elasticity pressure-resistant rods 5 are abutted against each other through the arc-shaped grooves 6, the inner arc surface of the arc-shaped grooves 6 is embedded with spiral arc-shaped grooves 7, springs 8 are sleeved in the spiral arc-, the spring 8 has the arc-shaped bending characteristic under the action of external force, so that the cable can be in arc-shaped bending under the action of external force, local small-angle bending of the cable is avoided, the problem of structural extrusion at the small-angle bending part of the cable is solved, the flexibility, the weather resistance and the mechanical strength of the cable are improved, and the service life of the cable is prolonged.

Furthermore, the outer side surface of the outer sheath 2 is provided with a plurality of tensile wear-resistant protrusions 9, tensile reinforcing wires 10 are filled in the centers of the tensile wear-resistant protrusions 9, the tensile wear-resistant protrusions 9 are evenly distributed in the circumferential direction by taking the cable core as the center, and the tensile property of the cable can be improved.

Further, filler strip 4 adopts PVC filler material to make, and aramid fiber line is placed at the center of this filler strip 4, and the structural stability of the inside cable core of cable can be improved in setting up of filler strip 4, reduces the tensile force that insulating core received, strengthens whole compliance, structural stability, the circularity of cable core to make the cable core have better bending resistance and resistant torsional properties.

Further, the aramid fiber line is formed by twisting 3000 denier long-fiber single-strand twisted aramid fiber yarns, the number of strands of the 3000 denier long-fiber single-strand twisted aramid fiber yarns is not less than 3, and the arrangement of the aramid fiber line improves the load-carrying capacity of the filling strip 4.

Furthermore, a plurality of the high-elasticity anti-pressure rods 5 are high-elasticity rubber cores, and aramid fibers 11 are filled in the centers of the high-elasticity anti-pressure rods, so that the flexibility and the bending property of the cable are improved.

Further, the outer sheath 2 is made of a matte TPE elastomer, the TPE elastomer is a sheath material with extremely high tensile strength, tear strength, excellent wear resistance, aging resistance and resilience, and the matte TPE elastomer can eliminate optical pollution of the cable; the insulating layer 3 is made of TPU material, and the tensile property of the TPU material is good.

Further, the conductor 1 adopts a conductor structure of type 6.

Furthermore, a liquid isolating agent is coated between the insulating layer 3 and the outer sheath 2, so that relative sliding between the insulated wire cores is facilitated, and the sliding compensation balance of the wire cores in the bending process is ensured, so that the bending resistance of the cable core is further improved.

The above embodiments are merely to describe the preferred embodiments of the present invention, and are not to limit the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.

The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.

Claims

1. The tensile bending-resistant flexible cable is characterized by comprising a conductor (1) and an outer sheath (2), wherein an insulating layer (3) is extruded outside the conductor (1) to form an insulating wire core, a plurality of insulating wire cores are twisted into a cable core, a filling strip (4) is filled in the center of the cable core, a plurality of high-elasticity pressure-resistant rods (5) are arranged in the outer sheath (2), the plurality of high-elasticity pressure-resistant rods (5) are uniformly arranged along the circumferential direction by taking the cable core as the center, the high-elasticity pressure-resistant rods (5) are of a crescent structure provided with arc-shaped grooves (6), the bending radian of the arc-shaped grooves (6) of the crescent structure is consistent with the peripheral radian of the high-elasticity pressure-resistant rods (5), two adjacent high-elasticity pressure-resistant rods (5) are abutted through the arc-shaped grooves (6), the inner arc surfaces of the arc-shaped grooves (6) are embedded with spiral arc-shaped grooves (7), and springs (8), and is contacted with the outer cambered surface of the adjacent high-elasticity pressure-resistant rod (5).

2. The tensile and bending-resistant flexible cable as claimed in claim 1, wherein a plurality of tensile and wear-resistant protrusions (9) are arranged on the outer side surface of the outer sheath (2), tensile reinforcing wires (10) are filled in the centers of the tensile and wear-resistant protrusions (9), and the tensile and wear-resistant protrusions (9) are uniformly arranged in the circumferential direction by taking the cable core as the center.

3. A tensile and bending resistant flexible cable as claimed in claim 1, wherein the filler strip (4) is made of PVC filler material, and aramid yarn is placed in the center of the filler strip (4).

4. The tensile and bending resistant flexible cable as claimed in claim 3, wherein the aramid yarn is formed by stranding 3000 denier filament single-twist aramid yarns, and the number of strands of 3000 denier filament single-twist aramid yarns is not less than 3.

5. A tensile and bending resistant flexible cable as claimed in claim 1, wherein a plurality of said high elastic compression bars (5) are high elastic rubber cores with aramid filaments (11) filled in the center.

6. A tensile and bend resistant flexible cable as claimed in claim 1, wherein said outer sheath (2) is made of a matt TPE elastomer; the insulating layer (3) is made of TPU material.

7. A tensile bend-resistant flexible cable as claimed in claim 1, wherein said conductor (1) adopts a type 6 conductor structure.

8. A tensile bend-resistant flexible cable as claimed in claim 1, wherein a liquid release agent is applied between the insulating layer (3) and the outer sheath (2).