CN219370646U - Drag chain cable - Google Patents

Abstract

The application discloses tow chain cable relates to cable technical field, wherein, includes: a cable core, the cable core further comprising: the first heart yearn, the heart yearn is cyclic annular equidistance and arranges, first heart yearn still includes: a conductor provided in the center of the first core wire; an insulating material I, wherein the insulating material I is extruded on the outer layer of the conductor; the second core wire is arranged in the center of the cable core, the second core wire is arranged into a group, the first core wire is coated with two annular structures of six groups and twelve groups, and the second core wire further comprises: a first filling, which is arranged in the center of the second core wire; the second insulating material is used for coating the first filling; an inner sheath coating the cable core; and the outer protective layer is used for extruding and wrapping the cable core and the inner protective layer. The method solves the problem that the maximum tensile force of the drag chain cable which can bear in operation is less than 10kN, and the tensile property of the drag chain cable is seriously affected.

Description

Drag chain cable

Technical Field

The application relates to the technical field of cables, in particular to a drag chain cable.

Background

In the occasion that the equipment unit needs to move back and forth, in order to prevent the cable from entanglement, abrasion, pull-off and scattering, the cable is often put into a cable drag chain to protect the cable, and the cable can also move back and forth along with the drag chain, so that the high-flexibility special cable which can move back and forth along with the drag chain and is difficult to abrade is called a drag chain cable, and the cable can also be called a drag cable and a tank chain cable.

With the rapid development of the industrial field in China, the application of the drag chain cable is more and more extensive, and the quality and the performance of the drag chain cable are fully improved. In the past, the technology of China in the aspect of drag chain cables is very deficient, the corresponding requirements cannot be met in all aspects, the fault connection can only be dependent on import cables when in use, but the cost of the import cables is too high, and the ordering period is too long. Therefore, in recent years, domestic cable manufacturers are continuously innovating and updating technology to replace imported cables, but the maximum tensile force bearable by the drag chain cable in operation cannot reach 10kN, and the tensile property of the drag chain cable is seriously affected.

In view of this, there is provided a drag chain cable which can withstand a maximum tensile force exceeding 10kN and is excellent in tensile properties.

Disclosure of Invention

The purpose of the application is to solve the problem that the maximum tensile force bearable in operation of the drag chain cable cannot reach 10kN and seriously affects the tensile property of the drag chain cable, and to solve the technical problem, the application provides the drag chain cable with the maximum tensile force bearable exceeding 10kN and excellent tensile property.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical scheme: a drag chain cable comprising: the cable core, the cable core still includes: first heart yearn, heart yearn are cyclic annular equidistance and arrange, and first heart yearn still includes: a conductor disposed in the center of the first core wire; the first insulating material is extruded on the outer layer of the conductor; core wire two sets up in the central authorities of cable core, and core wire two sets up to one set of, and core wire one adopts six groups to add two annular structures cladding core wire two of twelve groups, and core wire two still includes: the first filling is arranged in the center of the second core wire; the second insulating material is filled with the first insulating material coating; the inner protection layer is used for coating the cable core; the outer sheath is used for extruding the cable core and the inner sheath.

Further, according to an embodiment of the present application, the inner sheath further includes an inner sheath, a shielding one and a tape one.

Further, according to an embodiment of the present application, wherein the inner jacket is extruded over the outer layer of the cable core.

Further, in accordance with embodiments of the present application, a shield inner jacket is braided with a particular spindle configuration for the shield.

Further, according to an embodiment of the present application, the first strap is wrapped around the first shield.

Further, according to an embodiment of the present application, the first core wire is identical to the second core wire in outer diameter.

Further, according to an embodiment of the present application, the conductor is a high-flexibility multi-strand copper conductor, and the insulating material is ETFE.

Further, according to an embodiment of the present application, the first filling is filled with cotton ropes, and the second insulating material is ETFE material.

Further, according to the embodiment of the application, the inner sheath is made of TPV material, the shielding is made of tinned copper wire material, and the wrapping band is made of non-woven fabric.

Further, according to an embodiment of the present application, the outer sheath is a PUR outer sheath.

Compared with the prior art, the cable has the advantages that the structural design that the second core wire in the cable core is filled with the second extrusion coating insulating material meets the excellent tensile property of the drag chain cable in the round trip use process, the first core wire in the cable core and the second core wire are twisted into the cable through the structural design of 1+6+12 and then the inner protection layer is extruded, the cable structural design can ensure that the drag chain cable can bear certain tensile force, the problem that the maximum tensile force bearable by the drag chain cable in operation cannot reach 10kN and seriously affects the tensile property of the drag chain cable is solved, and the better effect that the maximum tensile force bearable by the drag chain cable exceeds 10kN and the tensile property is excellent is achieved.

Drawings

The present application is further described below with reference to the drawings and examples.

Fig. 1 is a schematic cross-sectional view of a drag chain cable according to embodiment 1 of the present application.

Fig. 2 is a schematic structural view of a drag chain cable core according to embodiment 1 of the present application.

Fig. 3 is a schematic structural diagram of an inner sheath of a drag chain cable according to embodiment 1 of the present application.

Fig. 4 is a schematic structural view of a drag chain cable according to embodiment 2 of the present application.

Fig. 5 is a schematic structural view of a drag chain cable according to embodiment 3 of the present application.

In the accompanying drawings

1. Cable core 11, core wire 111, conductor

112. Insulating material one 12, core wire two 121, and filling one

122. Insulating material II 2, inner protective layer 21 and inner sheath

22. Shielding one 23, belting one 3 and outer protective layer

24. Shield two 25, reinforcing core 4 and protective sleeve

Detailed Description

In order to make the objects, technical solutions, and advantages of the present utility model more apparent, the embodiments of the present utility model will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present utility model, are intended to be illustrative only and not limiting of the embodiments of the present utility model, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.

In the description of the present utility model, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "a," an, "" the first, "" the second, "" the third, "" the fourth, "" the fifth, "and the sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

For purposes of brevity and description, the principles of the embodiments are described primarily by reference to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one of ordinary skill in the art that the embodiments may be practiced without limitation to these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

Example 1:

as shown in fig. 1 to 3, the present embodiment provides a drag chain cable, which includes: the cable core 1, the cable core 1 further comprises: the first core wire 11, the first core wire 11 is circular equidistant arranged, and the first core wire 11 further comprises: a conductor 111, the conductor 111 being disposed in the center of the first core wire 11; an insulating material one 112, wherein the insulating material one 112 is extruded on the outer layer of the conductor 111; core wire two 12, core wire two 12 sets up in the central authorities of cable core 1, and core wire two 12 sets up into one set of, and core wire one 11 adopts six sets of two annular structures cladding core wire two 12 of twelve sets of additional, and core wire two 12 still include: a filler one 121, the filler one 121 being disposed in the center of the core wire two 12; the second insulating material 122, the second insulating material 122 is coated and filled with the first 121; the inner protection layer 2, the inner protection layer 2 coats the cable core 1; the outer sheath 3, the outer sheath 3 is extruded to cover the cable core 1 and the inner sheath 2.

The inner protective layer 2 further comprises an inner protective sleeve 21, a shielding first 22 and a wrapping tape first 23, wherein the inner protective sleeve 21 is extruded on the outer layer of the cable core 1, the shielding first 22 is formed by braiding the shielding inner protective sleeve 21 by adopting a special spindle structure, and the wrapping tape first 23 wraps the shielding first 22.

The outer diameters of the first core wire 11 and the second core wire 12 are consistent, in the cabling process of the first core wire 11 and the second core wire 12, the roundness of the drag chain cable is guaranteed, the cable core 1 is prevented from being dissociated to the central area of the drag chain cable, meanwhile, the excellent tensile property of the drag chain cable in the round trip use process is met, and the maximum bearable tensile force of the drag chain cable exceeds 10kN.

The conductor 111 adopts a high-softness multi-strand copper conductor, has good softness and long bending-resistant service life, can ensure stable transmission of electrical properties of the drag chain cable, adopts an ETFE (Ethylene-tetrafluoroethylene copolymer) material as the first insulating material 112, has high insulating strength, high resistivity and low dielectric loss factor, is basically constant under the condition of frequency and temperature change, is an excellent electrical insulating material, and has the advantages of excellent high impact strength, high tensile strength, high wear resistance, special heat resistance, low friction coefficient and the like, ensures the signal transmission capability and good service life of the drag chain cable in continuous reciprocating motion, and can bear the maximum tensile force of more than 10kN in the operation process, thereby achieving the good effect of excellent tensile property.

The first filler 121 is filled with cotton rope, and the second insulating material 122 is an ETFE (Ethylene-tetra-fluoro-Ethylene, ethylene-tetrafluoroethylene copolymer) material. The second core wire 12 adopts the structural design of the first insulating material 122 for extrusion filling of the first 121, the outer diameters of the second extruded core wire 12 and the first core wire 11 are consistent, the roundness of the cable is guaranteed in the cabling process, the second core wire 12 is prevented from being free to the central area of the cable, meanwhile, the excellent mechanical property of the second insulating material 122 meets the excellent tensile property of the cable in the round trip use process, and the good effect that the maximum tensile force bearable by the drag chain cable exceeds 10kN and the tensile property is excellent is achieved.

The inner sheath 21 is made of TPV (Thermoplastic Vulcanizate, thermoplastic vulcanized rubber) material, the TPV has the excellent performances of high elasticity, aging resistance and oil resistance of the traditional crosslinked vulcanized rubber, and has the characteristics of convenient processing and wide processing mode of common plastics, and the TPV has the main characteristics that: the ageing resistance is very good and the weather resistance and the heat resistance are good; the anti-deformation performance and the anti-dynamic fatigue performance are excellent; the tensile strength is very high, the toughness is high, and the rebound resilience is very good; excellent environmental protection performance and reusability; the insulating property is also achieved; the hardness range is wide; the application temperature range is wide.

After the towline cable is twisted into a cable by adopting the structural design of 1+6+12, an inner sheath 21 is extruded outside the cable core, and the cable core 1 is simultaneously passed through a talcum powder machine before entering an extrusion die, so that the cable core 1 is prevented from being adhered to the inner sheath 21.

The first shielding layer 22 is made of tinned copper wires, a layer of tinned copper wires with the weaving density being more than or equal to 85% is woven outside the inner sheath 21 according to the outer diameter of the towline cable after the inner sheath 21 is extruded, so that the towline cable has strong external electromagnetic interference resistance, stable data and signal transmission is ensured, and the method is particularly suitable for occasions with high requirements for resisting electromagnetic interference.

The first bag strap 23 adopts a non-woven fabric bag strap, and a layer of non-woven fabric bag strap is pulled out of the woven shielding, so that the sheath is prevented from being adhered to the woven wires, the shielding layer or the sheath layer is prevented from being damaged, the good anti-interference performance and the excellent service life of the cable in the operation process are ensured, and the cable can bear the maximum tensile force exceeding 10kN.

The outer sheath 3 is made of PUR (Polyurethane) outer sheath, and the material has the advantages of excellent oil resistance, good toughness, wear resistance, cold resistance, water resistance, ageing resistance, acid and alkali resistance, weather resistance, long service life, ultraviolet resistance, high mechanical strength and oxidation stability, high flexibility and rebound resilience, extremely excellent oil resistance, wear resistance, water resistance, moisture resistance, ultraviolet resistance, weather resistance, flexibility maintenance and the like, and provides safety guarantee for the cable in severe conditions.

As shown in Table 1, the drag chain cable of the present application can withstand the maximum tensile force and the cable state after a plurality of tests, and has better effect than the common drag chain cable.

	Movable mounting temperature range	Minimum radius of curvature	Can bear the maximum tensile force	Cable status
					Ordinary drag chain cable	-5℃～+70℃	7.5 times of cable external diameter	8～10KN	Attention state
Example 1 towline cable	-10℃～+70℃	7.5 times of cable external diameter	>10KN	Normal state

TABLE 1

Example 2:

this embodiment provides a drag chain cable having the same structural features as embodiment 1.

As shown in fig. 4, the inner sheath 2 further includes a second shielding 24 and a reinforcing core 25, the second shielding 24 is used for weaving the shielding cable core 1, the reinforcing core 25 is annularly arranged around the second shielding 24, the reinforcing core 25 is reasonably distributed with a pitch, and the inner sheath 21 is used for extruding the outer layer of the reinforcing core 25.

The second shielding 24 is made of tin-plated copper wires, so that the towline cable has strong external electromagnetic interference resistance, stable data and signal transmission is guaranteed, the reinforcing core 25 is a high-strength inlet tensile reinforcing core, a compound twisting mode is adopted, twisting intercept is small, the whole extrusion process enables the towline cable to be strong in whole tightness, the maximum bearable tensile force of the towline cable is guaranteed to exceed 12kN, and good effect of excellent tensile property is achieved.

As shown in table 2, the drag chain cable of example 2 was tested several times to withstand the maximum tensile force and provide better results than the cable state.

	Movable mounting temperature range	Minimum radius of curvature	Can bear the maximum tensile force	Cable status
					Ordinary drag chain cable	-5℃～+70℃	7.5 times of cable external diameter	8～10KN	Attention state
Example 1 towline cable	-10℃～+70℃	7.5 times of cable external diameter	10-12KN	Normal state
					Example 2 towline cable	-10℃～+70℃	7.5 times of cable external diameter	>12KN	Normal state

TABLE 2

Example 3:

this embodiment provides a drag chain cable having the same structural features as those of embodiments 1 and 2.

As shown in fig. 5, the protective sheath 4 covers the outer layer of the inner protective layer 2, and the outer protective layer 3 covers the protective sheath 3.

This protective sheath 4 adopts special PUR (PolyURethane) material, and this protective sheath 4 sheath possesses strong super thick, resistant ultraviolet, the performance of resistant chemical corrosion to have higher flexibility and resilience, this tow chain cable adopts double-deck sheath structure, protective sheath 4 and outer sheath 3 promptly, protective sheath 4 soft fine assurance the bending resistance of cable, outer sheath 3 material mechanical strength is strong, satisfies its tensile properties of fine assurance again in high flexibility simultaneously, reaches the better effect that the bearable maximum pulling force of tow chain cable exceeds 14 kN.

As shown in table 3, the drag chain cable of example 3 was tested several times to withstand the maximum tensile force and provide better results than the cable state.

	Movable mounting temperature range	Minimum radius of curvature	Can bear the maximum tensile force	Cable status
					Ordinary drag chain cable	-5℃～+70℃	7.5 times of cable external diameter	8～10KN	Attention state
Example 1 towline cable	-10℃～+70℃	7.5 times of cable external diameter	10-12KN	Normal state
					Example 2 towline cable	-10℃～+70℃	7.5 times of cable external diameter	12-14KN	Normal state
Example 3 towline cable	-10℃～+70℃	7.5 times of cable external diameter	>14KN	Normal state

TABLE 3 Table 3

While the foregoing has been described in terms of illustrative embodiments thereof, so that those skilled in the art may appreciate the present application, it is not intended to be limited to the precise embodiments so that others skilled in the art may readily utilize the present application to its various modifications and variations which are within the spirit and scope of the present application as defined and determined by the appended claims.

Claims (10)

1. A drag chain cable comprising:

a cable core, the cable core further comprising:

the first heart yearn, the heart yearn is cyclic annular equidistance and arranges, first heart yearn still includes:

a conductor provided in the center of the first core wire;

an insulating material I, wherein the insulating material I is extruded on the outer layer of the conductor;

the second core wire is arranged in the center of the cable core, the second core wire is arranged into a group, the first core wire is coated with two annular structures of six groups and twelve groups, and the second core wire further comprises:

a first filling, which is arranged in the center of the second core wire;

the second insulating material is used for coating the first filling;

an inner sheath coating the cable core;

and the outer protective layer is used for extruding and wrapping the cable core and the inner protective layer.

2. The drag chain cable of claim 1, wherein the inner sheath further comprises an inner sheath that shields the first and the first strap.

3. A drag chain cable according to claim 2, wherein the inner sheath is extruded over the outer layer of the cable core.

4. A drag chain cable according to claim 3, wherein said shield is woven to shield said inner jacket in a spindle configuration.

5. The drag chain cable of claim 4, wherein said strap one encases said shield one.

6. The drag chain cable of claim 1, wherein the first core wire is of uniform outer diameter with the second core wire.

7. A drag chain cable according to claim 1, wherein said conductor is a high-flexibility multi-strand copper conductor and said insulating material is ETFE.

8. The towline cable of claim 1, wherein said first filler is cotton rope filler and said second insulating material is ETFE material.

9. A towline cable according to claim 2, wherein the inner sheath is of TPV material, the shield is of tinned copper wire material, and the strap is of non-woven strap.

10. A drag chain cable according to claim 1, wherein the outer sheath is a PUR outer sheath.