CN221149679U

CN221149679U - Wrapping tension balance type multi-core shielding control cable

Info

Publication number: CN221149679U
Application number: CN202322394066.0U
Authority: CN
Inventors: 王登峰; 邵千俊; 蔡长威; 王礼国; 丁志楠
Original assignee: Zhejiang Yuantong Wire and Cable Manufacturing Co Ltd
Current assignee: Zhejiang Yuantong Wire and Cable Manufacturing Co Ltd
Priority date: 2023-09-05
Filing date: 2023-09-05
Publication date: 2024-06-14
Anticipated expiration: 2033-09-05

Abstract

The utility model discloses a wrapping tension balanced type multi-core shielding control cable which comprises four power wire core groups which are mutually and separately arranged at 90 degrees in the circumferential direction through a cross-shaped isolation core frame and are mutually stranded to form a cable core, wherein each power wire core group comprises a small-diameter power wire core and a large-diameter power wire core, the outside of the cable core is sequentially coated with a polyester fiber plain-weave fabric longitudinal wrapping layer, an aluminum plastic composite belt wrapping shielding layer and a polyurethane outer sheath layer, the polyester fiber plain-weave fabric longitudinal wrapping layer is of a three-layer polyester fiber plain-weave opposite-seam longitudinal wrapping structure, and the circumferential directions of three formed longitudinal gaps are mutually 120 degrees. The control cable is tightly wound and tensioned without wrinkling, so that the uniform distance between the conductor and the shielding layer is kept, and the stability of the electrical characteristics is ensured.

Description

Wrapping tension balance type multi-core shielding control cable

Technical Field

The utility model relates to the technical field of cables, in particular to a multi-core shielding control cable with balanced winding tension.

Background

In an automated industrial production line, multi-core cables are often used for robots, mobile driving systems, and the like. The outer diameter of each wire core of the internal stranding of a common shielding multicore cable core is different, the cable stranding structure is unbalanced, the bending resistance is poor, the phenomenon of broken core and broken wire easily occurs, moreover, the wrapping layer outside the cable core is generally in a lap wrapping structure, wrapping tension becomes an important technical factor, winding equipment capable of adjusting the tension is required to be put into production, the investment of the equipment is greatly increased, if the wrapping operation is carried out under the condition that the wrapping tension is not adjusted, the wrapping tension can be changed to generate deviation, the distance between a conductor and a shielding layer is changed, the electrical characteristics are unstable, and the normal operation is influenced.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model aims to provide the multi-core shielding control cable with balanced wrapping tension, which has the advantages that the wrapping tension is tight without wrinkling, the uniform distance between a conductor and a shielding layer is kept, and the stability of electrical characteristics is ensured.

The utility model solves the technical problems through the following technical proposal.

The utility model provides a balanced multicore shielding control cable of lapping tension, includes four power core groups and separates the core frame circumference and arrange and strand jointly and form the cable core for 90 degrees each other through the cross, power core group includes path power core and big path power core, the outside cladding of cable core has polyester fiber plain weave cloth in proper order and indulges covering, plastic-aluminum composite tape and winds package shielding layer and polyurethane oversheath layer, polyester fiber plain weave cloth indulges the covering and is three polyester fiber plain weave cloth butt joint formula and indulges the structure and three longitudinal slit circumference that forms each other is 120 degrees.

Preferably, the gap distance of the longitudinal slit is not more than 50 μm.

Preferably, the small-diameter power wire core and the large-diameter power wire core comprise a power wire core conductor and a PFA insulating layer.

Preferably, the power wire core conductor is formed by twisting and compacting a plurality of soft copper wires, and the diameter of the soft copper wires is 0.01mm to 0.08mm.

Preferably, the outer diameter of the small-diameter power wire core is smaller than that of the large-diameter power wire core.

Preferably, the polyester fiber plain weave fabric longitudinal cladding has a thickness of 120 μm to 350 μm.

Preferably, the aluminum-plastic composite belt wrapping shielding layer is of an aluminum-plastic composite belt unidirectional spiral lapping and wrapping structure.

Preferably, the aluminum-plastic composite belt comprises a PET film base layer, and an aluminum foil layer is electroplated on the outer surface of the PET film base layer.

Preferably, the thickness of the PET film base layer is 5 to 10 times the thickness of the aluminum foil layer.

Preferably, the aluminum foil layer has a thickness of 8 μm to 30 μm.

The utility model has the beneficial effects that:

1. Four power line core groups formed by unequal-diameter small-diameter power line cores and large-diameter power line cores are separated and twisted together through a cross-shaped isolation core frame, so that the cable core is balanced in structure and better in bending resistance, then, a polyester fiber plain woven fabric longitudinal wrapping layer outside the cable core adopts a three-layer polyester fiber plain woven fabric butt joint type longitudinal wrapping structure, the formed three longitudinal gaps are 120 degrees in circumference, wrapping tension is tight and wrinkling cannot occur, uniform distance between a power line core conductor and a shielding layer is facilitated to be kept, stability of electrical characteristics is guaranteed, and durability is better.

2. The three-layer polyester fiber flat woven fabric butt joint type longitudinal wrapping structure is adopted to replace the covering and wrapping structure, so that the winding equipment investment is not needed in the production process, the equipment investment funds are reduced, and the production cost is reduced.

3. The PFA insulating layer is adopted by the small-diameter power wire core and the large-diameter power wire core, so that the dielectric constant and dielectric loss can be reduced, the capacitance and attenuation can be reduced, the sliding property between the insulating layer and the power wire core conductor can be improved, the local stress concentration of the power wire core conductor can be reduced, the torque force can be reduced, the deformation and wire breakage phenomenon of the power wire core conductor can be reduced, the bending resistance of the cable can be improved, and the durability is better.

Drawings

FIG. 1 is a schematic cross-sectional view of an embodiment of the present application;

FIG. 2 is a schematic view of a longitudinal cladding structure of a polyester fiber plain weave cloth according to an embodiment of the application;

In the figure: the cable comprises a 1-power wire core group, a 2-cross-shaped isolation core frame, a 3-small-diameter power wire core, a 4-large-diameter power wire core, a 5-polyester fiber plain woven fabric longitudinal cladding, a 6-aluminum plastic composite tape wrapping shielding layer, a 7-polyurethane outer sheath layer, 8-longitudinal gaps, 9-power wire core conductors and a 10-PFA insulating layer.

Detailed Description

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

As shown in fig. 1 and fig. 2, the wrapping tension balanced type multi-core shielding control cable in the embodiment of the utility model comprises four power wire core groups which are mutually and circumferentially arranged at 90 degrees in a separated mode through a cross-shaped isolation core frame and are twisted together to form a cable core, wherein the power wire core groups comprise a small-diameter power wire core and a large-diameter power wire core, the outer diameter of the small-diameter power wire core 3 is smaller than that of the large-diameter power wire core 4, specifically, the small-diameter power wire core 3 and the large-diameter power wire core 4 both comprise a power wire core conductor 9 and an insulating layer 10, the power wire core conductor 9 is formed by twisting and compacting a plurality of soft copper wires to form a circular conductor structure, and the diameter of the soft copper wires is 0.01mm to 0.08mm.

The cable core is externally and sequentially coated with a polyester fiber plain weave cloth longitudinal coating layer, an aluminum plastic composite tape wrapping shielding layer and a polyurethane outer sheath layer, wherein the polyester fiber plain weave cloth longitudinal coating layer is of a three-layer polyester fiber plain weave cloth opposite-seam type longitudinal coating structure, and the formed three longitudinal gaps are 120 degrees in circumferential direction, and further, the gap distance of the longitudinal gaps 8 is not more than 50 microns. The polyester fiber plain weave fabric longitudinal cladding 5 has a thickness of 120 μm to 350 μm. In one embodiment, the aluminum-plastic composite belt wrapping shielding layer 6 is an aluminum-plastic composite belt unidirectional spiral lapping and wrapping structure, and further, the aluminum-plastic composite belt comprises a PET film base layer, and an aluminum foil layer is formed on the outer surface of the PET film base layer in an electroplating mode. The thickness of the PET film base layer is 5 to 10 times that of the aluminum foil layer, and the thickness of the aluminum foil layer is 8 to 30 mu m.

The present utility model has been described in terms of embodiments, and it will be appreciated by those of skill in the art that various changes can be made to the features and embodiments, or equivalents can be substituted, without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. Wrapping tension balanced type multi-core shielding control cable is characterized by: including four power core groups (1) each other are 90 degrees separation arrangement and common transposition through cross isolation core frame (2) circumference and form the cable core, power core group (1) are including path power core (3) and big diameter power core (4), the outside cladding of cable core has polyester fiber plain weave cloth longitudinal wrapping layer (5), plastic-aluminum composite tape around package shielding layer (6) and polyurethane oversheath layer (7) in proper order, polyester fiber plain weave cloth longitudinal wrapping layer (5) are three-layer polyester fiber plain weave cloth opposite joint longitudinal wrapping structure and the three longitudinal slit (8) circumference that forms each other are 120 degrees.

2. The wrap tension balanced multi-core shielded control cable of claim 1, wherein: the gap distance of the longitudinal slit (8) is not more than 50 micrometers.

3. The wrap tension balanced multi-core shielded control cable of claim 1, wherein: the small-diameter power wire core (3) and the large-diameter power wire core (4) comprise a power wire core conductor (9) and a PFA insulating layer (10).

4. The wrap tension balanced multi-core shielded control cable according to claim 3, wherein: the power wire core conductor (9) is formed by twisting and compacting a plurality of soft copper wires, and the diameter of each soft copper wire is 0.01mm to 0.08mm.

5. The wrap tension balanced multi-core shielded control cable of claim 1, wherein: the outer diameter of the small-diameter power wire core (3) is smaller than that of the large-diameter power wire core (4).

6. The wrap tension balanced multi-core shielded control cable of claim 1, wherein: the thickness of the polyester fiber plain weave cloth longitudinal cladding (5) is 120-350 mu m.

7. The wrap tension balanced multi-core shielded control cable of claim 1, wherein: the aluminum-plastic composite belt wrapping shielding layer (6) is of a one-way spiral lapping and wrapping structure of the aluminum-plastic composite belt.

8. The wrap tension balanced multi-core shielded control cable of claim 7, wherein: the aluminum-plastic composite belt comprises a PET film base layer, and an aluminum foil layer is formed on the outer surface of the PET film base layer in an electroplating mode.

9. The wrap tension balanced multi-core shielded control cable of claim 8, wherein: the thickness of the PET film base layer is 5 to 10 times that of the aluminum foil layer.

10. The wrap tension balanced multi-core shielded control cable of claim 8, wherein: the aluminum foil layer has a thickness of 8 μm to 30 μm.