CN210325275U

CN210325275U - Flexible control cable

Info

Publication number: CN210325275U
Application number: CN201921388640.9U
Authority: CN
Inventors: 段国权; 牛杰; 陈然然; 许冬
Original assignee: Wuhan Xintiandi Electrician Technology Co Ltd
Current assignee: Wuhan Xintiandi Electrician Technology Co Ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-04-14
Anticipated expiration: 2029-08-23

Abstract

The utility model discloses a flexible control cable relates to wire and cable's technical field, and it includes a plurality of conductors, and the crowded package of conductor periphery wall has the first insulation layer, and the common cladding of a plurality of conductor periphery walls has first shielding layer, and the first shielding layer outside is provided with at least one cable wire along conductor length direction, and cable wire and the common crowded package of first shielding layer periphery wall have the second insulation layer. The utility model discloses a cable wire is connected with a plurality of conductors, has improved flexible control cable's tensile properties.

Description

Flexible control cable

Technical Field

The utility model belongs to the technical field of wire and cable's technique and specifically relates to a flexible control cable is related to.

Background

The control cable is mainly applied to special environmental industries such as steel, metallurgy, coal, traveling cranes, cranes and the like, and provides power and signal control for transportation equipment. Such cables are highly demanding and complex, and not only are subjected to their own weight during use, but also to tensile forces from the equipment in which they are used.

To above-mentioned problem, chinese patent that patent publication number is CN204066869U, a high flexibility control cable is proposed, including a plurality of insulation core, insulation core transposition forms the stranding, insulation core includes the conductor that a plurality of copper wires transposition formed and the insulating layer in the cladding conductor outside, the cladding has around the covering from inside to outside in proper order in the stranding outside, shielding layer and sheath, the centre packing of stranding has the rubber banding, the material around the covering is the non-woven fabrics, the shielding layer is the braided structure that tinned copper and synthetic fiber cross weaving formed, the diameter range of copper wire is 0.15 ~ 0.4mm, the outmost pitch ratio of copper wire transposition is 10 ~ 12. The utility model discloses an effect that the external diameter is little, flexibility is high has.

The above prior art solutions have the following drawbacks: when the flexible control cable is applied to equipment in frequent movement, the flexible cable needs to bear part of gravity of the flexible control cable, and the cable is easy to stretch and deform after being used for a long time, so that the electrical performance of the flexible control cable is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a flexible control cable that tensile strength is high.

The utility model aims at realizing through the following technical scheme:

the utility model provides a flexible control cable, includes a plurality of conductors, the crowded package of conductor periphery wall has first insulating layer, and is a plurality of the common cladding of conductor periphery wall has first shielding layer, the first shielding layer outside is provided with at least one and follows conductor length direction's cable wire, the cable wire with the crowded package of first shielding layer periphery wall has the second insulating layer jointly.

By adopting the technical scheme, when the flexible control cable moves along with a machine in a power-on mode, the steel cable is connected with the conductors through the second insulating layer, the dead weight of the whole flexible control cable can be effectively borne, so that the conductors and the first insulating layer or the first shielding layer on the conductors are prevented from being pulled, deformed and even broken under the influence of the dead weight, the tensile property of the flexible control cable is improved, and the service life of the flexible control cable is prolonged; meanwhile, the first shielding layer can effectively shield an external magnetic field, and the anti-interference performance of the flexible control cable is improved.

Further setting the following steps: the steel cable with be connected with a plurality of flexible connecting band between the first shielding layer outer wall, it is a plurality of flexible connecting band follows steel cable length direction interval sets up.

Through adopting above-mentioned technical scheme, the flexible connection area is fixed cable wire and a plurality of conductors in the first shielding layer, has reduced the probability that cable wire and a plurality of conductors break away from after the second insulating layer between cable wire and the first shielding layer is torn in the use as far as possible, has improved the joint strength between cable wire and the first shielding layer.

Further setting the following steps: a plurality of the conductors are divided into a plurality of groups of control units, and the peripheral wall of each control unit is coated with a third insulating layer.

Through adopting above-mentioned technical scheme, a plurality of third insulating layer divides into a plurality of conductor district into a plurality of control unit of group, when setting up a plurality of third insulating layer for different colours, the quick overhaul in later stage of can being convenient for.

Further setting the following steps: the control unit periphery wall still is provided with refractory material layer.

By adopting the technical scheme, the fireproof material layer improves the fireproof performance of the flexible control cable, so that the flexible control cable can still work for a certain time in a high-temperature or open-fire environment.

Further setting the following steps: and a second shielding layer is also arranged between the refractory material layer and the third insulating layer.

By adopting the technical scheme, the second shielding layer provides anti-electromagnetic interference for the plurality of conductors in the control unit, so that the flexible control cable has the shielding effect on high-frequency and low-frequency magnetic fields under the matching of the first shielding layer and the second shielding layer, and the anti-interference performance of the flexible control cable is obviously improved.

Further setting the following steps: and a talcum powder layer is filled between the inner peripheral wall of the refractory material layer and the outer peripheral wall of the first insulating layer.

Through adopting above-mentioned technical scheme, the talcum powder layer plays the lubrication action, can prevent that the adhesion from taking place for the first insulation layer of a plurality of conductor periphery walls in same the control unit for flexible control cable is when following the machine frequent movement, and the direct friction between a plurality of first insulation layers reduces, also can avoid a plurality of wires to entangle each other.

Further setting the following steps: and a plurality of elastic glue bars are filled between the inner peripheral wall of the first shielding layer and the outer peripheral wall of the third insulating layer.

Through adopting above-mentioned technical scheme, the radial flexibility degree and the elasticity of flexible control cable have been improved to the elastic glue stick for when the machine frequently moves the upset following the flexible control cable, original straightness that straightness still can be resumeed to the flexible control cable.

To sum up, the utility model discloses a beneficial technological effect does:

1. the steel cable is connected with the plurality of conductors through the second insulating layer, so that the dead weight of the whole flexible control cable can be effectively borne, the service life of the flexible control cable is prolonged, and the tensile property of the flexible control cable is improved;

2. the flexible connecting belt fixes the steel cable and the plurality of conductors in the first shielding layer, so that the connecting strength between the steel cable and the first shielding layer is improved, and the effect of improving the tensile strength of the steel cable is ensured as much as possible;

3. a plurality of third insulating layer is with a plurality of conductor differentiation into a plurality of control unit of group, when setting up a plurality of third insulating layer for different colours, the quick overhaul in later stage of can being convenient for.

Drawings

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

fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Reference numerals: 1. a conductor; 2. a first insulating layer; 3. a first shielding layer; 4. a steel cord; 5. a second insulating layer; 6. a flexible connecting band; 7. a control unit; 8. a third insulating layer; 9. a layer of refractory material; 10. a second shielding layer; 11. a talc powder layer; 12. an elastic glue stick.

Detailed Description

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

Referring to fig. 1 and 2, a flexible control cable disclosed by the present invention comprises a plurality of conductors 1, wherein the conductors 1 are single-stranded copper wires, the outer peripheral wall of the conductor 1 is extruded with a first insulating layer 2, the first insulating layer 2 is extruded with crosslinked polyethylene, the outer peripheral wall of the plurality of conductors 1 is jointly wrapped with a first shielding layer 3, the first shielding layer 3 is woven with galvanized copper wires, two steel cables 4 along the length direction of the conductor 1 are arranged outside the first shielding layer 3, the two steel cables 4 are distributed with the first shielding layer 3 in an equidistant circumferential array, a plurality of flexible connecting bands 6 are connected between the steel cables 4 and the outer peripheral wall of the first shielding layer 3, the flexible connecting bands 6 are made of woven cloth, one end of each flexible connecting band is wound around the outer peripheral wall of the steel cable 4, the other end of each flexible connecting band 6 is wound around the outer peripheral wall of the first shielding layer 3, the plurality of flexible connecting bands 6 are distributed with equal intervals along the length direction of the steel cable 4, the steel cables, the second insulating layer 5 is extruded by polyvinyl chloride.

When the flexible control cable works along with a machine, the flexible connecting belt 6 fixes the steel cable 4 and the plurality of conductors 1 in the first shielding layer 3, the probability that the steel cable 4 is separated from the plurality of conductors 1 after the second insulating layer 5 between the steel cable 4 and the first shielding layer 3 is torn in the use process is reduced as much as possible, the connection strength between the steel cable 4 and the first shielding layer 3 is improved, at the moment, the steel cable 4 is fixedly connected with the plurality of conductors 1, the whole dead weight of the flexible control cable can be effectively borne, the first insulating layers 2 or the first shielding layers 3 on the plurality of conductors 1 and the conductors 1 are prevented from being pulled, deformed and even broken under the influence of the dead weight, the tensile property of the flexible control cable is improved, and the service life of the flexible control cable is prolonged; meanwhile, the first shielding layer 3 can effectively shield an external magnetic field, so that the anti-interference performance of the flexible control cable is improved, and the quality of signals transmitted in the conductor 1 is ensured as much as possible.

Referring to fig. 1 and 2, a plurality of conductors 1 are divided into four groups of control unit 7, the periphery wall of the control unit 7 is wrapped with a third insulating layer 8, the third insulating layer 8 is formed by polyethylene-based extrusion, the periphery wall of the control unit 7 is wrapped with a refractory material layer 9, the refractory material layer 9 is formed by wrapping a mica tape, a second shielding layer 10 is further wrapped between the refractory material layer 9 and the third insulating layer 8, the second shielding layer 10 is an aluminum foil, talc powder layers 11 are filled between the periphery wall of the refractory material layer 9 and the periphery walls of the plurality of first insulating layers 2, and a plurality of elastic glue rods 12 are filled between the periphery wall of the first shielding layer 3 and the periphery wall of the third insulating layer 8.

The four third insulating layers 8 divide the plurality of conductors 1 into four groups of control units 7, and the four third insulating layers 8 can be set to be different colors, so that quick examination and confirmation in later-stage overhaul can be facilitated; the second shielding layer 10 provides anti-electromagnetic interference for the plurality of conductors 1 in the control unit 7, so that the flexible control cable has shielding effects on high-frequency and low-frequency magnetic fields under the cooperation of the first shielding layer 3 and the second shielding layer 10, and the anti-interference performance of the flexible control cable is remarkably improved; the fireproof material layer 9 improves the fireproof performance of the flexible control cable, so that the flexible control cable can still work for a certain time in a high-temperature or open-fire environment.

The talc powder layer 11 has a lubricating effect, so that the first insulating layers 2 on the outer peripheral walls of the plurality of conductors 1 in the same control unit 7 can be prevented from being adhered, direct friction among the plurality of first insulating layers 2 is reduced when the flexible control cable moves frequently along with a machine, and mutual entanglement of a plurality of wires can be avoided; the elastic rubber rod 12 improves the radial flexibility and elasticity of the flexible control cable, so that the flexible control cable can still recover the original straightness when the flexible control cable rotates along with the frequent movement of the machine.

The implementation principle and the beneficial effects of the embodiment are as follows:

when the flexible control cable moves along with a machine in a power-on state, the steel cable 4 is connected with the conductors 1 through the second insulating layer 5, the dead weight of the whole flexible control cable can be effectively borne, so that the conductors 1 and the first insulating layer 2 or the first shielding layer 3 on the conductors 1 are prevented from being pulled, deformed and even broken under the influence of the dead weight, the tensile property of the flexible control cable is improved, and the service life of the flexible control cable is prolonged; meanwhile, the first shielding layer 3 can effectively shield an external magnetic field, and the anti-interference performance of the flexible control cable is improved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A flexible control cable, characterized by: including a plurality of conductors (1), conductor (1) periphery wall crowded package has first insulating layer (2), and is a plurality of conductor (1) periphery wall has first shielding layer (3) jointly to wrap, first shielding layer (3) outside is provided with at least one and follows conductor (1) length direction's cable wire (4), cable wire (4) with first shielding layer (3) periphery wall crowded package has second insulating layer (5) jointly.

2. A flexible control cable according to claim 1, wherein: cable wire (4) with be connected with a plurality of flexonics area (6), a plurality of between first shielding layer (3) periphery wall flexible connection area (6) are followed cable wire (4) length direction interval sets up.

3. A flexible control cable according to claim 1, wherein: a plurality of the conductor (1) is divided into a plurality of groups of control units (7), and the peripheral wall of each control unit (7) is coated with a third insulating layer (8).

4. A flexible control cable according to claim 3, wherein: the outer peripheral wall of the control unit (7) is further provided with a refractory material layer (9).

5. A flexible control cable according to claim 4, wherein: and a second shielding layer (10) is also arranged between the refractory material layer (9) and the third insulating layer (8).

6. A flexible control cable according to claim 5, wherein: and a talc powder layer (11) is filled between the inner peripheral wall of the refractory material layer (9) and the outer peripheral wall of the first insulating layer (2).

7. A flexible control cable according to claim 3, wherein: a plurality of elastic glue rods (12) are filled between the inner peripheral wall of the first shielding layer (3) and the outer peripheral wall of the third insulating layer (8).