CN203415277U

CN203415277U - Accompanying elevator cable

Info

Publication number: CN203415277U
Application number: CN201320527565.6U
Authority: CN
Inventors: 孔善祥; 高丁元; 史孔金
Original assignee: Shanghai Step Electrical Wire and Cable Co Ltd
Current assignee: Shanghai Xinshida Elevator Parts Co ltd; Shanghai Step Electric Corp
Priority date: 2013-08-27
Filing date: 2013-08-27
Publication date: 2014-01-29
Anticipated expiration: 2023-08-27

Abstract

The utility model provides an accompanying elevator cable which comprises a number of conductive wire cores and an insulating outer sheath. Each conductive wire core comprises a number of copper clad steel conductors and a number of copper conductors. The copper clad steel conductors and the copper conductors are stranded. According to the utility model, the defect that the conductors are prone to core break due to poor elevator cable bending performance in the prior art is overcome; on the premise that other original performances of the accompanying elevator cable are ensured, the bending performance of the conductors in the accompanying elevator cable is improved; the strength of the cable conductors is improved; the phenomenon of core break is prevented; and the reliability of the accompanying elevator cable is improved.

Description

Trailing elevator cable

Technical field

The utility model relates to a kind of elevator cable, particularly relates to a kind of trailing elevator cable.

Background technology

Along with the development of elevator Electrical Control Technology, the core number of the elevator cable insulated wire cores of electric energy transmitting and signal is fewer and feweri, thereby elevator cable insulated wire cores more options list core homogeneous texture more, to reduce material consumption.But move up and down with elevator, elevator cable is being followed elevator and carried out bending motion, now in insulated wire cores, conductor produces bending stress.Because single core is arranged in parallel, to compare the bending radius of stranding insulated wire cores little for insulated wire cores, and when crooked, insulated wire cores is fricton-tight, therefore, in the insulated wire cores that is arranged in parallel during cable bend, the bending stress of conductor is larger, bending property is poor, easily there is disconnected core phenomenon in conductor, has reduced the operational reliability of cable.

Utility model content

The technical problems to be solved in the utility model is poor in order to overcome in prior art in elevator cable the insulated wire cores bending property of homogeneous texture, make the conductor in insulated wire cores that the defect of disconnected core easily occur, a kind of trailing elevator cable is provided, have under the prerequisite of other original performance that guarantees trailing elevator cable, improve the function of the conductor bending property in trailing elevator cable.

The utility model is to solve above-mentioned technical problem by following technical proposals:

The utility model provides a kind of trailing elevator cable, and it comprises some conductor wire cores and an insulation oversheath, and its feature is, each conductor wire core comprises some copper covered steel conductors and some copper conductors, and those copper covered steel conductors and those copper conductors are stranded.

In this programme, the tensile strength of copper covered steel conductor is better than the tensile strength of copper conductor, so the bending property of the trailing elevator cable of this programme is significantly improved with respect to existing trailing elevator cable, improve the intensity of cable conductor, prevented from resolving the generation of core phenomenon.

Preferably, the diameter of this copper covered steel conductor is identical with the diameter of this copper conductor.

Preferably, the diameter of this copper covered steel conductor is 0.1mm-0.3mm.

Preferably, the quantity of this copper covered steel conductor is 2-6 root.

Preferably, each conductor wire core is all extruded with an insulating barrier outward, and the insulating barrier that each conductor wire core and each conductor wire core extrude outward forms an insulated wire cores.

Preferably, the material of this insulating barrier is elastomer PVC(polyvinyl chloride) material.The elastomer PVC insulating material that the trade mark that this insulating barrier selects commercially available Shanghai Kaibo Special Cable Material Factory to produce is CVC-7051.

Preferably, this insulation oversheath extrudes and is formed on outside those insulated wire cores and wraps up those insulated wire cores.

Preferably, those insulated wire cores parallel arrangements are in this insulation oversheath.

Preferably, the insulation oversheath that this insulation oversheath is PVC elastomeric material.

In the utility model, above-mentioned optimum condition can combination in any on the basis that meets this area general knowledge, obtains each preferred embodiment of the present utility model.

Positive progressive effect of the present utility model is:

Trailing elevator cable of the present utility model, overcome in prior art elevator cable bending property poor, cause conductor that the defect of disconnected core easily occurs, under the prerequisite of other original performance that guarantees trailing elevator cable, improve the function of the conductor bending property in trailing elevator cable, improve the intensity of cable conductor, prevented from resolving the generation of core phenomenon, thereby improved the reliability of elevator cable.

Accompanying drawing explanation

Fig. 1 is the schematic cross-section of the trailing elevator cable of preferred embodiment of the present utility model.

Fig. 2 is the schematic cross-section of conductor wire core of the trailing elevator cable of preferred embodiment of the present utility model.

Embodiment

Mode below by embodiment further illustrates the utility model, but therefore the utility model is not limited among described scope of embodiments.

The utility model provides a kind of trailing elevator cable, and it comprises some copper covered steel conductors, copper conductor, some insulating barriers and an insulation oversheath.Those copper covered steel conductors and the mutual stranded formation conductor wire core of those copper conductors.Each conductor wire core is all extruded with this insulating barrier outward, the insulating barrier that each conductor wire core and each conductor wire core extrude outward forms an insulated wire cores, each this insulating barrier is to be extruded and formed by elastomer PVC material, also has the insulation oversheath that this insulation oversheath is PVC elastomeric material.

And the diameter of this copper covered steel conductor and this copper conductor is 0.1mm-0.3mm, and the diameter of this copper covered steel conductor and this copper conductor is identical, the quantity of this copper covered steel conductor is 2-6 root.

In the present embodiment, as shown in Figure 1, this trailing elevator cable is comprised of 12 insulated wire cores, and each this conductor wire core comprises that three copper covered steel conductors 1 and 27 copper conductor 2(are as shown in Figure 2), each insulated wire cores comprises a conductor wire core and an insulating barrier 3.The diameter of every copper covered steel conductor 1 and every copper conductor 2 is 0.18mm, and the sectional area of each this insulated wire cores is 0.75mm ², meet nominal area of section.In addition, this insulating barrier 3 adopts squash types to extrude mode to make.

As shown in Figure 1, those insulated wire cores are parallel arrangements, and those insulated wire cores are arranged in this insulation oversheath 4 side by side.This insulation oversheath 4 extrudes and is formed on outside those insulated wire cores, and those insulated wire cores are wrapped in this insulation oversheath 4.Extrude in process, this insulation oversheath 4 forms this insulation oversheath 4 by the closely knit filling in the space between those insulated wire cores, guarantees the stability of this trailing elevator cable.

Because the present embodiment adopts the copper conductor of low resistivity, so copper conductor maximum DC resistance in the time of 20 ℃ is less than the standard that 26 Ω/km meets the conductor GB/T3956(cable conductor of cable) the 5th kind of flexible conductor regulation in standard.Meanwhile, because the tensile strength of copper covered steel conductor reaches 780MPa, far above the tensile strength of the 230MPa of copper conductor.Therefore, in the situation that guaranteeing that electrical property meets existing standard, improved the intensity of cable conductor, prevented from resolving core phenomenon and occur, cable bend performance obviously improves, thereby has improved trailing elevator cable reliability of operation.

It will be appreciated by those skilled in the art that, in the present embodiment, the quantity of cited those insulated wire cores, those copper covered steel conductors and those copper conductors is not restricted to the cited quantity of the present embodiment, and the quantity of those insulated wire cores, those copper covered steel conductors and those copper conductors can be made corresponding adjustment according to service condition.The arrangement mode of those conductor wire cores also can change accordingly according to space, environment for use etc.The arrangement mode of those insulated wire cores equally also can change according to demand accordingly.

Although more than described embodiment of the present utility model, it will be understood by those of skill in the art that these only illustrate, protection range of the present utility model is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present utility model and essence, can make various changes or modifications to these execution modes, but these changes and modification all fall into protection range of the present utility model.

Claims

1. a trailing elevator cable, it comprises some conductor wire cores and an insulation oversheath, it is characterized in that, and each conductor wire core comprises some copper covered steel conductors and some copper conductors, and those copper covered steel conductors and those copper conductors are stranded.

2. trailing elevator cable as claimed in claim 1, is characterized in that, the diameter of this copper covered steel conductor is identical with the diameter of this copper conductor.

3. trailing elevator cable as claimed in claim 1, is characterized in that, the diameter of this copper covered steel conductor is 0.1mm-0.3mm.

4. trailing elevator cable as claimed in claim 1, is characterized in that, the quantity of this copper covered steel conductor is 2-6 root.

5. trailing elevator cable as claimed in claim 1, is characterized in that, each conductor wire core is all extruded with an insulating barrier outward, and the insulating barrier that each conductor wire core and each conductor wire core extrude outward forms an insulated wire cores.

6. trailing elevator cable as claimed in claim 5, is characterized in that, the material of this insulating barrier is elastomer PVC material.

7. trailing elevator cable as claimed in claim 5, is characterized in that, this insulation oversheath extrudes and is formed on outside those insulated wire cores and wraps up those insulated wire cores.

8. trailing elevator cable as claimed in claim 5, is characterized in that, those insulated wire cores parallel arrangements are in this insulation oversheath.

9. the trailing elevator cable as described in any one in claim 1-8, is characterized in that, the insulation oversheath that this insulation oversheath is PVC elastomeric material.