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Elevator rubber jacketed flexible cable and restrictive coating materials thereof

A lift and flexible cable technology, which is applied in the field of building construction lifts, elevators and similar equipment, can solve the problems of insufficient cable life, increased cable rigidity, and potential safety hazards, and achieve reduced cable costs, reduced diameters, and increased insulation effects Effect

Inactive Publication Date: 2013-03-20
广东裕泽线缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The twisting direction is opposite, and the consequence is that the rigidity of the cable increases; and when bending, some cable conductors must be deformed along the twisting direction, and the other part of the cable conductors will be deformed in the opposite direction of the twisting direction, which is easy to fatigue and break or produce U-shaped local accumulation to produce bulges.
Although the cable has a limited improvement in the cable's resistance to bending and torsion, its number of round trips on the flexure machine is only 10,000 back and forth, so it proves that the service life of the cable is not long enough
Moreover, when used in sun-exposed and rain-drenched environments such as construction sites, the sheath layer is prone to aging, posing safety hazards

Method used

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  • Elevator rubber jacketed flexible cable and restrictive coating materials thereof
  • Elevator rubber jacketed flexible cable and restrictive coating materials thereof
  • Elevator rubber jacketed flexible cable and restrictive coating materials thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The rubber-sheathed flexible cable used for the elevator in this embodiment is a four-core cable, such as figure 1 , figure 2 As shown, it includes three insulated main wires 01, one insulated ground wire 02, a filling layer 03, a non-woven wrapping layer 04 and a sheath layer 05. The insulated main wire 01 is composed of a main wire core 12 and a main wire core insulating layer 11 . The insulated ground wire 02 is composed of a ground core 22 and an insulating layer 21 of the ground core. The nominal cross section of the ground core 22 is smaller than the nominal cross section of the main core 12 . The outer diameters of the insulated main wire 01 and the insulated ground wire 02 are the same. The insulated main wire 01 and the insulated ground wire 02 are cabled and twisted into a cable core. The gap of the cabled core is filled with the filling layer 03 (it is an unvulcanized rubber filling strip), and the outer circumference of the cabled core is wrapped with a ...

Embodiment 2

[0037] The rubber-sheathed flexible cable used for the elevator in this embodiment is a five-core cable, such as image 3 , Figure 4As shown, it includes three insulated main wires 01, one insulated ground wire 02, one insulated neutral wire 06, a filling layer 03, a non-woven wrapping layer 04 and a sheath layer 05. The insulated main wire 01 is composed of a main wire core 12 and a main wire core insulating layer 11 . The insulated ground wire 02 consists of a ground wire core 22 and a ground wire core insulation layer 21, the insulated neutral wire 06 consists of a neutral wire core 62 and a neutral wire core insulation layer 61, and the ground wire core 22 and the neutral wire core 62 The nominal cross section is smaller than the nominal cross section of the main core 12 . The structure and size of the insulated neutral wire 06 are the same as those of the insulated ground wire 02 . The outer diameters of the insulated main wire 01 , the insulated ground wire 02 and th...

Embodiment 3

[0042] According to the rubber-sheathed flexible cable for elevators according to Embodiment 1 or Embodiment 2, the components contained in the material of the sheath layer 5 are as follows by weight:

[0043]

[0044]

[0045] In this embodiment, the sheath material of the rubber-sheathed flexible cable for the elevator adopts a general processing method. In order to further improve its processing technology and some related properties, chlorinated polyethylene and non-crystalline copolymers are selected and added with nano-scale inorganic active agent. Magnesium oxide, filler kaolin and talcum powder, plasticizer di-2-ethylhexyl sebacate, etc. are blended. Its blending equipment should adopt a closed internal mixer. When the temperature reaches 95 ° C ~ 110 ° C, add peroxide vulcanizing agent, and the material can be unloaded after about 30S ~ 60S. After the rubber is unloaded, it is cooled and the next piece is folded. Directly adopt cold feed extrusion, the extrusio...

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Abstract

The invention relates to an elevator rubber jacketed flexible cable and restrictive coating materials of the elevator rubber jacketed flexible cable. The elevator rubber jacketed flexible cable comprises an insulation main line, an insulation ground wire, a packing layer, a non-woven fabric taped covering and a jacket layer. A main line core of the insulation main line and a ground wire core of the insulation ground wire are respectively formed by a plurality of braided wires in a repeatedly stranded mode. Each braided wire is formed by a plurality of conductor wires in a bunched mode. The repeatedly stranded direction of the braided wires, the bunched and stranded direction of the soft conductor wires and the stranded direction of cabling are same. The restrictive coating materials is made of chlorinated polyethylene, ethylene-propylene-diene monomer, plasticizer sebacate-2- ethide ethyl ester, fortifier carbon black, filler kaolin, talcum powder, active agent, cross-linking agent, antioxidant antiager, microcrystalline wax and the like in components. The elevator rubber jacketed flexible cable is small in bending radius, soft and abrasion-proof, good in deflection preventing property, and long in service life in severe environments such as frequently moving, bending and sun-scorched and rain-drenched environments.

Description

technical field [0001] The invention relates to a rubber-sheathed flexible cable for elevators, which is especially suitable for building construction elevators, elevators and similar equipment. Background technique [0002] With the steady development of our country's social economy, the wire and cable industry is constantly updating and improving new varieties, and the output continues to increase to meet the increasing technical needs. For example, the performance of construction hoist cables for construction projects and facilities must meet the requirements of the hoist's working principle and working environment. The cables for elevators are usually used on the cranes in the field or in the workshop, and the frequency of their flexural movement is very high. Ordinary cables are prone to failures such as ultraviolet aging and conductor breakage when used outdoors. This means that the cables used for elevators must be able to meet various performance requirements under ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/04H01B7/18H01B7/17C08L23/28C08L23/16C08K13/02
Inventor 姚章清沈勇田道森
Owner 广东裕泽线缆有限公司