CN202102764U - Enhanced flat flexible cable for hoisting equipment - Google Patents
Enhanced flat flexible cable for hoisting equipment Download PDFInfo
- Publication number
- CN202102764U CN202102764U CN2011201226882U CN201120122688U CN202102764U CN 202102764 U CN202102764 U CN 202102764U CN 2011201226882 U CN2011201226882 U CN 2011201226882U CN 201120122688 U CN201120122688 U CN 201120122688U CN 202102764 U CN202102764 U CN 202102764U
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- Prior art keywords
- cable
- flexible cable
- flat flexible
- hoisting equipment
- conductor
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Abstract
The utility model discloses an enhanced flat flexible cable for hoisting equipment, which comprises three transversely arranged conductor sets. Each conductor set is formed by a plurality of oxygen-free copper wire conductors which are mutually stranded into a bundle, reinforcing cores are arranged on two sides of each conductor set respectively, each reinforcing core is formed by a plurality of thin galvanized wires which are stranded into a bundle, the diameter of each galvanized wire ranges from 1mm to 3mm, and the outer sides of the conductor sets and the reinforcing cores are wrapped by insulating layers and belting layers sequentially, and the conductor sets wrapped by the belting layers and the outer sides of the reinforcing cores are jointly wrapped by a flat sheath layer by extruding. The enhanced flat flexible cable is formed by thin galvanized wires which are stranded into a bundle and positioned outside the conductor sets, tensile resistance of the cable is effectively improved, and elements of the cable are smooth and fine in levelling property during bending and winding of the cable. Fine relative displacement can be realized between cable cores which can be gradually extended, so that the enhanced flat flexible cable is better suitable for dragging and rolling in environments allowing smaller bending radiuses.
Description
Technical field:
The utility model relates to flat flexible cable field, relates in particular to a kind of hoisting equipment with reinforced flat flexible cable.
Background technology:
Hoisting equipment is operated under the condition of high temperature, because the production environment temperature is high, and cable insulation easy ageing, the useful life of having reduced cable design; Improve cable and changed frequency, in the production, cable running time under the time limit of normally using according to cable design in cable useful life and the varying environment, definite according to experience; For fear of the cable accident of bursting apart, increase coefficient of safety, cable value in useful life is less; Replacement cycle is short, because hoisting equipment needs a large amount of power cable and control cable, it is very high to change frequency; Changing the hoisting equipment cable needs great amount of manpower, thereby shortens the replacement cycle operation, has increased cable cost; Waste manpower, increased the maintenance off-time, reduced production efficiency.
At present China's hoisting machinery is lacked with natural-rubber-covered rubber sleeve flexible cables such as butylbenzene that transporting equipment is used general useful life, can only use some months, have in addition less than too early bending failure of copper conductor and fracture just took place in one month.How hoisting machinery and transporting equipment rubber sleeve flexible cable improve the anti-song property level of such cable because of the easily broken core of continuous bend, and how carrying out material chosen and architecture advances is the emphasis of industry work.The utility model adopts the stranded bunchy formation of several seizing wires and places the outside of conductor group, has strengthened the tensile strength of cable effectively, has solved the phenomenon of cable because of the easily broken core of continuous bend.
The utility model content:
The purpose of the utility model provides a kind of hoisting equipment with reinforced flat flexible cable; Can not only bear bigger mechanical external force; And can bear suitable pulling force; Solved hoisting equipment with flat flexible cable when vertical the use, cause disconnected core problem because of cable is crooked with own wt, thereby reached the useful life of prolongation cable.
The technical scheme of the utility model is following:
Hoisting equipment is with reinforced flat flexible cable; Comprise three groups of horizontal and put conductor groups; Described conductor group by the mutual stranded bunchy of several zinc-plated copper free wire conductors, is characterized in that respectively: described conductor group both sides are respectively equipped with strengthening core, and described strengthening core is by the stranded bunchy of several thin zinc-coated wires; Described several zinc-coated wire diameter is 1mm-3mm; The described conductor group and the described strengthening core outside are enclosed with insulating barrier, belting layer successively, and conductor group behind the parcel belting layer and strengthening core outside integral body extrude one deck restrictive coating, and described restrictive coating is a flat.
Described hoisting equipment is characterized in that with reinforced flat flexible cable: described insulating barrier adopts the squash type expressing technique, and material adopts butyronitrile polyvinyl chloride composite flame-proof elastomer.
Described hoisting equipment is characterized in that with reinforced flat flexible cable: described belting layer material selection non-absorbent material twining package tape.
Described hoisting equipment is characterized in that with reinforced flat flexible cable: described restrictive coating material adopts silicon rubber.
The material that the utility model adopted is following:
(1) conductor.The flexibility of copper cash mechanical property and copper cash is mainly considered in the selection of the conductor material of hoisting equipment cable.The copper cash mechanical property depends on material selection and processing technology thereof; The copper stranded conductor flexibility depends on the diameter and the correlative factors such as direction of lay control and twisting pitch of stranded annealed copper wire.The stranded conductor that the copper line diameter is big, its tensile property is good, but flexibility is poor, and not flexible; The stranded conductor that the copper line diameter is little, soft, resistance to bend(ing) is good, but tensile property is poor.Conductor should adopt the 6th kind of copper or the tin-coated copper conductor stipulated among the GB/T3956 to restraint stranded forming in the same way.In order to reduce the bending modulus of stranded conductor, increase the flexibility of cable, further improve the anti-degree of crook of cable; Secondly it is stranded to adopt the 6th kind of more soft annealing single round copper wire to restraint strand in the same way,, should adopt stranded tinned wird; Tin-coated copper single line smooth surface, activity are good; When cable was crooked, the frictional resistance in the stranded conductor between the tinned wird reduced with restraining force each other, helped lead and slided and stretch song along unidirectional spiral.
(2) strengthening core.Strengthening core adopts galvanized steel wire rope, and wirerope diameter determines according to cable thickness, is generally 1-3mm.
(3) insulation.Hoisting equipment is special-purpose rubber sleeve flexible cable products of heavy in section, heavy load with the cable great majority; In running; Frequently suffer the starting-impact of cable roller and continuous roll extrusion; Therefore should use high anti tear, high-intensity butyronitrile polyvinyl chloride composite flame-proof elastomer as cable insulation, back and forth deflect required physical and mechanical properties in the hope of bearing.Butyronitrile polyvinyl chloride composite flame-proof elastomer material has flexibility cold resistance and subduing property of bending preferably; Have good percentage elongation, grease resistance; Anti-flammability; Also having outstanding anti-ozone and weatherability, outstanding resistance to wearing and tearing strength, is that a kind of desirable hoisting equipment is with cable insulation and sheath material.
(4) sheath.Sheath adopts silastic material.The flat type flexible cable of hoisting equipment is to be used for moving frequently, needs the field platform of crooked towing.When extruding flat type cable cover(ing), if mold design make improperly usually can occur that the surface is not only great, sheath is eccentric, became uneven is even, the construction of cable is unstable, these key of problem of quality problems such as sheath and insulating barrier disengaging are the pressure factors of die orifice.Common round cable, because its circular configuration, the pressure of circular die orifice circumferentially is being evenly distributed, so its sheath is not prone to above-mentioned quality problems.Flat type cable is quite different, because the level of its die orifice and being uneven in length of vertical direction cause inhomogeneous this technological problems of extrusion pressure not solve, the sheath quality just is difficult to control.
The geometry of mould, structural shape and size in the sheath extrusion, the height of protective cover material extrusion temperature and pressure size portion directly influence the quality of product processing.According to the rubber-plastics material melt flow characteristics, when runner is more smoothly extruded discharging easy more, if core rod adopts conventional squash type geometry, the gel quantity on platypelloid type die orifice place's level and the vertical direction is not waited, be difficult to guarantee to extrude the uniformity of thickness.
When extruding the silicon rubber flat cable, the die sleeve discharging opening, it is circular-arc to be processed into evagination; This is because rubber has the viscoelastic body characteristic, makes the middle pressure of die sleeve mouth pancake maximum, and flow is just fast especially; Owing to expand, therefore we change this into circular-arc to make " flat type is not flat " phenomenon that product causes bulging, prolong its shaping pressurized time with tension in the middle of suppressing; Solve " flat type is not flat " phenomenon, guarantee shape requirement.When sheath is extruded, should strengthen the radial pressure of mould, extrude tight, solid with assurance.According to environment for use and cable normal operating temperature; Select the silicone rubber jacket material, because oversheath requires to have certain mechanical property, common silastic material mechanical property is relatively poor; Especially tear resistance is poor; Can not satisfy the normal mounting operation of cable,, select for use tension to tear the silicone rubber jacket material and can satisfy serviceability through test, checking.
The advantage of the utility model:
The flat flexible cable of the utility model has remarkable mechanicalness, flexibility; And anti-frequent bending and the characteristic of reeling; Also have very high thermal endurance, high flame retardant, excellent cold resistance, good percentage elongation, excellent electric insulation performance, good aging properties, excellent oil resistance, outstanding resistance to wears and tearing strength.
Technological advantage:
(1) has the hollow line cored structure, promptly use soft filler and round insulation core stranded, to increase the bending resistance of core;
(2) can reduce the prestressing force that produces in crooked prestressing force, especially stranding and the stranded technical process of conductor of core effectively;
(3) guarantee cable in crooked winding process, submissive, the good leveling property of each member in the cable should have good relative displacement between core and the ability gradual change is stretched, and makes it to be adapted at more allowing drawing under the less environment of bending radius and rolling.
Description of drawings:
Fig. 1 is the structural representation of the utility model.
Embodiment:
Referring to accompanying drawing, hoisting equipment comprises three groups of horizontal and put conductor groups 1 with reinforced flat flexible cable; By several zinc-plated copper free wire conductor 2 mutual stranded bunchys, conductor group 1 outside is enclosed with insulating barrier 3, belting layer 4 to conductor group 1 successively respectively, and conductor group 1 both sides are respectively equipped with strengthening core 5; Strengthening core 5 is by several thin zinc-coated wire 6 stranded bunchys, and several zinc-coated wire 6 diameters are 1mm-3mm, and strengthening core 5 outsides are enclosed with insulating barrier 3, belting layer 4 successively; Conductor group 1 behind the parcel belting layer 4 extrudes one deck restrictive coating 7 with strengthening core 5 outside integral body; Restrictive coating 7 is a flat, and described insulating barrier 3 adopts the squash type expressing technique, and material adopts butyronitrile polyvinyl chloride composite flame-proof elastomer; Belting layer 4 material selection non-absorbent material twining package tapes, restrictive coating 7 materials adopt silicon rubber.
Claims (4)
1. a hoisting equipment is with reinforced flat flexible cable; Comprise three groups of horizontal and put conductor groups; Described conductor group by the mutual stranded bunchy of several zinc-plated copper free wire conductors, is characterized in that respectively: described conductor group both sides are respectively equipped with strengthening core, and described strengthening core is by the stranded bunchy of several thin zinc-coated wires; Described several zinc-coated wire diameter is 1mm-3mm; The described conductor group and the described strengthening core outside are enclosed with insulating barrier, belting layer successively, and conductor group behind the parcel belting layer and strengthening core outside integral body extrude one deck restrictive coating, and described restrictive coating is a flat.
2. hoisting equipment according to claim 1 is characterized in that with reinforced flat flexible cable: described insulating barrier adopts the squash type expressing technique, and material adopts butyronitrile polyvinyl chloride composite flame-proof elastomer.
3. hoisting equipment according to claim 1 is characterized in that with reinforced flat flexible cable: described belting layer material selection non-absorbent material twining package tape.
4. hoisting equipment according to claim 1 is characterized in that with reinforced flat flexible cable: described restrictive coating material adopts silicon rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201226882U CN202102764U (en) | 2011-04-23 | 2011-04-23 | Enhanced flat flexible cable for hoisting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201226882U CN202102764U (en) | 2011-04-23 | 2011-04-23 | Enhanced flat flexible cable for hoisting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202102764U true CN202102764U (en) | 2012-01-04 |
Family
ID=45388768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201226882U Expired - Fee Related CN202102764U (en) | 2011-04-23 | 2011-04-23 | Enhanced flat flexible cable for hoisting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202102764U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110993152A (en) * | 2018-10-03 | 2020-04-10 | 3M创新有限公司 | Flame-retardant flat cable |
| CN111785424A (en) * | 2020-08-10 | 2020-10-16 | 安徽华海特种电缆集团有限公司 | Silicon rubber insulation mobile flat cable |
| CN114864150A (en) * | 2022-05-19 | 2022-08-05 | 鹤山市安达电线厂 | Leakproof flat cable for deep well pump |
-
2011
- 2011-04-23 CN CN2011201226882U patent/CN202102764U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110993152A (en) * | 2018-10-03 | 2020-04-10 | 3M创新有限公司 | Flame-retardant flat cable |
| CN111785424A (en) * | 2020-08-10 | 2020-10-16 | 安徽华海特种电缆集团有限公司 | Silicon rubber insulation mobile flat cable |
| CN114864150A (en) * | 2022-05-19 | 2022-08-05 | 鹤山市安达电线厂 | Leakproof flat cable for deep well pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20150423 |
|
| EXPY | Termination of patent right or utility model |