CN201927388U

CN201927388U - Anti-moving and easy-stripping rubber jacketed flexible cable for lifter

Info

Publication number: CN201927388U
Application number: CN2010206770002U
Authority: CN
Inventors: 冯春香; 王晓荣; 刘杨; 刘明辉; 陆朝燕
Original assignee: Hengyang Hengfei Cable Co Ltd
Current assignee: Hengyang Hengfei Cable Co Ltd
Priority date: 2010-12-23
Filing date: 2010-12-23
Publication date: 2011-08-10
Anticipated expiration: 2020-12-23

Abstract

The utility model provides an anti-moving and easy-stripping rubber jacketed flexible cable for a lifter, which comprises an insulating power cable core 1, an insulating ground cable core 2, a filling layer 3, a wrapping layer 4 and a sheath layer 5, wherein the thickness of the insulating power cable core 1 is as the same as that of the insulating ground cable core 2, the filling layer 3 in the clearance of a cabled and twisted cable core is filled with an unvulcanized rubber strip, the wrapping layer 4 out of the cabled cable core is wrapped in a clearance way by non-woven fabrics with the thickness of 0.07mm, the clearance is 0.5 bandwidth, and the rubber sheath layer 5 is extruded out of the wrapped and cabled cable core. The flexible cable is filled by the unvulcanized rubber strip, and the cable core is externally wrapped by the clearance type non-woven fabrics, so that the cable core, the unvulcanized rubber strip and an external rubber sheath are formed into a whole body, the bending resistance and the twisting resistance of the cable are greatly improved, the service life of the cable is prolonged, and a joint of the cable is conveniently stripped off.

Description

A kind of lift is easily peeled off rubber sleeve flexible cable with anti-moving

Technical field

The utility model relates to the rubber sleeve flexible cable that a kind of building construction hoist is used, and particularly a kind of lift is easily peeled off rubber sleeve flexible cable with anti-moving.

Background technology

The cable that uses on the building construction hoist, owing to use out of doors for a long time, good high-and low-temperature resistance performance not only will be arranged, and because often frequent crooked back and forth the moving of this cable, and be accompanied by the transformation of wind direction and frequent reversing, therefore this cable anti-moved and anti-ly reverse requirement and also require very high.

Structure such as Fig. 1 of existing multicore rubber sleeve flexible cable, shown in 2, comprise insulation power core 1, Ground wire with insulation ocver core 2, packed layer 3, lapping layer 4 and restrictive coating 5, the conductor of cable adopts the 5th class flexible conductor in the GB/T3956-2008 standard, earlier conductor bundle is twisted into bundle strand, again some bursts of bundle strands are twisted into stranded conductor again, periphery extrude again insulating barrier insulation power core 1 or Ground wire with insulation ocver core 2, insulation power core 1 is twisted into into cable core with Ground wire with insulation ocver core 2 strandings, after packed layer 3 is filled in the cable core space, become the cable core periphery lapping layer 4 usefulness 0.15mm～0.20mm nonwoven fabrics eclipsed form is wrapped, extrude again rubber sheath layer 5 rubber sleeve flexible cable.

The weak point of the rubber sleeve flexible cable of this structure is:

1, the useful life of cable is short, peel off difficulty during cable joint: existing cable is because packed layer all is to adopt fiber to fill to keep the cable rounding, the stranding periphery adopts 0.15～0.20mm nonwoven fabrics overlapping wrapped, insulation power core and the lay ratio of Ground wire with insulation ocver core when stranding is stranded are bigger than normal, be generally 12～14 times, cause insulating power core and Ground wire with insulation ocver core and rubber sheath layer is not tight, cable is frequent crooked and when reversing, occurrence positions moves separately, cause cable to play bag, conductor break, the rubber sheath layer damages, and greatly shortens the useful life of cable; And owing to adopt nonwoven fabrics overlapping wrapped, peel off difficulty during cable joint in construction, work brings very big inconvenience to joint;

2, the ground core of cable very easily fractures: existing cable since the nominal cross of ground core less than the nominal cross of power core, and the thickness of ground wire core insulation layer is less than the thickness of power line core insulation layer, make the external diameter of Ground wire with insulation ocver core less than the external diameter of insulation power core, cause this cable discontinuity in use, very easily cause the ground core to fracture and shorten the life cycle of cable;

3, the pliability of cable can not satisfy the frequently mobile and anti-requirement of reversing of this cable: existing cable is because the lay ratio that conductor bundle is twisted into when restrainting strand is 25～30 times, some bursts of bundle strands when being twisted into stranded conductor again the internal layer lay ratio be that 16～19 times, outer lay ratio are 14～16 times, the internal layer lay ratio and the outer lay ratio of lay ratio, stranded conductor of promptly restrainting strand is all bigger than normal, causes the pliability of conductor can not satisfy this cable and frequently moves and the anti-requirement of reversing.

Summary of the invention

The purpose of this utility model is the above-mentioned deficiency that overcomes prior art, and provides a kind of pliability height of cable, the lift of long service life easily to peel off rubber sleeve flexible cable with anti-moving.

The technical solution of the utility model is: a kind of lift is easily peeled off rubber sleeve flexible cable with anti-moving, comprise insulation power core, Ground wire with insulation ocver core, packed layer, nonwoven fabrics lapping layer and restrictive coating, insulation power core is twisted into into cable core with Ground wire with insulation ocver core stranding, the packed layer in cable core space, the stranded back of stranding adopts the rubber strip that does not vulcanize to fill, become the lapping layer of cable core periphery wrapped with the thick nonwoven fabrics clearance-type of 0.07～0.15mm, the rubber sheath layer is extruded in the periphery of the one-tenth cable core of nonwoven fabrics after wrapped.

Conductor adopts the 5th class flexible conductor in the GB/T3956-2008 standard, earlier conductor bundle is twisted into bundle strand, and lay ratio was 12～16 times when conductor bundle was twisted into bundle strand; Some bursts of bundle strands are when being twisted into stranded conductor again, the strand strand to multiple strand strand to opposite, the ectonexine strand is on the contrary, the internal layer lay ratio is 10～14 times when twisting again; Outermost layer bundle strand dextrad bundle strand, left-hand twists again when being twisted into stranded conductor again, and lay ratio is 8～12 times; The stranded conductor periphery extrudes insulating barrier again.

Insulation power core is outer through identical with the Ground wire with insulation ocver core.

Insulation power core is twisted into into cable core with Ground wire with insulation ocver core stranding, and becoming the lay ratio of cable core when stranding is stranded is 8～10 times.

The utility model adopts the half finished rubber bar to fill because cable core is filled, cable core external application clearance-type nonwoven fabrics is wrapped, extrude external rubber sleeve again, make cable core with vulcanized rubber bar and external rubber sleeve do not become as a whole, and the pitch diameter of dwindling bundle strand when is twisted into the lay ratio of stranded conductor again, increase the thickness of ground wire core insulation layer, make that the external diameter of Ground wire with insulation ocver core is consistent with the external diameter of insulation power core, greatly improved the anti-bending of cable, antitorque commentaries on classics performance, through evidence: utility model comes and goes 10000 antitorque commentaries on classics tests that move around through the rubber machine that circumnutates, cable surface did not ftracture, through 5 minutes withstand voltage 2.5U ₀Do not puncture, the long service life of cable is peeled off during cable joint conveniently.

Below be example with the four-core rubber sleeve flexible cable, with embodiment detailed content of the present utility model is further described in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is the structural representation of existing four-core rubber sleeve flexible cable;

Fig. 2 is the cross-sectional view of existing four-core rubber sleeve flexible cable;

Fig. 3 is the structural representation of the utility model embodiment 1;

Fig. 4 is a cross-sectional view of the present utility model;

Fig. 5 is the structural representation of the utility model embodiment 2.

Embodiment

Embodiment 1:

Shown in Fig. 3,4: a kind of lift is easily peeled off the four-core rubber sleeve flexible cable with anti-moving, comprise that three thoroughly do away with edge power core 1, an eradication edge ground core 2, packed layer 3, lapping layer 4 and restrictive coating 5, conductor adopts thin copper wire, diameter is 0.15 ~ 0.30mm, earlier conductor bundle is twisted into bundle strand, lay ratio was 12-16 times when conductor bundle was twisted into bundle strand; Some bursts of bundle strands are when being twisted into stranded conductor again, the strand strand to multiple strand strand to opposite, the ectonexine strand is on the contrary, when twisting again the internal layer lay ratio be 10-14 doubly, outermost layer bundle strand dextrad bundle strand, left-hand twists again when being twisted into stranded conductor again, lay ratio be 8-12 doubly; The stranded conductor periphery extrude again insulating barrier insulation power core 1 or Ground wire with insulation ocver core 2, that is: insulation power core 1 is made up of power core 11 and power line core insulation layer 12, Ground wire with insulation ocver core 2 is made up of ground core 21 and ground wire core insulation layer 22, the nominal cross of ground core 21 is less than the nominal cross of power core 11, the thickness of ground wire core insulation layer 22 is greater than the thickness of power line core insulation layer 12, insulation power core 1 is outer through identical with Ground wire with insulation ocver core 2, to increase the stability of the construction of cable; Insulation power core 1 is twisted into into cable core with Ground wire with insulation ocver core 2 strandings, lay ratio was 8-10 times when stranding was stranded, after stranding is stranded, the packed layer 3 in cable core space adopts the rubber strip that does not vulcanize to fill, become the lapping layer 4 of cable core periphery to adopt the thick nonwoven fabrics clearance-type of 0.07mm wrapped, the gap is 0.5 bandwidth, is convenient to cable core and restrictive coating 5 is combined closely, greatly increase the anti-mobility and the antitorque commentaries on classics of cable, make things convenient for the joint of cable in the construction; Rubber sheath layer 5 is extruded in the periphery of the one-tenth cable core after wrapped, and restrictive coating 5 adopts the synthetic rubber of hot strengths 10 ~ 15MP, to increase the ability that cable bears big external force.

Embodiment 2:

As shown in Figure 5: a kind of lift is easily peeled off the four-core rubber sleeve flexible cable with anti-moving, and comprises that three thoroughly do away with edge power core 1, an eradication edge ground core 2, packed layer 3, lapping layer 4 and restrictive coating 5; Become the lapping layer 4 of cable core periphery to adopt the thick nonwoven fabrics clearance-type of 0.15mm wrapped, the gap is 1 bandwidth.All the other structures are identical with embodiment 1.

Claims

1. a lift is easily peeled off rubber sleeve flexible cable with anti-moving, comprise insulation power core, Ground wire with insulation ocver core, packed layer, nonwoven fabrics lapping layer and restrictive coating, insulation power core is twisted into into cable core with Ground wire with insulation ocver core stranding, the rubber sheath layer is extruded in the periphery of the one-tenth cable core of nonwoven fabrics after wrapped, the packed layer that it is characterized in that cable core space, the stranded back of stranding adopts the rubber strip that does not vulcanize to fill, and becomes the lapping layer of cable core periphery wrapped with the thick nonwoven fabrics clearance-type of 0.07～0.15mm.

2. lift according to claim 1 is easily peeled off rubber sleeve flexible cable with anti-move, and lay ratio is 12～16 times when it is characterized in that conductor bundle is twisted into bundle strand; Some bursts of bundle strands are when being twisted into stranded conductor again, the strand strand to multiple strand strand to opposite, the ectonexine strand is on the contrary, the internal layer lay ratio is 10～14 times when twisting again; Outermost layer bundle strand dextrad bundle strand, left-hand twists again when being twisted into stranded conductor again, and lay ratio is 8～12 times.

3. lift according to claim 1 and 2 is easily peeled off rubber sleeve flexible cable with anti-move, it is characterized in that insulating power core and Ground wire with insulation ocver core outer through identical.

4. lift according to claim 1 and 2 is easily peeled off rubber sleeve flexible cable with anti-moving, and the power core that it is characterized in that insulating is twisted into into cable core with Ground wire with insulation ocver core stranding, and becoming the lay ratio of cable core when stranding is stranded is 8～10 times.

5. lift according to claim 3 is easily peeled off rubber sleeve flexible cable with anti-moving, and the power core that it is characterized in that insulating is twisted into into cable core with Ground wire with insulation ocver core stranding, and becoming the lay ratio of cable core when stranding is stranded is 8～10 times.