CN102459052A

CN102459052A - Rope for elevators and process for producing same

Info

Publication number: CN102459052A
Application number: CN2009801597708A
Authority: CN
Inventors: 光井厚
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2009-06-08
Filing date: 2009-06-08
Publication date: 2012-05-16
Anticipated expiration: 2029-06-08
Also published as: KR20110127262A; WO2010143249A1; CN102459052B; EP2441723A4; KR101414330B1; EP2441723B1; EP2441723A1; JPWO2010143249A1; JP5404782B2

Abstract

In an elevator rope, a resin core rope coating body is coated onto an outer circumference of a core rope that is constituted by a fiber bundle. A plurality of steel strands are stranded onto an outer circumference of the core rope coating body.

Description

Riata for elevator and manufacturing approach thereof

Technical field

The present invention relates to Riata for elevator and manufacturing approach thereof as the main rope that suspends car for example in midair etc.

Background technology

In Riata for elevator in the past, many steel rope strands are by the periphery of twisted in the core rope that is made up of fibrous bundle.Generally speaking, the core rope constitutes through 3 core rope rope strands are carried out twisted, and these 3 core rope rope strands are respectively through constituting a large amount of yarn twisteds.In addition, with core rope strand and steel rope strand twisted the time,, core rope rope strand uprises thereby being compressed moulding density from periphery.Thus, make the form stable of rope, and, the gap (for example, with reference to patent documentation 1) between the steel rope strand suitably kept.

The prior art document

Patent documentation

Patent documentation 1: japanese kokai publication hei 5-262478 communique

Summary of the invention

The problem that invention will solve

In the Riata for elevator in the past of above-mentioned that kind; For the form stable that makes rope is also suitably kept the gap between the steel rope strand; Require to improve the packed density with respect to diameter (quality of per unit length) of core rope; Particularly when the diameter of rope became big, the accumulation quantitative change in the gap in the core rope was big, thereby was difficult to when making core rope diameter form predetermined size, guarantee the packed density of core rope.Relative therewith; When wanting to increase the diameter of each core rope rope strand and guaranteeing packed density; In order to suppress the diameter of rope when the twisted steel rope strand; Need bigger fastening force, can cause wound thus on the surface of steel rope strand, or damage the fiber of core rope, thereby diminish the intensity and the life-span of rope.

The present invention accomplishes for the problem that solves above-mentioned that kind; Its purpose is to obtain following Riata for elevator and manufacturing approach thereof: even under the bigger situation of rope diameter; Also can prevent the damage of core rope or steel rope strand, can improve the packed density of core rope simultaneously.

The means that are used to deal with problems

The Riata for elevator that the present invention relates to possesses: the core rope, and it is made up of fibrous bundle; The core rope cladding that resin is processed, it is coated on the periphery of core rope; And many steel rope strands, it is by the periphery of twisted in core rope cladding.

The manufacturing approach of the Riata for elevator that the present invention relates in addition, comprises: the core rope cladding that resin is processed is coated on the operation of the periphery of the core rope that is made up of fibrous bundle; With with the operation of many steel rope strand twisteds in the periphery of core rope cladding.

The manufacturing approach of the Riata for elevator that the present invention relates in addition, comprises: the operation that core rope strand cladding is coated on the periphery of many core rope rope strands that are made up of fibrous bundle respectively; With the operation of the mutual twisted of core rope rope strand that is coated with core rope rope strand cladding with formation core rope; Through making the core rope pass warmed-up mould, make the core rope rope strand cladding that the core rope strand is coated respectively integrated to form the operation of core rope cladding; And with the operation of many steel rope strand twisteds in the periphery of core rope cladding.

The effect of invention

About Riata for elevator of the present invention; The core rope cladding of being processed by resin owing to the core rope that is made up of fibrous bundle coats; And at its periphery twisted the steel rope strand is arranged, therefore, even under the bigger situation of rope diameter; Also can prevent the damage of core rope or steel rope strand, can improve the packed density of core rope simultaneously.

Description of drawings

Fig. 1 is the cutaway view of the Riata for elevator of embodiment 1 of the present invention.

Fig. 2 is the cutaway view of manufacturing state midway that the Riata for elevator of Fig. 1 is shown.

Fig. 3 is the cutaway view of the adding pressure type mould that when the resin-coated body to Fig. 2 carries out extrusion forming, uses.

Fig. 4 is the cutaway view of an example of tubular type mould.

Fig. 5 is the cutaway view of the 1st example that is illustrated in the form of the resin-coated body under the situation of the tubular type mould that has used Fig. 4.

Fig. 6 is the cutaway view of the 2nd example that is illustrated in the form of the resin-coated body under the situation of the tubular type mould that has used Fig. 4.

Fig. 7 is the cutaway view of manufacturing state midway that the Riata for elevator of embodiment 2 of the present invention is shown.

Fig. 8 is the cutaway view of manufacturing state midway that the Riata for elevator of embodiment 3 of the present invention is shown.

Fig. 9 illustrates that the core rope that makes Fig. 8 passes warmed-up mould and the cutaway view of state after the moulding.

Figure 10 is the lateral plan of an example that the lift appliance of the Riata for elevator of having used

embodiment

1,2 or 3 is shown.

The specific embodiment

Below, with reference to accompanying drawing the mode that is used for embodiment of the present invention is described.

Embodiment 1

Fig. 1 is the cutaway view of the Riata for elevator of embodiment 1 of the present invention.Among the figure, core rope 1 is arranged in the center configuration of Riata for elevator (wirerope).Core rope 1 constitutes through with three core rope rope strand 2 mutual twisteds and from periphery three core rope rope strands 2 being pressurizeed.Each core rope rope strand 2 is made up of a large amount of yarns, and said yarn constitutes through making the fiber bunchy.

The core rope cladding 3 that the outer periderm resin of core rope 1 is processed coats.Use poly-vinyl for example or or polypropylene etc. as the material of core rope cladding 3.

Many (is eight at this) steel rope strands 4 are by the periphery of twisted in core rope cladding 3.Each steel rope strand 4 is made up of many steel wire twisteds.More detailed, steel rope strand 4 has: core wire, and it is disposed at the center; Interlayer, it is by being constituted by the many middle wire rods of twisted in the periphery of core wire; And outer, it is by being constituted by the many periphery wire rods of twisted in the periphery of interlayer.The diameter of middle wire rod is all littler than the diameter of core wire and periphery wire rod.

Core rope cladding 3 is between steel rope strand 4 adjacent one another are.In addition, core rope cladding 3 is also between steel rope strand 4 and core rope 1.In addition, between the core rope rope strand 2 adjacent one another are of the periphery of core rope 1, be formed with a plurality of groove 1a that the cross section becomes V word shape, core rope cladding 3 also enters in the groove 1a.

Next, the manufacturing approach to the Riata for elevator of Fig. 1 describes.Under the situation of the Riata for elevator of shop drawings 1, at first as shown in Figure 2, with cross section conglobate three cores rope rope strand 2 mutual twisteds, and coat core cladding 3 of restricting in its periphery.At this moment, the extrusion forming that carries out through the adding pressure type mould 5 that uses that kind shown in Figure 3 of core rope cladding 3 is coated on the periphery of core rope 1.

Center in adding pressure type mould 5 is provided with the core rope that supplies core rope 1 to run through insertion and runs through insertion passage 5a.In addition, the core in adding pressure type mould 5 rope runs through the radial outside that inserts passage 5a and is provided with resin stream 5b cylindraceous.(left side of Fig. 3) dwindles the diameter of resin stream 5b gradually in the downstream, and the downstream end of resin stream 5b runs through insertion passage 5a with the core rope and converges in adding pressure type mould 5.That is, one side flow into the resin pressurized periphery that is coated on core rope 1 in adding pressure type mould 5 in the resin stream 5b on one side.Thus, make and also be filled with resin in the gap of periphery of core rope 1.

Relative therewith; Under the situation of using tubular type mould (shell type (Sheath) mould) 6 shown in Figure 4; Resin stream 6b does not run through insertion passage 6a with the core rope and converges in tubular type mould 6, but will be coated on the periphery of core rope 1 at the pitch tube after the moulding of the outside of hose type mould 6 (crust).Therefore, be difficult to resin is filled to the gap of the periphery of core rope 1, core rope cladding 3 becomes the form of Fig. 5 or that kind shown in Figure 6.That is, in Fig. 5, core rope cladding 3 forms cylindric, and in Fig. 6, core rope cladding 3 becomes the state that is attached to the periphery of core rope 1 with fixing thickness, and the effect of the packed density of the two raising core rope is all less.

Be coated on the periphery of core rope 1 at cladding 3 that core is restricted after, steel rope strand 4 is carried out twisted.At this moment, thus core rope 1 is compressed moulding across core rope cladding 3 from periphery realizes densification.In addition, core rope cladding 3 gets between the steel rope strand 4 adjacent one another are.

In such Riata for elevator; Because the periphery at core rope 1 is coating core rope cladding 3; Therefore, can carry out compression forming across the core 3 pairs of cores of the cladding rope 1 of restricting, even under the bigger situation of rope diameter; Also can prevent the damage of core rope 1 or steel rope strand 4, can improve the packed density of core rope 1 simultaneously.

In addition; When steel rope strand 4 was carried out twisted, even be not fastened to necessary above or do not make 1 distortion of core rope, core rope cladding 3 also was filled to the gap of the periphery of core rope 1; Therefore rigidity that can holding core rope 1 also can prevent the damage of core rope 1 or steel rope strand 4 thus.

In addition; Because between 3 distortion of core rope cladding and the entering steel rope strand 4 or between the core rope rope strand 2; And with in the past only be that the core rope of fibre core is compared, the rigidity of core rope of the present invention is higher and be not easy distortion, therefore; The contact pressure of steel rope strand 4 and core rope rope strand 2 can be reduced, thereby fretting wear (fretting wear) can be reduced.

In addition; If the restrict thickness of cladding 3 of core is not increased to more than necessity; Then because repeated bending and can produce small crackle, thereby can also make the lubricating oil that core rope 1 is contained be supplied to steel rope strand 4 and keep good lubricating status from this gap at restrict cladding 3 of core.

In addition, for the lubricating oil that core rope 1 is contained is supplied to steel rope strand 4, also can at core rope cladding 3 small hole be set in advance.

Embodiment 2

Below, Fig. 7 is the cutaway view of manufacturing state midway that the Riata for elevator of embodiment 2 of the present invention is shown.In this example, core rope rope strand cladding 7 is carried out up to the periphery of each core rope rope strand 2, and the periphery of the core rope 1 that forms at core rope rope strand 2 twisteds that had clad by this forms core rope cladding 3.Core rope rope strand cladding 7 is by constituting with core rope cladding 3 identical resins.

The extrusion forming that core rope rope strand cladding 7 carries out through the tubular type mould 6 that uses that kind shown in Figure 4 is coated on the periphery of core rope rope strand 2.In addition, core rope cladding 3 utilizes the adding pressure type mould 5 of that kind shown in Figure 3 to come moulding.Other structure is identical with embodiment 1, and steel rope strand 4 is by the periphery of twisted in core rope cladding 3.

Core rope 1 is impregnated with lubricating oil, under the situation of moulding through adding pressure type mould 5 because resin pressure acts on core rope 1, therefore, easily at the mould part of extrusion press with pounding out of lubricant.Relative therewith, under the situation of tubular type mould 6 since be with moulding pipe be overlying on the forming method of core rope rope strand 2 in the external packets of mould, therefore, hardly can be with pounding out of lubricant when moulding.In addition, the cross section of rope strand 2 is to compare more approaching circular shape with core rope 1 because core is restricted, and therefore, even carry out moulding through tubular type mould 6, also compares almost not variation with the situation of carrying out moulding through adding pressure type mould 5 with respect to the packed density of diameter.Therefore, so above-mentioned through constituting, can access the core rope 1 that in the bitumen content of having kept core rope 1, has increased packed density.

Embodiment 3

Below, Fig. 8 and Fig. 9 are the cutaway views of manufacturing state midway that the Riata for elevator of embodiment 3 of the present invention is shown.In this example, as shown in Figure 8, core rope rope strand cladding 7 is carried out up to the periphery of each core rope rope strand 2, and this core rope rope strand 2 that has clad is by twisted.In the moulding of core rope rope strand cladding 7, preferably use tubular type mould 6 with embodiment 2 identically.Then, thus making the core rope of Fig. 8 pass warmed-up mould is shaped to form shown in Figure 9.Thus, thus coating the core rope rope strand cladding 7 integrated each other core rope claddings 3 that form of core rope rope strand 2 respectively.Other structure is identical with embodiment 1, and steel rope strand 4 is by the periphery of twisted in core rope cladding 3.

Through such structure, also can constitute the packed density height and keep the core rope of bitumen content.

At this, Figure 10 is the lateral plan of an example that the lift appliance of the Riata for elevator of having used

embodiment

1,2 or 3 is shown.Among the figure, be provided with machine room 12 on the top of hoistway 11.In machine room 12, be provided with support 13.Towing machine 14 is supported on the support 13.Towing machine 14 has rope sheave of driving 15 and tractor main body 16.Tractor main body 16 has: the towing machine motor, and it makes and drives rope sheave 15 rotations; And traction machine brake, it is braked the rotation that drives rope sheave 15.

Diversion sheave 17 is installed in support 13.Many Riata for elevator 18 as suspension element are driven rope sheave 15 and diversion sheave 17 around being hung on.The part that the ratio driving rope sheave 15 of Riata for elevator 18 leans on counterweight 20 sides is around being hung on diversion sheave 17.

Car 19 is suspended to an end of Riata for elevator 18.That is, car 19 is suspended in the hoistway 11 by Riata for elevator 18 in a side that drives rope sheave 15.Counterweight 20 is suspended to the other end of Riata for elevator 18.That is, counterweight 20 is suspended in midair by Riata for elevator 18 at the opposite side that drives rope sheave 15.

In hoistway 11, be provided with: a pair of car guide rail 21, it is used to guide the up-down of car 19; With a pair of counterweight guide rail 22, it is used to guide the up-down of counterweight 20.Be equipped with car guide rail 21 at car 19 and engage so that the emergency braking device 23 that car 19 promptly stops.

In addition, the type of having used the lift appliance of Riata for elevator of the present invention is not limited to the type of Figure 10.For example, the present invention also can be applied to lift appliance or the double-deck elevator etc. of lift appliance, the multi-car system of machine-roomless lift, 2: 1 baudriers.

Claims

1. Riata for elevator, it possesses:

The core rope, it is made up of fibrous bundle;

The core rope cladding that resin is processed, it is coated on the periphery of said core rope; And

Many steel rope strands, it is by the periphery of twisted in said core rope cladding.

2. Riata for elevator according to claim 1, wherein,

Said core rope cladding enters between the said steel rope strand adjacent one another are.

3. Riata for elevator according to claim 1, wherein,

Said core rope has by many core rope rope strands of mutual twisted,

Between the said core rope rope strand adjacent one another are of the periphery that said core is restricted, be formed with a plurality of grooves that the cross section becomes V word shape,

Said core rope cladding enters in the said groove.

4. Riata for elevator according to claim 1, wherein,

Said core rope has by many core rope rope strands of mutual twisted,

Periphery at said each core rope rope strand is coated with the core rope rope strand cladding that resin is processed.

5. the manufacturing approach of a Riata for elevator, it comprises:

The core rope cladding that resin is processed is coated on the operation of the periphery of the core rope that is made up of fibrous bundle; With

With the operation of many steel rope strand twisteds in the periphery of said core rope cladding.

6. the manufacturing approach of Riata for elevator according to claim 5, wherein,

Carry out of the coating of said core rope cladding through the extrusion forming that uses the adding pressure type mould to carry out to said core rope.

7. the manufacturing approach of Riata for elevator according to claim 5, wherein,

After the periphery that core rope strand cladding is coated on many core rope rope strands that constitute by fibrous bundle respectively, thereby the mutual twisted of said core rope rope strand that is coated with said core rope rope strand cladding is constituted said core rope.

8. the manufacturing approach of a Riata for elevator, it comprises:

Core rope strand cladding is coated on the operation of the periphery of many core rope rope strands that constitute by fibrous bundle respectively;

With the operation of the mutual twisted of said core rope rope strand that is coated with said core rope rope strand cladding with formation core rope;

Through making said core rope pass warmed-up mould, make the said core rope rope strand cladding that said core rope rope strand is coated respectively integrated to form the operation of core rope cladding; And

9. according to the manufacturing approach of claim 7 or 8 described Riata for elevator, wherein,

Carry out of the coating of said core rope rope strand cladding through the extrusion forming that uses the tubular type mould to carry out to said core rope rope strand.