CN101324033B - Stretching assembly of elevator apparatus - Google Patents
Stretching assembly of elevator apparatus Download PDFInfo
- Publication number
- CN101324033B CN101324033B CN200710093869A CN200710093869A CN101324033B CN 101324033 B CN101324033 B CN 101324033B CN 200710093869 A CN200710093869 A CN 200710093869A CN 200710093869 A CN200710093869 A CN 200710093869A CN 101324033 B CN101324033 B CN 101324033B
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- China
- Prior art keywords
- stretching assembly
- supporting body
- core wires
- bearing core
- inclusion enclave
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Classifications
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0673—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration
- D07B1/0686—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration characterised by the core design
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/22—Flat or flat-sided ropes; Sets of ropes consisting of a series of parallel ropes
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2501/00—Application field
- D07B2501/20—Application field related to ropes or cables
- D07B2501/2007—Elevators
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention discloses a stretching component of elevator devices, and comprises a plurality of supporting bodies that have clad and support core wires and an including body that includes the supporting body, wherein, the including body takes a shape of a flat zonal body structure, and the width of the including body is at least larger than the thickness of the including body; the clad of the supporting body and the including body are made of non-metallic materials, and the supporting body and the including body can move relatively; the supporting body is arranged along the horizontal direction at intervals. The stretching component of the invention can eliminate the deformation influence of the including body, improves the service life of the stretching component, has the advantages of simple structure, long service life and good friction property, etc., and leads elevator systems to be more flexible.
Description
Technical field
The present invention relates to a kind of stretching assembly that is used for the traction elevator device.
Background technology
In the lift appliance that the tradition hauling block drives, stretching assembly is a steel wire rope.The use of steel wire rope has certain restriction, like the tractive effort limits between steel wire rope and the hauling block, and the bending property of steel wire rope and the requirement of fatigue behaviour.Because the restriction of tractive force often need increase the cornerite between steel wire rope and the hauling block in order to increase tractive force, perhaps on hauling block, slots.The life-span of steel wire rope will be reduced.Owing to the bending property of steel wire rope and the requirement of fatigue behaviour, the minimum of steel wire rope uses diameter to be 8mm (GB7588-2003 standard code), and the diameter of hauling block is at least 40 times of wirerope diameter simultaneously.Therefore the diameter minimum of hauling block is 320mm.So also define the output torque requirement of motor.Along with the diameter of hauling block is big more, the output torque of motor requires also big more.The overall volume of motor also will be big more.Cause the difficult arrangement of motor in machine room or hoistway.The manufacturing cost of motor will increase simultaneously, and corresponding building cost also will increase.
In order to address the above problem, Chinese invention patent specification CN1222656C discloses a kind of tension member of elevator on (October 12 2005 day for announcing).The tension member of this elevator is a shoestring.This shoestring has the inclusion enclave of being processed by nonmetallic materials; This inclusion enclave wraps up the bearing core wires that a plurality of metal materials are processed, and wherein bearing core wires is formed by 49 finer wire strand systems.The diameter of bearing core wires is 1.6mm.Because the diameter of bearing core wires is smaller, so the diameter of hauling block can be controlled at 100mm.The output torque of motor requires the motor output torque of more traditional rope traction elevator to require to reduce greatly like this.The volume of corresponding motor also dwindles.Therefore in the civil engineering of elevator device was arranged, the space that motor occupies also greatly reduced.Although this invention can be dwindled the volume size of motor, it has some shortcomings.At first; Because the inclusion enclave and the bearing core wires of this tension member closely link together; Therefore the layout of tension member can only be to be arranged in parallel with hauling block and leading block; Otherwise will produce bigger internal stress in the inclusion enclave of tension member, thereby quicken the wearing and tearing of the inclusion enclave of tension member, and make the life-span of tension member reduce greatly.In the lift product of reality, the installation of tension member can not be arranged in parallel with hauling block and leading block fully, so there is such internal stress inevitably in the inclusion enclave inside of tension member, thereby the life-span of tension member is affected.Secondly, because the bearing core wires TENSILE STRENGTH of tension member can not be consistent, thereby bearing core wires is when bearing external load, and their deflection is inconsistent.To cause the inner meeting of the inclusion enclave that is connected with bearing core wires to produce different deformation like this, produce corresponding internal stress, influence the life-span of tension member.Once more, because the width dimensions of tension member is general bigger.So basically, require very high to being arranged in parallel of tension member and hauling block and diversion sheave.Otherwise the inclusion enclave that will cause tension member produces very large internal stress, will speed up the wearing and tearing of inclusion enclave, thereby reduces the service life of tension member.
Chinese invention patent specification CN1238595C discloses a kind of rope of lift appliance on (January 25 2006 day for announcing).This rope is by height friction resin material parcel.The coefficient of friction of this resin material is more than 0.2.The core rope of this rope is not directly contact each other, so can not produce friction between the core rope, thereby can reduce the ratio of rope diameter and traction sheave diameter, is about 1/27.The moment of motor requires to reduce like this, and the volume of motor can reduce.Although this invention has realized reducing of motor moment because the diameter of core rope is bigger, so the diameter of hauling block reduce few.Simultaneously, the structural requirement hauling block of this rope must have same grooving structure.Have the noise that meshes between rope and the grooving like this between rope and the hauling block.In addition,, thereby produce bigger contact pressure, cause the abrasion of rope inside wire rope core to aggravate, influence the life-span of rope at the rope strand of the inner wire rope core of rope because rope is little with the area that the grooving of hauling block contact.
Chinese invention patent ublic specification of application CN1659094A (open day on August 24th, 2005) discloses a kind of ropes that is provided with inclusion enclave.The wire rope core of this rope is the less steel wire rope of diameter.The inclusion enclave that a sheath is arranged in the outer setting of wire rope core.The material of sheath is the nonmetallic materials of Shore hardness between A80～95.This invention has some shortcomings.At first, there is gearing noise between rope and the traction sheave.Secondly, because the wire rope core diameter is less, the rope radical that must increase elevator device increases, and therefore causes the complexity of system layout to increase.And along with the increase of rope radical, the vibration of rope is more obvious, thereby is delivered to the corresponding increase of vibration of lift car, causes the noise of car bigger.Once more, the contact pressure between rope and the traction sheave increases, and causes the contact pressure of inclusion enclave and wire rope core to increase, thereby makes the life-span of inclusion enclave and wire rope core reduce, and influences the life-span of rope.
Summary of the invention
The technical problem that the present invention will solve provides a kind of stretching assembly of lift appliance, its can eliminate the effects of the act deformation of inclusion enclave, the service life of improving stretching assembly.
For solving the problems of the technologies described above, the stretching assembly of lift appliance of the present invention comprises a plurality of supporting body and inclusion enclaves that wrap up said supporting body with bearing core wires of clad; The profile of wherein said inclusion enclave is a flat shoestring structure, and the width dimensions of this inclusion enclave is at least greater than its gauge; The clad and the inclusion enclave of said supporting body are processed by nonmetallic materials, can relative motion between supporting body and the inclusion enclave; Said supporting body along continuous straight runs arranged spaced.
The cross section of said inclusion enclave has except that the hole of a plurality of supporting bodies of parcel, between the hole of adjacent supporting body, has a hole at least.
The bearing core wires optical diameter of said supporting body is 2.5～5mm.
The clad of said supporting body is full of above-mentioned heart yearn, and links together securely, is separated by clad between the strand of bearing core wires simultaneously.
The radical of said supporting body is at least 3, is at most 6.
Since adopt said structure, can relative motion between supporting body and the inclusion enclave.Can eliminate like this owing to different TENSILE STRENGTH between the supporting body, cause the relative deformation between the different bearer body, thereby influence the deformation of inclusion enclave.Therefore have a hole between the hole because of adjacent supporting body at least, even deviation occurs when the installation of stretching assembly, the internal stress that deviation thus causes the rope inclusion enclave will be eliminated in this hole.Have a hole at least between the hole because of adjacent supporting body simultaneously,, increased the flexibility that elevator device is arranged like this so there is no need strict being arranged in parallel between stretching assembly and hauling block and the diversion sheave.
The radical of supporting body is few, thereby the width of stretching assembly is not wide.If do not have the hole between the hole because of adjacent supporting body like this; Said stretching assembly also can overcome because of there not being strict being arranged in parallel between stretching assembly and hauling block and the diversion sheave; And the internal stress of the stretching assembly that brings, thereby there is not great influence the fatigue life of stretching assembly basically.
Traction sheave needn't otch, does not have gearing noise between stretching assembly and the traction sheave like this.In addition because the bearing core wires diameter of stretching assembly supporting body is 2.5～5mm, so the diameter of traction sheave can be accomplished 75～150mm.Therefore the output torque of motor requires to reduce greatly.Simultaneously because the diameter of bearing core wires is less, bigger with respect to its diameter itself and inclusion enclave contact area.The contact pressure of bearing core wires reduces like this, helps improving the life-span of supporting body.The contact pressure of inclusion enclave is also smaller in addition, and the life-span can be guaranteed.Because the strand of bearing core wires is separated by clad, the friction between the strand reduces, thereby the compact stress between the strand reduces, and helps further improving the life-span of bearing core wires, and the life-span of stretching assembly also improves greatly.
In the stretching assembly a plurality of supporting bodies are arranged, the vibration of stretching assembly obviously reduces like this, thereby the vibration that is transferred to car also will reduce, and the noise in the car also can reduce.
Description of drawings
Below in conjunction with accompanying drawing and preferred embodiment the present invention is done further detailed explanation:
Fig. 1 is the sectional view of the stretching assembly of first embodiment of the invention lift appliance;
Fig. 2 is the sectional view of the stretching assembly of second embodiment of the invention lift appliance.
Embodiment one.
Referring to shown in Figure 1, described stretching assembly comprises inclusion enclave 1, supporting body 2, and supporting body 2 is made up of clad 3 and bearing core wires 4.Bearing core wires 4 outer is with 9 strands of strands.There is a strands in central authorities in bearing core wires 4.Each strand strand of bearing core wires 4 is to be formed through parallel afterturn by many metal core wire.Contact between the metal core wire of each strand is the line contact like this, so the compact stress between the metal core wire reduces.Bearing core wires 4 can keep good profile simultaneously.In order to improve the bending fatigue strength of bearing core wires 4, metal core wire requires thinner, is about 0.15～0.6mm.In order further to increase the flexible life of bearing core wires 4, the diameter ratio of the traction sheave that the diameter of bearing core wires 4 is mated is 30 or bigger in addition.In order to guarantee that bearing core wires 4 has higher rupture strength, metal core wire must have higher draw tensile strength.In embodiments of the present invention, the TENSILE STRENGTH of metal core wire is greater than 2000N/mm
2
The material of clad 3 separates each strand of bearing core wires 4.Therefore there is not compact stress basically between each strand of bearing core wires 4.The bending fatigue strength of bearing core wires 4 is further improved like this.Clad 3 closely links together with bearing core wires 4.The material that clad 3 adopts is an elastomeric material, is preferably thermoplastics type's polyurethane resin material.Certainly the material of clad 3 is not limited thereto, and can suitably select according to concrete service condition.
The set inside of stretching assembly has 4 bearing core wires 4.The width of stretching assembly is not wide.If the diameter of general bearing core wires 4 is 2.5mm, the width with stretching assembly of 4 bearing core wires 4 is 13mm～17mm, and its gauge is 3.5mm～4mm.Working as the stretching assembly and the layout of hauling block and diversion sheave does not like this have the parallel of strictness, does not have influence the fatigue life of stretching assembly basically.Stretching assembly is than the r c steel wire rope of circle in the embodiment of the present invention, and inclusion enclave 1 is less with the pressure ratio that clad 3 receives, so inclusion enclave 1 has better wear resistance and fatigue life with clad 3.
For the gauge of control stretching assembly, the optical diameter of the bearing core wires 4 of supporting body 2 is 2.5mm～5mm; The optical diameter ratio of the gauge of clad 3 and bearing core wires 4 is greater than 4, and preferred 6～12; The difference in diameter of the gauge of inclusion enclave 1 and supporting body 2 is 0.5～1.5mm.Because the optical diameter of bearing core wires 4 is 2.5mm～5mm, so the diameter of traction sheave can be controlled at 75～150mm.Therefore the moment of whole motor requires to reduce greatly, thereby makes the size of motor dwindle greatly, and causes the layout of elevator device very convenient.
As shown in Figure 1, the material of inclusion enclave 1 is a resin material, and the coefficient of friction between the material of this selection and the traction sheave is controlled between 0.2～0.5.For the ease of producing, it is lower than the molten point of the material of the clad 3 of supporting body 2 that the material of inclusion enclave 1 dissolves point.Can supporting body 2 be made in advance like this, because the molten molten point than clad 3 of inclusion enclave 1 is low, when inclusion enclave 1 was liquid condition, clad 3 can keep good geomery.The appearance and size of whole like this stretching assembly is guaranteed easily.
Bearing core wires 4 also can be processed by nonmetallic materials, for example the thermoplastic resin of acrylic resin, polyvinyl resin or ethene etc., or the synthetic fiber high density material of high-intensity aromatics polyamide fibre or polypropylene fibre etc.Simultaneously, the supporting body 2 of stretching assembly can be made up of supporting body with metal material and the supporting body mixing with nonmetallic materials.Help overcoming the not enough problem of lateral stiffness of the supporting body that has only the nonmetallic materials formation like this, the TENSILE STRENGTH of tensile member can be guaranteed simultaneously.
In order to increase the fire resistance of stretching assembly, in inclusion enclave 1, add flame-retardant materials.
It is outer 3 times of carrying or higher that bear at least that the rupture strength of stretching assembly requires.Even the purpose of doing like this is the supporting body 2 in the stretching assembly fracture is fully arranged, other supporting body 2 still has the operation of enough strength support systems.
Embodiment two.
Referring to shown in Figure 2, be with the first embodiment difference, 3 holes 5 are set among this embodiment.Hole 5 is between adjacent supporting body 2.The effect in hole 5 is, stretching assembly and layout between hauling block and the diversion sheave there is no need must be parallel.Because hole 5 can be eliminated because of the layout of stretching assembly and traction sheave and diversion sheave when not parallel, the internal stress that inclusion enclave 1 is produced.Thereby do not influence life-span of stretching assembly.
Claims (21)
1. the stretching assembly of a lift appliance comprises a plurality of supporting body and inclusion enclaves that wrap up said supporting body with bearing core wires of clad; It is characterized in that: the profile of said inclusion enclave is a flat shoestring structure, and the width dimensions of this inclusion enclave is at least greater than its gauge; The clad and the inclusion enclave of said supporting body are processed by nonmetallic materials, can relative motion between supporting body and the inclusion enclave; Said supporting body along continuous straight runs arranged spaced.
2. stretching assembly as claimed in claim 1 is characterized in that: the bearing core wires of said supporting body is a metal core wire.
3. stretching assembly as claimed in claim 1 is characterized in that: the bearing core wires of said supporting body is non-metal core wire.
4. like claim 2 or 3 described stretching assemblies, it is characterized in that: said bearing core wires adopts the many parallel afterturns of heart yearn to form.
5. stretching assembly as claimed in claim 4 is characterized in that: the clad of said supporting body is full of said heart yearn, and links together securely, is separated by clad between the strand of bearing core wires simultaneously.
6. stretching assembly as claimed in claim 1 is characterized in that: the coating layer material of said supporting body is an elastomeric material.
7. stretching assembly as claimed in claim 1 is characterized in that: the coating layer material of said supporting body is thermoplastics type's polyurethane resin.
8. stretching assembly as claimed in claim 3 is characterized in that: the bearing core wires material of said supporting body is a synthetic resin.
9. stretching assembly as claimed in claim 1 is characterized in that: said inclusion enclave material is a resin material, and and hauling block between coefficient of friction be 0.2～0.5.
10. stretching assembly as claimed in claim 1 is characterized in that: the cross section of said inclusion enclave has except that the hole of a plurality of supporting bodies of parcel, between the hole of adjacent supporting body, has a hole at least.
11. stretching assembly as claimed in claim 1 is characterized in that: the bearing core wires that the existing metal core wire of the bearing core wires of said supporting body forms, the bearing core wires that also has the nonmetallic core line to form.
12. stretching assembly as claimed in claim 11 is characterized in that: said metal bearing core wires and nonmetal bearing core wires have enough TENSILE STRENGTHs, can bear the TENSILE STRENGTH requirement of design.
13. stretching assembly as claimed in claim 1 is characterized in that: the traction sheave diameter ratio that the bearing core wires optical diameter of said supporting body cooperates with stretching assembly is 30 or bigger.
14. want ball 1 described stretching assembly like right, it is characterized in that: the bearing core wires optical diameter of said supporting body is 2.5～5mm.
15. stretching assembly as claimed in claim 1 is characterized in that: the ratio of the coating thickness of said supporting body and bearing core wires optical diameter is greater than 4.
16. stretching assembly as claimed in claim 1 is characterized in that: the thickness of said inclusion enclave and the difference in diameter of said supporting body are 0.5～1.5mm.
17. stretching assembly as claimed in claim 1 is characterized in that: the radical of said supporting body is at least 3, is at most 6.
18. stretching assembly as claimed in claim 1 is characterized in that: said inclusion enclave contains flame-retardant materials.
19. stretching assembly as claimed in claim 2 is characterized in that: the diameter of described metal core wire is that intensity is greater than 2000N/mm between 0.15～0.6mm
2
20. stretching assembly as claimed in claim 1 is characterized in that: said inclusion enclave material melting point is lower than the fusing point of the coating layer material of said supporting body.
21. stretching assembly as claimed in claim 1 is characterized in that: the rupture strength of said stretching assembly is to bear outer 3 times of carrying or higher at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710093869A CN101324033B (en) | 2007-06-15 | 2007-06-15 | Stretching assembly of elevator apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710093869A CN101324033B (en) | 2007-06-15 | 2007-06-15 | Stretching assembly of elevator apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101324033A CN101324033A (en) | 2008-12-17 |
| CN101324033B true CN101324033B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710093869A Active CN101324033B (en) | 2007-06-15 | 2007-06-15 | Stretching assembly of elevator apparatus |
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| CN (1) | CN101324033B (en) |
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| ES2682205T3 (en) | 2010-05-13 | 2018-09-19 | Otis Elevator Company | Method of manufacturing a woven fabric having a desired separation between tension members |
| RU2533960C1 (en) * | 2010-09-20 | 2014-11-27 | Отис Элевэйтор Компани | Hoist suspending and/or driving assembly having at least one surface providing traction or creation of adhesive forces and containing open-laid weaving fibres |
| JP2015507706A (en) * | 2012-01-05 | 2015-03-12 | ナムローゼ・フェンノートシャップ・ベーカート・ソシエテ・アノニムＮ Ｖ Ｂｅｋａｅｒｔ Ｓｏｃｉｅｔｅ Ａｎｏｎｙｍｅ | Lifting rope and elevator equipped with the rope |
| CN104179050B (en) * | 2014-08-19 | 2016-08-24 | 浙江西传电气科技有限公司 | A kind of flat rope core elevator belt |
| CN107055268A (en) * | 2017-03-22 | 2017-08-18 | 南通昌荣机电有限公司 | A kind of traction steel band |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1233302A (en) * | 1996-10-15 | 1999-10-27 | 奥蒂斯电梯公司 | Synthetic non-metallic rope for an elevator |
| CN1331768A (en) * | 1998-12-22 | 2002-01-16 | 奥蒂斯电梯公司 | Tension member for elevator |
| CN1488019A (en) * | 2001-12-12 | 2004-04-07 | ������������ʽ���� | Elevator rope and elevator device |
| CN1558865A (en) * | 2002-10-25 | 2004-12-29 | 三菱电机株式会社 | Rope for elevator |
| CN1568281A (en) * | 2002-11-12 | 2005-01-19 | 三菱电机株式会社 | Elevator rope and elevator apparatus |
| CN2705490Y (en) * | 2003-11-26 | 2005-06-22 | 沈利元 | Flat steel coating rope |
| CN1668804A (en) * | 2002-07-17 | 2005-09-14 | 贝克特股份有限公司 | Metal strand comprising interrupted filament |
| CN1973082A (en) * | 2004-05-10 | 2007-05-30 | 欧诺那S·公司 | Cable and belt for a lift speed limiter and associated pulleys |
-
2007
- 2007-06-15 CN CN200710093869A patent/CN101324033B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1233302A (en) * | 1996-10-15 | 1999-10-27 | 奥蒂斯电梯公司 | Synthetic non-metallic rope for an elevator |
| CN1331768A (en) * | 1998-12-22 | 2002-01-16 | 奥蒂斯电梯公司 | Tension member for elevator |
| CN1488019A (en) * | 2001-12-12 | 2004-04-07 | ������������ʽ���� | Elevator rope and elevator device |
| CN1668804A (en) * | 2002-07-17 | 2005-09-14 | 贝克特股份有限公司 | Metal strand comprising interrupted filament |
| CN1558865A (en) * | 2002-10-25 | 2004-12-29 | 三菱电机株式会社 | Rope for elevator |
| CN1568281A (en) * | 2002-11-12 | 2005-01-19 | 三菱电机株式会社 | Elevator rope and elevator apparatus |
| CN2705490Y (en) * | 2003-11-26 | 2005-06-22 | 沈利元 | Flat steel coating rope |
| CN1973082A (en) * | 2004-05-10 | 2007-05-30 | 欧诺那S·公司 | Cable and belt for a lift speed limiter and associated pulleys |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101324033A (en) | 2008-12-17 |
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