CN101343841A - Stretching component of elevator and elevator device - Google Patents
Stretching component of elevator and elevator device Download PDFInfo
- Publication number
- CN101343841A CN101343841A CNA2007100939359A CN200710093935A CN101343841A CN 101343841 A CN101343841 A CN 101343841A CN A2007100939359 A CNA2007100939359 A CN A2007100939359A CN 200710093935 A CN200710093935 A CN 200710093935A CN 101343841 A CN101343841 A CN 101343841A
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- China
- Prior art keywords
- stretching assembly
- supporting body
- core wires
- bearing core
- described supporting
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
-
- 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
Abstract
The invention discloses a stretching component of an elevator device, which comprises a plurality of carrying bodies of bearing core threads provided with coating layers, and an enclosing body for enclosing the carrying bodies; wherein, the outer appearance of the enclosing body adopts a flat strap-shaped structure, and the width size of the inclosing body is at least larger than the thickness size thereof; the coating layers and the enclosing body of the carrying bodies are made of non-metal material, the carrying bodies are adjacently arranged, the relative motion can be performed between adjacent carrying bodies, as well as between the carrying bodies and the enclosing body. The invention also discloses the elevator device adopting the stretching component. The stretching component can eliminate the deformation of the enclosing body, and the service life of the stretching component is enhanced; the stretching component has the advantages that the structure is simple, the service life is long, and the friction characteristics are good, and meanwhile the arrangement of an elevator system is more flexible.
Description
Technical field
The present invention relates to a kind of stretching assembly that is used for the traction elevator device.The invention still further relates to a kind of lift appliance that adopts described stretching assembly.
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, as 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 to increase cornerite between steel wire rope and the hauling block in order to increase tractive force, perhaps on hauling block, slot.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 made by nonmetallic materials; This inclusion enclave wraps up the bearing core wires that a plurality of metal materials are made, 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, 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 fully with hauling block and leading block, 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,, must increase the rope radical of elevator device, therefore cause the complexity of system layout to increase because the wire rope core diameter is less.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 pressure that contacts between rope and the traction sheave increases, and causes the pressure that contacts 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 to be solved in the present invention 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 this reason, the present invention also will provide a kind of lift appliance that adopts described 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 described 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 described supporting body are made by nonmetallic materials, and described supporting body disposed adjacent can relative motion between the adjacent supporting body, can relative motion between supporting body and the inclusion enclave.
The bearing core wires optical diameter of described supporting body is 2.5～5mm.
The clad of described supporting body is full of above-mentioned heart yearn, and links together securely, and the layer that is wrapped between the strand of bearing core wires simultaneously separates.
The radical of described supporting body is at least 3, mostly is 6 most.
A kind of lift appliance that adopts above-mentioned stretching assembly is included in car, counterweight, the drive unit that has drive pulley and the stretching assembly of lifting in the hoist trunk, wherein, and the aforesaid stretching assembly of described stretching assembly.
Owing to adopt said structure, can relative motion between supporting body and the inclusion enclave, can relative motion between the adjacent supporting body.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.In addition because adjacent supporting body can relative motion, and this relative motion can provide the burden functional on the balance rope strand, make the load basically identical of each supporting body.The life-span of supporting body can be balanced like this, thus the service life of improving whole stretching assembly.
The radical of supporting body is few, thereby the width of stretching assembly is not wide.Described like this stretching assembly 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 substantially.So can increase the flexibility that elevator is arranged.
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.Layer separates because the strand of bearing core wires is wrapped, and 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.Although the diameter of supporting body is smaller like this because a plurality of supporting body disposed adjacent, and wrapped up by same inclusion enclave, so the vibration of stretching assembly obviously reduce, thereby the vibration that is delivered to car also will reduce, the interior noise of car also can reduce.
Description of drawings
The present invention is further detailed explanation below in conjunction with accompanying drawing and preferred embodiment:
Accompanying drawing is the sectional view of the stretching assembly of embodiment of the invention lift appliance.
The specific embodiment
As shown in the figure, 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 strand in central authorities in bearing core wires 4.Each strand strand of bearing core wires 4 is to be formed by 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 substantially 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 integument 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.
In order to make the elevator stretching assembly have better frictional behavior, between inclusion enclave 1 and the integument 3, the coefficient of friction between the adjacent integument 3 is preferably 0.15, and is perhaps higher.
The inside of stretching assembly is provided with 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 substantially.Stretching assembly is than the r c steel wire rope of circle in the embodiments of the present invention, and the pressure ratio that inclusion enclave 1 and clad 3 are subjected to is less, so inclusion enclave 1 and clad 3 have better wear resistance and fatigue life.
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 the figure, 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, the molten point of material of the molten clad 3 than supporting body 2 of the material of inclusion enclave 1 is low.Supporting body 2 can 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 made by nonmetallic materials, for example the synthetic fiber high density material of the thermoplastic resin of acrylic resin, polyvinyl resin or ethene etc. or high-intensity aromatics polyamide fibre or polypropylene fibre etc.Simultaneously, the supporting body 2 of stretching assembly can be made of supporting body with metal material and the supporting body mixing with nonmetallic materials.Help overcoming the problem of the lateral stiffness deficiency 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.
Claims (23)
1, a kind of stretching assembly of lift appliance comprises a plurality of supporting body and inclusion enclaves that wrap up described supporting body with bearing core wires of clad; It is characterized in that: the profile of described 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 described supporting body are made by nonmetallic materials, and described supporting body disposed adjacent can relative motion between the adjacent supporting body, can relative motion between supporting body and the inclusion enclave.
2, stretching assembly as claimed in claim 1 is characterized in that: the bearing core wires of described supporting body is a metal core wire.
3, 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
4, stretching assembly as claimed in claim 1 is characterized in that: the bearing core wires of described supporting body is non-metal core wire.
5, stretching assembly as claimed in claim 4 is characterized in that: the bearing core wires material of described supporting body is a synthetic resin.
6, as claim 2 or 4 described stretching assemblies, it is characterized in that: described bearing core wires adopts the many parallel afterturns of heart yearn to form.
7, stretching assembly as claimed in claim 6 is characterized in that: the clad of described supporting body is full of described heart yearn, and links together securely, and the layer that is wrapped between the strand of bearing core wires simultaneously separates.
8, stretching assembly as claimed in claim 1 is characterized in that: the coating layer material of described supporting body is an elastomeric material.
9, stretching assembly as claimed in claim 1 is characterized in that: the coating layer material of described supporting body is thermoplastics type's polyurethane resin.
10, stretching assembly as claimed in claim 1 is characterized in that: described inclusion enclave material is a resin material, and and hauling block between coefficient of friction be 0.2～0.5.
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 described 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: described metal bearing core wires and nonmetal bearing core wires have enough TENSILE STRENGTH, 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 described supporting body cooperates with stretching assembly is 30 or bigger.
14, want ball 1 described stretching assembly as right, it is characterized in that: the bearing core wires optical diameter of described 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 described supporting body and bearing core wires optical diameter is preferably 6～12 substantially greater than 4.
16, stretching assembly as claimed in claim 1 is characterized in that: the difference in diameter of described cladding height and described supporting body is 0.5～1.5mm.
17, stretching assembly as claimed in claim 1 is characterized in that: the radical of described supporting body is at least 3, mostly is 6 most.
18, stretching assembly as claimed in claim 1 is characterized in that: described inclusion enclave contains flame-retardant materials.
19, stretching assembly as claimed in claim 1 is characterized in that: the molten molten point than described supporting body wrapper material of described inclusion enclave material is low.
20, stretching assembly as claimed in claim 1 is characterized in that: the rupture strength of described stretching assembly is to bear outer 3 times of carrying or higher at least.
21, stretching assembly as claimed in claim 1 is characterized in that: the coefficient of friction between the described adjacent supporting body is 0.15 or higher.
22, stretching assembly as claimed in claim 1 is characterized in that: the coefficient of friction between described supporting body and the inclusion enclave is 0.15 or higher.
23, a kind of lift appliance is included in car, counterweight, the drive unit that has drive pulley and the stretching assembly of lifting in the hoist trunk, and it is characterized in that: described stretching assembly is the stretching assembly of the described lift appliance of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710093935A CN101343841B (en) | 2007-07-09 | 2007-07-09 | Stretching component of elevator and elevator device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710093935A CN101343841B (en) | 2007-07-09 | 2007-07-09 | Stretching component of elevator and elevator device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101343841A true CN101343841A (en) | 2009-01-14 |
| CN101343841B CN101343841B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710093935A Active CN101343841B (en) | 2007-07-09 | 2007-07-09 | Stretching component of elevator and elevator device |
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| Country | Link |
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| CN (1) | CN101343841B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452373A (en) * | 2014-11-26 | 2015-03-25 | 胡国良 | Drag rope and method for manufacturing drag rope |
| CN108726320A (en) * | 2017-04-20 | 2018-11-02 | 奥的斯电梯公司 | Tension member for elevator system belt |
| CN109399421A (en) * | 2017-08-17 | 2019-03-01 | 张旻贞 | Balance rope for elevator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5881843A (en) * | 1996-10-15 | 1999-03-16 | Otis Elevator Company | Synthetic non-metallic rope for an elevator |
| PT1153167E (en) * | 1998-12-22 | 2006-06-30 | Otis Elevator Co | TENSION ELEMENT FOR A LIFT |
| US20040026178A1 (en) * | 2001-12-12 | 2004-02-12 | Takenobu Honda | Elevator rope and elevator device |
| EP1384809A1 (en) * | 2002-07-22 | 2004-01-28 | N.V. Bekaert S.A. | Fixing of filaments in strand |
| KR100680926B1 (en) * | 2002-10-25 | 2007-02-08 | 미쓰비시덴키 가부시키가이샤 | Rope for elevator |
| CN2705490Y (en) * | 2003-11-26 | 2005-06-22 | 沈利元 | Flat steel coating rope |
| ES2253981B1 (en) * | 2004-05-10 | 2007-06-16 | Orona, S. Coop. | CABLE AND TAPE FOR LIFT SPEED LIMITER AND ASSOCIATED PULLEYS. |
-
2007
- 2007-07-09 CN CN200710093935A patent/CN101343841B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452373A (en) * | 2014-11-26 | 2015-03-25 | 胡国良 | Drag rope and method for manufacturing drag rope |
| CN108726320A (en) * | 2017-04-20 | 2018-11-02 | 奥的斯电梯公司 | Tension member for elevator system belt |
| CN109399421A (en) * | 2017-08-17 | 2019-03-01 | 张旻贞 | Balance rope for elevator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101343841B (en) | 2012-09-05 |
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