CN110697543A - Novel end high temperature protective structure and haulage rope end structure - Google Patents
Novel end high temperature protective structure and haulage rope end structure Download PDFInfo
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- CN110697543A CN110697543A CN201910583054.8A CN201910583054A CN110697543A CN 110697543 A CN110697543 A CN 110697543A CN 201910583054 A CN201910583054 A CN 201910583054A CN 110697543 A CN110697543 A CN 110697543A
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- heat
- glass fiber
- temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
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Abstract
The invention relates to an end high-temperature protection structure and a traction rope end structure, wherein the end high-temperature protection structure comprises a heat shrinkage sleeve which can be installed on an end, and modified glass fiber which is coated on the heat shrinkage sleeve and has flame retardant and heat insulation properties, and the end high-temperature protection structure is characterized in that: the heat shrinkable sleeve is made of a heat shrinkable shape memory material. The haulage rope end structure includes. The end for fixing the rope body, the heat shrinkable sleeve arranged on the surface of the end and the modified glass fiber coated on the surface of the heat shrinkable sleeve are characterized in that: the heat shrinkable sleeve is made of a shape memory material. The invention has the advantages that: the locking function is prevented from being influenced by overhigh temperature of the end under the condition of extreme high temperature, so that the rope body at the end of the elevator rope is not melted, deformed, loosened and slipped when being heated, and accidents are completely avoided.
Description
Technical Field
The invention relates to a traction rope end structure, in particular to an end high-temperature protection structure capable of preventing high-temperature softening and a traction rope end structure.
Background
The elevator traction rope is an important component of an elevator system, and the main stream of the existing elevator traction rope is a steel wire rope.
PBO fiber, aramid fiber and the like have the excellent performances of ultrahigh strength, high modulus, temperature resistance, acid and alkali resistance, light weight, good dimensional stability and the like, so the composite material is an ideal material for preparing high-strength ropes. The strength of the synthetic fiber rope made by mixing and twisting the fibers according to a certain proportion is 3-5 times of that of the steel wire, the weight of the synthetic fiber rope is only about 1/4 times of that of the steel wire, and the synthetic fiber rope is not decomposed or melted under the high-temperature condition.
Therefore, the synthetic fiber rope made by mixing and twisting the PBO fiber and the aramid fiber replaces a steel wire rope to be used as the elevator traction rope, has the characteristics of light weight, small elongation, long service life and easy replacement, has great advantages particularly for high-rise elevators, and is the development trend of materials for the elevator traction rope.
The coating layer of the outer surface of the synthetic fiber elevator rope is easy to soften under the high-temperature condition, and once the coating layer is softened, the size of the rope body is reduced, the end locking function fails, the rope body falls off, and safety accidents occur.
When meeting high temperature environment such as conflagration, in order to prevent that the end rope body from softening when being heated and causing the accident, need protect the end.
The elevator traction rope is an important component of an elevator system, and the main stream of the existing elevator traction rope is a steel wire rope. The steel wire rope is made of metal materials, so that the steel wire rope is large in mass and still not light enough in installation and transportation.
The synthetic fiber rope is easy to soften and deform in a high-temperature environment, so that the end locking function is influenced, failure is caused, the rope body falls off, and safety accidents occur.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an end high-temperature protection structure, so that when the end high-temperature protection structure encounters a high-temperature environment such as a fire disaster, a rope body at the end of a fiber rope is not melted, deformed, loosened or slipped, and accidents are completely avoided.
The technical scheme adopted by the invention is as follows:
the end head high-temperature protection structure comprises a heat shrinkage sleeve and modified glass fiber, wherein the heat shrinkage sleeve can be mounted on an end head, the modified glass fiber is coated on the heat shrinkage sleeve and has flame retardant and heat insulation properties, and the heat shrinkage sleeve is made of a heat shrinkage shape memory material.
The installation method of the end head high-temperature protection structure comprises the following steps: according to the structural characteristics of the end head, the heat shrinkage sleeve is processed, expanded and molded, and then is shrunk and fastened around the end head of the wedge-shaped metal socket through heating; and then the flame-retardant heat-insulating material is wound or bonded on the periphery of the heat-shrinkable sleeve to form a cladding sheath. The protective structure can generate ceramic action at 380-420 ℃ through special flame-retardant heat-insulating materials under the conditions of fire and other high temperatures, can efficiently prevent heat from being transferred into the end head, and avoids the over-high temperature of the end head; and under the condition of extreme high temperature, the heat shrinkable sleeve can be further fastened, so that the locking function is prevented from being influenced by overhigh temperature of the end head.
According to the scheme, the heat-shrinkable shape memory material is preferably trans-1, 4-polyisoprene.
According to the scheme, the modified glass fiber is formed by adding nano low-temperature ceramic and flame-retardant inorganic materials into glass fiber, mixing and fusing at 300-360 ℃, and is made into a belt shape, a film shape, a laminated shape or other shapes.
According to the scheme, the low-temperature ceramic and flame-retardant inorganic material is SiO2Or Na2SiO3、Sb2O3、B2O3Or TiO2One or more of (B), (B) and Fe2O3、Al2O3One or a mixture of more of CaO, MgO or alkali metal oxide.
A traction rope end structure comprises an end used for fixing a rope body, a heat shrinkage sleeve arranged on the surface of the end and modified glass fiber coated on the surface of the heat shrinkage sleeve, wherein the heat shrinkage sleeve is made of a shape memory material.
According to the scheme, the shape memory material is trans-1, 4-polyisoprene.
According to the scheme, the modified glass fiber is formed by adding nano low-temperature ceramic and flame-retardant inorganic materials into glass fiber, mixing and fusing at 300-360 ℃, and is made into a belt shape, a film shape, a laminated shape or other shapes.
According to the scheme, the low-temperature ceramic and flame-retardant inorganic material is SiO2Or Na2SiO3、Sb2O3、B2O3Or TiO2One or more of (B), (B) and Fe2O3、Al2O3、CaO, MgO or alkali metal oxide or a mixture of several of them.
The low-temperature ceramic and flame-retardant inorganic material can generate low-temperature ceramic effect at a low temperature of 380-420 ℃. The mechanism is SiO2Or Na2、SiO3、B2O3、TiO2After the ceramic assistant is added, the ceramic membrane can be formed at a lower temperature of 380-420 ℃, so that the ceramic membrane has good heat insulation and shaping effects, can efficiently prevent heat from being transferred into the end, and avoids the over-high temperature of the end, Sb2O3So that the flame retardant has good flame retardant effect.
The invention has the beneficial effects that:
1. the special heat-insulating flame-retardant material is adopted to prevent heat from being transferred into the end, so that the end rope body is prevented from softening and deforming. The material can generate low-temperature ceramming at a low temperature of 380-420 ℃. The ceramic effect can effectively prevent heat from being transferred into the end head, and meanwhile, the ceramic material is further fastened with a heat shrinkable sleeve due to the characteristics of high temperature resistance and no deformation;
2. under the condition of extreme high temperature, the locking function is prevented from being influenced by overhigh temperature of the end, so that the rope body at the end of the elevator rope is not melted, deformed, loosened and slipped when being heated, and accidents are completely avoided;
3. the thermal contraction sleeve is made of a thermal contraction shape memory material trans-1, 4-polyisoprene, a wrapping layer is formed by gluing, and the end wedge-shaped metal sockets are tightly hooped together, so that the end rope body is not easy to deform due to softening.
Drawings
Fig. 1 is a schematic diagram of the end structure of the traction rope in the patent.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 shows the structural characteristics of the invention, 1 is a rope body fixedly arranged at an end, 2 is the end, 3 is a heat-shrinkable sleeve, and 4 is modified glass fiber with flame-retardant and heat-insulating properties. The rope body 1 is fixedly arranged on the end head, the surface of the end head 2 is provided with a heat-shrinkable sleeve 3, and the outer surface of the heat-shrinkable sleeve 3 is coated with modified glass fiber 4 with flame-retardant and heat-insulating properties.
Example 1
A high-temperature protection structure for an end head comprises a heat shrinkage sleeve and modified glass fibers, wherein the heat shrinkage sleeve can be mounted on the end head, and the modified glass fibers are coated on the outer surface of the heat shrinkage sleeve. The end is a wedge-shaped metal socket end, the heat-shrinkable sleeve is made of trans-1, 4-polyisoprene through irradiation crosslinking, the heat-shrinkable sleeve is firstly expanded and shaped, and is sleeved in the end wedge-shaped metal socket device when a rope body is installed, and the sleeve is heated by open fire, is shrunk and shaped and is tightly attached to the end wedge-shaped metal socket. And then the outer surface of the heat shrinkable sleeve is wound or bonded with the modified glass fiber with flame retardant and heat insulation properties.
The modified glass fiber is as follows: mixing 30% of Na by mass2SiO3、35%B2O3、10%Sb2O3、10%TiO2、5%Al2O3、5%MgO、5%Fe2O3The nano inorganic substance is added into the glass fiber, then the glass fiber is fused at 300-360 ℃ to be made into a belt shape or a film shape, and a cladding sheath is formed on the surface of the winding or cladding thermal shrinkage sleeve. The end head high-temperature protection structure is placed in an environment with the temperature of 380 ℃ for 2 hours, the cladding sheath forms a stable ceramic shell, then the temperature is raised to 750 ℃ and the temperature is kept for 2 hours, the rope body is not softened, loosened and deformed, the locking function is not affected, and the protection requirement is met.
Example 2
A high-temperature protection structure for an end head comprises a heat shrinkage sleeve and modified glass fibers, wherein the heat shrinkage sleeve can be mounted on the end head, and the modified glass fibers are coated on the outer surface of the heat shrinkage sleeve. The end is a wedge-shaped metal socket end, the heat-shrinkable sleeve is made of trans-1, 4-polyisoprene through irradiation crosslinking, the heat-shrinkable sleeve is firstly expanded and shaped, and is sleeved in the end wedge-shaped metal socket device when a rope body is installed, and the sleeve is heated by open fire, is shrunk and shaped and is tightly attached to the end wedge-shaped metal socket. And then the outer surface of the heat shrinkable sleeve is wound or bonded with the modified glass fiber with flame retardant and heat insulation properties.
Unlike example 1, the mass ratio was 20% SiO2、35%B2O3、10%Sb2O3、10%TiO2、10%CaO、5%Al2O3、5%MgO、5%K2Adding O nano inorganic substance into the glass fiber, then fusing at 300-360 ℃ to prepare a special shielding flame-retardant heat-insulating material belt, and then winding or bonding the special shielding flame-retardant heat-insulating material belt to form a cladding sheath. The device is placed in an environment with the temperature of 420 ℃ for 2 hours, the cladding sheath forms a ceramic shell, then the temperature is raised to 1250 ℃, the temperature is kept for 1 hour, the rope body is not softened, loosened and deformed, the locking function is not affected, and the protection requirement is met.
Example 3
A high-temperature protection structure for an end head comprises a heat shrinkage sleeve and modified glass fibers, wherein the heat shrinkage sleeve can be mounted on the end head, and the modified glass fibers are coated on the outer surface of the heat shrinkage sleeve. The end is a wedge-shaped metal socket end, the heat-shrinkable sleeve is made of trans-1, 4-polyisoprene through irradiation crosslinking, the heat-shrinkable sleeve is firstly expanded and shaped, and is sleeved in the end wedge-shaped metal socket device when a rope body is installed, and the sleeve is heated by open fire, is shrunk and shaped and is tightly attached to the end wedge-shaped metal socket. And then the outer surface of the heat shrinkable sleeve is wound or bonded with the modified glass fiber with flame retardant and heat insulation properties.
Mixing 30% of Na by mass2SiO3、35%B2O3、10%Sb2O3、10%TiO2、5%Fe2O3、5%MgO、5%K2Adding O nano inorganic substance into the glass fiber, then fusing at 300-360 ℃ to prepare a special shielding flame-retardant heat-insulating material belt, and then winding or bonding the special shielding flame-retardant heat-insulating material belt to form a cladding sheath. The device is placed in an environment with the temperature of 420 ℃ for 2 hours, the cladding sheath forms a ceramic shell, the rope body is not softened, loosened and deformed, the locking function is not affected, and the protection requirement is met.
Example 4
A high-temperature protection structure for an end head comprises a heat shrinkage sleeve and modified glass fibers, wherein the heat shrinkage sleeve can be mounted on the end head, and the modified glass fibers are coated on the outer surface of the heat shrinkage sleeve. The end is a wedge-shaped metal socket end, the heat-shrinkable sleeve is made of trans-1, 4-polyisoprene through irradiation crosslinking, the heat-shrinkable sleeve is firstly expanded and shaped, and is sleeved in the end wedge-shaped metal socket device when a rope body is installed, and the sleeve is heated by open fire, is shrunk and shaped and is tightly attached to the end wedge-shaped metal socket. And then the outer surface of the heat shrinkable sleeve is wound or bonded with the modified glass fiber with flame retardant and heat insulation properties.
Mixing 30% of Na by mass2SiO3、30%B2O3、20%Sb2O3、10%TiO2、5%MgO、5%K2Adding O nano inorganic substance into the glass fiber, then fusing at 300-360 ℃ to prepare a special shielding flame-retardant heat-insulating material belt, and then winding or bonding the special shielding flame-retardant heat-insulating material belt to form a cladding sheath. The device is placed in an environment with the temperature of 420 ℃ for 0.5 hour, the cladding sheath forms a ceramic shell, then the temperature is raised to 750 ℃, the temperature is kept for 2 hours, then the temperature is raised to 1250 ℃, the temperature is kept for 1 hour, the rope body is not softened, loosened and deformed, the locking function is not influenced, and the protection requirement is met.
Claims (8)
1. The utility model provides an end high temperature protective structure, includes the thermal contraction cover of mountable on the end to and the cladding has the modified glass fiber of fire-retardant heat-proof quality on the thermal contraction cover, its characterized in that: the heat shrinkable sleeve is made of a heat shrinkable shape memory material.
2. The tip high temperature protective structure according to claim 1, wherein: the heat-shrinkable shape memory material is preferably trans-1, 4-polyisoprene.
3. The tip high temperature protective structure according to claim 1 or 2, wherein: the modified glass fiber is formed by mixing glass fiber with nano low-temperature ceramic and flame-retardant inorganic materials and then fusing at 300-360 ℃, and is made into a belt shape, a film shape, a laminated shape or other shapes.
4. The tip high temperature protective structure according to claim 3, wherein: the low-temperature ceramic and flame-retardant inorganic material is SiO2Or Na2SiO3、Sb2O3、B2O3Or TiO2One or more of (B), (B) and Fe2O3、Al2O3One or a mixture of more of CaO, MgO or alkali metal oxide.
5. The utility model provides a haulage rope end structure, is including the end that is used for fixed rope body, sets up at the thermal contraction cover on end surface and the cladding modified glass fiber on thermal contraction cover surface, its characterized in that: the heat shrinkable sleeve is made of a shape memory material.
6. The traction rope end construction of claim 5, wherein: the shape memory material is trans-1, 4-polyisoprene.
7. The end structure of the hauling rope according to claim 5 or 6, wherein the modified glass fiber is formed by mixing glass fiber with nano low-temperature ceramic and flame-retardant inorganic materials, and fusing at 300-360 ℃ to form a belt shape, a film shape, a laminated shape or other shapes.
8. The traction rope end structure of claim 7, wherein the low temperature ceramming and fire-retarding inorganic material is SiO2Or Na2SiO3、Sb2O3、B2O3Or TiO2One or more of (B), (B) and Fe2O3、Al2O3One or a mixture of more of CaO, MgO or alkali metal oxide.
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101108909A (en) * | 2006-07-17 | 2008-01-23 | 李广洪 | Shape memory material and method of preparing the same |
CN204258486U (en) * | 2014-12-22 | 2015-04-08 | 惠而浦(中国)股份有限公司 | Motor lead-out wire |
US20150298770A1 (en) * | 2014-04-17 | 2015-10-22 | Petroleum Geo-Services Inc. | Flexible rope termination device |
CN107021399A (en) * | 2016-02-01 | 2017-08-08 | 通力股份公司 | rope terminal device, rope terminal structure and elevator |
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2019
- 2019-07-01 CN CN201910583054.8A patent/CN110697543B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101108909A (en) * | 2006-07-17 | 2008-01-23 | 李广洪 | Shape memory material and method of preparing the same |
US20150298770A1 (en) * | 2014-04-17 | 2015-10-22 | Petroleum Geo-Services Inc. | Flexible rope termination device |
CN204258486U (en) * | 2014-12-22 | 2015-04-08 | 惠而浦(中国)股份有限公司 | Motor lead-out wire |
CN107021399A (en) * | 2016-02-01 | 2017-08-08 | 通力股份公司 | rope terminal device, rope terminal structure and elevator |
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