阅读说明：本技术 一种新型端头高温防护结构及牵引绳端头结构 (Novel end high temperature protective structure and haulage rope end structure ) 是由 黄博伟 李实� 于 2019-07-01 设计创作，主要内容包括：本发明涉及一种端头高温防护结构及牵引绳端头结构,端头高温防护结构包括可安装在端头上的热收缩套,以及包覆在热收缩套上具有阻燃隔热性能的改性玻璃纤维,其特征在于：所述热收缩套由热收缩形状记忆材料制成。牵引绳端头结构包括。用于固定绳体的端头,设置在端头表面的热收缩套以及包覆在热收缩套表面的改性玻璃纤维,其特征在于：所述热收缩套由形状记忆材料制成。本发明有益在于：在极端高温条件下避免端头温度过高而影响锁紧功能,从而使电梯绳端头绳体在受热时不融化、不变形、不松动、不滑脱,完全避免造成事故。(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.)

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.

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.