High-strength low-noise elevator steel wire rope

Abstract

According to the high-strength and low-noise elevator steel wire rope, through the design of the first sound absorption layer and the second sound absorption layer, vibration and noise generated inside and outside the steel wire rope in the elevator running process can be absorbed and isolated, so that transmission and interference of elevator noise are reduced, and the noise reduction effect is improved. Meanwhile, through the arrangement of a first rubber layer, a second rubber layer, a first rubber supporting plate and a second rubber supporting plate, a filling position is provided for the polyester fiber sound absorption cotton, meanwhile, a good anti-extrusion effect is achieved, the elastic buffering performance of the steel wire rope can be effectively improved, and the pressure borne by the steel wire rope is relieved; deformation of the steel wire rope is prevented; in addition, the outer gaps of the two adjacent inner layer strands and the outer gaps of the two adjacent outer layer strands are filled with the reinforcing strands, so that the tensile strength of the steel wire rope is effectively enhanced, the structure of the steel wire rope is firmer, tighter and more stable, and meanwhile noise generated during use is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of steel wire rope manufacturing, and particularly relates to a high-strength and low-noise elevator steel wire rope. BACKGROUND

[0002] Elevator systems are widely used in various living and office environments, and elevator steel wire ropes are crucial components of the elevator systems, bearing the entire weight of the elevator and bearing tensile force and bending stress during the ascending and descending of the elevator, and therefore need to have high strength to ensure the safety of the elevator during operation.

[0003] However, during operation of the conventional elevator steel wire rope, not only the mechanical equipment such as the traction machine that externally pulls the elevator generates certain mechanical noise during operation, but also the internal steel wires of the steel wire rope generate relatively large noise due to friction when the steel wire rope is extruded with the rope groove or the internal steel wires are loosened, displaced, or worn, thereby affecting the riding experience of passengers, reducing the comfort requirement of elevator riding, and being unfavorable for creating a good living and office environment.

[0004] Therefore, in order to improve the riding experience of passengers and create a good living and office environment, it is necessary to manufacture a high-strength and low-noise elevator steel wire rope that can effectively absorb and insulate noise generated inside and outside the elevator steel wire rope during use. SUMMARY

[0005] In view of the fact that the elevator steel wire rope may generate certain noise inside and outside during use in the prior art, affecting the riding experience and being unfavorable for creating a good living and office environment, the utility model provides a high-strength and low-noise elevator steel wire rope.

[0006] The utility model provides a high strength low noise elevator steel wire rope, it includes: a rope core, the rope core includes a carbon steel composite core A and the even package of a plurality of root of interlaced weaving sabian fiber silk and aramid fiber silk outside the carbon steel composite core, an inner layer strand layer, the inner layer strand layer includes a plurality of inner layer strands that spiral package the outside of the rope core in the face contact, a first sound absorption layer, the first sound absorption layer even package in the outer surface of inner layer strand layer, and the first sound absorption layer is made of polyester fiber sound absorption cotton, the outer layer strand layer includes a plurality of outer layer strands that spiral package the outside of the first sound absorption layer in the face contact, the outer gap of two adjacent the inner layer strands is filled with a reinforcing strand in the outer gap of two adjacent the outer layer strands, a second sound absorption layer, the second sound absorption layer even package in the outer surface of the outer layer strand layer, the second sound absorption layer includes a first rubber layer and the second rubber layer that even package is arranged in the outside of first rubber layer, be equipped with a plurality of first rubber support plate and second rubber support plate between the first rubber layer and second rubber layer, the first rubber support plate is evenly distributed between the first rubber layer, second rubber layer, and the first rubber support plate is fixedly connected along the width direction both ends with first rubber layer, second rubber layer respectively, the second rubber support plate is arranged between two adjacent first rubber support plate respectively, and every second rubber fixed plate is connected with adjacent first rubber support plate close to the first rubber board one end along the width direction one end, and the other end is connected with another adjacent first rubber support plate close to the second rubber board one end, and the first rubber support plate and second rubber support plate are filled with polyester fiber sound absorption cotton between, a wear-resistant layer, the wear-resistant layer is arranged in the outer surface of the second sound absorption layer.

[0007] Further, the reinforcing strand includes the first reinforcing strand filled between the outer gap of two adjacent the inner layer strands and the second reinforcing strand filled between the outer gap of two adjacent the outer layer strands, the first reinforcing strand includes a carbon steel composite core B and a plurality of polyester fiber filaments evenly twisted outside the carbon steel composite core, and the second reinforcing strand includes a polyester fiber strand core and a plurality of steel wires evenly twisted outside the polyester fiber strand core.

[0008] Further, the outer surface of the first reinforcing strand is wrapped with a carbon fiber layer.

[0009] Further, the second reinforcing strand is a compact strand.

[0010] Further, the rope core and the second reinforcing strand are infiltrated with lubricating grease.

[0011] Further, the inner layer strand is divided into three layers, including a core fine steel wire, 6 inner layer fine steel wires, and 12 outer layer fine steel wires; the 6 inner layer fine steel wires are twisted in a surface contact manner outside the core fine steel wire, and the 12 outer layer fine steel wires are twisted in a surface contact manner outside the inner layer fine steel wires.

[0012] Further, the outer layer strand is divided into three layers, including a core steel wire, 9 middle layer fine steel wires, and 9 outer layer thick steel wires; the 9 inner layer steel wires are twisted in a surface contact manner around the core steel wire, and the 9 outer layer thick steel wires are twisted in a surface contact manner and staggered outside the inner layer steel wires.

[0013] Further, the twisting direction of the rope core is the same as that of the outer layer strand and opposite to that of the inner layer strand.

[0014] Further, a moisture-proof layer is arranged between the wear-resistant layer and the second sound-absorbing layer; and the wear-resistant layer is a manganese phosphating coating.

[0015] The utility model discloses a high -strength low -noise's elevator steel wire rope, including rope core, inner layer strand, first sound -absorbing layer, outer layer strand, second sound -absorbing layer and wear -resistant layer, through the design of double sound -absorbing layer of first sound -absorbing layer and second sound -absorbing layer, can produce the vibration and noise of the steel wire rope inside and outside in the process of elevator operation and be absorbed and isolated, thereby reducing the spread and interference of elevator noise, providing comfortable riding experience for the passenger. Meanwhile, through the setting of first rubber layer, second rubber layer, first rubber support plate and second rubber support plate of second sound -absorbing layer, provide filling position for polyester fiber sound -absorbing cotton at the same time, play good anti -extrusion effect, can effectively improve the elastic buffer performance of steel wire rope, slow down the pressure received by steel wire rope, and then prevent the deformation phenomenon of steel wire rope, in addition, the outer gap of two adjacent setting the inner layer strand and the outer gap of two adjacent setting the outer layer strand are filled with reinforcing strands, which can enhance the tensile strength of the steel wire rope, make the steel wire rope structure more solid and compact, stable, and also reduce the noise during use. ACCURACY

[0016] Figure 1 It is a structure schematic view of the high -strength low -noise's elevator steel wire rope of the utility model;

[0017] Figure 2 It is a structure schematic view of the high -strength low -noise's elevator steel wire rope of the utility model;

[0018] Figure 3 It is Figure 1 the A part enlarged structure schematic view of;

[0019] Figure 4 It is the inner layer strand structure schematic view provided by the utility model;

[0020] Figure 5 The structure schematic view of the outer layer strand provided by the utility model is shown in the figure.

[0021] Figure 6 The structure schematic view of the first reinforcing strand provided by the utility model is shown in the figure.

[0022] Figure 7 The structure schematic view of the second reinforcing strand provided by the utility model is shown in the figure.

[0023] The figure mark

[0024] 1, rope core; 11, carbon steel composite core; 12, sisal fiber silk; 13, aramid fiber silk; 2, inner layer strand layer; 3, first sound absorption layer; 4, outer layer strand layer; 5, second sound absorption layer; 51, first rubber layer; 52, second rubber layer; 53, first rubber support plate; 54, second rubber support plate; 55, polyester fiber sound absorption cotton; 6, wear-resistant layer; 7, reinforcing strand; 71, first reinforcing strand; 711, carbon fiber layer; 72, second reinforcing strand; 8, moisture-proof layer. Specific implementation

[0025] The embodiments described below are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0026] Reference Figure 1 As shown in the figure, a high-strength low-noise elevator steel wire rope includes a rope core 1, an inner layer strand layer 2, a first sound absorption layer 3, an outer layer strand layer 4, a second sound absorption layer 5 and a second sound absorption layer 6.

[0027] Specifically, reference Figure 1 , Figure 2As shown, the rope core 1 includes a carbon steel composite core A11 and a plurality of interlaced and braided sisal fiber filaments 12 and aramid fiber filaments 13 uniformly wrapped outside the carbon steel composite core 11. The carbon steel composite core has high strength and excellent load-carrying capacity, and can effectively disperse the tension of the steel wire rope when in use, making the steel wire rope more stable as a whole, thereby improving its strength and load-carrying capacity. The sisal fiber filaments 12 and aramid fiber filaments 13 both have high strength and wear resistance. Compared with a rope core made of single sisal fiber filaments 12 or aramid fiber filaments 13, the rope core has high flexibility, enhanced corrosion resistance, higher strength and durability, and higher cost performance. In addition, the sisal fiber filaments 12 can effectively absorb and store the lubricating grease required by the steel wire rope, and the aramid fiber filaments 13 have high compatibility and stability and are not easy to deform or break due to immersion and extrusion of the grease, thereby providing certain structural support for the sisal fiber filaments 12 and significantly improving the durability of the rope core 11 and prolonging the service life of the rope core 11.

[0028] Referring to Figure 1 , Figure 4 As shown, the inner layer strand layer 2 includes a plurality of inner layer strands spirally wrapped outside the rope core 1 in a face contact manner. In this embodiment, the inner layer strand layer 2 is provided with 6 inner layer strands.

[0029] The inner layer strands are divided into three layers, including one core fine steel wire, 6 inner layer fine steel wires, and 12 outer layer fine steel wires; the 6 inner layer fine steel wires are spirally wrapped outside the core fine steel wire in a face contact manner, and the 12 outer layer fine steel wires are spirally wrapped outside the inner layer fine steel wires in a face contact manner.

[0030] The steel wires between the inner and outer layers are in a face contact manner, which can significantly increase the contact area of the inner and outer layer steel wires, thereby enhancing the stability and strength of the structure, making the contact stress distribution more uniform when the steel wire rope is subjected to tension, thereby reducing the friction noise caused by stress concentration, and further reducing the use noise of the steel wire rope.

[0031] Referring to Figure 1 As shown, the first sound-absorbing layer 3 is uniformly wrapped outside the inner layer strand layer 2, and the first sound-absorbing layer 3 is made of polyester fiber sound-absorbing cotton. The polyester fiber sound-absorbing cotton has a porous structure, and when sound waves pass through the polyester fiber sound-absorbing cotton, the sound waves will be reflected and scattered multiple times between the fibers, thereby reducing the sound intensity and propagation ability. By providing the first sound-absorbing layer 3 outside the inner layer strand layer 2, the noise generated by the internal steel wires of the steel wire rope during operation and the noise transmitted from the outside of the steel wire rope can be significantly reduced, achieving the effect of noise reduction.

[0032] Referring to Figure 1 , Figure 5As shown, the outer layer strand layer 4 includes several outer layer strands spirally wrapped outside the first sound-absorbing layer 3 in a face contact manner. In this embodiment, the outer layer strand layer 4 is provided with 9 outer layer strands in total.

[0033] The outer layer strand is divided into three layers, including one core thick steel wire, 9 middle layer thin steel wires, and 9 outer layer thick steel wires; the 9 inner layer steel wires are spirally wrapped around the core thick steel wire in a face contact manner, and the 9 outer layer thick steel wires are spirally wrapped outside the middle layer thin steel wires in a face contact manner. The face contact spiral wrapping also makes the contact stress between the steel wires of each layer of the outer layer strand more uniform, reduces the friction noise caused by stress concentration, and is beneficial to reducing the use noise of the steel wire rope.

[0034] In this embodiment, the twisting direction of the core 1 is the same as that of the outer layer strand and opposite to that of the inner layer strand, which is beneficial to reducing the contact stress between the strands, making the steel wire rope have excellent rotation resistance performance, and preventing the steel wire rope from loosening.

[0035] Reference Figure 1 As shown, the outer gaps of the two adjacent inner layer strands and the outer gaps of the two adjacent outer layer strands are both filled with a reinforcing strand 7, which can make the structure of the steel wire rope more solid, compact and stable, effectively enhance the tensile strength of the steel wire rope, reduce the deflection phenomenon between the strands, and also reduce the noise generated by friction during use.

[0036] Reference Figure 1 , Figure 6 and Figure 7 As shown, the reinforcing strand 7 includes a first reinforcing strand 71 filled between the outer gaps of the two adjacent inner layer strands and a second reinforcing strand 72 filled between the outer gaps of the two adjacent outer layer strands. The second reinforcing strand 72 is a compact strand.

[0037] The first reinforcing strand 71 includes a carbon steel composite core B and a plurality of polyester fiber filaments uniformly wrapped outside the carbon steel composite core; the second reinforcing strand 72 includes a polyester fiber strand core and a plurality of steel wires uniformly wrapped outside the polyester fiber strand core. The polyester fiber filaments and the polyester fiber strand core are not easy to deform and have the characteristics of oil absorption and oil storage, which can improve the good supporting effect. When the steel wire rope is in operation, the bending or stretching of the steel wire rope will cause the oil in the polyester fiber filaments and the strand core to be squeezed out, flow out and immerse in the corresponding steel wires of the strand to lubricate the steel wires to reduce the friction between the strands, thereby reducing the generation of noise.

[0038] In this embodiment, the rope core 1 and second reinforcing strands 72 are impregnated with lubricating grease. In actual use, excessive grease from the steel wire rope seeping into the polyester fiber sound-absorbing pad can affect the sound absorption performance of the steel wire rope. Therefore, the rope core 1 should be impregnated with an appropriate amount of grease, primarily to lubricate the inner strands and reduce interstrand friction. Furthermore, when the first reinforcing strand 71 fills the gaps between adjacent inner strands, the polyester fibers of the first reinforcing strand 71 absorb and store excess grease from the rope core 1 after lubricating the inner strands. This, to a certain extent, prevents excess grease from entering the polyester fiber sound-absorbing pad and affecting its performance, while also providing a reserve for subsequent lubrication of the inner strands. When filling the gaps between adjacent outer strands, the second reinforcing strand 72 utilizes the polyester fiber core's excellent oil absorption and storage properties to pre-absorb an appropriate amount of grease, providing lubrication for the outer strands' steel wires. This reduces friction between the strands, prevents rusting, and extends the service life of the steel wire rope.

[0039] The outer surface of the first reinforcing strand 71 is further wrapped with a carbon fiber layer 711. The carbon fiber layer 711 can reduce the friction between the first reinforcing strand 71 and the inner strand, enhance the tensile strength of the reinforcing strand, and make the reinforcing strand less likely to break when stretched.

[0040] refer to Figure 1 and Figure 3 As shown, the second sound-absorbing layer 5 is uniformly wrapped around the outer surface of the outer strand layer 4. The second sound-absorbing layer 5 includes a first rubber layer 51 and a second rubber layer 52 uniformly wrapped around the outer side of the first rubber layer 51. A plurality of first rubber support plates 53 and second rubber support plates 54 are disposed between the first and second rubber layers 51, 52. The first rubber support plates 53 are uniformly distributed between the first and second rubber layers 51, 52, and the first rubber support plates 53 are fixedly connected to the first and second rubber layers 51, 52 at both ends along the width direction. The second rubber support plates 54 are disposed between two adjacent first rubber support plates 53, and one end of each second rubber fixing plate 54 is connected to the end of the adjacent first rubber support plate 53 near the first rubber plate 51, and the other end is connected to the end of the other adjacent first rubber support plate 53 near the second rubber plate 52. Polyester fiber sound-absorbing cotton 55 is filled between the first and second rubber support plates 53, 54.

[0041] The first rubber layer 51 and the second rubber layer 52 serve as the basis of the second sound-absorbing layer, and can provide a preliminary sound insulation and shock absorption effect. The rubber material itself has certain damping characteristics, and can absorb and reduce the vibration transmission of sound. Meanwhile, through the connection of the first rubber support plate 53 and the second rubber support plate 54 with the first rubber layer 51 and the second rubber layer 52, the second sound-absorbing layer 5 is not only provided with structural support, but also can play a good anti-extrusion role for the steel wire rope, effectively improve the elastic buffering performance of the steel wire rope, slow down the pressure received by the steel wire rope, and thus prevent the steel wire rope from deforming. The gap formed between the first rubber support plate 53, the second rubber support plate 54, the first rubber layer 51 and the second rubber layer 52 not only further increases the propagation path and scattering of sound waves in the material, which helps to improve the sound absorption efficiency, but also provides a filling gap for the polyester fiber sound-absorbing cotton 55. By filling the polyester fiber sound-absorbing cotton 55 in the gap, the sound absorption and noise reduction performance of the steel wire rope is greatly improved, which can effectively reduce the noise generated by the internal steel wire friction of the steel wire rope during operation and the noise transmitted from the outside of the steel wire rope, and achieve the effect of noise reduction.

[0042] The wear-resistant layer 6 is arranged on the outer surface of the second sound-absorbing layer 5, and a moisture-proof layer 8 is further arranged between the wear-resistant layer 6 and the second sound-absorbing layer 5. The wear-resistant layer 6 is a manganese phosphating coating, and the moisture-proof layer 8 is a honeycomb aluminum film layer.

[0043] The manganese phosphating coating as a wear-resistant coating can greatly improve the wear resistance of the steel wire surface. Moreover, the manganese phosphating coating has high hardness, strong corrosion resistance, and is firmly combined with the steel wire substrate, and is not easy to fall off, thereby effectively prolonging the service life of the overall structure. The honeycomb aluminum film layer has excellent moisture-proof performance. The internal air compartment structure can block the penetration of external moisture, and effectively prevent the internal structure of the steel wire rope from being damp and corroded.

[0044] The above only discloses preferred embodiments of the present application, and of course cannot limit the scope of the application. Therefore, equivalent changes made within the scope of the application still fall within the scope of the application.

Claims

1. A high-strength low-noise elevator steel wire rope, characterized in that, The utility model provides a kind of sound-absorbing rope, comprising: A rope core, the rope core includes a carbon steel composite core A and several root interlaced braided sisal fiber filaments and aramid fiber filaments uniformly wrapped outside the carbon steel composite core; An inner layer strand layer, the inner layer strand layer includes several inner layer strands spirally wrapped outside the rope core in face contact; A first sound-absorbing layer, the first sound-absorbing layer is uniformly wrapped on the outer surface of the inner layer strand layer, and the first sound-absorbing layer is made of polyester fiber sound-absorbing cotton; An outer layer strand layer, the outer layer strand layer includes several outer layer strands spirally wrapped outside the first sound-absorbing layer in face contact; The outer gap between two adjacent inner layer strands is filled with a reinforcing strand, and the outer gap between two adjacent outer layer strands is also filled with a reinforcing strand; A second sound-absorbing layer, the second sound-absorbing layer is uniformly wrapped on the outer surface of the outer layer strand layer; The second sound-absorbing layer includes a first rubber layer and a second rubber layer uniformly wrapped outside the first rubber layer, and a plurality of first rubber support plates and second rubber support plates are arranged between the first rubber layer and the second rubber layer, the first rubber support plates are uniformly distributed between the first rubber layer and the second rubber layer, and the two ends of the first rubber support plates along the width direction are respectively fixedly connected with the first rubber layer and the second rubber layer. The second rubber support plates are respectively arranged between two adjacent first rubber support plates, and one end of each second rubber support plate along the width direction is connected with the adjacent first rubber support plate close to the end of the first rubber plate, and the other end is connected with the other adjacent first rubber support plate close to the end of the second rubber plate. The first rubber support plates and the second rubber support plates are filled with polyester fiber sound-absorbing cotton.

2. A high strength low noise elevator wire rope as claimed in claim 1, wherein, A wear-resistant layer is arranged on the outer surface of the second sound-absorbing layer.

3. A high strength low noise elevator wire rope according to claim 2, characterized in that, The reinforcing strand includes a first reinforcing strand filled between the outer gaps of two adjacent inner layer strands and a second reinforcing strand filled between the outer gaps of two adjacent outer layer strands.

4. The high strength, low noise elevator wire rope of claim 2, wherein, The first reinforcing strand includes a carbon steel composite core B and a plurality of polyester fiber filaments uniformly wrapped outside the carbon steel composite core.

5. The high strength, low noise elevator wire rope of claim 2, wherein, The second reinforcing strand is a compact strand.

6. The high strength, low noise elevator wire rope of claim 1, wherein, The rope core and the second reinforcing strand are infiltrated with lubricating grease.

7. The high strength, low noise elevator wire rope of claim 1, wherein, The inner layer strand is divided into three layers, including a strand core fine steel wire, six inner layer fine steel wires, and twelve outer layer fine steel wires.

8. The high strength, low noise elevator wire rope of claim 1, wherein, The outer layer strand is divided into three layers, including a strand core thick steel wire, nine middle layer fine steel wires, and nine outer layer thick steel wires.

9. The high strength, low noise elevator wire rope of claim 1, wherein, The twisting direction of the rope core is the same as that of the outer layer strand and opposite to that of the inner layer strand. A moisture-proof layer is further arranged between the wear-resistant layer and the second sound-absorbing layer. The wear-resistant layer is a manganese-based phosphating coating.

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