CN-122013576-A - Steel wire rope for elevator

CN122013576ACN 122013576 ACN122013576 ACN 122013576ACN-122013576-A

Abstract

The invention discloses a steel wire rope for an elevator, which comprises a steel wire rope body and a core body, wherein the steel wire rope body comprises a steel wire rope outer layer and a steel wire rope middle layer, the core body comprises a core oil storage component, the core oil storage component comprises a core oil storage layer and a core wrapping layer, the core oil storage layer is wrapped by the core wrapping layer, and an oil conveying channel penetrating through the core wrapping layer is arranged on the core wrapping layer. The structure remarkably improves the strength and the supporting performance of the rope core, and effectively prevents excessive overflow of grease inside the rope core in the using process. Meanwhile, the porous cylindrical ring body structure can realize slow release of grease, and continuous and sufficient lubrication of the steel wire strands is ensured. In addition, the invention reduces the dead weight of the steel wire rope and effectively improves the integral strength of the steel wire rope.

Inventors

GAO TENG
QIAN JIAJUN
HE JUNKAI
NIU HUARONG
CAI XIAOHUA
ZHONG TAO
LI BAOJUN
GUO JINKAI

Assignees

上海三菱电梯有限公司

Dates

Publication Date: 20260512
Application Date: 20260326

Claims (10)

1. The steel wire rope for the elevator is characterized by comprising a steel wire rope body and a core body, wherein the steel wire rope body comprises a steel wire rope outer layer and a steel wire rope middle layer, the core body comprises a core body oil storage component, and the core body oil storage component comprises: The core body oil storage layer is composed of an elastic component; the oil-conveying device comprises a core body wrapping layer and a core body oil storage layer, wherein the core body wrapping layer wraps the core body oil storage layer, and an oil-conveying channel penetrating through the core body wrapping layer is arranged on the core body wrapping layer.
2. The steel wire rope for an elevator according to claim 1, wherein the number of the elastic members is at least 1 group, and each group of the elastic members is formed by rolling at least 3 cylindrical elastic bodies in spiral turns.
3. The steel wire rope for elevator according to claim 1, wherein the material of the elastic member is a modified ultra-high molecular weight polyethylene material, which is prepared by linking lipophilic groups, which are long chain alkane or polysiloxane segments, to the surface of the fiber by chemical grafting technique.
4. The steel wire rope for an elevator according to claim 1, wherein the material of the core wrap is polyurethane elastomer, nitrile rubber or polyimide.
5. The wire rope for an elevator according to claim 1, wherein the elastic member is twisted in a direction opposite to the twisting direction of the outer layer of the wire rope and the middle layer of the wire rope.
6. The steel wire rope for an elevator according to claim 1, wherein the wall thickness of the core coating layer is 1/4 to 1/5 of the diameter of the core, and the maximum thickness is not more than 1.5mm.
7. The steel wire rope for an elevator according to claim 1, wherein the core oil storage assembly is 1 group.
8. The steel wire rope for an elevator according to claim 1, wherein the core oil storage components are at least two groups, and each group is sequentially sleeved.
9. The wire rope for an elevator according to claim 7, wherein the core coating layer has a cylindrical ring structure and is provided with through holes, and the holes are arranged in the axial direction or the circumferential direction of the cylindrical ring structure.
10. The steel cord according to claim 9, wherein the core wrap inner diameter is in a transition fit with the core reservoir outer diameter tolerance fit.

Description

Steel wire rope for elevator Technical Field The invention relates to elevator equipment, in particular to a steel wire rope which can be used in an elevator system. Background In elevator suspension systems, wire ropes are widely used as traction media. Grease is critical to the steel wire rope, so that the steel wire rope can be guaranteed to have enough traction force, friction among rope strands can be reduced, and the service life of the steel wire rope is prolonged. When the steel wire rope is manufactured, most of grease is stored in the rope core. If the rope core has poor supporting performance, grease is easy to be extruded in the use process, grease is easy to form oil sludge after deterioration and deterioration, and the faults such as elevator slipping and the like are easy to be caused, and if the rope core has poor oil storage performance, a steel wire rope is easy to generate dry friction due to oil shortage in the use process, so that the phenomena such as powder falling and chip falling are caused, and the safety of elevator riding is seriously influenced. Therefore, how to improve the supporting performance and the oil storage performance of the wire rope core is a problem to be solved. At present, the research of the rope core of the steel wire rope mainly focuses on the application of new materials, the functionalization of structures and the refinement of processes. For example, CN202310767856.0 proposes a synthetic fiber core steel wire rope, which has improved bending fatigue resistance, but the rope core has poor supporting property, grease is easy to be extruded, and the problems of oil shortage, chip and powder fall are caused. As another example, CN202511865360.2 proposes a composite structure of an oil-storage rope core, but the defect of poor oil-storage performance of the artificial rope core is not improved yet. Disclosure of Invention The invention aims to solve the technical problems that the existing steel wire rope is poor in support, difficult in oil storage, easy to generate oil sludge and low in dust and chip removing life. The elastic body is a high polymer material, is uniform and good, has a thicker diameter, is good in compact supporting property, is suitable for being used as a rope core, but is difficult to store oil, hard in rope core and high in rope core material stress compared with the fiber. In order to solve the problems, the invention provides a steel wire rope for an elevator, which comprises a steel wire rope body and a core body, wherein the steel wire rope body comprises a steel wire rope outer layer and a steel wire rope middle layer, the core body comprises a core body oil storage component, and the core body oil storage component comprises: The core body oil storage layer is composed of an elastic component; the oil-conveying device comprises a core body wrapping layer and a core body oil storage layer, wherein the core body wrapping layer wraps the core body oil storage layer, and an oil-conveying channel penetrating through the core body wrapping layer is arranged on the core body wrapping layer. Preferably, the number of the elastic components is at least 1 group, and each group of the elastic components is formed by rolling at least 3 elastic components in a spiral twisting mode. Preferably, the material of the elastic component is a modified ultra-high molecular weight polyethylene material, the modified ultra-high molecular weight polyethylene is prepared by linking lipophilic groups to the surface of the fiber through a chemical grafting technology, and the lipophilic groups are long-chain alkane or polysiloxane chain segments. Preferably, the material of the core wrapping layer is polyurethane elastomer, nitrile rubber or polyimide. Preferably, the twisting direction of the elastic component is opposite to the twisting direction of the outer layer of the steel wire rope and the middle layer of the steel wire rope. Preferably, the wall thickness of the core coating layer is 1/4 to 1/5 of the diameter of the core, and the maximum thickness is not more than 1.5mm. Preferably, the core oil storage components are 1 group. Preferably, the core oil storage components are at least two groups, and each component is sleeved in sequence. Preferably, the core body wrapping layer is of a cylindrical ring body structure and is provided with a through hole, and the hole is arranged in the axial direction or the circumferential direction of the cylindrical ring body structure. Preferably, the tolerance fit between the inner diameter of the core wrap and the outer diameter of the core reservoir is a transition fit. Compared with the prior art, the invention has the beneficial effects that: the cylindrical ring body structure of the core body and the elastic component are twisted and rolled, so that the overall supporting performance of the rope core is improved, the elastic modulus of the steel wire rope is improved, and the wear resistance of the rope core