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Analysis of Impact Friction in the Winding Process of Stainless Steel Wire Rope
- 2020-09-02-

Analysis of Impact Friction in the Winding Process of Stainless Steel Wire Rope


The stainless steel wire rope is always in contact with the support rope during the process of winding into the drum, and under the pushing and guiding action of the support rope, the stainless steel wire rope is wound into the rope groove to achieve an orderly and regular winding. By investigating the contact between the stainless steel wire rope and the guide rope at the stage of winding into the rope groove, the newly wound stainless steel wire rope is in an unstable state. The stainless steel wire rope does not gradually wind into the rope groove smoothly, but quickly slides down into the rope groove, facing the next two layers. The adjacent loops produce an impact.


The degree of impact of the stainless steel wire rope is different depending on the winding position on the drum. The impact of stainless steel wire rope winding process is mainly divided into the following situations:


(1) The guide rope is the winding impact of the next layer of stainless steel wire rope


The stainless steel wire rope starts to contact the guide rope in the cross-section state, and the contact form is line contact. At this time, the stainless steel wire rope is in a critically stable state; then the stainless steel wire rope contacts the guide rope and enters an unstable state, after which the stainless steel wire rope directly impacts into the rope groove under the lifting tension. , Has a significant impact on the lower layer of stainless steel wire rope; after the impact process, the stainless steel wire rope is completely wound into the rope groove to reach a stable contact state.


(3) Impact of stainless steel wire rope caused by changes in lifting acceleration


In the whole process of hoisting materials, the lifting acceleration often changes, causing the tension and lifting speed of the stainless steel wire rope to constantly change, which in turn causes the newly wound stainless steel wire rope to have an impact on the lower stainless steel wire rope. At the same time, the change in the tension of the stainless steel wire rope causes a layer. The stainless steel wire ropes are relatively creeping, and the impact friction phenomenon is obvious.


In summary, the process of winding the stainless steel wire rope into the rope groove is in an unstable state, and all slide and impact into the rope groove, which has an impact on the lower layer of the rope loop. At the moment of impact of the stainless steel wire rope, the stainless steel wire rope and the lower loop are not relatively static, but in a relative sliding state, which causes impact friction between the stainless steel wire rope.