Steel wire rope composite sisal hemp rope core for elevator and preparation method thereof

Abstract

The invention discloses a steel wire rope composite sisal hemp rope core for an elevator and a preparation method thereof. The steel wire rope composite sisal hemp rope core is prepared by using sisalhemp, aramid fibers and a stainless steel wire as raw materials for weaving. The composite rope core is prepared by multiple times of twisting 3-6 sisal hemp composite core folded yarns, and each sisal hemp composite core folded yarn is formed by a sisal hemp yarn, a palm yarn, and an aramid fiber / stainless steel core covering yarn in a certain proportion. The palm yarn is uniformly distributed in a main core, and the outside of the main core is wrapped by the aramid fiber / stainless steel core covering yarn. The rope core for a steel wire rope is prepared by using the palm yarn and the aramidfiber / stainless steel core covering yarn, defects of the sisal hemp rope core that capacity of storing grease is inadequate, there are many burrs, uniformity is poor, a local part is protruded and the like are solved, and strength of the composite rope core is optimized.

Description

technical field [0001] The invention belongs to the field of composite ropes, and in particular relates to a steel wire rope composite sisal rope core for elevators and a preparation method thereof. Background technique [0002] The elevator wire rope plays the role of suspending the elevator car, and its safety instability directly leads to accidents. [0003] The rope core plays a supporting role in the radial direction, maintains the stable physical structure of the steel wire rope, stores the rope core grease, and when the steel wire rope is subjected to compressive stress due to load, part of the grease is released to lubricate the wire rope strands. The fiber rope core steel wire rope is soft and flexible, and can use a pulley with a smaller diameter to change direction, and the bending stress generated when the steel wire rope deforms around the pulley is small. [0004] The quality of the existing sisal rope core has the following disadvantages: (1) The diameter of ...

AI Technical Summary

Problems solved by technology

[0004] The quality of the existing sisal rope core has the following disadvantages: (1) The diameter of the fiber rope core is uneven and the dispersion is large; (2) The ability of the fiber rope core to store oil is insufficient; (3) A large number of short fibers ( Yarn lumps), resulting in partial protrusions of the steel wire rope after twisting, and the interaction between the protrusions and the pulleys will be worn due to the stress concentration effect and broken wires will occur, which will lead to the scrapping of the whole rope