Breaking tension of wire rope

The breaking tension of the wire rope is the most important indicator among all the mechanical properties of the wire rope, and can be expressed by the sum of the breaking tension of the whole rope.

The breaking tension of the whole rope of the wire rope is a scientific indication that can fully reflect the actual carrying capacity of the wire rope. It is related to the tensile strength of the wire rope.The structure, twist distance, twist quality of the wire rope are closely related. At present, the standards for wire ropes for important purposes in foreign countries and I have clearly stipulated.It only provides the entire rope breaking tension of the wire rope, and does not use the sum of the broken tension of the wire rope. The total of the breaking tension of wire rope was the early days of our countryWire rope enterprises do not have the sum of the broken tension of the whole rope to indirectly reflect the broken tension of the wire rope. With the experiment of my country's wire rope industryThe continuous improvement of means and the continuous improvement of test equipment, the total test of the breaking tension of wire rope will gradually decrease, and will be mainly used in the future.Estimation of the breaking tension force of the diameter wire rope.

The calculation formula of breaking tension

Theoretical calculationBreaking tension of wire ropeThe minimum value is expressed by the following formula:

F=K′D²R/1000

Where:

F—The minimum breaking tension of the wire rope,KN

D—The nominal diameter of the wire rope,mm

K′——The minimum breaking tension coefficient of a wire rope of a specified structure

KSee relevant wire rope information for ′ value

R—The nominal tensile strength of the wire rope,MPa

Minimum breaking tension coefficient of wire ropeK′