Wire Ropes Drive

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TOPIC: - Wire rope drive mechanism for reciprocating linear motion SUBMITTED TO: SUBMITTED BY: Mr. SUMIT SHOOR T. SACHIN KUMAWAT SECTION: M3RO6 ROLL NO.: B36 REGD.NO: 11005617 Wire ropes drive mechanism for reciprocating linear motion introduction Wire rope is a type of rope which consists of several strands of metal wire laid or 'twisted') into a helix. Initiallywrought iron wires were used, but today steel is the main material used for wire ropes.Historically wire rope evolved from steel chains which had a record of mechanical failure. While flaws in chain links or solid steel bars can lead to catastrophic failure, flaws in the wires making up a steel cable are less critical as the other wires easily take up the load. Friction between the individual wires and strands, as a consequence of their twist, further compensates for any flaws. ------------------------------------------------- Wire rope construction Wires Steel wires for wire ropes are normally made of non-alloy carbon steel with a carbon content of 0.4 to 0.95%. The wires are patented [6](heat process). In the following drawing process, the wire cross-section is reduced in stages, for example in seven stages from 6 to 2mm diameter. By the drawing process the nominal strength reaches between 1370 and 2450 N/mm². The very high strength of the rope wires enables wire ropes to support large tensile forces and to run over sheaves with relatively small diameters. Strands In the so-called cross lay strands, the wires of the different layers cross each other. In the mostly used parallel lay strands, the lay length of all the wire layers is equal and the wires of any two superimposed layers are parallel, resulting in linear contact. The wire of the outer layer is supported by two wires of the inner layer. These wires are

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