Electric Winch Wire Rope Selection

Wire rope is an important part of electric winch, so it’s need high strength and toughness. Electric winch is the use of drum winding wire rope or chain, to enhance or tow the weight of a light and small lifting equipment. When the winch use more frequently, it is need to select the appropriate wire rope. Rope is an important guide tool for winches to pull or lift heavy objects to a fixed position.

Electric Winch Wire Rope Types

Point contact wire rope

Line contact wire rope

Line contact rope is come from the different diameter wire control system, each layer of steel wire pitch equal, because the outer wire is located within the inner layer of the wire between the grooves, so the formation of line contact between the outer layer of wire. Although the inner steel wire of this kind of steel wire rope is subjected to a little larger stress than the outer steel wire, it avoids the stress concentration and eliminates the secondary bending of the steel wire at the contact place and reduces the frictional resistance between the steel wires. So that the rope has greater flexibility in the bending, thereby significantly improving the fatigue strength, the life expectancy is usually higher than the point of contact with the rope. As the line contact wire rope contact wire rope than the effective total area of steel wire, and therefore high carrying capacity.

The wire rope use in winch

• Select the rated electric hoist traction should pay attention to the maximum tensile rope pulley runner cannot be greater than 85% of the rated power of electric windlass.
• Winch using Notes

1. The rope should be wound from the bottom of the winch winding machine to ensure the stability of the winch;
2. The rope on the reel cannot be all released, at least keep a 3 to 4 laps, in order to ensure the solid end of the rope fixed;
3. It should be as far as possible ensure that the direction of wire rope into the drum in the middle of the drum and reel.
4. The minimum distance between the winch and the last guide wheel shall not be less than 25 times the length of the reel, so as to ensure that the angle between the winch and the center line meets the stipulation when the wire rope is wound to one end of the reel. The selection of wire rope and the use of winch is more common in mechanical and electrical engineering of lifting equipment, is the need for two construction division carefully selected in the selection. At the same time, it is also necessary to pay more attention to candidates who are undergoing second-level construction division exam review.

Henan Yuantai crane and winch manufacturers suggest that if the same breaking force in the case of line contact with wire rope, you can use a smaller pulley and drum diameter, so that the size of the entire mechanism to reduce.