RU2003106400A - Rolling cage with a pair of CVC rolls - Google Patents

Claims (2)

1. A rolling stand with a pair of CVC rolls, mainly a pair of working CVC rolls (1,1 ') and a pair of backup rolls (2) having a contact zone (b _cont ) in which a horizontal moment (M) acts, leading to wiring rolls (1,2) and due to this, the occurrence of axial forces in the roll supports, characterized in that the moment (M) is reduced due to the choice of the corresponding roll contour (1,1 '), determined by the polynomial expression R (x) = a ₀ + a ₁ · x + a ₂ · x ² + ... ... + a _n · x ⁿ , where R (x) is the radius; x is the coordinate in the longitudinal direction of the barrel; and ₀ is the current radius of the roll; and ₁ is an optimization parameter (wedge factor) formed autonomously as an average value from different displacement positions of the CVC rolls (for example, minimum, neutral, and maximum displacement positions); a ₂ -a _n - installation CVC-range system, moreover, the CVC contour with the optimized wedge shape is such that the tangent (8 ') to the end diameter (7') and the convex portion of the roll (1 '), and the tangent (10') to the other end diameter (9 ') and the concave portion of the roll pass parallel to each other and are inclined relative to the axis of the rolls at the optimal angle (α) of the wedge. 2. The crate according to claim 1, characterized in that the optimization parameter a ₁ for the roll (1,1 ') with a radius in accordance with a third-order polynomial expression lies in the range a ₁ = f ₁ · a ₃ · b $\genfrac{}{}{0ex}{}{\text{2}}{\text{cont}}$ , and for a roll (1.1 ’) with a radius in accordance with a fifth-order polynomial expression, in the range a ₁ = f ₁ · a ₃ · b $\genfrac{}{}{0ex}{}{\text{2}}{\text{cont}}$ + f ₂ · a ₅ · b $\genfrac{}{}{0ex}{}{\text{4}}{\text{cont}}$ , Where