| 摘要 |
FIELD: agriculture. ^ SUBSTANCE: proposed working member has shell in form of truncated cone and abrasive strips arranged on surface of shell. Abrasive strips arranged on surface of shell. Abrasive strips with different size abrasive grains are arranged along cone generating line. Axes of symmetry of abrasive strips with axis of cone form angle alpha found from equation alpha=2pi(D-d)/[4h2+(D-d)2]1/2 where d is large diameter of truncated cone; d is small diameter of truncated cone; h is height of truncated cone. ^ EFFECT: enlarged operating capabilities, reduced production wastes. ^ 3 cl, 3 dwg |
