| 摘要 |
FIELD: building. ^ SUBSTANCE: invention relates cotter joints of tower sections of column crane. Cotter joint of tower sections includes fundament made of plate, performed on the one of fundament sides first working surface for interrelation with lug surface of one jointed detail, which is located from the opposite side of fundament, second operational surface on second side for interrelation with lug surface of second jointed detail. First operation surface is created with cotter-headed rod having in section segment form, and cotter is made in form of rectangle. ^ EFFECT: reliability improvement of tower sections joining of column crane. ^ 3 dwg |
