提土钻的失效分析及其设计改进

针对地质汽车钻机用提土钻在使用过程中,经常出现的损坏理象,从力学理论上进行了失效分析,并找出了损坏原因,在此基础上对原提土钻提出了设计改进措施:增加叶片厚度,顶等第(?)片增设勒刀和对该圈叶片外缘予以堆焊(堆507焊条)。经强度校核和实际应用,验证了上述设计改进措施是可行的.

Uneffective Analysis of The Lifting Soil Drill and Some Improvements in Design

The damage causes of the lifting soil drill head, installed on the truck drilling machine for geological exploration have been discoved through an analysis of uneffectiveness on the basis of mechenical theories. some improvements in design have been made: increasing the blade thickness, welding a puadrilateral vertical steel pillar on the first cycle blade and making an overlayingweld (electrode No. 507)on the blade outer edge of the first cycle. The strength calculations and practical uses proved that the improvements were feasible. Lifting soil drill head uneffective analysis .