holder;grider frame,rest,seat,stand,yoke

Design model for new rig derrick and substructure;

新型钻机井架及底座设计模型

Recnstruction of the derrick and substructure for Daqing 130 rig;

大庆130型钻机井架和底座的改造

For the mast and substructure,as the drilling rig's main components,the structural design project,mostly,of its influence and decide general arrangement of the drill rig.

井架、底座作为石油钻机的主要部件,其结构方案的优劣很大程度上影响和决定着钻机方案的优劣,在超深井钻机设计中,井架、底座技术更是钻机的关键技术之一。

A progressive compound die design for clutch base in a sport utility vehicle was introduced.

介绍了一种越野车中的卡座零件级进复合模设计,将落料、冲孔、翻边和弯曲设计在一副模具中,具有操作简便,生产效率高和操作安全性好的特点。