Repacking practice for G-3 engineering driller power unit with drive shaft of dual channel reverse circulation

In order to satisfy operating requirements for constant core drilling technology in reverse circulation with hollow-through DTH,the power unit of G-3 engineering driller was ameliorated. The new one with dual channel drive shaft, achieved the perfect assemble with transmission structure of the original power unit. It could interconvert according to need by using two sets of drive shafts with direct and reverse circulation. The repacked G-3 engineering driller carried on experiment in the field test in Luanchuan molybdenum mine of Henan, whose effect was very good.

铰链制造工艺改进与模具设计

介绍了一种用套芯轴弯管方法加工铰链的新工艺,并对模具设计、工作原理进行了详细阐述,设计的模具动作准确、灵活、可靠,加工的铰链达到尺寸精度要求,生产效率高。

搭扣铰链制造工艺改进与模具设计

本文介绍了用套芯棒卷圆工艺加工搭扣铰链的新方法,通过对两种预弯工艺进行对比分析,采用了较好的一种工艺,并对预弯模及卷圆模进行设计,最后详细阐述了其工作原理。所设计的模具动作灵活,定位准确、可靠,生产效率高,批量生产的搭扣铰链尺寸一致性好。