60-R(Ⅲ)型牙轮钻机回转减速箱引风接头由于构造不合理(附图A),锁板上的档块往往开焊,调整备帽和调整帽经常橹扣或回扣,使密封失效而导致引风接头漏水,以致每台钻机平均每月需更换中空轴一次,处理引风接头漏水一次,既影响生产,又增加穿孔成本。为此, 60-R (Ⅲ) Type Rotary Drilling Rigid Gearboxes Induction Fittings Due to unreasonable structure (Figure A), the stoppers on the lock plate are often welded, and the adjusting cap and adjustment cap are often snapped or rebated to seal Failure led to the leakage of lead-induced joints, so that each rig on average need to be replaced once a month the hollow shaft, handle the water leakage joints once, both affect the production, but also increase the cost of perforation. to this end,