空气锤是我厂的主要锻造设备,它主要用来胎模锻和模锻之用。其锤杆堵头有螺纹联接和压配合联接两种,在使用中,经常发生联接破坏和堵头脱落现象。前者是螺纹滑牙而脱落,估计强度不够,将原设计的细牙改为粗牙,还是不行;后者则是松动脱落和剥落情况都有,过盈量小了,就松动脱落,过盈量多了,就剥落下来。后来采用外厂经验,在螺纹联接 Air hammer is my factory’s main forging equipment, it is mainly used for tire forging and die forging purposes. The hammer rod plug threaded connection and pressure with two kinds of connection, in use, often occur joint damage and plug off phenomenon. The former is a thread slippery tooth and fall off, it is estimated that the strength is not enough, the original design of fine teeth to coarse teeth, or not; the latter is loose off and spalling are, the amount of interference is small, loose off, Much more, it peeled off. Later using the experience of the factory, the thread connection