Eccentric drill bit adjusting method for combined down-the-hole hammer

The invention discloses an eccentric drill bit adjusting method for a combined down-the-hole hammer, which is suitable for the combined down-the-hole hammer capable of adjusting the size of an eccentric drill bit, and the eccentric drill bit is connected with a down-the-hole hammer body through a size adjusting mechanism and a locking mechanism; during adjustment, firstly, the eccentric drill bit is in a free state through the locking mechanism, then the eccentric drill bit is adjusted to the preset size through the size adjusting mechanism, and finally the position of the eccentric drill bit is locked through the locking mechanism again. According to the eccentric drill bit adjusting method, the adjusting operation of the eccentric drill bit is simplified, the adjusting accuracy of the eccentric drill bit is improved, the labor amount of workers is effectively reduced, and the punching work can be smoothly carried out. 本发明公开了一种用于组合式潜孔锤的偏心钻头调节方法，适用于可调节偏心钻头尺寸的组合式潜孔锤，其偏心钻头通过尺寸调整机构和锁定机构与潜孔锤本体相连；调节时，首先通过所述锁定机构使偏心