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The impactor won't catch the down-the-hole drill, so it's the reason.
Release time:
2019-10-21
Author:
Source:
Earthwork, mining, water well drilling, construction works are usedDTH BIT, But the down-the-hole drill always falls off during the construction process, and the impactor alwaysThe reason why the DTH drill can't be stuck is because of it.
The failure of the front joint of the impactor to jam the drill bit is mainly due to the premature wear of the flat key root of the down-the-hole drill bit, which is easy to fall off and fall into the hole during rock drilling. During rock drillingThe situation that causes the root of the flat key of the down-the-hole drill bit to wear in advance is generally due to the soft working rock formation and the poor straightness of the hole leading to the empty hammer of the down-the-hole drill bit.The impact stroke of the hole drill bit is too long. In this case, the use of a perfectly produced DTH bit can prevent the DTH bit from falling off and falling into the air due to the wear of the flat key root of the DTH bit.
I understandDTH BITAfter the reasons for falling off, the selection of the drill bit must meet the construction conditions of the formation, which is also an important point to improve work efficiency.
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