What should be paid attention to in the use of a word drill bit?

Release time:

2019-01-16

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Blast bit is divided into a type, three blade type, cross type, blast furnace opening type. Among them, the most widely used rock drill bit in China is a font. Its connection form is mainly tapered connection, which is used with tapered drill rod (commonly known as finished brazing). In order to correctly use the in-line drill bit and prolong the service life, the following points should be paid attention to: 1. When drilling holes, the rock drill should reduce the air volume to reduce the damage to the drill bit caused by high stress in the hard alloy sheet. When the drill bit is completely drilled into the rock, the normal air volume should be used; 2, to ensure good fit with the tapered drill rod (taper is consistent, the depth of the drill rod inserted into the drill bit taper must be greater than 25mm, and drill bit

Blast bit is divided into a type, three blade type, cross type, blast furnace opening type. And this is the most widely domesticThe rock drill bit used is a straight shape. Its connection form is mainly tapered connection, which is connected with tapered drill rod (commonThe finished steel rod) is used together. In order to correctly use the line-shaped drill bit and prolong the service life, the following points must be notedmeaning:

1. When drilling holes, the rock drill should reduce the air volume to reduce the damage to the drill bit caused by high stress in the local part of the hard alloy sheet,When the drill bit is completely cut into the rock, then use the normal air volume;

2. Ensure good coordination with tapered drill rod (the taper is consistent, and the depth of drill rod inserted into drill cone must be greater than 25mm,And the head of the drill rod should not reach the bottom of the drill hole), otherwise it is easy to lose the drill bit; Note: It is best to use drill bit products.It is the same manufacturer as the tapered drill rod used to ensure that the taper is consistent and has a good fit.

3. When using the drill bit, if you encounter foreign matters such as steel bars, you should adjust the drilling position to prevent the drill bit from being damaged;

4, when the drill bit cutting edge platform width ≥ 3mm, should be timely replacement or grinding, so as not to reduce the drilling speed,Cause fragments and splits of the drill bit and reduce the service life; when the drill bit has an inverted cone, it should be replaced or ground in time.Head, otherwise it will seriously wear the drill head, reduce the drilling speed, and even card drill;

5. For rocks that cause serious wear of the straight-shaped drill bit, slow drilling footage and serious debris, consideration should be given to replacing them.It alloy grade drill bit or use cross-type drill bit, ball tooth drill bit, and timely written notice to our company, in order to andwhen processed.

6. When rock drilling is prone to jamming, the in-line drill bit should be replaced with cross drill bit or ball tooth drill bit;

7, when the rock is soft, easy to drill rock, the use of the whole drill (drill head directly on the drill rod production) can greatly improve the chiselRock velocity;

8, the drill bit in the rock drilling process should try to ensure that the water supply, in order to prevent the card drill, improve the service life of the drill bit and rock drillingefficiency;

Key words:

Which, drill bit, rock drilling, use, font, lower, taper, replacement, timely, serious

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