DTH hammer drill is mainly used in open-pit mining, quarry, building, water conservancy and hydropower base excavation engineering, water well drilling, traffic engineering, cement, mining, rock anchor hole drilling, and underground metal mining and other construction site.
Compared with common drilling machine, DTH drill machine is a deep drilling, drilling aperture is large, relatively high drilling efficiency, widely applicable, etc. So in drilling machinery products occupy a large piece of the market, especially in the 110 ~ 171 mm gun directly in hole drilling
engineering, Dth Drilling Rig has become one of the main drilling machinery.
DTH drilling tool in the process of drilling, drilling have high straightness, slagdischarge ability is strong, the hole wall is smooth, easy to populate the explosives, deep hole drilling tool and effective energy transmission are beyond any other drilling methods. At the same time, the DTH Drilling Rig has low equipment investment, easy maintenance, etc. Be paid attention to by the drilling industry. Over the past few years, with the high pressure the market popularity of screw rod type air compressors, DTH drilling jumbo sales increasing year by year. Drilling engineering construction of DTH drilling drilling tools, especially the demand of the high air pressure DTH drilling tools also will continue to grow.
Now, drill steel industry production high wind pressure of the domestic enterprises have a certain number, product type and scale of production also has a great progress.
As fuel prices continue to rise, the operation efficiency of construction machinery has become a very important project. Select high efficiency drilling machinery need to configure the quality and efficient drilling and drilling tools. During the drilling operations, DTH bit face structure, powder groove shape, carbide tooth shape and size, side step tooth Angle and a series of factors directly affect the drilling efficiency, as well as the bit life. , smooth hole wall roughness. Request according to the different way of drilling and rock type choose different DTH drill.
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In order to improve the drilling efficiency of drilling tools and the service life of bit and abroad in recent years the high air pressure DTH bit structure has changed. As cloth a bit face column gear tooth structure made some adjustments, in order to improve the drilling speed; Increased the teeth height so that the rapid discharge of cuttings reduce secondary crushing rate, also to facilitate the grinding tooth bit alloy;
The bit at the top of the taper length is shorten, in order to avoid sticking, falling off the handle and top phenomenon; At the same time the high air pressure DTH drill with increase of the fatigue strength of the steel requirements.
DTH drilling and the drilling efficiency is directly related to end shapes and bit service life. The high air pressure DTH drill mainly adopts five end shapes: planar drill bits, drill bit fast, convex bit, concave type of core bit and rocket type drill bit.
Planar drill bit, drill bit is strong and durable, suitable for drilling hard and very hard rock, can also be applied to the hard rock and abrasion resistance of the rock. Bit using large ball tooth alloy directly, the head is equipped with powder tank, which can effectively remove debris.
Fast bit: core for spring tooth bit, edge using ball tooth, configuration larger pores and powder groove, end face for planar. This shape of drill bits in drilling hard rock and hard abrasive, the rock has high drilling speed.
Convex type bit: equipped with larger powder groove, in drilling soft rock and hard rock with high drilling speed. At the same time also applicable drill abrasive rock.
High air pressure DTH Drilling Rig is one of the large diameter drilling engineering in the heavy usage of a drilling machine. In recent years, the domestic engineering market DTH drilling tools, especially the rapid growth of high air pressure DTH drilling tools usage.
Can be expected, the drilling machinery engineering fields at home and abroad will have greater market space for development. Our company will further attaches great importance to the high air pressure DTH bit development and
production.
