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Originally published as Secrets..? Teach you how to distinguish the drill. Name of drilling rig and trolley? In the following, the professional terms that are easy to be confused in the rock drilling machinery commonly used in several mainstream mechanical drilling methods are sorted out, the terms such as top hammer impact t of social The percussive principle is applicable to the drilling of medium-hard and above rocks. The equipment for drilling by percussive method includes pneumatic rock drill, hydraulic rock drill, down-the-hole drill, steel cable percussive drill,fastest dth hammer, etc. Percussion drilling can be divided into two types: down-the-hole drilling and top-hammer drilling. 2.1.1 Principle of down-the-hole drilling The principle of down-theigure 4. The drill is connected to the roller cone bit through the drill rod, and the drill rod is used to pressurize the bit into contact with the rock. At the same time, under the rotating action of the drill pipe, the cone with column teeth on the drill bit rolls, and through the column teeth in contact with the rock,mining drill bit, the vibraing and vibrating drilling operations, cannot be called rock drilling. 04. Definition of down-the-hole hammer, rock drill and power head 4.1 Definition of down-the-hole impactor As the name implies, mining dth bit ,mining dth bit, the down-the-hole impactor is a tool that uses the principle of down-the-hole impaction to drill holes. Down-the-hole impactor is called impactor, English "Down The Hole Hammer" ", so it is alsll; (6) Open-air top hammer percussive drilling equipment should be called open-air top hammer drilling rig; (7) Tunnel and underground top hammer percussive drilling equipment should be called rock drilling jumbo; (8) Drilling equipment modified from automobiles should be called drilling rig; (9) If the traveling speed is very slow, such as less than 10KM/H,Borehole Drill Bits, it should be called a drilling rig. Thank you for reading, remember to press the official account! Return to Sohu , see more Responsible Editor:. wt-dthtools.com