Down The Hole Drilling Machine
What is down the hole drilling?
Down the hole drilling machine, also as a known DTH drilling machine. The down-the-hole drilling rig uses the impactor and the dth drill bits submerged into the bottom of the hole to impact and crush the rock. Therefore, it is called a down the hole drilling equipment. YG dth drill rig machine is widely used in metal mines, hydropower, transportation, building materials, harbors and national defense projects.
Down the hole drill can drill holes in rocks above medium hard (f ≥ 8). Therefore, down the hole drilling equipment is suitable for large diameter blast hole drilling in small and medium-sized mines. Road construction, water conservancy and rock engineering. And drilling anchor hole in slope support, tunnel support and foundation pit support. The main drilling object of DTH drilling machine is rock stratum. Contact us to get cheap YG DTH drilling machine price.
Classification of DTH drilling machine
1: Divided by walking mode
Small outrigger type down-the-hole drill (YGD70-80-100-120)
Large crawler DTH drill carriage (YGL100T 130 /YGM150T 153 /YGH320)
2: Divided by work power
Pneumatic-electric linkage. Pneumatic-hydraulic linkage (full hydraulic). Fully pneumatic (SKQ100)
3: According to the wind pressure level
Low wind pressure L dth drill rig. Medium wind pressure M dth drilling machine. High wind pressure H down the hole drilling machine.
4: According to the hydraulic power configuration of the drill rig
Diesel-driven down the hole drill rig. Diesel-electric dual-use dth drill rig. Electric down the hole drill rig(need to be customized)
5: According to different places of use, DTH rigs can be divided into underground DTH drilling machine and open-air dth drilling machine.
6: According to the different drilling diameters
Light-duty down the hole drilling rigs (with an aperture of 80~100mm). Medium-duty down the hole drilling rigs (with an aperture of 130~180mm). Heavy-duty down the hole drilling rigs (with an aperture of 180~250mm).
AS a professional dth drilling rig manufacturers, YG Machinery provides all series down the hole drill rig. Which kind of down the hole drilling equipment do you need? Please leave your requirements.
Small outrigger type down-the-hole drill parameters
|Drilling rotate speed||110r/min||110r/min||110r/min||110r/min|
|Working air pressure||0.5-0.7Mpa||0.5-1.0Mpa||0.5-1.0Mpa||0.5-1.0Mpa|
|Max propelled force||3600N/8000N||9600N||9600N||9600N|
|Electric motor power||3KW/4KW||4KW||/||4KW/5.5KW|
|Electric motor voltage||380V||380V||/||380V|
|Drilling rod OD||42mm||50-60mm||50-60mm||60mm|
|Drilling rod length||1025mm||1025mm||1025mm||1025mm|
We have a series down the hole drilling equipment for sale. If you want to get large crawler DTH drill carriage (YGL100T 130 /YGM150T 153 /YGH320) specifications, please feel free to contact us.
YG crawler type dth drilling machine advantages
- The portable dth drill rods holder reduces the time and cost of workers’ handling.
- DTH drill machine operation table of the whole machine is moved forward by 80mm, which is suitable for single-person operation and convenient to observe the drilling progress.
- YG whole dth drilling machine is equipped with a sleeve roller chain. Both the fixed pulley and the movable pulley are driven by a sprocket, which improves practicability and durability.
- The pressure gauge in the dashboard can quickly diagnose drill rig faults.
- Traveling part is equipped with a 0.5S reinforced traveling motor to replace the original 1.6S steel ball motor.
- Rotary motor of the powerhead is improved from the original 700 swing cylinder motor to a high-speed cycloid BM630 motor. Click the following button to get the latest dth drilling machine price.
As one of the best dth drilling rig manufacturers, you can get the ideal construction plan from us. Just leave your requirement by email or message form.
Working Principle of down the hole drilling machine
The working principle of the down-the-hole drilling rig is the same as other rock drilling rigs. Which includes the drilling process of impact, rotation, ballast removal and advancement. DTH machine belongs to percussion rotary drilling. The difference is that the impactor of the down-the-hole drill is installed at the front end of the drill rig rod, submerged into the bottom of the hole. And continues to advance as the drilling extends.
YG down the hole drilling machine is an impact rotary drill. Its internal structure is different from ordinary rock drills. The air distribution and piston reciprocating parts of the down-the-hole drill are independent, namely the impactor. The front end of the impactor is directly connected to the dth bit. And the rear end is connected to the drill rod. When rock drilling, the impactor dives into the hole, and the piston (hammer) in the impactor reciprocates to strike the shank through the gas distribution device (valve). So that the dth drill bits impacts the rock at the bottom of the hole. Waiting for your inquiry.
The high-speed rotation of the impactor in the hole is realized by a separate rotation mechanism. That is a motor or a pneumatic rotating device outside the hole. And a drill rod connected to the back end of the impactor. Rock dust produced during rock drilling is flushed out of the hole by the mixed gas of wind and water. The mixed gas is injected into the impactor through the center of the drill rod by the powder discharge mechanism. And then, enters the bottom of the hole through the air groove on the impactor cylinder. If you have any questions, please feel free to contact us.
Structure composition of down the hole drill rig
The down the hole drill rig consists of a drill rod, a DTH button bits and an impactor. When drilling, use two drill rod extensions to drill. Rotary air supply mechanism consists of a rotary motor, a rotary reducer, and an air supply gyrator. Slewing reducer is a three-stage cylindrical gear enclosed heterosexual component. It is automatically lubricated with a screw lubricator. The air supply gyrator is composed of a connecting body, a seal, a hollow main shaft, and a drill pipe joint. There is a pneumatic clamp for connecting and unloading drill rods. Contact us to get dth drilling machine price right now.
The lifting pressure regulating mechanism is realized by the lifting motor by the lifting reducer, lifting chain. And the turning mechanism and the drilling tool. In the closed chain system, a pressure regulating cylinder and a movable pulley block is installed. During normal operation, the piston rod of the pressure regulating cylinder pushes the movable pulley block to realize the decompression drilling of the down the hole drill rig. Just leave your requirement, we will reply you within 12 hours. Or you can message us directly by WhatsApp: +86 138 3856 5351 or Email: email@example.com.
YG Machinery has a variety of drilling rigs for sale. For example, down the hole drilling rigs machine, water well drilling rig, small water well drilling machine, anchor rig, core drill rig, horizontal directional drilling rig, rotary drilling rig, etc. Now contact us to get the drilling rigs price list. In addition, water bottle filling machine, wet wipes making machine, mask making machine, meltblown making machine. Thermal fogging machine, disinfection fogger mist machine, backpack disinfectant sprayer, disinfection gate, disinfection channel, etc. Contact us now.