About Reason for high propulsion pressure resistance of rock drill
In the rock drilling progress, the resistant force results in tools failure and the low drilling efficiency; thus, it is necessary to reduce the tools failure and enhance the drilling efficiency.
In the rock drilling progress, the resistant force results in tools failure and the low drilling efficiency; thus, it is necessary to reduce the tools failure and enhance the drilling efficiency.
eficiency; thus, it is necessary to reduce the tools failure and enhance the drilling eficiency. In this paper, diferent configuration modes of drilling performance assisted with water jet are explored based on the mechanism and experiment analysis of rock drilling assisted with water jet.
To optimize and improve the impact performance of a hydraulic rock drill, it is helpful to test the stress waves of the drill and analyze the impact energy, impact frequency, and energy utilization rate. For this study, a stress wave test bench was designed and built, according to international.
The hydraulic rock drill is the core component of the hydraulic rock drilling jumbo, and its rock drilling efficiency directly affects the efficiency, application cost, and benefit creation of the hydraulic rock drilling jumbo. Therefore, understanding the factors that affect the drilling.
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6 FAQs about [Reason for high propulsion pressure resistance of rock drill]
Why is a resistance force important in rock drilling?
In the rock drilling progress, the resistant force results in tools failure and the low drilling efficiency; thus, it is necessary to reduce the tools failure and enhance the drilling efficiency. I...
Why is high pressure water jet used in rock drilling?
Moreover, the high-pressure water jet is helpful not only to reduce the drill rod deflection, but also to reduce the probability of drill rod bending and improve the drill rod service life. Fragmentation mechanism of drilling assisted with water jet. The bit forces of water jet assisted rock drilling. Stress produced by water jet.
How does water pressure affect the rotatory speed of hydraulic rock drill?
And the bit surface continuous grind on the wall under the rotary action led to the increase of rotary resistance and drilling resistance; thus, the rotatory speed and drilling speed of hydraulic rock drill decreased with the increasing of water pressure.
Can high-pressure sealing device solve the sealing problem of water jet assisted rock drilling?
In the present work, the mechanism of water jet assisted rock drilling was explored and the high-pressure sealing device was designed to solve the sealing problem of the rock drilling assisted with water jet.
Can a high-pressure water jet be combined with impact drilling?
On the other hand, the majority of research was combined with rotary drilling but rarely with impact drilling, and the research of high-pressure water jet sealing device which can realize axial and rotational movement simultaneously was needed, so it is necessary to explore the high-pressure water jet combined with impact drilling.
What factors affect drilling assisted with high-pressure water jet?
Test device of drilling assisted with water jet. There were many factors influencing the effect on drilling assisted with high-pressure water jet, such as nozzle diameter, water pressure, target distance, bit structure, nozzle number, and the nozzle position.