Performance parameters of hydraulic rock drill
Design on Key Parameters of Double Damper System for Hydraulic Rock Drill
The lack of research on the double damper system seriously restricted the impact power''s increase of hydraulic rock drills. The structure and working principle of the double
Delayed feedback control and parameter continuation of
Download Citation | Delayed feedback control and parameter continuation of multistability in a nonsmooth hydraulic rock drill model | In response to the complex multistable
ResearchontheMatchingofImpactPerformanceandCollision
Under the action of hydraulic pressure, the piston of the rock drill impacts the drill rod at a certain speed and breaks the rock through the drill rod and the drill bit. At the same time, the
(PDF) Effects of Double Damper System''s Floating Characteristic
The double damper system played an important role in shock absorption and noise reduction of the heavy hydraulic rock drill. However, its floating characteristic had negative
Research on Impact Performance of Hydraulic Rock
Abstract As a technological innovation of high-power hydraulic rock drill, double damping system has a very important effect on impact performance. The
Simulation and Experimental Study on Impact Performance of
As the core component of hydraulic rock drill, the performance parameters of impact mechanism have great influence on drilling efficiency and drilling tool life order to obtain more accurate
Structure of rock-drill drifter | Download Scientific
Download scientific diagram | Structure of rock-drill drifter from publication: A percussion performance analysis for rock-drill drifter through simulation
Design on Key Parameters of Double Damper System for
The heavy hydraulic rock drill with high-frequency and high-power had become the first choice facing large-scale mining and larger-sized tunneling [4–6]. Meanwhile, damper system''s
Delayed feedback control and parameter continuation of
In response to the complex multistable behavior observed in hydraulic rock drills during the drilling process, this study first establishes a four-degree-of-freedom physical model
Theoretical and Experimental Study of the Effects of
Using a self-designed hydraulic impact drilling test-bed and rock core drill, six groups of cylindrical granite specimens (93 mm dia. × 200 mm) containing
Analysis and optimization of the working parameters of the impact
An impact system is the core part of the hydraulic rock drill. The dynamic simulation model of the hydraulic impact system is established based on the system simulation platform
Optimal design of performance parameters for the double
For the case of constant stress wave input in analyzing a hydraulic rock drill, the value of stress waves which arrived the damping piston was calculated after many transmissions and
Impact performance for high frequency hydraulic rock drill
Abstract A high frequency hydraulic rock drill drifter with sleeve valve is developed to use on arm of excavator. In order to ensure optimal working parameters of impact system for the new
Impact performance optimization for hydraulic rock
In response to the issues of overheating of the shell and insufficient impact energy of the hydraulic rock drill, this paper focuses on the
Analysis and optimization of the working parameters of the impact
The impact system with an optimal efficiency is designed, and the working parameters are optimized. Our proposed system efficiency increases by 17.7% after the
Integrated Rock Drill and Splitter | Hydraulic Rock Drill
The integrated drilling and splitting machine is a kind of engineering machinery that integrates the functions of drilling and splitting. It directly installs the rock
Influences of bit button wear on performance of rotary-percussive
A coupling simulation model is developed using the multibody dynamics (MBD) and DEM for rotary-percussive drilling and rock to investigate the influence of the operational
Impact performance optimization for hydraulic rock
In response to the issues of overheating of the shell and insufficient impact energy of the hydraulic rock drill, this paper focuses on the hydraulic rock drill
Drilling Parameters Optimization | SpringerLink
Relationships between drilling parameters of weight on bit, rotary speed, tooth and bearing wear, hydraulic power, and rate of penetration (ROP) as well as drilling bit wear are
Dynamic simulation and test research of impact performance of
Hydraulic rock drill is a new type drilling equipment with high efficiency, low energy consumption and low pollution. It is widely used in metallurgical mine, roadway drivage, and
Dynamic simulation and test research of impact performance of hydraulic
It improves the drilling efficiency greatly, and promotes the development of productivity. In the recent three decades, there are many developments of hydraulic rock drill
Percussion characteristic analysis for hydraulic rock
Considering the insufficiency of numerical study on the percussion characteristic of hydraulic rock drill, which restricts the improvement of
Research on Impact Performance of Hydraulic Rock Drill with
As a technological innovation of high-power hydraulic rock drill, double damping system has a very important effect on impact performance. The double damping system is a floating
Analysis and optimization of the working parameters of the impact
Download Citation | Analysis and optimization of the working parameters of the impact mechanism of hydraulic rock drill based on a numerical simulation | An impact system
Percussion characteristic analysis for hydraulic rock drill with
As the core component of rock drill, the performance of percussion system decides the whole level of rock drill to a great extent.8,9However, the structure of per-cussion system
Theoretical and Experimental Study of the Effects of Impact Drilling
Using a self-designed hydraulic impact drilling test-bed and rock core drill, six groups of cylindrical granite specimens (93 mm dia. × 200 mm) containing central axial holes formed either by
Design on Key Parameters of Double Damper System for Hydraulic Rock Drill
A high frequency hydraulic rock drill drifter with sleeve valve is developed to use on arm of excavator. In order to ensure optimal working parameters of impact system for the
Structure of rock-drill drifter | Download Scientific Diagram
Download scientific diagram | Structure of rock-drill drifter from publication: A percussion performance analysis for rock-drill drifter through simulation modeling and experimental
Experimental study on impact coupling characteristics of high
Yang et al. 8, 9 constructed a numerical model of hydraulic rock drill impact system by Amesim for front constant-pressurized chamber hydraulic rock drills, then optimized the design of key
Research on the Matching of Impact Performance and Collision
Yang [8] built a numerical model of the hydraulic rock drill impact system by using a bond graph method and optimised the key structural parameters. Hashiba [9] simulated the impact
Impact performance optimization for hydraulic rock drill based on
In response to the issues of overheating of the shell and insufficient impact energy of the hydraulic rock drill, this paper focuses on the hydraulic rock drill with alternating front
Influence of Piston Mass and Working Pressure on the Impact
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,
Structural optimization and performance improvement of rock drill
The drill tail of a rock drill meets high-frequency fretting in both the rotational and axial axes. The pure water seal is prone to damage and failure owing to its difficult working
What is Hydraulic rock drilling and how does it work?
Discover the mechanics of hydraulic percussive rock drilling and how it boosts efficiency in excavation and construction across industries.
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