Essays about: "hydraulic drill"

Showing result 6 - 10 of 11 essays containing the words hydraulic drill.

1. 6. Evaluation of a Programmable Hydraulic Valve for Drill Rig Applications

   University essay from Linköpings universitet/Fluida och mekatroniska system

   Author : Jonathan de Brun Mangs; Mikael Tillquist; [2018]
   Keywords : Hydraulic valve; CAN; Drill rig; Rock drill; Blast hole drilling; Time delays; Ziegler-Nichols; PI-control;

   Abstract : The increase of intelligent systems can be seen in every industry. Integrated sensors and processors are used with internal control systems to create better performance for mobile hydraulic applications. The report describes how an evaluation was made to see if the productivity of a drill rig could be increased. READ MORE

3. 7. Experimental Procedures for Operational Modal Analysis of a Power Pack on a Drill Rig

   University essay from Linköpings universitet/Mekanik och hållfasthetslära

   Author : Oscar Nilsson; [2017]
   Keywords : Operational modal analysis; OMA; engine sweep; modal identication; harmonic scaling;

   Abstract : All structures have modal properties such as natural frequencies and damping. In engineeringit is often of interest to estimate these modal properties for certain structures, to be used whenmodelling for example fatigue. This is done by computing them from finite element models, by using experimental measurements or both. READ MORE

4. 8. Decision analysis : determining the most appropriate drilling method for production drilling in underground mining

   University essay from Högskolan i Gävle/Avdelningen för Industriell utveckling, IT och Samhällsbyggnad

   Author : Fredrik Gransell; [2016]
   Keywords : ;

   Abstract : The mining industry contains many factors with a high degree of uncertainty. Therefore, there is a need for decision analysis. The production drill process is an initial process in underground mining, thus it is important that the most appropriate drilling method is used for specific mining operations. READ MORE

5. 9. Development of new rotation concept for rock drills

   University essay from KTH/Maskinkonstruktion (Inst.)

   Author : Akepati Bhaskar Reddy; [2015]
   Keywords : hydraulic motor; rock drill; rotation; hydraulisk motor; borrmaskin; vridning;

   Abstract : In blast hole drilling, it is desirable to be able to drill as close as possible to the edge of the tunnel. The minimum distance from the edge is defined by the radial size of the rockdrill. Most of the rock drills used today have a rotation motor that rotates an axel parallel to the shank, which further rotates the shank through a gear set. READ MORE

6. 10. Design and Modeling of a Piston Accumulator for a Rock Drill and its Fatigue Strength

   University essay from Institutionen för ekonomisk och industriell utveckling; Tekniska högskolan

   Author : Nadeem Ul Haq; [2010]
   Keywords : Rock Drill; Piston Accumulator; Fatigue;

   Abstract : This Master Thesis has been performed at Atlas Copco Rock Drills AB, Örebro and at Linköping University, Sweden from February 2010 through August 2010.The project deals with performance improvement of hydraulic rock drill machine manufactured by Atlas Copco Rock Drills. READ MORE