Abstract
The relevance of the research is due to the necessity to create pneumatic rock drills with low air consumption. The article analyzes the reasons for low efficiency of percussive machines. The authors state that applying a single distribution body in the percussive mechanism does not allow carrying out a low-energy operating cycle of the mechanism. Using the studied device as an example, it is substantiated that applying a compression valve with two distribution bodies separately operating the working chambers makes it possible to significantly reduce the airflow. The authors describe the construction of a core drill percussive mechanism and the operation of a compression valve. It is shown that in the new percussive mechanism working chambers are cut off the circuit by the time when exhaust windows are opened by the piston and air is not supplied into the cylinder up to 20% of the cycle time. The air flow rate of the new mechanism was 3.8 m3/min. In comparison with the drill PK-75, the overall noise level of the new machine is lower by 8-10 dB, while the percussive mechanism efficiency is 2.3 times higher.
| Original language | English |
|---|---|
| Title of host publication | IOP Conference Series: Earth and Environmental Science |
| Publisher | Institute of Physics Publishing |
| Volume | 27 |
| Edition | 1 |
| DOIs | |
| Publication status | Published - 10 Nov 2015 |
| Event | 19th International Scientific Symposium on Problems of Geology and Subsurface Development, PGON 2014 - Tomsk, Russian Federation Duration: 6 Apr 2015 → 10 Apr 2015 |
Conference
| Conference | 19th International Scientific Symposium on Problems of Geology and Subsurface Development, PGON 2014 |
|---|---|
| Country | Russian Federation |
| City | Tomsk |
| Period | 6.4.15 → 10.4.15 |
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ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Environmental Science(all)
Cite this
Energy-saving compression valve of the rock drill. / Glazov, A. N.; Efanov, A. A.; Aikina, Tatiana Yurievna.
IOP Conference Series: Earth and Environmental Science. Vol. 27 1. ed. Institute of Physics Publishing, 2015. 012055.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Energy-saving compression valve of the rock drill
AU - Glazov, A. N.
AU - Efanov, A. A.
AU - Aikina, Tatiana Yurievna
PY - 2015/11/10
Y1 - 2015/11/10
N2 - The relevance of the research is due to the necessity to create pneumatic rock drills with low air consumption. The article analyzes the reasons for low efficiency of percussive machines. The authors state that applying a single distribution body in the percussive mechanism does not allow carrying out a low-energy operating cycle of the mechanism. Using the studied device as an example, it is substantiated that applying a compression valve with two distribution bodies separately operating the working chambers makes it possible to significantly reduce the airflow. The authors describe the construction of a core drill percussive mechanism and the operation of a compression valve. It is shown that in the new percussive mechanism working chambers are cut off the circuit by the time when exhaust windows are opened by the piston and air is not supplied into the cylinder up to 20% of the cycle time. The air flow rate of the new mechanism was 3.8 m3/min. In comparison with the drill PK-75, the overall noise level of the new machine is lower by 8-10 dB, while the percussive mechanism efficiency is 2.3 times higher.
AB - The relevance of the research is due to the necessity to create pneumatic rock drills with low air consumption. The article analyzes the reasons for low efficiency of percussive machines. The authors state that applying a single distribution body in the percussive mechanism does not allow carrying out a low-energy operating cycle of the mechanism. Using the studied device as an example, it is substantiated that applying a compression valve with two distribution bodies separately operating the working chambers makes it possible to significantly reduce the airflow. The authors describe the construction of a core drill percussive mechanism and the operation of a compression valve. It is shown that in the new percussive mechanism working chambers are cut off the circuit by the time when exhaust windows are opened by the piston and air is not supplied into the cylinder up to 20% of the cycle time. The air flow rate of the new mechanism was 3.8 m3/min. In comparison with the drill PK-75, the overall noise level of the new machine is lower by 8-10 dB, while the percussive mechanism efficiency is 2.3 times higher.
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U2 - 10.1088/1755-1315/27/1/012055
DO - 10.1088/1755-1315/27/1/012055
M3 - Conference contribution
VL - 27
BT - IOP Conference Series: Earth and Environmental Science
PB - Institute of Physics Publishing
ER -