Journal of Mining Science

, Volume 52, Issue 5, pp 913–918 | Cite as

Experimental estimate of power variation range of pneumatic hammer with mechanical locking of elastic valve

Science of Mining Machines


Under discussion is the experimental estimate of an actual power variation range of pneumatic hammer with a ring-type elastic valve arranged in exhaust unit of back-drive cell in order to lock mechanically this cell until exhaust stroke at various values of the hammer travel. The variation ranges of the valve channel cross-section are found to ensure sustained operation of the pneumatic hammer and the minimized air flow rate irrespective of the hammer weight and position (vertical or horizontal) and the ratio of the hammer power-stroke to the hammer power-stroke cell diameter.


Pneumatic hammer elastic valve air flow rate blow frequency valve channel hammer stroke 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Smolyanitsky, B.N., Repin, A.A., Danilov, B.B., et al., Enhancing Efficiency and Endurance of Pulse-Generating Machines for Long Drilling in Rocks, Integr. Proekty SORAN, 2013, issue 43.Google Scholar
  2. 2.
    Smolyanitsky, B.N,., Tishchenko, I.V., Chervov, V.V. et al., Sources for Productivity Gain in Vibro-Impact Driving of Steel Elements in Soil in Special Construction Technologies, J. Min. Sci., 2008, vol. 44, no. 5, pp. 490–496.CrossRefGoogle Scholar
  3. 3.
    Chervov, V.V., Tishchenko, I.V., and Smolyanitsky, B.N, Effect of Blow Frequency and Additional Static Force on the Vibro-Percussion Pipe Penetration Rate in Soil, J. Min. Sci., 2011, vol. 47, no. 1, pp. 85–92.CrossRefGoogle Scholar
  4. 4.
    Smolyanitsky, B.N. and Chervov, V.V, Enhancement of Energy Carrier Performance in Air Hammers in Underground Construction, J. Min. Sci., 2014, vol. 50, no. 5, pp. 918–928.CrossRefGoogle Scholar
  5. 5.
    Repin, A.A., Smolyanitsky, B.N., Alekseev, S.E., Popelyukh, A.I., Timonin, V.V., and Karpov, V.N, Downhole High-Pressure Air Hammers for Open Pit Mining, J. Min. Sci., 2014, vol. 50, no. 5, pp. 929–937.CrossRefGoogle Scholar
  6. 6.
    Sudnishnikov, B.V., Esin, N.N., and Tupitsyn, K.K., Issledovanie i konstruirovanie pnevmaticheskikh mashin udarnogo deistviya (Analysis and Design of Pneumatic Percussive Machines), Novosibirsk: Nauka, 1985.Google Scholar
  7. 7.
    Chervov, V.V, Control of Air Feed to Back-Strike Chamber of the Pneumatic Impact Device, J. Min. Sci., 2003, vol. 39, no. 1, pp. 64–71.CrossRefGoogle Scholar
  8. 8.
    Boshnyak, L.L. and Byzov, L.N., Takhometricheskie raskhodometry (Tachiometric Flow Meters), Leningrad: Mashinostroenie, 1968.Google Scholar
  9. 9.
    Kremlevsky, P.P. Raskhodometry i schetchiki kolichestva veshchestva (Flow Meters and Counters of Amount of Substance), Saint-Petersburg: Politekhnika, 2002.Google Scholar
  10. 10.
    Chervov, V.V., Tishchenko, I.V., and Chervov, A.V, Influence of the Air Distribution Elements in the Pneumatic Hammer with an Elastic Valve on the Energy Carrier Rate, J. Min. Sci., 2009, vol. 45, no. 1, pp. 32–37.CrossRefGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2016

Authors and Affiliations

  1. 1.Chinakal Institute of Mining, Siberian BranchRussian Academy of SciencesNovosibirskRussia

Personalised recommendations