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

  • V. V. Chervov
  • B. N. Smolyanitsky
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 


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Copyright information

© Pleiades Publishing, Ltd. 2016

Authors and Affiliations

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

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