Abstract: The research on the driving principle and economization of
energy of electro-hydraulic hammer is discussed. By means of the
balance chart of energy, the method and formulas to calculate
every level efficiency and the total efficiency of steam drived
hammer are formed. With the aid of actual data of plants, the
actual efficiency of steam drived hammer is got. The working
principle and the driving system of electro-hydraulic hammer are
introduced. The procedure of energy transfer of this hammer is
analyzed.The utilization ratio of energy of this type of hammer
is got. It is shown that the efficiency of elector-hydraulic
hammer is 7 times as much as that of steam drived hammer.
Key words: Steam
hammer Electro-hydraulic hammer Economization
Manuscript received on
March 26, 1999; revised manuscript September 15, 1999
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