SMALL-RESISTANCE HIGH-EFFICIENCY MINING DEVICE WITH MULTIPLE LAYERS OF PERCUSSION HEADS
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United States of America Patent
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Issued Date -
May 28, 2015
app pub date -
May 10, 2013
filing date -
May 12, 2012
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Abstract
The invention relates to the field of machinery, and in particular relates to a small-resistance and high-efficiency digging apparatus with multiple layers of impact heads, which is applicable to the digging field or the field of engineering machinery. The apparatus comprises an impact power box and impact heads, wherein the impact heads are arranged at one end or two ends of the impact power box, more than two impact heads are arranged at each end of the impact power box, and the more than two impact heads are arranged vertically and/or bilaterally to increase the digging height and/or digging width. The apparatus is reliable in performance, strong in manufacturability, simple to machine and manufacture and long in service life.
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