Rock drilling machine, rotating sleeve and method for lubrication
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United States of America Patent
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Dec 11, 2014
app pub date -
Jun 6, 2014
filing date -
Jun 7, 2013
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Abstract
The disclosure relates to a rock drilling machine, a rotating sleeve and a method of lubricating a shank of the rock drilling machine. The rock drilling machine includes a rotatable shank for connecting a drilling tool. The shank is rotated by a rotating sleeve arranged around the shank. Gears are arranged between the shank and the rotating sleeve. The rock drilling machine is provided with a lubricating system for lubricating the gears and also bearings of the rotating sleeve.
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