| 摘要 |
Rock drilling device including a rock drilling machine ( 1 ) which is movable forwards and backwards along a feed beam, ( 2 wherein the rock drilling machine ( 1 ) is pivotal around an axis ( 3 ) which is arranged along the rock drilling machine ( 1 ), and a channel ( 4 ) for supply of lubricant to points of lubrication in the rock drilling machine ( 1 ), wherein the channel ( 4 ) includes a sleeve ( 5 ) which is provided with a number of generally radial holes ( 6 ) that are distributed along the circumference of the sleeve ( 5 ), that a groove ( 7 ) is arranged around the sleeve ( 5 ) in connection with the radial holes ( 6 ), and that the radial holes ( 6 ) are dimensioned such that a part of the lubricant leaves the channel ( 4 ) through the radial holes ( 6 ).
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