| 摘要 |
A rinsing device in a drill device for rock drilling, comprises a cylindr ical neck adaptor which comprises a mantle surface, two end surfaces, a cent ral axial passage which opens at one end surface, and a radial connection be tween the central axial passage and an opening in the mantle surface. The ri nsing device also comprises a rinse head with a axially-extending hole. The neck adaptor is slidably arranged in said hole. The rinse head surrounds a p art of the mantle surface of the neck adaptor and provides a first space whi ch extends around the mantle surface of the neck adaptor in the region of th e opening in the mantle surface of the neck adaptor. The first space is conn ected to the outside of the rinse head via a feed channel. The rinsing devic e comprises at least one primary sealing element arranged in the axial direc tion on each side of the first space in the rinse head to provide a seal bet ween the neck adaptor and the first space. The rinsing device also comprises at least one second space which extends about the mantle surface of the nec k adaptor, each of which second spaces borders that side of each primary sea ling element which faces away from the first space. The rinsing device compr ises means for supplying lubricant to the second space.
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