Scraper, rock drilling unit and method

The invention relates to a scraper blade, a rock drilling unit and a method. The invention provides a scraper blade, a rock drilling unit and a method of cleaning a feed beam of a rock drilling unit. The scraper (11) comprises a scraper element (12) and a bracket (13) mountable to the feed beam (3). The bracket provides floating support for the scraper element. There is at least one force element (14) for generating a force to move the blade element relative to the carrier. 本发明涉及刮板、岩石钻凿单元和方法。刮板、岩石钻凿单元和清洁岩石钻凿单元的馈送梁的方法。刮板(11)包括刮板元件(12)和能够安装到馈送梁(3)的支架(13)。所述支架为所述刮板元件提供浮动支撑。存在至少一个力元件(14)，用于产生相对于所述支架移动所述刮板元件的力。