发明名称 IMPACT DEVICE
摘要 FIELD: technological processes. ^ SUBSTANCE: invention relates to method for control of impact device operation, which is actuated by pressurised fluid, and to impact device actuated by pressurised fluid. Impact device comprises facilities for supply of pressurised fluid into impact device and discharge from it, working chamber and transfer piston installed in working chamber. Transfer piston has surface that transmits energy and is inverted to tool with provision of the possibility of its contact with tool surface that perceives energy. At the same time shape of voltage wave is affected by means of clearance setting between surface of transfer piston that perceives energy and specified surface of tool that perceives energy. ^ EFFECT: simplified adjustment of voltage wave characteristics transferred to tool, and also increased frequency of impacts. ^ 28 cl, 7 dwg
申请公布号 RU2386527(C2) 申请公布日期 2010.04.20
申请号 RU20070139321 申请日期 2006.03.22
申请人 SANDVIK MAJNING EHND KONSTRAKSHN OJ 发明人 KESKINIVA MARKKU;MJAKI JORMA;EHSKO MAURI;AKHOLA EHRKKI
分类号 B25D9/12;B25D9/26;E21B1/32 主分类号 B25D9/12
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