发明名称 GRIPORGAN VID EN PNEUMATISK SLAGANORDNING FOR NEDSENKNING AV STANGFORMADE ELEMENT I MARK OCH UTDRAGNING AV DESAMMA UR MARKEN
摘要 A rod-clamping device comprises an impact load transmission assembly which includes a housing having a through axial cavity and a system of jamming elements, a rocoil force take up assembly which includes a housing having a through axial cavity, a collar sleeve, and a system of jamming elements, and a resilient element adapted to urge the jamming elements in a direction counter to the forces being exerted, the impact load transmission assembly having a sleeve member, each system of the jamming elements in the two assemblies being forced to the housing and the rod being driven by a separate resilient element.
申请公布号 SE8301102(L) 申请公布日期 1983.09.02
申请号 SE19830001102 申请日期 1983.02.28
申请人 INST GORNOGO DELA SIBIRSKOGO O 发明人 BOGINSKY V P;SMOLYANITSKY B N;SYRYAMIN J N;KOSTYLEV A D;TERSKOV A D
分类号 E02D9/02;E02D7/10;E02D11/00;E02D13/10;(IPC1-7):E21B11/00 主分类号 E02D9/02
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