专利检索 ap:("TRACTO-TECHNIK GmbH & Co. KG") AND inv:"Raimund Grobbel" 第 1 页

1.

发明授权
Drive of an earth drilling device, earth drilling device, and a method for driving an earth drilling device 有权

公开(公告)号：US10053931B2

公开(公告)日：2018-08-21

申请号：US14957015

申请日：2015-12-02

申请人： TRACTO-TECHNIK GmbH & Co. KG

发明人： Sebastian Fischer , Stefan Hermes , Raimund Grobbel

IPC分类号： E21B19/083 , E21B6/02 , E21B7/04

CPC分类号： E21B19/083 , E21B6/02 , E21B7/046

摘要： The invention relates to a drive of a slide of an earth drilling device having a rotary drive and a pinion that is driven by the rotary drive and can be engaged with a rack, wherein the rotary drive is engaged with another pinion which can be engaged with the rack.