Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
HYDRAULIC DRILL HAMMER, ARRANGEMENT COMPRISING HYDRAULIC DRILL HAMMER AND CARRIER DEVICE AND USE OF A HYDRAULIC DRILL HAMMER
Document Type and Number:
WIPO Patent Application WO/2014/166606
Kind Code:
A3
Abstract:
The invention relates to a hydraulic drill hammer (1) for the arrangement on a carrier device (2), comprising a hydraulic slewing gear (3), a hydraulic striking mechanism (4) and a hydraulic circle (5) having a fluid inlet (6) and at fluid outlet (7) and by means of which hydraulic circle a forward stroke (17) of the slewing gear (3) and a forward stroke (18) of the hydraulic striking mechanism (4) are switched parallel via a distributor (16). According to the invention, the distributor (16) is configured in order to feed a desired volumetric flow rate to the forward stroke (18) of the striking mechanism (4), if an inlet volumetric flow through the fluid inlet (6) exceeds the desired volumetric flow according to the provided normal operation, a difference volumetric flow to the forward stroke (17) of the hydraulic slewing gear, which difference volumetric flow results from the inlet volumetric flow, less the desired volumetric flow. The invention further relates to the arrangement consisting of the hydraulic drill hammer (1) and the carrier device (2) and to the use of the hydraulic drill hammer (1) having an excavator as a carrier device (2) for producing blast hole drillings and assembly holes.

Inventors:
SCHNELLE HOLGER (DE)
Application Number:
PCT/EP2014/000856
Publication Date:
April 23, 2015
Filing Date:
March 31, 2014
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
THYSSENKRUPP TIEFBAUTECHNIK GMBH (DE)
International Classes:
E21B6/00; B25D9/12; E21B44/00
Foreign References:
US4430926A1984-02-14
US6058632A2000-05-09
US4516467A1985-05-14
Attorney, Agent or Firm:
OSSMANN, Jens et al. (ThyssenKrupp Allee 1, Essen, DE)
Download PDF: