EP 3641984 A1 20200429 - GRINDING MACHINE WITH HYDRAULIC MOTORS.
Title (en)
GRINDING MACHINE WITH HYDRAULIC MOTORS.
Title (de)
SCHLEIFMASCHINE MIT HYDRAULISCHEN MOTOREN
Title (fr)
MACHINE DE MEULAGE AVEC MOTEURS HYDRAULIQUES
Publication
Application
Priority
- SE 1750796 A 20170621
- SE 1751410 A 20171115
- SE 2018050605 W 20180611
Abstract (en)
[origin: WO2018236268A1] The present disclosure relates to a grinding machine (9) for grinding rock drill bit buttons, the machine comprising a grinding arrangement with rotatable grinding spindle (25), a free end of which is configured to drive and to replaceably carry a grinding cup (5). The grinding spindle (25) is configured to rotate about a spindle axis (A) by a spindle motor (23), the grinding spindle further being configured to be rotated about a gyration axis (B) by a gyration motor (29), the gyration axis being inclined relative to the spindle axis. The spindle motor (23) and the gyration motor (23) may be hydraulic motors, which allows both those functions to be driven by for instance a main hydraulic circuit of a drilling rig.
IPC 8 full level
B24B 3/33 (2006.01); B24B 3/24 (2006.01); B24B 3/40 (2006.01); B24B 5/00 (2006.01); B24B 5/16 (2006.01); E21B 10/08 (2006.01)
CPC (source: EP SE)
B24B 3/24 (2013.01 - EP SE); B24B 3/33 (2013.01 - EP SE); B24B 3/343 (2013.01 - EP); B24B 3/40 (2013.01 - SE); B24B 5/00 (2013.01 - SE); B24B 27/0084 (2013.01 - EP); B24B 47/14 (2013.01 - EP); B24B 47/16 (2013.01 - EP); B24B 5/16 (2013.01 - SE); E21B 10/08 (2013.01 - SE)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2018236268 A1 20181227; CA 3065227 A1 20181227; EP 3641984 A1 20200429; EP 3641984 A4 20210407; SE 1750796 A1 20181222; SE 542627 C2 20200623
DOCDB simple family (application)
SE 2018050605 W 20180611; CA 3065227 A 20180611; EP 18819609 A 20180611; SE 1750796 A 20170621