EP 0187944 B1 19891102 - EARTH-WORKING MACHINE
Title (en)
EARTH-WORKING MACHINE
Publication
Application
Priority
- EP 85115473 A 19830602
- JP 1337683 A 19830128
- JP 12846882 A 19820722
- JP 16297182 A 19820918
- JP 19212082 A 19821101
Abstract (en)
[origin: EP0187944A1] An earth-working machine such as an excavator includes a mobile chassis (10) having a support base (13) on which an internal gear (33) is fixedly mounted. A slider ring (35) is mounted on the underside of a turntable (14) with a hydraulic motor (18) mounted thereon and has a drive pinion (37) held in mesh with the internal gear (33). A carriage (20) supporting an excavating mechanism (47) has an internal gear (45) fixed to the underside thereof and is rotatably mounted on an annular holder (43; 73) fixed to the turntable (14). An intermediate shaft (56) is rotatably journalled in a bearing (39, 40) and pinion (46) fixed thereto and held in mesh with the internal gear (33, 45) on the carriage (20). A motor (50) mounted on the turntable (14) is operatively connected to the intermediate shaft (56) through shaft (15), sprockets (53, 54) on shafts (55, 56) respectively and a connecting drive chain (52). The carriage is rotatable in the contrary sense to the turntable by the second hydraulic motor (50) independently of the turntable.
IPC 1-7
IPC 8 full level
E02F 3/38 (2006.01); E02F 9/12 (2006.01); E02F 3/42 (2006.01)
CPC (source: EP)
E02F 3/32 (2013.01); E02F 3/384 (2013.01); E02F 9/121 (2013.01)
Designated contracting state (EPC)
CH DE FR GB IT LI SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 85115473 A 19830602