F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
F15B 15/02 (2006.01) B66C 23/84 (2006.01) B66C 23/86 (2006.01) E02F 3/38 (2006.01) F15B 11/20 (2006.01) F15B 13/06 (2006.01) F15B 15/04 (2006.01)
Patent
CA 2344588
The present invention relates to a turning device for providing a rotational movement in a work machine so as to turn the work machine (8) quickly and smoothly. The turning device comprises a frame (1) in which is arranged at least one control rim (4) turning about the axis of rotation (6). To the control rim is arranged a swiveling axle (5) that projects substantially perpendicularly from the control rim, two pressure-medium-operated actuators (9, 10) at an angle with respect to one another are in turn arranged in the swiveling axle for turning the control rim about the axis of rotation. The actuators are double- acting actuators, whereby independent shuttle valves (28, 29) in the pressure line pairs (24, 25, 26, 27) applied to the actuator are arranged to regulate the pressure medium flow controlling the operation of the actuators.
Heikkila Risto
Shapiro Cohen
LandOfFree
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