| 摘要 |
PURPOSE:To enable high-accuracy control of rolling of a working machine, quickly responding to the variation of ground pressure, by controlling a working machine with a proportional pressure-reducing valve in such a manner as to decrease the ground pressure difference between a pair of the right and the left grounding members. CONSTITUTION:A working machine is vertically rolled in a plane perpendicular to the running direction of the machine by extending or contracting a pair of the right and the left rolling cylinders 31(R) and 31(L). The detected values of the right and the left ground pressure sensors 81(R) and 81(L) are compared and an electromagnetic proportional valve is operated to equalize the signals of both sensors. The machine can be controlled only with a hydraulic power to compensate the pressure in the cylinders with each other.
|
