WORK MACHINE AND AUTOMATIC CONTROL METHOD FOR BLADE OF WORK MACHINE

摘要

A work machine includes a vehicle body, a blade supported by the vehicle body, a pair of first hydraulic air of second hydraulic cylinders, a pair of lift stroke sensors and a control unit. The first hydraulic cylinders are configured to lower and raise the blade. The second hydraulic cylinders are configured to tilt the blade forward and backward and left and right. The lift stroke sensors are configured to detect stroke amounts from the pair of first hydraulic cylinders, respectively. The control unit is configured to start actuating the pair of second hydraulic cylinders when the stroke amounts of the pair of first hydraulic cylinders match. The control unit is configured to stop actuating the pair of second hydraulic cylinders based on a magnitude relation between a prescribed threshold and a difference in the stroke amounts of the pair of first hydraulic cylinders.

主权项

1. A work machine comprising:
a vehicle body; a blade supported by the vehicle body; a pair of first hydraulic cylinders configured to lower and raise the blade; a pair of second hydraulic cylinders configured to tilt the blade forward and backward and left and right; a pair of lift stroke sensors configured to detect stroke amounts from the pair of first hydraulic cylinders, respectively; and a control unit configured to start actuating the pair of second hydraulic cylinders when the stroke amounts of the pair of first hydraulic cylinders match, the control unit being configured to stop actuating the pair of second hydraulic cylinders based on a magnitude relation between a prescribed threshold and a difference in the stroke amounts of the pair of first hydraulic cylinders.