Patent ID: 11970835
Assignee: JIANGSU XCMG CONSTRUCTION MACHINERY RESEARCH INSTITUTE LTD.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 4:
5. The grader according to claim 4, wherein the controller is configured to cause the actuator to make an adjustment according to a sequence of three groups of priorities when the actual slope angle is inconsistent with the preset target slope angle, and shift to a next group of priority to make an adjustment when actions in a group of priority reach a limit position but have not been adjusted to the preset target slope angle;
wherein the three groups of priorities comprise: a first priority, which comprises at least one action of the left linear drive member and the right linear drive member; a second priority, which comprises an action of the diagonal linear drive member; and a third priority, which comprises an action of the rotation drive member to drive rotation of the rotary ring.