Patent ID: 11885221
Assignee: JOY GLOBAL SURFACE MINING INC
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 16:
17. A mining machine comprising:
a base having two drive tracks configured to rest on a ground surface and to move the mining machine along a first direction;
a carbody that extends between the two drive tracks, wherein the carbody includes a turntable, wherein the turntable is coupled to a frame, and defines an axis of rotation of the frame relative to the two drive tracks; and
a stabilizer appendage coupled to the carbody, wherein the stabilizer appendage extends forward from the carbody along the first direction and is configured to contact the ground surface and provide stabilizing support during a digging operation;
wherein the stabilizer appendage is spaced from the frame, such that a position of the stabilizer appendage is independent of a position of the frame;
wherein the stabilizer appendage includes two link arms and a support element that extends between the two link arms;
wherein the support element is configured to swivel about a bearing that is coupled to the two link arms;
wherein the axis of rotation is a first axis; and
wherein the support element is further configured to rotate on a second axis spaced forward of the drive tracks, wherein the second axis is a swivel axis.