Leg assembly for construction machine
AssigneeGOMACO Corporation
InventorJason D Wulf
Life of this patent
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Abstract
A leg assembly includes a guide tube, a power drive coupled to a flange of the guide tube, a steering ring coupled to the power drive, a tube weldment coupled to the steering ring, and a hydraulic actuator coupled within the guide tube and within the tube weldment. The power drive includes a slew drive or a hydraulic cylinder steering assembly. The tube weldment is translated through the power drive by the actuator. The steering ring includes one or more pistons by which relative rotational movements may be imparted to the tube weldment by a socketing action. The steering ring is rotated by the power drive. Thus, the guide tube may be rotated relative to the tube weldment.
Claims20
A leg assembly comprising:
- a guide tube including a lower flange;
- a power drive coupled to the lower flange;
- a steering ring coupled to the power drive, the steering ring including a key;
- a tube weldment including:
- a keyway, wherein the keyway receives the key, wherein the power drive is configured to rotate the tube weldment relative to the guide tube by rotating the steering ring which translates such rotation to the tube weldment by the key and the keyway;
- and
- a yoke, wherein the yoke is disposed outside the guide tube;
- and
- a hydraulic actuator including a first end and a second end, the first end of the hydraulic actuator coupled to the guide tube, the second end of the hydraulic actuator coupled to the tube weldment, wherein the hydraulic actuator is configured to actuate to linearly translate the tube weldment relative to the guide tube, wherein the key is configured to travel along the keyway when the tube weldment linearly translates relative to the guide tube.
A paving machine comprising:
- a frame including a slip-form for moving in a first direction of travel for forming a material into shape;
- a leg assembly supporting at least a portion of the frame, the leg assembly comprising:
- a guide tube including a lower flange;
- a power drive coupled to the lower flange;
- a steering ring coupled to the power drive, the steering ring including a key;
- a tube weldment including:
- a keyway, wherein the keyway receives the key, wherein the power drive is configured to rotate the tube weldment relative to the guide tube by rotating the steering ring which translates such rotation to the tube weldment by the key and the keyway;
- and
- a yoke, wherein the yoke is disposed outside the guide tube;
- and
- a hydraulic actuator including a first end and a second end, the first end of the hydraulic actuator coupled to the guide tube, the second end of the hydraulic actuator coupled to the tube weldment, wherein the hydraulic actuator is configured to actuate to linearly translate the tube weldment relative to the guide tube, wherein the key is configured to travel along the keyway when the tube weldment linearly translates relative to the guide tube.
Dependencies are inferred from the claim text.