Leg assembly for construction machine
AssigneeGOMACO Corporation
InventorJason D Wulf
Life of this patent
Estimating the term…
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 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 slew drive coupled to the lower flange of the guide tube;
- a steering ring coupled to the slew drive;
- a square tube weldment, wherein the slew drive is configured to rotate the square tube weldment relative to the guide tube by rotating the steering ring which translates such rotation to the tube weldment by a socketing action between the steering ring and the square tube weldment;
- 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 square tube weldment, wherein the hydraulic actuator is configured to actuate to linearly translate the square tube weldment relative to the guide tube;
- a crawler assembly coupled to the square tube weldment, the crawler assembly including a track drive for propelling the frame in the first direction;
- and
- a power supply connected to at least the track drive, the hydraulic actuator, and the slew drive for supplying power to the track drive, the hydraulic actuator, and the slew drive.
A leg assembly, comprising:
- a guide tube including a lower flange;
- a slew drive coupled to the lower flange of the guide tube;
- a steering ring coupled to the slew drive, the steering ring including a plurality of pistons and a plurality of wear pads;
- a square tube weldment, wherein the slew drive is configured to rotate the square tube weldment relative to the guide tube by rotating the steering ring which translates such rotation to the tube weldment by a socketing action between the piston and the square tube weldment, wherein the plurality of wear pads are configured to interface between the plurality of pistons and the square tube weldment;
- 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 plurality of pistons and the plurality of wear pads are configured to travel along the square tube weldment when the square tube weldment linearly translates relative to the guide tube.
Dependencies are inferred from the claim text.