Undercarriage assembly for a belted work machine
First Claim
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1. An undercarriage assembly for a belted work machine comprising:
- a roller frame;
a pair of wheels held in spaced-apart relation by the roller frame;
an endless track belt entrained about the pair of wheels;
a bogie arm having a sleeve defining a bore and being pivotally connected to the roller frame at a pivot axis, said bogie arm including a roller arranged and configured for supporting the track belt between the wheels;
a pivot pin being secured to said roller frame about the pivot axis and extending through the bore of the bogie arm; and
an elastomeric bearing being bonded to the pivot pin, and frictionally engaging an interior surface of the sleeve of the bogie arm.
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Accused Products
Abstract
The undercarriage assembly includes a roller frame and a pair of wheels held in spaced apart relation by the roller frame. An endless track belt is entrained about the pair of wheels. A bogie arm is pivotally connected to the roller frame at a pivot axis. The bogie arm includes a roller arranged and configured for supporting the track belt between the wheels. The undercarriage assembly also includes an elastomeric bearing positioned about the pivot axis of the bogie arm for reducing shock loads applied to the bogie arm. The elastomeric bearing can be arranged and configured to bias the bogie arm toward the track belt via torsion.
75 Citations
12 Claims
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1. An undercarriage assembly for a belted work machine comprising:
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a roller frame; a pair of wheels held in spaced-apart relation by the roller frame; an endless track belt entrained about the pair of wheels; a bogie arm having a sleeve defining a bore and being pivotally connected to the roller frame at a pivot axis, said bogie arm including a roller arranged and configured for supporting the track belt between the wheels; a pivot pin being secured to said roller frame about the pivot axis and extending through the bore of the bogie arm; and an elastomeric bearing being bonded to the pivot pin, and frictionally engaging an interior surface of the sleeve of the bogie arm. - View Dependent Claims (2, 3, 4, 5)
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6. An undercarriage assembly for a belted work machine comprising:
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a roller frame; a pair of wheels held in spaced-apart relation by the roller frame; an endless track belt entrained about the pair of wheels; a leading bogie arm pivotally connected to the roller frame at a leading pivot axis, the leading bogie arm including a pair of rollers arranged and configured for supporting the track belt between the wheels; a trailing bogie arm pivotally connected to the roller frame at a trailing pivot axis, the trailing bogie arm including a single roller arranged and configured for supporting the track belt between the wheels, the single roller being arranged and configured to trail the trailing pivot axis; and a first elastomeric bearing positioned about the trailing pivot axis, said first elastomeric bearing providing a torsilastic spring configured to bias the bogie arm toward the track belt to prevent untracking of the track belt. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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Specification