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US 11,679,826 B2Granted
Unitary link and track chain assembly of a work vehicle
AssigneeDeere & Company
InventorPatrick J. Mulligan
Life of this patent
Estimating the term…
Abstract
In accordance with the present disclosure, a track chain assembly for a work vehicle may comprise of a link set, a unitary link, and a bushing assembly. The link set may include a first link and a second link. The unitary link may include a single link. The bushing assembly may couple the link set and the unitary link for relative rotation between the link set and the unitary link.
Claims16
A track chain assembly for a work vehicle, the track chain assembly comprising:
- a link set and a unitary link, the link set including a first link and a second link, the unitary link including a single link;
- and
- a bushing assembly coupling the link set and the unitary link for relative rotation between the link set and the unitary link, wherein the bushing assembly comprises
- a pin defining a longitudinal axis, and having a lubricant reservoir, the pin including a first and a second opposing ends;
- a left inner collar coupled to a left portion of the unitary link, a right inner collar coupled to a right portion of the unitary link, wherein the left inner collar and the right inner collar include a first channel for rotatably accommodating the pin, wherein a cross-sectional diameter of the right inner collar is greater than a cross-sectional diameter of the left inner collar;
- and
- a left outer collar coupled to the first link of the link set, a right outer collar coupled to the second link of the link set, wherein the left outer collar and the right outer collar include a second channel for immovably accommodating the pin.
4 more elements
A track chain assembly for a work vehicle, the track chain assembly comprising:
- a link set and a unitary link, the link set including a first link and a second link, the unitary link including a single link;
- and
- a bushing assembly coupling the link set and the unitary link for relative rotation between the link set and the unitary link, the bushing assembly comprising:
- a pin defining a longitudinal axis, and having a lubricant reservoir, the pin including a first and a second opposing ends;
- a left inner collar coupled to a left portion of the unitary link, a right inner collar coupled to a right portion of the unitary link, wherein the left inner collar and the right inner collar include a first channel for rotatably accommodating the pin;
- and
- a left outer collar coupled to the first link of the link set, a right outer collar coupled to the second link of the link set, wherein the left outer collar and the right outer collar include a second channel for immovably accommodating the pin;
- wherein a cross-sectional diameter of a through-hole of the right portion of the unitary link is greater than a cross-sectional diameter of a through-hole of the left portion of the unitary link.
5 more elements
A work vehicle comprising:
- a prime mover;
- a frame supporting the prime mover;
- a sprocket coupled to the frame;
- a plurality of track chain assemblies coupled to the sprocket and moved by the prime mover;
- at least one of the track chain assembly comprising:
- a link set and a unitary link, the link set including a first link and a second link, the unitary link including a single link;
- and
- a bushing assembly coupling the link set and the unitary link for relative rotation between the link set and the unitary link, wherein the bushing assembly comprises:
- a pin defining a longitudinal axis, and having a lubricant reservoir, the pin including a first and second opposing ends;
- a left inner collar coupled to the left portion of the unitary link, a right inner collar coupled to the right portion of the unitary link, wherein the left inner collar and the right inner collar include a first channel for rotatably accommodating the pin;
- a left outer collar coupled to the first link of the link set, a right outer collar coupled to the second link of the link set, wherein the left outer collar and the right outer collar include a second channel for immovably accommodating the pin,
- wherein a cross-sectional diameter of a through-hole of the right portion of the unitary link is greater than a cross-sectional diameter of a through-hole of the left portion of the unitary link.
9 more elements
Dependencies are inferred from the claim text.