Deere & Company

Prashant Shinde

Steven R Fliearman

Jackson Baca

Gordon Edward Miller

Galen R Love

Isaiah Janzen

A tandem wheel assembly or kit has a housing that includes a central chain box, a first wheel end casing, and a second wheel end casing. The central chain box has an internal volume extending between a first box end and a second box end, a unitary pivot portion having a box opening disposed about a pivot axis, a first box flange with a first box flange face and a second box flange with a second box flange face. The first wheel end casing has a first wheel end flange with a first wheel end flange face mateable with the first box flange face, a first wheel end opening, and defines a first length. The second wheel end casing has a second wheel end flange with a second wheel end flange face mateable with the second box flange face, a second wheel end opening, and defines a second length.

Tandem wheel assembly and tandem wheel kit

A tandem wheel assembly for a work vehicle includes a tandem wheel housing, a center drive member rotatably disposed within the housing, first and second wheel end assemblies, a coupler between each wheel end drive member and the center drive member, and a brake assembly. Each wheel end assembly includes an input shaft, a wheel end drive member mounted thereon, a wheel end gear train coupled to the input shaft, an output shaft coupled to the wheel end gear train, and a wheel end hub coupled to the output shaft for supporting one of the wheels. The brake assembly is coupled to the tandem wheel housing and to the input shaft or the output shaft of at least one of the first wheel end assembly or the second wheel end assembly and reduces the amount of backlash.

Tandem wheel assembly with wheel end brake assembly

A tandem wheel assembly includes a tandem wheel housing having a center opening extending along a pivot axis, and wheel end openings extending along associated wheel axes. A pivot cage is configured to fixedly mount to a chassis of a vehicle and is disposed about the pivot axis at the center opening. A center sprocket is disposed within and rotatable with respect to the pivot cage. A wheel end assembly is disposed at each wheel end opening and has a wheel end sprocket, a wheel end gear train, and a wheel end hub. Each wheel end gear train is coupled for rotation by the wheel end sprocket and rotates the wheel end hub about the wheel end axis. A pair of reaction bars are pivotally coupled to the pivot cage at one end and to a component of the wheel end gear train at the other end.

Tandem wheel assembly with reaction downforce center pivot

A tandem wheel assembly for a work vehicle includes a tandem wheel housing having a center opening disposed about a pivot axis and first and second wheel end openings disposed about associated first and second wheel axes that are substantially parallel with the pivot axis. A center sprocket within the tandem wheel housing is rotatable about the pivot axis. First and second wheel end assemblies include first and second wheel end shafts, sprockets and housings. The first and second wheel end sprockets are mounted to the associated shafts and are aligned to engage the center sprocket with at least one chain which transfers rotation of the center sprocket about the pivot axis to rotate the first and second wheel end sprockets about the associated first and second wheel axes. The first and second wheel end housings support the first and second wheel end shafts for relative rotation about the associated first and second wheel axes. The first wheel end housing is adjustably mounted to the tandem wheel housing to vary a first distance between the pivot axis and the first wheel axis.

Tandem wheel assembly with wheel end adjustment

A tandem wheel assembly for a work vehicle includes a tandem wheel housing having a center opening extending along a pivot axis and wheel end openings extending along associated wheel end axes. The tandem wheel housing is pivotally mounted to a chassis of the work vehicle about the pivot axis. A center sprocket is rotatably disposed within the tandem wheel housing. Wheel end assemblies are disposed at the wheel end openings and each includes a wheel end sprocket, a wheel end gear train, and a wheel end hub. A pair of reaction bars are being pivotally coupled at first ends to the chassis and at second ends to a component of the respective wheel end assembly. A pivot dampening system is positioned, at least in part, axially between the tandem wheel housing and either the chassis or the component of at least one of the wheel end assemblies. The pivot dampening system is configured to dampen the pivoting of the tandem wheel housing tandem wheel housing relative to the chassis.

Tandem wheel assembly with pivot dampening system

A limited oil displacement system is positioned within a tandem housing of a tandem of a work vehicle. The tandem includes a tandem oil where a chain assembly is at least partially submerged. The limited oil displacement system may include one or more oil displacement unit used for displacing the tandem oil. The oil displacement unit has an upper portion and a lower portion coupled to and positioned under the upper portion. A volume of the upper portion is larger than a volume of the lower portion such that when the tandem of the work vehicle pivots about a lateral axis, the oil displacement unit displaces the tandem oil more than when the tandem of the work vehicle remains horizontally.

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Pune, India

Prashant Shinde