Compaction wheel assembly

A compaction wheel assembly comprising, in combination:

• a support structure;
• a laterally-extending shaft rotatable relative to the support structure;
• first, second and third compaction wheels spaced apart along the shaft and fixed to the shaft for rotation with the shaft;
• and
• a first bushing assembly between the first and second compaction wheels and a second bushing assembly between the second and third compaction wheels, wherein each of the first and second bushing assemblies comprises:
• first and second split bushings encircling the shaft and axially spaced-apart along the shaft to form a space therebetween, wherein each of the first and second split bushings has an upper half and a lower half;
• upper and lower bushing housings removably secured together with the first and second split bushings therebetween to clamp the first and second split bushings about the shaft;
• and
• three first shims located between the upper and lower bushing housings at a front side of the shaft and three second shims located between the upper and lower bushing housings at a rear side of the shaft to space the upper and lower bushing housings and the upper and lower halves of the first and second split bushings to provide a desired clearance between the shaft and the first and second split bushings;
• wherein each of the first shims includes a slot configured for feeding grease to the space between the first and second split bushings;
• wherein the upper and lower bushing housings are secured to the support structure;
• wherein the upper half and the lower half of each of the first and second split bushings each has a flange to provide thrust support;
• and
• wherein an outer side of the flange has a cavity configured hold grease between the flange and an adjacent one of the plurality of compaction wheels.

An earth moving machine comprising, in combination:

• an implement mounting structure;
• and
• a compaction wheel assembly comprising:
• a support structure secured to the implement mounting structure;
• a laterally-extending shaft rotatable relative to the support structure;
• a plurality of compaction wheels spaced apart along the shaft and fixed to the shaft for rotation with the shaft;
• and
• at least one bushing assembly comprising:
• first and second split bushings encircling the shaft and axially spaced-apart along the shaft to form a space therebetween, wherein each of the first and second split bushings has an upper half and a lower half;
• upper and lower bushing housings removably secured together with the first and second split bushings therebetween to clamp the first and second bushings about the shaft;
• and
• at least one first shim located between the upper and lower bushing housings at a front side of the shaft and at least one second shim located between the upper and lower bushing housings at a rear side of the shaft to space the upper and lower bushing housings and the upper and lower halves of the first and second split bushings to provide a desired clearance between the shaft and the first and second bushings;
• wherein at least one of the first and second shims includes a slot configured for feeding grease to the space between the first and second split bushings;
• wherein the upper and lower bushing housings are secured to the support structure;
• wherein the upper haft and the lower half of each of the first and second split bushings each has a flange to provide thrust support;
• and
• wherein an outer side of the flange has a cavity configured hold grease between the flange and an adjacent one of the plurality of compaction wheels.