BACKGROUND

The present disclosure relates to a work vehicle including vibration mitigation components.

SUMMARY

Many work vehicles seek to avoid vibration transfer to the cab. Such work vehicles often include the cab supported by one or more springs to mitigate vibration transfer. Even these work vehicles, however, can experience vibrations at resonant vibration frequencies for certain work vehicle speeds. These vibrations can cause a significant amount of noise. What is needed, therefore, is a work vehicle including one or more components to more effectively mitigate vibrations, especially vibrations at resonant vibration frequencies.

In one aspect, the disclosure provides a work vehicle including a frame, an axle, a cab supported by the frame, a first tuned mass damper assembly, and a second tuned mass damper assembly. The frame includes a first longitudinal frame member and a second longitudinal frame member. The first longitudinal frame member has a first rear end, and the second longitudinal frame member has a second rear end. The second longitudinal frame member extends parallel to the first longitudinal frame member. The axle extends perpendicular to the first and second longitudinal frame members. The cab is disposed on a side of the first and second longitudinal frame members opposite the axle. The first tuned mass damper assembly is mounted on the first longitudinal frame member between the first rear end and the cab. The second tuned mass damper is mounted on the second longitudinal frame member between the second rear end and the cab.

In another aspect, the disclosure provides a work vehicle including a frame, an axle, and a tuned mass damper assembly. The frame includes a longitudinal frame member. The axle extends perpendicular to the longitudinal frame member. The tuned mass damper assembly is mounted on the longitudinal frame member on a side opposite the axle. The tuned mass damper assembly includes a mounting plate, a rear weight, and a rear resilient layer. The mounting plate includes a frame end and a weight end opposite the frame end. The frame end is coupled to the longitudinal frame member. The rear weight is disposed on a rear side of the mounting plate. The rear resilient layer is disposed between the mounting plate and the rear weight.

In yet another aspect, the disclosure provides a tuned mass damper assembly for use with a work vehicle. The tuned mass damper assembly includes a mounting plate, a pair of weights, a pair of resilient layers, a fastener, and a spacer. The mounting plate includes a frame end configured to be coupled to the work vehicle and a weight end opposite the frame end and angled relative to the frame end. The pair of weights are coupled to each other and disposed on opposite sides of the mounting plate. The pair of weights are disposed on the mounting plate nearer the weight end of the mounting plate than the frame end of the mounting plate. Each of the pair of resilient layers is disposed between the mounting plate and a corresponding weight of the pair of weights. The fastener couples the pair of weights to each other. The fastener also extends through the mounting plate and through the pair of resilient layers. The spacer at least partially surrounds the fastener. The spacer is disposed longitudinally between the pair of weights. The spacer is also disposed laterally between the fastener and the mounting plate and between the fastener and each resilient layer.

Other aspects of the disclosure will become apparent by consideration of the detailed description and accompanying drawings.

