APPARATUS FOR MOUNTING A TRACK FRAME TO A FRAME OF A POWER MACHINE

摘要

Disclosed embodiments include power machines, track frame assemblies, and apparatus for mounting a track frame assembly to a frame of a power machine. In various disclosed embodiments, mounting structures mount a track frame to the machine frame. In some exemplary embodiments, each mounting structure includes two torsional joints and at least three non-torsional joints between the machine frame and the corresponding track frame. The two torsional joints can be provided by torsion shafts and the corresponding attachments to front and rear arms. In exemplary embodiments, the at least three non-torsional joints are substantially free to rotate and can include a joint between a front axle and the track frame, a joint between a rear axle and a link, and a joint between a link pin and the track frame. In some exemplary embodiments, the front or rear arms are oriented relative to corresponding torsion shafts to improve performance.

主权项

1. A power machine, comprising:
a machine frame; first and second track frames each positioned on different sides of the machine frame; first and second front mounting structures each mounting one of the first and second track frames to the machine frame, each of the first and second front mounting structures comprising:
a front torsion shaft coupled to the machine frame;a front arm coupled to the front torsion shaft, the front arm oriented to extend forward and upward from the front torsion shaft; anda front axle coupled between the front arm and the corresponding first or second track frame; and first and second rear mounting structures each mounting one of the first and second track frames to the machine frame rearward of the front mounting structures, each of the first and second rear mounting structures comprising:
a rear torsion shaft coupled to the machine frame;a rear arm coupled to the rear torsion shaft;a rear axle coupled to the rear arm;a link coupled to the rear axle; anda pin coupled between the link and the corresponding first or second track frame.