Agricultural tractor is driven by four sets of continuous revolving track, with two sets at rear and two at front, rear sets not beign steerable

摘要

The agricultural tractor (1) is driven by four sets of continuous revolving track (2,3,4,5), with two sets (2,3) at the rear and two (4,5) at the front. The rear sets are not steerable. One continuous track set (4) at the front comprises a track (6) fitted around three circulation components (7,8,9), thus forming a triangular shape. The lowermost circulation components (7,8) comprise coaxial wheel pairs, between which there is space. The uppermost circulation component (9) comprises a steel drive wheel on the outside of which are recesses which accommodate the ridges of the track (7) of the front track (6). This drive wheel is in fact a sprocket wheel. The steel drive wheel is located in an uppermost frame part (12) which comprises a bottomless trough construction (13) enclosing the under side of the drive wheel.