SUSPENSION OF CRAWLER TRACTOR TRACK IDLER Russian patent published in 2000 - IPC

FIELD: crawler tractors with semirigid suspension and adjustable track tension. SUBSTANCE: proposed device has two hollow cylindrical beams hinge coupled with tractor frame in its rear part. Hollow beam is made in form of rectangular section tube. Support with projecting front part is placed inside beam. Axle of track idlers arranged symmetrically relative to beam is stationary secured in support. Front part of support has projection for hinge coupling with tensioner. Tensioner is secured on outer plane of beam by means of spherical stop and bracket. Hollow rear part of support has centering projections providing displacement of support along beam with optimum clearance. This part of support has port enclosing end of stop secured in threaded hole of beam. EFFECT: simplified design, reduced overall dimensions of device. 3 dwg