ADDITIONAL SUPPORT AXLE Russian patent published in 2017 - IPC B60B39/00 B62D61/12 

FIELD: agriculture.

SUBSTANCE: additional support axle is installed in front of the tractor and represents a U-shaped rigid welded frame. The frame consists of a longitudinal bar and a transverse bar, is hinged on the tractor frame together with two wheels mounted on the forks and hydraulic cylinders. The additional support axle structure is fixed on the tractor serial linkage via the main frame having lugs. Two longitudinal bars on the edges and one longitudinal bar in the center, having a hinge and a rigid connection with the transverse bar, are hinged to the main frame. Two pairs of longitudinal beams, with a fixed hub for mounting a pneumatic wheel, and two spring shock absorbers are hinged at the bottom of the transverse bar. The spring shock absorber consists of the hydraulic shock absorber and the coil helical spring mounted above the hydraulic shock absorber. The spring shock absorber is fixed by the cylinder of the hydraulic shock absorber on the longitudinal beam and has a fastening (plate) for mounting the coil spring. The rod of the hydraulic shock absorber is hinged on the longitudinal bar and has the second fastening for the coil spring.

EFFECT: improving the agronomic tractor passability due to the uniform distribution of a wheel tractor's own load in all axles.

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