REPLACEABLE PNEUMATIC TRACK SEMI-CATERPILLAR RUNNING GEAR Russian patent published in 2013 - IPC B62D55/24 

FIELD: transport.

SUBSTANCE: invention relates to automotive industry, particularly, to harvesters and aims at increasing their flotation of damp soils. Proposed running gear comprises two parallel caterpillar propulsors. Caterpillar propulsor 1 comprises drive sprocket 2, frame with external and internal rails 4, 5 to support guide wheels 6 and tensioning mechanism 7 and traction elastic belt 8 with reinforcing elements 9. Said reinforcing elements 9 are made integral with guides 10 of track wheel rollers 11 and arranged spaced part, holes 12 being made in their spacing to receive teeth of drive sprocket 2. Steel cord 13 covers reinforcing elements 9 above runway 14. Reinforcing element 9 has ball-like pin 11 whereto secured is pneumatic track 21 by means of cap 16, external sleeve 17 welded to flange 18 and split bush 19 with spherical hole 20. Side surface 30 of pneumatic track 21 has annular crimps while compression spring 32 is arranged there inside.

EFFECT: higher flotation and stability, higher power efficiency.

3 cl, 6 dwg