FORESTRY TRACTOR Russian patent published in 1997 - IPC

FIELD: mechanical engineering; timber industry. SUBSTANCE: forestry tractor has engine-transmission unit 1 with cab 3, gearbox 4, final drives and engine 5 and propelling unit 2 with track bogies 7, idlers 9 and 10, tension adjuster 11, spring 31, road wheels 8 and sidemembers. Novelty is provision of intermediate frame 15 coupling engine-transmission unit 1 with propelling unit 2 forming processing platforms. Intermediate frame 15 is provided with stops 36. Vertical travel limiters 33 and buffers B are arranged inside springs 31 of track bogies. Engine-transmission unit 1 is installed for turning through 180 degrees. EFFECT: enlarged operating capabilities. 8 dwg