Chain tensioner for tracked vehicles, especially hydraulic excavator, has second spring cylinder enclosing first tensioning cylinder concentrically to form double cylinder

摘要

The device has a first cylinder forming a tensioning cylinder arranged near a chassis (2) of the chain vehicle and that interacts with a control wheel (3) via a piston rod and a second cylinder forming a spring cylinder that interacts with the first cylinder. The second cylinder encloses the first cylinder concentrically to form a double cylinder.