Abstract
Keywords: traction bar, testing, norms, machinery
The traction bar is a component part of a traction device mounted on the tractor and it is use to the warping of agricultural machinery, with an importance role for the safety circulation on the public roads.
For this the bar must be testing according the European Norms in operation (Directive 89/173/CEE), for to a follow up the comportment - the mechanical resistance, in the case of an accelerated testing at minimum 2.000.000 cycle, at a frequency max. 20 Hz, follow up very good the mounting conditions on the tractor but and the true of the function.
This testing have as aim the determination of bar comportment (in simulated and accelerated conditions work), for to see if the end of the 2.000.000 de cycle appear the fissures, deformations or cracks which can imperil serious the safety on public roads.