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Characteristic Analysis and Experimental Research of a Biaxial Power Takeoff of Agriculture Vehicles

SHU Hong-yu1,CHEN Bo1,LIU Yu-zhi2,WANG Fa-quan2(1.College of Mechanical Engineering,Chongqing University,Chongqing 400044,China; 2.Public Information of Chongqing Agriculture Commission,Chongqing 401121,China)  
A new kind of biaxial power takeoff was designed for widespread technological issues such as high noise and difficult shift.Dynamic parameters of PTO were worked out,and solid modeling was built on that basis.The dynamic prompting for the torsion and vibration of dynamic gear engagement in multi-work condition is established and the parameterized simulation module is completed.The curve of gears meshing is simulated by imposing external force in the simulation model.The shifting forces were between 510 and 590 N by bench test which meets the requirement of the industrial standard.The problems of vibration and noise in the bench test were analyzed.Vibration acceleration and noise in the characteristic frequency were reduced significantly after improvement.
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