The Virtual Design And Motion Simulation Of Engineering Truck’s Force-speed Differential

The differential is a key component in the engineering truck.Thedifferential is for the drive axle on the allocation of two-wheel speed andtorque.Most differentials,only speed can be allocated on the two-wheel whenneeded,and average torque will be assigned.Mandatory locking differential onlycan be in the case of a slip of the two axles locked,and the differentialperformance will be failed.A free-wheel differential abroad,when fast wheeldrive system is fully disengaged to become a free wheel,the differentialcharacteristics initially have poor power characteristics,and its disadvantages arealso obvious.According to the deficiencies of the existing differentials at homeand abroad,this project developed a new force-speed differential who can bemostly drive the vehicle,stable and reliable,relatively simple structure.Thisdevice can be designed according to main reducer of the drive axle and the sizeof the axle housing structure,thus being able to be used interchangeably with theexisting differentials.As an ideal alternative to ordinary differential device,it hasa broad market prospect.The paper selected ZL-80type wheel loader for simulation study.A briefintroduction on the research status of wheel loader and differential.Analysis ofthe structural characteristics and working principle of force-speed differentialAnd based on the CAXA and SolidWorks softwares,builded the parametricmodel,and completed the force-speed differential three-dimensional model.The article describes the virtual prototype technology and ADAMSsoftware.Through the exchange data between SolidWorks and ADAMSsoftware,add constraints and drivings on the exchanged modified model.Finallycompleted the force-speed differential’s virtual prototype model. By virtual prototype simulation software ADAMS,selected four typicalroads,as ZL-80type wheel loaders road straight ahead and turn theconditions,set the simulation parameters and completed the force-speeddifferential kinematic and dynamic analysis of the simulation.The results provethe correctness of the design of the force-speed differential model as well as itsfunctional integrity.The present study not only designs a new kind of differential for ZL-80wheel loader drive axle,but also is a useful attempt to use virtual prototypingtechnology to design engineering machinery and equipment,thereby furtherproviding a new idea for the development of new and efficient engineeringmachinery and equipment.