Mechanism of the wheel eccentric load phenomenon of hydraulic transmission engineering vehicle and its improvement measures
Mechanism of the wheel eccentric load phenomenon of hydraulic transmission engineering vehicle and its improvement measures
Blog Article
The hydraulic transmission engineering vehicle has the phenomenon of wheel eccentric load in the driving process, which seriously affects its safety.Therefore, a dynamic model of engineering vehicle considering the transmission system is established in SIMPACK software.The variation of wheel eccentric load with driving torque and its effect on wheel load reduction rate are studied.
The influence of torque transmitted by cardan shaft on wheel load is analyzed.In addition, the calculation model of wheel eccentric load are established for theoretical analysis in MATLAB software.The mechanism of the wheel eccentric load phenomenon is revealed and the structure is improved to reduce the phenomenon.
The results show that when the engineering vehicle is driven, there is the phenomenon of wheel eccentric load.The left wheel load of the first and fourth position wheelsets is increased, while knowall.blog the right wheel load is decreased; The right wheel load of the second and third position wheelsets is increased, while the left wheel load is decreased.The wheel eccentric load phenomenon increases the wheel load reduction rate by 19.
68%, affecting the safety of the engineering vehicle.The torque transmitted by the cardan shaft causes the wheel eccentric load, and the direction of it influences whether to increase or decrease of the wheel load.The degree of wheel eccentric load is influenced by the torque transmitted by the cardan shaft.
The simulation results are peperomia double duty in good agreement with the calculation results, which fully demonstrates the mechanism of the wheel eccentric load phenomenon is reliable.Compared with the original model, the axle load transfer of the improved model has almost no change, but the wheel eccentric load of the improved model is up to 3.41kN, which is reduced by 83.
57%, and the wheel load reduction rate is reduced by 27.71%.The improved measure can effectively reduce the degree of wheel eccentric load.
The research results can provide theoretical reference for improving the safety of engineering vehicle.