Research On Mechanical Hydraulic Hybrid Energy-saving System And Performance Parameters For ZL50Loader

Due to the working condition of the majority of construction machinery is very complex,load rapid change, lead to poor performance of the machine and the energy is not fullyutilized, such as loaders.what’s more, in recent years,people take more and more attention tothe machine energy recovery and re-use. Therefore, improving fuel efficiency andperformance of the machine, making it more efficient, energy-saving, durability and comfortis more important in the work.The paper make ZL50loader as object, research its mechanical hydraulic hybridenergy-saving system and performance parameters, the purpose is to reduce the of ZL50loader energy consumption and improve its overall performance.The mechanical hydraulichybrid energy-saving system is a combination of mechanical hydraulic hybrid transmissionand hydraulic hybrid. The paper have designed mechanical hydraulic hybrid transmission,And analyzed its shifting mechanism, speed characteristics, geometric characteristics, smoothshifting conditions, torque characteristics and hydraulic power flow ratios.The paper havedesigned loader regenerative braking system to recover braking energy and downhill potentialenergy, and to establish mathematical models of critical components and systems.In this paper,we have made matching research about the key parameters of the ZL50loader mechanicalhydraulic hybrid energy-saving system, it including reasonable choice of parameters andmatching of hydraulic components, hydraulic energy-saving power system performanceparameters match and driveline convergence device and file Ratio design calculations.Andmake its drive systems and energy-saving devices matching theoretical calculation based onthe general parameters of a ZL50loader, The results show that reasonable parameters matchhave reached to reduce of ZL50loader energy consumption, to improve its overallperformance. We have made dynamic simulation on ZL50loader mechanical hydraulic hybridenergy-saving system through simulation software AMESim and MATLAB/Simulink,theconclusions show that the results of the simulation data and theoretical calculations arebasically consistent, the mechanical hydraulic hybrid energy-saving system reach thetheoretical requirements, improve overall performance, and achieve the expected energysaving effect.