Design Of Friction Coupler’s Structure By Hydraulic Mechanical Coupling And Reserch Of The Its Characteristics

Modern machinery,especially mining unit,power belt conveyors and other large machinery,usually takes more or less workload when it is in the process of starting to running,which is quite unfavorable to the prime mover.The whole transmission system is under high impact when it is from starting to running normally with overload conditions.When the prime mover start and run overcoming a lot of load,a large starting current and the shock load are generated to impact directly on the grid.If the large capacity prime mover is selected,additional unnecessary resource will be wasted.In order to solve the above problem,drive equipment is requested to have characteristics of buffer,steady working and to safely start overcoming the inertia load of systems gradually.Friction coupler has very important research significance in this field.Based on the fluid coupling principle,oil-gas spring is added to the single-stage friction coupler for the first time and a new machine-fluid coupling friction coupler of 160 KW is designed.First the overall structural is designed.For example the input shaft of friction coupler,centrifugal slide block and the key parts of the oil-gas spring are designed.The 3D modeling of the whole friction coupler is created using Pro/E software.In ensuring the structure layout is reasonable and have no interference,according to the finite element analysis method,the key parts of the coupler are static analysised and the correctness of its structural design is checked through workbench module of ANSYS14.5.Finally the characteristics of hydro-pneumatic spring is mainly analysised,the mathematical model is established,formula of characteristics of damp and stiffness are deduced.And at last,the characteristics of hydro-pneumatic spring is simulated and analysised through MATLAB/SIMULINK software.The final integral desing is finished.