Structure Optimization Of Double Unloadng Groove Type Axial Piston Pump And Finite Element Analysis Of Key Components

Axial piston pump is an important component in the hydraulic system,with high power density,high pressure,high flow,etc.It is the most complex hydraulic transmission,the highest technical content of one of the components.Widely used in all kinds of mechanical products,especially in the field of Mechanical Engineering.The three key motion pairs of the swash plate axial piston pump are composed by a pair of piston pairs,a pair of slipper pairs and a flow distribution pair.Determined the performance of the piston pump and its useful life.Therefore,in order to improve the working performance of the swash plate type axial piston pump,it is necessary to study the working characteristics of the plunger pair,the slipper pair and the flow distribution pair.The plunger,the distribution plate and the shoe are the key components in the above-mentioned movement pair.If the design of the structure size is not reasonable,will lead to a decrease in the performance of the pump or even scrapped.So it is very important to study the piston pump.Therefore,this part chooses some parts of the swash plate type axial piston pump to carry on the key research.Firstly,the background of the research is introduced,and the research status,research methods and software used at home and abroad are introduced.Secondly,some key components of the swash plate type axial piston pump are analyzed to find out the problems in the process of the actual working process of the swash plate type axial piston pump,and find out the cause of the problem,and then a new structural design.Thirdly,for the redesigned components,the finite element analysis software ANSYS-Workbench is used to carry on the finite element analysis to the redesigned components,and then into the swash plate type axial piston pump to carry out the necessary simulation,the simulation The results are compared with the simulation results obtained from the previous components,and the improved performance is observed.Through the purpose of improvement is to make its structure more reasonable,more stable performance,work more reliable.Finally,for the large part of the axial piston pump-the drive shaft,ANSYS-Workbench software is used for modal analysis,structural statics analysis,to its top 10 natural frequency,vibration mode,specific force condition and Its structure to the frequency of the response.To avoid the piston pump shaft in the work of resonance phenomenon.