Structural Design And Performance Analysis Of New Magnetic Slipper Pair

As the direct undertaker of the plunger cavity pressure,the oil film performance of slipper pair is an important factor affecting the high pressure and flow quantization of axial piston pump/motor.On the basis of the original magnetic slipper pair,the slipper structure of the axial piston motor driving on both sides is improved,and a new magnetic slipper pair structure is proposed,which can make the main coil produce stable electromagnetic force to absorb the changing electromagnetic force generated by slipper and auxiliary coil to balance the liquid pressure and inertia force.The oil film state of slipper pair can be adjusted to improve the working performance of axial piston pump/motor.This paper determines the specific structure of the new magnetic slipper pair,designs and calculates the size of plunger,slipper and electromagnetic structure,and introduces the working principle of the new magnetic slipper pair in detail.According to existing dynamics and electromagnetism theoretical basis,slip soles is derived by static pressure,hot wedge force,dynamic pressure and the formula of electromagnetic force,through the MATLAB programming for single coil magnetic field of magnetic induction intensity and four iron core coil magnetic field superposition to verify the formula of magnetic induction intensity,the use of ANSYS sliding boots and plunger in the fluid pressure and swash plate supporting force at the bottom of the stress and deformation under the action of situation analysis,on the basis of mechanical model of magnetic inclined plate electromagnetic simulation,analysis of main axis,secondary coil and magnetic inclined plate on the magnetic field intensity and magnetic field distribution,According to the simulation results,the electromagnetic structure parameters of the new magnetic slipper pair were optimized,and the orthogonal test was designed to analyze the primary and secondary factors affecting the magnetic field distribution of the magnetic inclined disk and the optimal parameters.Finally,the following conclusions were drawn:(1)The change trend of the magnetic induction intensity curve after magnetic field superposition is the same as that of a single magnetic field,and the magnetic induction intensity value is roughly four times of the magnetic induction intensity value generated by a single magnetic field,indicating the rationality of the magneticinduction intensity formula;(2)According to the orthogonal test,the primary and secondary factors affecting the magnetic field strength of the miter plate are the incoming current in the coil,the diameter of the core and the thickness of the coil,and the larger the incoming current in the coil,the smaller the diameter of the secondary core and the thickness of the secondary coil,the greater the magnetic field strength and the smaller the uniformity of the magnetic field on the circumference of the miter plate slipper distribution.The research results lay a foundation for the practical application and popularization of new magnetic slipper pairs.Figure [44] table [5] reference [75]...