Absorption Type Star Soil Sampler Design And Analysis

Deep space exploration originates from the human exploration of the inherent dynamics of nature,and it is of great significance to explore the information of soil strata of the moon,Mars and target asteroids and solve the human living space requirements.Because of the microgravity characteristics and surface complexity of small objects,the sampling function should have the characteristics of low reaction force,high efficiency rock breaking ability,low quality and low power consumption.This paper designs an absorption type sampler,auxiliary by rotary impact crushed rock and airflow incentive way to get samples,supplemented by the Flywheel Energy Storage,Magnetic Control Vibration power consumption to a minimum,the mechanism motion by ADAMS simulation is concluded that the optimal solution,and different sampling drilling performance test of the object.Firstly,the sampling tasks of small celestial objects are analyzed,and the sampling function and index are analyzed in the weak gravity and surface complex sampling environment,and a sampling device of air flow absorption is designed.The Flywheel Energy Storage Mechanism consisting of flywheel,motor and reducer is not only energy saving,but also improves the overall reliability of sampler.The Permanent Magnet of Reverse Symmetrical Distribution further reduces the power consumption and makes it light;The Rotation Impact of the Drill Pipe in the Bearing is able to make the rock crack high efficiency.Air Flow Absorption Sampling solves the problem of weakly gravitational sampling environment.Based on the parameter design of the bit cutting parameters,the mechanical model of the drill cutting star soil is established,and the drilling performance of the drill bit is analyzed.Secondly,on the principle of Flywheel Energy Storage to realize low energy consumption operation,passive Vibration Excitation Magnetic Control was adopted to realize efficient of broken rock,Thick Bead Shafting rushed back to the function,is adopted to realize lightweight,and has carried on the dynamics analysis,respectively.From the principle of Flywheel Energy Storage,the moment of inertia of the flywheel is obtained according to the energy conservation and momentum theorem,and the Motor Parameters are selected.According to Electromagnetic Theory,the relationship between magnetic force and permanent magnet spacing is obtained according to electromagnetic theory and practical experience.The magnetic vibration impact mathematical model is established,and the magnetic force size is determined by combining the MATLAB function diagram.Based on the principle of static strength calculation,the overgain of the bearing is calculated.According to Hertz Theory,the maximum contact stress is analyzed and the allowable static load is optimized.The dynamic simulation analysis of the energy storage drive mechanism is carried out through ADAMS software,the optimal solution of the moment of inertia of the flywheel is obtained.The magnetic driving parts of the reverse symmetric distribution are optimized to verify whether the magnetic force size and the torque of the motor are reasonable.The maximum contact stress and the maximum contact stress are analyzed and calculated.and the magnetic driving parts of the reverse symmetric distribution are optimized and calculated.The simulation analysis shows that the sampling method of the absorption star soil can be used in the low consumption condition and can realize the micro-gravity sampling function,which provides an effective sampling method for deep space exploration.