Structure Analysis And Optimization Of The Mobile Garbage Compression Station

Mobile garbage compression station has a high level of mechanization and automation.It can independently complete the filling and compression of garbage.At the same time,it has a strong performance of garbage compression.The use of garbage compression station can greatly improve the efficiency of garbage transfer and reduce the cost of manpower.With the development of urbanization,mobile waste compression station will have a broad market prospect.The main content of this paper is based on the cooperation between Jilin University and XX Group Branch,the optimization design and analysis of a new mobile waste compression station.Through actual stress test and load analysis,rigid body dynamics and strength and stiffness analysis of waste compression station are carried out by ADAMS and ANSYS software.The mechanical calculation results of each part of waste compression station are obtained,and then the optimization design is guided by the calculation results.Firstly,ADAMS software is used to simulate the rigid body dynamics of the overturning hopper mechanism of the compression station.According to the kinematic principle of the mechanism,a parametric model is established,and the hinge point optimization is carried out with the goal of reducing the constraint force of the hinge point.After many times of optimization,the constraint force of each hinge point is effectively reduced,the performance of the overturning mechanism is enhanced,and the service life is improved.At the same time,the dangerous working conditions of the overturning mechanism in the course of movement,i.e.the overturning angle corresponding to the peak of the constraint force of the hinge point,are obtained.Because the loads on the box and back door of the garbage compression station are complex,the stress and strain of the two parts of the structure are tested to obtain the stress information of the box and the back door when the garbage is full.Then through reasonable hypothesis,the change rule of garbage compression and expansion load in the box was found.According to the comparison between the calculated results and the measured results,the distribution law of the compression expansion load is fitted in accordance with the actual compression expansion load.Finally,the effective and reasonable friction load is calculated according to the compression expansion load and the garbage self-weight load,and the load of the back door is calculated by the same method.The strength and stiffness of the box and back door of the garbage compression station are calculated in detail by ANSYS software.In this paper,according to the allowable stress of structural materials,the key areas beyond allowable stress are improved to meet the structural safety requirements;then the lightweight analysis is carried out for the purpose of reducing the weight and energy consumption of the whole garbage compression station;finally,in view of the insufficient stiffness of the back door seal,the method of increasing the rib plate and the width of the door frame is adopted to improve the back door and door.The anti-deformation ability of the frame effectively solves the water leakage problem of the mobile garbage compression station in the transit process.