Research On Vibration Reduction System Of Heavy-load Mobile Robot Wheel System Based On Adverse Road Conditions

Automated Guided Vehicle(AGV)refers to a transport vehicle equipped with automatic guidance devices such as electromagnetic or optical devices,which can be guided along a predetermined route,and has safety protection devices.At present,domestic AGVs are mainly focused on light-duty handling with a carrying capacity of not more than 1000 kg,and have corresponding requirements for driving road conditions.They cannot reliably drive under rough road conditions with rough slopes.In response to the urgent needs of the aluminum profile industry's transformation and upgrading,and the actual production process requires frequent handling in the corresponding processes and different workshops,this article aims to achieve the automatic handling of the aluminum profile industry as the goal.For aluminum profiles under severe road conditions(length specifications 7m,weight 3000kg)The technical problem that heavy-duty AGV gear trains cannot always run reliably during the transportation process.The heavy-duty AGV gear train vibration reduction systems that can be shuttled inside and outside the workshop are researched.The main contents are as follows:(1)Combining the advantages of the vehicle's suspension damping structure with the advantages of the link mechanism,design a new AGV steering wheel vibration damping device.Through theoretical analysis and finite element simulation of the damping spring shock absorber in the suspension vibration damping structure,the corresponding technical parameters were determined,and the corresponding structure of the AGV gear train vibration damping device was designed.(2)Based on the consideration of actual bad road conditions,the static analysis,modal analysis and dynamic analysis of the structure of the heavy-duty AGV gear train vibration damping device are performed to obtain the corresponding motion characteristic curve and the vibration damping device under different road conditions.Corresponding stress and deformation analysis optimizes the compact and lightest vibration damping device.(3)With reference to the severe road conditions of unequal slopes and bumps during shuttles inside and outside the workshop,the corresponding boundary limit loads and constraints were applied to the vibration damping device for dynamic analysis and fatigue life analysis to verify the reliability of the vibration damping device.(4)By establishing a kinematic model of the heavy-duty AGV turning process,the kinematics and dynamic characteristics of the turning process are analyzed,and the finite element simulation of the turning process under bumpy road conditions is performed to further verify the operation stability of the vibration reduction device.