Development Of Servo Soft Cable Lifting Device

At present,in order to reduce costs and improve production efficiency,domestic workshops such as product processing,assembly and production widely use equipment such as crane and booster manipulator to assist in carrying heavy objects.The existing auxiliary handling equipment has simple heavy objects lifting mode,low transportation efficiency,large lifting impact and insufficient safety,which make it is impossible to adapt to high-demand production places.In view of the above existing problems,this paper developed a servo soft rope lifting device controlled by a single chip microcomputer,which can realize stepless speed regulation,soft rope lifting and carrying,real-time weight display,slow start and slow stop,overload alarm and immediate stop functions in the process of lifting and carrying heavy objects.It has the characteristics of fast response speed,and can be combined with a mechanical arm to assist in carrying light and small heavy objects.The main work of this paper is as follows:(1)Sort out the research status of auxiliary handling equipment at home and abroad,determine the technical indexes of the device,draw up the design scheme of mechanical structure and control system,and select the best through analysis and comparison.(2)The mechanical structure mainly designs parts of the winding device and parts of the control handle in detail,and expounds the working principle;based on ADAMS,the dynamic simulation analysis of the movement process of the wire rope winding drum is carried out;and based on the simulation results,the strength of the wire rope is checked to meet the requirements,and the lifting dynamic load coefficient is calculated to ensure that the operation of the device can meet the safe operation requirements of hoisting machinery;ANSYS Workbench is used to carry out finite element analysis on the main parts,whose analysis results show that the mechanical properties of the parts meet the use requirements;finally,finish drawing and external processing prototype.(3)The control system includes hardware circuit design and software programming.The hardware circuit design includes servo driver and servo motor peripheral circuit design,sensor selection and communication connection,MCU controller design,power supply module design.The purpose of software programming is to process the digital signal input to MCU and the digital signal converted by AD,and control the servo motor action through DA conversion output;finally,complete the welding of PCB.(4)Assemble a prototype for testing,and test the power supply module,the single chip microcomputer controller,the different working states of the device and the actual wire rope tension respectively.The results show that the mechanical structure design of the equipment and the control system design of the equipment are reasonable,the equipment operation can reach the technical index,and the practicality is strong.The servo soft cable lifting device prototype developed in this paper has reliable operation,convenient operation,high transportation efficiency,wide application range and good practical application value,which has certain promotion significance for promoting the development of this field.