Structural Design Of Connector Automatic Docking System And Analysis Of Guide Cone Wear

Connectors are important components that connect electrical lines and gas and liquid pipelines,and their normal operation is the basis for equipment operation.As industrial equipment has higher and higher requirements for automation and intelligence,the automatic docking and separation technology of connectors is becoming more and more important.For example,in some special equipment experiments,due to the particularity of the working environment,the connectors cannot be manually docked,and it is necessary to realize remote fully automated docking and separation.At the same time,in order to ensure the safety of the docking of various connectors,it is also necessary to ensure the reliability of the automatic connector docking system.Therefore,this paper designs a passive compliant connector automatic docking system,and analyzes the wear of the key components of the guide rod and the guide cone to ensure that its wear life is greater than the use requirement.Firstly,the functional requirements for automatic docking of connectors under the experimental conditions of a certain special equipment are analyzed.This paper determines the use of passive and compliant docking methods,and designs the mechanical structure of the automatic docking system for connectors.The adaptive mechanism is adopted to realize the conversion between the fixed and follow-up states of the connector motherboard,so as to realize the passive compliance function of the device,and then cooperate with the propulsion mechanism to realize the function of automatic docking and separation.Secondly,in order to ensure the reliability of the automatic docking system of the designed connector,this paper studies the wear life of the guide cone of its key parts.By analyzing the docking process of the automatic docking system of the connector,the force state of the guide rod and the guide cone is analyzed,and the force equation of the contact area of the two parts is obtained.Combined with its wear type,a guide cone wear depth model based on Archard wear theory is established.Use ABAQUS finite element software to simulate and analyze the wear depth of the guide cone.The UMESHMOTION subroutine is written to calculate the amount of single wear,so as to control the movement of the ALE grid node to obtain the wear depth of the guide cone.After repeated iterations,the total wear depth of the guide cone after multiple docking is obtained.Finally,using MATLAB to fit the relationship equation between the wear depth and the number of butt joints,the wear life of the guide cone can be calculated.Finally,in order to verify the correctness of the guide cone wear model,a physical prototype of the connector automatic docking system was built,and the wear test was carried out on the prototype.Observation of the worn surface of the guide cone through a metallographic microscope has verified that the wear type of the guide cone is mainly adhesive wear;the test results are compared and analyzed with the theoretical results to verify the correctness of the wear model.Finally,according to the research results of the full text,the design of similar guide rods and guide cones and the maintenance of the device are proposed respectively.This paper designs a passive compliant connector automatic docking system for a certain special equipment,and analyzes the wear of the key components of the guide cone,which has a certain engineering application value for the design and application of other similar docking systems.