| "Hydraulic and pneumatic transmission" is an important professional basiccourse of mechanical majors in engineering colleges. The course is highly practical.Hydraulic experiment is a necessary supplement and important part of the theoreticalteaching. Hydraulic test stand is the most commonly used experimental of hydraulictransmission teaching and is the integration point of theory teaching and practice. Inorder to adapt technological development and meet the modern hydraulic teachingrequirements, this paper presents a new hydraulic test stand using a variety ofversatile new technology and computer controlled, the overall program of stand aredesigned, and computer simulation, interface design are applied to the benchsuccessfully, making the hydraulic test stand more flexibility and developmentprospects in the experimental teaching.Firstly, a detailed and comprehensive overview of the hydraulic bench wasmade, the development trend of the experimental bench were also analyzed. Theworking principle and composition of the hydraulic system was described, thecomplete hydraulic working drawings were showed, the design process of thehydraulic system was described by a typical hydraulic sequence control circuit forexample, the associated hydraulic components were designed and selected, the overallelectrical circuit diagram, PLC ladder diagram and the software interface applicationwere designed, laid the foundation for the practical application.Secondly, computer simulation software was designed, the typical hydraulicbasic circuit operation,typical structure and working principle of hydrauliccomponents were simulated in the form of understandable animation. The computerinterface was designed to facilitate the operation, laboratory reports archiving,printing and teaching management.In summary, the hydraulic bench newly designed brings technical, practical,flexible expansion together, and conformed the new trends that improve thedevelopment of experimental teaching by virtual instrument technology,the newhydraulic test stand is stable, provides a good platform for teaching. |
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