Design Of Virtual Prototype And Experimental Research On Key Technology Of Underwater Hydraulic Shovel

The paper"Research on underwater hydraulic impulsion shovel" is based on the "863"important subject. In the paper the machine body, A kind of underwater hydraulic impulsion shovel is mainly studied that can clear off concrete layer on surface of pipeline. The content studied is these key technology of mechanism of underwater hydraulic impulsion shovel, impulsion principle, driving system and fictitious prototype etc. some experiments are done to validate theory.The paper introduces study background and meaning of underwater hydraulic impulsion shovel, and narrates current situation of operation machines that maintains underwater pipelines. Comparatively perfect hydraulic theory is analysed in the paper.According to design theory of hydraulic impulsion tool and experiment of overseas hydraulic impulsion tool, confirm the structure parameter of the hydraulic impulsion shovel. Dynamics equation in forth and back course is set up. Get relative expression of fro-and-to course and displacement for obtaining change law of system pressure of impulsion piston. Prove the theory that system pressure is regarded as feed-back signal.Analyse choice method of collision point of cylinder and shovel head and confirm initial pressure and volume of nitrogen chamber. Through researching on regulating impulsion energy, design accumulation. Analyse three schemes of hydraulic impulsion shovel, and chose finally the scheme that high-speed swith valve controls hydraulic impulsion shovel.Analyse and design mechanism, seal structure, shape of shovel head and length of tool chamber .etc of underwater hydraulic impulsion shovel. Sculpt the shovel with Pro/e, and examine and correct the design through fictitious assembly. Examine intensity of the key parts further with finite element. Through analysing kinetics of underwater hydraulic impulsion shovel, with Pro/e and Adams, simulate and analyse the impulsion shovel, in order to examine theory analysis and structure design which have been done in front.Set up the hydraulic pressure system and controlling model of the shovel through analyzing controlling model of every part of the shovel, moreover...