大型液压机的主缸液压系统设计改进（Design improvement of main cylinder hydraulic system of large hydraulic press）.docVIP

大型液压机的主缸液压系统设计改进（Design improvement of main cylinder hydraulic system of large hydraulic press） Design improvement of main cylinder hydraulic system of large hydraulic press Wangqiumin [Abstract] in this paper, the hydraulic system design problems are analyzed and some solutions are put forward in view of the strong impact and tremendous noise caused by the return of the main cylinder of a large hydraulic machine. Hydraulic press; hydraulic system design; improvement Abstract: In this article the problems on the design of hydraulic system were analysed, and the solutions were given in connection with the phenomena that strong impact and large noise will take place in the return trip of an large-scaled hydraulic machines main cylinder. Keywords:Hydraulic-Machine, Hydraulic, system, Improvement, on, the, Design In the hydraulic system of large power hydraulic machine, the working pressure is very high, when the main hydraulic cylinder cavity with pressure and pressing, high pressure oil has great energy, in addition to promoting the work of cylinder piston downward, will make the cylinder frame, cylinder, hydraulic components, pipes and joints produced different degrees of elastic deformation, a lot of energy savings. When pressing or packing is completed, cylinder line, cylinder through the oil return, to the sudden release of the oil pressure chamber and a frame portion can accumulate savings of elastic deformation, and the frame system will quickly rebound, will instantly generate strong vibration and great noise; the pressure reduction process, and rupture of gas cylinder supersaturated precipitation dissolution intensified this effect, the normal operation of the equipment is extremely unfavorable, resulting in a strong pressure gauge pointer jitter and system produce gun phenomenon. This phenomenon is caused by the lack of understanding of energy release in the design of high pressure and large flow system, and the effective and reasonable pressure relief measur