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对于液压缸为半球形的6300 k N缸梁一体式压力机,半球形液压缸兼做上横梁,是缸梁一体式压力机的主要给力与承载构件,它与传统的液压缸为圆筒形的三梁四柱式液压机相比,结构和受力状态都发生了很大改变,从而可以降低质量,增加设备的公称压力。通过数值模拟分析了满载时缸梁一体结构,以及活动横梁与下横梁的应力分布和变形挠度。结果表明,缸梁一体结构的等效应力极值为70.0 MPa,最大变形挠度为0.16 mm·m-1;活动横梁的等效应力极值为54.4 MPa,最大变形挠度为0.10 mm·m-1,下横梁的等效应力极值为141.5 MPa,最大变形挠度为0.15 mm·m-1。缸梁一体式液压机机身结构的强度和刚度均符合设计要求,满载时无论是等效应力,还是变形都在可接受范围内。
For the cylinder hemispherical 6300 kN cylinder beam integrated press, hemispherical hydraulic cylinder also serves as the upper beam, is the main force and load-bearing member of cylinder-beam integrated press, it is cylindrical with the traditional hydraulic cylinder Compared with the three-beam four-post hydraulic press, the structure and the stress state have undergone great changes, which can reduce the quality and increase the nominal pressure of the equipment. Through the numerical simulation, the integral structure of the cylinder-beam and the stress distribution and deformation deflection of the movable beam and the lower beam are analyzed. The results show that the equivalent stress of the integral structure is 70.0 MPa and the maximum deformation deflection is 0.16 mm · m-1. The equivalent stress of the movable beam is 54.4 MPa and the maximum deformation deflection is 0.10 mm · m -1 , The equivalent stress of the lower beam is 141.5 MPa, and the maximum deformation deflection is 0.15 mm · m-1. Cylinder beam integrated hydraulic machine body structure strength and stiffness are in line with design requirements, full load whether it is equivalent to the stress, or deformation are within acceptable range.