我国生产的机械压力机,按JB1646—83技术标准的规定,“必需具有可靠的超载保险装置”。长期以来,国内普遍采用压塌式保险决结构作超载保险装置,如图1所示(为了与液压超载保险装置区别,把压塌式、剪切式结构称为刚性超载保险装置),该结构是1959年参考苏联资料设计的。据用户 China’s production of mechanical presses, press JB1646-83 technical standards, “must have a reliable overload insurance device.” For a long time, China has generally adopted the collapse of the insurance structure for the overload insurance device, shown in Figure 1 (in order to be different from the hydraulic overload safety device, the collapse type, shear structure called rigid overload insurance device), the structure It was designed according to the Soviet Union data in 1959. According to the user