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压力机在使用过程中,由于种种原因可能产生过载现象。为了防止过载,压力机上装有过载保护装置。我国的中小型压力机上多采用HT20—40的单剪切面压塌块做过载保护装置(见图1)。
Press during use, due to various reasons may produce overload. In order to prevent overload, the press is equipped with overload protection device. China’s small and medium-sized presses on the use of multi-HT20-40 single shear surface collapse blocks do overload protection device (see Figure 1).