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两种新型液压式碎石机,其中较大的为1700公斤,冲击能为500焦耳,冲击频率每分钟为250～480次;小的为950公斤,每分钟的冲击频率为300～560次。这两种碎石机主要是为安装在17～35吨和12～18吨左右的重型挖掘机上而设计的。这种设备主要是矿山开采时用于捣碎非常大的岩石。用分开的低压液压循环系统维持着冲击能系数,因而可以不受由于油量变化和在高压循环系统中可能产生的压力波动的影响。两种设备的工作压力均为140巴。一种新型减震系统
Two new types of hydraulic rock crusher, the larger one is 1700 kg, the impact energy is 500 joules, the impact frequency is 250-480 times per minute; the smaller is 950 kg, and the impact frequency is 300-560 times per minute. The two types of stone crushers are designed for installation on heavy excavators ranging from 17 to 35 tons and 12 to 18 tons. This type of equipment is mainly used to break up very large rocks during mining. The impact energy coefficient is maintained with a separate low-pressure hydraulic circulatory system and can therefore not be affected by changes in the amount of oil and pressure fluctuations that may occur in the high-pressure circulatory system. Both devices have a working pressure of 140 bar. A new type of damping system