论文部分内容阅读
根据冶金部1976年下达的“露天矿强化开采”国家重点科研项目,要求研制采场大块二次破碎高能液压碎石机,取代二次爆破。长沙矿山研究院通过调研,应用液垫传递冲击能量的原理,于1977设计出我国第一台SYD—400型液垫式高能液压碎石机。1978年嘉兴冶金机械厂试制出样机。橡胶件由西北橡胶工业制品研究所试制。经实验室调试和在南京白云石矿进行现场试验改进,解决了高速密封间隙、密封件、摩擦副选材和防拉伤、连接件防松等技术关键。1983年8月至11月在南京白云石矿
According to the State Key Scientific Research Project of “Enhanced Exploitation of Opencast Mine” issued by the Ministry of Metallurgy in 1976, it is required to develop a large secondary crushing high-energy hydraulic rockblast machine to replace the secondary explosion. Changsha Research Institute of Mining through the investigation, the application of liquid cushion transfer impact energy principle, in 1977 designed our country’s first SYD-400 type pad hydraulic high hydraulic breaker. Jiaxing Metallurgical Machinery Factory in 1978 pilot prototype. Rubber parts trial by the Northwest Rubber Industrial Products Institute. After the laboratory commissioning and the on-site test improvement in Nanjing dolomite mine, the key technologies of high-speed sealing gap, sealing material, friction pair material selection and anti-strain and connection anti-looseness are solved. 1983 August to November dolomite mine in Nanjing