Jiaozuo Zhongxin Heavy Industry Machinery Co., Ltd. study crushing equipment, digging up the rock crushing theory and analysis of new type hydraulic cone crusher of multi cylinder protection measures. The new cone crusher is a multi cylinder hydraulic cone crusher, in the mine production, its working condition is very bad, often there is a danger of iron overload, the hydraulic protection system plays an important role in the protection of the damage, reduce the failure and improve the productivity, therefore, it has important theoretical significance and practical significance. The simulation study of the hydraulic system is the first to establish its mathematical model.
Transfer function method is suitable for linear constant system with single input single output and can’t describe the characteristics of the system. It is difficult to get a good result for the hydraulic system with many inherent nonlinearity and very difficult to carry out. The state space analysis law can well compensate for the limitations of the transfer function, and can obtain the state of the system in time domain. Bond graph is a representation method used to describe the energy structure of the engineering system. It gives a concise description of complex structures in a vector form.
